JP2008106412A - Printing paper and reproductions - Google Patents

Abstract

The present invention provides a high-quality reproduction having a textured texture unique to rock paint.
A printing paper 6 having a base uneven layer 2 partially formed on a paper substrate 1 and a transparent receiving layer 3 formed at least on the base uneven layer, wherein the base uneven The layer is characterized in that the average height difference between the convex part and the concave part is in the range of 100 to 120 μm, and the formation density of the convex part or / and the concave part is in the range of 80 to 1500 / cm ² .
[Selection] Figure 1

Description

  The present invention relates to a printing paper, in particular, a printing paper suitable for drawing a reproduction of a Japanese painting with a rock-like tone, and a reproduction thereof.

  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 colors of rock-like Japanese paintings, the rough surface shape creates a special texture, which is one element that creates the beauty of paintings. 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.

  In Patent Document 2, a relief layer having an ink deposit dimensioned and arranged so as to correspond to the contrast of the original artwork is formed on a base substrate, and a color printing layer is formed on the relief layer. A combined reproduction is disclosed.

JP 2005-14387 A Japanese Patent Laid-Open No. 2005-7878

  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.

  Furthermore, since the material layer is formed on the entire surface of the base material using a white pigment for the material layer, for example, when the base material is a Japanese paper, only a part of the work drawn with rock paint is duplicated. There is also a problem that it is impossible to create a duplicate image utilizing the texture of Japanese paper.

  On the other hand, Patent Document 2 discloses that the uneven layer is partially provided, but does not disclose anything about the receiving layer.

  Therefore, the present invention can reproduce a high-quality reproduction with a texture that is unique to rock paint, which is closer to the real thing, and can reproduce a high-product-value reproduction that improves the adhesion of the receiving layer and prevents surface peeling. It is an object of the present invention to provide a printing paper capable of reproducing a duplicate image utilizing the texture of the paper substrate itself and a duplicate image thereof.

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

That is, the first printing paper of the present invention is a printing paper having a base concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the base concavo-convex layer, 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 is in a range of 80 to 1500 pieces / cm ^2. To do.

The second printing paper of the present invention includes a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least on the base uneven layer. In the printing paper having a transparent receiving layer formed on the substrate, the base uneven layer has an average height difference between the convex portion and the concave portion in the range of 100 to 120 μm, and the formation density of the convex portion or / and the concave portion is The water-based ink layer is composed of 60 to 80 parts by weight of diglycerin and 40 to 20 parts by weight of water (the total of both being 100 parts by weight), and 80 to 1500 pieces / cm ² . It is formed by a water-based ink containing 3 to 9 parts by weight of calcium carbonate with respect to 100 parts by weight of diglycerin and water in total.

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 contains a cold water powder and a 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.

Further, the third printing paper of the present invention is a printing paper having a base concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the base concavo-convex layer, The base uneven layer has an average height difference between a convex portion and a concave portion in a range of 70 to 90 μm, and a formation density of the convex portion or / and the concave portion is in a range of 80 to 800 pieces / cm ^2. To do.

The fourth printing paper of the present invention includes a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least on the base uneven layer. In the printing paper having a transparent receiving layer formed on the substrate, the base uneven layer has an average height difference between the convex part and the concave part in a range of 70 to 90 μm, and the formation density of the convex part or / and the concave part is and being in the range of 80 to 800 pieces / cm ^2, also the water-based ink layer is 60 to 80 parts by weight of diglycerin, and water 40 to 20 parts by weight (the total of both 100 parts by weight), It is formed by a water-based ink containing 3 to 9 parts by weight of calcium carbonate with respect to 100 parts by weight of diglycerin and water in total.

Moreover, the underlying uneven layer has an average density of formation of projections or / and recesses, characterized in that in the range of 370 to 410 pieces / cm ^2.

  Moreover, the said base uneven | corrugated layer contains a cold water powder and a 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 60 to 70 μm and a second peak in the particle size range of 190 to 200 μm in the particle size distribution. The calcium carbonate powder has an average particle size of 3 to 5 μm.

The fifth printing paper of the present invention is a printing paper having a base uneven layer partially formed on a paper substrate and at least a transparent receiving layer formed on the base uneven layer, The base concavo-convex layer has an average height difference between convex portions and concave portions in a range of 80 to 95 μm, and a formation density of convex portions or / and concave portions is in a range of 190 to 1100 pieces / cm ^2. To do.

The sixth printing paper of the present invention includes a transparent water-based ink layer formed on a paper substrate, a base concavo-convex layer partially formed on the water-based ink layer, and at least on the base concavo-convex layer. In the printing paper having a transparent receiving layer formed on the substrate, the base uneven layer has an average height difference between the convex part and the concave part in the range of 80 to 95 μm, and the formation density of the convex part or / and the concave part is and being in the range of 190 to 1100 pieces / cm ^2, also the water-based ink layer is 60 to 80 parts by weight of diglycerin, and water 40 to 20 parts by weight (the total of both 100 parts by weight), It is formed by a water-based ink containing 3 to 9 parts by weight of calcium carbonate with respect to 100 parts by weight of diglycerin and water in total.

Moreover, the underlying uneven layer has an average density of formation of projections or / and recesses, characterized in that in the range of 450 to 490 pieces / cm ^2.

  Moreover, the said base uneven | corrugated layer contains a cold water powder and a 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 peak in the particle size range of 70 to 90 μm in the particle size distribution, and the average particle size of the calcium carbonate powder is 3 to 5 μm. It is characterized by.

The seventh printing paper of the present invention is a printing paper having a base uneven layer partially formed on a paper substrate and at least a transparent receiving layer formed on the base uneven layer, The base uneven layer has an average height difference between convex portions and concave portions in a range of 30 to 50 μm, and a formation density of convex portions or / and concave portions in a range of 80 to 800 pieces / cm ^2. To do.

In addition, an eighth printing paper of the present invention includes a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least on the base uneven layer. In the printing paper having a transparent receiving layer formed on the substrate, the base uneven layer has an average height difference between the convex part and the concave part in the range of 30 to 50 μm, and the formation density of the convex part or / and the concave part is and being in the range of 80 to 800 pieces / cm ^2, also the water-based ink layer is 60 to 80 parts by weight of diglycerin, and water 40 to 20 parts by weight (the total of both 100 parts by weight), It is formed by a water-based ink containing 3 to 9 parts by weight of calcium carbonate with respect to 100 parts by weight of diglycerin and water in total.

Moreover, the underlying uneven layer has an average density of formation of projections or / and recesses, characterized in that in the range of 370 to 410 pieces / cm ^2.

  Moreover, the said base uneven | corrugated layer contains a cold water powder and a 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 peak in the particle size range of 40 to 50 μm in the particle size distribution, and the average particle size of the calcium carbonate powder is 3 to 5 μm. It is characterized by.

Further, a ninth printing paper of the present invention is a printing paper having an underlying concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the concavo-convex layer, The foundation uneven layer has an average height difference between convex portions and concave portions in a range of 25 to 45 μm, and a formation density of convex portions or / and concave portions is in a range of ²⁰ to 500 pieces / cm ^2. To do.

The tenth printing paper of the present invention includes a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least on the base uneven layer. In the printing paper having a transparent receiving layer formed on the base, the base uneven layer has an average height difference between the convex part and the concave part in the range of 25 to 45 μm, and the formation density of the convex part or / and the concave part is and being in the range of 20 to 500 pieces / cm ^2, also the water-based ink layer is 60 to 80 parts by weight of diglycerin, and water 40 to 20 parts by weight (the total of both 100 parts by weight), It is formed by a water-based ink containing 3 to 9 parts by weight of calcium carbonate with respect to 100 parts by weight of diglycerin and water in total.

Moreover, the underlying uneven layer has an average density of formation of projections or / and recesses, characterized in that in the range of 150 to 190 pieces / cm ^2.

  Moreover, the said base uneven | corrugated layer contains a cold water powder and a 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 peak in the particle size range of 20 to 30 μm in the particle size distribution, and the average particle size of the calcium carbonate powder is 3 to 5 μm. It is characterized by.

  In the first to tenth printing papers, the paper base material is Japanese paper.

  Further, the base uneven layer is formed at least in a portion where the pattern layer is formed.

  In addition, a pattern layer is formed on at least the base uneven layer of the printing paper.

  According to the printing paper of the present invention, a base uneven layer is partially formed on a paper base material, and a transparent receiving layer is formed on the base uneven layer, for example, like a painting by Daikan Yokoyama By using the texture of Japanese paper, etc., it is possible to handle works that are drawn with a rock paint only in a certain part.

  Also, by making the average height difference between the convex part and concave part of the underlying concave and convex layer and the formation density of the convex part or / and the concave part within a specific range, the pattern layer itself can express the irregularities of rock-like tone, and more authentic It is possible to obtain a high-quality reproduction with a texture that is unique to rock paint.

  Furthermore, it is possible to use them according to the texture of the original picture, and the width of the reproduction of the rock paint will be expanded.

  According to the second, fourth and sixth printing papers of the present invention, the water content in the paper is kept constant by further providing a transparent water-based ink layer on the paper base ( Moisture retention) prevents paper curling. Therefore, for example, when a duplicate image is printed by an ink jet printer or the like, the obstacle such as the head hitting the paper is reduced, and the output becomes more stable.

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

  FIG. 1 is a sectional view schematically showing a part of a reproduction using the first, third, fifth, seventh and ninth printing sheets of the present invention. The base uneven layer, 3 is a receiving layer, and 4 is a pattern layer. Note that the printing paper 6 according to the present invention is a combination of the paper substrate 1, the base uneven layer 2, and the receiving layer 3.

  FIG. 2 is a cross-sectional view schematically showing a part of a duplicate image using the second, fourth, sixth, eighth and tenth printing papers of the present invention. The base uneven layer, 3 is a receiving layer, 4 is a pattern layer, and 5 is a water-based ink layer. Note that the printing paper 6 of the present invention is a combination of the paper base material 1, the base uneven layer 2, the receiving layer 3, and the water-based ink layer 5.

  As shown in the figure, the reproduced image of the present invention includes a base uneven layer 2 partially formed on a paper substrate 1, a transparent receiving layer 3 formed on the base uneven layer 2, and a base uneven layer. 1st, 3rd, 5th, 7th and 9th duplicates having a picture layer 4 formed on a transparent receiving layer 3 on 2 and a transparent water-based ink formed on a paper substrate 1 A layer 5, a base uneven layer 2 partially formed on the water-based ink layer 5, a transparent receiving layer 3 formed on the base uneven layer 2, and a transparent receiving layer 3 on the base uneven layer 2 There are second, fourth, sixth, eighth and tenth duplicates having the pattern layer 4 formed in the above.

[Paper base]
Since the water-based ink is preferably used when producing the reproduction of the present invention, the paper substrate 1 of the first, third, fifth, seventh and ninth reproductions has good water absorption and is not much. Paper that does not curl is preferable, for example, art paper (high quality paper) or Japanese paper is preferable, and Japanese paper is more preferable from the viewpoint of texture. In the case of art paper (quality paper), it is most preferable that the basis weight is 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.

  Further, in the second, fourth, sixth, eighth and tenth duplicate images, since the transparent water-based ink layer 5 serving as a waterproof wall is formed on the paper substrate, the second, The basis weight of the paper base material 1 of the fourth, sixth, eighth and tenth duplicates is not particularly limited, and for example, drawing material paper (quality paper) and Japanese paper are preferable, and Japanese paper is more preferable.

[Water-based ink layer]
The water-based ink layer 5 may be made of a material having a transparency that can prevent the curling of the paper substrate 1 and can make use of the texture of the paper substrate 1. For example, a humectant (diglycerin) may be used. ) Containing an aqueous solution.

  Further, when the receiving layer 3 is also formed on the water-based ink layer 5, 60 to 80 parts by weight of diglycerin, preferably 65 to 75 parts by weight and 40 to 20 parts by weight of water, preferably 35 to 25 parts by weight. A water-based ink containing 1 part by weight (total of 100 parts by weight) and 3 to 9 parts by weight, preferably 5 to 8 parts by weight of calcium carbonate, based on 100 parts by weight of diglycerin and water Is preferred. By using such a water-based ink, the printability of the water-based ink layer 5 (easy to print and easy to dry) and the color developability of the pattern layer 4 are improved.

  The water-based ink layer 5 can be formed by a known method such as a gravure printing method, a flexographic printing method, a screen printing method, or the like.

  Furthermore, the design property can also be improved by including the glittering pigment in the water-based ink layer 5 to such an extent that the texture of the paper substrate is not lost, and partially forming the receiving layer 3 and the underlying uneven layer 2.

[Uneven surface layer]
The base uneven layer 2 is formed at least in a portion where the pattern layer 4 corresponding to the pattern of the original work is formed. As a result, it is possible to create a duplicate image using the texture of Japanese paper in a portion having the unevenness peculiar to the rock paint and other portions.

  In order to give rock texture a unique uneven feeling, in the first and second reproductions, the underlying uneven 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. It is. If this average height difference is less than 100 μm, it may not be possible to obtain a texture that has a rough texture peculiar to rock paint having a relatively rough roughness. On the other hand, when this average height difference exceeds 120 μm, the unevenness is too conspicuous, and there may be a case where a texture having the unevenness peculiar to rock paint having a relatively rough roughness cannot be obtained.

Further, in the first and second duplicated images, the base uneven layer 2 needs to have a formation density of convex portions or / and concave portions in the range of 80 to 1500 pieces / cm ² . When the formation density is less than 80 / cm ² , there may be a case where a texture having a rough surface characteristic of a rock paint having a relatively rough roughness cannot be obtained. On the other hand, if the formation density is higher than 1500 pieces / cm ² , the unevenness is excessively conspicuous, and there may be a case where the texture with the unevenness unique to rock paint having a relatively rough roughness cannot be obtained.

Furthermore, in the first and second replicated images, the base uneven layer 2 preferably has an average formation density of convex portions or / and concave portions 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.

  And in the 3rd and 4th reproduction, the foundation uneven | corrugated layer 2 needs that the average height difference of a convex part and a recessed part exists in the range of 70-90 micrometers. If this average height difference is less than 70 μm, it may not be possible to obtain a texture with a texture that is unique to rock paints with moderate roughness. On the other hand, if this average height difference exceeds 90 μm, the unevenness is too conspicuous, and there may be a case where the texture with the unevenness peculiar to rock paint having a medium roughness cannot be obtained.

In the third and fourth reproductions, substrate concavoconvex layer 2, it is necessary that the formation density of the projections or / and recesses is in the range of 80 to 800 pieces / cm ^2. When the formation density is less than 80 / cm ² , there may be a case where the texture having the unevenness peculiar to rock paint having a medium roughness cannot be obtained. On the other hand, if the formation density is higher than 800 pieces / cm ² , the unevenness is excessively conspicuous, and there may be a case where the texture with the unevenness peculiar to rock paint having a medium roughness cannot be obtained.

Further, in the third and fourth reproductions, substrate concavoconvex layer 2, the average formation density of the projections or / and recesses is preferably in the range of 370 to 410 pieces / cm ^2. As a result, it is possible to obtain a rock-like color tone that is sufficiently satisfactory for the entire reproduction.

  On the other hand, in the fifth and sixth duplicated images, the base uneven layer 2 needs to have an average height difference between the convex portions and the concave portions in the range of 80 to 95 μm. When this average height difference is less than 80 μm, it may not be possible to obtain a texture with a textured texture unique to rock paints with fine roughness. On the other hand, if this average height difference exceeds 95 μm, the unevenness is too conspicuous, and there may be a case where the texture having the unevenness peculiar to rock paint having a fine roughness cannot be obtained.

Further, in the fifth and sixth replicated images, the base uneven layer 2 needs to have a formation density of convex portions or / and concave portions within a range of 190 to 1100 pieces / cm ² . When the formation density is less than 190 pieces / cm ² , there may be a case where a texture having the unevenness peculiar to a rock paint having a fine roughness cannot be obtained. On the other hand, if the formation density is higher than 1100 pieces / cm ² , the unevenness is excessively conspicuous, and a texture with the unevenness unique to the rock paint having fine roughness may not be obtained.

Further, in the fifth and sixth replicated images, the base uneven layer 2 preferably has an average formation density of convex portions or / and concave portions within a range of 450 to 490 / cm ² . As a result, it is possible to obtain a rock-like color tone that is sufficiently satisfactory for the entire reproduction.

  In the seventh and eighth duplicate images, the base uneven layer 2 needs to have an average height difference between the convex portions and the concave portions in the range of 30 to 50 μm. If this average height difference is less than 30 μm, it may not be possible to obtain a texture with a textured surface unique to rock paints with extremely fine roughness. On the other hand, if this average height difference exceeds 50 μm, the unevenness is too conspicuous, and there may be a case where the texture having the unevenness peculiar to rock paint having an extremely thin roughness cannot be obtained.

Further, in the seventh and eighth duplicate images, the base uneven layer 2 needs to have a formation density of convex portions or / and concave portions in the range of 80 to 800 pieces / cm ² . When the formation density is less than 80 pieces / cm ² , there may be a case where a texture with the unevenness peculiar to rock paint having an extremely thin roughness cannot be obtained. On the other hand, if the formation density is higher than 800 pieces / cm ² , the unevenness is excessively conspicuous, and there may be a case where the texture having the unevenness unique to the rock paint having extremely thin roughness cannot be obtained.

Further, in the seventh and eighth duplicate images, the base uneven layer 2 preferably has an average formation density of convex portions or / and concave portions within a range of 370 to 410 pieces / cm ² . As a result, it is possible to obtain a rock-like color tone that is sufficiently satisfactory for the entire reproduction.

  In the ninth and tenth duplicates, the base uneven layer 2 needs to have an average height difference between the convex portions and the concave portions in the range of 25 to 45 μm. If this average height difference is less than 25 μm, it may not be possible to obtain a texture with the unevenness peculiar to rock paint having a much finer roughness. On the other hand, if this average height difference exceeds 45 μm, the unevenness is too conspicuous, and there may be a case where the texture with the unevenness peculiar to rock paint having a much finer roughness cannot be obtained.

In the ninth and tenth duplicates, the underlying uneven layer 2 needs to have a formation density of protrusions or / and recesses in the range of ²⁰ to 500 / cm ² . When the formation density is less than 20 pieces / cm ² , there may be a case where the texture having the unevenness peculiar to the rock paint having an extremely fine roughness cannot be obtained. On the other hand, if the formation density is more than 500 pieces / cm ² , the unevenness is excessively conspicuous, and there may be a case where the texture having the unevenness unique to the rock paint having an extremely fine roughness cannot be obtained.

Furthermore, in the ninth and tenth duplicate images, the base uneven layer 2 preferably has an average formation density of convex portions or / and concave portions in the range of 150 to 190 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]
When producing the duplicate image of the present invention, preferably the base uneven layer having the surface uneven shape as described above is a water-based base uneven layer forming screen ink containing at least ethylene vinyl acetate emulsion, cold water powder and calcium carbonate powder. It forms using.

  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 aqueous 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 liable 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 peculiar 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.

  In the case of the first and second reproductions, the cold water powder has a first peak in the particle size range of 50 to 80 μm in the particle size distribution, and the first in the particle size range of 170 to 230 μm. Those having two peaks are preferred. 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.

  In the case of the third and fourth reproductions, the cold water powder has a first peak in the particle size range of 60 to 70 μm and a particle size distribution in the range of 190 to 200 μm. Those having two peaks are preferred. 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 exists in the range of 70-90 micrometers can be stably formed with sufficient reproducibility.

  Furthermore, in the case of the fifth and sixth reproductions, the cold water powder preferably has a peak in the particle size range of 70 to 90 μm in its 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 exists in the range of 80-95 micrometers can be stably formed with sufficient reproducibility.

  In the case of the seventh and eighth reproductions, the cold water powder preferably has a peak in the particle size range of 40 to 50 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 30-50 micrometers can be stably formed with sufficient reproducibility.

  In the case of the ninth and tenth duplicates, the cold water powder preferably has a peak in the range of 20 to 30 μm in 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 exists in the range of 25-45 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.

[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, on the said base uneven | corrugated layer 2, the transparent receiving layer 3 which has the printability by an inkjet printer is provided.

  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. Moreover, since pigments such as calcium carbonate are used, there is a problem that transparency cannot be obtained.

  For this reason, when producing the reproduction of the present invention, preferably, anhydrous silica is added to the composition of the conventional receiving layer excluding the pigment, and the receiving layer 3 is formed using an aqueous receiving layer forming screen ink containing a curing agent. Form.

  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.

  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.

  The receiving layer 3 is not only partially formed in accordance with the base uneven layer 2, but also may be formed on the paper substrate 1 or the water-based ink layer 5 on which the base uneven layer 2 is not formed. is there.

[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 underlying uneven layer 2 having the unevenness of the rock paint tone can express the unevenness of the rock paint tone itself 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.

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

<Example 1>
As an example of the first reproduction of the present invention, a base uneven layer is partially formed on a Japanese paper as follows, and a transparent receiving layer is formed on the base uneven layer and on the Japanese paper on which the base uneven layer is not formed. An example in which a pattern layer is formed by an ink jet printer on a transparent receiving layer on the underlying uneven layer will be described.

[Formation of ground relief layer]
An ink for forming the base uneven layer was prepared using the following liquid A and liquid B (liquid A / liquid B = 100 parts / 30 parts), 60 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% The screen was coated on Japanese paper (special paper No. 2 paper: 110 g / m ² ) by a silk screen printing method. In the present invention, 60 to 100 mesh is suitably used as the screen plate.
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

  The cold water powder used in this experimental example has a first peak in the vicinity of a particle size of 50 to 80 μm and a second peak in the vicinity of a particle size of 170 to 230 μm in the particle size distribution.

Moreover, the average height difference of a convex part and a recessed part of the obtained base uneven | corrugated layer is 100-120 micrometers, the formation density of a convex part or / and a recessed part is 80-1500 piece / cm < ² >, and average formation of a convex part or / and a recessed part. The density was 480 to 520 / cm ² .

[Formation of receiving layer]
A receiving layer forming ink was prepared using the following liquid A, liquid B and a curing agent (isocyanate “Aquanate # 120” manufactured by Nippon Polyurethane Industry Co., Ltd.) (liquid A / liquid B / curing agent = 50 parts / 50 parts / 10 parts), 150 mesh (film thickness: 8 μm) as a screen plate, and a solid plate (100% halftone plate) were used, and the coating was applied on the base uneven layer by a silk screen printing method. 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 / Kuraray Co., Ltd.) 100 parts Hydrous 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 anhydrous silica (average particle size: 5.5 μm)
(Aerosil 380S / Nippon Aerosil Co., Ltd.) 8 parts

  Next, when a pattern layer was formed on the receiving layer on the base concavo-convex layer by an ink jet printer and the texture reproducibility was evaluated by visual observation, the pattern layer itself could sufficiently express the unevenness of the rock-like tone, and the texture of the Japanese paper A high-quality reproduction with a textured texture unique to rock paints was obtained.

<Example 2>
As an example of the second reproduction of the present invention, a transparent water-based ink layer is formed on Japanese paper as follows, a base uneven layer is partially formed on the water-based ink layer, the base uneven layer and the base An example will be described in which a transparent receiving layer is formed on a water-based ink layer on which an uneven layer is not formed, and a pattern layer is formed on the transparent receiving layer on the underlying uneven layer by an ink jet printer.

[Formation of water-based ink layer]
Using a 70% diglycerin (diglycerin 801 (manufactured by Sakamoto Yakuhin Kogyo)) aqueous solution as a water-based ink layer forming ink, a 330 mesh (film thickness: 8 μm) as a screen plate, a solid plate (100% halftone plate), Japanese paper (Japanese favorite two items paper: 110g / m ²⁾ was printed by silk screen printing method on.

[Formation of ground relief layer]
A base uneven layer was formed in the same manner as in Example 1.

The resulting base uneven layer has an average height difference of 100 to 120 μm between protrusions and recesses, a formation density of protrusions or / and recesses of 80 to 1500 / cm ² , and an average formation density of protrusions or / and recesses of The number was 480 to 520 / cm ² .

[Formation of receiving layer]
A receiving layer was formed in the same manner as in Example 1.

  Next, when a pattern layer was formed on the receiving layer on the surface having the concavo-convex shape of the base concavo-convex layer by an inkjet printer, a high-quality reproduced image having a concavo-convex feeling peculiar to rock paint was obtained as in Example 1. In addition to being obtained, the texture of the Japanese paper is not impaired, and the water content in the paper is kept constant (moisturizing properties) by providing a transparent water-based ink layer on the paper substrate. Ink jet printer output is more stable.

<Example 3>
As an example of the third reproduction of the present invention, a base uneven layer is partially formed on a Japanese paper as follows, and a transparent receiving layer is formed on the base uneven layer and the Japanese paper on which the base uneven layer is not formed. An example in which a pattern layer is formed by an ink jet printer on a transparent receiving layer on the underlying uneven layer will be described.

[Formation of ground relief layer]
An ink for forming the base uneven layer was prepared using the following liquid A and liquid B (liquid A / liquid B = 100 parts / 30 parts), 80 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% The screen was coated on Japanese paper (special paper No. 2 paper: 110 g / m ² ) by a silk screen printing method. In the present invention, 60 to 100 mesh is suitably used as the screen plate.
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

  The cold water powder used in this experimental example has a first peak in the vicinity of a particle size of 60 to 70 μm and a second peak in the vicinity of a particle size of 190 to 200 μm in the particle size distribution.

Further, the resulting substrate concavoconvex layer, the average height difference between the raised portion and the depressed portion 70～90Myuemu, the formation density of the projections or / and recesses 80 to 800 pieces / cm ^2, the average formation of projections or / and recesses The density was 370 to 410 pieces / cm ² .

[Formation of receiving layer]
A receiving layer forming ink was prepared using the following liquid A, liquid B and a curing agent (isocyanate “Aquanate # 120” manufactured by Nippon Polyurethane Industry Co., Ltd.) (liquid A / liquid B / curing agent = 50 parts / 50 parts / 10 parts), 150 mesh (film thickness: 8 μm) as a screen plate, and a solid plate (100% halftone plate) were used, and the coating was applied on the base uneven layer by a silk screen printing method. 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 / Kuraray Co., Ltd.) 100 parts Hydrous 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 anhydrous silica (average particle size: 5.5 μm)
(Aerosil 380S / Nippon Aerosil Co., Ltd.) 8 parts

  Next, when a pattern layer was formed on the receiving layer on the base concavo-convex layer by an ink jet printer and the texture reproducibility was evaluated by visual observation, the pattern layer itself could sufficiently express the unevenness of the rock-like tone, and the texture of the Japanese paper A high-quality reproduction with a textured texture unique to rock paints was obtained.

<Example 4>
As an example of the fourth reproduction of the present invention, a transparent water-based ink layer is formed on Japanese paper as follows, a base uneven layer is partially formed on the water-based ink layer, the base uneven layer and the base An example will be described in which a transparent receiving layer is formed on a water-based ink layer on which an uneven layer is not formed, and a pattern layer is formed on the transparent receiving layer on the underlying uneven layer by an ink jet printer.

[Formation of water-based ink layer]
Using a 70% diglycerin (diglycerin 801 (manufactured by Sakamoto Yakuhin Kogyo)) aqueous solution as a water-based ink layer forming ink, a 330 mesh (film thickness: 8 μm) as a screen plate, a solid plate (100% halftone plate), Japanese paper (Japanese favorite two items paper: 110g / m ²⁾ was printed by silk screen printing method on.

[Formation of ground relief layer]
A base uneven layer was formed in the same manner as in Example 3.

In the obtained base uneven layer, the average height difference between the convex portions and the concave portions is 70 to 90 μm, the formation density of the convex portions or / and the concave portions is 80 to 800 pieces / cm ² , and the average formation density of the convex portions or / and the concave portions is It was 370 to 410 pieces / cm ² .

[Formation of receiving layer]
A receiving layer was formed in the same manner as in Example 3.

  Next, when a pattern layer was formed by an ink jet printer on the receiving layer on the surface having the concavo-convex shape of the base concavo-convex layer, as in Example 3, a high-quality reproduced image having a concavo-convex feeling peculiar to rock paints. In addition to being obtained, the texture of the Japanese paper is not impaired, and the water content in the paper is kept constant (moisturizing properties) by providing a transparent water-based ink layer on the paper substrate. Ink jet printer output is more stable.

<Example 5>
As an example of the fifth reproduction of the present invention, a base uneven layer is partially formed on Japanese paper as follows, and a transparent receiving layer is formed on the base uneven layer and on the Japanese paper on which the base uneven layer is not formed. An example in which a pattern layer is formed by an ink jet printer on a transparent receiving layer on the underlying uneven layer will be described.

[Formation of ground relief layer]
An ink for forming the base uneven layer was prepared using the following liquid A and liquid B (liquid A / liquid B = 100 parts / 30 parts), 80 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% Using a screen printing method, it was coated on Japanese paper (special paper No. 2 paper: 110 g / m ² ) by a screen printing method. In the present invention, 60 to 100 mesh is suitably used as the screen plate.
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

  In addition, the cold water powder used in this experimental example has a peak in the vicinity of a particle size of 70 to 90 μm in the particle size distribution.

Moreover, the average height difference of a convex part and a recessed part of the obtained base uneven | corrugated layer is 80-100 micrometers, the formation density of a convex part or / and a recessed part is 190-1100 piece / cm < ² >, and average formation of a convex part or / and a recessed part The density was 450 to 490 / cm ² .

[Formation of receiving layer]
A receiving layer forming ink was prepared using the following liquid A, liquid B and a curing agent (isocyanate “Aquanate # 120” manufactured by Nippon Polyurethane Industry Co., Ltd.) (liquid A / liquid B / curing agent = 50 parts / 50 parts / 10 parts), 150 mesh (film thickness: 8 μm) as a screen plate, and a solid plate (100% halftone plate) were used, and the coating was applied on the base uneven layer by a silk screen printing method. 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 / Kuraray Co., Ltd.) 100 parts Hydrous 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 anhydrous silica (average particle size: 5.5 μm)
(Aerosil 380S / Nippon Aerosil Co., Ltd.) 8 parts

  Next, when a pattern layer was formed on the receiving layer on the base concavo-convex layer by an ink jet printer and the texture reproducibility was evaluated by visual observation, the pattern layer itself could sufficiently express the unevenness of the rock-like tone, and the texture of the Japanese paper A high-quality reproduction with a textured texture unique to rock paints was obtained.

<Example 6>
As an example of the sixth reproduction of the present invention, a transparent water-based ink layer is formed on Japanese paper as follows, a base uneven layer is partially formed on the water-based ink layer, the base uneven layer and the base An example will be described in which a transparent receiving layer is formed on a water-based ink layer on which an uneven layer is not formed, and a pattern layer is formed on the transparent receiving layer on the underlying uneven layer by an ink jet printer.

[Formation of water-based ink layer]
Using a 70% diglycerin (diglycerin 801 (manufactured by Sakamoto Yakuhin Kogyo)) aqueous solution as a water-based ink layer forming ink, a 330 mesh (film thickness: 8 μm) as a screen plate, a solid plate (100% halftone plate), Japanese paper (Japanese favorite two items paper: 110g / m ²⁾ was printed by silk screen printing method on.

[Formation of ground relief layer]
A base uneven layer was formed in the same manner as in Example 5.

The resulting base uneven layer has an average height difference of 80 to 100 μm between the convex portions and the concave portions, a formation density of convex portions or / and concave portions of 190 to 1100 pieces / cm ² , and an average formation density of convex portions or / and concave portions is It was 450 to 490 / cm ² .

[Formation of receiving layer]
A receiving layer was formed in the same manner as in Example 5.

  Next, when a pattern layer was formed on the receiving layer on the surface having the concavo-convex shape of the foundation concavo-convex layer by an ink jet printer, a high-quality reproduced image having a concavo-convex feeling peculiar to rock paint was obtained as in Example 5. In addition to being obtained, the texture of the Japanese paper is not impaired, and the water content in the paper is kept constant (moisturizing properties) by providing a transparent water-based ink layer on the paper substrate. Ink jet printer output is more stable.

<Example 7>
As an example of the seventh duplicate image of the present invention, a base uneven layer is partially formed on a Japanese paper as follows, and a transparent receiving layer is formed on the base uneven layer and the Japanese paper on which the base uneven layer is not formed. An example in which a pattern layer is formed by an ink jet printer on a transparent receiving layer on the underlying uneven layer will be described.

[Formation of ground relief layer]
An ink for forming the base uneven layer was prepared using the following liquid A and liquid B (liquid A / liquid B = 100 parts / 30 parts), 80 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% Using a screen printing method, it was coated on Japanese paper (special paper No. 2 paper: 110 g / m ² ) by a screen printing method. In the present invention, 60 to 100 mesh is suitably used as the screen plate.
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

  In addition, the cold water powder used in this experimental example has a peak in the vicinity of a particle size of 40 to 50 μm in its particle size distribution.

Moreover, the average height difference of a convex part and a recessed part of the obtained base uneven | corrugated layer is 30-50 micrometers, the formation density of a convex part or / and a recessed part is 80-800 piece / cm < ² >, and average formation of a convex part or / and a recessed part The density was 370 to 410 pieces / cm ² .

[Formation of receiving layer]
A receiving layer forming ink was prepared using the following liquid A, liquid B and a curing agent (isocyanate “Aquanate # 120” manufactured by Nippon Polyurethane Industry Co., Ltd.) (liquid A / liquid B / curing agent = 50 parts / 50 parts / 10 parts), 150 mesh (film thickness: 8 μm) as a screen plate, and a solid plate (100% halftone plate) were used, and the coating was applied on the base uneven layer by a silk screen printing method. 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 / Kuraray Co., Ltd.) 100 parts Hydrous 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 anhydrous silica (average particle size: 5.5 μm)
(Aerosil 380S / Nippon Aerosil Co., Ltd.) 8 parts

  Next, when a pattern layer was formed on the receiving layer on the base concavo-convex layer by an ink jet printer and the texture reproducibility was evaluated by visual observation, the pattern layer itself could sufficiently express the unevenness of the rock-like tone, and the texture of the Japanese paper A high-quality reproduction with a textured texture unique to rock paints was obtained.

<Example 8>
As an example of the eighth reproduction of the present invention, a transparent water-based ink layer is formed on Japanese paper as follows, a base uneven layer is partially formed on the water-based ink layer, the base uneven layer and the base An example will be described in which a transparent receiving layer is formed on a water-based ink layer on which an uneven layer is not formed, and a pattern layer is formed on the transparent receiving layer on the underlying uneven layer by an ink jet printer.

[Formation of water-based ink layer]
Using a 70% diglycerin (diglycerin 801 (manufactured by Sakamoto Yakuhin Kogyo)) aqueous solution as a water-based ink layer forming ink, a 330 mesh (film thickness: 8 μm) as a screen plate, a solid plate (100% halftone plate), Japanese paper (Japanese favorite two items paper: 110g / m ²⁾ was printed by silk screen printing method on.

[Formation of ground relief layer]
A base uneven layer was formed in the same manner as in Example 7.

The resulting base uneven layer has an average height difference of 30-50 μm between protrusions and recesses, a formation density of protrusions or / and recesses of 80-800 / cm ² , and an average formation density of protrusions or / and recesses is It was 370 to 410 pieces / cm ² .

[Formation of receiving layer]
A receiving layer was formed in the same manner as in Example 7.

  Next, when a pattern layer was formed by an ink jet printer on the receiving layer on the surface having the concavo-convex shape of the base concavo-convex layer, as in Example 7, a high-quality reproduced image having a concavo-convex feeling peculiar to rock paints. In addition to being obtained, the texture of the Japanese paper is not impaired, and the water content in the paper is kept constant (moisturizing properties) by providing a transparent water-based ink layer on the paper substrate. Ink jet printer output is more stable.

<Example 9>
As an example of the ninth reproduction of the present invention, a base uneven layer is partially formed on a Japanese paper as follows, and a transparent receiving layer is formed on the base uneven layer and the Japanese paper on which the base uneven layer is not formed. An example in which a pattern layer is formed by an ink jet printer on a transparent receiving layer on the underlying uneven layer will be described.

[Formation of ground relief layer]
An ink for forming a base uneven layer was prepared using the following liquid A and liquid B (liquid A / liquid B = 100 parts / 30 parts), 100 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% Using a screen printing method, it was coated on Japanese paper (special paper No. 2 paper: 110 g / m ² ) by a screen printing method. In the present invention, 60 to 100 mesh is suitably used as the screen plate.
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

  In addition, the cold water powder used in this experimental example has a peak in the vicinity of a particle size of 20 to 30 μm in the particle size distribution.

Further, the resulting substrate concavoconvex layer, the average height difference between the raised portion and the depressed portion 25～45Myuemu, the formation density of the projections or / and recesses 20 to 500 pieces / cm ^2, the average formation of projections or / and recesses The density was 150 to 190 pieces / cm ² .

[Formation of receiving layer]
A receiving layer forming ink was prepared using the following liquid A, liquid B and a curing agent (isocyanate “Aquanate # 120” manufactured by Nippon Polyurethane Industry Co., Ltd.) (liquid A / liquid B / curing agent = 50 parts / 50 parts / 10 parts), 150 mesh (film thickness: 8 μm) as a screen plate, and a solid plate (100% halftone plate) were used, and the coating was applied on the base uneven layer by a silk screen printing method. 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 / Kuraray Co., Ltd.) 100 parts Hydrous 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 anhydrous silica (average particle size: 5.5 μm)
(Aerosil 380S / Nippon Aerosil Co., Ltd.) 8 parts

  Next, when a pattern layer was formed on the receiving layer on the base concavo-convex layer by an ink jet printer and the texture reproducibility was evaluated by visual observation, the pattern layer itself could sufficiently express the unevenness of the rock-like tone, and the texture of the Japanese paper A high-quality reproduction with a textured texture unique to rock paints was obtained.

<Example 10>
As an example of the tenth duplicate image of the present invention, a transparent water-based ink layer is formed on Japanese paper as follows, a base uneven layer is partially formed on the water-based ink layer, and the base uneven layer and the base An example will be described in which a transparent receiving layer is formed on a water-based ink layer on which an uneven layer is not formed, and a pattern layer is formed on the transparent receiving layer on the underlying uneven layer by an ink jet printer.

[Formation of water-based ink layer]
Using a 70% diglycerin (diglycerin 801 (manufactured by Sakamoto Yakuhin Kogyo)) aqueous solution as a water-based ink layer forming ink, a 330 mesh (film thickness: 8 μm) as a screen plate, a solid plate (100% halftone plate), Japanese paper (Japanese favorite two items paper: 110g / m ²⁾ was printed by silk screen printing method on.

  A base uneven layer was formed in the same manner as in Example 9.

The resulting base uneven layer has an average height difference of 25 to 45 μm between the convex portion and the concave portion, a formation density of the convex portion or / and the concave portion of 20 to 500 / cm ² , and an average formation density of the convex portion or / and the concave portion is It was 150 to 190 cells / cm ^2.

[Formation of receiving layer]
A receiving layer was formed in the same manner as in Example 9.

  Next, when a pattern layer was formed by an ink jet printer on the receiving layer on the surface having the concavo-convex shape of the base concavo-convex layer, as in Example 9, a high-quality reproduced image having a concavo-convex feeling peculiar to rock paints. In addition to being obtained, the texture of the Japanese paper is not impaired, and the water content in the paper is kept constant (moisturizing properties) by providing a transparent water-based ink layer on the paper substrate. Ink jet printer output is more stable.

<Example 11>
As an example in which the receiving layer is also formed on the water-based ink layer, a transparent water-based ink layer is formed on Japanese paper as follows, and a transparent receiving layer is formed on the water-based ink layer. An example in which a pattern layer is formed on the layer by an ink jet printer will be described.

[Formation of water-based ink layer]
Into the water-based ink layer forming ink, calcium carbonate (Hokkaido Kyori Lime IIPC) was blended in a proportion shown in Tables 1 to 3 to 100 parts by weight of 55-85% diglycerin (diglycerin 801 (manufactured by Sakamoto Yakuhin Kogyo)). Using water-based ink, 350 mesh (film thickness: 8 μm) as a screen plate, solid plate (100% screen), printed on Japanese paper (special paper No. 2 paper: 110 g / m ² ) by silk screen printing did.

[Formation of receiving layer]
A receiving layer forming ink was prepared using the following liquid A, liquid B and a curing agent (isocyanate “Aquanate # 120” manufactured by Nippon Polyurethane Industry Co., Ltd.) (liquid A / liquid B / curing agent = 50 parts / 50 parts / 10 parts), 150 mesh (film thickness: 8 μm) as a screen plate, and a solid plate (100% halftone plate) were applied on the water-based ink layer by a silk screen printing method.
Liquid A: 6% PVA aqueous solution (# 224 / Kuraray Co., Ltd.) 100 parts Hydrous 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 anhydrous silica (average particle size: 5.5 μm)
(Aerosil 380S / Nippon Aerosil Co., Ltd.) 8 parts

  Next, a pattern layer was formed on the receiving layer by an ink jet printer and evaluated by the following method. The evaluation is shown in Tables 1-3. When the evaluation of the curl prevention effect was Δ or ×, no other evaluation was performed.

(1) Anti-curl effect The following criteria evaluated whether the print head of a printer contacted the edge of printing paper.
○: Printing without touching the printing paper.
Δ: Slightly contacts the edge of the printing paper, but does not affect the printing quality.
X: Touch the edge of the printing paper and affect the print quality.

(2) Adhesion The following criteria evaluated the adhesion of the receiving layer.
○: Receiving layer forming ink does not adhere to fingers even when rubbed with fingers.
Δ: When rubbed with a finger, the receiving layer forming ink slightly adheres to the finger.
X: When rubbed with a finger, the receiving layer forming ink adheres to the finger, and a part thereof peels off from the printing paper.

(3) Transparency The difference in whiteness between the part formed up to the receiving layer and the paper substrate was visually evaluated according to the following criteria.
○: There is no difference in white.
(Triangle | delta): The part formed to the receiving layer looks a little white from a paper base material.
X: The part formed up to the receiving layer looks whiter than the paper base material, and the difference in whiteness is clear.

(4) Printability The following criteria evaluated the ease of printing (ink viscosity) and the ease of drying (ink dryness) of a transparent aqueous ink layer.
○: No problem with ease of printing (ink viscosity) and ease of drying (ink drying).
Δ: Ease of printing (ink viscosity) or easiness of drying (ink drying property) is slightly bad.
X: Ease of printing (ink viscosity) or ease of drying (ink drying property) is poor.

(5) Print quality About the pattern output with the inkjet printer, the color developability and the ink bleeding were visually evaluated according to the following criteria.
○: Good color developability, no ink bleeding.
Δ: Color development is slightly inferior or ink bleeding is slightly
X: Color developability is inferior or ink bleeding occurs.

It is sectional drawing which showed typically a part of 1st, 3rd, 5th, 7th, and 9th reproduction of this invention. It is sectional drawing which showed typically a part of 2nd, 4th, 6th, 8th, and 10th 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 Water-based ink layer 6 Printing paper

Claims (33)

A printing paper having an underlying concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the concavo-convex layer, wherein the underlying concavo-convex layer is an average of convex portions and concave portions. A printing paper, wherein an altitude difference is in a range of 100 to 120 μm, and a formation density of convex portions or / and concave portions is in a range of 80 to 1500 pieces / cm ² . Printing paper having a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least a transparent receiving layer formed on the base uneven layer a is, the underlying uneven layer has an average height difference between the raised portion and the depressed portion is in the range of 100～120Myuemu, the formation density of the projections or / and recesses is in the range of 80 to 1,500 pieces / cm ² Printing paper characterized by that.   The water-based ink layer contains 60 to 80 parts by weight of diglycerin and 40 to 20 parts by weight of water (both are 100 parts by weight in total) and 3 to 9 parts by weight of carbonic acid with respect to 100 parts by weight of diglycerin and water. The printing paper according to claim 2, wherein the printing paper is formed of a water-based ink containing calcium. The underlying uneven layer, the printing paper according to any one of claims 1 to 3 mean the formation density of the projections or / and recesses, characterized in that in the range of 480 to 520 pieces / cm ^2.   The printing paper according to any one of claims 1 to 4, wherein the base uneven layer contains 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 printing paper according to claim 5, wherein the calcium carbonate powder has an average particle size of 3 to 5 μm. A printing paper having an underlying concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the concavo-convex layer, wherein the underlying concavo-convex layer is an average of convex portions and concave portions. A printing paper, wherein an altitude difference is in a range of 70 to 90 μm, and a formation density of convex portions or / and concave portions is in a range of 80 to 800 pieces / cm ² . Printing paper having a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least a transparent receiving layer formed on the base uneven layer a is, the underlying uneven layer has an average height difference between the raised portion and the depressed portion is in the range of 70～90Myuemu, the formation density of the projections or / and recesses is in the range of 80 to 800 pieces / cm ² Printing paper characterized by that.   The water-based ink layer contains 3 to 9 parts by weight of calcium carbonate based on 60 to 80 parts by weight of diglycerin and 40 to 20 parts by weight of water (both are 100 parts by weight in total) and 100 parts by weight of diglycerin and water in total. And a water-based ink containing the printing paper according to claim 8. The underlying uneven layer, the printing paper according to any one of claims 7 to 9 mean the formation density of the projections or / and recesses, characterized in that in the range of 370 to 410 pieces / cm ^2.   The printing paper according to any one of claims 7 to 10, wherein the base uneven layer contains 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 60 to 70 μm and a second peak in the particle size range of 190 to 200 μm in the particle size distribution. The printing paper according to claim 11, wherein the calcium carbonate powder has an average particle size of 3 to 5 μm. A printing paper having an underlying concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the concavo-convex layer, wherein the underlying concavo-convex layer is an average of convex portions and concave portions. A printing paper, wherein an altitude difference is in a range of 80 to 95 μm, and a formation density of convex portions or / and concave portions is in a range of 190 to 1100 pieces / cm ² . Printing paper having a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least a transparent receiving layer formed on the base uneven layer a is, the underlying uneven layer has an average height difference between the raised portion and the depressed portion is in the range of 80～95Myuemu, the formation density of the projections or / and recesses is in the range of 190 to 1100 pieces / cm ² Printing paper characterized by that.   The water-based ink layer contains 3 to 9 parts by weight of calcium carbonate based on 60 to 80 parts by weight of diglycerin and 40 to 20 parts by weight of water (both are 100 parts by weight in total) and 100 parts by weight of diglycerin and water in total. The printing paper according to claim 14, wherein the printing paper is formed with a water-based ink containing. The printing paper according to any one of claims 13 to 15, wherein the base uneven layer has an average formation density of convex portions and / or concave portions within a range of 450 to 490 / cm ² .   The printing paper according to any one of claims 13 to 16, wherein the foundation uneven layer contains cold water powder and calcium carbonate powder.   The cold water powder has a particle size of 300 μm or less, has a peak in the particle size range of 70 to 90 μm in the particle size distribution, and the calcium carbonate powder has an average particle size of 3 to 5 μm. The printing paper according to claim 17. A printing paper having an underlying concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the concavo-convex layer, wherein the underlying concavo-convex layer is an average of convex portions and concave portions. A printing paper, wherein an altitude difference is in a range of 30 to 50 μm, and a formation density of convex portions or / and concave portions is in a range of 80 to 800 pieces / cm ² . Printing paper having a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least a transparent receiving layer formed on the base uneven layer a is, the underlying uneven layer has an average height difference between the raised portion and the depressed portion is in the range of 30 to 50 [mu] m, the formation density of the projections or / and recesses is in the range of 80 to 800 pieces / cm ² Printing paper characterized by that.   The water-based ink layer contains 3 to 9 parts by weight of calcium carbonate based on 60 to 80 parts by weight of diglycerin and 40 to 20 parts by weight of water (both are 100 parts by weight in total) and 100 parts by weight of diglycerin and water in total. The printing paper according to claim 20, wherein the printing paper is formed of a water-based ink containing The underlying uneven layer, the printing paper according to any one of claims 19 to 21 average formation density of the projections or / and recesses, characterized in that in the range of 370 to 410 pieces / cm ^2.   The printing paper according to any one of claims 19 to 22, wherein the base uneven layer contains cold water powder and calcium carbonate powder.   The cold water powder has a particle size of 300 μm or less, and in its particle size distribution, has a peak in the range of 40 to 50 μm, and the average particle size of the calcium carbonate powder is 3 to 5 μm. The printing paper according to claim 23. A printing paper having an underlying concavo-convex layer partially formed on a paper substrate and at least a transparent receiving layer formed on the concavo-convex layer, wherein the underlying concavo-convex layer is an average of convex portions and concave portions. A printing paper, wherein an altitude difference is in a range of 25 to 45 μm, and a formation density of convex portions or / and concave portions is in a range of ²⁰ to 500 / cm ² . Printing paper having a transparent water-based ink layer formed on a paper substrate, a base uneven layer partially formed on the water-based ink layer, and at least a transparent receiving layer formed on the base uneven layer a is, the underlying uneven layer has an average height difference between the raised portion and the depressed portion is in the range of 25～45Myuemu, the formation density of the projections or / and recesses is in the range of 20 to 500 pieces / cm ² Printing paper characterized by that.   The water-based ink layer contains 3 to 9 parts by weight of calcium carbonate based on 60 to 80 parts by weight of diglycerin and 40 to 20 parts by weight of water (both are 100 parts by weight in total) and 100 parts by weight of diglycerin and water in total. 27. The printing paper according to claim 26, wherein the printing paper is formed with a water-based ink containing. The underlying uneven layer, the printing paper according to any one of claims 25 to 27 average formation density of the projections or / and recesses, characterized in that in the range of 150 to 190 pieces / cm ^2.   The printing paper according to any one of claims 25 to 28, wherein the base uneven layer contains cold water powder and calcium carbonate powder.   The cold water powder has a particle size of 300 μm or less, has a peak in the range of 20 to 30 μm in particle size distribution, and the calcium carbonate powder has an average particle size of 3 to 5 μm. The printing paper according to claim 29.   The printing paper according to any one of claims 1 to 30, wherein the paper base is Japanese paper.   The printing paper according to any one of claims 1 to 31, wherein the base uneven layer is formed at least in a portion where a pattern layer is formed.   33. A duplicate image, wherein a pattern layer is formed on at least the foundation uneven layer of the printing paper according to any one of claims 1 to 32.

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