JP6938979B2 - Image forming body - Google Patents

Description

The present invention relates to an image forming body having a latent image region.

It is known that an embossed pattern is applied to the surface of a paper medium as a base material in order to prevent counterfeiting of valuable printed matter such as banknotes, stock certificates, and gift certificates. The embossed pattern applied to prevent forgery of such precious printed matter is a latent image in which the image appears and disappears depending on the viewing angle by engraving a fine embossed pattern in the shape of a perimeter on the surface of the base material, and an image depending on the viewing angle. Is configured as an image-forming body having a changing image that changes.

Patent Document 1 describes an image forming body having a latent image for preventing counterfeiting of securities and the like, and an invention relating to a method for manufacturing the image forming body.

The image forming body described in Japanese Patent Application Laid-Open No. 2005-238704 is composed of a perforated convex portion engraved by embossing the paper surface and a perennial pattern printed on the paper surface. , The area printed so that the universal pattern overlaps with the engraved universal convex portion and the area printed so that the universal pattern deviates by a predetermined pitch are mixed. .. For this reason, when the paper surface is observed from diagonally above in the direction orthogonal to the direction in which the universal convex portion extends, a density difference occurs in the visible universal pattern, which is difficult to see when the paper surface is viewed from the front. The image (latent image) will be visualized. The image forming body having a latent image described in Cited Document 1 is premised on printing a perimeter pattern on an embossed perimeter convex portion, and is premised on printing a perimeter convex portion. It is based on perceiving the deviation of the universal pattern with respect to.

On the other hand, various seat exterior materials used for furniture such as sofas and chairs, seats for automobiles and railways, various interior materials used for interiors of automobiles and railways, and skin materials for ornament members are also on the surface. An image forming body in which an embossed pattern is engraved is known. The purpose of adding the embossed pattern to the sheet exterior material, interior material, and skin material is to enhance the decorativeness of the surface of the base material and to enhance the texture of the surface of the base material. In general, such seat exterior materials, interior materials, and skin materials are often based on natural leathers, synthetic leathers, fabrics, and the like.

However, when an attempt is made to print a universal pattern as described in Patent Document 1 in order to form an image forming body having a latent image on a base material such as natural leathers, synthetic leathers, and fabrics, the base material is used. Depending on the compatibility with, it may be difficult to form a clear universal pattern. Since the invention described in Patent Document 1 is intended to prevent counterfeiting of securities and the like, it is premised on using a paper medium as a base material, and is based on natural leathers, synthetic leathers, fabrics and the like. No particular consideration was given to the case of using the material.

The present invention has been made to solve these conventional problems, and provides an image forming body in which a latent image or a changing image is formed on a base material formed of natural leather, synthetic leather, or fabric. The purpose is to do.

In order to solve the above problems, the present invention is an image forming body in which an uneven pattern is formed on the surface of a base material, and the base material is formed of natural leather, synthetic leather, or fabric. The uneven pattern has a background region having a plurality of background side convex portions extending in parallel and a latent image region having a plurality of latent image side convex portions extending in parallel. The latent image region constitutes at least one image or character, and the latent image side convex portion and the background side convex portion have different combinations of extending directions and pitches between the convex portions.

According to the above invention, in the image forming body, a concavo-convex pattern is formed on the surface of a base material formed of natural leather, synthetic leather, or fabric, and the concavo-convex pattern includes a background region and at least one. It has a latent image area that constitutes an image or text. The background side convex portion formed in the background region and the latent image side convex portion formed in the latent image region are formed so that the extending direction is different or the pitch between the convex portions is different. Therefore, when the image forming body is viewed from a predetermined direction, for example, when the image forming body is viewed from the front, the reflected light reflected by the background side convex portion formed in the background region and the latent image formed in the latent image region. The reflected light reflected by the latent image side convex portion is perceived to the same extent, and it is difficult to distinguish between the background area and the latent image area. The image in the latent image area becomes invisible or difficult to see. On the other hand, when the image forming body is viewed from a direction different from the predetermined direction, for example, when viewed from diagonally upward to the right of the image forming body, the reflected light reflected by the background side convex portion formed in the background region is used. In comparison, the reflected light reflected by the latent image side convex portion formed in the latent image region is strongly perceived. As a result, the latent image region is visualized with respect to the background region.

Therefore, a latent image or a changing image can be formed on a base material formed of natural leather, synthetic leather, or fabric.
The image referred to in the image forming body of the present invention is a concept including figures and characters. Further, the latent image referred to in the latent image region is a concept including a changing image.

In the above invention, it is preferable that the end portion of the background side convex portion and the end portion of the background side convex portion are continuously provided.
In the above invention, it is preferable that the surface roughness of the background side convex portion and the surface roughness of the background side convex portion are different.

In the above invention, the latent image region includes a first latent image region for forming a first image, a second latent image region for forming a second image, the first image, and the second image. Has a third latent image region, which is an overlapping region. The first latent image region has a plurality of first latent image side convex portions extending in parallel, and the second latent image region has a plurality of second latent image side convex portions extending in parallel. The three latent image regions have a plurality of third latent image side convex portions extending in parallel. It is preferable that the first latent image side convex portion, the second latent image side convex portion, and the third latent image side convex portion have different combinations of extending directions and pitches between the convex portions.

According to the present invention, it is possible to obtain an image forming body in which a latent image or a changing image is formed on a base material formed of natural leather, synthetic leather, or fabric.

The schematic schematic diagram explaining the image forming body of this embodiment. (A) is a schematic schematic diagram illustrating an image forming body of the present embodiment. (B) and (c) are diagrams for explaining the latent image region. The figure explaining the image forming body of this embodiment. (A) to (f) are diagrams showing a state that can be seen when the image forming body is observed from each arrow direction. A partially enlarged schematic view of a convex portion of an image forming body. The schematic schematic diagram explaining the modification example. The schematic schematic diagram explaining the modification example. The schematic schematic diagram explaining the modification example. The schematic schematic diagram explaining the modification example.

Hereinafter, an embodiment of the image forming body of the present invention will be described with reference to FIGS. 1 to 4.
As shown in FIG. 1, in the image forming body 10 of the present embodiment, by embossing one surface 20a of the base material 20, a plurality of fine convex portions 30 extending in parallel with each other (hereinafter, the base material 20). A plurality of fine convex portions formed on one surface 20a are collectively referred to as a universal convex portion), and a concavo-convex pattern is formed. The uneven pattern formed on the image forming body 10 of the present embodiment has seven regions A to G composed of the universal convex portions 30 having different configurations. In each of the regions A to G, the direction in which the universal convex portion 30 extends or the pitch between the universal convex portions 30 is different. By doing so, the image forming body 10 cannot recognize the one surface 20a of the base material 20 when it is observed from the front, but when it is observed from a predetermined direction, it becomes a latent image that can be visualized and recognized. Is formed.

The configuration of the universal convex portion 30 of the image forming body 10 of the present embodiment will be described in more detail with reference to FIG.
2 (a) shows the regions in which the regions A to G of FIG. 1 are formed, and shows the extending direction of the universal convex portions 30 formed in the regions A to G, or the universal convex portions. It is a figure explaining the pitch between 30. In the image forming body 10, the background region 1 is composed of a first latent image region 2 composed of the “character T” shown in FIG. 2 (b) and a “mountain-shaped image” shown in FIG. 2 (c). A second latent image region 3 is formed. In FIG. 2A, the region where the first latent image region 2 and the second latent image region 3 overlap is shown as the overlapping region 4.

The image forming body 10 is formed with a plurality of sections 50 extending in a strip shape parallel to the reference line 40 with reference to the reference line 40 which is a virtual line extending in the lateral direction. In the present embodiment, the width of the compartment 50 is 1.5 to 2.0 mm. The background region 1 is a region A in which the perforated convex portion 30 extends in a direction intersecting the direction orthogonal to the reference line 40 at an angle of −20 °, and + 70 ° with respect to the direction orthogonal to the reference line 40. Regions B in which the universal convex portions 30 extend in the direction of intersecting at an angle are alternately arranged side by side in the direction orthogonal to the reference line 40. Hereinafter, the inclination angle of the universal convex portion 30 is represented by + in FIG. 2A when it is inclined from the direction orthogonal to the reference line 40 to the right, and is inclined to the left from the direction orthogonal to the reference line 40. The case shall be represented by-.

The pitch between the universal convex portions 30 formed in the region A and the pitch between the universal convex portions 30 formed in the region B are the same, and each is set to about 1 to 100 μm. Here, among the universal convex portions 30 formed on the image forming body 10, the universal convex portions 30 formed in the regions A and B of the background region 1 are referred to as background side convex portions 31.

The first latent image region 2 includes a region C in which the perforated convex portion 30 extends in a direction intersecting the direction orthogonal to the reference line 40 at an angle of −70 °, and a direction orthogonal to the reference line 40. Regions D in which the universal convex portion 30 extends in the direction of intersection at an angle of + 20 ° are alternately arranged side by side. The region C of the first latent image region 2 is formed in the same compartment 50 as the region A of the background region 1, and the region D of the first latent image region 2 is formed in the same compartment 50 as the region B of the background region 1. There is. The pitch between the universal convex portions 30 formed in the region C and the pitch between the universal convex portions 30 formed in the region D are the same, and each is set to about 1 to 100 μm. Here, among the universal convex portions 30 formed on the image forming body 10, the universal convex portions 30 formed in the regions C and D of the first latent image region 2 are the first latent image side convex portions 32. Say.

In the second latent image region 3, it extends in a direction intersecting the direction orthogonal to the reference line 40 at an angle of −20 °, and is compared with the universal convex portion 30 formed in the regions A to D and G. The region E in which the universal convex portion 30 having a pitch about twice is formed is formed in the same section 50 as the region A of the background region 1. On the other hand, the second latent image region 3 is not formed in the same compartment 50 as the region B of the background region 1. Here, among the universal convex portions 30 formed on the image forming body 10, the universal convex portion 30 formed in the region E of the second latent image region 3 is referred to as a second latent image side convex portion 33. ..

The overlapping region 4 in which the first latent image region 2 and the second latent image region 3 overlap extends in a direction intersecting the direction orthogonal to the reference line 40 at an angle of + 70 °, and extends into regions A to D and G. The region F in which the universal convex portion 30 having a pitch about twice as large as that of the reference line 40 is formed, and the universal convex portion 30 is formed in a direction intersecting the direction orthogonal to the reference line 40 at an angle of + 45 °. The extending regions G are arranged side by side alternately. The area F of the overlapping area 4 is formed in the same section 50 as the area A of the background area 1, and the area G of the overlapping area 4 is formed in the same section 50 as the area B of the background area 1. Here, among the universal convex portions 30 formed on the image forming body 10, the universal convex portions 30 formed in the regions F and G of the overlapping region 4 are referred to as a third latent image side convex portion 34. The first latent image side convex portion 32, the second latent image side convex portion 33, and the third latent image side convex portion 34 are collectively referred to as the latent image side convex portion 34.

At the boundary portion of each of the regions A to G, the universal convex portions 30 formed in the adjacent regions are continuously provided. For example, at the boundary portion between the region A and the region B, at the position of the reference line 40, the end portion of the background side convex portion 31 formed in the region A and the end portion of the background side convex portion 31 formed in the region B. Are connected in a row. Similarly, in the region B and the region C, at the position of the reference line 40, the end portion of the background side convex portion 31 formed in the region B and the end portion of the first latent image side convex portion 32 formed in the region C. Are connected in a row. Further, in the same section 50 extending in a strip shape, adjacent regions, for example, the boundary portion between the region A and the region C, similarly, the end portion of the background side convex portion 31 formed in the region A and the first portion formed in the region C. 1 The end of the latent image side convex portion 32 is continuously provided. This also applies to other adjacent regions.

As shown in FIG. 4, the bottom surface 30a of the uneven pattern formed on the image forming body 10 is set to the same depth position. Further, the heights of the background side convex portion 31 and the latent image side convex portions 32, 33, and 34 are all formed to be at the same height position. That is, the depth position of the bottom surface 30a of the universal convex portion 30 in the concave-convex pattern constituting the background region 1, the first latent image region 2, the second latent image region 3, and the overlapping region 4 is the same, and the background side convex The height positions of the top portions 30b of the portion 31, the first latent image side convex portion 32, the second latent image side convex portion 33, and the third latent image side convex portion 34 are all the same. The height h of the top portion 30b of the background side convex portion 31, the first latent image side convex portion 32, the second latent image side convex portion 33, and the third latent image side convex portion 34 is preferably 5 to 50 μm. By setting the height h of the top portion 30b of each of the perforated convex portions 30 to this range, the switching of the recognized image or character becomes clear, and the decorativeness of the image forming body 10 is improved. It is preferable that the height h of each of the perforated convex portions 30 is appropriately adjusted according to the material, thickness, hardness, etc. of the base material 20.

Further, the inclination angle (indicated by θ in FIG. 4) of each of the perforated convex portions 30 is preferably 70 ° or less. When the inclination angle θ of each of the perforated convex portions 30 is within this range, it can be recognized as a regular uneven pattern, and the decorativeness of the image forming body 10 is improved.

The base material 20 of the present embodiment is coated with natural leather such as cowhide, sheep leather, pig leather, goat leather, and synthetic resin such as polycarbonate resin, acrylic resin, acrylonitrile-butadiene-styrene resin, polypropylene resin, and polyethylene resin. Synthetic leather, or fabrics such as woven fabrics, knitted fabrics, and non-woven fabrics can be appropriately selected and used. A decorative layer may be provided, such as a lame-shaped surface gloss layer provided on the base material 20.

When the image forming body 10 of the present embodiment is applied to a sheet exterior material, various interior materials, a skin material, etc., the sheet exterior material or the like may be composed of a single layer of the base material 20, and the sheet exterior material or the like may be composed of a plurality of layers. As a result, the base material 20 may be arranged on the surface side thereof.

Further, the base material 20 preferably has appropriate flexibility in order to enhance transferability from the embossed plate in the embossing process described later. Flexibility can be measured according to JIS K7215. For example, it is preferable that the thickness of the base material 20 is less than 5 mm and the hardness is 50 degrees or less. When the hardness of the base material 20 is within this range, the transferability from the embossed plate becomes good, and the reproducibility of the uneven pattern engraved on the embossed plate on the base material 20 is improved. As a result, the decorativeness of the image forming body 10 is improved.

The image forming body 10 can be manufactured by a known embossing process. An embossed plate on which an embossed pattern corresponding to the uneven pattern formed on the image forming body 10 is engraved is arranged on one surface 20a side of the base material 20 and a receiving member is arranged on the other surface side. The base material 20 is sandwiched between the embossed plate and the receiving member and pressed. In this case, the embossed plate and the receiving member are heated. The material of the embossed plate is not particularly limited, but it is preferably made of copper because of its excellent workability. Further, when the surface of the embossed plate is provided with a trivalent chromium layer, the wear resistance is improved and the image forming body 10 is excellent in mass productivity. The pressure at the time of heating and pressing, the pressing time, the heating temperature and the like can be appropriately adjusted depending on the material, thickness, hardness and the like of the base material 20.

Next, the operation of the image forming body 10 of the present embodiment will be described.
FIG. 3 shows a state that can be seen when the image forming body 10 is observed from different angles. As shown in FIG. 3A, when the image forming body 10 is viewed from the front, it is difficult to distinguish the background region 1, the first latent image region 2, the second latent image region 3, and the overlapping region 4, and the whole is It is recognized as a fine horizontal stripe pattern extending in the direction along the reference line 40. As shown in FIG. 4, when observing the image forming body 10, light is reflected on the surfaces of a plurality of universal convex portions 30 formed on the image forming body 10, so that the reflected light is perceived. The image formed on the image forming body 10 can be recognized. When the image forming body 10 of the present embodiment is viewed from the front, the background side convex portions 31 formed in the regions A and B of the background region 1 and the first latent image region 2 formed in the regions C and D. 1 Latent image side convex portion 32, 2nd latent image side convex portion 33 formed in region E of 2nd latent image region 3, and 3rd latent image side convex portion formed in regions F and G of overlapping region 4. Since the light reflected by 34 is perceived with the same intensity, the "letter T" and the "mountain-shaped image" are indistinguishable from the background area 1, and are invisible or difficult to see. ..

On the other hand, as shown in FIGS. 3 (b) and 3 (e), when the image forming body 10 is observed from the diagonally upper right direction or the diagonally upper left direction, the "letter T" is visualized. NS. This is reflected by the first latent image side convex portion 32 formed in the regions C and D of the first latent image region 2, and the third latent image side convex portion 34 formed in the regions F and G of the overlapping region 4. Compared with the light reflected by the background side convex portion 31 formed in the regions A and B of the background region 1 and the second latent image side convex portion 33 formed in the region E of the second latent image region 3. By being strongly recognized. As a result, the "mountain-shaped image" is latently imaged in the background region 1 and is invisible or difficult to see, but the "letter T" is visible in the background area 1.

As shown in FIGS. 3 (c) and 3 (f), when the image forming body 10 is observed from an obliquely upward direction in the lower right or an obliquely upward direction in the upper left, a "mountain-shaped image" is visualized. This is the light reflected by the second latent image side convex portion 33 formed in the region E of the second latent image region 3 and the third latent image side convex portion 34 formed in the regions F and G of the overlapping region 4. Compared with the light reflected by the background side convex portions 31 formed in the regions A and B of the background region 1 and the first latent image side convex portions 32 formed in the regions C and D of the first latent image region 2. By being strongly recognized. As a result, the "letter T" is latently imaged in the background region 1 and is invisible or difficult to see, while the "mountain-shaped image" is visible in the background area 1.

As shown in FIG. 3D, when the image forming body 10 is observed from an obliquely upward direction below, the “letter T” and the “mountain-shaped image” are visualized. This includes the first latent image side convex portion 32 formed in the regions C and D of the first latent image region 2, the second latent image side convex portion 33 formed in the region E of the second latent image region 3, and the second latent image side convex portion 33. The light reflected by the third latent image side convex portion 34 formed in the overlapping regions 4 F and G is compared with the light reflected by the background side convex portions 31 formed in the regions A and B of the background region 1. By being strongly recognized.

As described above, the image forming body 10 of the present embodiment has the background side convex portion 31 formed in the regions A and B of the background region 1 and the first latent portion formed in the regions C and D of the first latent image region 2. The image side convex portion 32, the second latent image side convex portion 33 formed in the region E of the second latent image region 3, and the third latent image side convex portion 34 formed in the regions F and G of the overlapping region 4. By forming the reference line 40 at a different angle or forming the pitch between the universal convex portions 30 at different angles, the "letter T" or "mountain" that was not visible or was difficult to see depending on the viewing angle. "Like image" is visualized. At this time, the first latent image region 2 and the second latent image region 3 form a so-called latent image, and are integrated with the "letter T" or the "mountain-shaped image" depending on the viewing angle. Reference numeral 4 constitutes a so-called changing image.

According to the above embodiment, the following effects can be achieved.
(1) The image forming body 10 of the present embodiment consists of seven universal convex portions 30 having different configurations on one surface 20a of a base material 20 formed of natural leather, synthetic leather, or fabric. It has regions A to G. In each of the regions A to G, the direction in which the universal convex portion 30 extends or the pitch between the universal convex portions 30 is different. Therefore, depending on the viewing angle, only the "T character" can be seen, only the "mountain-shaped image" can be seen, or both the "T character" and the "mountain-shaped image" can be seen, neither of which can be seen. Or something. By making the direction in which the universal convex portion 30 extends or the pitch between the universal convex portions 30 different, natural leather, synthetic leather, and fabric can be used without printing a universal pattern on the base material 20. A latent image can be formed on the base material 20 formed by either of them.

(2) A plurality of different images or characters can be formed as latent images by appropriately providing regions having different pitches in the direction in which the universal convex portions 30 extend or between the universal convex portions 30 as necessary. can.

(3) When two images or characters overlap, in the overlapping region 4, which is an overlapping region, the first latent image side convex portion 32 forming the first latent image region 2 of one image or character and the other image or the other image or characters. Both the second latent image side convex portion 33 forming the second latent image region 3 of the character and the second latent image side convex portion 33 form the third latent image side convex portion 34 in a different direction or at a different pitch. Therefore, there are cases where only the first latent image region 2 is visualized, cases where only the second latent image region 3 is visualized, and cases where the first latent image region 2 and the second latent image region 3 are revealed. The case of being imaged can be clarified.

(4) The end portions of the universal convex portions 30 formed in the respective regions A to G are continuously provided in adjacent regions. Therefore, the switching of the recognized image or character becomes clear, and the decorativeness of the image forming body 10 is improved.

(5) The height of the universal convex portion 30 formed in each of the regions A to G is set to 5 to 50 μm. Therefore, the switching of the recognized image or character becomes clear, and the decorativeness of the image forming body 10 is improved.

(6) The inclination angle of the universal convex portion 30 formed in each of the regions A to G is 70 ° or less. Therefore, the switching of the recognized image or character becomes clear, and the decorativeness of the image forming body 10 is improved.

The above embodiment may be modified as follows, or the following modification examples may be applied in combination.
-In the above embodiment, the background area 1 is formed in parallel with the area A and the area B in a section extending in a band shape parallel to the reference line 40 which is a virtual line extending in the lateral direction. However, the area constituting the background area 1 is not limited to two, and may be three or more. For example, as the background region 1, one of the strip-shaped compartments 50 parallel to the reference line 40 is designated as region A, the compartment 50 adjacent to region A is designated as region B, and the compartment 50 adjacent to region B is designated as region H. The background region 1 can be configured by forming the regions A, B, and H in parallel in order.

-The background area 1 may be composed of only one area. As shown in FIG. 5, the direction in which the background region 1 intersects the reference line 40 (indicated by the alternate long and short dash line in FIG. 5), which is a virtual line extending in the lateral direction, at an angle of −20 °. It is composed of a region A in which the universal convex portion 30 (convex portion 31 on the background side) extends, and the "letter T", which is the latent image region 2, intersects the direction orthogonal to the reference line 40 at an angle of + 70 °. It may be composed of the region B in which the universal line-shaped convex portion 30 (first latent image side convex portion 32) extends in the direction in which the line is formed.

In the above embodiment, the second latent image region 3 is configured such that the region E is formed in the same compartment 50 as the region A of the background region 1 and is not formed in the same compartment 50 as the region B of the background region 1. However, as shown in FIG. 6, the second latent image region 3 may be formed in the same compartment 50 as the region B of the background region 1. For example, a perforated convex portion 30 (second latent image side convex portion 33) extending in a direction intersecting the same section 50 as the area B of the background region 1 at an angle of −45 ° with respect to the direction orthogonal to the reference line 40. ) Is formed in the region H. In this way, by providing the second latent image region 3 in both the compartments 50 of the regions A and B of the background region 1, the "mountain-shaped image" can be made more conspicuous.

In the above embodiment, the first latent image region 2 has a configuration in which a region C is formed in the same compartment 50 as the region A of the background region 1 and a region B is formed in the same compartment 50 as the region B of the background region 1. .. However, the present invention is not limited to this, and a configuration may be configured in which the area C is only formed in the same section 50 as the area A of the background area 1 and the area B of the background area 1 is not formed in the same section 50. Similarly, the configuration may be such that the region C is not formed and only the region D is formed.

In the above embodiment, the first latent image side convex portion 32, the second latent image side convex portion 33, and the third latent image side convex portion 34 are formed so as to extend in a direction intersecting the background side convex portion 31. The degree of perception of the reflected light is changed to visualize the light as either the case where the light is present or the case where the light is formed at a pitch different from that of the background side convex portion 31. In addition to this configuration, the surface roughness of each of the background side convex portion 31, the first latent image side convex portion 32, the second latent image side convex portion 33, and the third latent image side convex portion 34 is changed. It may be. In this case, the surface roughness of each of the perforated convex portions 30 formed on the image forming body 10 is changed by applying a matte treatment or a gloss treatment to the surface of the concave portion formed in the embossed plate. Can be done. As a result, the appearance of the image or the character can be changed, and the boundary portion of the image or the character can be clarified, so that the decorativeness of the image forming body 10 is improved.

The extending direction of the universal convex portions 30 and the pitch between the universal convex portions 30 in the regions A to H formed in the image forming body 10 of the above embodiment are not limited to this. Whether the latent image side convex portions 32, 33, 34 are formed so as to extend in a direction intersecting the background side convex portion 31, or are formed at a pitch different from that of the background side convex portion 31. For example, the extending direction of the universal convex portion 30 in each region A to H and the pitch between the universal convex portions 30 can be appropriately set.

-In the above embodiment, the "character T" and the "mountain-shaped image" are visualized when viewed from different angles, but when viewed from the same angle, a plurality of images or characters are formed. May be visualized. In this case, the images or characters to be visualized at the same time may extend in the direction of intersecting the reference line 40 at the same angle and may be composed of the latent image side convex portions 32, 33, 34 formed at the same pitch. ..

-In the above embodiment, the latent image region composed of the "character T" and the "mountain-shaped image" has been described, but the image or character constituting the latent image region can be appropriately selected. A latent image region may be formed by a plurality of characters, or a latent image region may be formed by a plurality of images.

-In the above embodiment, the entire "letter T" is composed of areas C, D, F, and G, and the entire "mountain-shaped image" is composed of areas E, F, and G, but the present invention is not limited to this. .. As shown in FIG. 7, for example, only the contour portion of the “character T”, that is, only the contour portion of the latent image region 2 intersects the background side convex portion 31 of the background region 1, or the latent image side convex with a different pitch. The inside of the "letter T" may be configured by the portion 32, and may have the same configuration as the background side convex portion 31 of the background region 1.

-In the above embodiment, each of the regions A to H is composed of one type of universal convex portion 30, but a universal convex portion 30 extending in a plurality of directions may be formed in one region. For example, as schematically shown in FIG. 8, when the “letter T” and the “letter F” partially overlap to form the overlapping area 4, the areas K and L constituting the overlapping area 4 The universal convex portion 30 (third latent image side convex portion 34) may be formed as a state in which two to four types of universal convex portions 30 extending in different directions are continuously provided. Note that FIG. 8 shows the case of two types of universal convex portions 30. In this case, the third latent image side convex portion 34 of the overlapping region 4 region K is replaced with the first latent image side convex portion 32 of the first latent image region 2 region I which is a part of the “letter T”. It is assumed that the second latent image side convex portion 33 of the region E of the second latent image region 3 which is a part of the “letter F” is connected in succession. Further, the third latent image side convex portion 34 of the overlapping region 4 region L is replaced with the first latent image side convex portion 32 of the first latent image region 2 region D which is a part of the “letter T”. It is assumed that the second latent image side convex portion 33 of the region G of the second latent image region 3 which is a part of the "character F" is continuously provided. By doing so, in the overlapping region 4, the "character T" and the "character F" are changed depending on the direction in which the image forming body 10 is viewed, and each character becomes clearer.

1 ... Background area, 2 ... 1st latent image area, 3 ... 2nd latent image area, 4 ... Overlapping area, 10 ... Image forming body, 20 ... Base material, 30 ... Part, 32 ... 1st latent image side convex part (latent image side convex part), 33 ... 2nd latent image side convex part (latent image side convex part), 34 ... 3rd latent image side convex part (latent image side convex part) Part), 40 ... Reference line.

Claims (5)

An image forming body in which an uneven pattern is formed on the surface of a base material.
The base material is made of natural leather, synthetic leather, or fabric.
The uneven pattern has a background region having a plurality of background-side convex portions extending in parallel and a latent image region having a plurality of latent image-side convex portions extending in parallel.
The latent image region constitutes at least one image or character and constitutes.
The latent image side convex portion and the background side convex portion have different combinations of extending directions and pitches between the convex portions .
An image forming body characterized in that an end portion of the background side convex portion and an end portion of the latent image side convex portion are continuously provided at a boundary portion between the background region and the latent image region. The latent image region is a first latent image region having a first latent image side convex portion for forming a first image, and a second latent image having a second latent image side convex portion for forming a second image. Has an area and
A claim in which an end portion of the first latent image side convex portion and an end portion of the second latent image side convex portion are continuously provided at a boundary portion between the first latent image region and the second latent image region. Item 2. The image forming body according to item 1. The image forming body according to claim 1 or 2, wherein the latent image region has the latent image side convex portion at least in the contour portion of the latent image region. The image forming body according to any one of claims 1 to 3, wherein the surface roughness of the background side convex portion and the surface roughness of the latent image side convex portion are different. The latent image region is a region in which a first latent image region for forming a first image, a second latent image region for forming a second image, and the first image and the second image overlap each other. Has a third latent image region
The first latent image region has a plurality of first latent image side convex portions extending in parallel.
The second latent image region has a plurality of second latent image side convex portions extending in parallel.
The third latent image region has a plurality of third latent image side convex portions extending in parallel.
The first latent image side convex portion, the second latent image side convex portion, and the third latent image side convex portion have different combinations of extending directions and pitches between the convex portions, according to claims 1 to 4. The image forming body according to any one item.

Images