JP3383002B2 - Relief printed matter and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relief printed matter and a method for producing the same, and more particularly to a relief painting and a method for producing the relief painting which can easily express the sensation of oil paint or acrylic painting.

[0002]

2. Description of the Related Art Oil paintings and acrylic paintings have a unique sensation different from watercolor paintings because of the swelling of paint on the canvas. For this reason, when an oil painting or the like is duplicated by ordinary printing, the duplicate lacks bulge, and thus gives a thinner impression than the original oil painting. Therefore, relief paintings have been created as duplicates that can express the unevenness that is close to the original oil painting. In this relief painting, after printing a picture such as an oil painting on the paper by a normal printing method, the metal plate having the unevenness on the surface is pressed to bend the paper itself to form the unevenness. It is a thing. Since the paper itself has irregularities, the two-dimensionally printed pattern appears to be partially raised, and it is possible to express the sensation of the original oil painting.

[0003]

As described above, in the conventional relief painting, the unevenness is formed on the paper by the pressing force of the metal plate. Therefore, it is necessary to prepare a relief plate for forming irregularities in addition to a normal printing plate for printing a picture of a painting. Usually, etching processing is performed on the metal plate based on this relief plate,
The pattern on the relief plate will be transferred to the metal plate.
However, creating this relief version is a very laborious task. That is, it is necessary for a skilled worker to decide which part is to be convex and which part is to be concave while looking at the original oil painting, and manually draw up the relief plate. Therefore, in order to faithfully express the touch of the original oil painting, a great deal of time will be spent only in the work of creating the relief plate.

On the other hand, in recent years, interest in paintings has been rapidly increasing, and demand for lithographs is increasing. For this reason, it is desired to supply relief paintings on a commercial basis in a short time and without effort.
There is also a demand for a technique capable of easily performing relief printing not only on paintings but also on printed matter such as photographs.

Therefore, an object of the present invention is to provide a relief printed matter which can be easily produced on a commercial basis and a method for producing the same.

[0006]

SUMMARY OF THE INVENTION (1) the first invention constitutes a printing layer pattern is printed, and the transparent resin layer formed on the surface of the printing layer by a relief print, picture When the concentration of is divided into multiple levels,
Thickness of the transparent resin layer formed in the pattern part belonging to the dark stage
The transparent resin layer is adjusted to the density value of the pattern so that the thickness becomes thicker.
It has a step structure with a corresponding thickness.
It

(2) In the second invention of the present application, a pattern is printed.
Printed layer and transparent resin layer formed on the surface of this printed layer
By configuring the relief printout with
Patterns that belong to a less dense stage when divided into stages
So that the thickness of the transparent resin layer formed on the part becomes thicker
The transparent resin layer has a thickness corresponding to the density value of the pattern.
It has a difference structure.

(3) The third invention of the present application is the above-mentioned first or second invention.
Is a relief printed matter according to the second invention, in which the pattern is
Printed with several kinds of ink, the thickness of the transparent resin layer
Is determined based on the density value of the specific ink
It was done like this.

(4) A fourth invention of the present application is a method for producing a relief printed matter, wherein a printing plate is produced on the basis of an image having gradation and a pattern having gradation is printed by using this printing plate. Set the first step and the predetermined reference density value,
The area where the density value is higher than the standard density value is increased.
A second step of forming a relief plate as a region, a third step of forming a base transparent resin layer on the entire surface of the printed matter obtained by the first step, and a base transparent film using the relief plate.
The relief transparent layer is formed on the upper surface of the resin layer in the raised area.
The fourth step of forming the bright resin layer is performed.

(5) A fifth invention of the present application is a relief printed matter.
Printing based on images with gradation in the creation method of
Create a plate and print a pattern with gradation using this printing plate.
Set the first step of printing and a predetermined reference density value,
Areas with density values lower than the standard density value
The second stage and the first stage of creating the relief plate for the area
Form a base transparent resin layer on the entire surface of the printed material obtained by the floor
Using the third stage of formation and the relief plate, the base is transparent
The relief transparent layer is formed on the upper surface of the resin layer in the raised area.
The fourth step of forming the bright resin layer is also performed.
Of.

(6) The sixth invention of the present application is the above-mentioned fourth invention.
In the method for producing a relief printed matter according to the fifth invention
Then, in the second step, setting multiple reference density values
Create more relief plates, and in the fourth stage,
Multiple relief transparent resin by using relief plate
The layers are formed one after another.

(7) A seventh invention of the present application is a relief printed matter.
In the creation method of, based on the color image with gradation
Create multiple color separation printing plates, and
Print a color pattern with gradation using different colors of ink
For the first step and each of the multiple color separation printing plates
Set a predetermined reference density value, and
Area with a density value higher than the reference density value.
Defined as the target area, and combining these target areas
Create a relief plate with the obtained area as the heap area
The second stage of printing and the printed matter obtained by the first stage
The third step of forming the base transparent resin layer on the entire surface,
Using the half board, the height on the upper surface of the base transparent resin layer
A fourth method for forming a relief transparent resin layer on the raised area.
The steps are:

(8) An eighth invention of the present application is a relief printed matter.
In the creation method of, based on the color image with gradation
Create multiple color separation printing plates, and
Print a color pattern with gradation using different colors of ink
For the first step and each of the multiple color separation printing plates
Set a predetermined reference density value, and
Area with a density value lower than the reference density value.
Defined as the target area, and combining these target areas
Create a relief plate with the obtained area as the heap area
The second stage of printing and the printed matter obtained by the first stage
The third step of forming the base transparent resin layer on the entire surface,
Using the half board, the height on the upper surface of the base transparent resin layer
A fourth method for forming a relief transparent resin layer on the raised area.
The steps are:

(9) The ninth invention of the present application is the above-mentioned seventh invention.
In the method for producing a relief printed matter according to the eighth invention
Divide the pattern on the color image into multiple closed areas, and
One color separation plate or multiple color separation plates for each area
To select the target area for the selected color separation printing plate.
A relief version is created by creating
Is.

(10) The tenth invention of the present application is the above-mentioned seventh to seventh inventions .
In the method for producing a relief printed matter according to the ninth invention,
By setting multiple reference density values in the second stage,
Create multiple relief plates for one color separation printing plate,
In the fourth stage, multiple relief plates are used to
A number of relief transparent resin layers are formed in sequence.
It is a thing.

(11) The eleventh invention of the present application provides the above-mentioned first to first inventions .
Relief printed matter or a method for producing the same according to the tenth invention
In, as a transparent resin layer, UV curable resin, thermosetting
Type resin or electron beam curable resin
Of. (12) The twelfth invention of the present application is the above-mentioned fourth to tenth inventions.
In the method for producing a relief printed matter according to
The process of forming the
In the light resin layer forming process, the relief transparent resin layer forming process is performed.
Use a screen with a finer mesh than usual
It was done. (13) The thirteenth invention of the present application is the above-mentioned fourth to tenth inventions.
In the method for producing a relief printed matter according to
The process of forming the
As the resin for the light resin layer, the relief transparent resin layer
Use a resin with a lower viscosity before curing than
It is a scam.

[0017]

[Operation] The first feature of the relief printed product according to the present invention is that a transparent resin layer having irregularities is formed on the surface of the printed layer on which a pattern is printed. In the conventional relief printed matter, the paper itself has been subjected to uneven processing. On the other hand, in the relief printed material of the present invention, the paper itself is kept flat, and unevenness is expressed by the transparent resin layer formed on the surface thereof. The second feature of the relief printed product according to the present invention is that the thickness of the transparent resin layer is changed according to the density value of the pattern. In other words, the thickness of the transparent resin layer corresponds to the pattern printed on the paper.

The inventor of the present application has found that a relief printed material having such two features can express the touch of unevenness of the original image fairly faithfully. Since the transparent resin layer is a transparent layer, the observer of this painting will see the pattern printed on the plane through the transparent resin layer. If a pattern is printed on the surface of the transparent resin layer having an uneven shape, it can be easily imagined that a touch of the unevenness of the original image such as an oil painting will be expressed. However, the inventor of the present application has discovered a phenomenon in which a planar pattern printed on the inner side of the transparent resin layer looks as if it is printed on the surface of the transparent resin layer having irregularities. Therefore, when the original original image is an oil painting, the swelling of the transparent resin layer appears to swell the oil paint of the color of the pattern printed on the base.

As far as the inventor of the present invention knows, no report has been made on such a phenomenon. Therefore, it is difficult at present to explain such a phenomenon theoretically, but the inventor of the present application believes that it is an illusion based on the human pattern recognition function. Such a phenomenon does not occur unless the relief printed material has the above-described two features. That is, the first feature that "the transparent resin layer having irregularities is formed on the flat printed surface" is not sufficient, and "the thickness of the transparent resin layer corresponds to the printed pattern". Such a phenomenon occurs only when the second feature "" is provided.

The production of such a relief printed matter can be easily performed by using a printing method. That is, first, in the first step, an image with gradation is printed on a flat paper by a normal printing method. Subsequently, in the second stage, a relief plate showing "a raised portion" is created, which can be easily created by binarizing an image having gradation. For example, when the gradation image is represented by the density value of 0 to 100%, the reference density value is set to 50%, and the area having the density value of 50% or more and the area having the density value of less than 50% are set. The area with a density value of 50% or more is divided into
You can create a relief version of In this way, if the relief plate is created by binarizing the original gradation image, a predetermined area corresponding to the pattern of the original gradation image is raised, and the second characteristic described above is used. Can be satisfied. In the subsequent third step, a base transparent resin layer is formed on the entire printing surface, and in the fourth step,
If the relief transparent resin layer is partially formed using the relief plate, it becomes possible to produce a desired relief print.

[0021]

Example §1. Basic Structure of Relief Painting According to the Present Invention Hereinafter, the present invention will be described based on illustrated embodiments. Here, an example of a relief painting based on a painting will be described. FIG. 1 (a) is a top view of a relief painting according to an embodiment of the present invention, and FIG. 1 (b) is a side sectional view of the relief painting shown in FIG. 1 (a) taken along the section line XX. . Figure 1
As shown in (a), this relief painting has a pattern consisting of a double circle pattern and a triangular pattern. Here, it is assumed that such a pattern is represented by a density value of 0 to 100%, and in the example shown in FIG. 1 (a), the density values in the circle outside the double circle pattern and in the triangle pattern are The following description will be continued on the assumption that the density value in the circle inside the double circle pattern is 60% and 90%.

As shown in FIG. 1 (b), this relief painting is composed of a printing layer 10 and a transparent resin layer 20. The printing layer 10 includes the paper 11 and the ink layer 12.
The transparent resin layer 20 is composed of a base transparent resin layer 21 and a relief transparent resin layer 22. The ink layer 12 is a layer formed by printing the pattern shown in FIG. 1 (a), and the actual size thereof is much thinner than other layers, but here, for convenience of explanation,
It is drawn ignoring the actual size ratio. In the case of this embodiment, the halftone dot density 60
%, The dot printing is performed, and the pattern area having a density value of 90% is printed with a dot density of 90%.

The base transparent resin layer 21 and the relief transparent resin layer 22 are both layers made of transparent resin. As will be described later, if an ultraviolet curable resin, a thermosetting resin, an electron beam curable resin, or the like is used as the transparent resin, it can be formed conveniently by using a printing method. The base transparent resin layer 21 is formed on the entire surface of the paper 11, whereas the relief transparent resin layer 22 is formed only in a specific area based on the density value of the pattern printed by the ink layer 12, and The thickness varies depending on the concentration value.

The relationship between the thickness of the transparent resin layer 20 and the pattern is
It can be understood by comparing the pattern pattern shown in the top view of FIG. 1 (a) with the transparent resin layer 20 shown in the side sectional view of FIG. 1 (b). The transparent resin layer 20 corresponding to the region having the density value of 90% is thickest, and the transparent resin layer 2 corresponding to the region having the density value of 60%.
0 is the next thickest, and the transparent resin layer 20 corresponding to the region having a density value of 0% is the thinnest (consisting only of the base transparent resin layer 21). Thus, the thickness of the transparent resin layer 20 depends on the density value of the pattern.

Now, the picture pattern shown in FIG. 1 (a) is a simple pattern consisting of three areas with density values of 0%, 60% and 90%. However, in a gradation image such as an actual oil painting or acrylic painting, the density value variation is generally larger. Theoretically, when the concentration value changes steplessly, the thickness of the transparent resin layer 20 can also be changed steplessly, but the transparent resin layer 20 whose thickness changes steplessly is actually used. It is not easy to form. As will be described later, the transparent resin layer 20 is formed by a printing method, and the number of times of printing increases as the variation in thickness increases. Therefore, in practice, a predetermined reference density value is set, the density value range of 0 to 100% is divided into a plurality of ranges with the reference density value as a boundary, and a pattern is selected depending on which range the density value belongs to. It is preferable that the transparent resin layer is divided into a plurality of closed regions and the same closed region is formed with a transparent resin layer having the same thickness.

For example, consider a design as shown in FIG. This pattern has finer gradation than the pattern shown in Fig. 1 (a), and the variation of the density value is 0%, 20
%, 30%, 55%, 60%, 65%, 70%, 75
%, 80%, 100% in 10 steps. In such a case, it is possible to change the thickness of the transparent resin layer 20 in 10 steps, but since the number of times of printing increases, the creation work becomes complicated. Therefore, for example, 50 is set as the reference density value.
% And 80% are set, and a first density value range that satisfies 0% ≦ x <50%, a second density value range that satisfies 50% ≦ x <80%, and 80% ≦ By defining a third density value range such that x ≦ 100% and defining a closed region that belongs to the same density value range, both inside the circle outside the double circle pattern and inside the triangle pattern are 2 belongs to the density value range, the circle inside the double circle pattern belongs to the third density value range, and all other parts belong to the first density value range. , Can be treated as the same pattern as the pattern shown in FIG. In this case, the transparent resin layer having the same thickness is formed in the same closed region.

When the relief picture having the structure shown in FIG. 1 (b) is observed from the surface, the pattern of the flat ink layer 12 as the base can be seen through the transparent resin layer 20. However, due to the above-mentioned illusion phenomenon, the ink layer 12 looks as if formed on the surface of the transparent resin layer 20. That is, if the original image is an oil painting, the swelling of the transparent resin layer 20 looks like the swelling of an actual oil paint. Moreover, since a uniform luster is obtained on the whole, the painting gives an extremely natural impression like a real oil painting or acrylic painting. This is because the raised surface of the relief transparent resin layer 22 and the flat surface of the base transparent resin layer 21 give the same gloss feeling. As described above, the base transparent resin layer 21 plays an important role in giving a uniform glossy feeling as a whole.

Although the monochrome relief painting has been described above, the oil painting and the acrylic painting are actually gradation images of color, and the present invention is applied to the color relief painting. It seems to be many. in this case,
The ink layer 12 is printed with a plurality of types of ink (usually, three types of ink corresponding to the three primary colors of yellow Y, magenta M, and cyan C, or four types of ink with black K added thereto). However, the thickness of the transparent resin layer 20 may be determined based on the density value of the specific ink in each closed region. For example, the thickness of a certain closed area is determined based on the density value of yellow Y, and the thickness of another closed area is determined based on the density value of magenta M. How to handle such a color relief painting will be described in detail later in the description of the creating method.

§2. Method for Creating Relief Painting According to the Present Invention Next, a method for creating a relief painting according to the present invention will be described. FIG. 3 is a flowchart showing the basic procedure of this creating method. As shown in this flow chart, the production method is roughly divided into four steps S1 to S4. Here, for convenience of description, first, an example of creating a monochrome relief painting will be described.

First, in step S1, a printing plate is created on the basis of a gradation image and a pattern having gradation is printed. Here, the gradation image is an original image usually created by a painter, such as an oil painting or an acrylic painting that is the basis of a relief painting. Further, the printing plate means an ink layer 12 on the paper 11.
Refers to a plate for use in printing to form a. For example, when an original image composed of a pattern as shown in FIG. 2 is prepared, a printing plate in which halftone dots having densities indicated by respective% values are formed for each closed region is prepared. It Then, printing on the paper 11 is performed using this printing plate. This printing may be performed by any method, but in the present embodiment, the following description will be continued assuming that a general offset printing is performed. As a result of performing offset printing, a gradation image as shown in FIG.
It will be formed as the upper ink layer 12. Thus, in step S1, the print layer 10 shown in FIG. 1B is created.

In the following step S2, the reference density value is set, the gradation image is converted into a binary image, and the relief plate is created. In the above example, two reference density values, 50% and 80%, were set, but here,
First, a case where a single reference density value of 50% is set will be described. Which value to set the reference density value is left to the judgment of the operator. The setting of this reference density value is an element that determines the level of adjustment such as "which portion of the pattern in the gradation image is raised." Therefore, whether or not the raised state close to the original image can be reproduced depends on the setting of the reference density value. If the reference density value is set to 50% for the design shown in FIG. 2 and this design is divided into two regions, a region having a density value of less than 50% and a region having a density value of 50% or more, as shown in FIG. A binary image can be obtained.
In the case of creating a monochrome relief painting, the binary image thus obtained can be used as it is as the relief plate 31. In the example shown in FIG. 4, the hatched area is an area having a density value of 50% or more, and the white background area is an area having a density value of less than 50%.

In the next step S3, the base transparent resin layer 21 is formed on the entire surface of the pattern printed in step S1. That is, as shown in the side sectional view of FIG. 5, the base transparent resin layer 21 is formed on the entire surface of the printed layer 10. If a transparent resin such as an ultraviolet curable resin, a thermosetting resin, or an electron beam curable resin is used, it is convenient because the transparent resin layer can be formed by a printing method. In this embodiment, a transparent resin layer is formed by screen printing using a silk screen using an ultraviolet curable resin. The base transparent resin layer 21 is
Since it needs to be formed on the entire surface, screen printing is performed using a solid plate that allows ink to penetrate the entire surface. That is, a solid plate made of a silk screen is placed on the upper surface of the printing layer 10, a solution type ultraviolet curable resin is applied thereon, and the solution type resin is used in place of ink for screen printing. After printing, the solid plate is removed, and the base transparent resin layer 21 uniformly applied on the printing layer 10 is irradiated with ultraviolet rays to be cured.

Finally, in step S4, the relief transparent resin layer 22 is partially formed on the upper surface of the base transparent resin layer 21 using the relief plate 31. The side sectional view of FIG. 6 shows the relief transparent resin layer 22 formed by screen printing using the relief plate 31 shown in FIG. 4 as a positive plate. That is, a silk screen is prepared so that the ink penetrates only in the hatched area in FIG. 4, printing is performed using a solution type UV curable resin instead of ink, and the resin is cured by UV irradiation. A relief painting having the structure shown in FIG. 6 can be created.

After all, in the original picture shown in FIG. 2, a relief picture in which only a region having a density value of 50% or more is raised is created. To reduce the raised portion, the set value of the reference density value may be changed. For example, for the design shown in FIG. 2, the reference density value is set to 80%,
If this pattern is divided into two regions, a region having a density value of less than 80% and a region having a density value of 80% or more, a binary image as shown in FIG. 7 can be obtained. Then, by using this binary image as the positive relief plate 32 and performing the step S4, a relief painting having the structure shown in the side sectional view of FIG. 8 is created. In the relief painting shown in FIG. 6, the double circle pattern and the triangular pattern were raised, but FIG.
In the relief painting shown in, only the pattern of the inner circle of the double circle is raised.

In both the structure shown in FIG. 6 and the structure shown in FIG. 8, the transparent resin layer 20 has a height of two steps. On the other hand, as shown in the structure of FIG. 1 (b), the transparent resin layer 20
To create a relief painting with three levels of height,
Relief plate 31 shown in FIG. 4 and relief plate 3 shown in FIG.
The process of step S4 may be performed by using both of them. That is, first, a transparent resin layer is printed by using the relief plate 31 shown in FIG. 4 to obtain the structure shown in FIG. Then, the relief plate 32 shown in FIG. 7 is placed on the structure shown in FIG. 6, and the transparent resin layer is printed again. As shown in FIG. 1 (b), three levels of height are obtained. It is possible to form the transparent resin layer 20 having. Note that the relief plate 3 to be used is reversed in order and the relief plate 3 shown in FIG.
The same structure can be obtained by performing printing using No. 2 and then performing printing using the relief plate 31 shown in FIG. However, if the order is reversed in this way, as shown in FIG. 9, the outline portion of the transparent resin layer (shown by a broken line in the figure) in the small area formed earlier is replaced by the transparent resin layer in the large area formed later. It is crushed and the step becomes slower (Fig. 1 (b)
You can understand the difference by comparing Fig. 9 with Fig. 9).

The silk screen used in the screen printing in steps S3 and S4 is "220 mesh silk screen" in step S3.
It is best to use (a screen in which 220 threads are woven in 1 inch) and use a "100 mesh silk screen" (screen in which 100 threads are woven in 1 inch) in step S4. Met. That is, the silk screen used for forming the base transparent resin layer 21 in step S3 preferably has a finer mesh than the silk screen used for forming the relief transparent resin layer 22 in step S4. This is because when the base transparent resin layer 21 is formed, it is necessary to perform uniform printing on the entire surface, so it is more suitable to apply the resin uniformly using a fine mesh. This is because it is preferable to apply the resin discretely by using a coarse mesh, because it is necessary to partially raise the printing when forming the.
It is also preferable to change the viscosity of the resin used before curing. That is, a resin having a relatively low viscosity is used as the base transparent resin layer 21 that requires uniform printing on the entire surface, and a resin having a relatively high viscosity is used as the relief transparent resin layer 22 that needs to be partially raised. Is preferably used. In screen printing, the resin as ink is spread over the entire surface of the silk screen with a spatula, so the actually formed transparent resin layer has a structure in which the contour portion is slightly raised (illustrated in the figure. Absent). When the original is an oil painting, it is better to use a resin containing a gloss ink component suitable for producing gloss, and when the original is an acrylic image, a matte ink component with a reduced gloss is used. It is better to use a resin containing it.

§3. Method for Creating Color Relief Painting According to the Present Invention The method for creating a monochrome relief painting has been described above. However, in reality, an oil painting or an acrylic painting is a color gradation image. It seems to be more often applied to paintings. The method for creating a color relief painting has the same basic principle as the above-described method for creating a monochrome relief painting, but a simple concrete example will be described here.

Now, consider a case where a color image O having gradations as shown in FIG. 10A is prepared. Specifically, this color image O is an oil painting drawn by a painter. The procedure for creating a color relief painting also consists of the four steps shown in the flow chart of FIG.
First, in step S1, a printing plate is created based on a gradation image, and a design having gradation is printed. As the printing plate for the color image, there are usually prepared three types of color separation printing plates corresponding to the three primary colors of yellow Y, magenta M, and cyan C, or four types of color separation printing plates obtained by adding black ink K thereto. To be done. Here, it is assumed that three types of color separation printing plates Py, Pm, and Pc as shown in FIGS. 10B to 10D are created for the gradation color image O shown in FIG. To do. Here, the color separation printing plates Py, Pm, and Pc are color separation printing plates corresponding to the three primary colors of yellow Y, magenta M, and cyan C, respectively, and are images having gradation. Such a color separation printing plate can be obtained by subjecting the gradation color image O, which is the original image, to scanner decomposition. Subsequently, a gradation color image O is printed on the paper 11 by offset printing using these three color separation printing plates Py, Pm and Pc and three color inks of yellow Y, magenta M and cyan C. To be done.

In the subsequent step S2, reference density values are set for the respective colors of yellow Y, magenta M, and cyan C, and the color-separated image on each color-separated printing plate Py, Pm, Pc is a color-separated binary image. Is converted to. The reference density value can be set to the same value for each color, but normally, the optimum reference density value is set for each color separately. Here, for example, yellow Y is 70
%, 40% for magenta M, and 50% for cyan C, respectively. Then, by making such settings, as shown in FIG.
Based on the color separation printing plates Py, Pm, Pc shown in 0 (b) to (d), the color separation binary images Qy, Q shown in FIGS. 11 (a) to 11 (c).
It is assumed that m and Qc are obtained. That is, FIG. 11 (a)
The color-separated binary image Qy shown in Fig. 10 corresponds to the hatched area of the density value of 70% or more in the color-separated printing plate Py shown in Fig. 10 (b). Value image Q
m corresponds to a hatched area of a density value of 40% or more in the color separation printing plate Pm shown in FIG.
The color-separated binary image Qc shown in FIG. 11C corresponds to a hatched area of a density value of 50% or more in the color-separated printing plate Pc shown in FIG. 10D.

In the case of creating the monochrome relief painting described above, the binary image thus created could be used as it is as a relief plate, but in the case of creating a color relief painting, a plurality of color separation images are used. Since a value image will be obtained, the work of creating one relief plate by combining these is performed. This synthesizing work can be performed as follows. That is, a pattern on a color image is divided into a plurality of closed regions, and one color separation binary image or a composite binary image synthesized from a plurality of color separation binary images is applied to each closed region. All you have to do is work.

This will be shown by a concrete example. For example, in FIG.
The color image O shown in (4) is divided into four closed regions (1) to (4) as shown in FIG. Then, for each closed region, it is decided which color binary image to apply. For example, as shown in FIG. 12B, the color separation binary image Qm is applied to the closed region, the color separation binary image Qy is applied to the closed region, and the color separation binary images Qm and Qc are applied to the closed region. A composite binary image (in this example, the graphic OR of Qm and Qc
It is assumed that R) is applied and the color-separated binary image Qc is applied to the closed region. Then, the result of this synthesizing work is as shown in FIG. 12 (c), and as a result, the relief plate R as shown in FIG. 12 (d) can be prepared. Such work is specifically shown in FIG. 11 (a).
Prepare the three color-separated binary images shown in to (c) as a positive film plate, cut out the desired parts of these film plates with scissors, and arrange each cutout piece as shown in Fig. 12 (c). do it. Further, when it is necessary to obtain a logical OR with a closed area, the positive film plates may be arranged so as to overlap each other (in this example, the areas of the Qm film plate and the Qc film plate are overlapped. Just put it). 12
After the cut and paste as shown in (c) is taken, a photograph is taken of the cut and pasted, and a relief plate R as shown in (d) of the same figure can be prepared.

It is up to the operator to decide what kind of closed area division is to be performed and which color-coded binary image of each closed area is to be applied. The operator considers which part should be raised to be effective while keeping the pattern of the original color image O on his / her head, and judges which color binary image should be applied to which part. I will be going. Although this work is a relatively time-consuming work in the procedure of the method of the present invention, it is much easier than the conventional method in which a relief plate is drawn by hand.

In the next step S3, the base transparent resin layer 21 is formed on the entire surface of the pattern printed in step S1. This is just like creating a monochrome relief painting. Finally, in step S4, the relief transparent resin layer 22 is partially formed on the upper surface of the base transparent resin layer 21 using the relief plate R. This is also exactly the same as when creating a monochrome relief painting. The only difference is that the relief version R
The only difference is that it is composed of three color-separated binary images Qy, Qm, and Qc. In the color relief painting created in this way, of the pattern of the color image O having the gradation as shown in FIG. 10 (a), only the area hatched on the relief plate R of FIG. 12 (d) is shown. It will have a raised structure.

FIG. 13 is a diagram summarizing the procedure for creating the color relief painting described above. First,
A color image O (original image) having gradation is prepared, and this is decomposed by a scanner to create three color separation printing plates Py, Pm, Pc, and these three color separation printing plates Py, Pm, Pc. A pattern is printed on the paper 11 by using to form the ink layer 12 (step S1). Then, a predetermined reference density value (70
%, 40%, 50%) to set the color separation binary image Q from each of the color separation printing plates Py, Pm, Pc.
y, Qm, Qc are created, and these are combined to create a relief plate R (step S2). Actually, the color separation binary images Qy, Qm,
Instead of creating Qc, it is preferable to directly create color-separated binary images Qy, Qm, and Qc by directly decomposing a color image O having gradations by a scanner as shown by a broken line in the figure. Currently used scanner devices have a function of directly creating such color-separated binary images Qy, Qm, and Qc by setting an arbitrary reference density value. Therefore, the color-separated printing plate Py, It is easier to create the color-separated binary images Qy, Qm, and Qc together with Pm and Pc, and it is possible to obtain color separation images with high mutual registration accuracy. Subsequently, the solid plate B is prepared, and the base transparent resin layer 21 is formed by screen printing (step S3). Finally, the relief transparent resin layer 22 is formed by screen printing using the relief plate R (step S4). The color-separated binary images Qy, Qm, Q
c is a plate used only for producing the relief plate R and is not directly used in the printing process.

In color relief paintings,
A multi-stage relief transparent resin layer can be formed by using a plurality of relief plates. FIG. 14 is a diagram summarizing this procedure. The difference from the procedure shown in FIG. 13 is that by changing the setting of the reference density value for each color in two ways, a total of six color separation binary images are created, and the first relief plate R1 and the second relief plate R1 This is the point of creating the relief plate R2. That is, three color separation binary images Qy1, Qm1, and Qc1 are created based on the first setting of the reference density values of 70% for yellow Y, 40% for magenta M, and 50% for cyan C. Then, based on the second setting of the reference density values of 90% for yellow Y, 60% for magenta M, and 70% for cyan C, the three color separation binary images Qy2, Qm2, Q
Create c2. Then, the first relief plane R1 is created by combining the three color-separated binary images Qy1, Qm1, and Qc1 based on the first setting, and the three color-separated binary images Qy2 and Qy2 based on the second setting. The second relief plane R2 is created by synthesizing Qm2 and Qc2 (although the combination of the color-separated binary images for synthesizing the relief plane is not limited to such combination). . Finally, the relief plate R1 is used to form the relief transparent resin first layer 22a, and the relief plate R2 is used to form the relief transparent resin second layer 22b to form a multi-stage relief transparent resin layer. can do.

Although the present invention has been described above based on some illustrated embodiments, the present invention is not limited to these embodiments and can be implemented in various modes other than this. For example, in each of the above-described embodiments, the transparent resin layer is made thicker in the region having the higher density value. Specifically, in FIG. 1, the density value 0
%, The transparent resin layer is thicker in the region having a density value of 60%, and the transparent resin layer is thicker in the region having a density value of 90% than in the region having a density value of 60%. . However, it is not always necessary to thicken the transparent resin layer in the region with the higher density value, and conversely, it is possible to thicken the transparent resin layer in the region with the lower density value. However, oil paintings and acrylic paintings are usually drawn on white canvas (low density from the viewpoint of printing with ink) with paints of various colors (high density from the viewpoint of printing with ink). Therefore, if the thickness of the transparent resin layer is made thicker in the area with a higher density value, the area where the paint is raised in the original picture will also be raised in the relief painting, and the feeling of rise with the original picture will be increased. It is preferable for obtaining agreement. On the other hand, for an original image in which light-colored paint is raised on a black canvas, it is preferable to increase the thickness of the transparent resin layer in the region having the lower density value.

Further, in the above-described embodiment, the color separation printing plate or the color separation binary image is obtained on the film by the output of the scanner device. However, the color image O having gradation is used as the image data by the scanner device. It is also possible to perform the work of capturing and composing the relief plate from the color-separated binary image by the computer. Furthermore, in the above-described embodiment, the pattern printing on the paper 11 is performed by offset printing, and the transparent resin layer 20 is formed by screen printing.
The printing method is not limited to these. Also,
The above-mentioned embodiment is an example of a relief painting based on a painting, but the present invention can be applied to any printed matter including a relief photograph based on a photograph, so-called relief printed matter. It can be widely applied to (printed matter having relief-like irregularities formed on the surface). In addition, the "pattern" in this specification means "a pattern surrounded by a closed region", and widely includes characters and patterns.

[0048]

As described above, according to the relief printed material of the present invention, the transparent resin layer having the thickness corresponding to the density value of the pattern is formed on the printed layer on which the pattern is printed. You will be able to easily create the base.

[Brief description of drawings]

FIG. 1A is a top view of a relief painting according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view of the relief painting shown in FIG.
It is a sectional side view cut by X.

FIG. 2 is a diagram showing a design having finer 10 gradation levels than the design shown in FIG. 1 (a).

FIG. 3 is a flowchart showing a basic procedure of a method for creating a relief painting according to the present invention.

FIG. 4 shows a reference density value of 50% for the design shown in FIG.
Set this pattern to an area with a density value of less than 50%, and
It is a figure which shows the binary image (relief plane) obtained by dividing into two area | regions with the area | region of% or more.

FIG. 5 shows the base transparent resin layer 2 on the entire surface of the printed layer 10.
It is a side sectional view showing the state where 1 was formed.

6 is a side sectional view showing a relief transparent resin layer 22 formed by screen printing using the relief plate 31 shown in FIG. 4 as a positive plate.

FIG. 7 shows a reference density value of 80% for the design shown in FIG.
Set this pattern to an area with a density value of less than 80%, and
It is a figure which shows the binary image (relief plane) obtained by dividing into two area | regions with the area | region of% or more.

8 is a side sectional view showing a relief transparent resin layer 22 formed by screen printing using the relief plate 32 shown in FIG. 7 as a positive plate.

9 is a side sectional view showing a relief transparent resin layer 22 formed by performing screen printing using the relief plate 31 shown in FIG. 4 after screen printing using the relief plate 32 shown in FIG. .

FIG. 10 is a view showing an example of a color image having gradation and a color separation printing plate used for creating a color relief painting by the method according to the present invention.

11 is a color separation binary image Qy, Q created based on the color separation images on the color separation printing plates Py, Pm, Pc shown in FIG.
It is a figure which shows m and Qc.

FIG. 12 is a diagram showing an operation of dividing the color image shown in FIG. 10 into a plurality of closed regions and applying a desired color-separated binary image to each closed region to create a relief plate R.

FIG. 13 is a diagram summarizing the procedure for creating a color relief painting according to the present invention.

FIG. 14 is a diagram summarizing the procedure for forming a multi-step relief transparent resin layer by using a plurality of relief plates.

[Explanation of symbols]

10 ... Printing layer 11 ... Paper 12 ... Ink layer 20 ... Transparent resin layer 21 ... Base transparent resin layer 22 ... Relief transparent resin layer 22a ... Relief transparent resin first layer 22b ... Relief transparent resin second layer 31, 32 ... Relief version O ... Color image with gradation (original image) Py, Pm, Pc ... Color separation printing plate Qy, Qm, Qc ... Color separation binary image R, R1, R2 ... Relief version

Claims (13)

(57) [Claims] 1. A print layer having a pattern printed thereon, and a transparent resin layer formed on the surface of the print layer .
When you divide the concentration into multiple levels,
The thickness of the transparent resin layer formed on the design part to which it belongs is thicker.
So that the transparent resin layer has a step structure having a thickness corresponding to the density value of the pattern. 2. A print layer on which a pattern is printed, and this print layer
A transparent resin layer formed on the surface of the
When the concentration is divided into multiple levels,
The thickness of the transparent resin layer formed on the design part to which it belongs is thicker.
So that the transparent resin layer responds to the density value of the pattern.
Characterized by having a step structure with the same thickness.
Leaf print. 3. Relief printing according to claim 1 or 2.
On the object, the pattern is printed with multiple types of ink
The thickness of the transparent resin layer is based on the density value of the specific ink.
Relief printing characterized by being decided based on
object. 4. A first step of producing a printing plate based on an image having gradation and printing a pattern having gradation using the printing plate, and setting a predetermined reference density value, Higher than this standard density value
Relief plate with the area with density value as the heap area
A second step of forming, a third step of forming a base transparent resin layer on the entire surface of the printed matter obtained by the first step, and an upper surface of the base transparent resin layer using the relief plate.
Relief transparent resin layer in the portion of the raised area in
And a fourth step of forming a relief print product. 5. A printing plate is produced based on an image having gradation.
And print a pattern with gradation using this printing plate
It is lower than this reference density value by setting the first step and a predetermined reference density value.
Relief plate with the area with density value as the heap area
The second step of creating and the base transparent on the entire surface of the printed matter obtained by the first step.
The third step of forming a bright resin layer and the upper surface of the base transparent resin layer using the relief plate.
Relief transparent resin layer in the portion of the raised area in
And a fourth step of forming a relief print product. 6. Relief printing according to claim 4 or 5.
By setting multiple reference concentration values in the second step of the method
By creating a plurality of relief plates and using the plurality of relief plates in the fourth step,
To form multiple relief transparent resin layers one after another
A method for producing a relief printed material, characterized by: 7. A composite image based on a color image having gradation.
Create a number of color separation printing plates, and use different colors for each color separation printing plate.
Print a color pattern with gradation using the ink
Predetermined reference density for each of the 1st stage and each of the color separation printing plates
Set the value, and for each color separation printing plate,
Areas with higher density values are defined as target areas.
Therefore, the area obtained by combining these target areas
The second stage of creating a relief plate that uses the
And a base transparent layer on the entire surface of the printed matter obtained in the first step.
The third step of forming a bright resin layer and the upper surface of the base transparent resin layer using the relief plate.
Relief transparent resin layer in the portion of the raised area in
And a fourth step of forming a relief print product. 8. A composite image based on a color image having gradation.
Create a number of color separation printing plates, and use different colors for each color separation printing plate.
Print a color pattern with gradation using the ink
Predetermined reference density for each of the 1st stage and each of the color separation printing plates
Set the value, and for each color separation printing plate,
Areas with lower density values are defined as target areas.
Therefore, the area obtained by combining these target areas
The second stage of creating a relief plate that uses the
And a base transparent layer on the entire surface of the printed matter obtained in the first step.
The third step of forming a bright resin layer and the upper surface of the base transparent resin layer using the relief plate.
Relief transparent resin layer in the portion of the raised area in
And a fourth step of forming a relief print product. 9. Relief printing according to claim 7 or 8.
In the method of creating an object, the pattern on the color image is divided into a plurality of closed areas, and each closed area is divided.
Select one color separation plate or multiple color separation plates for each
Select and synthesize the target area for the selected color separation printing plate.
Relief plate is created by
How to make leaf prints. 10. The reli according to any one of claims 7 to 9.
By setting multiple standard density values in the second step in the method for creating printed materials
By preparing a plurality of relief plates for one color separation printing plate and using the plurality of relief plates in the fourth step,
To form multiple relief transparent resin layers one after another
A method for producing a relief printed material, characterized by: 11. The relief printed and creating method thereof according to any of claims 1-10, characterized in that the ultraviolet curing resin is used as the transparent resin layer, a thermosetting resin or an electron beam-curable resin, Relief printed matter or its production method. 12. A method of creating relief prints according to any one of claims 4-10, the process of forming the transparent resin layer is performed by screen printing, in the step of forming the base transparent resin layer, of the relief transparent resin layer A method for producing a relief printed material, characterized in that a screen having a finer mesh than that used in the forming step is used. 13. A method of creating relief printed matter according to any one of claims 4-10, the formation of the transparent resin layer step is performed by screen printing, as the resin for the base transparent resin layer, the relief transparent resin A method for producing a relief print, characterized in that a resin having a lower viscosity before curing than a resin for a layer is used.