JP2006312306A - Duplicate picture and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a duplicate picture which has an uneven feel peculiar to mineral pigments and has a high texture. <P>SOLUTION: The duplicate picture has a ground uneven layer 2 formed on a paper base 1, an accepting layer 3 formed on the ground uneven layer and a pattern layer 4 formed on the accepting layer. As to the ground uneven layer 2, the average height difference between projections and recesses is within the range of 100-120 μm and the formation density of the projections or/and the recesses is within the range of 80-1,500 pcs. /cm<SP>2</SP>. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to reproductions, particularly reproductions of rock-like Japanese paintings, and methods for producing the same.

  A rock paint is a material in which granular or powdery raw minerals are colored using glue water, etc. A Japanese painting drawn using this rock paint has a large number of minute irregularities with a rough surface.

  In addition to the unique color tones of the Japanese paintings of rock paint, the rough surface shape nurtures a special texture, which is one element that creates the beauty of the painting. When reproducing Japanese-style paintings, it is necessary to reproduce the rough surface as well as the color of the painting.

  Traditionally, when replicating Japanese paintings in the form of rock paint, a pattern layer was formed on a paper substrate by offset printing, and a transparent textured film was laminated to express the unique texture of rock paint. There was a problem that it was difficult to express the texture of a real Japanese painting because of the glare.

  On the other hand, in Patent Document 1, a material layer is formed on a base material such as Japanese paper, a color material receiving layer is formed on the material layer, and an image corresponding to the original image is reproduced on the color material receiving layer. A method for producing a replica is disclosed.

JP 2005-14387 A

  In the method for producing a replica disclosed in Patent Document 1, the material layer is composed of a base coating material composed of a binder and a white pigment, and an additive, and expresses a thick three-dimensional texture, It is used to create textures such as unevenness and roughness. In addition, a commercially available color material receiving material is used for forming the color material receiving layer.

  According to the method disclosed in Patent Document 1, since the concavo-convex shape is formed without laminating the conventional transparent concavo-convex processed film, the problem caused by the above-described merging can be solved.

  However, according to the study of the present inventors, the irregularities peculiar to rock paints are obtained simply by forming a colorant receiving layer using a commercially available colorant receiving material on a material layer having irregularities as in Patent Document 1. It has been found that it is difficult to fully express the feeling and there is also a problem in the adhesion of the colorant receiving layer itself.

  Accordingly, the present invention has an object to provide a high-quality reproduction with a textured texture that is closer to the real thing, and a high-quality reproduction that prevents surface peeling by improving the adhesion of the receiving layer. It is what.

  The configuration of the present invention made to solve the above problems is as follows.

That is, the first duplicate image of the present invention has a base concavo-convex layer formed on a paper substrate, a receiving layer formed on the base concavo-convex layer, and a pattern layer formed on the receiving layer. In the duplicate image, the base uneven layer has an average height difference between convex portions and concave portions in a range of 100 to 120 μm, and a formation density of convex portions or / and concave portions in a range of 80 to 1500 pieces / cm ² . It is characterized by being.

The second duplicated image of the present invention comprises an oil-based ink layer formed on a paper substrate, a base concavo-convex layer formed on the oil-based ink layer, and a receiving layer formed on the base concavo-convex layer. And a duplicate image having a pattern layer formed on the receiving layer, wherein the base uneven layer has an average height difference between the convex part and the concave part in the range of 100 to 120 μm, and the convex part or / and the concave part. The formation density is in the range of 80-1500 / cm ² .

Moreover, the underlying uneven layer has an average density of formation of projections or / and recesses, characterized in that in the range of 480 to 520 pieces / cm ^2.

  Moreover, the said base uneven | corrugated layer consists of a material containing cold water powder and calcium carbonate powder, It is characterized by the above-mentioned.

  The cold water powder has a particle size of 300 μm or less, and has a first peak in the particle size range of 50 to 80 μm and a second peak in the particle size range of 170 to 230 μm in the particle size distribution. The calcium carbonate powder has an average particle size of 3 to 5 μm.

  The receiving layer is made of a material containing calcium carbonate powder having an average particle diameter of 3 to 5 μm and a whiteness of 98% or more.

In addition, the first method for producing a duplicate image of the present invention includes:
On the paper base material, using a water-based base uneven layer forming screen ink containing at least an ethylene vinyl acetate emulsion, cold water powder and calcium carbonate powder, forming a base uneven layer;
A step of forming a receiving layer on the base concavo-convex layer using an aqueous receiving layer forming screen ink containing at least a curing agent;
Forming a pattern layer on the receiving layer by an inkjet printer;
It is characterized by having.

In addition, the second method for producing a duplicate image according to the present invention includes:
Forming an oil-based ink layer on a paper substrate;
On the oil-based ink layer, using a water-based base uneven layer forming screen ink containing at least an ethylene vinyl acetate emulsion, cold water powder, and calcium carbonate powder, forming a base uneven layer;
A step of forming a receiving layer on the base concavo-convex layer using an aqueous receiving layer forming screen ink containing at least a curing agent;
Forming a pattern layer on the receiving layer by an inkjet printer;
It is characterized by having.

  Further, the screen ink for forming the base uneven layer contains 20 to 25% by weight of the ethylene vinyl acetate emulsion and 44 to 46% by weight of the cold water powder.

  The cold water powder has a particle size of 300 μm or less, and has a first peak in the particle size range of 50 to 80 μm and a second peak in the particle size range of 170 to 230 μm in the particle size distribution. The calcium carbonate powder has an average particle size of 3 to 5 μm.

  The receiving layer forming screen ink contains 6.5 to 11.5% by weight of the curing agent.

  The receiving layer forming screen ink contains calcium carbonate powder having an average particle diameter of 3 to 5 μm and a whiteness of 98% or more.

According to the reproduction image of the present invention, the average height difference between the convex portions and the concave portions of the base uneven layer is in the range of 100 to 120 μm, and the formation density of the convex portions or / and the concave portions is in the range of 80 to 1500 pieces / cm ² . As a result, the pattern layer itself formed on the receiving layer formed thereon can express the unevenness of the rock paint tone, resulting in a highly realistic reproduction with a texture similar to the real rock paint.

  Moreover, according to the second reproduction of the present invention, by providing an oil-based ink layer on the paper substrate, the oil-based ink layer serves to prevent moisture from penetrating into the paper substrate, Paper curling can be prevented. Therefore, for example, when printing with an ink jet printer or the like, obstacles such as the head hitting the paper are reduced, and the output becomes more stable.

  According to the method for producing a reproduction of the present invention, a reproduction having a high commercial value, which has a unique uneven feeling of rock paint that is closer to the real thing, has improved adhesion of the receiving layer, and prevented surface peeling. be able to. In addition, since an aqueous material is used, organic solvents and toxic gases are not emitted, and the environmental load is small.

  Further, according to the second method for producing a duplicate image of the present invention, a duplicate image that can further prevent paper curling can be produced.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view schematically showing a part of the first duplicated image of the present invention, wherein 1 is a paper substrate, 2 is a base uneven layer, 3 is a receiving layer, and 4 is a picture layer.

  FIG. 2 is a cross-sectional view schematically showing a part of the second duplicated image of the present invention, wherein 1 is a paper substrate, 2 is a ground relief layer, 3 is a receiving layer, 4 is a pattern layer, and 5 is an oily material. It is an ink layer.

  As shown in the figure, the duplicate image of the present invention was formed on the base uneven layer 2 formed on the paper substrate 1, the receiving layer 3 formed on the base uneven layer 2, and the receiving layer 3. The first duplicate image having the pattern layer 4, the oil-based ink layer 5 formed on the paper substrate 1, the base uneven layer 2 formed on the oil-based ink layer 5, and the base uneven layer 2 are formed. There is a second reproduction having a receiving layer 3 and a pattern layer 4 formed on the receiving layer 3.

[Paper base]
Since the water-based ink is used in the method for producing a duplicate image of the present invention, the paper substrate 1 of the first duplicate image is preferably a paper that absorbs well and does not curl very much. For example, paper for paper (quality paper) or Japanese paper The basis weight is particularly preferably 250 to 320 g / m ² . When the basis weight is less than 250 g / m ² , curling tends to occur due to water absorption. On the other hand, if the basis weight exceeds 320 g / m ² , the paper thickness becomes thick and the surface thereof is easy to touch the print head, so that image formation becomes difficult.

  In addition, since the oil-based ink layer 5 serving as a waterproof wall is formed on the paper substrate in the second duplicate image, the paper substrate 1 of the second duplicate image is not particularly limited.

[Oil ink layer]
What is necessary is just to use what plays the role which prevents the penetration | invasion of the water | moisture content to the paper base material 1 as a material of the oil-based ink layer 5, For example, the oil-based ink etc. which contained the pigment as a coloring material in well-known oil-based ink are mentioned. In particular, if the paper base material is white, it is preferable to use an ink of the same color as the paper base material 1 such as using a white ink. The oil-based ink layer 5 can be formed by a known method such as an offset printing method, a gravure printing method, a flexographic printing method, or a screen printing method.

  The thickness of the oil-based ink layer 5 is preferably in the range of 35 to 48 μm. With this thickness, the oil-based ink layer 5 serves as a waterproof wall, and the paper substrate 1 does not absorb moisture flowing from each layer.

[Uneven surface layer]
In order to give the concavo-convex feeling peculiar to the rock paint, the base concavo-convex layer 2 needs to have an average height difference between the convex part and the concave part in the range of 100 to 120 μm. If this average height difference is less than 100 μm, the texture of the rock paint is weak, and a texture having the unevenness unique to the rock paint cannot be obtained. On the other hand, if this average height difference exceeds 120 μm, the unevenness is too conspicuous, and a sufficiently satisfactory rock paint tone cannot be obtained.

The base uneven layer, it is necessary that the formation density of the projections or / and recesses is in the range of 80 to 1,500 pieces / cm ^2. When the formation density is less than 80 / cm ² , the color of the rock paint is weak, and it is difficult to obtain a texture having a textured feeling unique to the rock paint. On the other hand, if the formation density is higher than 1500 pieces / cm ² , the unevenness is so conspicuous that a sufficiently satisfactory rock paint tone may not be obtained.

The base uneven layer has an average density of formation of projections or / and recesses is preferably in the range of 480 to 520 pieces / cm ^2. As a result, it is possible to obtain a rock-like color tone that is sufficiently satisfactory for the entire reproduction.

  The height difference and the formation density of the convex and concave portions of the underlying concave / convex layer can be observed and measured using, for example, a confocal microscope (confocal microscope), SEM (scanning electron microscope), or the like. In the case of a confocal microscope, the surface shape can be observed, and the altitude difference can be measured from the result. In the case of SEM, for example, the height difference can be measured by observing the cross section after processing the cross section with a vertical slicer.

  The formation density of the convex and concave portions of the underlying concave and convex layer defined in the present invention is a value obtained by counting only those having an altitude difference of 50 μm or more observed with a confocal microscope. In addition, the formation density of the convex part of a base uneven | corrugated layer as described in the below-mentioned Example and a recessed part is the value computed from the result of having observed the area | region of 2130 micrometers x 1710 micrometers using the laser tech Co., Ltd. optics C130.

[Formation of ground relief layer]
In the method for producing a reproduction according to the present invention, the base uneven layer having the surface uneven shape as described above is used with a water-based base uneven layer forming screen ink containing at least ethylene vinyl acetate emulsion, cold water powder, and calcium carbonate powder. Form.

  The ethylene vinyl acetate emulsion has a function as an adhesive, and is intended to enhance the adhesion of the underlying concavo-convex layer to the paper substrate or oil-based ink layer. This ethylene vinyl acetate emulsion is preferably contained in the screen ink for forming the underlying uneven layer in an amount of 20 to 25% by weight, particularly preferably 21 to 23% by weight. If it is less than 20% by weight, sufficient adhesion cannot be obtained, and the underlying concavo-convex layer is easily peeled off, or the underlying concavo-convex layer is likely to sag. On the other hand, when it exceeds 25% by weight, it is difficult to realize the height difference and the formation density of the protrusions and recesses of the underlying concavo-convex layer as described above, and it is difficult to obtain a texture having a concavo-convex feeling unique to rock paint.

  Cold water powder (calcite powder) and calcium carbonate powder (cucumber: oysters and scallop powder) are used to obtain the irregularities unique to rock paint. Rock paints (natural rock paints, new rock paints, synthetic rock paints) contain granular and powdery raw minerals such as calcite and slaked powder. In the present invention, such rock paints actually used. By including the material in the uneven surface layer, it is possible to beautifully reproduce the skin tone of rock paint.

  The cold water powder is preferably contained in the screen ink for forming the underlying uneven layer in an amount of 44 to 46% by weight. If it is less than 44% by weight, the color of the rock paint is weak, and it is difficult to obtain a texture with the unevenness unique to the rock paint. On the other hand, if it exceeds 46% by weight, it becomes difficult to obtain a rock-like color tone that makes the unevenness conspicuous and satisfactory, and the printability of the ink deteriorates.

  The cold water powder preferably has a particle size of 300 μm or less. The particle size of the calcite actually contained in the rock paint is approximately 200 μm or less. If the particle size of the cold water powder exceeds 300 μm, it becomes difficult to obtain a sufficiently satisfactory rock paint tone.

  Further, the cold water powder preferably has a first peak in the particle size range of 50 to 80 μm and a second peak in the particle size range of 170 to 230 μm in the particle size distribution. If it has such a particle size distribution, the base uneven | corrugated layer whose average height difference of the convex part of this invention and a recessed part is in the range of 100-120 micrometers can be stably formed with sufficient reproducibility.

  As for the average particle diameter of the said calcium carbonate powder, 3-5 micrometers is preferable. The particle size of the chopped powder (white painting material of Japanese painting) actually contained in the rock paint is approximately 5 μm, and if the average particle size of the calcium carbonate powder exceeds 5 μm, a sufficiently satisfactory rock paint tone can be obtained. Becomes difficult. Moreover, the said calcium carbonate powder has a high purity thing with high whiteness.

  The rock powder of the rock paint is used for the purpose of raising or making a white base, and the calcium carbonate powder used in the examples of the present invention (trade name Shell Lime / Hokkaido Kyodo Lime Co., Ltd.) Since scallop shells are used as a raw material, the average particle size is 3 to 5 μm and the whiteness is 98%, which is a high purity.

  The underlying uneven layer 2 is not only formed on the entire surface, but may be partially formed depending on the surface unevenness of the original image, and in order to obtain an uneven shape corresponding to the original image In some cases, it may be overprinted.

[Receptive layer]
In the present invention, since a pattern layer corresponding to the original image is formed on the surface having the uneven shape, a non-contact ink jet system is suitable for forming the pattern layer. For this reason, the receiving layer 3 which has the printability by an inkjet printer is provided on the said base uneven | corrugated layer 2. In FIG.

  Conventionally, it is not possible to use pigments such as silica and calcium carbonate in the receiving layer that is suitable for printing by an ink jet printer in order to exhibit excellent ink color development and ink absorbability, and to achieve high-definition image quality and high print density. Widely known.

  However, in the present invention, since the receiving layer 3 is provided on the base concavo-convex layer 2 having the concavo-convex shape as described above, there is a problem in that sufficient adhesion cannot be obtained with the composition of the conventional receiving layer and the surface is easily peeled off. is there.

  For this reason, in the method for producing a duplicate image according to the present invention, in addition to the composition of the conventional receiving layer, the receiving layer 3 is formed using a water-based receiving layer forming screen ink further containing a curing agent.

  As the curing agent, for example, isocyanate or the like that undergoes a crosslinking reaction with a hydroxyl group is appropriately used. This curing agent is preferably contained in the receiving layer forming screen ink at a ratio of 6.5 to 11.5% by weight. If the amount is less than 6.5% by weight, sufficient effects due to the curing agent cannot be obtained, and the adhesion tends to be insufficient. On the other hand, if it exceeds 11.5% by weight, sufficient adhesion can be obtained, but the vividness of the color tends to be inferior when the pattern layer is formed.

  Further, the screen ink for forming the receiving layer has an average particle size of 3 to 5 μm, a high whiteness, and a high purity with a whiteness of 98% or more in order to sufficiently express the texture of the powder of rock paint. It is preferable to contain calcium carbonate powder.

  The thickness of the receiving layer 3 is about 12 to 25 μm, and the surface thereof reflects the uneven shape of the underlying uneven layer 2 having the above-described unevenness of a rock-like color.

[Picture layer]
The pattern layer 4 is formed on the receiving layer 3 by an ink jet printer. The pattern layer 4 formed on the surface of the receiving layer 3 reflecting the uneven shape of the base uneven layer 2 having the unevenness of the rock paint tone can express the unevenness of the rock paint tone, and is more unique to the rock paint that is closer to the real thing A high-quality reproduction of the image can be obtained.

  Experimental examples and examples of the present invention will be described below. In addition, all the parts described below are parts by weight.

[Experimental Example 1]
The following investigations were made on the underlying uneven layer that can reproduce the texture and texture peculiar to rock paint.

The ink for forming the underlying concavo-convex layer was prepared by changing the blending ratio of the following liquid A and liquid B, and texture reproducibility, adhesion to paper, and printability were examined.
Liquid A: Carboxymethyl cellulose (# 1190 / manufactured by Daicel Chemical Industries)
1.6 parts water 100 parts cold water powder (particle size 300 μm or less) 220 parts calcium carbonate (particle size 3 to 5 μm)
(Shell Lime HPC / Hokkaido Kyodo Lime Co., Ltd.) 50 parts B liquid: Ethylene vinyl acetate emulsion (EH-004, Nitta Gelatin Co., Ltd.)
100 parts water 10 parts

(Blending ratio of liquid A and liquid B)
Liquid A / B = 100 parts / 25 parts, 100 parts / 30 parts, 100 parts / 35 parts, 100 parts / 50 parts, 100 parts / 60 parts, and 5 types of inks were prepared. At this time, a small amount of antifoaming agent was added in order to defoam.

  In addition, it is difficult to uniformly disperse powders of cold water and calcium carbonate in an ethylene vinyl acetate emulsion that functions as an adhesive, so it is difficult to disperse them uniformly. did.

(Printing method)
A 60-mesh screen (film thickness: 8 μm) and a solid plate (100% half-tone plate) were used as a screen plate, and it was applied to an art paper (kaki: 300 g / m ² ) by a screen printing method.

  The cold water powder used in this experimental example has a first peak in the vicinity of a particle size of 70 μm and a second peak in the vicinity of a particle size of 200 μm in the particle size distribution. For this reason, a coarse mesh of 60 mesh is used as the screen plate. Further, when a thick plate having a film thickness of 50 to 60 μm is used as the screen plate, the cold water powder is buried and the texture of the rock painting tends to be weakened. Table 1 shows the evaluation results of this experimental example.

[Experiment 2]
Next, change the ratio of the cold water in the liquid A of the ink for forming the base uneven layer, the average height difference between the convex and concave portions of the base uneven layer, the formation density of the convex and concave portions, texture reproducibility, printability, white I examined the degree.

(Combination ratio of cold water in liquid A)
Using 6 types of liquid A with the ratio of cold water in liquid A changed to 200 parts, 210 parts, 220 parts, 230 parts, 240 parts, and 250 parts, the composition of liquid A / liquid B = 100/30 Six inks were prepared in a ratio.

In the same manner as in Experimental Example 1, 60 mesh (film thickness: 8 μm) and solid plate (100% halftone plate) were used as the screen plate, and coating was carried out on the drawing material paper (kaki: 300 g / m ² ) by the screen printing method. Table 2 shows the evaluation results of this experimental example.

From these experimental results, it was found that the average height difference between the convex and concave portions of the underlying concave / convex layer was in the range of 100 to 120 μm, and the concave / convex formation density was in the range of 80 to 1500 / cm ^2. It was found that a rock paint tone that was satisfactory was obtained without being too conspicuous.

  In addition, by including 20 to 25 wt% ethylene vinyl acetate emulsion and 44 to 46 wt% cold water powder in the ink for forming the base uneven layer, while ensuring sufficient adhesion and printability of the base uneven layer, It was found that the base uneven layer can be formed with the average height difference and the formation density of the protrusions and recesses in the above range.

[Example 1]
As an example of the first duplicate image of the present invention, an example will be described in which a base uneven layer and a receiving layer are formed on an image paper as follows, and a picture layer is formed on the receiving layer by an ink jet printer.

(Formation of the underlying uneven layer)
An ink for forming a base uneven layer was prepared using the liquid A and liquid B of Experimental Example 1 (liquid A / liquid B = 100 parts / 30 parts, 100 parts / 35 parts, and two types of inks were prepared. ), 60 mesh (film thickness: 8 μm) as a screen plate and a solid plate (100% halftone plate) were used and coated on screen paper (kaki: 300 g / m ² ) by screen printing.

(Formation of receiving layer)
An ink for forming a receiving layer was prepared using the following liquid A and liquid B (liquid A / liquid B = 70 parts / 100 parts), 150 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% mesh) Plate), and was coated on the underlying concavo-convex layer by screen printing. The reason why 150 mesh is used as the screen plate is to follow the unevenness of the underlying uneven layer by using a finer plate than when forming the underlying uneven layer. In the present invention, 150 to 200 mesh is preferably used.
Liquid A: 6% PVA aqueous solution (# 224 / manufactured by Kuraray Co., Ltd.) 100 parts silica (average particle size: 5.5 μm)
(G-0166 / manufactured by Tosoh Silica Co., Ltd.) 15 parts B liquid: 6% PVA aqueous solution (# 224 / manufactured by Kuraray Co., Ltd.) 100 parts calcium carbonate (particle size 3-5 μm)
(Shell Lime HPC / Hokkaido Kyodo Lime Co., Ltd.) 50 parts

  Next, a pattern layer was formed on the receiving layer by an ink jet printer, and the texture reproducibility was evaluated by visual observation. A well-reproduced high-quality reproduction with a texture that is unique to rock paint was obtained.

[Example 2]
This example is an example in which a first duplicate was produced in the same manner as in Example 1 except that a curing agent was added to the receiving layer forming ink as follows.

  In the ink for forming the receiving layer of Example 1, (A liquid + B liquid) / curing agent = 100 parts / 5 parts, 100 parts / 7 parts, 100 parts / 10 parts, 100 parts / 13 parts, 100 parts / 15 parts Six types of inks with a curing agent added at a blending ratio of 100 parts / 20 parts were prepared. In addition, isocyanate (Aquanate # 120 / manufactured by Nippon Polyurethane Industry Co., Ltd.) was used as a curing agent.

  Table 3 shows the results of evaluating the color and wear properties of the duplicate images of this example. Table 3 also shows the evaluation results of the duplicate image of Example 1 (the number of curing agent parts = 0).

  From the results in Table 3, it can be seen that by adding a curing agent to the receiving layer forming ink, a receiving layer having high adhesion can be formed on the underlying uneven layer having the uneven shape of the present invention. In particular, by containing a curing agent in the proportion of 6.5 to 11.5% by weight in the ink for forming the receiving layer, it has high commercial value without inhibiting the vividness of the color of the pattern layer by the ink jet printer. Duplicate images can be produced.

[Example 3]
As an example of the second duplicated image of the present invention, an oil-based ink layer, a base uneven layer and a receiving layer are formed on an image paper as follows, and a picture layer is formed on the receiving layer by an ink jet printer. explain.

(Formation of oil-based ink layer)
Screen printing method using ink for forming an oil-based ink layer, 200 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% halftone plate), and drawing paper (fabrian paper: 220 g / m ² ) Printed twice. As the oil-based ink, white ink (JRP White / manufactured by Seiko Advance Co., Ltd.) was used.

(Formation of the underlying uneven layer)
Example 1 is the same as Example 1 except that the ink was prepared with a mixing ratio of A / B = 100 parts / 30 parts.

(Formation of receiving layer)
Example 1 is the same as Example 1 except that the substrate is printed twice on the underlying uneven layer by screen printing.

  Next, when a pattern layer was formed on the receiving layer by an ink jet printer, as in Example 1, a high-quality reproduction having a textured texture unique to rock paint was obtained, and the basis weight of the paper substrate was further increased. Despite being less than Example 1, the paper base material no longer absorbs moisture in each layer, preventing paper curling and making the output of the ink jet printer more stable.

It is sectional drawing which showed typically a part of 1st duplication image of this invention. It is sectional drawing which showed typically a part of 2nd reproduction of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper base material 2 Base uneven | corrugated layer 3 Receiving layer 4 Picture layer 5 Oil-based ink layer

Claims (12)

It is a duplicate image having a base concavo-convex layer formed on a paper substrate, a receiving layer formed on the base concavo-convex layer, and a pattern layer formed on the receiving layer, the base concavo-convex layer, A duplicate image, wherein an average height difference between a convex part and a concave part is in a range of 100 to 120 μm, and a formation density of convex parts or / and concave parts is in a range of 80 to 1500 pieces / cm ² . An oil-based ink layer formed on a paper substrate, a base uneven layer formed on the oil-based ink layer, a receiving layer formed on the base uneven layer, and a pattern layer formed on the receiving layer The base concavo-convex layer has an average height difference between the convex portions and the concave portions in the range of 100 to 120 μm, and the formation density of the convex portions or / and the concave portions is 80 to 1500 / cm ² . A reproduction characterized by being in range. The substrate concavoconvex layer, reproductions of claim 1 or 2 average formation density of the projections or / and recesses, characterized in that in the range of 480 to 520 pieces / cm ^2.   The duplicate image according to any one of claims 1 to 3, wherein the base uneven layer is made of a material containing cold water powder and calcium carbonate powder.   The cold water powder has a particle size of 300 μm or less, and has a first peak in the particle size range of 50 to 80 μm and a second peak in the particle size range of 170 to 230 μm in the particle size distribution. The duplicate image according to claim 4, wherein the calcium carbonate powder has an average particle size of 3 to 5 μm.   The reproduction image according to any one of claims 1 to 5, wherein the receiving layer is made of a material containing calcium carbonate powder having an average particle diameter of 3 to 5 µm and a whiteness of 98% or more. On the paper base material, using a water-based base uneven layer forming screen ink containing at least an ethylene vinyl acetate emulsion, cold water powder and calcium carbonate powder, forming a base uneven layer;
A step of forming a receiving layer on the base concavo-convex layer using an aqueous receiving layer forming screen ink containing at least a curing agent;
Forming a pattern layer on the receiving layer by an inkjet printer;
A method for producing a duplicate image, comprising: Forming an oil-based ink layer on a paper substrate;
On the oil-based ink layer, using a water-based base uneven layer forming screen ink containing at least an ethylene vinyl acetate emulsion, cold water powder, and calcium carbonate powder, forming a base uneven layer;
A step of forming a receiving layer on the base concavo-convex layer using an aqueous receiving layer forming screen ink containing at least a curing agent;
Forming a pattern layer on the receiving layer by an inkjet printer;
A method for producing a duplicate image, comprising:   9. The production of a duplicate according to claim 7 or 8, wherein the screen ink for forming the underlying uneven layer contains 20 to 25% by weight of the ethylene vinyl acetate emulsion and 44 to 46% by weight of the cold water powder. Method.   The cold water powder has a particle size of 300 μm or less, and has a first peak in the particle size range of 50 to 80 μm and a second peak in the particle size range of 170 to 230 μm in the particle size distribution. The method for producing a duplicate according to any one of claims 7 to 9, wherein the calcium carbonate powder has an average particle size of 3 to 5 µm.   The method for producing a duplicate image according to any one of claims 7 to 10, wherein the receiving layer forming screen ink contains 6.5 to 11.5 wt% of the curing agent.   The reproduction image according to claim 7, wherein the receiving layer forming screen ink contains calcium carbonate powder having an average particle diameter of 3 to 5 μm and a whiteness of 98% or more.

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