JPS6352549B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a method for manufacturing a patterned structure that emphasizes the contrast of a colored pattern, and particularly to a method of manufacturing a patterned structure that emphasizes the contrast of a colored pattern by imparting a surface gloss difference corresponding to the colored pattern. The present invention relates to a method for easily manufacturing a patterned structure without being subject to restrictions on material or product characteristics.

Technical Background Colored patterns are widely applied to wooden or metal products such as musical instruments, exercise equipment, and furniture for decorative purposes. In addition, on this colored pattern, for the purpose of protecting the base or improving the surface characteristics,
It is also widely practiced to apply a uniform transparent resin coating to the entire surface. However, in the colored pattern structure obtained in this way, the contrast provided by the colored pattern underneath is reduced, especially due to the presence of the uniform transparent resin coating provided on the surface.
The desired design effect may not be sufficiently achieved.
This tendency is particularly strong when the color of the colored pattern is close to the surrounding color. From the standpoint of contrast alone, it is possible to increase the contrast by providing a significant difference in tone between the color of the colored pattern and the surrounding color. However, such enhancement of the contrast based only on differences in the color tone of the pattern often gives the impression that the article with the pattern is of low quality.

In such cases, one conventional means of increasing the contrast of the colored pattern is the use of inlaid patterns of different materials (for example, inlay patterns on the soundboard of a stringed instrument). That is, in this case, the base material is processed to form a recessed part of the desired shape, and a different material having a different color or colored in a different color is fitted into the recess, and the color tone is changed. In addition to differences in texture, differences in texture due to differences in materials (for example, shellwork embedded in a wooden base) emphasize the contrast of the patterns. However, although this inlaid pattern gives a good appearance, it requires a lot of processing time and has very poor work efficiency.In addition, it has the disadvantage that it takes a lot of time to process and has very low work efficiency. There are drawbacks such as cracks in the film and surface irregularities due to processing defects.

In view of the problems of the prior art described above, the present invention aims to provide a method for manufacturing a pattern structure having good contrast even when the colored pattern provided on a substrate is relatively similar to the surrounding color. Have one main purpose.

In the course of research for the above-mentioned purpose, the present inventor found that in the case of a pattern created by inlaying different materials as described above, even if the colors themselves are similar, the pattern has a good sense of conspicuousness due to the difference in the texture of the materials. I focused on this. We recognize that this difference in texture is largely due to differences in gloss or reflectance, and therefore, even if patterns of the same color are given a difference in gloss or reflectance, contrast, etc. The conspicuousness increases and even a difference in three-dimensional appearance appears, and as mentioned above, if a transparent resin film is simply formed on the colored pattern for the purpose of surface protection, etc., it will only reduce the contrast with the surroundings of the colored pattern. However, if you add a difference in gloss or reflectance that corresponds to the colored pattern, you can give a difference in texture in addition to a difference in tone to the surroundings of the colored pattern, thereby emphasizing the contrast and giving the pattern a three-dimensional effect. We found that it is possible to even give

Rather than improving contrast, some of the designs printed on substrates such as tissue paper and printing paper are printed with ink with a high content of extender pigments, with the aim of giving a three-dimensional effect by synchronizing the colored pattern and texture. A method for manufacturing resin pre-coated decorative paper has also been proposed, which comprises penetrating a portion of the transparent resin on the surface to be coated into the ink layer to reduce the light reflectance of the resin layer surface in the ink layer portion. There is (Tokuko Showa 53)
-427 Publication). This method is effective in giving a three-dimensional effect by synchronizing the colored pattern and gloss.
Including things similar to the findings of the inventors mentioned above, in order to obtain such synchronization, (1) there are many restrictions on the combination of the extender pigment and the surface-applied transparent resin; (2) the inclusion of the extender pigment; (3) Differences in texture are caused by the non-uniformity of the transparent resin layer applied to the surface; therefore, the physical properties (protection) of the surface layer This introduces new problems in the process and product characteristics that cannot be overlooked, such as the loss of functionality (function) in response to differences in visual texture. Furthermore, (4) the resulting low-gloss pattern is only one that completely matches the colored pattern, and it is not possible to create a design effect by slightly changing this pattern.

SUMMARY OF THE INVENTION In view of this, the present inventor has discovered that the effect of the difference in texture based on the gloss change corresponding to the colored pattern described above can be achieved by covering the colored pattern provided on the substrate with a uniform transparent resin. It has been found that it can also be obtained by a method in which after uniformizing the properties, a matte pattern corresponding to the above-mentioned colored pattern is further formed thereon. Thereby, the effect based on the synchronization of the desired colored pattern and glossy pattern can be obtained without introducing problems such as (1) to (3) of the above-mentioned conventional techniques. It is also possible to avoid constraints such as (4) above.

The method of manufacturing a patterned structure of the present invention is based on such knowledge, and more specifically, the method of manufacturing a patterned structure of the present invention is based on the above knowledge, and more specifically, the following steps (a) to (c) are sequentially applied to a substrate to form a laminated resin film. It is characterized by:

(b) A step of partially printing and forming a colored resin film on the substrate by a screen printing method; (B) A step of coating the entire surface of the substrate with a glossy transparent resin film that covers the above-mentioned partially colored resin film. and (c) a step of positioning and printing a matte resin film through the entire transparent resin film at a plane position that substantially corresponds to the partially colored resin film by screen printing.

DESCRIPTION BASED ON EXAMPLES OF THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a schematic cross-sectional view of the surface layer of the most basic example of a patterned structure obtained by the method of the present invention. The patterned structure of this example is produced by forming a colored pattern 2 on a substrate 1 and a transparent glossy resin film 3 covering the colored pattern 2, and further disposing a transparent resin film 3 on the transparent resin film 3 according to the method of the present invention. A matte or matte transparent resin film 4 having a planar shape substantially the same as the colored pattern is formed thereon.

Any material that can provide a solid surface can be used as the substrate 1, typical examples include musical instruments,
Examples include the surface layer of athletic equipment, furniture, and other wood products, plastic products, and metal products. The surface of the base 1 may be made of the material itself such as wood, plastic, or metal, or may have a uniform surface treatment such as transparent or opaque colored coating applied thereto. Examples of uniform surface treatments include, for example, coloring by mixing pigments as necessary.
Examples include pasting a synthetic resin sheet such as ABS resin, pasting a cured product of phenol resin-impregnated paper, or even coating the surface with enamel paint, etc., all of which have the effect of the present invention. effect can be obtained.

According to the present invention, in order to form the colored pattern 2, a screen printing method is particularly used in consideration of facilitating the alignment work with the matte transparent resin film 4, which will be described later. As an example, the colored pattern 2 has a thickness of
An ink pattern made of an epoxy resin mixed with a pigment of a desired color of about 20 to 30 μm is preferably used.

The method of forming the transparent glossy resin film 3 is not particularly limited, but the method of forming the transparent glossy resin film 3 is not particularly limited, but it is possible that the colored pattern may be deformed or shifted due to external force being applied to the colored pattern due to contact between the application tool and the object to be coated, such as in roller coating. ,
For reasons such as preventing scratches, a spray coating method or a curtain floating method is preferably used. 40-60μm as an example
A polyurethane coating film of a certain thickness is suitably formed.

Further, according to the present invention, the matte transparent resin film 4
In order to obtain consistency in shape with the above-mentioned colored pattern 2, it is printed and formed particularly by a screen printing method. If the same screen used for printing the colored pattern is used again, alignment work will be easier and accuracy will likely be improved. Further, the matte transparent resin film 4 is formed to have a thickness of, for example, 20 to 30 μm.

To make the surface of this transparent resin film 4 matte,
A method using an ink in which pigments or other fillers having a matting effect, such as aluminum stearate, ultrafine silica powder, low- or medium-pressure polyethylene fine powder, are added and mixed into a paint vehicle that provides the transparent resin film 4. It can be used suitably.

The presence or absence of gloss required between the transparent resin film 3 and the transparent resin film 4, or the difference in gloss, is the difference in each measured value by the coating surface gloss measurement method using 60 degree specular reflectance, and is preferably a gloss of 10 or more. 20 or more is suitable for this invention. If the above measurement value difference requirements are met, it is not necessarily required that the absolute value of the measurement value of each resin film falls separately and separately into the categories referred to as normal gloss, semi-glossy or matte. .

Modifications Although a basic embodiment of the method for manufacturing a patterned structure of the present invention has been described above, it is possible to make various modifications to the above example within the scope of the present invention. For example, the shape of the matte transparent resin film does not necessarily have to be the same as the colored pattern 3 as shown in FIG.
It can be made slightly narrower (for example, about 0.5 to 2 mm), in which case the pattern can have a three-step appearance, or conversely, it can be made slightly wider. Further, when the colored pattern is a discontinuous pattern such as spots 2a, 2b, 2c as shown in FIG. 3, a matte transparent resin film 4b can be formed along the entire contour. Therefore, in this specification, the expression "the matte transparent resin film corresponds to the colored pattern" is used to include this series of correspondences. Furthermore, when there are a plurality of colored patterns, it is of course possible to form a matte transparent resin film corresponding to only some of them.

Effects of the Invention As described above, according to the present invention, a transparent resin film is formed on the entire surface of a substrate, especially a colored substrate, for the purpose of surface protection, gloss imparting, etc. By aligning and printing the colored pattern and the matte resin film using the screen printing method, the planar shape corresponding to the colored pattern is made matte, so that when the colored pattern and the surrounding color are similar in color, Also provided is a method for manufacturing a patterned structure that increases the contrast of the pattern due to the difference in gloss superimposed on the pattern and has a seemingly three-dimensional design.

The method of this invention is particularly effective when the pattern color is similar to the surrounding color, such as hue difference (maximum 5), lightness difference (maximum 10), and saturation difference (maximum) in the Munsell color solid.
10), we emphasized the pattern contrast of similar colors whose (color difference) was defined as (color difference) = (hue difference) x 2 + (brightness difference) x 1 + (saturation difference) in the range of 2 to 8. It is particularly effective for producing patterned structures.

Furthermore, the method of the present invention has the advantage that a structure having a pattern layer with enhanced contrast as described above can be manufactured without inconveniences such as restrictions on printing materials and deterioration of surface layer properties. .

[Brief explanation of the drawing]

1 to 3 are schematic partial cross-sectional views of the surface layer portion of an example of a patterned structure manufactured by the method of the present invention. 1... Base body, 2, 2a, 2b, 2c... Colored pattern, 3... Glossy transparent resin, 4, 4a, 4b...
Matte transparent resin film.

Claims (1)

[Claims] 1. A method for manufacturing a patterned structure, characterized in that a laminated resin film is formed on a substrate by sequentially applying the following steps (a) to (c): (a) on a substrate: a step of partially printing and forming a colored resin film by a screen printing method; (b) a step of coating the entire substrate with a glossy transparent resin film covering the partially colored resin film; and (c) a step of forming the above-mentioned A process of positioning and printing a matte resin film by screen printing via a completely transparent resin film at a plane position that substantially corresponds to the partially colored resin film. 2. The method for manufacturing a patterned structure according to claim 1, wherein the transparent resin film is applied over the entire surface in step (b) by a spray coating method or a curtain flow coating method.