JP3184663B2 - Print medium, ink jet dyeing method and ink jet recording apparatus using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates primarily, ink, ink solid ink was dissolved state, the print medium a toner obtained by dissolving powder can be supported (hereinafter, "the transport base cloth media bodies"
Also called. ) Is applied to an ink printing method using the same (hereinafter also referred to as an “ink-jet dyeing method”), and further to an ink recording apparatus such as a copying machine, a facsimile or other recording device, a communication device, an office device, a multifunction device, a printer, etc. It relates to a possible device invention. In particular, the present invention relates to a method and an apparatus for ink-jet printing on a cut sheet-like base fabric using an ink-jet recording unit.

[0002]

2. Description of the Related Art In recent years, printing apparatuses using ink-jet technology have been put to practical use, and high-definition printed fabrics have been produced in a simple process. However, all of them are industrial printing apparatuses and are easy for users. It is practically difficult to perform high-quality printing as desired.

As an invention relating to such an ink-jet printing method, Yoshida et al. Disclosed in JP-A-61-55277 a compound which is substantially non-dying with respect to a dye to be dyed on a fabric material. 0.1-50% by weight
The disclosed ink-jet dyeing fabric and the ink-jet dyeing method using the same make it possible to prevent bleeding in ink-jet printing, but in any of the embodiments, consideration is given to the initial transportability of a general-purpose ink-jet printer. And its application is almost limited to the field of industrial printing.

As an invention by the same applicant as the present invention, Koike et al. Applied a recording liquid containing a water-soluble dye to fabrics by an ink jet system disclosed in Japanese Patent Application Laid-Open No. 62-53492, and then dyed as necessary. In the printing method to be treated, the above-mentioned cloths have a viscosity at 25 ° C. of 1000 cp.
The disclosure of the above-described printing method in which the recording liquid receiving layer is formed enables ink to be received in the recording liquid receiving layer having fluidity, thereby preventing bleeding and obtaining a high-quality inkjet printed cloth. In that embodiment 100% cotton
% Of the broad cloth is immersed in a recording liquid receiving layer liquid of 2200 cp, then lightly squeezed to remove the excess receiving layer liquid, and superimposed on a commercially available report paper to make it easy to mount on a printer. Attach it to the inkjet printer, print on the fabric cotton, then remove it from the printer, iron it and fix it, then remove the receiving layer liquid with a neutral detergent to obtain the fabric print by the inkjet printer I have. In another embodiment, a 15,000 cp recording liquid receiving layer agent was prepared as a 50% aqueous solution, applied to a shirt cloth of 65% cotton and 35% hemp with a bar coater, dried with hot air at 80 ° C. for 1 hour, and printed. This is printed using an ink jet printer, dyed with an iron, and washed with a neutral detergent to obtain an ink jet printed cloth. The ink-jet printing cloth prepared according to the above-described embodiment sufficiently satisfies the resolution of a straight line at 1.5 mm intervals, and further obtains a sufficient density without blurring or bleeding. It can be applied not only to simple printing methods but also to hobby print printing in ordinary households. That is, non-industrial ink jet printing can be performed by using a recording liquid receiving layer liquid, a cloth, an ink jet printer, a dryer or a commercially available plain paper, an iron, and a commercially available detergent. Among them, the recording liquid and the recording liquid receiving liquid suitable for the fabric are not widely available, and therefore, those sold as appropriate by an inkjet printer maker or the like may be purchased.

Also disclosed are methods other than ink jet recording, for example, a method of performing color printing using a print gokko (manufactured by Riso Kagaku Kogyo Co., Ltd.), which is widely used as a simple printing machine, followed by heat treatment with an iron. ing. In fabric printing using such a simple printing machine, there are few restrictions on the size and shape of the base fabric itself, but the area that can be printed at one time is small in terms of uniform printing pressure, and printing in a wide area is performed multiple times. In practice, it is difficult to adjust the registration for each print, and it is difficult to perform subtle color tone changes and high-definition expressions.

[0006]

A main object of the present invention is to provide a simple printing method and apparatus which can be applied even in a non-industrial field. Improving the initial automatic transport to enable printing and printing, and improving the properties of the cut sheet transport media itself to enable automatic feeding and disturbing the recording conditions. To provide a medium.

As the background, the most promising of the above-mentioned conventional simple printing methods is an ink-jet printing method using an ink-jet printer. With the rapid progress of the ink-jet technology in recent years, paper and the like have been used by the ink-jet technology. In the field of so-called ink jet recording apparatuses, which are capable of recording color image data transferred from a host device or the like on a cut sheet-shaped recording medium with high definition, small-sized and low-priced color ink jet recording apparatuses have become widespread. It is. However, with the configuration disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 61-55277, it is becoming difficult to directly apply it to an ink jet printer that has evolved in recent years. That is, in the first embodiment in the above-mentioned publication, contamination of the conveying means of the ink jet printer with the recording liquid receiving layer liquid having a high viscosity but fluidity and improvement of the mounting property and the conveying property of the printing cloth were evaluated by using a commercially available report paper. In the second embodiment, the recording liquid receiving layer liquid having a higher viscosity is applied and dried from the recording surface side, and is mounted on the ink jet printer without a base sheet in the second embodiment. However, it is difficult to obtain sufficient transportability for automatically transporting high-definition prints utilizing an inkjet printer with higher resolution and higher definition in recent years. In addition, the ink jet printer used in the above-described embodiment is one in which a recording medium is manually mounted on a cylindrical platen which is a main transport means, and as described above, a cloth in which only a base sheet is stacked, or a cloth itself. Although it was possible to attach the ink jet printer to the transfer means, it is difficult to mount the ink jet printer on the transfer means as it is.

Accordingly, the present invention specifically provides a simple printing method and apparatus utilizing an ink-jet technique, and more particularly, a simple ink-jet printing which can use an ink-jet printer which can be automatically mounted on a conveying means. It is an object of the present invention to provide a method and an ink jet recording (printing) apparatus capable of automatically recording a pretreated base cloth for receiving a recording liquid on a conveying means, and a cut sheet cloth recording medium used therefor.

Another object of the present invention is to make it possible to apply the high-definition color expression by the ink-jet simple printing method using the ink-jet technology not only for industrial use but also for a wide range of households in the hobby field. .

[0010]

Print medium of the SUMMARY OF THE INVENTION The present invention, the base fabric itself
Treated with a stiffening agent, Clark stiffness is 10 or more and 40
It is characterized in that less than or equal to zero. Inkjet Senshokukata method of the present invention, the print medium, and stained with ink using an ink jet recording apparatus, it is characterized in that to obtain a dyed fabric. The ink jet recording apparatus of the present invention comprises: means for conveying the print medium; ink jet recording means for applying ink droplets to the print medium conveyed by the conveyance means; and heating means for heating the print medium. It is a feature. The present invention encompasses a transport base fabric medium obtained by treating a base fabric itself with a stiffening agent and having at least a portion having a stiffness of 10 or more and 400 or less at a transport tip. Even when the cloth medium is a cut sheet-shaped or roll-shaped base material, automatic feeding at the start of printing can be made stable and reliable, and a recorded image can be made good.

As a specific example , the base fabric itself is subjected to ink-jet printing on a cut sheet recording medium having a Clark stiffness of 10 or more and 400 or less obtained by treating with a stiffening agent using an ink-jet recording apparatus. What is necessary is just to obtain a printing cloth.

[0012] A transporting base medium as a reference example of the present invention comprises:
This is a cut sheet-like transport base medium with a Clark stiffness of 10 or more and 400 or less, in which a base cloth is integrated over the entire surface on one side of the transfer base material via a dye absorbing adhesive layer. Regardless of the type of ink ejected by the head, it is possible to ensure stable transportability for printing while preventing printing defects due to excessive ink. In particular, by adopting a configuration in which the horizontal or vertical direction of the texture of the base cloth is aligned in the same direction as the transport direction of the transport base material, more stable transportability can be guaranteed.

[0013] By making a feeding member, which is driven by the apparatus and conveys the recording medium, act on the conveying base material, not only manual feeding but also automatic cut sheet feeding (ASF) can be performed. Can also respond. In particular, in an automatic feeding system such as a configuration that enhances the separation effect in addition to the separation sheet feeding means, the friction condition may be complicated. In this case, the cut sheet having a Clark stiffness of 25 to 300 is used. A more stable supply can be achieved by using the base cloth medium for shape transport.

Means for transporting the recording apparatus, wherein the transport means can load and store the cut sheet-like transport base cloth medium with the base cloth on the lower side and the transfer base material on the upper side; A U-turn conveyance path for reversing and discharging the separated and conveyed cut sheet-like conveyance base medium, and disposing the inkjet recording means in an area facing the base cloth in a conveyance path after the reversal area. With this configuration, it is possible to achieve high-definition color expression by a simple printing method without any inconvenience.

In any case, the present invention finds a technical problem from a new point of view, realizes a stable initial conveyance of the base cloth medium for conveyance, particularly, a stable overall conveyance of cut sheets, and is a simple method using ink jet technology. We can provide a printing method and apparatus and a cut sheet-shaped cloth recording medium used for it, and apply the high-definition color expression by the ink-jet simple printing method applying the ink-jet technology not only to industrial use but also to the general household hobby field. Made it possible. A further summary of the invention may be had from the following examples.

[0016]

REFERENCE EXAMPLE FIG . 1 shows a main structure of a cut sheet recording medium conveying means, an ink jet recording means and a cut sheet cloth recording medium in an ink jet printing (recording) apparatus according to a reference example of the present invention. Show. FIG. 3 shows the present invention.
The block diagram of the inkjet printing method in a reference example is shown. FIGS. 1 and 2 show the ink-jet printing method of this reference example .
Briefly described with reference to No. 3 , a base cloth which has been previously subjected to a pretreatment (ink dyeing control processing) suitable for an inkjet ink and a base cloth has ink (dyeing liquid) absorptive on the surface layer and is easy to peel off. A transport roller pair (transport drive roller 703 and transport driven roller 704) as a transport means of the recording medium in the ink jet textile printing apparatus is applied to a cut sheet-like cloth recording medium 707 attached to plain paper (base paper) provided with an adhesive layer.
Is set upstream of the transport direction. Preparation of inkjet printing (recording) (recovery processing of the inkjet head, setting of image data, etc.) is performed, and when the printing process is started, first, the transport driving roller 703 and the transport driven roller 704 driven by the transport driving roller 703 start rotating. Transport drive roller 7
03 is pulled into the press-contact portion of the rotating conveying roller pair, whereby the cut sheet-like cloth recording medium
7 is automatically mounted on the transport means. At this time, the cut sheet-shaped cloth recording medium 70 in contact with the transport drive roller 703
The surface of No. 7 is configured to be the surface of the lower side 601 similar to the plain paper usually used frequently in an ink jet recording (textile) apparatus, so that stable conveyance can be performed.

Further, the plain paper 601 of the cut sheet-shaped recording medium which is transported and driven, and the base fabric 602 which is the recording (printing) surface and which is pressed and transported by the transport driven roller are adhered by the ink absorbing adhesive layer 603. Since it is matched, it is possible to obtain the transportability that enables high-definition recording of ink jet recording by stably transporting the base paper by the transport driving roller. In synchronization with the conveyance of the cut sheet-shaped cloth recording medium, the ink jet recording unit provided on the conveyance path operates to perform recording (printing) according to the image data on the base cloth of the cut sheet-shaped cloth recording medium. Will be After recording is completed, ink jet recording (printing) is performed by transport means.
After naturally drying the printed cut sheet-shaped cloth recording medium discharged from the device, apply a fixing process by heating etc. as necessary, remove the backing paper, and wash the ink-jet printed base fabric. And air-drying again to obtain a cut sheet-shaped printing cloth.

[0018] described in detail the structure of the following present embodiment.

(Cut Sheet Fabric Recording Medium) The base fabric 602 in this embodiment is a fabric made of 100% cotton. In this reference example , when cutting and processing a 100-cotton fabric into a cut sheet, the transportability when contacting the transport driven roller is further stabilized, and the texture after printing (discrimination between horizontal and vertical) is easy. In order to improve the economy of the number of sheets taken from the raw material and to improve the economical efficiency, the shape of the cutout sheet and the cut sheet are substantially matched to each other.

First, the dyeing control processing of the base cloth is performed by treating a processing solution A (100 parts by weight of urea, 30 parts by weight of sodium hydrogen carbonate, sodium metanitrobenzenesulfonate) adjusted according to the base cloth 602 and the ink jet ink (ink formulation B). (10 parts by weight and 860 parts by weight of water), the base fabric was treated with a 100-mesh, solid-pattern screen using a Zimmer-type printing machine, and dried at 100 ° C. for 2 minutes. As ink formulation B, (CI Reactive Blue 49 10 parts by weight, diethylene glycol 25
After stirring for 2 hours, the mixture was filtered and used. Next, an adhesive layer is provided on the plain paper 601 using the processing liquid C. Depending on the thickness of the base fabric (ink receiving capacity) and the amount of ink applied for ink-jet printing (recording), it absorbs ink that has oozed out without being absorbed by the base fabric and spreads unwanted ink in the base fabric. It is preferable that the pressure-sensitive adhesive layer 603 has excellent ink absorbability so that the ink can be prevented. As the treatment liquid C, a 20% aqueous solution of polyvinyl alcohol was used, and was uniformly applied on plain paper by a doctor knife coater. Lamination of the base fabric after dyeing control processing and plain paper with an adhesive layer,
The two rubber rollers were heated to 80 ° C. and pressed.

Then, cutting is performed using a slit cutter in accordance with the direction of the cloth. However, if the direction of the texture and the angle at which the sheet is cut into a cut sheet can be determined at a constant angle, the angle may be inclined at a predetermined angle, for example, 45 degrees with respect to the texture, depending on the material and use of the base fabric. . In this reference example ,
Simultaneously with or before or after the cutting, a cut 604 is placed in plain paper serving as a base sheet to facilitate peeling after printing. In order to bring about the same effect, the adhesive layer 603 is not provided on the entire surface, paying attention not to impair the transportability, and a non-adhered portion is provided at the rear end or a non-adhered portion is provided along the transport direction. May be equal.

In this reference example , the transportability was tested by adjusting the Clark stiffness by changing the basis weight of the base paper and the papermaking direction for a base cloth having a surface of 100%. When a conveyance test was performed using a cut sheet-shaped cloth recording medium having a Clark stiffness of 8 obtained by laminating lightweight paper having a basis weight of 20 gr / m ² or less as a base sheet in the direction of the eyes having a small stiffness, skew and wrinkles were found. The frequency of occurrence is high, and the frequency of occurrence of defects related to the transportability is 48/50 overall, which is judged to be impractical. On the other hand, in the case of a cut sheet-like cloth recording medium having a Clark stiffness of 12 obtained by laminating the above lightweight paper in the longitudinal direction having a high rigidity, the transport failure is sharply reduced to 10/50 and the degree of the failure itself is slightly skewed. There were no fatal defects such as wrinkles during transportation. The Clark stiffness of the cut-sheet-like cloth recording medium in the cross-grain direction and the vertical-grain direction prepared using lightweight paper having a basis weight of 38 gr / m ² was 20 and 39, respectively. Transportability was obtained. Therefore, in order to stabilize transportability and enable automatic mounting in an ink jet recording (printing) apparatus, it is only necessary to improve the Clarke stiffness to 10 or more by laminating a base cloth having a small rigidity with a base paper. There was found. The upper and lower limits of the Clarke stiffness depend on the configuration of the ink jet recording apparatus, but are preferably 400 or less, more preferably 20 or less.
The adhesive layer and the base paper are selected according to the base cloth so as to be adjusted to a range of 300 or less.

The limit of the Clarke stiffness is related to the angle of the paper feed tray for dropping and the angle between the printing direction. If it is too small, the weight of the cut sheet-like cloth recording medium and the driving force of the transport drive roller received at the leading end are considered. It became difficult to send to the press contact part. On the other hand, if it is too large, it becomes difficult to correct the non-linearity such as slight curl of the cut sheet recording medium by using the peripheral surface of the transport drive roller to make the leading end linear. Further, even in the case of manually contacting the pressure contact portion without depending on the paper feed tray, it is necessary to hold the paper along the peripheral surface of the transport roller, and therefore, the above rigidity range is preferably preferable. found.

In the present reference example , in order to suppress a change in recording characteristics (dyeing characteristics) of the cut sheet-shaped cloth recording medium during distribution storage, the recording medium is put in an aluminum vapor deposition bag with a zipper and packed in a paper box. However, depending on the purpose and application, simple packaging with moisture-proof paper may be used.

Washing after ink jet recording may be carried out by washing with a commercially available neutral detergent, but a treating agent D may be used to further improve dyeing properties. It may be provided by being bundled with a sheet-like cloth recording medium. Further, in order to further improve the dyeing property, it is preferable to perform a heat treatment with an iron or the like prior to the washing. The treating agent D is a fixing agent or the like, and its main purpose is to improve wet fastness.

[0026] (ink-jet printing and recording apparatus) FIG. 1 illustrates the main part of the configuration of an inkjet printing (recording) apparatus of the present embodiment. In this figure, a carriage 706 has four ink tanks 701 each filled with dark and light inks of four colors of black, cyan, magenta, and yellow, and four recording heads 174 for discharging the four colors of ink. And an integrated recording head cartridge 702 is integrated.

FIG. 1 shows a state in which a cut sheet-like cloth recording medium is automatically mounted on a conveying roller pair in this embodiment . In the conventional ink jet recording apparatus, the member for pressing the recording medium against the cylindrical platen roller is once released, the recording medium is manually attached, and then the pressing member is pressed again to bring the platen roller and the recording medium into close contact with each other. those many ways of mounting by that less constraint such as stiffness of the recording medium in such a recording apparatus, but could also be transported and recorded at a low stiffness cloth swash since setting the cloth manually It was difficult to match the texture with the transport direction depending on the line, or to wind and transport without wrinkles, making it difficult to perform high-definition inkjet printing. Furthermore it is difficult to stabilize the transportability like pressing force of deterioration due to repeated use of the release mechanism, also the like to the mounting operation itself is poor in operability, which can be automatically mounted as in the present embodiment is preferred.

In FIG. 1, in the present embodiment , a feeding tray 705 is provided to be inclined in order to stably perform automatic mounting, and a cut sheet-shaped cloth recording medium 707 is inserted along the feeding tray. The leading end thereof is configured to correctly contact the transport drive roller 703. By rotating and driving the transport drive roller 703 in this state, the leading end of the cut sheet-shaped cloth recording medium 707 is correctly guided to the pressure contact portion of the transport roller pair, and the skewed or wrinkled paper is not generated. Automatically attached to In this reference example , as described above, the cut sheet-like cloth is cut in accordance with the texture of the recording medium, so that a stable image can be printed (recorded) in the direction of the predetermined cloth, and the printed cloth is cut out to form a patchwork or the like. In this case, the pattern of printing and the texture can be aligned, so that high-quality creation without distortion can be performed. If there is no feed tray, the leading edge of the cut sheet-shaped cloth recording medium may be aligned with the pressure contact portion between the transport driving roller and the transport driven roller, and the transport driving roller may be driven to rotate. As described above, the cut sheet-shaped cloth recording medium of the present invention has the same transport characteristics as that of plain paper, and other known paper feed registration adjusting mechanisms can be applied.

Reference numeral 703 denotes a transport driving roller which rotates in the direction of the arrow in the figure while holding the cut sheet-shaped recording medium 707 automatically mounted together with the transport driven roller 704, and feeds the recording medium 707 as needed. The carriage 706 stands by at a home position (not shown) when printing is not being performed or when performing a multi-head recovery operation or the like.

Before the start of printing, the carriage 706 at the position shown in the figure (home position) moves along the carriage guide shaft 708 upon receiving a print start command.
By printing the four colors of ink from the multi-nozzles on the print head 174 in accordance with the print signal at a timing based on the read signal of the linear encoder, printing is performed on the paper only by the width D. By this recording scan, black ink, cyan ink, magenta ink,
A dot is formed by landing the ink in the order of yellow ink. When printing of data to the end of the paper is completed, the carriage returns to the original home position and prints the next line again. After the first printing is completed and before the second printing is started, the paper is fed by the width D by rotating the transport driving roller 703. In this way, data printing on one page is completed by repeating printing and paper feeding for the printing width D of the printing head for each scan of the carriage. At the time when the recording is completed, the sheet is discharged by the conveying means, and at the same time, the platen 709, which has formed a flat recording surface at the time of printing, is inclined in the discharge direction to assist the discharge of the rear end portion. A means such as a spur roller may be provided on the downstream side of the recording unit in order to assist the discharge and stably hold the cut sheet recording medium in the recording unit.

FIG. 4 shows a recording head 174 for discharging ink.
FIG. 3 is an explanatory diagram of the configuration of FIG. One end of the wiring board 80 is mutually connected to a wiring portion of the heater board 81,
Further, the other end of the wiring board 80 is provided with a plurality of pads corresponding to each electric / thermal energy converter for receiving an electric signal from the main device. As a result, the electric signal from the main unit is supplied to each electric / thermal energy converter. Wiring board 80
A metal support 82 supporting the back surface of the ink jet unit in a plane serves as a bottom plate of the ink jet unit. The holding spring 83 is formed by bending a region in the vicinity of the ink ejection port of the groove top 84 to apply a pressing force on a line in a substantially U-shaped cross section and using a relief hole provided in the base plate to be hooked. And a pair of rear legs for receiving a force acting on the spring by the base plate. This spring force causes the wiring board 80
Is pressed against the groove 84. The attachment of the wiring board 80 to the support is performed by sticking with an adhesive or the like.

At the end of the ink supply pipe 85, a filter 8 is provided.
6 are provided. The ink supply member 87 is made by molding, and the groove top 84 also has an orifice plate 880.
And a flow path leading to each ink supply port are integrally formed. The fixing of the ink supply member 87 to the support 82 is performed as follows.
This is easily performed by projecting two pins (not shown) on the back surface side of the ink supply member 87 into the two holes 88 of the support member 82 and heat-sealing them. At this time, the gap between the orifice plate portion 880 and the ink supply member 87 is sealed, and the gap between the orifice plate portion and the front end of the support substrate 82 is completely sealed through the groove 89 provided in the support substrate 82. I do.

FIG. 5 shows the structure of a four-head integrated ink-jet cartridge 702 in which the four heads 174 capable of ejecting inks of four colors of K, C, M and Y are integrally assembled with a frame 170. . The four recording heads are mounted at predetermined intervals in the frame 170, and are fixed in a state where the registration in the nozzle row direction is also adjusted. In this reference example , the mutual landing position accuracy between colors is improved by adjusting using the mechanical reference surface of the head.However, the recording head is temporarily fixed to the frame and then actually ejected to set the landing position. The mutual landing positions between the colors may be directly adjusted based on the measured data to further improve the accuracy. 171 is a frame cover, and 173 is a connector for connecting pads provided on the wiring substrate 80 of the four recording heads and electric signals from the recording apparatus main body.
Assembling the four heads integrally is effective in improving the mutual landing position accuracy between the heads as described above, in addition to the superiority in handling, but the number of signal line connections to the recording apparatus main body can be reduced. It is also very effective in terms of point. For example, signal lines common to the four heads such as GND lines can be shared on the connector board 172 to reduce the number of lines as they are, and if an integrated circuit board is provided to perform time-division driving for each head It is also possible to use a common recording signal line. Such a reduction in the number of electrical connections is effective in an apparatus having a large number of signal lines, such as a color machine or a multi-nozzle high-speed machine.

[0034] rather than the bonding of the lower paper stiffness adjustment for improvement transportability base fabric in First Embodiment This embodiment, performed by treating it with a stiffening agent base fabric itself cut An example in which a sheet-like cloth recording medium is obtained will be described. In Clark stiffness with the goal as well as the reference example, the following Clark stiffness 10 or 400 possible values adapted to automatic mounting an ink jet recording apparatus, was preferably set to 20 to 300.

Treatment solution E containing a stiffening agent to improve the stiffness of the cloth itself (100 parts by weight of urea, 30 parts by weight of sodium hydrogen carbonate, 5 parts by weight of sodium alginate,
(10 parts by weight of sodium metanitrobenzenesulfonate, 855 parts by weight of water), the base cloth is treated with a 100-mesh, solid-pattern screen using a zimmer-type printing machine, and dried at 100 ° C. for 2 minutes. I let it. As ink prescription F, (CI Reactive Blue 15
10 parts by weight, 25 parts by weight of diethylene glycol, water 6
(5 parts by weight) was stirred for 2 hours, and then filtered.

When a transport test was carried out using the ink jet recording apparatus shown in the reference example , good transportability was obtained, and a high-definition printed fabric was obtained.

Washing after ink jet recording may be carried out by washing with water using a commercially available neutral detergent, but a treating agent D may be used to further improve dyeing properties. It may be provided by being bundled with a sheet-like cloth recording medium. Further, in order to further improve the dyeing property, it is preferable to perform a heat treatment with an iron or the like prior to the washing. The treating agent D is a fixing agent or the like, and its main purpose is to improve wet fastness. In this embodiment, the post-treatment agent is provided in a form such as a bag. However, the post-treatment agent is absorbed in a non-printing area (a front end portion, a rear end portion, and the like) of the base fabric so that the post-treatment agent is dissolved when washed with water. May be.

( Second Embodiment) In this embodiment, as shown in FIG. 6, an example of an ink jet recording apparatus equipped with an automatic feeding mechanism in addition to the automatic mounting of a cut sheet recording medium is shown. Further, in the present embodiment, a mechanism for heating the recording medium after inkjet recording to improve the dyeing rate is also provided. Further, a recording mode selection mechanism is provided so that the recording method of the ink jet recording unit is improved to be applicable to a thick cut sheet cloth recording medium.

The feed mechanism in this embodiment can feed in a cut sheet form cloth printing medium shown in the previous you施例. As described above, the cut sheet-shaped cloth recording medium has been subjected to pretreatment for controlling the dyeing of the ink, and similarly to the conveyance mechanism, driving the feeding member in contact with the recording surface side has the conveyance property and the recording characteristic. It is not preferable from the point of view. That is, the feed drive member, which is the drive side of the feed member generally used in the ink jet recording apparatus, is an elastic member such as a rubber material, and the recording surface of the rubber material and the pre-processed cut sheet-like cloth recording medium are used. When frictional folds occur, the ink receiving characteristics of the folds change, causing a trail of feeding, and conversely, when the pretreatment agent is slightly transferred to the rubber material, the friction coefficient decreases. May cause poor feeding. Therefore, in the present embodiment, the feeding driving member is limited to the back side (non-recording side) of the cut sheet recording medium. Although the cut sheet-like cloth recording medium shown in the embodiment of the present invention has improved transportability without using a base sheet, there is also a pre-treatment agent on the back side, but the feed driving member From the viewpoint of protection, the rear surface may be further subjected to a transfer prevention process. Alternatively without using any special treatment agent, by performing the previously slidingly rubbing against the back surface by a roll-like state before cutting, may be removed pretreatment agent that may be transferred .

The feed mechanism in this embodiment includes a feed drive rubber roller 902 that is rotated and driven as needed, a feed holding plate 901 that holds and holds a cut sheet-like cloth recording medium and moves up and down as needed. A separation pad 903 for separating the cut sheet-shaped cloth recording medium stacked in contact with the leading end portion of the sheet-shaped cloth recording medium, and feeding for feeding the separated and fed cut sheet-shaped cloth recording medium to a pair of conveying rollers. And a guide 904.

In response to the feed signal, the feed holding plate 901 first rises, and the cut sheet laminated and held on the feed holding plate with its back face up by the pressing force of the spring member provided on the feed holding plate. Cloth recording medium 707 and feed driving rubber roller 90
2 are pressed against each other. In this state, when the feeding driving rubber roller is driven to rotate in the feeding direction, the cut sheet-shaped cloth recording medium is fed by receiving frictional fold power on the back surface. At this time, frictional fold force is also generated between the stacked cut sheet-like cloth recording media, so that the uppermost cut sheet-like cloth recording medium that is in contact with the feed driving rubber roller is dragged and the lower one is simultaneously. Start being fed. At the same time, when the leading ends of the plurality of cut sheet-shaped cloth recording media that have started to be fed one after another reach the separation pad 903 having a high frictional force, they are sequentially stopped from below, so that one sheet is passed while passing over the separation pad. Only will be fed. The separated and fed cut sheet-shaped cloth recording medium reaches the press-contact portion of the pair of conveying rollers that is rotationally driven via the feeding guide by the feeding driving roller 902 which is still rotating, and is automatically mounted on the conveying roller. You. At the time of automatic mounting, the feed holding plate 901 descends at a certain timing, and the feed driving roller 90
When the feeding force of No. 2 is no longer transmitted to the cut sheet-shaped cloth recording medium, the rotation of the feed driving roller is stopped, and the feeding operation is completed. In the present embodiment, the cut sheet-shaped cloth recording medium is turned upside down by making a U-turn at the feed guide portion, so that the back side of the feed unit at the upper side is at the time of passing through the conveying roller pair. The recording surface is on the upper side. Therefore, the ink discharge direction in the ink jet recording unit is downward. The direction of ink ejection is slightly different depending on the ink jet recording system, but is preferably in a range from downward to horizontal, and may be fed in that direction by a feeding guide. Further, a configuration similar to that of a double-sided recording unit used in a recent copying machine or the like may be employed, in which the cut sheet-shaped cloth recording medium once fed back is turned upside down.

In any case, the important configuration when the feeding mechanism of the present embodiment separates and feeds the cut sheet-like cloth recording medium is that the feeding mechanism is driven from the back side of the cut sheet-like cloth recording medium. It is to limit. Therefore, a known method other than the separation pad method of the present embodiment, for example, a claw separation method can be applied, and the feed driving member may be pressed against the back side of the recording surface. In the automatic feeding mechanism, some frictional fold force is applied to the cut sheet-like cloth recording medium as described above, so that the Clark stiffness of the cut sheet-like cloth recording medium needs to be set slightly higher, preferably 25 to 300. It has been found that the feeding characteristics are stabilized by adjusting to the following range.

Although the ink jet recording operation itself has substantially the same configuration and operation as the reference example , description thereof will be omitted. However, in this embodiment, a heating means is provided downstream of the ink jet recording unit, and if necessary, a cut sheet It is configured to be able to perform a heat treatment on the cloth-like recording medium. As the heating means, basically any heating mechanism conventionally known in the field of printers and copiers can be applied, but it is possible to obtain a sufficient effect for improving the dyeing rate which is the object of the present embodiment. What is necessary is just to be comprised. Further, it is more preferable that the heating conditions are appropriately adjusted and selected according to the configuration of the cut sheet-shaped cloth recording medium, the material and the thickness of the base cloth, and the like. In the present embodiment, an infrared heater 905 with a reflection shade is used as the main heating means, and the energization is controlled under predetermined heating conditions in synchronization with the transport operation of the cut sheet-like cloth recording medium accompanying the inkjet recording. In the case where heating is performed directly from the recording surface side, heating unevenness and ink evaporation unevenness may occur in accordance with the color distribution of the print pattern and the like. Therefore, in this embodiment, heating is performed from the back surface side. However, depending on the configuration and heating conditions of the heating means, direct heating from the recording surface side or heating from both sides may be performed, or a contact heating method using a heating plate or the like may be used. In this embodiment, as an auxiliary configuration of the infrared heating method, a blowing means (not shown) is provided so that stable heating control can be performed by preventing heat or steam from staying in the vicinity of the heating section, and the heating section is provided with a wind as necessary. that have caused the flow.

In the ink jet recording apparatus capable of conveying the cut sheet-like cloth recording medium shown in this embodiment, the cloth thickness
The ink ejection amount can be adjusted and selected according to the material. When recording is performed using plain paper, the maximum amount of ink to be applied is limited in terms of reduced resolution, bleeding between colors, strikethrough, and increased fixing time. The maximum ejection amount is 16 to 2 for water-based ink.
It is general to design so as to be within about 8 nl / mm ² . However, when recording (printing) on a cut sheet-like cloth recording medium as in the present invention, more ink may be accepted depending on the material and thickness of the base cloth, and also on the pretreatment conditions. . Therefore, in the present embodiment, high-density recording is performed at a printing speed lower than the printing speed corresponding to the recording frequency, for example, double-density recording is performed at a printing speed of 1/2, or the same recording area is overprinted by performing multiple recording scans. Head drive control to increase the ink ejection amount, for example, by increasing the heat retention temperature in a thermal ink jet head, or by performing multi-pulse drive to increase the ink ejection amount as necessary. Is possible. In this embodiment, when the print mode is specified as thick on the operation panel 906, the same recording area is set to three.
Perform all colors 300% printing done in times of overprinting, and to perform all colors 200% Printout Specifying a thin cloth. Therefore, the optimum printing conditions could be selected according to the cloth, and the inside of the yarn could be dyed sufficiently, and a deep printed cloth could be obtained.

In this embodiment, printing is performed on a cut sheet-like cloth recording medium using an ink jet recording apparatus provided with a feeding mechanism, a heating mechanism, and a driving amount increasing mechanism. Simple inkjet printing with even better color depth has become possible.

[0046]

According to the present invention, it is possible to provide a cut sheet-like cloth recording medium having improved conveyance characteristics by improving rigidity and an ink jet recording apparatus having a conveyance means adapted to the cut sheet cloth. We can provide a simple printing method and apparatus applying the inkjet technology, and can perform high-definition color expression by a simple operation by the simple inkjet printing method applying the inkjet technology. It has become possible to apply it to general fields.

[Brief description of the drawings]

FIG. 1 is a main configuration diagram of an inkjet recording apparatus according to an embodiment of the present invention and a reference example .

FIG. 2 is a configuration diagram of a cut sheet-shaped cloth recording medium in a reference example for the present invention.

FIG. 3 is a block diagram of a simple ink printing method according to a reference example of the present invention.

FIG. 4 is a configuration diagram of an ink jet recording head applicable to the present invention.

FIG. 5 is a configuration diagram of a color inkjet recording head applicable to the present invention.

FIG. 6 is a main configuration diagram of an ink jet recording apparatus according to a second embodiment of the present invention.

[Explanation of symbols]

 601 Plain paper as a transport base material 601 Base cloth 603 Adhesive layer 703 Transport drive roller 704 Transport driven roller 707 Cut sheet-shaped cloth recording medium

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Miyuki Matsubara 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Jin Sugimoto 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon (56) References JP-A-63-6183 (JP, A) JP-A-2-68372 (JP, A) JP-A-2-219679 (JP, A) JP-A-3-140284 (JP, A A) JP-A-60-71767 (JP, A) JP-A-4-99688 (JP, A) JP-A-4-327262 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name ) D06P 5/00 B41J 2/01 B41M 5/00 D06P 7/00

Claims (9)

(57) [Claims] 1. A result by processing the base fabric itself in the stiffening agent, the print medium, wherein the Clark stiffness is 10 to 400. 2. The fabric according to claim 1 , wherein said base cloth has a horizontal or vertical orientation.
The direction of at least one set of sides of the lint medium matches
The print medium according to claim 1. 3. The sheet is processed into a cut sheet shape.
3. The print medium according to 1 or 2 . The printing medium according to any one of claims 4] claims 1-3, stained with ink using an ink jet recording apparatus, inkjet dyeing method characterized by obtaining a dyed fabric. 5. The ink jet dyeing method according to claim 4 , wherein the base fabric has been subjected to a dyeing adjustment process in advance. 6. A heat treatment after dyeing, jet dyeing method according to claim 4 or 5, washed with aqueous solution of the dyed fabric was dissolved color yield improver. 7. A pudding according to any one of claims 1 to 3.
Flop carried by means a conveying means for conveying the preparative medium
An ink jet recording unit for applying ink droplets to a lint medium and a heating unit for heating the print medium are provided .
An ink jet recording apparatus characterized by. 8. conveying means includes a U-turn conveying path for discharging inverts the printing medium automatic feeding means are separated and conveyed to separate conveying the print medium one by one, the reversing jet recording means The ink jet recording apparatus according to claim 7 , wherein the ink jet recording apparatus is disposed on a conveyance path after the area. 9. A non-printing means for a print medium as said conveying means.
The transport member is configured to be in contact with the recording surface side.
Item 9. The ink jet recording apparatus according to item 7 or 8.