Cosmetic material and its manufacturing method

Abstract

To provide a decorative material close to nature with low gloss.SOLUTION: A decorative material to which a concavo-convex pattern is transferred by embossing, comprising a concavo-convex pattern 2 formed on a surface of a base material 1 and a large number of fine dots 3 formed so as to be arranged irregularly over an entire surface of the concavo-convex pattern, wherein a large number of fine dots having a height of 5 to 50 μm are exposed on the surface of the base material.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a decorative material used for decorative sheets for building materials, interior skin materials for vehicles, laminate films, etc., and to a manufacturing method for producing the decorative material. [Background technology]

[0002] Conventionally, there are decorative materials to which a textured pattern is transferred by embossing. A manufacturing method of an embossing plate used to manufacture decorative materials with highly decorative wood grain, stone grain, cloth grain, leather grain, etc., comprises the steps of forming linear fine textures on the surface of a metal base material by etching, etching the surface of the metal base material with the linear fine textures formed thereon to form convex and concave portions corresponding to the surface shape of the original, and sandblasting to form grain-like textures only in the concave portions (see, for example, Patent Document 1). On the surface of the metal substrate, the tops of the convex portions corresponding to the vessels, tracheids, etc. of wood tissue are formed with a linear micro-texture consisting of parallel lines 5 to 30 μm deep and spaced 20 to 100 μm apart. Depending on the type of decorative material to be produced, such as wood grain, stone grain, cloth grain, or leather grain, the linear micro-texture that is most suitable for reproducing the surface condition of the original can be used to faithfully reproduce the surface gloss, surface shape, texture, etc. On the surface of the metal substrate, the inner surface of the recesses is subjected to sandblasting treatment using particles with a particle diameter of about 1 to 100 μm, specifically #150 (63 to 106 μm) to form grain-like irregularities. An embossing machine equipped with an embossing plate is used to emboss the surface of a surface substrate layer made of a transparent polyvinyl chloride resin or the like, and at the same time, the back substrate layer provided with a printing ink layer is laminated to the surface substrate layer, and a transparent protective layer is then provided over the entire embossed surface to complete the decorative material. In other words, the embossing process forms linear fine concave and convex irregularities by etching in the surface of the surface substrate layer at locations corresponding to the convex parts of the embossing plate, and sandblasts form grained concave and convex irregularities in the locations corresponding to the concave parts of the embossing plate. The protective layer improves the surface properties of the decorative material and adjusts the surface gloss, and inorganic fine powders such as calcium carbonate, barium sulfate, silica, and alumina are added to the thermosetting resin or ultraviolet-curing resin used as the protective layer. This allows the decorative material to have surface irregularities corresponding to the wood structure, a surface gloss whose intensity varies depending on the viewing direction, and the texture of the wood is less likely to be damaged by surface wear. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 08-011207 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the decorative material described in Patent Document 1, the roughness of the grain-like irregularities created by sandblasting becomes too small, resulting in strong reflected light, which not only increases the gloss and luster of the grain-like irregularities and makes it impossible to obtain a natural texture, but also poses the problem that when slight heat is applied to the surface substrate layer, the embossed grain-like irregularities tend to return to their flat state (revert to their original state). Furthermore, because the material of the protective layer laminated over the entire surface of the embossed, linear, fine irregularities or grained irregularities contains fine powder (filler), there was a problem that white blurring was likely to occur in the case of dark colors. If the lamination of the protective layer is stopped in order to solve this problem, the particularly fine grained irregularities are exposed, which makes the surface susceptible to damage when it comes into contact with other objects and makes it less scratch-resistant. In addition, scratches on the grained irregularities can cause changes in gloss and luster, and the surface can appear discolored. [Means for solving the problem]

[0005] In order to solve such problems, the decorative material of the present invention is a decorative material to which a textured pattern is transferred by embossing, and is characterized in that it comprises the textured pattern formed on the surface of a substrate, and a large number of fine dots formed so as to be irregularly arranged over the entire surface of the textured pattern, the large number of fine dots having a height of 5 to 50 μm and exposed on the surface of the substrate. In addition, in order to solve these problems, the manufacturing method of a decorative material of the present invention is a manufacturing method of a decorative material in which a relief pattern is transferred from an embossing plate, and includes a first engraving step of forming an embossed pattern corresponding to the relief pattern on the surface of the embossing plate, a second engraving step of forming a large number of fine concave portions throughout the embossed pattern, and an embossing step of pressing the plate surface against the surface of a substrate, wherein in the second engraving step, the large number of fine concave portions each have a depth of 5 to 50 μm and are irregularly arranged along the entire embossed pattern, and in the embossing step, the embossed pattern and the fine concave portions are reversed, forming the relief pattern on the surface of the substrate, and the large number of fine dots are exposed and formed over the entire surface of the relief pattern. [Brief explanation of the drawings]

[0006] [Figure 1] 1A and 1B are explanatory diagrams showing the overall structure of a decorative material according to an embodiment of the present invention, in which (a) is a partial longitudinal front view of the decorative material, (b) is a photograph of a portion of the decorative material, and (c) is a partially enlarged photograph. [Figure 2] 10 is an enlarged photograph showing the arrangement of fine dots. [Figure 3] 1A and 1B are explanatory views showing the shape of fine dots, in which (a) is a partially enlarged vertical sectional front view of an example of a cosmetic material, and (b) is a partially enlarged vertical sectional front view of another example of a cosmetic material. [Figure 4] 1A and 1B are explanatory diagrams showing the overall configuration of a method for manufacturing a decorative material according to an embodiment of the present invention, in which (a) is a vertical cross-sectional front view of the engraving process, (b) is a vertical cross-sectional front view of the etching process, and (c) is a vertical cross-sectional front view of the embossing process. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in Figures 1 to 3, the decorative material A according to an embodiment of the present invention is a decorative sheet for building materials such as the inner wall surfaces of modular baths and the panel wall surfaces of system kitchens, a sheet-like or film-like vehicle interior covering material used for vehicle interior parts such as instrument panels (dashboards), seats, and decorative parts, or a laminate film to be attached to a base material such as a steel plate. Among such decorative sheets, skin materials, laminate films, etc., there is a decorative material A in which a concave-convex pattern is transferred onto the surface 1 a of the base material 1 by embossing using an embossing plate 10 . To explain in more detail, the decorative material A according to an embodiment of the present invention has as its main components a base material 1, a textured pattern 2 formed on the surface 1a of the base material 1, and a large number of fine dots 3 formed over the entire surface 2a of the textured pattern 2.

[0008] The substrate 1 is formed into a laminated structure made up of multiple layers or a single-layer structure, and has a design surface such as wood grain. In the case of the skin material shown in Figures 1(a) to 1(c) as a specific example of the substrate 1, it has a three-layer laminate structure consisting of a front layer 1b to be embossed, a back layer 1c, and an intermediate layer 1d sandwiched between the front layer 1b and the back layer 1c. The surface layer 1b is a sheet or film made of an olefin resin such as polyvinyl chloride (PVC) or other synthetic resin, and is preferably made of a transparent or translucent material. The intermediate layer 1d can also be used as a printed layer on which an image serving as a design surface is printed by a printing method such as inkjet printing or gravure printing, or by printing. In particular, when the substrate 1 is an adhesive decorative sheet, the back surface of the back layer 1c is subjected to adhesive processing (gluing), and then a release paper is removably attached. In addition, when the substrate 1 is a laminate film, an adhesive is applied as an intermediate layer 1d to the backside of the embossed transparent or translucent front layer 1b to perform adhesive processing (gluing), and a release film is removably attached as the backside layer 1c. When in use, the user peels off the release film (backside layer 1c) and attaches it to a print medium printed by a printing method such as inkjet printing or gravure printing, or by printing, thereby protecting any print medium such as a printed film. Although not shown, other examples of the substrate 1 may be modified such as a laminated structure of four or more layers or a single layer structure.

[0009] The uneven pattern 2 is an uneven pattern formed to correspond to the design surface's wood grain, stone grain, cloth grain, leather grain, pear-skin texture, etc. For example, if the design surface is wood grain, the uneven pattern is formed in a state close to the natural state of the vessels and tracheids in wood tissue. The relief pattern 2 is formed by bringing the plate surface 10a of an embossing plate 10, which will be described later and is formed in a reversed form of the relief pattern, into contact with the surface 1a of the substrate 1, and applying pressure only or pressure and heat, thereby embossing the surface 1a of the substrate 1 and transferring the relief pattern to the surface 1a of the substrate 1. The height difference of the uneven pattern 2 is set within an appropriate range depending on the type of uneven pattern, such as approximately 1 to 100 μm for wood grain, approximately 1 to 50 μm for matte finish, and approximately 1 to 300 μm for leather grain finish.

[0010] The numerous fine dots 3 are arranged over the entire surface 2a of the uneven pattern 2 regardless of the design surface, and are exposed on the surface 1a of the substrate 1. Although the size of the fine dots 3 is set larger than the "grained irregularities" produced by sandblasting as described in Patent Document 1, as shown in Figure 1(b), it is difficult to recognize the presence or absence of the fine dots 3 with the naked eye, and as shown in Figure 1(c) and Figure 2, they cannot be recognized without magnification using a microscope or the like. More specifically, the size (diameter) of the fine dots 3 is set to about 10 to 150 μm, more specifically about 10 to 50 μm. If the size of the fine dots 3 is less than 10 μm, the fine dots 3 become too small and it becomes difficult to form the fine dots 3, and if it is greater than 150 μm, the fine dots 3 become too large and can be visually confirmed, which is not preferable. The height of the fine dots 3 is set to about 5 to 50 μm, specifically about 5 to 15 μm. If the height of the fine dots 3 is less than 5 μm, the fine dots 3 will be too low, making it difficult to form the fine dots 3, and if it is higher than 50 μm, the fine dots 3 will be too high and will be visible to the naked eye, which is not preferable. The density of the fine dots 3 is approximately 5,000 to 300,000 pieces / cm 2 , in detail, approximately 10,000 to 250,000 pieces / cm 2 The density of the fine dots 3 is set to 5,000 pieces / cm 2 If the number is less than 300,000 / cm, the desired effect will not be obtained. 2 If it is higher than this, the valleys will be filled up and joined together, which is undesirable.

[0011] Furthermore, the numerous minute dots 3 are arranged irregularly (randomly) over the entire surface 2 a of the concave-convex pattern 2 . That is, the numerous fine dots 3 are randomly arranged so that the center positions of the fine dots 3 are not aligned in a straight line in any of the vertical, horizontal, and diagonal directions, as shown in Figure 2. In the enlarged photograph shown in Figure 2, the arrangement of the fine dots 3 is shown in a single color to make it easier to see, and the vertical rows are connected by dashed lines. Moreover, it is preferable that the shape of the minute dots 3 be formed so as to protrude from the entire surface 2 a of the uneven pattern 2 in a substantially hemispherical shape. Here, "substantially hemispherical" is not limited to the "hemispherical" fine dot 3' as shown in FIG. 3(a), but also includes those having no corners, such as a "semi-ellipsoid" not shown, and a "deformed hemispherical fine dot 3" having a central flat portion and a ring-shaped chamfered portion at the apex as shown in FIG. 3(b).

[0012] The manufacturing method of the decorative material A according to an embodiment of the present invention includes, as main steps, a first engraving step of forming an embossed pattern 12 of a relief pattern corresponding to the relief pattern 2 on the plate surface 10a of the embossing plate 10, a second engraving step of forming a large number of fine concave portions 13 throughout the embossed pattern 12, and an embossing step of pressing the plate surface 10a of the embossing plate 10 against the surface 1a of the substrate 1, as shown in Figures 4(a) to (c). In the first engraving process, the embossing pattern 12 is engraved on the plate surface 10a of the embossing plate 10 by performing one or a combination of processes such as etching, laser processing, milling, sandblasting, etc. The depth of the embossed pattern 12 is set to correspond to the height difference of the above-mentioned concave-convex pattern 2 depending on the type of the concave-convex pattern. In the second engraving process, the embossed pattern 12 is engraved so that a large number of minute recessed portions 13 corresponding to a large number of minute dots 3 are irregularly arranged throughout the entire pattern, mainly by etching alone or, if necessary, by adding other processes such as laser processing, milling, or sandblasting. The size (size and depth), density and shape of each of the numerous minute recessed portions 13 are set to correspond to the size (size and height), density and shape of the minute dots 3 described above.

[0013] In the embossing process, the plate surface 10a of the embossing plate 10 is pressed against the surface 1a of the substrate 1, and embossing is performed by heating as necessary, thereby transferring a relief pattern 2 and numerous fine dots 3 to the surface 1a of the substrate 1. In this case, it is preferable to use an embossing roll having a plate surface 10a formed on the outer peripheral surface of a cylindrical body as the embossing plate 10. In a preferred example, first, in the first engraving step, an embossed pattern 12 with a wood grain pattern is created on the outer peripheral surface of the embossing roll (plate surface 10a of embossing plate 10) by etching, milling, or laser methods. Next, as a preparatory step for the second engraving step, a matte finish is performed by sandblasting, and then, in the second engraving step, numerous fine recessed portions 13 are created by etching. Thereafter, in order to improve the durability of plate surface 10a, a chrome plating layer (not shown) is formed on the surfaces of embossed pattern 12 and numerous fine recessed portions 13, thereby producing an embossing roll with an improved durability of plate surface 10a. As a result, in addition to the numerous fine recessed portions 13, the wood grain embossed pattern 12 and the matte finish by sandblasting remain, which, together with the numerous fine recessed portions 13, provide a matte effect. This sandblasted portion is disposed in a valley on the surface 1a of the substrate 1, and is not subject to much wear. Therefore, there is no drawback in that the gloss (of the sandblasted portion) changes significantly due to wear.

[0014] According to the decorative material A of this embodiment of the present invention, in addition to the textured pattern 2 of a design such as wood grain formed on the surface 1a of the base material 1, a large number of fine dots 3, each having a height of 5 to 50 μm and arranged irregularly (randomly) over the entire surface 2a of the textured pattern 2, are exposed in a random arrangement so as to cover the entire surface 2a of the textured pattern 2. As a result, the coarseness of the fine dots 3 is not too fine, suppressing reflected light and reducing the overall gloss and luster of the surface 1a of the substrate 1. In addition, fingers and hands come into direct contact with the exposed fine dots 3, but because the fine dots 3 are irregularly arranged, the feel when touched by fingers or hands is smooth and not artificial, and the sound when rubbed with fingers or hands is not unnatural and not artificial. Therefore, a low-gloss, natural-looking cosmetic material A can be provided. As a result, compared with conventional sandblasting in which the roughness of the grain-like unevenness becomes too fine, a texture closer to nature is obtained, and even if a little heat is applied to the surface 1a of the base material 1, the fine dots 3 are less likely to return to their original shape, and a realistic low-gloss uneven pattern 2 can be reproduced. Furthermore, compared to conventional designs in which a protective layer is laminated over the entire surface of the embossed linear fine irregularities or grained irregularities, lamination of a protective layer is not required, so white blurring is less likely to occur even with dark colored irregularity patterns 2, resulting in excellent color reproducibility.

[0015] In particular, it is preferable that the numerous fine dots 3 are formed so as to protrude from the entire surface 2 a of the uneven pattern 2 in a substantially hemispherical shape. In this case, no matter what direction light is incident on the numerous minute dots 3, the light is diffused by the approximately hemispherical surface 3a, reducing the amount of reflected light, and the approximately hemispherical surface 3a has no corners, making it less susceptible to scratches. Therefore, it is possible to provide a decorative material A in which the reflected light from the uneven pattern 2 is natural and which is resistant to scratches. As a result, compared with conventional products in which a protective layer is laminated over the entire surface of the embossed linear fine irregularities or grained fine irregularities, even without the protective layer, the product is less likely to be damaged by contact with other objects, has excellent scratch resistance, and can prevent changes in gloss or luster or discoloration due to scratches on the fine dots 3.

[0016] Furthermore, it is preferable that the substrate 1 is made of a transparent or semi-transparent material, and that the printed layer 1c on the design surface is provided so that the substrate 1 can be seen through. In this case, the design surface of the printed layer 1c can be seen through the transparent or semi-transparent substrate 1 on which the many fine dots 3 are irregularly arranged. Therefore, it is possible to prevent the occurrence of interference fringes (moire) due to optical interference with the design surface of the print layer 1c. As a result, the design surface of the print layer 1c does not have an unnatural gloss.

[0017] Furthermore, in the manufacturing method of the decorative material A according to this embodiment of the present invention, the plate surface 10a of the embossing plate 10 is pressed against the surface 1a of the substrate 1 to perform embossing, thereby forming a textured pattern 2 constituting a design such as a wood grain pattern on the surface 1a of the substrate 1, and at the same time exposing a large number of fine dots 3 that are 5 to 50 μm deep and irregularly arranged across the entire surface 2a of the textured pattern 2. Therefore, a low-gloss, natural-looking decorative material A can be provided by embossing alone. As a result, compared to conventional manufacturing methods in which a transparent protective layer is provided over the entire embossed surface, a low-gloss decorative material A can be produced by embossing alone without a protective layer. Furthermore, since the fine recessed portions 13 are formed by etching after the embossed pattern 12 is formed, the fine dots 3 can be engraved into the embossed pattern 12 of any concave-convex pattern, making it highly versatile. Furthermore, since the minute dots 3 are arranged irregularly, it is possible to avoid defects caused by bending of the substrate 1 during embossing, and unevenness during manufacturing such as peeling during embossing. [Example]

[0018] Examples of the present invention will be described below. [Examples 1 to 6 and Comparative Examples 1 to 8] Examples 1 to 6 shown in Table 1 and Comparative Examples 1 to 7 shown in Table 2 are decorative materials in which embossing plates were prepared to combine fine dots of the size (diameter), height, density, and arrangement described therein with a predetermined uneven pattern, and uneven patterns consisting only of different fine dots were transferred to the surface of a substrate by embossing using these embossing plates. Comparative Example 8 shown in Table 2 is a decorative material in which an embossing plate with only an uneven pattern was prepared, and uneven patterns without fine dots were transferred to the surface of a substrate by embossing using this embossing plate. Evaluation samples of the same size were then prepared for each. Examples 1 to 6 and Comparative Examples 1 to 8 share a common structure, which is a three-layer substrate having a printed layer with a woodgrain textured pattern and a design surface as shown in Figures 1(b) and 1(c). The fine dots in Examples 1 to 6 and Comparative Examples 1 to 7 are "hemispherical" as shown in Figure 3(a).

[0019] In Examples 1 to 6, the size (diameter) of the fine dots was 10 to 150 μm, the height of the fine dots was 5 to 50 μm, and the density of the fine dots was 5,000 to 300,000 pieces / cm 2 It has become. Specifically, the fine dots in Example 1 have a diameter of 10 μm, a height of 14 μm, and a density of 20,000 dots / cm 2are arranged irregularly (randomly). The fine dots of Example 2 have a diameter of 150 μm, a height of 14 μm, and a density of 20,000 dots / cm 2 are randomly arranged. The fine dots of Example 3 have a diameter of 20 μm, a height of 5 μm, and a density of 20,000 dots / cm 2 are arranged irregularly (randomly). The fine dots of Example 4 have a diameter of 20 μm, a height of 50 μm, and a density of 20,000 dots / cm 2 are randomly arranged. The fine dots of Example 5 have a diameter of 20 μm, a height of 14 μm, and a density of 5,000 dots / cm 2 are arranged irregularly (randomly). The fine dots of Example 6 have a diameter of 20 μm, a height of 14 μm, and a density of 300,000 dots / cm 2 are randomly arranged.

[0020] On the other hand, in Comparative Examples 1 to 7, the diameter, height, density, or arrangement of the fine dots in Examples 1 to 6 are outside the ranges. More specifically, the fine dots of Comparative Example 1 are different from those of Examples 1 and 2 in that the diameter is 8 μm, but are otherwise the same as those of Examples 1 and 2. The fine dots of Comparative Example 2 differ from those of Examples 1 and 2 in that the diameter is 160 μm, but the rest is the same as those of Examples 1 and 2. The fine dots of Comparative Example 3 differ from those of Examples 3 and 4 in that the height is 3 μm, but the rest is the same as those of Examples 3 and 4. The fine dots of Comparative Example 4 differ from those of Examples 3 and 4 in that the height is 55 μm, but the rest is the same as Examples 3 and 4. The fine dots of Comparative Example 5 had a density of 4,000 dots / cm 2 This is different from the fifth and sixth embodiments, but the rest is the same as the fifth and sixth embodiments. The density of the fine dots in Comparative Example 6 was 350,000 / cm 2This is different from the fifth and sixth embodiments, but the rest is the same as the fifth and sixth embodiments. The fine dots of Comparative Example 7 had a diameter of 20 μm, a height of 14 μm, and a density of 20,000 dots / cm 2 However, it differs in that the arrangement is regular rather than random. . Furthermore, Comparative Example 8 is different in that it is a decorative material without fine dots.

[0021] [Evaluation criteria] The evaluation results (gloss value, tactile feel, contact sound, interference fringes) shown in Tables 1 and 2 are based on the following indices. "Gloss value" is a test for checking the gloss and luster of the surface in Examples 1 to 6 and Comparative Examples 1 to 8. The evaluation of "gloss value" was measured using a BYK tester in accordance with Method 3 (incident angle 60 degrees) specified in JIS Z8741. "Tactile feel" is a test to confirm the feel of the surface on the skin in Examples 1 to 6 and Comparative Examples 1 to 8. The evaluation of "tactile feel" is a test to test the feel of the surface when touched with a fingertip, and the result is an evaluation of which of the following categories it falls into. "A smooth texture similar to natural wood," "A rough texture different from natural wood," and "A smooth texture different from natural wood." "Contact noise" is a test to check the surface irregularities in Examples 1 to 6 and Comparative Examples 1 to 8. The "contact noise" is evaluated by conducting a test to compare the sounds made when rubbing with a fingertip, and assessing whether the sound falls into one of the following categories. "The natural sound of rubbing natural wood," "Unlike natural wood, it is smooth and silent," and "An artificial sound that is different from natural wood." "Interference fringes" is a test to check the optical interference with the design surface of the printed layer in Examples 1 to 6 and Comparative Examples 1 to 8. The evaluation of "interference fringes" is the result of a test to see whether interference fringes (moire) occur on the surface. The "overall evaluation" was a three-level comprehensive evaluation based on the evaluation results of the aforementioned "gloss value," "touch," and "contact sound." The results of this "overall evaluation" were evaluated as follows: ◎: optimum, ○: good, ×: unsuitable.

[0022] [Table 1]

[0023] [Table 2]

[0024] [Evaluation results] Comparing Examples 1 to 6 and Comparative Examples 1 to 8, Examples 1 to 6 obtained good evaluation results in all of gloss value, tactile feel, contact sound, and interference fringes. As is clear from the evaluation results, it was demonstrated that Examples 1 to 6 are low-gloss, natural-looking decorative materials. In particular, Examples 1, 4, and 6 obtained the optimum overall evaluation, demonstrating that they are lower-gloss, natural-looking decorative materials.

[0025] However, in contrast to this, Comparative Examples 1 to 8 received poor evaluation results in any of gloss value, tactile feel, contact sound, and interference fringes. More specifically, in Comparative Example 1, the diameter of the fine dots was too small to function properly, resulting in poor evaluation results in terms of gloss value, tactile feel, and contact sound. In Comparative Example 2, the diameter of the fine dots was too large, resulting in a poor evaluation result in terms of tactile sensation. In Comparative Example 3, the height of the fine dots was too low to function properly, and the gloss value, tactile feel, and contact sound were evaluated as poor. In Comparative Example 4, the height of the fine dots was too high, resulting in a poor evaluation result in terms of tactile sensation. In Comparative Example 5, the density of the fine dots was too low to function properly, and the gloss value, tactile feel, and contact sound were evaluated as poor. In Comparative Example 6, the density of the fine dots was too high, resulting in poor evaluation results in terms of gloss value and tactile feel. Comparative Example 7, in which the arrangement of the fine dots was regular, received poor evaluation results in terms of the tactile sensation, contact sound, and interference fringes. In Comparative Example 8, the gloss value was high due to the absence of fine dots, resulting in a poor evaluation result.

[0026] In Examples 1 to 6 and Comparative Examples 1 to 8, evaluation was performed using a three-layer substrate having a printed layer with a woodgrain textured pattern and a decorative surface, but the present invention is not limited to this, and may be a three-layer substrate having a printed layer with a matte or leather textured pattern and a decorative surface. In this case, evaluation results similar to those of Examples 1 to 6 were obtained. [Explanation of symbols]

[0027] A Decorative material 1 Base material 1a Surface 1c Printing layer 2 Uneven pattern 2a Full surface 3 Fine Dots 10 Embossed Plates 10a plate 12 embossing pattern 13 Micro-concave part

Claims

1. A decorative material to which a concave-convex pattern is transferred by embossing, The uneven pattern formed on the surface of a substrate; a large number of minute dots formed so as to be irregularly arranged over the entire surface of the uneven pattern, the numerous fine dots have a height of 5 to 50 μm and are exposed on the surface of the substrate; The size (diameter) of the fine dots is 10 to 150 μm, The density of the fine dots is 5,000 to 300,000 dots / cm ２ A cosmetic material characterized by:

2. 2. The decorative material according to claim 1, wherein the minute dots protrude in a substantially hemispherical shape from the entire surface of the uneven pattern.

3. 3. The decorative material according to claim 1, wherein the substrate is made of a transparent or translucent material, and a printed layer with a design surface is provided so as to be visible through the substrate.

4. A manufacturing method of a decorative material in which a relief pattern is transferred from an embossing plate, a first engraving step of forming an embossed pattern on the surface of the embossing plate in correspondence with the concave-convex pattern; a second engraving step of forming a large number of fine concave portions over the entire embossed pattern; an embossing step of pressing the printing plate onto the surface of the substrate, In the second engraving step, a large number of minute concave portions are formed, each having a depth of 5 to 50 μm, a size (diameter) of the minute concave portions being 10 to 150 μm, and a density of the minute concave portions being 5,000 to 300,000 / cm. ２ and are randomly arranged along the entire embossed pattern; A method for manufacturing a decorative material, characterized in that in the embossing process, the embossed pattern and the fine concave portions are reversed to form a concave-convex pattern on the surface of the substrate, and the numerous fine dots are exposed and formed over the entire surface of the concave-convex pattern.

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