JP2016068545A - Method of manufacturing original plate for engraving and method of producing print - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of easily manufacturing an original plate for engraving.SOLUTION: There is provided a method of manufacturing an original plate for engraving which comprises the steps of: manufacturing a first original plate by forming a first protrusion for printing a first portion of a painting with a 3D printer on the basis of the image data expressing the painting; and manufacturing a second original plate by forming a second protrusion for printing a second portion of the painting different from the first portion with the 3D printer on the basis of the image data.SELECTED DRAWING: Figure 2

Description

  The technology disclosed in the present specification relates to a method for producing an original for printing and a method for producing a printing. In the present specification, a technique for applying a paint to an original plate having irregularities and transferring the paint from the original plate to a sheet is called a printing method, and a picture created by the printing method is called a printing method.

  The master for printing is usually manufactured by hand carving by craftsmen and artists. Patent Document 1 discloses a technique for manufacturing an original plate by attaching a porous sheet having an appropriate outer shape corresponding to a plate image to the surface of a sheet body.

  JP 2010-179487

  The method of manufacturing an original plate by hand carving requires skilled skills and can be performed only by a limited number of people. In the technique of Patent Document 1, it is necessary to accurately process the outer shape of the porous sheet into a target shape. When printing a complicated shape, it is necessary to accurately process the outer shape of the porous sheet into the complicated shape, and such processing is extremely difficult.

  The present specification discloses a method for producing an original for printing. This method has a first step and a second step. In the first step, a first original plate is manufactured by forming a first convex portion for printing the first portion of the painting by a 3D printer based on image data representing the painting. In the second step, a second original plate is manufactured by forming a second convex portion for printing a second part of the painting different from the first part based on the image data by a 3D printer.

  In this specification, the 3D printer means a processing device that obtains a desired three-dimensional shape by curing a resin or powder. The 3D printer includes, for example, a three-dimensional molding apparatus using a method such as a hot melt lamination method, an ink jet method, a powder sintering method, and an optical modeling method. Further, the 3D printer used in the first step and the 3D printer used in the second step may be the same or different. In the above manufacturing method, the portions other than the first convex portion of the first original plate may be formed by a 3D printer, or may be formed by other methods. For example, you may form a 1st convex part in the surface of the 1st base body prepared beforehand by 3D printer. Moreover, you may form a 1st convex part and a 1st base body with 3D printer. In this case, the first convex portion may be formed before the first base body, or the first base body may be formed before the first convex portion. The same applies to the second original version.

  The master for printing has a convex part for printing. The end surface of the convex portion is a printing surface for printing. The planar shape (two-dimensional shape) of the printing surface is a complicated shape corresponding to the picture to be printed, but the cross-sectional shape of the convex portion is a simple shape. Therefore, if a two-dimensional shape of the printing surface is prepared, a convex portion for printing can be easily formed by a 3D printer.

  In the above manufacturing method, the two-dimensional shape of the first part of the painting (that is, the two-dimensional shape of the printing surface for printing the first part) can be obtained from the image data of the painting. Therefore, it is possible to easily form the first convex portion for printing the first portion using a 3D printer. That is, the first original plate can be easily manufactured. Further, the two-dimensional shape of the second part of the painting can be obtained from the image data of the painting. Therefore, the 2nd convex part for printing the 2nd part can be easily formed using a 3D printer. That is, the second original plate can be easily manufactured. As described above, according to this method, any number of originals can be easily manufactured by preparing image data of a picture. Further, by producing different original plates (first original plate and second original plate) for different parts of one painting in this way, a complicated print can be printed. For example, it is possible to print a print having a different color or pattern depending on the portion.

  The figure which shows the painting 10. FIG.   The flowchart of the method of embodiment.   The figure which shows the image data which reversed the painting 10 right and left.   The figure which shows the black layer 30. FIG.   The figure which shows the blue layer 32. FIG.   The figure which shows the yellow layer 34. FIG.   The figure which shows the green layer 36. FIG.   FIG.   The perspective view of the original edition 52. FIG.   FIG.   The perspective view of the original edition 56. FIG.   Explanatory drawing of the process printed on the paper 60 using the original 50. FIG.   Sectional drawing of the original plate of embodiment.   Sectional drawing of the original plate of a modification.

  A method of creating a replica of the painting 10 shown in FIG. 1 by the technique disclosed in this specification will be described. The painting 10 is a multicolor print. The painting 10 represents a human face, and has a contour 12, a skin part 14, an eye part 16, a nose part 18, a mouth part 20, and a decoration part 22. The outline 12 and the nose 18 are represented by the same color (black in this embodiment). The eyes 16 and the mouth 20 are represented by the same color (blue in this embodiment). The skin part 14 is represented by yellow. The decoration part 22 is represented by green. However, the overlapping part 24 where the decorative part 22 and the skin part 14 overlap is represented by yellowish green.

  The method according to the present embodiment is performed according to the flowchart of FIG. First, in step S2, image data of the painting 10 is acquired. The image data may be obtained by downloading from the Internet or the like, or may be obtained by scanning the painting 10 with a scanner or the like. Further, the image data of the painting 10 may be created by an image creation application.

  Next, in step S3, the image data is reversed left and right as shown in FIG.

  Next, in step S4, the position adjusting unit 26 is added to the image data as shown in FIG. The position adjustment unit 26 is an image showing the position and shape of a position adjustment convex portion 44 described later. The position adjustment unit 26 is disposed outside the portion showing the painting 10.

  Next, in step S6, the image data is decomposed into layers. Here, each part of the painting 10 is decomposed for each color and stored as a layer. However, the skin part 14 preserve | saves the whole including the duplication part 24 as one layer. In addition, the decoration unit 22 stores the entirety including the overlapping unit 24 as one layer. Each layer is formed so as to include the position adjustment unit 26. The positional relationship between each part of the painting 10 and the position adjusting unit 26 in each layer is not changed from the positional relationship shown in FIG. For example, the black portion (that is, the outline 12 and the nose portion 18) of the painting 10 is stored as the black layer 30 shown in FIG. The blue portion of the painting 10 (that is, the eye portion 16 and the mouth portion 20) is stored as the blue layer 32 shown in FIG. The yellow part (namely, skin part 14) of the painting 10 is preserve | saved as the yellow layer 34 shown in FIG. The green portion of the painting 10 (that is, the decoration portion 22) is stored as a green layer 36 shown in FIG. As shown in FIGS. 6 and 7, the yellow layer 34 and the green layer 36 include an overlapping portion 24 (see FIG. 1). Further, as shown in FIGS. 4 to 7, each layer 30 to 36 includes a position adjusting unit 26.

  Next, in step S8, the original 3D data is created based on the layers 30 to 36. Here, one original 3D data is created for each layer. The original 3D data is created as a shape in which convex portions for printing each layer are provided on a flat plate. For example, as shown in FIG. 8, the 3D data of the original 50 corresponding to the black layer 30 is created as a shape in which a convex portion 42 having a planar shape of the contour 12 and the nose portion 18 is formed on the flat plate 40. That is, the upper end surface of the convex portion 42 for the contour 12 has the same two-dimensional shape as the contour 12 of the black layer 30. The upper end surface of the convex portion 42 for the nose portion 18 has the same two-dimensional shape as the nose portion 18 of the black layer 30. Further, as shown in FIG. 9, the 3D data of the original plate 52 corresponding to the blue layer 32 is created as a shape in which the convex portions 42 having the planar shapes of the eyes 16 and the mouth 20 are formed on the flat plate 40. . That is, the upper end surface of the convex part 42 for the eye part 16 has the same two-dimensional shape as the eye part 16 of the blue layer 32. The upper end surface of the convex portion 42 for the mouth portion 20 has the same two-dimensional shape as the mouth portion 20 of the blue layer 32. As shown in FIG. 10, the 3D data of the original plate 54 corresponding to the yellow layer 34 is created as a shape in which the convex portion 42 having the planar shape of the skin portion 14 is formed on the flat plate 40. That is, the upper end surface of the convex portion 42 for the skin portion 14 has the same two-dimensional shape as the skin portion 14 of the yellow layer 34. Further, as shown in FIG. 11, the 3D data of the original plate 56 corresponding to the green layer 36 is created as a shape in which the convex portion 42 having the planar shape of the decorative portion 22 is formed on the flat plate 40. That is, the upper end surface of the convex portion 42 for the decorative portion 22 has the same two-dimensional shape as the decorative portion 22 of the green layer 36.

  Further, the 3D data of each of the original plates 50 to 56 has a position adjusting convex portion 44 having a planar shape of the position adjusting portion 26 on the flat plate 40. That is, when the upper surface of the flat plate 40 is viewed in plan, the position adjustment convex portion 44 has the same two-dimensional shape as the position adjustment portion 26. In addition, when the top surface of the flat plate 40 is viewed in plan, the two-dimensional relative positional relationship between the position adjustment convex portion 44 and each convex portion 42 is the position adjustment portion 26 and each portion 12 to 22 in each layer 30 to 36. Equivalent to relative positional relationship. As shown in FIG. 8, the height H <b> 1 of the position adjustment convex portion 44 is higher than the height H <b> 2 of the convex portion 42.

  Next, in step S10, the 3D data of the original 50 is input to the 3D printer, and the 3D printer is activated. Then, the 3D printer repeatedly cures the resin or the powder in layers. The master 50 is formed by the laminated hardened layer, and the master 50 is manufactured. Similarly, the original plates 52 to 56 are also manufactured. In the present embodiment, the entire original plate including the flat plate 40, the convex portion 42, and the position adjusting convex portion 44 is formed by a 3D printer.

  Next, in step S12, the painting 10 is printed using the original plates 50-56. Here, first, black paint is applied to the upper end surface of the convex portion 42 of the original 50 for the black layer 30. Next, as shown in FIG. 12, the printing paper 60 is placed on the original 50. At this time, the corner 62 of the paper 60 is brought into contact with the position adjustment convex portion 44, and then the paper 60 is brought into contact with the convex portion 42. Next, the paper 60 is pressed against the convex portion 42. As a result, the paint on the upper end surface of the convex portion 42 adheres to the paper 60, and the contour 12 and the nose 18 are printed on the paper 60. Next, similarly, the eyes 16 and the mouth 20 are printed using the blue paint and the original plate 52. Next, similarly, the skin portion 14 is printed using the yellow paint and the original plate 54. Next, similarly, the decorative portion 22 is printed using the green paint and the original plate 56. In the overlapping part 24 where the skin part 14 and the decorative part 22 overlap, since the green paint is applied on the yellow paint, the overlapping part 24 becomes yellowish green. Through the above operation, a replica of the painting 10 shown in FIG. 1 is completed.

  As described above, according to the method of the present embodiment, the master plates 50 to 56 for prints are manufactured based on the image data of the painting 10, and the replica of the painting 10 is made using the manufactured master plates 50 to 56. Can be created. Decomposing image data into layers based on the color of each part can be easily performed using an image editing application or the like. In addition, it is possible to easily generate 3D data of the convex portion 42 having a planar shape of a layer based on each layer. That is, it is easy to create 3D data of the original plates 50 to 56 based on each layer. If 3D data of each of the original plates 50 to 56 can be created, it is easy to manufacture the original plates 50 to 56 having the shape indicated by the 3D data with a 3D printer. Therefore, according to the method of the present embodiment, a replica of the painting 10 indicated by the image data can be easily created. Further, in this method, a replica of the painting 10 can be created by a printing method. According to the printing method, colors and textures different from those when printing with a laser printer or an ink jet printer can be expressed.

  Further, in this method, a plurality of original plates having the same shape can be manufactured. Therefore, it is possible to mass-produce prints using a plurality of original plates.

  Further, in this method, an original plate having a printing surface obtained by enlarging or reducing the painting 10 can be manufactured regardless of the size of the original painting 10. For this reason, a replica having a size different from that of the original painting 10 can be created by the printing method.

  In the above-described embodiment, the original painting 10 represented by the image data is a print. That is, in this method, the original painting 10 which is a print can be reproduced by the print method. For this reason, it is possible to faithfully reproduce the color and texture of the original painting 10 (that is, the print). In particular, old prints such as Ukiyo-e may not be used because the original originals do not remain or the original originals have cultural property values, making it difficult to create replicas using the print method. . However, according to the method of the present embodiment, if there is image data, a replica of the original print can be created by the print method. In other words, it is possible to duplicate a print original that cannot use the original master, and faithfully create a replica of the original print by the duplicated original. If the paint or paper used in the original print is used, the original print can be reproduced more faithfully.

  In the method of the above-described embodiment, the image data is decomposed into layers based on the colors of the respective parts of the painting 10. However, a portion having the same color in the original image data may be decomposed into a plurality of layers. Thus, a portion having the same color in the original image data can be represented by a different color or a different pattern in the created replica.

  In the above-described embodiment, both the flat plate 40 and the convex portions 42 and 44 (the convex portion 42 for printing and the convex portion 44 for position adjustment) are formed by the 3D printer. The 3D printer creates a three-dimensional shape by curing a resin or powder in layers and stacking the cured layers in layers. When the original plates 50 to 56 are manufactured, the flat plate 40 may be first cured in a layer shape, and then the convex portions 42 and 44 may be cured in a layer shape. Alternatively, the convex portions 42 and 44 may be cured first in a layer shape, and then the flat plate 40 may be cured in a layer shape. Further, the direction of the layer to be hardened may be set so as to cross the convex portions 42 and 44 and the flat plate 40. Alternatively, the flat plate 40 may be prepared in advance, and the convex portions 42 and 44 may be formed on the surface of the flat plate 40 by a 3D printer. That is, only the convex portions 42 and 44 may be formed by a 3D printer. If only the convex portions 42 and 44 are formed by a 3D printer, the working time of the 3D printer can be shortened.

  In the above-described embodiment, the side surface of the convex portion 42 is substantially perpendicular to the flat plate 40 as shown in FIG. With this configuration, the original 3D data can be easily created. On the other hand, in this configuration, when the width of the printing surface is narrow, for example, the entire width of the convex portion 42 is narrowed like the convex portion 42a in FIG. 13, and the strength of the convex portion 42 is weakened. In particular, in the case of paintings with fine lines such as ukiyo-e, the width of the printed surface may have to be reduced. In such a case, as shown in FIG. 14, the side surface of the convex portion 42 may be a tapered surface whose width becomes wider toward the flat plate 40 side. According to such a structure, sufficient intensity | strength can be given to the convex part 42a which has a printing surface with a narrow width | variety. Further, in the case where the tapered surface is provided in this way, it is somewhat difficult to create 3D data of the original plates 50 to 56, but the creation of 3D data of the tapered surface can be automated by a predetermined algorithm.

  Further, in the above-described embodiment, the position adjusting convex portion 44 of the type in which the corner portion 62 of the paper 60 abuts is formed. However, other types of position adjustment convex portions may be formed. For example, a hole may be provided in the paper 60, and a position adjusting convex portion that is inserted into the hole may be provided. Further, when the paper 60 is attached in advance to a frame such as a wooden frame, a position adjusting convex portion that engages with an end surface of the frame, a hole or a concave portion provided in the frame may be provided.

  Moreover, after forming each convex part 42 with a 3D printer, you may perform the process which roughens the printing surface of each convex part 42. FIG. The roughening treatment may make the paint easier to conform to the printed surface. Moreover, after forming each convex part 42 with a 3D printer, you may perform the process which planarizes the printing surface of each convex part 42. FIG.

  In addition, using the original 50 manufactured by the 3D printer as described above, an original having substantially the same shape can be mass-produced by molding. That is, first, the shape of the original 50 is formed on the original 50 (for example, a liquid resin is poured around the original 50 and then the resin is cured). Next, a mold having a cavity having the shape of the original 50 is created based on the shape of the mold. An original plate having the same shape as the original plate 50 can be mass-produced by a forming method using the forming die. The original plates 52 to 56 can also be mass-produced by the same method. In addition, the molding here includes various techniques such as resin molding and casting that are performed by the cavity surface.

  The structure disclosed in this specification will be described below. The method for producing an original plate for printing disclosed in the present specification includes a first step and a second step. In the first step, a first original plate is manufactured by forming a first convex portion for printing the first portion of the painting by a 3D printer based on image data representing the painting. In the second step, a second original plate is manufactured by forming a second convex portion for printing a second part of the painting different from the first part based on the image data by a 3D printer.

  In the above manufacturing method, the first portion may have a color different from that of the second portion.

  According to this configuration, portions having different colors in the image data can be printed by different original plates (first original plate and second original plate). The picture represented by the image data can be printed more accurately.

  In the above manufacturing method, the picture may be a print. That is, the image data may be image data representing a print.

  According to this configuration, a replica of the print indicated by the image data can be created by a print technique using the first original and the second original. That is, the original print can be reproduced with extremely high reproducibility. For example, old print masters are often banned due to their high cultural value even if they are already discarded or exist. However, according to this method, such a print replica can be created using the same print technique.

  In the above manufacturing method, the first original plate may have a third convex portion for printing a third part of the painting different from the first part and the second part. In the step of manufacturing the first original plate, the third convex portion may be formed by a 3D printer. Further, the second original plate may have a fourth convex portion for printing the third portion. In the step of manufacturing the second original plate, the fourth convex portion may be formed by a 3D printer.

  According to this structure, the same 3rd part can be printed by the 3rd convex part and the 4th convex part. For this reason, the third portion can be printed by overprinting.

  In the manufacturing method, the first original plate has a first base body having a first convex portion formed on a surface thereof, and is formed on the surface of the first base body and higher than the first convex portion. You may have the 1st position adjustment convex part. In the step of manufacturing the first original plate, the first position adjusting convex portion may be formed by a 3D printer. The second original plate has a second base body having a second convex portion formed on a surface thereof, and a second position adjusting convex formed on the surface of the second base body and higher than the second convex portion. May have a part. In the step of manufacturing the second original plate, the second position adjustment convex portion may be formed by a 3D printer.

  When printing on a sheet using the original, the sheet can be aligned with the original by bringing the end of the sheet into contact with the position adjustment convex portion. Such a convex portion for position adjustment is called a register in the field of ukiyo-e. According to the above configuration, since the position adjustment convex portion can be formed by the 3D printer, the position adjustment convex portion can be accurately arranged with respect to the printing convex portion.

  In the above manufacturing method, the side surface of the first convex portion may be a tapered surface, and the side surface of the second convex portion may be a tapered surface.

  In one original plate, a convex portion having a wide printing surface and a convex portion having a narrow printing surface are mixed. When the side surface of the convex part is perpendicular to the printing surface, if the width of the printing surface of the convex part is narrow, the width of the convex part becomes narrow and the strength of the convex part becomes weak. If the height of the convex portion is lowered in order to increase the strength of the thin convex portion, printing tends to be unclear. By making the side surface of the convex portion a tapered surface as described above, the strength of the convex portion can be improved without reducing the height of the convex portion.

  Said manufacturing method may further have the process of roughening the printing surface of a said 1st convex part, and the process of roughening the printing surface of a said 2nd convex part.

  Depending on the material of the original plate, the printed surface may be difficult to blend in. Therefore, by roughening the printing surface as described above, the paint can be easily adapted to the printing surface.

  The manufacturing method includes forming a first mold by transferring the shape of the first original plate, manufacturing a third original plate using the first mold, and transferring the shape of the second original plate. This may further include a step of forming a second mold and manufacturing a fourth original plate using the second mold.

  According to this method, the third original plate having a printing surface having substantially the same shape as that of the first original plate and the fourth original plate having a printing surface having substantially the same shape as that of the second original plate can be mass-produced at low cost.

  Further, the prints may be produced using the first original plate and the second original plate manufactured by the 3D printer. The print production method disclosed in the present specification uses a first original plate manufactured by a step of printing on a sheet using a first original plate manufactured by a 3D printer, and a second original plate manufactured by the 3D printer. And the step of printing on the sheet with a color different from the step of printing on the sheet.

Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.
The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

10: Painting 12: Outline 14: Skin part 16: Eye part 18: Nose part 20: Mouth part 22: Decoration part 24: Overlapping part 26: Position adjustment part 30-36: Layer 40: Flat plate 42: Convex part 44: Position Convex part for adjustment

Claims (9)

A method for producing an original for printing,
A step of manufacturing a first original plate by forming a first convex portion for printing a first portion of the painting by a 3D printer based on image data representing the painting;
A step of producing a second original plate by forming, by a 3D printer, a second convex portion for printing a second portion of the painting different from the first portion based on the image data;
Having a method.   The method of claim 1, wherein the first portion has a different color than the second portion.   The method according to claim 1 or 2, wherein the painting is a print. The first original plate has a third convex portion for printing a third portion of the painting different from the first portion and the second portion;
In the step of manufacturing the first original plate, the third convex portion is formed by a 3D printer,
The second original plate has a fourth convex portion for printing the third portion;
In the step of manufacturing the second original plate, the fourth convex portion is formed by a 3D printer.
The method according to claim 1. The first original plate has a first base body having a first convex portion formed on a surface thereof, and a first position adjusting convex formed on the surface of the first base body and higher than the first convex portion. Have
In the step of manufacturing the first original plate, the first position adjustment convex portion is formed by a 3D printer,
The second original plate has a second base body having a second convex portion formed on a surface thereof, and a second position adjusting convex formed on the surface of the second base body and higher than the second convex portion. Have
In the step of manufacturing the second original plate, the second position adjustment convex portion is formed by a 3D printer.
The method according to claim 1. A side surface of the first convex portion is a tapered surface;
A side surface of the second convex portion is a tapered surface;
The method according to claim 1. Roughening the printing surface of the first convex portion;
Roughening the printing surface of the second convex part,
The method according to claim 1, further comprising: Forming a first mold by transferring the shape of the first original plate, and producing a third original plate using the first mold;
Forming a second mold by transferring the shape of the second original plate, and producing a fourth original plate using the second mold;
The method according to claim 1, further comprising: A method for producing prints,
Printing on a sheet using a first master produced by a 3D printer;
A step of printing on the sheet in a color different from the step of printing on the sheet using the first original plate using a second original plate produced by a 3D printer;
Having a method.