Cosmetic materials

Abstract

To provide a decorative material capable of providing an appearance or a tactile different from conventional one in the decorative material with a groove filled with ink.SOLUTION: The decorative material has a first incline part extending from one end of a groove to a deepest part of the groove and a second incline part extending from other end of the groove to the deepest part of the groove in a cross section in a direction orthogonal to a direction in which the groove extends, and comprises a groove with θ1 greater than θ2 when θ1 is an angle between a line segment from one end of the groove to other end of the groove and the line segment from one end of the groove to the deepest part of the groove, and θ2 is an angle between the line segment from one end of the groove to other end of the groove and the line segment from other end of the groove to the deepest part of the groove.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a cosmetic material. [Background technology]

[0002] Decorative materials are widely used as surface decoration materials for furniture, building materials, walls, etc. Among them, there are decorative materials that express a desired texture by filling the recesses (grooves) on the surface with ink (this process is called "WIPING").

[0003] For example, Patent Document 1 discloses that in a decorative material in which ink is filled into embossed recesses, the extension direction of the grooves (lined grooves) in the first recessed region is different from the extension direction of the grooves (lined grooves) in the second region, and the wiping direction during ink filling is set at an arbitrary angle to the extension direction of the grooves. This allows the amount of ink filled to be different between the first recessed region and the second recessed region, and when the grooves have curved portions in the extension direction, the amount of ink filled to be changed depending on the portion in the extension direction, thereby expressing a unique appearance. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 5-131800 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present disclosure is to provide a decorative material having grooves filled with ink, which has an appearance and feel different from conventional decorative materials. [Means for solving the problem]

[0006] One aspect of the present disclosure is a decorative material having a groove and an ink portion disposed within the groove, wherein in a cross section perpendicular to the direction in which the groove extends, the decorative material has a first inclined portion extending from one end of the groove to the deepest part of the groove and a second inclined portion extending from the other end of the groove to the deepest part of the groove, and wherein when θ1 is the angle formed by the line segment connecting one end of the groove to the other end of the groove and the line segment connecting one end of the groove to the deepest part of the groove, and θ2 is the angle formed by the line segment connecting one end of the groove to the other end of the groove and the line segment connecting the other end of the groove to the deepest part of the groove, θ1 is greater than θ2.

[0007] The ink portion surface may be configured so that, in the cross section, it is concave in the direction in which the groove opens, and the average ink portion thickness in the first inclined portion is greater than the average ink portion thickness in the second inclined portion.

[0008] The ink portion may be disposed so as not to cover a portion of at least one of the first inclined portion and the second inclined portion in the cross section.

[0009] At least one of the first inclined portion and the second inclined portion may have a stepped shape in cross section.

[0010] The ink portion may be disposed so as not to cover at least one of the stepped corner portions.

[0011] The groove may extend in a non-linear manner or in a meandering manner in a plan view. Effect of the Invention

[0012] According to the decorative material of the present disclosure, the grooves are filled with ink, and the decorative material can have an appearance and feel that is different from conventional decorative materials. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is an enlarged plan view of a portion of the surface of a decorative material 10, and includes a photograph of the actual decorative material 10 including the finely patterned surface. [Diagram 2]FIG. 2 is an enlarged perspective view of a portion of the decorative material 10, which is shown in a schematic manner to explain the configuration of the pattern-forming layer 12. As shown in FIG. [Diagram 3] FIG. 3 is a cross-sectional view of FIG. [Figure 4] FIG. 4 is a cross-sectional view illustrating the shape of the groove 13. As shown in FIG. [Diagram 5] FIG. 5 is a cross-sectional view illustrating another embodiment of the groove 13. As shown in FIG. [Figure 6] FIG. 6 is a cross-sectional view illustrating another embodiment of the groove 13. As shown in FIG. [Figure 7] FIG. 7 is a cross-sectional view illustrating another embodiment of the groove 13. As shown in FIG. [Figure 8] FIG. 8 is a cross-sectional view illustrating another embodiment of the groove 13. As shown in FIG. [Figure 9] FIG. 9 is a cross-sectional view illustrating another embodiment of the groove 13. As shown in FIG. [Figure 10] FIG. 10 is a cross-sectional view illustrating another embodiment of the groove 13. In FIG. [Figure 11] FIG. 11 is a cross-sectional view illustrating another embodiment of the inking portion 14. As shown in FIG. [Figure 12] FIG. 12 is a cross-sectional view illustrating another embodiment of the inking portion 14. As shown in FIG. [Figure 13] FIG. 13 is a cross-sectional view illustrating another embodiment of the inking portion 14. As shown in FIG. [Figure 14] FIG. 14 is a diagram for explaining an example of another layer structure. [Figure 15] FIG. 15 is a diagram for explaining an example of another layer structure. [Figure 16] FIG. 16 is a diagram for explaining an example of another layer structure. [Figure 17] FIG. 17 is a diagram for explaining a scene where projections and recesses are formed on a mold by a laser. [Figure 18] FIG. 18 is a diagram for explaining the scraping of ink by a doctor blade. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Each embodiment will be described below with reference to the drawings. The present invention is not limited to these embodiments. In the drawings shown below, except for FIG. 1, which is a real photograph, the size and ratio of the components may be changed or exaggerated for ease of understanding. In addition, for ease of viewing, illustrations of parts not necessary for explanation and repeated reference symbols may be omitted.

[0015] Fig. 1 is an enlarged view (plan view) of a portion of a decorative material 10 according to one embodiment, viewed from the side of the pattern-forming layer 12. For convenience, directional arrows (x, y, z), i.e., a coordinate system, are also shown in Fig. 1 and subsequent figures as necessary. Here, the x and y directions are in-plane directions in the decorative material 10, and the z direction is the thickness direction. Therefore, Fig. 1 is a view (plan view) of the decorative material 10 as viewed from the side of the pattern-forming layer 12, particularly from the z direction.

[0016] As can be seen from FIG. 1, in this embodiment, the pattern-forming layer 12 is configured to give the surface an appearance of crack-like depressions on the surface, resembling that of so-called “burnt cedar,” which is made by burning the surface of a cedar board and moderately carbonizing it. However, the appearance to be expressed in this disclosure is not limited to the burnt cedar look, but can also be a burnt wood board look made by burning and carbonizing the surface of a board of wood other than cedar, a tile or brick look with joints, a fabric look with many fibrous recesses, a leather grain look with many wrinkled recesses, etc. In these decorative material aspects, the grooves 13 with the ink parts 14 specific to the present invention disposed therein express recesses extending a predetermined length in a specific direction.

[0017] For example, in the case of a charred cedar look, the specific angles θ1 and θ2 in the specific cross section and the groove 13 with the specific ink portion 14 disposed inside create an ink concentration gradient (or concentration distribution) in the groove in a direction perpendicular to the groove extension direction, which reproduces the shadows and three-dimensional effect caused by cracks and steps, and reproduces the appearance of cracks and steps on the surface of a carbonized wood board such as charred cedar. In this case, the extension direction of the groove 13 (Y direction in Figure 2) is arranged in a direction intersecting, preferably perpendicular to, the tree ring pattern (cross grain, straight grain, etc.) of the design pattern of the printed layer 16c and the extension direction of the vessel groove wood grain (height direction of the tree). In the case of tiled or brickwork patterns, the specific angles θ1 and θ2 in the specific cross section, and the groove 13 with the specific ink portion 14 disposed therein, create an ink concentration gradient (or concentration distribution) within the groove in a direction perpendicular to the direction in which the groove extends, thereby reproducing the shadows and three-dimensional effect caused by the steps and recesses in the joints of tiled or brickwork, thereby reproducing the appearance of a joint groove. In the case of a fabric-like aspect, the specific angles θ1 and θ2 in the specific cross section, and the groove 13 with the specific ink portion 14 disposed therein, create an ink concentration gradient (or concentration distribution) within the groove in a direction perpendicular to the extension direction of the groove, thereby reproducing the shadows and three-dimensional effect caused by the steps and depressions of knots, tangles, or lump-like uneven portions (also called "neps") formed by the entanglement of fiber bundles, thereby reproducing the appearance of groove-like depressions in the structure (texture) of a fiber aggregate. In the case of a leather grain pattern, the specific angles θ1 and θ2 in the specific cross section, and the groove 13 with the specific ink portion 14 disposed therein, create an ink concentration gradient (or concentration distribution) within the groove in a direction perpendicular to the extension direction of the groove, thereby reproducing the steps and shadows caused by the recesses in the wrinkled unevenness of the leather, as well as a three-dimensional effect, thereby reproducing the appearance of the wrinkled recesses on the leather surface.

[0018] Fig. 2 is an enlarged perspective view of a portion of the decorative material 10, which is shown in a schematic manner to explain the form of the pattern-forming layer 12. Fig. 3 shows a cross-sectional view in the thickness direction taken along line III-III parallel to the x direction in Fig. 2. As can be seen from Figures 1 to 3, in this embodiment, the decorative material 10 has a substrate 11 and a pattern-forming layer 12 provided on one surface 11FS of the substrate 11 (the upper surface in Figure 2, or the surface on the + side in the z-axis direction in the coordinate system). Therefore, in this embodiment, one surface of the substrate 11 is configured to function as the pattern-forming layer 12. In other words, in this embodiment, the substrate 11 itself has a single-layer structure that also serves as the pattern-forming layer 12. It is also possible to form the substrate 11 and the pattern-forming layer 12 as separate, independent layers, and laminate the two layers together to form a two-layer structure, as in the embodiment shown in Figure 14 and described below.

[0019] Each component will be described in more detail below.

[0020] The substrate 11 is a sheet-like member that holds the pattern-forming layer 12, provides strength to the decorative material 10, and maintains the shape of the decorative material 10. The substrate 11 may be in the form of a film, a sheet, or a plate. Generally, the substrates are called films, sheets, and plates in order of thickness, but in this embodiment, the difference in thickness of the substrates is not essential or important. Therefore, in this specification, the essence of the present invention and the interpretation of the claims will not change even if the terms film, sheet, and plate are appropriately replaced with other terms.

[0021] The material of the base material 11 is not particularly limited as long as it has the same functions as conventionally known decorative materials. For example, examples of materials that can be used for the substrate include polyolefin resins such as polyethylene, polypropylene, olefin thermoplastic elastomers, and ionomers; acrylic resins such as polymethyl methacrylate and polybutyl methacrylate; thermoplastic polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, ethylene glycol-terephthalic acid-isophthalic acid copolymer, terephthalic acid-ethylene glycol-1,4-cyclohexanedimethanol copolymer, and various polyester thermoplastic elastomers; thermoplastic urethane resins; vinyl chloride resins such as polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, and ethylene-vinyl chloride copolymer; thermoplastic resins such as polycarbonate resin, ABS resin (acrylonitrile-butadiene-styrene copolymer), and styrene resin; thermosetting resins such as melamine resin, unsaturated polyester resin, epoxy resin, and two-component curing urethane resin; and ionizing radiation curing resins that are monomers or prepolymers such as radical polymerization acrylates or cationic polymerization epoxies, and that are cured by ionizing radiation (ultraviolet rays, electron beams, etc.). In addition, when the material of the base material is a resin, it may be colored with a known colorant. In addition, paper, nonwoven fabric, metal, wood, ceramics, glass, cement, stone, etc. can also be used in the form of a sheet, plate, three-dimensional object, etc. by appropriately laminating it with the above-mentioned resin material. In the case of substrates made of the materials listed below, it is more difficult to form grooves than in resin substrates, and there are often restrictions on the groove shape, processing conditions, etc. Therefore, for substrates made of these materials, it is preferable to have a two-layer (laminate) structure as shown in Figure 14, in which the above-mentioned resin layer is laminated as the pattern-forming layer 12 on the groove-forming surface side, i.e., on one surface 11FS side.

[0022] There is no particular restriction on the thickness of the substrate, but in the case of a sheet-like or film-like substrate, a substrate having a thickness of, for example, about 20 μm or more and 1000 μm or less is used, and in the case of a plate-like substrate, a substrate having a thickness of, for example, about 1 mm or more and 20 mm or less is used.

[0023] The pattern-forming layer 12 is provided on one surface 11FS of the substrate 11 (when the substrate 11 also serves as the pattern-forming layer 12, the vicinity of the one surface 11FS of the substrate 11 becomes the pattern-forming layer 12), and imparts a desired pattern to the surface of the decorative material. In this embodiment, the pattern-forming layer 12 is suitable for expressing a burnt cedar pattern on the decorative material 10. As can be seen from Figures 1 to 3, the pattern-forming layer 12 in this embodiment has a plurality of grooves 13 and ink portions 14 arranged inside the grooves 13.

[0024] Groove 13 has a cross-sectional shape with characteristics described below, and extends in the y direction in drawings such as Fig. 2. A plurality of grooves with different widths (the size in the x direction perpendicular to the extension direction of the groove), depths (the size in the thickness direction of substrate 11, which is also the size in the z direction in drawings such as Fig. 2), groove wall shapes, etc. are provided in the xy plane, and a predetermined outer shape (in this embodiment, an outer shape resembling burnt cedar) is expressed.

[0025] The width of the groove 13 (W in FIG. 3) is not particularly limited, but is preferably 200 μm or more and 1000 μm or less, which makes it possible to arrange the ink portion 14 of a desired shape in the groove 13 while making it difficult to visually recognize the groove. The width W of one groove 13 does not need to be constant in the direction in which it extends (y direction), and the width may vary.

[0026] The depth of the groove 13 (D in FIG. 3) is not particularly limited, but is preferably 30 μm or more and 80 μm or less. This makes it possible to arrange the ink portion 14 in the desired shape within the groove 13 while obtaining the effect of expressing patterns by shading, particularly reproducing the appearance of cracks and steps on the surface of a wood board whose surface has been burned and carbonized, such as charred cedar. Furthermore, the depth D of one groove 13 does not need to be constant in the direction in which it extends (y direction), and the depth may vary.

[0027] Furthermore, the grooves 13 have the following form. Fig. 4 shows an enlarged view of one of the grooves 13 in Fig. 3. However, to make it easier to see the auxiliary lines, hatching has been omitted in Fig. 4 and the subsequent figures. In the cross section, the groove 13 has a first inclined portion S1 extending from one widthwise end W1 to the deepest portion D1, and a second inclined portion S2 extending from the other widthwise end W2 to the deepest portion D1. And the line segment W connecting W1 and W2 12 Consider a line segment W1D1 (corresponding to S1 in this embodiment) connecting W1 and D1, and a line segment W2D1 (corresponding to S2 in this embodiment) connecting W2 and D1. 12 The angle between and the line segment W1D1 is θ1, and the line segment W 12 When the angle between the line segment W2D1 and the line segment W2D1 is θ2, θ1 is larger than θ2. In other words, the first inclined portion S1 and the second inclined portion S2 are configured to be different from each other and not symmetrical with respect to the deepest part D1.

[0028] Further, other forms of the first inclined portion S1 and the second inclined portion S2 and the method of obtaining θ1 and θ2 therefrom will be described below with reference to Fig. 5 to Fig. 7. All of the figures are taken from the same viewpoint as Fig. 4.

[0029] 5 is a case where the deepest part has a predetermined width. In such a case, the center of the width of the deepest part is taken as the deepest part D1, and the line segments W1D1 and W2D1 are defined.

[0030] The form in Fig. 6 is a case where the first inclined portion S1 and the second inclined portion S2 are curved. In such a case, the line segments W1D1 and W2D1 may be defined in the same manner as described above and in Fig. 5. In this case, the line segments W1D1 and W2D1 are equivalent to representing (substituting) the non-linear first inclined portion S1 and the second inclined portion S2 that have been smoothed when determining the angles θ1 and θ2.

[0031] 7 is a case where the first inclined portion S1 and the second inclined portion S2 (hereinafter also referred to as "inclined portion S1" and "inclined portion S2") are stepped in a cross section (hereinafter also referred to as simply "cross section") perpendicular to the extension direction of the groove 13. In such a case, when determining the angles θ1 and θ2, the line segments W1D1 and W2D1 can be defined in the same manner as above to represent (substitute) the first inclined portion S1 and the second inclined portion S2, which are non-linear, by smoothing them. In the embodiment of Fig. 7, both the inclined portion S1 and the inclined portion S2 have such a stepped shape, but it is also possible that only one of the inclined portions (for example, only the first inclined portion S1) has a stepped shape, and the other inclined portion (for example, the second inclined portion S2) has a linear or curved cross-sectional shape as shown in Fig. 4 or 6. In the cross-sectional shape of the groove 13, a shape in which at least one of the inclined portions S1 and S2 has a stepped shape is particularly suitable from the viewpoint of reproducing the appearance of the fine structure of cracks and steps on the surface of a wood board whose surface has been burned and carbonized, as typified by burnt cedar.

[0032] Figures 8 and 9 show other examples in which the inclined surface is stepped. In Figure 8, only the first inclined portion S1 has a stepped portion, and the second inclined portion S2 has no stepped portion and is configured with a gentle, continuous curved slope. FIG. 9 shows an example in which part of the first inclined portion S1 and part of the second inclined portion S2 are stepped, and the remaining parts are not stepped.

[0033] 10 shows a case where W1 and W2 are different in thickness direction positions (z-direction positions) in one groove 13. In this case as well, the line segment W connecting W1 and W2 12 Consider a line segment W1D1 (corresponding to S1 in this embodiment) connecting W1 and D1, and a line segment W2D1 (corresponding to S2 in this embodiment) connecting W2 and D1. 12 The angle between and the line segment W1D1 is θ1, and the line segment W 12 When the angle between the line segment W2D1 and the line segment W2D1 is θ2, θ1 is larger than θ2. In other words, the first inclined portion S1 and the second inclined portion S2 are configured to be different from each other and not symmetrical with respect to the deepest part D1. In this embodiment, the position of W1 is higher than the position of W2, but the present invention is not limited to this and the position of W1 may be lower than the position of W2.

[0034] The first inclined portion S1 and the second inclined portion S2 may have a form different from the example form shown above. Also, the first inclined portion S1 and the second inclined portion S2 may have different forms in a certain groove 13. In such a form, θ1 and θ2 are defined in the same manner as above.

[0035] Here, the range of θ1 is not particularly limited, but is preferably 10° or more and 45° or less. If θ1 exceeds 45°, when ink is filled and arranged in grooves 13 by a wiping method described below to form ink portion 14, the ink at the bottom of groove 13 may be scraped off and disappear, which may reduce the effect of providing shading to groove 13 and the appearance of a three-dimensional feel to the decorative material. Also, if θ1 is less than 10°, the amount of ink itself in ink portion 14 will be small, which may reduce the effect of providing shading to groove 13 and the appearance of a three-dimensional feel to the decorative material. The range of θ2 is not particularly limited, but is preferably 5° or more and 30° or less. If θ2 exceeds 30°, the angle difference between θ1 (preferably a maximum of 45°) and θ2 becomes small, and furthermore, the ink thickness difference of the ink part 14 between the first inclined portion S1 and the second inclined portion S2 becomes small, and the ink concentration gradient of the ink part 14 in the groove 13 becomes small, which may reduce the effect of imparting the shadow to the groove 13 and the three-dimensional appearance of the decorative material. Furthermore, if θ2 is less than 5°, the amount of ink itself in the ink part 14 becomes small, which may reduce the effect of imparting the shadow to the groove 13 and the three-dimensional appearance of the decorative material.

[0036] Also, it is preferable that the difference (θ1-θ2) obtained by subtracting θ2 from θ1 is 3° or more and 35° or less. In particular, when (θ1-θ2) is 7° or more, the effect of imparting shading to the grooves 13 and the appearance of a three-dimensional feel to the decorative material becomes prominent. When (θ1-θ2) is less than 3°, the difference in ink thickness of the ink portion 14 between the first inclined portion S1 and the second inclined portion S2 becomes small, and the ink concentration gradient of the ink portion 14 within the grooves 13 becomes small, which may result in a decrease in the effect of imparting shading to the grooves 13 and the appearance of a three-dimensional feel to the decorative material.

[0037] In the extension direction of the groove 13 (y direction), the shape of the first inclined portion S1, the shape of the second inclined portion S2, θ1, θ2, and the difference between θ1 and θ2 do not need to be constant, and may change in the extension direction of the groove 13. Therefore, the positional relationship between θ1 and θ2 may be reversed in the extension direction. Even in that case, the magnitude relationship can be considered in the same way.

[0038] In the embodiment shown in Fig. 2 to Fig. 16, the extension direction of the grooves 13 in plan view is preferably, although not strictly speaking, based on the y direction. And it is preferable that the direction perpendicular to the extension direction is the x direction. In particular, in the embodiment in which the decorative material 10 aims to reproduce the design and appearance of a charred cedar board, as described above, the extension direction of the grooves 13 (the y direction in the embodiment shown in Fig. 2 to Fig. 16) is arranged in a direction intersecting, preferably perpendicular to, the extension direction of the annual ring pattern (cross grain, straight grain, etc.) of the pattern design of the printed layer 16c and the vessel groove grain. By arranging the extension direction of the grooves 13 in this way, the design and appearance of the cracks and steps of the carbonized wood part that are unique to the surface of the charred cedar board can be reproduced well. This makes it easier to control the thickness distribution of the ink portion 14 disposed in the groove 13 to a form specific to the present disclosure by filling the groove 13 with ink using a specific wiping method described below.

[0039] However, even in this case, it is not necessary to be strict, and it is permissible for the direction in which the grooves 13 extend to be inclined to some extent toward the x direction with respect to the y direction, or to be non-linear or curved. Representative examples of non-linear or curved shapes include the following (1) or (2). In the case where the decorative material 10 is designed to reproduce the design and appearance of a charred cedar board, even if the planar shape of the grooves 13 is non-linear or curved as typified by the following (1) or (2), the extension direction of the grooves 13 preferably intersects with the extension direction of the tree ring pattern or vessel groove grain of the design of the printed layer 16c, and more preferably is arranged in a direction perpendicular to the extension direction.

[0040] (1) The groove 13 extends in a specific direction (e.g., y direction) and has a meandering shape in the direction perpendicular to the extending direction (x direction). For example, the planar shape of the groove 13 may be any of the following (1-1) to (1-4). (1-1): A sine wave that extends in the y direction and vibrates in the x direction. Specifically, it is expressed by the following formula. x = a sin(b y + c) + d (a, b, c, and d are constants for determining the planar shape of the groove 13.) (1-2): A square wave extending in the y direction and vibrating in the x direction. (1-3): A step wave that extends in the y direction and vibrates in the x direction. (1-4): The planar shape of the groove 13 does not have to strictly match the non-linear or curved shapes of (1-1) to (1-3) above. The planar shape of the groove 13 can be a curve obtained by modulating one or more of the amplitude, wavelength (spatial frequency), and phase of the sine wave, rectangular wave, step wave, etc. by an appropriate amount, or the shape can be appropriately deformed or distorted.

[0041] (2) The planar shape of the groove 13 is composed of lines meandering perpendicular to the direction of the cliff line, river channel, etc., extracted from maps, aerial photographs, etc. In terms of dimensions, the scale or magnification may be as required, and the shape may be appropriately modified as required.

[0042] In addition, in the direction in which groove 13 extends (for example, the y direction), both ends of groove 13 may end without reaching the outer periphery that forms the outline of decorative material 10 (the outer edge, or the four sides if the decorative material is rectangular in a plan view), or one end of groove 13 may reach the outer periphery of decorative material 10 and the opposite end may end without reaching the outer periphery of decorative material 10, or both ends may reach the outer periphery of decorative material 10.

[0043] In adjacent grooves 13, the first inclined portion S1 and the second inclined portion S2 may be adjacent to each other, or the first inclined portions S1 and the second inclined portions S2 may be adjacent to each other.

[0044] Next, we will explain the ink portion 14. As can be seen from Figures 2 and 3, the ink portion 14 is a portion consisting of ink arranged within the grooves 13. The ink can give the decorative material 10 a different appearance and feel compared to a case in which only the grooves 13 are present.

[0045] The ink portion 14 may be shaped as follows, for example. One example is as shown in Fig. 4, in which the surface 14f of the ink portion 14 in the cross section covers the first inclined portion S1 and the second inclined portion S2, and is configured to be deepest somewhere between the end W1 and the end W2. That is, the surface 14f of the ink portion 14 is shaped such that the concave surface is concave as shown in Fig. 2 in the direction in which the groove opens and in the direction of the observer of the decorative material (for example, in the case of Fig. 2, the + direction of the z axis in the same figure).

[0046] FIG. 11 shows a form in which the ink portion 14 covers the first inclined portion S1 and the second inclined portion S2 in the cross section and is flat while maintaining approximately the same z position between the end W1 and the end W2. In addition, Figure 12 shows a form in which the surface 14f of the ink portion 14 covers part of the first inclined portion S1 and the second inclined portion S2, and is concave as shown in Figure 12 in the direction in which the groove opens and in the direction of the observer of the decorative material (for example, in the case of Figure 12, the + direction of the z axis in the same figure), with part of the second inclined portion S2 being exposed. Also, although not shown, it is also possible that the ink portion 14 covers a part of the first inclined portion S1 and a part of the second inclined portion S2, leaving both the first inclined portion S1 and the second inclined portion S2 partially exposed.

[0047] In addition, when at least one of the first inclined portion S1 and the second inclined portion S2 is stepped, for example, as shown in FIG. 13, a stepped corner portion 13 OC No ink portion 14 is formed at the corner portion 13. OC It is also possible that the morphology is exposed.

[0048] In the inked portion 14 as described above, the thickness of the inked portion on the first inclined portion S1 side can be made thicker than the thickness of the inked portion on the second inclined portion S2 side. More specifically, the average thickness of the inked portion on the first inclined portion S1 is made thicker than the average thickness of the inked portion on the second inclined portion S2. In this case, it is preferable that the difference between the thickness of the ink portion on the first inclined portion S1 side (relatively thick) and the thickness of the ink portion on the second inclined portion S2 side (hereinafter also abbreviated as "ink thickness difference") is 1 μm or more, as this provides a good effect of imparting shadows to the grooves 13 and a three-dimensional appearance to the decorative material. From the viewpoint of such effect, it is particularly preferable that the ink thickness difference is 3 μm or more. Furthermore, if the ink thickness difference is 1 μm or less, the ink concentration gradient of the ink portion 14 within the grooves 13 becomes small, and as a result, there is a risk that the effect of imparting shadows to the grooves 13 and a three-dimensional appearance to the decorative material will be reduced.

[0049] Here, the "average thickness of the ink portion in the first inclined portion S1" is the value obtained by dividing the cross-sectional area of ​​the ink portion on the first inclined portion S1 in the cross section by the length of the first inclined portion S1, and the "average thickness of the ink portion in the second inclined portion S2" is the value obtained by dividing the cross-sectional area of ​​the ink portion on the second inclined portion S2 in the cross section by the length of the second inclined portion S2.

[0050] The shape of the ink portion 14 does not need to be constant along the direction in which the groove 13 extends, but may change differently, and the ink portions 14 arranged in the multiple grooves 13 may each have a different shape. A unique visual effect can be expected by changing the shape of the ink portion 14 in this way. For example, the manner in which the ink is filled into the groove 13 differs depending on the inclination angle of the first inclined portion and the inclination angle of the second inclined portion. More specifically, for example, since the difference between the inclination angle (θ1) of the first inclined portion and the inclination angle (θ2) of the second inclined portion affects the change in the filling rate of the ink into the groove 13, it is easy to form an effective gradation by changing the difference in this inclination angle. In addition, the greater the difference (height difference) between W1, W2 and D1, the more the three-dimensional effect can be emphasized, and the richer the shading expression becomes. Therefore, by combining each of these elements, the form of the filled ink changes, making it possible to express a variety of expressions.

[0051] The ink material constituting the ink portion is not particularly limited, and known ink materials can be used. For example, a vehicle containing one or more of color pigments, matte pigments, dyes, etc. can be used. The vehicle can be appropriately selected from various thermoplastic resins, thermosetting resins, and ionizing radiation curable resins.

[0052] According to the decorative material 10 described above, the shapes of the first and second inclined portions S1 and S2 of the groove 13 and the shape of the ink portion 14 arranged therein combine to cause the thickness of the ink portion 14 to gradually change in the width direction of the groove 13, the shape is asymmetric between one side and the other side in the width direction across the deepest part, the ink portion 14 on the first inclined portion S1 side tends to be thicker than the ink portion on the second inclined portion S2 side, etc., so that the change in the shape of the ink portion 14 differs between the first inclined portion S1 side and the second inclined portion S2 side, and the intensity and direction of the reflected light differ from conventional ones, resulting in a decorative material 10 that has a visually different effect from conventional ones. Similarly, the tactile sensation is also different from conventional ones. In addition, the difference (height difference) between W1, W2 and D1 creates a three-dimensional effect, resulting in richer shadow expression.

[0053] The decorative material 10 described above is an example of a single-layer structure in which the substrate 11 also serves as the pattern-forming layer 12 and the grooves 13 and the ink layer 14 are formed on the surface of the substrate 11 itself, but the layer structure of the decorative material is not limited to this, and may be a laminated structure in which the substrate 11 is laminated with the pattern-forming layer 12, which is a separate layer made of a material different from the substrate 11. In addition to the substrate 11 and the pattern-forming layer 12, which are single-layered or laminated, further layers as necessary may be laminated. Figs. 14 to 16 are diagrams for explanation. All of these diagrams are from the same perspective as Fig. 3.

[0054] 14 shows a decorative material 10a in which a pattern-forming layer 12 prepared as a separate layer made of a different material from the substrate 11 is laminated on one surface 11FS of the substrate 11 (the upper surface in the figure). The pattern-forming layer 12 may be made of the same material as the substrate 11 and may have a different thickness. In this case, for example, the substrate 11 may be a colored concealing layer and the pattern-forming layer 12 may be a colorless or colored transparent layer, thereby expressing a unique texture. Furthermore, from the viewpoint of increasing the strength of the entire decorative material, an additional substrate (second substrate) may be laminated on the substrate 11.

[0055] Fig. 15 shows a decorative material 10b in which a protective layer 15b made of a transparent resin is laminated on the outermost surface of the upper adjacent layer in the figure, which functions as the pattern forming layer 12 of the substrate 11. This can improve the weather resistance, scratch resistance, and stain resistance of the decorative material. The resin that constitutes the protective layer 15b is not particularly limited, but any transparent material among those listed in the description of the substrate 11 can be used.

[0056] 16 shows a decorative material 10c in which a printed layer 16c is laminated on the surface of the base material 11 opposite to the upper adjacent layer in the figure that functions as the pattern forming layer 12, i.e., on the lower side in the figure. In this case, if the base material 11 is colorless or colored and transparent, the printed pattern will be expressed as the pattern of the decorative material 10c, resulting in a unique expression. The design of the printed layer 16c is selected according to the design that the decorative material 10 aims to reproduce. For example, in the case where the decorative material 10 is intended to reproduce the design and appearance of the grain pattern of the surface of a wooden board, a grain pattern is adopted as the design pattern of the printed layer 16c. In particular, in the case where the decorative material 10 is intended to reproduce the design and appearance of a burnt cedar board, a grain pattern that is similar to the design and appearance of a burnt cedar board when viewed overlaid with the groove 13 and the pattern of the ink part 14 arranged in the groove is selected. In this case, it is not necessary to select the grain pattern of a natural burnt cedar board. For example, even if the printed layer 16c has a grain pattern other than that of a burnt cedar board, it is sufficient that a person who sees the decorative material 10 can feel the design and appearance of a burnt cedar board when observing the groove 13, the ink part 14, and the grain pattern of the printed layer 16c overlaid with each other. In the case of an embodiment aiming to reproduce a tiled or brickwork design appearance, a tiled or brickwork pattern is adopted as the design pattern of the print layer 16c. In the case of an embodiment aiming to reproduce a fabric-like design appearance, a fabric-like pattern is adopted as the design pattern of the print layer 16c. In the case of an embodiment aiming to reproduce a leather-grained design appearance, a leather-grained pattern is adopted as the design pattern of the print layer 16c.

[0057] The decorative material 10 of the present disclosure includes a groove 13 having characteristics such as the angles θ1, θ2, and average ink portion thickness as described above, and an ink portion 14 disposed within the groove. However, it is not necessary that all of the grooves 13 and ink portions 14 present on the surface of the decorative material 10 have the above characteristics; as long as the decorative material 10 of the present disclosure exhibits the desired appearance, an appropriate range may be selected for each decorative material. The total length of all the grooves 13 measured along the direction in which each groove 13 on the surface of the decorative material 10 extends ΣL total The total length of the grooves 13 that satisfies the specific conditions (angles θ1, θ2, average ink thickness, etc.) disclosed in this specification ΣL S The ratio of ΣL S / ΣL total In order to achieve the desired appearance of the present disclosure, ΣL S / ΣL total ≧3 / 10, and ΣL S / ΣL total It is more preferable that the groove 13 is ≧5 / 10. In particular, when the groove 13 is limited to the cracks or steps of the carbonized wood on the surface of a burnt wood board, such as a burnt cedar board, that is, ΣL total is the total length of the grooves 13 corresponding to the cracks and steps of the carbonized wood on the surface of the burnt wood board, and ΣL S L total If the total length of the groove 13 that satisfies the specific conditions of the present disclosure is ΣL S / ΣL total ≧7 / 10 is preferable, and ΣL S / ΣL total It is more preferable that it is ≧8 / 10.

[0058] In addition to the above, a layer configuration can be formed by appropriately combining a second substrate (and a third substrate), a protective layer, and a printed layer. For example, examples of such decorative materials include a decorative material in which a second substrate, a printed layer, and a substrate (pattern-forming layer) are layered in this order; a decorative material in which a second substrate, a substrate (pattern-forming layer), and a protective layer are layered in this order; and a decorative material in which a second substrate, a printed layer, a substrate (pattern-forming layer), and a protective layer are layered in this order.

[0059] Next, an example of a method for producing a cosmetic material will be described using the cosmetic material 10 as an example. However, the method for producing a cosmetic material is not limited to this. The manufacturing method described below includes a step of preparing an original image, a step of preparing a copy image, a step of preparing a plate, a step of forming grooves in the pattern forming layer, and a step of filling with ink.

[0060] In the process of producing the original image, the pattern in plan view (charred cedar pattern) to be expressed by the grooves in the pattern forming layer 12 is obtained and used as the original image.

[0061] In the process of creating a copy image, the pattern to be expressed in plan view on the surface of the base material 11 is obtained as image density (shade) and this is used as the copy image. Since the copy image is preferably digital data, if the original image is not digital data, a method is used in which the original image is read by a scanner and subjected to A / D conversion to obtain digital data in which pixels are arranged in a two-dimensional coordinate plane (x, y) and each pixel corresponds to a unique density value. Also, if the original image has been designed from the beginning using digital data using CAD or the like, that digital data can be used. Then, a program for converting the digital data from density to unevenness is used to generate and arrange patterns of each region as binary images on a two-dimensional virtual plane in correspondence with the gradation image of the pattern, thereby obtaining a copy image as digital data.

[0062] In the process of making a plate, an embossed plate (a mold for decorative materials) having a planar pattern formed by grooves 13 on its surface is produced based on a copy image. Specifically, the process of producing the concave-convex pattern comprises the following steps (1) to (5).

[0063] [(1) Grayscale image data creation process] Using the graphic design drawing software "Photoshop" (registered trademark) manufactured by Adobe Systems, Inc., grayscale image data was created in TIFF format with 8-bit image gradation (256 gradations) and a resolution of 2540 dpi. This grayscale image data is also called uneven pattern image data.

[0064] [(2) Metal roll preparation process] A metal roll 20 for embossing was prepared as shown in Fig. 17. The metal roll 20 is a hollow iron cylinder having a rotary drive shaft 21 at both axial ends, the surface of which is plated with a copper layer. The surface of the metal roll 20 was roughened by grinding with a grindstone to prevent a decrease in engraving efficiency due to specular reflection of the engraving laser light.

[0065] (3) Laser engraving process As shown diagrammatically in Figure 17, a laser beam direct engraving machine is used to engrave the surface of the metal roll 20 prepared in step (2) based on the uneven pattern image data created in step (1). This results in the formation of an uneven shape on the surface that is the same shape in plan view as the uneven pattern created by the grooves 13 on the surface of the decorative material, but is an inverse uneven shape (where the parts that correspond to the convex stripes on the decorative material become concave stripes on the embossing plate surface). Therefore, the shape that the concave-convex pattern of the embossing plate should have is an inverted form of the concave-convex relationship of the concave-convex pattern caused by the grooves 13 in the decorative material described above, and can be considered in the same way. The metal roll 20 is driven by an electric motor via its rotary drive shaft 21, and rotates around the rotary drive shaft 21 as a central axis. The surface of the metal roll 20 is scanned with a laser beam P emitted from a laser head 22. To prevent the evaporated metal from turning into powder and remaining or adhering to the surface of the metal roll 20, the laser beam is irradiated in a state in which the engraving liquid T is sprayed from an engraving liquid outlet 23 onto the laser beam irradiated area on the surface of the metal roll 20.

[0066] [(4) Electrolytic polishing process] After the engraving liquid was washed away, electrolytic polishing was carried out to remove metal residue adhering to the surface of the metal roll 20.

[0067] (5) Chrome plating process After step (4), a chromium layer having a thickness of 10 μm was formed on the surface of the metal roll by plating.

[0068] By the above steps, a plate (a molding die for decorative materials, in this embodiment an embossed plate) can be obtained, the surface of which has an inverted unevenness of the unevenness pattern formed by the grooves 13 formed on the surface of the pattern forming layer 12.

[0069] Next, in the step of forming grooves in the pattern forming layer, the prepared plate (embossing plate) is used to emboss the substrate 11 to obtain the grooves 13. The embossing may be performed by any suitable known method, and is not particularly limited. A typical method of embossing is, for example, as follows. A resin sheet made of a thermoplastic resin such as a polyolefin resin is used as the substrate. The substrate is heated and softened, and an embossing plate is pressed onto the surface of the substrate to form the concave-convex pattern of the embossing plate on the surface of the resin sheet. The resin sheet is then cooled and solidified to fix the concave-convex pattern on the resin sheet. The resin sheet with the concave-convex pattern formed thereon is then released from the embossing plate. Here, various embossing methods will be further explained. For example, there are the following methods (A) to (E).

[0070] (A) The resin sheet that serves as the base material is heated and softened, and an embossing plate is pressed against it to perform embossing. (B) The resin sheet (substrate) that serves as the surface sheet and the resin sheet (second substrate) that serves as the base sheet are thermally fused together by the heat and pressure of pressing the embossing plate, thereby performing embossing and lamination simultaneously using the doubling embossing method. (C) The resin sheet (substrate) to be used as the surface sheet is melt-extruded from a T-die and brought into contact with a cylindrical embossing plate that also serves as a cooling roller, and embossed simultaneously with the formation of the surface sheet. At this time, a resin sheet (second substrate) to be used as the base sheet inserted on the back side of the surface sheet is heat-sealed to perform doubling embossing simultaneously with the formation of the film. (D) As disclosed in JP-A-57-87318 and JP-A-7-32476, an uncured liquid material of an ionizing radiation curable resin is applied to the surface of a cylindrical embossing plate. A base sheet made of a resin sheet or the like is then placed on top of the coating, and the uncured liquid material is cured by irradiating with ionizing radiation to form a cured product. At this time, the cured product is adhered to the base sheet, and then released from the embossing plate to form a substrate made of the base sheet and the cured product on the base sheet, thereby embossing the substrate. (E) Impregnated paper, such as titanium paper, impregnated with uncured thermosetting resin such as melamine resin, is placed on a backing material such as core paper or wood plywood, and the layers are heat-pressed to laminate and integrate them to produce a thermosetting resin decorative material. At this time, an embossing plate is inserted into the surface side of the impregnated paper, and the surface is embossed at the same time as the thermosetting resin is impregnated and cured to form the decorative material.

[0071] The substrate material used in the embossing methods (A) to (C) is typically a thermoplastic resin, the substrate material used in the embossing method (D) is typically an ionizing radiation curable resin, and the substrate material used in the embossing method (E) is typically a thermosetting resin.

[0072] In the ink filling step, ink is filled into grooves 13 formed on the surface of substrate 11, and the ink is arranged in grooves 13 with a desired thickness distribution to form ink portion 14. This is done by supplying ink (in an uncured state) of the material that will become ink portion 14 to the surface of substrate 11 on which grooves 13 are formed by a coating method such as curtain flow coating or roll coating, and then scraping the ink with a doctor blade, squeegee, sponge roller, or the like to remove (wipe) excess ink outside groove 13. The method of filling and arranging ink in grooves in this way is itself a well-known method known as the "wiping" method. This makes it possible to remove excess ink and to push ink into the grooves 13. In this embodiment, this is achieved by moving the doctor blade 30 in a direction (x direction) perpendicular to the direction (y direction) in which the grooves 13 extend, as shown by the straight arrow in Fig. 18. That is, the doctor blade 30 is moved in the x direction perpendicular to the y direction in which the grooves 13 extend. This makes it possible to easily form the new shape of the ink portion 14 unique to this disclosure as described above, that is, the ink portion thickness distribution within the groove in which the ink portion thickness on the first inclined portion S1 side of the groove 13 is greater than the ink portion thickness on the second inclined portion S2 side. The ink is then cured by an appropriate method to form the decorative material 10.

[0073] The uses of the decorative materials described above are not particularly limited, and examples thereof include interior materials for buildings such as walls, floors, and ceilings; exterior materials for building exterior walls, roofs, gates, walls, and fences; surface materials for fittings such as doors, window frames, and door frames, moldings, baseboards, handrails, and other fixtures; surface materials for the housings of home appliances such as television sets and refrigerators, and office equipment such as copiers; surface materials for furniture such as chests of drawers; surface materials for containers such as boxes and plastic bottles; interior or exterior materials for vehicles, etc.; interior or exterior materials for ships, etc. [Explanation of symbols]

[0074] 10 Cosmetic materials 11 Base material 12 Pattern forming layer 13 Groove 14 Ink Department

Claims

1. A decorative material having a groove and an ink portion disposed in the groove, In a cross section perpendicular to the direction in which the groove extends, a first inclined portion extending from one end of the groove to a deepest portion of the groove, and a second inclined portion extending from the other end of the groove to a deepest portion of the groove, The angle between the line segment connecting one end of the groove to the other end of the groove and the line segment connecting one end of the groove to the deepest part of the groove is θ １ ,year, The angle between the line segment connecting one end of the groove to the other end of the groove and the line segment connecting the other end of the groove to the deepest part of the groove is defined as θ ２ , then, Said θ １ is the above θ ２ including a groove larger than the inked portion surface is recessed in a concave shape in a direction in which the groove opens in the cross section, and the average thickness of the inked portion in the first inclined portion is greater than the average thickness of the inked portion in the second inclined portion; Cosmetic materials.

2. The decorative material according to claim 1 , wherein the ink portion is disposed so as not to cover a portion of at least one of the first inclined portion and the second inclined portion in the cross section.

3. The decorative material according to claim 1 or 2, wherein at least one of the first inclined portion and the second inclined portion has a stepped shape in the cross section.

4. The decorative material according to claim 3 , wherein the ink portion is disposed so as not to cover at least one of the corner portions of the stepped shape.

5. The decorative material according to claim 1 , wherein the groove extends in a non-linear manner in a plan view.

6. The decorative material according to claim 1 , wherein the groove extends in a meandering manner in a plan view.

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