JP7460002B2 - Printed matter, decorative sheet, method for manufacturing printed matter, and method for manufacturing decorative sheet - Google Patents

Description

The present invention relates to a printed matter, a decorative sheet, a method for manufacturing a printed matter, and a method for manufacturing a decorative sheet that have high design quality due to the registration of a picture pattern made with transparent ink and a picture pattern made with colored ink.

Traditionally, mainly in gravure printing, in addition to printing patterns with colored inks that form the pattern, design and performance are imparted by forming transparent ink with high or low gloss on the entire surface, middle, or bottom layer. things were being done. In recent years, due to demands from the market for further improvements in design and performance, there has been an increase in the number of products that are coated with transparent ink not on the entire surface but on a portion of the product that matches the pattern with colored ink. In such products, it is important for improving the design and performance that there is little deviation in the overlapping position (hereinafter also referred to as register) between the colored ink pattern and the transparent ink pattern. However, since the transparent ink is nearly transparent to visible light, it is difficult to see the transparent ink in an automatic registration control device or visual registration, and it is difficult to register the ink with a pattern made of colored ink.

The printed matter and decorative sheet according to the present invention are generally multicolor printed by gravure printing, and the alignment (registration) of each ink color of the pattern is generally performed by an automatic register control device. In the automatic register control device, the printing positions of the register marks are designed so that the alignment marks (hereinafter also referred to as register marks) printed at different positions in the printing direction for each ink color are optically read, and the registration marks are spaced a specified distance apart on the printing press, resulting in correct registration. The above-mentioned register marks are optically read by irradiating the register marks with visible light and reading the reflected light intensity with a light receiving sensor (for example, Patent Document 1).

The above-mentioned registration method in the automatic registration control device is also the same when registering transparent ink with colored ink. However, as mentioned above, transparent ink is difficult to see in visible light, so in a typical automatic registration control device that has a light source in the visible light range, the reflected light intensity hardly changes depending on whether or not there is a registration mark made of transparent ink. In other words, it is difficult to read the registration mark formed by transparent ink with the mark reading means, and so there is a problem that it is difficult to register transparent ink.

To solve the above problem, for example, a method has been proposed in which an additive that emits light from a light source other than the visible light region is added to transparent ink (Patent Document 2).

As another method, a method has been proposed in which a transparent ink (second transparent ink) used for the design and another transparent ink (first transparent ink) with a different glossiness from the second transparent ink are used, i.e., two types of transparent ink are used, and a registration mark (alignment mark) layer made of the second transparent ink is formed on a layer made of the first transparent ink as a base, and the difference in glossiness between the two transparent inks is utilized to read the registration mark (alignment mark) made of the second transparent ink with a mark reading means (Patent Document 3).

Japanese Patent Application Publication No. 10-217432 Japanese Patent Application Laid-Open No. 57-093154 JP 2018-043442 A

However, in Patent Document 2, if an additive consisting of a fluorescent whitening agent that emits light when exposed to ultraviolet light is used, for example when it emits light under black light, or when irradiated with visible light containing a large amount of ultraviolet light, This poses a problem in that the product specifications are limited because the colors appear in a way that is not intended based on the product specifications, such as a color that is different from the intended appearance. Furthermore, in the automatic register control device, it is necessary to change the light source and the light receiving sensor, which causes a problem that the load on the preparation work is high.

In addition, in Patent Document 3, in order to read the registration marks made of the transparent ink (second transparent ink) used in the image, it is necessary to add an ink (first transparent ink) that is not necessary for the image, which means that one printing unit needs to be added, which creates the problem of a significant increase in the process load.

In view of the above, an object of the present invention is to minimize restrictions on product specifications and increase in workload when aligning a pattern formed by colored ink with a pattern pattern formed by transparent ink in printed matters using transparent ink. Another object of the present invention is to provide a printed matter having a high design quality, a decorative sheet, a method for manufacturing a printed matter, and a method for manufacturing a decorative sheet.

The printed matter of the present invention is a printed matter using two or more different inks, including at least one transparent ink, and the printed matter includes, in the width direction, a pattern portion where a pattern is printed and an outer portion where no pattern is printed, the pattern portion is printed with a pattern using all of the two or more different inks, and the outer portion of the pattern is printed with two or more register marks and a register mark base layer, the two or more register marks are printed in two or more different positions for each of the two or more different inks, and the register mark base layer is printed with an ink other than the transparent ink among the two or more different inks so as to overlap at least a portion of the register mark printed with the transparent ink.

In the above printed matter, the amount of ink applied to the register mark base layer may be less than the amount of ink applied to the register mark printed with the ink used to print the register mark base layer.

In the above printed matter, the registration mark base layer may be printed so as to overlap at least a portion of each of the two or more registration marks.

In the above-mentioned printed matter, the amount of ink in the register mark base layer increases stepwise in the direction in which two or more register marks are arranged to reach a predetermined amount, and decreases stepwise from the predetermined amount. Good too.

The printed matter may be printed by gravure printing.

The decorative sheet of the present invention is a decorative sheet that includes the above-mentioned printed matter.

The method for manufacturing a printed matter of the present invention is a method for manufacturing a printed matter using two or more different inks including at least one transparent ink, the printed matter including, in the width direction, a pattern portion having a pattern printed thereon and an outer pattern portion having no pattern printed thereon, the pattern portion having a pattern printed thereon using all of the two or more different inks, the outer pattern portion having two or more register marks and a register mark base layer printed thereon, the two or more register marks being printed at two or more different positions for each of the two or more different inks, and the register mark base layer being printed with an ink other than the transparent ink among the two or more different inks so as to overlap at least a portion of the register mark printed with the transparent ink,
In a printing press for printing a printed matter, the relative registration of two or more different inks in the transport direction is controlled by an automatic register control device,
The automatic register control device includes a conveyance distance detection means for detecting a conveyance distance of a printed material in a printing press, a mark reading means for optically reading a register mark, a control means, and a path length adjustment means,
the control means calculates an amount of misregistration in the conveying direction from signals from the conveying distance detection means and the mark reading means, calculates an amount of movement of the path length adjustment means from the amount of misregistration, and outputs a signal according to the amount of movement to the path length adjustment means;
The path length adjustment means is a method for producing a printed product that controls the register in the transport direction by changing the length of the transport path so that the intervals between the registration marks become predetermined intervals.

In the above-mentioned method for manufacturing a printed matter, the amount of ink applied to the register mark base layer may be less than the amount of ink applied to the register mark printed with the ink used to print the register mark base layer.

In the above-mentioned method for manufacturing a printed matter, the registration mark base layer may be printed so as to overlap at least a portion of each of two or more registration marks.

In the above method for manufacturing printed matter, the amount of ink in the register mark base layer increases stepwise in the direction in which two or more register marks are arranged to reach a predetermined amount, and decreases stepwise from the predetermined amount. You may do so.

In the method for producing printed matter described above, the printing machine may be a gravure printing machine.

The method for manufacturing a decorative sheet of the present invention is a method for manufacturing a decorative sheet including the method for manufacturing the printed matter described above.

According to the present invention, it is possible to provide a printed matter, a decorative sheet, a method for manufacturing a printed matter, and a method for manufacturing a decorative sheet, which have a high degree of design, with fewer restrictions on product specifications, less increase in workload, and a higher degree of design in printed matter having transparent ink. can be provided.

1A is a partial plan view showing an outline of a printed matter according to a first embodiment of the present invention, and FIG. 1B is a partially enlarged plan view of a register mark group portion. 1A is a detailed explanatory diagram of a group of register marks according to a first embodiment of the present invention, (a) is a plan view, (b) is a cross-sectional view taken along line A-A in (a), (c) is a cross-sectional view taken along line B-B in (a), and (d) and (e) are conceptual diagrams of received light amount signals, etc. FIG. 1 is a conceptual diagram for explaining an overview of a printing press and an automatic register control device. 5A to 5C are diagrams for explaining a printing order of a group of registration marks according to the first embodiment of the present invention. FIG. 7 is a detailed explanatory diagram of another example of the register mark group according to the first embodiment of the present invention. FIG. 7 is a detailed explanatory diagram of a group of register marks according to a second embodiment of the present invention. (a) is a plan view, (b) is a sectional view taken along line CC shown in (a), (c) is a sectional view taken along line DD shown in (a), (d) and (e) are received light amount signals. Conceptual diagram such as. FIG. 10 is a detailed explanatory diagram of a modified example of the register mark group according to the second embodiment of the present invention.

[Printed materials]
First Embodiment
A first embodiment of the present invention will be described below with reference to Figures 1 and 2. Note that each of the figures shown below is a schematic diagram, and the size, shape, decoration, etc. of each part are appropriately exaggerated or simplified to facilitate understanding. Also, configurations that are not directly related to the description are appropriately omitted. Note that in each of the figures shown below, the same parts are given the same reference numerals, and some detailed descriptions may be omitted.

FIG. 1(a) shows a printed matter 1 according to a first embodiment of the present invention.
The printed matter 1 has a pattern 2 printed on a part (usually a large part) of the original fabric 10. FIG. 1A is a partial conceptual diagram when the conveyance direction of the printed material 1 in the printing machine is upward from the bottom in the vertical direction in the figure, and the width direction of the printed material 1 is the horizontal direction. In the printed matter 1 in FIG. 1(a), in the width direction, for example, a pattern 2 is printed on most of the printed matter except near both ends. The portion where the pattern 2 is printed in the width direction is called a pattern portion 2. FIG. 1A shows the printing range of the pattern 2, that is, the pattern portion 2. As shown in FIG. In FIG. 1(a), in the width direction of the printed material 1, the part where the pattern 2 is not printed (not the pattern part 2) is called the pattern exterior 3; This is the area near both ends. A group of register marks 29 is printed on a part of the outside of the picture 3, and FIG. 1(a) is an example in which the group of register marks 29 is printed near the left end. Note that, as described above, the following description will be made for the case where the conveyance direction is upward from the bottom in the vertical direction in the figure, but there is no problem even if the conveyance direction is reversed. Furthermore, as will be described later, the unit (order) on which transparent ink is printed does not have to be the final unit (last), and may be any unit (order).

Both the pattern and the register mark group 29 are printed in the same printing process, but the pattern 2 printed on the pattern section 2 is a printed pattern that makes the printed material 1 recognizable as a product. Examples include wood grain patterns, stone grain patterns, cloth grain patterns, skin pattern patterns, geometric patterns, letters, symbols, line drawings, various abstract patterns, packaging patterns for food packaging, and other packaging patterns. On the other hand, what is printed on the outside of the pattern 3 (not applicable to the pattern 2) includes, in addition to the above-mentioned register mark group 29, a chart showing the plate density (ink volume) of each ink, so-called register marks (marks). , characters, symbols, etc. for distinguishing products, and are mainly used for managing the printing process and managing the products after printing.

In the above example, the portion where the pattern 2 is not printed (i.e., the outside of the pattern 3) is only near both ends in the width direction, but this is not limited to the above, and the printed matter 1 may have a portion where the pattern 2 is not printed (outside of the pattern 3) that is not near both ends in the width direction. In such a case, it is conceivable that after the printing process, the portion where the pattern 2 is not printed may be slit or punched out to separate the same product into multiple pieces, or into multiple different products, and even in such a case, the printed matter 1 of the present invention includes the portion before or after slitting or punching.

The following description of the present invention will be given using an example in which four different inks are used, one of which is a transparent ink. In other words, this is an example of four-color printing, one of which is a transparent ink.

FIG. 1(b) is a partially enlarged plan view of the register mark group 29 after printing the final unit (fourth unit). As shown in FIG. 1(b), the register mark group 29 includes a register mark base layer 20, a first unit register mark 21, a second unit register mark 22, a third unit register mark 23, and a fourth unit register mark 24. Contains. Since the present invention relates to the registration of transparent ink, at least one of the first unit registration mark 21, the second unit registration mark 22, the third unit registration mark 23, and the fourth unit registration mark 24 is made of transparent ink. printed. That is, at least one of the four units involved in printing is a unit that prints transparent ink. In FIG. 1(b), an example is shown in which transparent ink is used as the ink related to the fourth unit.

The printed matter 1 is a printed matter 1 using two or more different inks, including at least one transparent ink. In the pattern part 2, a pattern using all the inks of two or more different inks is printed, and in the pattern part 2, there are two or more registration marks and a pattern below the registration mark. The two or more register marks are printed in two or more different positions for each ink of two or more different inks, and the register mark base layer 20 is printed with two or more different inks. The mark is printed using an ink different from the transparent ink so as to overlap at least a portion of the register mark printed with the transparent ink.

The following description will be given with reference to FIG. 1(b). The printed matter 1 is a printed matter 1 using four (two or more) different types of ink (first unit ink 11 to fourth unit ink 14) including one (at least one or more) type of transparent ink 14. In the width direction, the printed matter 1 includes a pattern portion 2 on which a pattern is printed, and a pattern outer portion 3 on which no pattern is printed. In the pattern portion 2, the pattern 2 is printed using all four different types of ink (11 to 14). In the pattern outer portion 3, four (two or more) types of register marks (first unit register mark 21 to fourth unit register mark 24) and a register mark base layer 20 are printed, and the four types of register marks (21 to 24) are printed in four (two or more) different positions for each of the four different types of ink (11 to 14). The registration mark base layer 20 is printed with an ink (third unit ink 13, details will be described later) different from the transparent ink 14 among four different types of ink (11 to 14) so as to overlap at least a part of the fourth unit registration mark 24 (transparent ink registration mark 24) printed with the transparent ink 14.

Figure 2(a) is a partially enlarged plan view of the register mark group 29, similar to Figure 1(b). For convenience of explanation, in Figure 2(a), the register mark group 29 in Figure 1(b) is shown rotated 90 degrees to the left. Therefore, the conveying direction of the printing press in Figure 2 is from right to left as shown in the figure. Furthermore, the register marks (first unit register mark 21 to fourth unit register mark 24) are usually flattened rectangular shapes whose long sides run in the width direction of the printed matter 1 (the up-down direction in Figure 2(a)). However, the register marks according to the present invention are not limited to rectangular shapes, and may be triangular or other shapes as other examples.

FIG. 2(b) is a cross-sectional view of a portion of FIG. 2(a) that does not include the register mark base layer 20, that is, a cross-sectional view taken along the line AA shown in FIG. 2(a). FIG. 2(c) is a cross-sectional view of a portion including the register mark base layer 20 in FIG. 2(a), that is, a sectional view taken along the line BB shown in FIG. 2(a).

Figure 2(d) is a conceptual diagram showing the light receiving amount signal 52, the upper threshold SU in threshold processing, and the lower threshold SL by the automatic register control device fourth unit sensor unit 514 in the part in Figure 2(a) that does not include the register mark base layer 20, i.e., the A-A line part. And Figure 2(e) is a conceptual diagram showing the light receiving amount signal 52, the upper threshold SU in threshold processing, and the lower threshold SL by the automatic register control device fourth unit sensor unit 514 in the part in Figure 2(a) that includes the register mark base layer 20, i.e., the B-B line part.

Figure 2(a) shows the registration mark group 29 according to the present invention as a whole. Details will be described later, but in Figure 2, the part of line A-A in Figure 2(a), which shows the part that does not include the registration mark base layer 20, Figure 2(b), and Figure 2(d) show the conventional technology, while the part of line B-B in Figure 2(a), which shows the part that includes the registration mark base layer 20, Figure 2(c), and Figure 2(e) show the present invention.

Next, a printing machine and an automatic registration device will be described using a gravure printing machine as an example.
First, a gravure printing machine and a printed matter 1 printed by the gravure printing machine will be explained. FIG. 3 is a schematic diagram for explaining the outline of a gravure printing machine 40 (so-called four-color machine) having four printing units as an example. Here, we will explain a four-color machine as an example, but if it is a printing machine that has two or more printing units (two-color machine or more), registration between colors is required, and if one of the colors is transparent ink, The present invention can be applied regardless of the number of printing units (number of colors). Further, it is not necessary that the number of units of the printing press 40 and the number of printed colors match, but it is sufficient that the printing press 40 has a number of units that is equal to or greater than the number of printed colors. Further, FIG. 3 is only a schematic diagram, and many mechanisms, many rollers, etc. that are unnecessary for explanation are omitted.

In the printing machine 40 shown in FIG. 3, the roll-shaped raw web 10 mounted on the unwinding section 41 is unwound from the unwinding section 41 to become a continuous sheet-shaped raw web 10. This continuous sheet-shaped raw web 10 is also called a web in the printing machine 40. The web-shaped raw web 10 is first transferred with the first unit ink 11 from the plate cylinder 431 of the first unit in the first unit 1U that prints the first color, passes through the drying unit 45, passes through the path length adjustment means 461 between the first and second units, and reaches the second unit 2U that prints the second color. Similarly, in the second unit 2U, the second unit ink 12 is transferred from the plate cylinder 432 of the second unit, passes through the drying unit 45, passes through the path length adjustment means 462 between the second and third units, and reaches the third unit 3U that prints the third color.

Similarly, in the third unit 3U, the third unit ink 13 is transferred from the plate cylinder 433 of the third unit, passes through the drying unit 45, and passes through the third-fourth unit path length adjustment means 463 to reach the fourth unit 4U which prints the fourth color. In the fourth unit 4U, the fourth unit ink 14 is transferred from the plate cylinder 434 of the fourth unit, and passes through the drying unit 45 in the same manner as the first unit to the third unit, after which it is wound into a roll in the winding section 42.

In the first unit 1U to the fourth unit 4U, the first unit ink 11 to the fourth unit ink 14 are transferred (i.e. printed), respectively, and at this time, the picture 2 is printed on the picture portion 2, and at the same time, the first unit register mark 21 to the fourth unit register mark 24 and the register mark group 29 including the register mark base layer 20 are printed on the outside 3 of the picture.

The manner in which the first unit register mark 21 to the fourth unit register mark 24 and the register mark base layer 20 are printed, and the register mark group 29 is printed will be described with reference to FIG. FIG. 4(a) shows the appearance of the portion where the register mark group 29 is formed immediately after printing of the first unit 1U. In FIG. 4(a), only the first unit register mark 21 is printed. FIG. 4(b) shows the appearance of the portion where the register mark group 29 is formed immediately after printing the second unit 2U (for example, at the position where the automatic register control device second unit sensor section 512 is installed). In FIG. 4(b), in addition to the first unit register mark 21, a second unit register mark 22 is also printed.

FIG. 4C shows the appearance of the portion where the register mark group 29 is formed immediately after printing the third unit 3U (for example, at the position where the automatic register control device third unit sensor section 513 is installed). In FIG. 4C, in addition to the first unit register mark 21 and the second unit register mark 22, a third unit register mark 23 is also printed. Further, a register mark base layer 20 is also printed so as to overlap about half of each of the first unit register mark 21 to third unit register mark 23 in the long side direction. That is, in the explanatory example according to the first embodiment of the present invention, the register mark base layer 20 is printed with the third unit ink 13 in the third unit 3U.

Figure 4(d) shows the appearance of the area where the register mark group 29 is formed immediately after printing of the fourth unit 4U (for example, the position where the automatic register control device fourth unit sensor part 514 is installed). In Figure 4(d), in addition to the first unit register mark 21, the second unit register mark 22, the third unit register mark 23, and the register mark base layer 20, the fourth unit register mark 24 is also printed.

Regarding the register mark group 29 in the state shown in FIG. 4(d), the layer structure of the ink will be explained using a cross-sectional view. In this description as well, an example is shown in which the transparent ink is printed in the final unit, but the printing order of each ink such as the transparent ink is arbitrary. The conveyance direction may be opposite to the example description. FIG. 2(a) is a plan view showing the register mark group 29 in the same state as FIG. 4(d). As described above, FIG. 2(b) is a cross-sectional view of a portion of FIG. 2(a) that does not include the register mark base layer 20, that is, a cross-sectional view taken along the line AA shown in FIG. 2(a). FIG. 2(c) is a cross-sectional view of a portion including the register mark base layer 20 in FIG. 2(a), that is, a sectional view taken along the line BB shown in FIG. 2(a).

As mentioned above, FIG. 2(b), which is a cross-sectional view of line A-A in FIG. 2(a), corresponds to the prior art. In the prior art shown in FIG. 2(b), each ink (first unit ink 11 to fourth unit ink 14) that makes up each register mark (first unit register mark 21 to fourth unit register mark 24) is formed (printed) directly on the surface of the original web 10 (the upper side in FIG. 2(b)).

Meanwhile, as mentioned above, FIG. 2(c), which is a cross-sectional view of line B-B in FIG. 2(a), illustrates the present invention. In the present invention, the register mark base layer 20 is printed with an ink (any of the first unit ink 11 to the third unit ink 13) different from the fourth unit ink (transparent ink) 14, but in this explanation of the first embodiment, the register mark base layer 20 is printed with the third unit ink 13.

In FIG. 2(c), the first unit ink 11 and the second unit ink 12 that respectively constitute the first unit register mark 21 and the second unit register mark 22 are printed directly on the surface of the original web 10 (the upper side in FIG. 2(c)).

The third unit register mark 23 and the register mark base layer 20 are printed with the third unit ink 13 in the third unit 3U. The third unit ink 13 as the register mark base layer 20 is printed not only before and after the first unit register mark 21 and the second unit register mark 22 that have already been printed (left and right direction in FIG. 2(c)), but also in positions that overlap the first unit register mark 21 and the second unit register mark 22. That is, as shown in FIG. 2(c), the third unit ink 13 is printed directly on the surface of the original roll 10 before and after the first unit register mark 21 and the second unit register mark 22, over the first unit ink 11 for the first unit register mark 21, and over the second unit ink 12 for the second unit register mark 22.

Focusing on the third unit register mark 23 and the areas before and after it, the third unit register mark 23 and the register mark base layer 20 printed before and after it are both printed with the third unit ink 13. Therefore, normally there is no optical difference between the register mark base layer 20 and the third unit register mark 23, and it is difficult to optically read the third unit register mark 23.

However, in the present invention, the amount of third unit ink 13 applied to the register mark base layer 20 and the third unit register mark 23 is made different. The difference in the amount of the third unit ink 13 generally appears as a difference in the layer thickness of the third unit ink 13, and optically, the mark reading means (automatic registration control device sensor section 51) receives light. This appears as a difference in quantity. Specifically, the amount of ink on the register mark base layer 20 is smaller than the amount of ink on the third unit register mark 23 printed by the third unit ink 13 that printed the register mark base layer 20. ing.

As mentioned above, differences in the amount of ink applied generally manifest as differences in the thickness of the ink layer. In FIG. 2(c), the layer thickness of the third unit ink 13 is thick at the third unit register mark 23 and thin at the register mark base layer 20. In gravure printing, the amount of ink applied can be changed by either the engraving density (cell density) or the engraving depth (cell depth), or both, of the plate cylinder. That is, the same amount of ink applied, i.e., generally the layer thickness, can be changed by deepening the engraving depth or increasing the engraving density of the plate cylinder in areas where a larger amount of ink is desired, and by decreasing the engraving depth or decreasing the engraving density of the plate cylinder in areas where a smaller amount of ink is desired.

Further, as described above, the difference in the amount of ink applied also appears in the difference in the amount of light received by the sensor section 51 of the automatic register control device. The third unit ink 13 is colored ink, and colored ink generally absorbs (part of) visible light, so the amount of light received by the automatic register control device sensor section 51 whose light source is visible light is as follows: Decreased by colored ink. The larger the amount of colored ink is, the more visible light is absorbed, so the amount of light received by the sensor section 51 of the automatic register control device is further reduced.

In FIG. 2A, the third unit register mark 23 portion where the third unit ink 13 is deposited in a larger amount (thicker layer) than the register mark base layer 20 is darker (darker) than the register mark base layer 20 portion. be observed. In addition, in FIG. 2E conceptually showing the amount of light received by the sensor section 51 of the automatic registration control device, as shown as a portion of the received light amount signal 523 in the third unit registration mark, the third unit The received light amount signal 52 significantly decreases at the unit register mark 23 portion. Due to this significant decrease in the amount of light received, the automatic register control device sensor section 51 detects the third unit register mark 23 printed with the same ink (third unit ink 13) as the register mark base layer 20. is possible.

In this way, since the register mark base layer 20 for improving the detectability of the transparent ink 14 is printed with the third unit ink 13, which is one of the inks (11 to 13) for printing the pattern, There is no need to add another ink and a unit for printing it to improve the detectability of the transparent ink 14. Therefore, the process load hardly increases.

In the fourth unit 4U, a fourth unit register mark (transparent ink register mark) 24 is printed using the fourth unit ink (transparent ink) 14. In the area where the fourth unit register mark 24 is printed, the register mark base layer 20 has already been printed using the third unit ink 13, so as shown in FIG. 2(c), the fourth unit register mark 24 is printed so as to overlap the register mark base layer 20.

In FIG. 2E, which conceptually shows the amount of light received by the sensor section 51 of the automatic registration control device, the portion of the fourth unit register mark 24 has a large amount of light received at that portion, as shown as a received light amount signal 524 in the fourth unit register mark. The quantity signal 52 has increased significantly. As mentioned above, with normal colored ink, the amount of light received decreases in the register marks (21 to 23) portion, whereas the amount of light received increases in the portion of the fourth unit register mark 24 printed with transparent ink 14. ing. Although it seems that the amount of light received hardly changes because it is "transparent," the transparent ink 14 has a higher gloss than other colored inks, that is, it reflects visible light well, so the transparent ink 14 part, that is, the fourth It is considered that the amount of light received at the unit register mark 24 portion increases significantly.

From the above, even if the register mark base layer 20 does not exist and the fourth unit register mark 24 is directly printed on the surface of the original fabric 10, the amount of light received increases due to the gloss, and the fourth unit register mark 24 It seems possible to detect. However, in the case where the register mark base layer 20 does not exist, as shown as part 524 in FIG. 2(d), the degree of increase in the amount of light received by the fourth unit register mark 24 is as shown in FIG. 2(e) according to the present invention. This is a small amount compared to 524 copies.

In the conventional example, i.e., when the registration mark base layer 20 is not present, the surface of the original roll 10 is usually light in color (e.g., white), so it reflects visible light well, and therefore the base amount of received light (the flat portion of the received light amount signal 52 in FIG. 2(d)) is originally large. Even if the amount of received light increases due to the gloss of the fourth unit registration mark 24, the effect of this increase on the originally large amount of received light is small. Therefore, as shown as portion 524 in FIG. 2(d), the upper threshold value SU is never reached, meaning that it is difficult to detect the fourth unit registration mark 24.

On the other hand, when the register mark base layer 20 is present as in the present invention, the register mark base layer 20 is printed with colored ink as described above, so it does not reflect much visible light, i.e., the base amount of light received in the register mark base layer 20 (flat portion of the light reception signal 52 in FIG. 2(e)) is small. On the other hand, the fourth unit register mark 24 reflects visible light well due to its gloss. The fourth unit register mark 24 portion printed on the register mark base layer 20 reflects visible light well, while the register mark base layer 20 portions before and after it reflect less light, so there is a large difference in the amount of reflected light (i.e., the amount of light received) between the register mark base layer 20 portion and the fourth unit register mark 24 portion. This large difference (portion 524 in FIG. 2(e)) causes the upper threshold SU to be exceeded, meaning that the fourth unit register mark 24 can be detected.

In this description of the first embodiment, the first unit ink 11 to the third unit ink 13 are colored inks that are different from each other, and the fourth unit ink 14 is an example of a transparent ink. If the printed material uses transparent ink and is used for a decorative sheet, etc., after printing a colored pattern with colored ink, it is possible to print transparent ink on top of the colored pattern to further enhance the design. many. That is, transparent ink is often printed in the last unit among the units used.

However, the invention is not limited to cases where transparent ink is printed in the final unit. The gist of the present invention is to print a transparent ink register mark directly on the original fabric, and even if an automatic register control device cannot detect the transparent ink register mark, the transparent ink register mark can be printed directly on the original material so that the transparent ink register mark overlaps the transparent ink register mark. By printing the register mark base layer 20, it is possible to detect the register mark made of transparent ink by an automatic register control device, and furthermore, the register mark base layer 20 is printed using colored ink used for printing patterns. It is. From this point of view, the received light amount signal 52 of the automatic register control device is different between a place where only the register mark base layer 20 is printed and a place where the register mark made of transparent ink and the register mark base layer 20 are printed in an overlapping manner. If the transparent ink register mark can be detected due to a significant change, even if the transparent ink register mark is printed first and the register mark base layer 20 is printed over it. I do not care. That is, the unit (order) in which the transparent ink is printed does not have to be the last unit (last), but may be any unit (order).

From the above, the unit that prints the transparent ink is not limited to the final unit, but may be any unit, and the unit that prints the register mark base layer 20 may also be any unit other than the unit that prints the transparent ink. But it's a good thing. However, in any case, the amount of light received by the automatic register control device varies depending on the location where only the register mark base layer 20 is printed and the location where the register mark made of transparent ink and the register mark base layer 20 are printed overlappingly. It is required that the register mark made of transparent ink can be detected by a significant change in the signal 52. Otherwise, the effect of the present application will not be achieved.

Next, an overview of the automatic register control device 50 will be described with reference to Figures 2 and 3. The present invention relates to color registration in the transport direction of the printed material 1 (original web 10), and the automatic register control device 50 described here also automatically controls color registration in the transport direction.

The automatic register control device 50 detects a transport amount detection means (not shown) that detects the transport amount of the printed material 1 (original fabric 10) and each register mark (first unit register mark 21 to fourth unit register mark 24). The amount of misregistration in the conveyance direction is calculated based on the signals from the automatic register control device sensor section 51, the conveyance amount detection means, and the automatic register control device sensor section 51, and the amount of movement of the path length adjustment means 46 is calculated from the amount of misregistration. It has a control section (not shown) that calculates the calculation and outputs a signal corresponding to the calculation to the path length adjustment means 46, and a path length adjustment means 46 that changes the length of the conveyance path between units.

A rotary encoder is often used as the conveyance amount detection means, and although the length of the conveyance path corresponding to one pulse varies depending on the circumference of the plate cylinder, it can be accurately determined from the circumference of the plate cylinder. For example, it is approximately 0.01 mm. Furthermore, if each register mark (first unit register mark 21 to fourth unit register mark 24) is accurately registered in the transport direction, the interval between adjacent register marks is a predetermined length (for example, 20.00 mm). It is designed and arranged to be.

The automatic register control device sensor section 51 is installed immediately after printing each unit, and the automatic register control device second unit sensor section 512 to the automatic register control device fourth unit sensor section are installed in the second unit 2U to the fourth unit 4U. 514 are installed respectively. In the unit that prints the first color, there is no object to be registered and there is no need to read the register mark, so the automatic register control device sensor section 51 is not installed in the first unit 1U in FIG. 3. However, it does not matter if it is installed. Each automatic register control device sensor section 51 includes a light projecting section and a light receiving section. The light projecting section is arranged in the width direction so as to be able to irradiate visible light onto the position where the register mark group 29 of the printed material 1 (original fabric 10) is printed, and the light receiving section receives visible light from among the light emitted by the light projecting section. It is arranged at a position where it can receive the light reflected (or transmitted) at the position where the register mark group 29 of the printed matter 1 (original fabric 10) is formed.

The light receiving section of each automatic register control device sensor section 51 monitors the amount of light received for each pulse of the transport distance detection means (preferably a rotary encoder). When the first unit register mark 21 to the fourth unit register mark 24 pass the automatic register control device sensor section 51, the amount of light received changes for each register mark (first unit register mark 21 to fourth unit register mark 24). The position of each register mark can be known from the change in the amount of light received. Specifically, for example, if the specified design interval of the register marks is 0.01 mm/pulse and the register marks are 20 mm, adjacent register marks should be detected every 2000 pulses (= 20/0.01). However, if the actual interval is 2016 pulses, for example, the register of the rear unit is shifted backward by 16 pulses, that is, 0.16 mm, relative to the previous unit. In other words, it can be seen that the transport distance between the units is longer by 0.16 mm.

The path length adjustment means 46 changes the length of the conveyance path between adjacent units, and is usually a roller with a movable shaft as shown at 461 to 463 in FIG. According to the above example, in order to shorten the length of the transport path between units by 0.16 mm, the first and second unit path length adjustment means 461 must be moved downward in FIG. 3 by 0.08 mm. good. In the above example, based on the schematic diagram of FIG. 3, it was decided that the length of the conveyance path changes by 2.0 times the moving distance of the 1-2 unit path length adjustment means 461, but the 1-2 unit path length The relationship between the moving distance of the adjusting means 461 and the amount of change in the length of the conveyance path is grasped and set in advance.

A method for determining the position of each register mark based on changes in the amount of received light in the sensor section 51 of the automatic register controller will be described with reference to FIG. As mentioned above, FIG. 2(d) shows the amount of light received by the fourth unit sensor section 514 of the automatic register control device in the portion where the registration mark base layer 20 is not included in FIG. 2(a), that is, the portion along line AA. FIG. 3 is a conceptual diagram showing a signal 52, an upper threshold SU, and a lower threshold SL in threshold processing. In the received light amount signal 52 in FIG. 2(d), the upward direction in FIG. 2(d) is the direction in which the received light amount increases, and the distance in the horizontal axis direction is the same in FIG. 2(a) and FIG. 2(d). I'm letting you do it.

The registration of the second unit ink 12 with respect to the first unit ink 11 is performed using information read from the first unit register mark 21 and the second unit register mark 22 by the automatic register control device second unit sensor section 512 in the second unit 2U. It is carried out based on. Immediately after printing of the second unit 2U, the register mark base layer 20 and the third unit register mark 23 printed by the third unit 3U, and the fourth unit register mark 24 printed by the fourth unit 4U are still printed. It has not been. Therefore, since the registration mark base layer 20 printed by the third unit 3U has not yet been printed, the received light amount signal in the second unit sensor section 512 of the automatic register control device is the received light amount signal shown in FIG. 2(d). 52, the received light amount signal 523 portion at the third unit register mark and the received light amount signal 524 portion at the fourth unit register mark correspond to signals obtained by eliminating the detection signal and flattening the received light amount signal 523 portion.

To explain in detail using FIG. 2(d), the received light amount signal 52 before the first unit register mark 21 reaches is the amount of reflected light from the surface of the original fabric 10 and is constant (as shown in FIG. 2(d)). (part to the left of part 521). When the first unit register mark 21 passes, the received light amount signal 52 decreases due to the first unit register mark 21 printed on the original fabric 10 (the received light amount signal 521 at the first unit register mark in FIG. 2(d) portion), and when it passes, the amount of received light returns to normal (the portion between portions 521 and 522 in FIG. 2(d)). Similarly, when the second unit register mark 22 passes, the received light amount signal 52 decreases due to the second unit register mark 22 printed on the original fabric 10 (the received light amount signal 52 at the second unit register mark in FIG. 2(d) 522), and when it passes, the amount of received light returns to the normal amount (the part between the 522 and 523 parts in FIG. 2(d)).

In FIG. 2(d), both the received light amount signal 521 portion in the first unit register mark and the received light amount signal 522 portion in the second unit register mark are below the lower threshold SL. The unit register mark 22 can be detected together, and based on the information, the register of the second unit ink 12 can be adjusted with respect to the first unit ink 11.

Next, the third unit ink 13 is registered relative to the second unit ink 12 in the third unit 3U based on the read information of the second unit register mark 22 and the third unit register mark 23 by the automatic register control device third unit sensor section 513. In this explanation of the first embodiment, the register mark base layer 20 is printed by the third unit ink 13 in the third unit 3U. Hereinafter, in order to explain the difference between the present invention and the conventional technology, both the conventional technology in which the register mark base layer 20 does not exist and the present invention in which the register mark base layer 20 exists will be explained.

First, the conventional technology in which the registration mark base layer 20 does not exist will be described. Since the registration mark base layer 20 is not printed, the received light amount signal in the third unit sensor section 513 of the automatic registration control device corresponds to a flat signal in which the detection signal is eliminated for the portion of the received light amount signal 524 in the fourth unit registration mark in the received light amount signal 52 shown in FIG. 2(d).

In FIG. 2(d), the received light amount signal 522 portion of the second unit register mark 22 and the received light amount signal 523 portion of the third unit register mark 23 are both lower than the lower threshold SL. The third unit register mark 23 can also be detected, and based on that information, the register of the third unit ink 13 can be adjusted with respect to the second unit ink 12. That is, even in the conventional technique in which the register mark base layer 20 does not exist, it is possible to register the third unit ink 13 with respect to the second unit ink 12.

Next, the present invention in which the register mark base layer 20 is present will be explained. Since the received light amount signal in the third unit sensor section 513 of the automatic register control device is in a mode in which the register mark base layer 20 is printed, the received light amount signal 52 shown in FIG. The signal 524 corresponds to a flattened signal without the detection signal.

In FIG. 2(e), since both the received light amount signal 522 portion in the second unit register mark and the received light amount signal 523 portion in the third unit register mark are below the lower threshold SL, the second unit register mark 22 and the third unit register mark The unit register marks 23 can be detected together, and based on that information, the register of the third unit ink 13 can be adjusted with respect to the second unit ink 12. That is, even in the present invention in which the register mark base layer 20 is present, it is possible to register the third unit ink 13 with respect to the second unit ink 12.

Next, the registration of the fourth unit ink 14 with respect to the third unit ink 13 is performed in the fourth unit 4U by the third unit register mark 23 and the fourth unit register mark 24 by the automatic register control device fourth unit sensor section 514. This is done based on the read information. Here, the fourth unit ink 14 is a transparent ink 14.

First, a conventional technique in which the register mark base layer 20 does not exist will be described. Since the registration mark base layer 20 is not printed, the received light amount signal in the fourth unit sensor section 514 of the automatic register control device is the received light amount signal 52 shown in FIG. 2(d).

In FIG. 2(d), the portion of the light receiving signal 524 at the fourth unit register mark only slightly protrudes from the signals before and after it, and does not exceed the upper threshold value SU. Therefore, the fourth unit register mark cannot be detected, and the fourth unit ink 14 cannot be registered with the third unit ink 13. In other words, in the conventional technology in which the register mark base layer 20 does not exist, the transparent ink 14 cannot be registered.

Next, the present invention in which the register mark base layer 20 is present will be explained. The received light amount signal in the fourth unit sensor section 514 of the automatic register control device is the received light amount signal 52 shown in FIG. 2(e) since the register mark base layer 20 is printed.

In FIG. 2E, the received light amount signal 524 portion of the fourth unit register mark 24 exceeds the upper threshold value SU because the register mark base layer 20 is also printed, and the fourth unit register mark 24 exceeds the upper threshold value SU. can be detected. The reason why the fourth unit register mark 24 is easier to detect when the register mark base layer 20 is printed on the fourth unit register mark 24 portion and before and after the fourth unit register mark 24 is as described above. Furthermore, the fact that the third unit register mark 23 can be detected even in the mode in which the register mark base layer 20 is printed is as explained in the registration of the third unit ink 13 with respect to the second unit ink 12.

In the present invention, both the third unit register mark 23 and the fourth unit register mark 24 can be detected, and based on the information, the register of the fourth unit ink 14 can be adjusted with respect to the third unit ink 13. can. That is, regarding the registration of the transparent ink 14, registration cannot be achieved in the conventional technology in which the register mark base layer 20 is not printed, whereas in the present invention in which the register mark base layer 20 is printed, the register cannot be adjusted. can.

2(d) and 2(e), the light receiving amount signal 52 is simplified and expressed by a straight line, but the actual light receiving amount signal 52 contains noise, and even when each of the registration marks 21 to 24 passes, an ideal signal like that in FIG. 2(d) and 2(e) is not obtained. Therefore, the light receiving amount signal 52 is usually smoothed to reduce noise. Also, for the detection of each of the registration marks 21 to 24, there is no simple upper and lower threshold processing for the light receiving amount signal 52 as in FIG. 2(d) and 2(e), and threshold processing for the waveform (signal) by the first or second derivative may be used from the viewpoint of detecting a sudden and significant change in the light receiving amount signal 52 caused by each of the registration marks 21 to 24. Also, each of the registration marks 21 to 24 may be detected by a signal processing method other than the above, as long as it detects a sudden and significant change in the light receiving amount signal 52.

As described above, in the present invention, even when printing includes transparent ink, the automatic registration control device 50 can be used to align the transparent ink with the colored ink. This can significantly reduce the workload compared to when aligning by visual inspection.

In addition, in the present invention, since the registration marks 24 of the transparent ink 14 can be detected using visible light, there is no need to switch light sources, for example from visible light to light that includes ultraviolet light, when using the automatic register control device 50. This also reduces the workload. Furthermore, in cases where the automatic register control device 50 is equipped with an auto gain control function, there is no need to set the sensitivity of the sensor, and it can be used almost fully automatically, which also significantly reduces the workload.

Further, in the present invention, when the automatic register control device 50 detects the transparent ink 14, it is not necessary to add an additive to the transparent ink to make it easier for the sensor to read the transparent ink. Therefore, if an additive that emits light under ultraviolet light is used, for example, if it emits light under black light, or if it is irradiated with visible light that contains a large amount of ultraviolet light, the appearance of the color may differ from the intended color. , problems such as product specifications being restricted due to unintended appearance from the product specifications do not occur. Therefore, the product specifications are not limited and it is possible to support a wide range of designs including transparent ink.

Furthermore, in the present invention, the register mark base layer 20 is printed with the ink required for printing the image 2. Therefore, there is no need to add a new ink to facilitate detection of the transparent ink 14, i.e., no printing unit is added, and the effect is that transparent ink can be detected without increasing the process load. In addition, the register mark (third unit register mark 23) printed with the ink (third unit ink 13 in the above explanation) that prints the register mark base layer 20 can also be read without any problems. Therefore, the automatic register control device 50 can control the register for all inks, including the transparent ink 14.

In view of the objectives and effects of the present invention, the register mark base layer 20 does not need to overlap other register marks (21-23) (other than the transparent ink register mark 24) as long as it is printed so as to overlap at least a portion of the register mark 24 made with transparent ink 14. In this case, it is necessary that the register marks that are not printed so as to overlap a portion of the register mark base layer 20 can be read without the register mark base layer 20. For example, this is the state shown in FIG. 6(a) or FIG. 7(c) described below.

In the register mark group 29 according to the first embodiment, the register mark base layer 20 is printed on all the register marks (21 to 24) so as to overlap at least a part of each. Specifically, in FIG. 2(a) or FIG. 4(d) showing the register mark group 29, the register mark base layer 20 is printed only in approximately the lower half in each of the above figures, and is not printed in the upper half. Not yet. The register mark base layer 20 printed on the lower half is printed so as to overlap the lower half (which is a part) of each register mark (21 to 24) for all the register marks (21 to 24). ing.

With such a group of register marks 29, the automatic register control device sensor unit 51 of the automatic register control device 50 can select at the printing site whether to read the group of register marks 29 in the part where the register mark base layer 20 is printed (the lower half in each of the above figures) or in the part where the register mark base layer 20 is not printed (the upper half in each of the above figures). Therefore, while checking the detection status of the automatic register control device 50, it is easy to change from the part where the register mark base layer 20 is not printed to the part where it is printed (or vice versa). Regarding the readability of the transparent ink 14, whether it is better to apply the register mark base layer 20 depends on the type of original roll 10, the type and properties of the transparent ink 14, or the color of the ink selected for printing the register mark base layer 20 and the amount of the ink applied, so it is safer to be able to handle either.

Furthermore, if the register mark base layer 20 is printed only on a portion of each register mark (21-24) in this way, the portions of each register mark (21-24) where the register mark base layer 20 is not printed (the upper half in each of the above figures) will be printed with a single solid color of each ink (11-14). Therefore, the printing color of each ink in a single solid color state can also be confirmed in the register mark group 29 portion.

However, without being limited to the above, for example, in cases where it is clear that the application of the present invention is preferable, the register mark base layer 20 may be printed so as to overlap all portions of all register marks (21 to 24) in the register mark group 29 of the present invention, as shown in FIG. 5. In this case, the positional accuracy of the automatic register control device sensor unit 51 of the automatic register control device 50 in the width direction of the reading position is relaxed, meaning that the position of the automatic register control device sensor unit 51 in the width direction can be easily set.

Examples of the paper base material for the original fabric 10 of the printed matter 1 of the present invention include kraft paper, titanium paper, linter paper, resin-impregnated paper, thin paper, and Japanese paper. The fiber base material consists of inorganic fibers such as glass fiber, alumina fiber, silica fiber, and carbon fiber, and organic fibers of various synthetic resins such as polyester resin, acrylic resin, polyethylene resin, and polypropylene resin. Examples include fiber base materials such as fibers, and base materials such as composites thereof. Further, the fiber base material may be a nonwoven fabric or a woven fabric.
Examples of the base material include polyolefin resins such as polyethylene, polypropylene, olefin thermoplastic elastomers, and ionomers, acrylic resins such as polymethyl methacrylate and polybutyl methacrylate, and thermoplastic polyester resins such as polyethylene terephthalate and polybutylene terephthalate. , thermoplastic resins such as thermoplastic urethane resins, vinyl chloride resins, ABS resins (acrylonitrile-butadiene-styrene copolymers), styrene resins, thermosetting resins such as melamine resins, unsaturated polyester resins, two-component curable urethane resins, etc. Alternatively, an ionizing radiation-curable resin that is cured by ionizing radiation (ultraviolet light, electron beam, etc.) such as a radical polymerization type acrylate type or a cationic polymerization type epoxy type resin can be used. In addition, when the material of the base material is resin, it may be colored with a known coloring agent.
Further, the thickness of the original fabric 10 depends on the type of the original fabric 10, but is approximately 10 μm or more and 200 μm or less. If it is less than 10 μm or more than 200 μm, it is undesirable because it becomes difficult to carry out accurate printing in a printing machine, making it difficult to perform printing well. An example of the raw material 10 is titanium paper with a thickness of 80 μm.

The colored inks (first unit ink 11 to third unit ink 13) related to printed matter 1 of the present invention are obtained by dissolving (or dispersing) a known coloring agent (dye or pigment) in a solvent (or dispersion medium) together with a resin. You can get it. Examples of the coloring agent include inorganic pigments, organic pigments, metal powder pigments, pearlescent pigments, fluorescent pigments, and luminescent pigments. For example, inorganic pigments include carbon black, titanium white, zinc white, Bengara, navy blue, cadmium red, etc., and organic pigments include azo pigments, lake pigments, anthraquinone pigments, quinacridone pigments, phthalocyanine pigments, and isoindolinone pigments. , dioxazine pigments, etc.; metal powder pigments include aluminum powder, bronze powder, etc.; pearlescent pigments include titanium oxide-coated mica, bismuth oxide chloride, etc. These colorants may be used alone or in combination of two or more, or may be used together with fillers such as silica, extender pigments such as organic beads, neutralizing agents, surfactants, etc.

Resins used for colored inks (first unit ink 11 to third unit ink 13) include hydrophilic-treated polyester urethane resins, as well as polyester, polyacrylate, polyvinyl acetate, polybutadiene, polyvinyl chloride, and chlorinated resins. Polypropylene, polyethylene, polystyrene, polystyrene-acrylate copolymers, rosin derivatives, alcohol adducts of styrene-maleic anhydride copolymers, cellulose resins, and the like can also be used in combination. Specifically, for example, water-soluble synthetic resins include polyacrylamide-based resins, poly(meth)acrylic acid-based resins, polyethylene oxide-based resins, polyN-vinylpyrrolidone-based resins, water-soluble polyester-based resins, and water-soluble polyamide-based resins. Polynucleotides, polypeptides, polysaccharides, etc. can be used as water-soluble natural polymers such as resins, water-soluble amino resins, and water-soluble phenol resins. For example, natural rubber, synthetic rubber, polyvinyl acetate resin, (meth)acrylic resin, polyvinyl chloride resin, polyurethane-polyacrylic resin, etc., or mixtures of the above natural rubbers, etc. Resins can also be used. The above resins can be used alone or in combination of two or more. It is preferable to add a crosslinking agent, a polymerization initiator, or a polymerization accelerator to the above resin to improve coating film strength and durability, and among the above resins, acrylic resins are preferable.

The thickness of the colored inks (first unit ink 11 to third unit ink 13) is usually 0.1 μm or more and 50 μm or less, and in the case of gravure ink, for example, it is preferably 0.1 μm or more and 30 μm or less. If it exceeds 30 μm, it will take a long time to dry, reducing productivity, and blocking will become a concern due to poor shape stability of the ink after printing. If it is less than 0.1 μm, stable printing will be difficult, and there will be concerns about smearing, ink loss, and poor transfer.

The transparent ink 14 related to the printed matter 1 of the present invention may be one in which no coloring agent is added to the colored ink material. That is, as the transparent ink 14, in addition to hydrophilically treated polyester urethane resin, polyester, polyacrylate, polyvinyl acetate, polybutadiene, polyvinyl chloride, chlorinated polypropylene, polyethylene, polystyrene, polystyrene-acrylate copolymer, and rosin derivative are used. , alcohol adducts of styrene-maleic anhydride copolymers, cellulose resins, etc. can also be used in combination. Specifically, for example, water-soluble synthetic resins include polyacrylamide-based resins, poly(meth)acrylic acid-based resins, polyethylene oxide-based resins, polyN-vinylpyrrolidone-based resins, water-soluble polyester-based resins, and water-soluble polyamide-based resins. Polynucleotides, polypeptides, polysaccharides, etc. can be used as water-soluble natural polymers such as resins, water-soluble amino resins, and water-soluble phenol resins. For example, natural rubber, synthetic rubber, polyvinyl acetate resin, (meth)acrylic resin, polyvinyl chloride resin, polyurethane-polyacrylic resin, etc., or mixtures of the above natural rubbers, etc. Resins can also be used. The above resins can be used alone or in combination of two or more. It is preferable to add a crosslinking agent, a polymerization initiator, or a polymerization accelerator to the above resin to improve coating film strength and durability, and among the above resins, acrylic resins are preferable.

Alternatively, a thermosetting resin, which is a polymer that polymerizes when heated, may be used. Preferred thermosetting resins include melamine resin, urea resin, melamine-urea resin, guanamine resin, diallyl phthalate resin, polyester resin, phenol resin, epoxy resin, aminoalkyd resin, silicon resin, and polysiloxane resin.
Alternatively, the resin may be an energy-curable resin that is cured by ultraviolet light or electron beams. Preferred examples of the energy-curable resin include bifunctional (meth)acrylates such as ethylene glycol di(meth)acrylate, bisphenol A tetraethoxy diacrylate, bisphenol A tetrapropoxy diacrylate, and 1,6-hexanediol diacrylate, which are polymerizable monomers; and trifunctional or higher (meth)acrylates such as trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, and isocyanuric acid-modified tri(meth)acrylate. Among these, from the viewpoint of obtaining a design with a higher texture and more excellent surface characteristics, dipentaerythritol-based polymerizable monomers such as dipentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, and dipentaerythritol hexa(meth)acrylate are preferred, dipentaerythritol penta(meth)acrylate and dipentaerythritol hexa(meth)acrylate are more preferred, and dipentaerythritol penta(meth)acrylate and dipentaerythritol hexa(meth)acrylate are even more preferred. Examples of the polymerizable oligomer include urethane (meth)acrylate oligomer, epoxy (meth)acrylate oligomer, polyester (meth)acrylate oligomer, polyether (meth)acrylate oligomer, polycarbonate (meth)acrylate oligomer, acrylic (meth)acrylate oligomer, polycaprolactone urethane (meth)acrylate oligomer, and polycaprolactone diol urethane (meth)acrylate.

The thickness of the transparent ink 14 depends on the type of transparent ink 14, but is generally 0.1 μm or more and 50 μm or less. If it is less than 0.1 μm, stable printing becomes difficult, and there are concerns about blurring, ink loss, and poor transfer. It also becomes difficult to obtain the tactile unevenness effect. On the other hand, if it exceeds 50 μm, it takes a long time to dry, which reduces productivity, and there are concerns about a deterioration in the shape stability of the ink after printing and blocking, so this is not preferable.

As an example of the transparent ink 14, 60 parts by mass of an ionizing radiation-curable monomer, 0.6 parts by mass of reactive silicone, and 40 parts by mass of methyl ethyl ketone were stirred with a stirrer at 2000 rpm for 1 hour. An example of printing at 10 μm can be given.

Second Embodiment
A second embodiment of the present invention will be described below with reference to FIG. 6. The second embodiment differs from the first embodiment in the position where the register mark foundation layer 20 is printed and in the distribution of the amount of ink applied. That is, in the first embodiment, the register mark foundation layer 20 is printed so as to overlap at least a portion of each of the register marks (21 to 24) in the register mark group 29. In contrast, in the second embodiment, the amount of ink applied to the register mark foundation layer 20 in the register mark group 29 increases stepwise in the direction in which the register marks (21 to 24) are arranged (printing direction) until it reaches a predetermined amount, and then decreases stepwise from the predetermined amount. Here, the predetermined amount is the amount at which the amount of ink applied to the register mark foundation layer 20 is maximum in the direction in which the register marks (21 to 24) are arranged. In the example of FIG. 6A, the density of the register mark base layer 20 is printed so as to increase and decrease stepwise so as to overlap only a portion of the transparent ink register mark 24 made of the transparent ink 14.

Figure 6(c) is a cross-sectional view of the part in Figure 6(a) that includes the register mark base layer 20, that is, the cross-sectional view taken along line D-D in Figure 6(a). Figure 2(e) is a conceptual diagram showing the received light amount signal 52, the upper threshold SU in the threshold processing, and the lower threshold SL, which are obtained by the automatic register control device's fourth unit sensor unit 514, in the part along line D-D in Figure 2(a). For comparison, Figure 6(b) shows a cross-sectional view of the part in Figure 6(a) that does not include the register mark base layer 20, that is, the cross-sectional view taken along line C-C in Figure 6(a), and Figure 6(d) shows the received light amount signal 52, etc., obtained by the automatic register control device's fourth unit sensor unit 514, in the part along line C-C.

As shown in FIG. 6(c), the amount of ink applied to the register mark base layer 20 increases stepwise in the direction in which the register marks (21-24) are arranged (printing direction) before and after the transparent ink register mark 24 until it reaches a predetermined amount, and then decreases stepwise from that predetermined amount. The transparent ink register mark 24 is disposed near the predetermined amount of ink applied (maximum amount) in the direction in which the register marks (21-24) are arranged (printing direction). In other words, the transparent ink register mark 24 is printed overlapping the area where the amount of ink applied to the register mark base layer 20 is maximum.

Regarding FIG. 6(e) showing the amount of light received by the mark reading means (automatic register sensor section 51) in the second embodiment, FIG. ) and the different parts will be explained. Since the register mark base layer 20 is printed in the third unit 3U, the registration up to the second unit 2U is the same as in the first embodiment. The first embodiment and the second embodiment differ in the presence or absence of the register mark base layer 20 before and after the third unit register mark 23 in the third unit 3U.

That is, in the first embodiment, the register mark base layer 20 is printed before and after the third unit register mark 23, but in the second embodiment, the register mark base layer 20 is not printed. With regard to detecting the third unit register mark 23, the second embodiment in which the register mark base layer 20 printed with the same ink as the third unit register mark 23, the third unit ink 13, is not printed before or after the third unit register mark 23, is considered easier to detect and does not require any special explanation.

Next, detection of the fourth unit register mark 24 will be explained. As shown in FIG. 6(c), the amount of ink on the register mark base layer 20 increases as it approaches from the third unit register mark 23 to the fourth unit register mark 24, and after the fourth unit register mark 24, the fourth unit register mark 24 increases. The amount of ink decreases as the distance from the unit registration mark 24 increases. As mentioned above, since the amount of ink is considered to be approximately proportional to the amount of absorbed light, the received light amount signal 52 gradually increases from the third unit register mark 23 to the fourth unit register mark 24, as shown in FIG. 6(e). decreases to In the fourth unit register mark 24, the amount of light received increases significantly due to the luster of the transparent ink 14, as shown at a portion 524. After the fourth unit reference mark 24, the received light amount signal 52 gradually increases as the distance from the fourth unit reference mark 24 increases.

The amount of ink on the register mark base layer 20 changes in stages. As a result, in the portion where the received light amount signal 52 linearly gradually decreases or increases, since the change in the received light amount signal 52 is gradual, a gradual change in the amount of ink is erroneously detected as a registration mark. It never happens. To illustrate this conceptually, as shown on the left and right of the received light amount signal 524 portion at the fourth unit registration mark in FIG. 6(e), the received light amount signal 52 gradually decreases and then increases. , the upper threshold SU, and the lower threshold SL also appear to gradually decrease and increase. Considering the actual calculation processing of the automatic register control device 50, the above explanation may not be accurate, but it does not detect gradual changes in the received light amount signal 52, but detects only rapid changes, in other words, when viewed from a plane. This is an explanation of the fact that processing is performed to detect only clear contours at the above density.

In the second embodiment, it is possible to avoid erroneously detecting the outline of the starting part or the ending part of the register mark base layer 20 as a register mark. In the first embodiment, in order to avoid the above-mentioned erroneous detection, the starting part and the ending part of the register mark base layer 20 are arranged at a position sufficiently away from the register marks (21 to 24), and the starting part and It is preferable to set the register mark base layer 20 sufficiently long in the printing direction so that the end portion is outside the detection range of the automatic register control device sensor section 51. Alternatively, it is preferable to print the register mark base layer 20 all around the plate cylinder so that the beginning and end portions of the register mark base layer 20 do not exist. On the other hand, in the second embodiment, since it is not necessary to set the register mark base layer 20 sufficiently long in the printing direction, the load on creating the plate cylinder and the amount of ink consumed can be reduced. At the same time, the transparent ink registration mark 24 can be detected stably.

In the above example, the transparent ink register mark 24 was placed near where the ink application amount is the specified amount (maximum amount) in the direction in which the register marks (21-24) are arranged (printing direction). However, this is not limited to the above, and the transparent ink register mark 24 may be placed not near where the ink application amount is the specified amount (maximum amount), but for example near the middle where the ink application amount increases or decreases stepwise (near half the specified amount). If the light reception signal 52 in the automatic register control device fourth unit sensor part 514 increases significantly at the transparent ink register mark 24 due to the action of the register mark base layer 20, this meets the purpose of the present invention and detection is possible.

(Modification 1)
Hereinafter, a modification of the second embodiment will be described. In Modified Example 1, as shown in FIG. 7(a) and FIG. 7(b), which is a cross-sectional view taken along line EE of FIG. The amount of ink on the register mark base layer 20 gradually increases in the direction in which the register marks (21 to 24) are arranged (printing direction) until it reaches a predetermined amount. A predetermined amount of ink is maintained up to the 4th unit register mark 24 portion, and the amount of ink is increased in the direction in which the register marks (21 to 24) are arranged (printing direction) from the 4th unit register mark 24 portion to the downstream part thereof. is gradually decreasing.

In the first modification, in the first embodiment, the amount of ink at the start part of the register mark base layer 20 is increased stepwise to bring it closer to the first unit register mark 21, and the amount of ink at the end part of the register mark base layer 20 is increased stepwise. It can also be considered that the amount of ink is gradually reduced to approach the fourth unit register mark 24. In addition, in Modification 1, in the upstream part of the first unit register mark 21 and the downstream part of the fourth unit register mark 24, the amount of ink is gradually increased or The decreasing part is located. However, the present invention is not limited to this, and a portion where the amount of ink is gradually increased or decreased may be placed at a certain distance from both register marks (21, 24).

Also in the first modification, it is possible to avoid erroneously detecting the outline of the start portion or the end portion of the register mark base layer 20 as a register mark. Therefore, compared to the first embodiment, the length of the register mark base layer 20 in the printing direction can be made shorter, so that the load on creating the plate cylinder and the amount of ink consumed can be reduced.

In the first embodiment, as described above, the start and end portions of the registration mark base layer 20 are set far enough away in the printing direction from the registration marks (21-24) so that they are not mistakenly detected as registration marks.

(Modification 2)
Next, modification 2 will be explained. In Modified Example 2, as shown in FIG. 7(c) and FIG. 7(d), which is a cross-sectional view taken along the line FF, there are There is no register mark base layer 20. Then, from the second unit register mark 22 part to the third unit register mark 23 part, the amount of ink in the register mark base layer 20 increases stepwise in the direction in which the register marks (21 to 24) are arranged (printing direction). From the third unit register mark 23 part to the fourth unit register mark 24 part, the predetermined ink volume is maintained, and from the fourth unit register mark 24 part to the downstream part, the ink volume increases. The registration marks (21 to 24) are gradually decreased in the direction in which they are arranged (printing direction).

In the second modification, too, it is possible to prevent the outlines of the start and end of the registration mark base layer 20 from being erroneously detected as a registration mark. Compared to the first modification, the length of the registration mark base layer 20 in the printing direction can be further shortened, which reduces the load on the plate cylinder and the amount of ink consumed. However, compared to the second embodiment, the length of the registration mark base layer 20 in the printing direction is longer. What should be exemplified through the first embodiment, the second embodiment, the first modification, and the second modification is that the registration mark base layer 20 is printed so as to overlap at least a portion of the transparent ink registration mark 24, and that the registration mark base layer 20 is printed so as to prevent the start and end of the registration mark base layer 20 from being erroneously detected as a registration mark.

As described in the above embodiments, the printed matter according to the present invention is preferably printed by gravure printing. With gravure printing, it is possible to directly print a special color ink on a pattern by adjusting the ink, rather than using a combination of halftone dots of basic colors, and it is also possible to change the amount of ink, making it possible to print richly. This is because it is possible to express gradations, that is, it is possible to print patterns with high design quality. Furthermore, although the present invention is based on the use of transparent ink, this is because designs using transparent ink are usually printed by gravure printing.

[Cosmetic sheet]
The printed matter 1 according to the present invention is used, for example, as a decorative sheet. That is, the decorative sheet according to the present invention is a decorative sheet containing the printed matter 1 according to the present invention. For example, in order to improve durability and workability, the printed matter 1 according to the present invention is laminated with another base material to form a decorative sheet. Alternatively, from the printed matter 1 according to the present invention, the outer part 3 on which no picture is printed may be removed by slitting, etc., and only the picture part 2 on which the picture is printed may be used as a decorative sheet. Of course, the above lamination and the above slits may be combined to form a decorative sheet.

The decorative sheet uses the printed matter according to the present invention, and therefore there is no need to add additives to the transparent ink to improve the detectability of the registration marks, and therefore the product specifications of the decorative sheet are not restricted by additives. Furthermore, there is no need to change the light source and light receiving sensor in the automatic register control device to accommodate additives, and the workload does not increase. Furthermore, the register mark base layer 20 for improving the detectability of the transparent ink 14 is printed with the inks (11-13) used to print the image, so there is no need to add another ink or a unit for printing it to improve the detectability of the transparent ink 14. Therefore, there is almost no increase in the process workload.

In other words, despite the limitations of the product specifications mentioned above and the increase in the workload and process load mentioned above, it is possible to match the register of the transparent ink with the register of the pattern printed with colored ink, and to eliminate misalignment between the two. It is possible to provide a decorative sheet that is free from scratches and has a high design quality.

[Method of manufacturing printed matter]
Next, a method for manufacturing the printed matter 1 of the present invention will be described. The method for manufacturing the printed matter 1 of the present invention is a method for manufacturing the printed matter 1 using two or more different inks (11 to 14) including at least one or more transparent inks 14. The printed matter 1 includes, in the width direction, a picture portion 2 on which a picture is printed and a picture outer portion 3 on which no picture is printed, the picture portion 2 is printed with a picture using all of the two or more different inks (11 to 14), the picture outer portion 3 is printed with two or more register marks (21 to 24) and a register mark base layer 20, the two or more register marks (21 to 24) are printed at two or more different positions for each of the two or more different inks (11 to 14), and the register mark base layer 20 is printed with an ink (11 to 13) different from the transparent ink 14 among the two or more different inks (11 to 14) so as to overlap at least a part of the register mark 24 printed with the transparent ink 14.

In the printing press 40 that prints the printed matter 1, the mutual register of two or more different inks (11 to 14) in the transport direction is controlled by an automatic register control device 50. The automatic register control device 50 includes a conveying distance detecting means for detecting the conveying distance of the printed matter 1 in the printing press 40, and a mark reading means (automatic register controlling device sensor section 51) for optically reading the register marks (21 to 24). , control means, and path length adjustment means 46. The control means calculates the amount of misregistration in the conveyance direction from the signals from the conveyance distance detection means and the mark reading means (automatic register control device sensor section 51), and adjusts the movement of the path length adjustment means 46 from the amount of misregistration. The device calculates the amount of movement and outputs a signal corresponding to the amount of movement to the path length adjustment means 46, and the path length adjustment means 46 adjusts the intervals between the register marks (21 to 24) to predetermined intervals based on the signal. The register in the conveyance direction is controlled by changing the length of the conveyance path so that.
Note that the details of the operation of the automatic register control device 50 have been explained in the description of the printed matter 1 above, and will therefore be omitted here.

In the manufacturing method of printed matter 1 above, there is no need to add additives to the transparent ink to improve the detectability of registration marks, so product specifications are limited due to additives, etc. There is no. Furthermore, there is no need to change the light source and light receiving sensor in the automatic register control device in order to accommodate additives, and the workload does not increase. Further, since the register mark base layer 20 for improving the detectability of the transparent ink 14 is printed with the ink (11 to 13) for printing the pattern, another ink is used to improve the detectability of the transparent ink 14. , and no need to add an additional unit to print it. Therefore, the process load hardly increases.

In other words, despite the limitations of the product specifications mentioned above and the increase in the workload and process load mentioned above, it is possible to match the register of the transparent ink with the register of the pattern printed with colored ink, and to eliminate misalignment between the two. It is possible to provide a method for producing a printed matter 1 that is free from defects and has a high design quality.

[Method of manufacturing decorative sheet]
Next, a method for producing a decorative sheet according to the present invention will be described. The method for producing a decorative sheet according to the present invention is a method for producing a decorative sheet that includes the above-mentioned method for producing a printed matter. As an example, a case will be described in which the decorative sheet according to the present invention is a laminate of the printed matter 1 of the present invention and a vinyl chloride film as a substrate. The decorative sheet according to the present invention can be produced by thermally laminating a vinyl chloride film, via an adhesive, to the surface (original surface) opposite to the surface on which the pattern of the printed matter 1 produced by the above-mentioned method for producing a printed matter.

The printed matter 1 and decorative sheet of the present invention use transparent ink, and the design pattern formed by the transparent ink is registered with the design pattern formed by the colored ink. High design quality is achieved through the tactile unevenness of the transparent ink, the visual unevenness of the design pattern formed by the colored ink and the unevenness of the transparent ink that are registered with each other, and gloss differences.

Therefore, it is easier to obtain the effect of the transparent ink when the transparent ink 14 is present on the outermost surface, so it is not a good idea to thermally laminate a vinyl chloride film with an adhesive to the side on which the pattern of the printed matter 1 is printed. Hateful. However, if the printed matter 1 is manufactured by the manufacturing method according to the present invention, a decorative sheet is manufactured by thermally laminating a vinyl chloride film with an adhesive to the side of the printed matter 1 on which the pattern is printed. It goes without saying that the method of manufacturing is also included in the present invention.

Furthermore, the slitting of the printed matter 1 is as described above, but even if the printed matter 1 is slit and then made into a decorative sheet by the above-mentioned lamination, or the decorative sheet after the above-described lamination is slit. , included in the decorative sheet manufacturing method of the present invention. Further, in the method for manufacturing the decorative sheet described above, the same effects as in the method for manufacturing the printed matter 1 can be obtained.

Examples and Comparative Examples
Examples and comparative examples of the present invention will be described below. Eight different types of originals (originals A to H) were used to create printed matter similar to the present invention, using three different colored inks (first unit ink to third unit ink) and one transparent ink. In creating the printed matter, the three types of inks (first unit ink to third unit ink) and the amount of ink build-up were changed to 20%, 40%, and 60% in relation to the build-up amount when printing the register marks with the inks, assuming that the build-up amount is 100%, and seven types of register mark original layers with different combinations of ink type and its build-up amount were printed. In addition, as a conventional example, a printed matter was also created in which the register mark original layer was not printed.

For the original rolls A to H, titanium paper with a thickness of 80 μm (product numbers (in the order of A to H) manufactured by KJ Specialty Paper Co., Ltd.: KSH-801P, PM-62P, PM-67P, PM-28P, PM-42P, PM-52P, KW-801P, PM-77P) was used.
The first to third unit inks used were ODE PF manufactured by DIC Graphics Corporation.
The transparent ink used was obtained by stirring 60 parts by mass of an ionizing radiation curable monomer (Aronix M400, manufactured by Toa Chemical Industry Co., Ltd.), 0.6 parts by mass of a reactive silicone (X-22-164B, manufactured by Shin-Etsu Chemical Co., Ltd.), and 40 parts by mass of methyl ethyl ketone (Maruzen Petrochemical Co., Ltd.) at 2000 rpm for 1 hour using a stirrer (Process Homogenizer PH91, manufactured by SMT Corporation).

For each of the above 64 types, which is a combination of 8 types of original fabric and 8 types of register mark base layer (7 types + none), the part where only the register mark base layer is printed, the register mark base layer and the transparent ink register mark The difference (V) between the output voltages (V) of the sensor section of the automatic register control device in the area where the images were printed in an overlapping manner was calculated. That is, it is the signal variation amount (V) due to the transparent ink register mark. As an automatic register control device, MR5500 manufactured by Nireco Co., Ltd. was used. The results are shown in Table 1.

In Table 1, if the output voltage difference is 1.7V or more, it can be determined that the significant signal in the transparent ink register mark portion can be separated from noise, i.e., the transparent ink register mark can be detected. A conceptual explanation is that in the conceptual diagram of the change in the amount of light received by the sensor unit of the automatic register control device in Figure 2(e) and other figures, the upper threshold value is +1.7V for the received light amount signal, and the lower threshold value is -1.7V for the received light amount signal (V).

Referring to Table 1, it can be seen that even when the printing conditions for the register mark base layer are the same, there is a considerable difference in the amount of signal fluctuation (V) due to the transparent ink register mark depending on the type of original roll, i.e., the color and surface condition of the original roll, etc. In other words, the numerical value changes greatly in the vertical direction of Table 1. From this, it can be seen that the original roll is also greatly influenced by the part where the register mark base layer is printed. It can also be seen that even when the same original roll is used, there is a difference in the amount of signal fluctuation (V) due to the transparent ink register mark depending on the printing conditions for the register mark base layer, in other words, the numerical value changes horizontally in Table 1.

In the conventional example in which the register mark base layer is not printed, out of eight types of raw fabrics, four types have voltages exceeding 1.7V, and four types have voltages below 1.7V. In other words, the voltage was less than 1.7V in half of the types of fabrics according to Examples and Comparative Examples, which suggests that some kind of improvement is necessary in reading the register marks of transparent ink. On the other hand, among the seven types of register mark underlayers according to the present invention, in printing with a 40% fill amount using the first unit ink and printing with a fill amount 20% using the third unit ink, all eight types of base layers It exceeds 1.7V. From this, it can be understood that the present invention is useful for reading transparent ink register marks, and it also suggests that the register mark base layer can be printed under the same conditions on a wide variety of substrate types. It was confirmed that the invention has high versatility.

The printed matter, decorative sheet, printed matter manufacturing method, and decorative sheet manufacturing method according to the present invention have been described above while showing embodiments. However, the present invention is not limited to the above embodiments. The above-mentioned embodiments are illustrative, and any embodiments that have substantially the same configuration and achieve similar effects to the technical idea stated in the claims of the present invention are not covered by the present invention in any case. within the technical scope of the invention.

The printed matter and the decorative sheet according to the present invention have high designability and performance because the pattern formed by the transparent ink and the pattern formed by the colored ink are in good register. Such printed materials and decorative sheets can be suitably used as interior materials such as wallpaper, interiors of houses and buildings, interiors of transportation equipment such as automobiles and railway vehicles, and the like.

1 Printed matter 2 Pattern, pattern area 3 Outside the pattern 10 Original fabric 11 First unit ink 12 Second unit ink 13 Third unit ink 14 Fourth unit ink, transparent ink 20 Register mark base layer 21 First unit register mark 22 Second Unit register mark 23 Third unit register mark 24 Fourth unit register mark, transparent ink register mark 29 Register mark group 40 Printing machine 41 Unwinding section 42 Winding section 43 Plate cylinder 431 Plate cylinder of the first unit 432 Plate cylinder of the second unit Plate cylinder 433 Plate cylinder of the third unit 434 Plate cylinder of the fourth unit 44 Impression cylinder 45 Drying unit 46 Path length adjustment means 461 Path length adjustment means between 1st and 2nd units 462 Path length adjustment means between 2nd and 3rd units 463 3rd-4th unit path length adjustment means 50 automatic register control device 51 automatic register control device sensor section 512 automatic register control device 2nd unit sensor section 513 automatic register control device 3rd unit sensor section 514 automatic register control device 4th unit Sensor unit 52 Received light amount signal 521 Received light amount signal at the first unit registration mark 522 Received light amount signal at the second unit registration mark 523 Received light amount signal at the third unit registration mark 524 Received light amount signal at the fourth unit registration mark SU Upper threshold SL lower threshold

Claims (14)

A printed matter using two or more different inks, including at least one transparent ink,
The printed material includes, in the width direction, a pattern portion on which a pattern is printed and a pattern outside on which the pattern is not printed,
The pattern using all the inks of the two or more different inks is printed on the pattern part,
Two or more register marks and a register mark base layer are printed on the outside of the pattern,
The two or more registration marks are printed at two or more different positions for each of the two or more different inks,
The register mark base layer is printed with an ink different from the transparent ink among the two or more different inks so as to overlap at least a portion of the register mark printed with the transparent ink ,
The two or more register marks are printed over a portion that overlaps with the base layer of the register mark and a portion that does not overlap . A printed matter using two or more different inks including at least one transparent ink,
The printed matter includes, in a width direction, a pattern portion on which a pattern is printed and an outer pattern portion on which the pattern is not printed,
the pattern portion is printed with the pattern using all of the two or more different inks,
Two or more register marks and a register mark base layer are printed on the outside of the pattern,
the two or more register marks are printed at two or more different positions for each of the two or more different inks;
the register mark base layer is printed with one ink of the two or more different inks that is different from the transparent ink so as to overlap at least a portion of the register mark printed with the transparent ink ;
one of the two or more register marks is printed with the one ink;
The register mark printed with the one ink and the register mark base layer are printed continuously with no gaps in a plan view . 3. The printed matter according to claim 1, wherein the amount of ink applied to the register mark base layer is smaller than the amount of ink applied to the register mark printed with the ink used to print the register mark base layer. The printed matter according to any one of claims 1 to 3, wherein the registration mark base layer is printed so as to overlap at least a portion of each of the two or more registration marks. The printed matter according to any one of claims 1 to 4, wherein the amount of ink applied to the registration mark base layer increases stepwise in the direction in which the two or more registration marks are arranged to a predetermined amount, and then decreases stepwise from the predetermined amount. The printed matter according to any one of claims 1 to 5, wherein the printed matter is printed by gravure printing. A decorative sheet comprising the printed matter according to any one of claims 1 to 6. A method for producing a printed matter using two or more different inks including at least one transparent ink, comprising the steps of:
The printed matter includes, in a width direction, a pattern portion on which a pattern is printed and an outer pattern portion on which the pattern is not printed,
the pattern portion is printed with the pattern using all of the two or more different inks,
Two or more register marks and a register mark base layer are printed on the outside of the pattern,
the two or more register marks are printed at two or more different positions for each of the two or more different inks;
the register mark base layer is printed with an ink different from the transparent ink among the two or more different inks so as to overlap at least a portion of the register mark printed with the transparent ink ;
the two or more register marks are printed on the register mark base layer over both overlapping and non-overlapping portions thereof ;
In the printing machine for printing the printed matter, the mutual registration of the two or more different inks in the transport direction is controlled by an automatic register control device,
The automatic register control device includes a conveying distance detection means for detecting a conveying distance of the printed matter in the printing press, a mark reading means for optically reading the register marks, a control means, and a path length adjustment means,
the control means calculates an amount of misregistration in the conveying direction from signals from the conveying distance detection means and the mark reading means, calculates an amount of movement of the path length adjustment means from the amount of misregistration, and outputs a signal corresponding to the amount of movement to the path length adjustment means,
The path length adjustment means controls the register in the transport direction by changing the length of the transport path so that the intervals between the registration marks become predetermined intervals. A method for producing a printed matter using two or more different inks including at least one transparent ink, comprising the steps of:
The printed matter includes, in a width direction, a pattern portion on which a pattern is printed and an outer pattern portion on which the pattern is not printed,
the pattern portion is printed with the pattern using all of the two or more different inks,
Two or more register marks and a register mark base layer are printed on the outside of the pattern,
the two or more register marks are printed at two or more different positions for each of the two or more different inks;
the register mark base layer is printed with one ink of the two or more different inks that is different from the transparent ink so as to overlap at least a portion of the register mark printed with the transparent ink ;
one of the two or more register marks is printed with the one ink;
the register mark printed with the one ink and the register mark base layer are printed continuously with no gaps in a plan view ,
In the printing machine for printing the printed matter, the mutual registration of the two or more different inks in the transport direction is controlled by an automatic register control device,
The automatic register control device includes a conveying distance detection means for detecting a conveying distance of the printed matter in the printing press, a mark reading means for optically reading the register marks, a control means, and a path length adjustment means,
the control means calculates an amount of misregistration in the conveying direction from signals from the conveying distance detection means and the mark reading means, calculates an amount of movement of the path length adjustment means from the amount of misregistration, and outputs a signal corresponding to the amount of movement to the path length adjustment means,
The path length adjustment means controls the register in the transport direction by changing the length of the transport path so that the intervals between the registration marks become predetermined intervals. The method for manufacturing a printed matter according to claim 8 or claim 9, wherein the amount of ink applied to the register mark base layer is less than the amount of ink applied to the register mark printed with the ink used to print the register mark base layer. The method for manufacturing a printed matter according to any one of claims 8 to 10, wherein the register mark base layer is printed on all of the two or more register marks so as to overlap at least a part of each. . The method for manufacturing a printed matter according to any one of claims 8 to 11, wherein the amount of ink applied to the register mark base layer increases stepwise in the direction in which the two or more register marks are arranged to a predetermined amount, and then decreases stepwise from the predetermined amount. The method for producing printed matter according to any one of claims 8 to 12, wherein the printing machine is a gravure printing machine. A method for producing a decorative sheet, comprising the method for producing a printed matter according to any one of claims 8 to 13.