JP2013180478A5 - - Google Patents

Description

The method for producing a decorative sheet according to an aspect of the present invention includes a pseudo-grain pattern resembling a wood grain pattern of a wooden molded article on the three-dimensional surface of the main body having the same three-dimensional shape as a wooden molded article cut from natural wood. A method for producing a decorative sheet for forming a pattern, wherein the natural grain 2 has a plurality of sliced surface patterns 2 exposed when the natural wood is sequentially sliced toward a predetermined point inside the natural wood. Grain pattern data acquisition step for obtaining three-dimensional data, shape data acquisition step for obtaining three-dimensional data of the three-dimensional shape of the three-dimensional molded product, and dividing the surface of the three-dimensional shape into a plurality of surface regions based on the three-dimensional data, An associating step of associating a plurality of slice planes with a plurality of surface areas based on the position of the surface area, and a specific portion corresponding to a specific surface area from a specific slice plane related to the specific surface area And two-dimensional data extraction step of arranging to extract the original data, the pseudo grain pattern synthesizing step of generating data of the pseudo grain pattern by synthesizing the two-dimensional data arranged in two-dimensional data extraction step, the pseudo grain surface area A pseudo-grain pattern forming step of forming a pseudo-grain pattern on the sheet based on the pattern data.
According to the method for manufacturing a decorative sheet, similar to the above-described method for manufacturing a three-dimensional molded product, the pseudo-grain pattern data of the surface area generated in the pseudo-grain pattern synthesis step includes a predetermined inside of natural wood. The data of the 1st location of the 1st slice surface from which the distance from a point differs, and the data of the 2nd location of the 2nd slice surface are contained. Thereby, subtle changes in annual rings due to the difference in distance from a predetermined point inside the natural wood can be reproduced in accordance with the three-dimensional shape indicated by the three-dimensional data of the three-dimensional molded product acquired in the shape data acquisition step. . In the pseudo-grain pattern formation process, when the pseudo-grain pattern is formed on the sheet based on the pseudo-grain pattern data of the surface area , when the decorative sheet is put on the surface of the main body, the bark of the wooden molded product The decorative sheet can be manufactured such that substantially the same pattern is arranged by the decorative sheet at the same position as the wood grain pattern.

(6-3)
In the above embodiment, the height (the position in the Z-axis direction) of the decorative surface 52 changes along the X-axis direction, but the height (the position in the Z-axis direction) does not change along the Y-axis direction. Explained the case. However, this is also applied to the case where the surface to be decorated is complicatedly changed in the X-axis direction, the Y-axis direction, and the Z-axis direction as in the resin three-dimensional molded product 50B shown in FIG. The invention can be applied. By using the manufacturing method of the three-dimensional molded product of the said embodiment, it can represent like the wooden solid molded product which cut out the plate 57 and the mesh 58 from natural wood on the surface of the resin-made three-dimensional molded product 50B.
In the said embodiment, although the decorative surface 52 was only one surface of the main-body part 51, you may form in the whole surface of the main-body part of a resin-made solid molded product , for example. In this case, for example, another transfer sheet may be arranged along the surface facing the transfer sheet 10, that is, the first mold 20 in FIG. Further, after forming the main body, it may be transferred to a plurality of locations or a plurality of surfaces of the main body from a plurality of transfer sheets in a plurality of times. In the case of a laminate molding method or an insert molding method, decoration may be performed with a plurality of decorative sheets. A plurality of decoration methods such as a transfer method, a printing method, a laminate molding method, and an insert molding method can also be combined.
In addition, when the present invention is applied to a surface to be decorated that is complicatedly changed in the X-axis direction, the Y-axis direction, and the Z-axis direction, the transfer sheet and the decorative sheet are deformed by heat to form a three-dimensional shape. In some cases, it may grow greatly. In such a case, the transfer sheet or the decorative sheet is predicted so that the transfer sheet or the decorative sheet is extended by an experiment or simulation in advance, so that the grain pattern close to the wood pattern of the bark is obtained when it is extended. The pseudo-grain pattern to be formed may be deformed in consideration of the elongation of the sheet.
(6-4)
In FIG. 4, the imaging device 61, the data creation device 62, and the printing device 63 are described as being connected to each other by data lines. However, data exchange between the devices is, for example, storing data The data may be stored in a medium and data may be moved by a storage medium, and the data transfer method of the above embodiment is not limited.
In the above-described embodiment, each function block of the data creation device 62 interprets and executes program data capable of executing the above-described processing procedure stored in a storage device (ROM, RAM, hard disk, etc.). The case where it was realized was explained. This program data may be introduced into the storage device via a recording medium, or may be directly executed from the recording medium. The recording medium refers to a semiconductor memory such as a ROM, a RAM, or a flash memory, a magnetic disk memory such as a flexible disk or a hard disk, an optical disk memory such as a CD-ROM, DVD, or BD, and a memory card. The recording medium is a concept including a communication medium such as a telephone line or a conveyance path.
Further, the functional blocks of the data creation device 62 of the above embodiment may be realized as an LSI that is an integrated circuit. These may be individually made into one chip, or may be made into one chip so as to include a part or all of them. Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. Further, an FPGA (Field Programmable Gate Array) that can be programmed after manufacturing the LSI may be used.

(7-5)
For example, when the main body 51 regards the slice plane 102f as the first slice plane and the slice plane 103f as the second slice plane, the main body 51 considers the surface area Ar1 (first surface area) and the surface area Ar2 (second surface area). ) And has a surface area Ar3 (intermediate surface area) smoothly inclined from the surface area Ar1 to the surface area Ar2 on the decorative surface 52 (three-dimensional surface) (see FIG. 12). . In this way, the transfer layer 13 corresponds to the surface area Ar3 of the pseudo-grain pattern, which is an intermediate print pattern Pr6 composed of a grain pattern that smoothly connects the first print pattern Pr4 and the second print pattern Pr5 of the pseudo-grain pattern. Further included in the position (see FIG. 3).
14C, the first print pattern Pr4 here corresponds to the two-dimensional data Da14 obtained by copying the wood pattern of the natural wood 100 as it is, and the second print pattern Pr5 is the wood pattern of the natural wood 100. the response to the two-dimensional data Da15 that it Utsushito', intermediate prints Pr6 corresponds to two-dimensional data Da16 connecting them smoothly by the correction.
By smoothly connecting the first print pattern Pr4 and the second print pattern Pr5 with such an intermediate print pattern Pr6, it is possible to give a higher appearance texture to the three-dimensional molded product.

Claims (1)

This is a method for producing a decorative sheet for forming a pseudo-grain pattern resembling the grain pattern of the wood molded article on the three-dimensional surface of the main body having the same three-dimensional shape as a wooden molded article cut from natural wood. And
A grain pattern data obtaining step for obtaining two-dimensional data of the grain pattern of the plurality of sliced surfaces of the natural wood exposed when the natural wood is sequentially sliced toward a predetermined point inside the natural wood;
A shape data acquisition step for obtaining three-dimensional data of the three-dimensional shape of the three-dimensional molded product;
Associating the surface of the three-dimensional shape into a plurality of surface regions based on the three-dimensional data, and associating the plurality of slice planes with the plurality of surface regions based on positions of the plurality of surface regions;
A two-dimensional data extraction step of extracting and arranging the two-dimensional data of a specific portion corresponding to the specific surface area from the specific slice plane related to the specific surface area;
A pseudo-grain pattern synthesis step of generating the pseudo-grain pattern data by combining the two-dimensional data arranged in the two-dimensional data extraction step;
A method for manufacturing a decorative sheet, comprising: a pseudo-grain pattern forming step of forming the pseudo-grain pattern on a sheet based on the pseudo-grain pattern data of the surface region .