JP2019171621A - Decorative material - Google Patents

Abstract

To provide a decorative material capable of imparting a texture different from conventional ones, and specifically having a structure different from conventional ones regarding in view of a visual sense, a tactile sense, or both visual and tactile senses.SOLUTION: A decorative material includes an uneven pattern formed on a surface thereof. The decorative material includes a base material and the uneven pattern formed on one surface of the base material. A convex part forming the uneven pattern includes a first inclined plane and a second inclined plane. By linking an end of the first inclined plane and an end of the second inclined plane, an apex of the convex part forms a ridge line. If an angle formed by the first inclined plane and a sheet surface is a tilt angle θand an angle formed by the second inclined plane and the sheet surface is a tilt angle θ, θ<θis satisfied.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a decorative material, and relates to a decorative material having a texture different from the conventional one.

  There are a wide variety of design expressions in decorative materials, but as described in Patent Document 1 and Patent Document 2, for example, a crevice surface of a stone material on the surface, and a wrinkle wall surface uneven pattern by a plasterer such as cement or plaster are expressed. There is a makeup material.

  Such a decorative material is often produced by pressing an embossed plate having irregularities obtained by reversing the irregularities of the irregular pattern on the surface of the decorative material onto the surface of the base material and shaping the embossed plate. Unevenness on the surface is formed by etching. As a result, it is said that detailed expression can be performed.

Japanese Utility Model Publication No. 61-100595 Japanese Patent Laid-Open No. 2003-21816

  On the other hand, in the field of cosmetics, in recent years, there has been a diversification of preferences and demands for newer visual and tactile surface forms. From this point of view, we provide cosmetics that express design appearance and touch that have higher added value. It is hoped to do.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cosmetic material that has a different texture than before and that has a structure different from the conventional one, particularly in visual, tactile, or both visual and tactile.

  As a result of studying a cosmetic material that imitates the surface unevenness of a wall surface shape (such as wrinkles) by a plasterer such as cement or plaster, the inventor has found that the gradation of height in the uneven shape is, for example, In other words, it was found that the image is monotonous because there are only two gradations of high and low, or even if there is an inclined surface, there is only one kind of inclination angle. Based on this knowledge, the present invention was completed by embodying a pattern form different from the conventional one visually and tactilely. The present invention will be described below.

One aspect of the present invention is a decorative material having a concavo-convex pattern formed on the surface, and has a base material and a concavo-convex pattern formed on one surface of the base material to form the concavo-convex pattern. The portion has a first inclined surface and a second inclined surface, and one end of the first inclined surface and one end of the second inclined surface are connected, whereby the top of the convex portion forms a ridge line, and the first inclined surface When the angle formed between the surface and the sheet surface (P _Sheet ) is the inclination angle θ ₁ , and the angle formed between the second inclined surface and the sheet surface (P _Sheet ) is the inclination angle θ ₂ , the unevenness satisfying θ ₁ <θ ₂ It is a decorative material including a pattern.

Further, when the surface roughness of the first inclined surface in the ridge line portion is Ra ₁ and the surface roughness of the first inclined surface in the valley line portion of the recess adjacent to the ridge line is Ra ₂ , Ra ₁ > Ra ₂ seems to be satisfied. You may comprise.
Here, the surface roughness Ra (μm) means the arithmetic average roughness in JIS B 0601-2001.

  A pattern layer may be further laminated on the substrate. Further, a transparent protective layer may be further laminated on the substrate or the picture layer.

  Moreover, it can comprise so that this ridgeline may form a trace pattern by the shape where a ridgeline extends.

  Further, the ridgeline may form a stone-like pattern due to the shape of the ridgeline extending.

  You may comprise so that a pattern layer may be equipped with the pattern of a stone pattern.

  According to the decorative material of the present invention, the gradation of the height in the uneven pattern is diversified compared to the conventional, and a decorative material having a design that visually and tactilely expresses a different design appearance is realized. It becomes possible to do.

FIG. 1 is an enlarged plan view showing a part of the surface of the decorative material 10. 2A is a cross-sectional view of the decorative material 10, and FIG. 2B is an enlarged view of a part of FIG. FIG. 3 is a diagram for explaining θ ₁ and θ ₂ in an uneven pattern including a first inclined surface and a second inclined surface that constitute the uneven pattern of the decorative material. 4A is a plan view for explaining the relationship between the surface roughness at the ridge line portion and the valley line portion, and FIG. 4B is a cross-sectional view for explaining the relationship between the surface roughness at the ridge line portion and the valley line portion. FIG. 5 is a cross-sectional view of the decorative material 20. FIG. 6 is a perspective view of a part of the decorative material 30. FIG. 7A is a plan view of the decorative material 40, and FIG. 7B is a perspective view of a part of the decorative material 40. FIG. 8 is a diagram for explaining a scene in which irregularities are formed on a mold by a laser. FIG. 9 is an example of the embossed plate, and is a plan view of a part of the embossed plate for producing the decorative material 40. FIG. 10A and FIG. 10B are diagrams illustrating another example of the layer configuration of the decorative material 10. FIG. 11 is an enlarged plan view showing a measurement part of the decorative material of the example.

  Hereinafter, the present invention will be described based on embodiments shown in the drawings. However, the present invention is not limited to these forms. In the drawings shown below, the size and ratio of members may be changed or exaggerated for easy understanding. In addition, for ease of viewing, illustrations of parts unnecessary for description and repetitive symbols may be omitted.

FIG. 1: is the figure (plan view) which expanded a part of cosmetic material 10 concerning a 1st form, and planarly viewed from the uneven | corrugated pattern side. For convenience, FIG. 1 also shows arrows (x, y, z) representing directions, that is, coordinate systems. Here, the xy direction is the in-plane direction of the decorative material 10, and the z direction is the thickness direction, that is, the normal direction of the in-plane direction (xy plane). Accordingly, FIG. 1 is a view of the decorative material 10 as viewed from the z direction on the uneven pattern side.
As can be seen from FIG. 1, the decorative material 10 of this embodiment is provided with an uneven pattern on the surface of a wall coating processed with a pestle or the like using cement, wall soil, plaster or the like by a plasterer.

FIG. 2A shows a cross section in the thickness direction of the decorative material 10 along the line indicated by IIa-IIa in FIG. 1 (that is, a surface cut along one surface parallel to the zx plane). This figure is a cross section cut in a straight line so as to cross the ridge line 13 a formed by the top of the convex portion 13 in the concave-convex shape of the substrate 11. Such a cross section may be referred to as a main cut surface.
2B is a part of FIG. 2A, and attention is paid to the periphery of the ridge line 13a formed by the top of one convex portion 13 and the valley line 14a formed by the bottom of one concave portion 14. The enlarged figure is shown.

  As can be seen from FIG. 1 and FIG. 2, the decorative material 10 of the present embodiment has a concavo-convex shape in which the convex portion 13 and the concave portion 14 are repeated on the surface, and the ridge line 13 a and the concave portion 14 formed by the top of the convex portion 13. The valley line 14a formed by the valley bottom represents a three-dimensional relief pattern with a scarlet tone by the plasterer.

  Specifically, the decorative material 10 has a base material 11, and has a concavo-convex pattern composed of convex portions 13 and concave portions 14 on the surface of one surface of the base material 11. Hereinafter, each configuration will be described in detail.

  The base material 11 is a member having a function of imparting strength to the decorative material 10 while supporting the uneven pattern. The form of the substrate 11 may be any of a film, a sheet, or a plate. In general, the film is called film, sheet, and plate in order from a relatively thin thickness. However, in this embodiment, the difference depending on the thickness of the base material is not an essential matter but an important matter. Absent. Therefore, in the present specification, any of the terms film, sheet, and plate is appropriately replaced with other terms, and the essence of the present invention and the interpretation of the claims are unchanged.

  Since the base material 11 should just have a function similar to a conventionally well-known decorative material, the material is not specifically limited. For example, the base material is usually polyethylene, polypropylene, olefinic thermoplastic elastomers, polyolefin resins such as ionomers, acrylic resins such as polymethyl methacrylate and polybutyl methacrylate, thermoplastics such as polyethylene terephthalate and polybutylene terephthalate. Polyester resin, thermoplastic urethane resin, vinyl chloride resin, ABS resin (acrylonitrile-butadiene-styrene copolymer), thermoplastic resin such as styrene resin, melamine resin, unsaturated polyester resin, two-component curable urethane resin, epoxy resin Such as thermosetting resins such as radical polymerization type acrylate type or cationic polymerization type epoxy type monomers and prepolymers, etc., which are cured with ionizing radiation (ultraviolet rays, electron beams, etc.) It is needed. In addition, when the material of a base material is resin, you may color with a well-known coloring agent. In addition, paper, non-woven fabric, metal, wood and the like can be used by appropriately laminating with the above resin material in the form of a sheet, a plate, a three-dimensional object or the like.

  Further, as the base material 11, a paper sheet or a fiber sheet such as a nonwoven fabric, a woven fabric, or a knitted fabric made of synthetic resin or glass fiber, melamine resin, phenol resin, urethane resin, epoxy resin, unsaturated polyester resin, diallyl phthalate It is also possible to use a composite (so-called thermosetting resin decorative material, FRP, etc.) that has been impregnated and cured with a thermosetting resin such as a resin.

  Although there is no restriction | limiting in particular in the thickness of a base material, in the case of a sheet-like base material or a film-like base material, thickness is 20 micrometers or more and about 1000 micrometers or less, for example, in the case of a plate-shaped base material, it is about 1 mm or more and about 20 mm or less. Things can be used.

As can be seen from FIGS. 2 (a) and 2 (b), the concavo-convex pattern is formed by repeating convex portions 13 and concave portions 14. FIG.
The convex portion 13 is formed by connecting one end of the first inclined surface 15 and one end of the second inclined surface 16 at the top, and this top forms the ridge line 13a. On the other hand, the recess 14 is formed by connecting the other end of the first inclined surface 15 and the other end of the second inclined surface 16 at a valley bottom, and this valley bottom forms a valley line 14a. Thereby, the convex part 13 and the recessed part 14 are repeated alternately, and the ridgeline 13a and the trough line 14a are repeated alternately.
And it becomes the form which has a desired pattern by extending this ridgeline 13a and the valley line 14a in a predetermined | prescribed shape in the sheet surface direction. In this embodiment, the ridgeline 13a and the valley line 14a extend as shown in FIG.

Here, as shown in FIG. 2B, the first inclined surface 15 is in the sheet surface direction on the sheet surface P _Sheet (P ² _Sheet shown in FIG. 2B), that is, in FIG. Has an inclination angle of θ ₁ with respect to a direction parallel to the xy plane or a virtual plane parallel thereto. On the other hand, as shown in FIG. 2B, the second inclined surface 16 has an inclination angle of θ ₂ with respect to a direction parallel to the in-sheet direction in the sheet surface P _Sheet . In the figure, the section in the sheet plane direction is indicated by a dotted line extending in parallel to the x direction.
Incidentally, since the angle between the seat surface and the first inclined surface 15, it is referred to as a tilt angle theta ₁ or abbreviated inclination angle theta ₁ with the first inclined surface 15. Further, the angle between the seat surface and the second inclined surface 16 the second inclined surface 16 inclined angle theta ₂ or short of is referred to as a tilt angle theta _2. Further, the inclination angle θ ₁ and the inclination angle θ ₂ are collectively referred to as an inclination angle or inclination angles θ ₁ and θ ₂ .

Here, “sheet surface P _Sheet ” refers to a surface that represents a direction extending (expanding) in a plane when the cosmetic material is viewed as a whole. In the case of a normal decorative material, the surface obtained by smoothing the envelope surface of the surface of the concavo-convex pattern by the least square method or the like is often a flat surface. In this case, a plane obtained by smoothing the envelope surface and an arbitrary plane parallel to the plane correspond to the sheet surface. In addition, as shown in FIG. 2B, when the surface opposite to the uneven pattern of the decorative material (so-called back surface) is a smooth plane, the surface opposite to the uneven pattern of the decorative material and the surface Any parallel surface can be used as the sheet surface.
In addition, in the case of a non-planar surface typified by a curved surface, a surface obtained by smoothing the envelope surface or the surface opposite to the concave-convex pattern, the once smoothed envelope surface or the once smoothed opposite surface, Further, a surface that is planarized by the least square method or the like is defined as a sheet surface.

In the present invention, as the sheet surface P _{Sheet serving as} a measurement standard for defining the inclination angle, a sheet surface that intersects both the first inclined surface 15 and the second inclined surface 16 is selected. Among them, the difference in inclination angle between the first inclined surface 15 and the second inclined surface 16 has the greatest influence on the visual and tactile sensations in the vicinity of the ridge line 13a (top), and therefore the inclination angle θ ₁ and the inclination angle θ _2. It is preferable to select a surface close to the ridge line 13a as the sheet surface P _{Sheet serving as} a measurement standard for defining the above. Considering this point, the sheet surface P _Sheet to be used as the measurement standard for the inclination angle is selected as in the following (1) to (6), and the inclination angle θ ₁ and the inclination angle θ ₂ are obtained.

(1)
First, with respect to the specific convex portion 13 to be measured for the inclination angle θ ₁ and the inclination angle θ ₂ , the extension distance L in the sheet surface direction of the first inclined surface 15 and the second inclined surface 16. _{15 to} L ₁₆ (this corresponds to the length in the inclined direction (x direction in the figure) for the orthogonal projection of the inclined surface onto the sheet surface P _Sheet ), the shorter distance L _short (= min (L ₁₅ , L ₁₆ )) is selected. Here, min (a, b) is an operator that selects the smaller one of the two values a and b. In the case of FIG. 2B, since L _short = min (L ₁₅ , L ₁₆ ) = L ₁₆ , the second inclined surface 16 is selected.

(2)
Next, the magnitude relationship between L _short and 4/3 mm = 1.33333... Mm is clarified. Although it is an effective number of digits of 4/3 mm, it is sufficient to set it to 1.3 mm in consideration of the measurement accuracy with a general-purpose measuring instrument and the discrimination threshold for difference detection between visual and tactile sensations.

(3)
The specific sheet surface P ² _Sheet that is a sheet surface intersecting with both the first inclined surface 15 and the second inclined surface 16 as represented by P ² _Sheet in FIG. Select. Specifically, this is done as follows.
(3-1) In the case of L _short > _4/3 mm (≈1.3);
Starting from the ridge line 13a, it intersects with both the first inclined surface 15 and the second inclined surface 16 at a distance of 1 mm from the ridge line in the sheet in-plane direction (in the x direction in the figure). The sheet surface to be used is a specific sheet surface.
(3-2) L _short ≦ _4/3 mm (≈1.3);
Starting from the ridge line 13a, in the sheet in-plane direction (in the x direction in the figure), (1/4) × L _short ≦ distance in the sheet surface from the ridge line ≦ (3/4) × L _short distance In this case, a sheet surface that intersects both the first inclined surface 15 and the second inclined surface 16 is defined as a specific sheet surface.

(4)
The triangular prism formed of the first inclined surface 15, the second inclined surface 16, and the specific sheet surface P ² _Sheet is the triangular prism on the main cutting plane of the ridge line 13a (in the drawing, the zx plane or a plane parallel thereto). And a triangle formed by intersecting the orthogonal plane.

(5)
An internal angle formed by a base corresponding to the specific sheet surface P ² _Sheet in the triangle and a side corresponding to the first inclined surface 15 is defined as an inclination angle θ ₁ of the first inclined surface 15. Similarly, an inner angle formed by a base corresponding to the specific sheet surface P ² _Sheet in the triangle and a side corresponding to the second inclined surface 16 is defined as an inclination angle θ ₂ of the second inclined surface 16.

(5-1)
The case where the first inclined surface 15 and the second inclined surface 16 are flat as shown in FIG. 2 (a straight line in the main cutting surface) and the ridge line 13a is a straight line (this form is not shown) is as described above.

(5-2)
On the other hand, in the actual uneven pattern, at least one of the first inclined surface 15 and the second inclined surface 16 is non-planar (non-linear in the main cut surface as shown in FIG. 2) in at least a partial region. There are many more. Therefore, in the case of such a non-planar surface, the following is considered.
At that time, when either the first inclined surface 15 or the second inclined surface 16 has a rough surface and becomes a rough surface, a surface obtained by smoothing the rough surface by an appropriate method such as a least square method. Ask for. In this case, a surface obtained by smoothing the first inclined surface 15 is referred to as a smoothed first inclined surface 15S, and a surface obtained by smoothing the second inclined surface 16 is referred to as a smoothed first inclined surface 16S. Based on the properties of the smoothed first inclined surface 15S and the smoothed second inclined surface 16S, the following is considered.

(5-2-1)
When the smoothed first inclined surface 15S or the smoothed first inclined surface 16S is a flat surface, the inclination angle is determined in the same manner as in the case where the above-described inclined surface is flat with respect to the smoothed inclined surface 15S or the inclined surface 16S. Find θ ₁ or θ ₂ .

(5-2-2)
On the other hand, when either the smoothed first inclined surface 15S or the smoothed first inclined surface 16S is a non-planar surface such as a curved surface, the following is performed.
(5-2-2a)
For the smoothed first inclined surface 15S or the smoothed second inclined surface 16S to be non-planar, as shown in FIG. 3, the ridge line 13a (the point (vertex) corresponding to) and the valley line 14a (the point corresponding to) Connect and determine a plane perpendicular to the main cutting plane. In the main cutting plane as shown in FIG. 3, this corresponds to drawing a straight line connecting a point corresponding to the ridge line 13a and a point corresponding to the valley line 14a. This is referred to as a planarized smoothed first inclined surface 15P and a planarized second smoothed inclined surface 16P.
(5-2-2b)
Thereafter, the smoothed first inclined surface 15S or the smoothed second inclined surface 16S that is non-planar is replaced with the smoothed first inclined surface 15P or the flattened second smoothed inclined surface 16P. Thereafter, the inclination angle θ ₁ or θ ₂ is obtained by the same method as in the case where the inclined surface is a plane.

(6)
Next, the presence or absence of distribution in the sheet in-plane direction in the uneven pattern is confirmed, and the inclination angle is determined. In that case, it considers as follows by the characteristic of the inclination angle in an uneven | corrugated pattern.

(6-1)
If, when the inclination angle theta ₂ of the inclination angle theta ₁ and the second inclined surface 16 of the first inclined surface 15 in the uneven pattern has the same value in the entire region in the sheet surface, at any point in the uneven pattern The values of the inclination angle θ ₁ and the inclination angle θ ₂ may be used as the inclination angle θ ₁ and the inclination angle θ ₂ that represent the uneven pattern.

(6-2)
On the other hand, if the inclination angle theta ₂ of the inclination angle theta ₁ and the second inclined surface 16 of the first inclined surface 15 in the uneven pattern when different depending on the location in the sheet surface, the following as.
(6-2a)
First, an arbitrary portion of an arbitrary one of the ridge lines 13a is selected in the concavo-convex pattern. Among the selected portions of the ridge line, the values of the inclination angle θ ₁ and the inclination angle θ ₂ are obtained by the above method at 10 arbitrary different locations, and the selected portion of the ridge line is obtained with the average value of the 10 points. The inclination angle θ ₁ and the inclination angle θ ₂ of FIG.
(6-2b)
Next, an arbitrary portion of another arbitrary one of the ridge lines in the concavo-convex pattern is selected, and the inclination angle θ ₁ and the inclination angle θ ₂ of the selected portion of the ridge line are obtained as an average value of 10 points.
(6-2c)
If such a measurement has about 5 to 10 selection portions of a plurality of ridge lines to the extent that the dispersion of the 10-point average values of the inclination angle θ ₁ and the inclination angle θ ₂ has been sufficiently converged, the 10 The point average value can be regarded as converged.
(6-2d)
After that, the ten-point average values of the obtained number of inclination angles θ ₁ and inclination angles θ ₂ are further averaged for each inclination angle θ ₁ and inclination angle θ ₂ , and the inclination of the concavo-convex pattern is obtained. The values of the angle θ ₁ and the inclination angle θ ₂ are used.

With the above (1) to (6), the specific sheet surface P ² _Sheet to be used as the measurement standard for the inclination angle is selected, and the inclination angle θ ₁ and the inclination angle θ ₂ are obtained.

In this embodiment, it is configured to have a relationship of θ ₁ <θ ₂ . As a result, since the gradation of the height in the concavo-convex pattern is limited as in the prior art, it is avoided that it is monotonous, and a cosmetic material with a rich appearance that is closer to the scars of cement, plaster, etc. by an actual plasterer is obtained. And less discomfort about the appearance. Moreover, it becomes a different cosmetic material from the same viewpoint from the viewpoint of touch.

Although the magnitude | size of specific inclination-angle (theta) ₁ and inclination-angle (theta) ₂ is not specifically limited, It is preferable that inclination-angle (theta) ₁ is 10 degrees or less larger than 0 degree. In addition, the inclination angle θ ₂ is preferably greater than 10 ° and 80 ° or less.
Further, the difference between the inclination angle θ ₁ and the inclination angle θ ₂ is not particularly limited, but the larger one is more effective from the viewpoint of visual and tactile sensation. Preferably, the difference is not less than 5 ° and not more than 70 °.

Here, the interval between the adjacent convex portions 13 (corresponding to the sum L ₁₅ + L ₁₆ of the lengths of orthogonal projections of the two inclined surfaces 15 and 16 on the sheet surface P _sheet in FIG. 2B) is to be expressed. Therefore, there is no particularly preferable range, and the size necessary for expression can be set as appropriate, and it may be regular or irregular. However, from the viewpoint of reproducing the appearance of a normal crease-like and stone-like concavo-convex pattern, the interval between the convex portions 13 is preferably in the range of 5 mm to 200 mm.
The difference in the thickness direction (z-direction) of FIG. 2 (b) and the ridge line 13a and the valley line 14a shown in H _1, i.e. the thickness direction of the height difference gradient (or level difference) are also rather limited in particular It is determined by the angle θ ₂ and the interval between the convex portions 13. Among them, it is generally preferable that the height difference is large from the viewpoint of sufficient visibility of the pattern formed on the decorative material, the appearance of the design, and the reproducibility of the touch. However, on the other hand, it is generally preferable that the height difference is small in terms of the ease of forming the uneven pattern on the substrate 11. That is, in general, as the height difference increases, it becomes more difficult to manufacture the plate and to faithfully form the uneven pattern of the plate on the base material. And the minimum thickness of the base material which can shape a concavo-convex pattern also increases. Therefore, from the viewpoint of compatibility between reproducibility and ease of shaping the design appearance, it is preferable height difference H ₁ is on the order or 1000μm or less 1 [mu] m.

In the first embodiment, the fan-like finish by the scars by the plasterer is exemplified as the uneven pattern. However, in the present invention, so-called stucco tone, wave finish, fan finish, etc., plastered surface uneven pattern formed on the surface of the finished surface such as cement, plaster, wall soil, etc., granite It is possible to simulate the uneven pattern on the cleaved surface of the polycrystalline stone plate such as the surface or the uneven surface pattern on the stone fracture surface of various stone plates such as limestone, marble (crystalline limestone) and sandstone.
In addition, the concavo-convex pattern expressed in the present invention does not necessarily have the same concavo-convex shape or concavo-convex structure as the actual concavo-convex pattern. In short, in the present invention, it is only necessary that the observer can perceive the design appearance and / or tactile sensation similar to the uneven pattern to be expressed.

Furthermore, it is preferable that the concavo-convex pattern is configured as follows. FIG. 4A and FIG. 4B show diagrams for explanation. 4A is an enlarged plan view showing the range indicated by IVa in FIG. 1, and FIG. 4B is a sectional view from the same viewpoint as FIG. 2B.
As indicated by A, of the first inclined surface 15 of the concavo-convex pattern, the surface roughness Ra in a predetermined linear range of the length in the direction along the ridge line 13a at a site close to the ridge line 13a and Ra _1.
Further, as shown by B, in the concavo-convex pattern, in the direction along the valley line 14a on the first inclined surface 15 near the valley line 14a across the edge line 13a close to A and the valley line 14a adjacent thereto. the surface roughness Ra in the linear range of the predetermined length and Ra _2.
Then, it is preferable that the relationship such Ra ₁ and Ra ₂ is _Ra 1> Ra _2. That is, with respect to the first inclined surface 15 having a relatively slow inclination, it is preferable that the ridge line side (near the ridge line 13a) is a relatively rough surface rather than the valley side (near the valley line 14a). Thereby, it is visually different from the viewpoint of gloss, and it is also different from the tactile sense. In particular, an effective and rich expression can be achieved when expressing the outer surface and the tactile sensation of the dent pattern surface uneven pattern of the plastering work or the crevice pattern of the polycrystalline stone plate surface.

Here, the surface roughnesses Ra ₁ and Ra ₂ are measured as follows.
As in the case of the inclination angle theta ₂ of the first inclined surface 15 inclined angle theta ₁ and the second inclined surface 16 of the, degree of influence of the difference in surface roughness on the visual and tactile sensation ridge 13a (top) is the largest near For this reason, it is preferable to select a surface close to the ridge line 13a as a position for measuring the surface roughness Ra ₁ and Ra ₂ . However, the influence on the visual and tactile sensations is slightly different between the inclination angle and the surface roughness. Considering this point, the measurement positions and measurement conditions for the surface roughness Ra ₁ and Ra ₂ are selected as follows. Here, the surface roughness Ra (μm) means the arithmetic average roughness in JIS B 0601-2001.

As described above in the description of the measurement of the inclination angle θ ₁ and the inclination angle θ ₂ , the extension distance in the sheet surface direction between the first inclined surface 15 and the second inclined surface 16 in the surface roughness measurement portion. Among L _{15 to} L ₁₆ (corresponding to the inclination direction length of the orthogonal projection of the inclined surface onto the sheet surface P _Sheet shown in FIG. 2B), a shorter distance L _short is obtained.

In the case of L _short> 4 mm, for the surface roughness Ra ₁ site near the ridge line 13a of the first inclined surface 15, on the first inclined surface 15, the distance from the edge line 13a _{(L A)} is within 2mm the straight line in the region, the measured length _{L C} 4 mm, a value measured at 0.8mm cutoff value.
On the other hand, for the surface roughness Ra ₂ of the portion near the valley line 14a of the first inclined surface 15, on the first inclined surface 15, on the straight line in the region where the distance (L _B ) from the valley line 14a is within 2 mm. , the measured length _{L D} 4 mm, a value measured at 0.8mm cutoff value.

In the case of L _short ≦ 4 mm, the surface roughness Ra ₁ of the portion near the ridge line 13a of the first inclined surface 15 has a distance (L _A ) from the ridge line 13a on the first inclined surface 15 of L _A ≦ (1/2) × _{L short,} more preferably, a straight line in the region of _{L a ≦ (1/4) × L} short, was measured measurement length _{L C} 4 mm, the cut-off value at 0.8mm Value.
On the other hand, for the surface roughness Ra ₂ of the portion near the valley line 14a of the first inclined surface 15, the distance (L _B ) from the valley line 14a on the first inclined surface 15 is L _B ≦ (1/2 ) × _{L short,} more preferably, a straight line in the region of _{L B ≦ (1/4) × L} short, 4mm measurement length _{L D,} a value measured at 0.8mm cutoff value.

Specific sizes of Ra ₁ and Ra ₂ are not particularly limited, but Ra ₁ is preferably 0.02 μm or more and 20 μm or less. Ra ₂ is preferably 0.005 μm or more and 5 μm or less.
Further, the difference between Ra ₁ and Ra ₂ is not particularly limited, but the larger one is more effective from the viewpoint of visual and tactile sensations. The difference is preferably 0.02 μm or more, more preferably 0.5 μm or more, and further preferably 5 μm or more.

FIG. 5 shows a diagram for explaining the decorative material 20 of the second form. FIG. 5 is a view from the same viewpoint as FIG. In addition, about the same structure as the cosmetic material 10 which is a 1st form here, the same code | symbol is attached | subjected and description is abbreviate | omitted.
In the decorative material 20, a pattern forming layer 12, a pattern layer 21, and a transparent protective layer 22 are further laminated on the configuration of the decorative material 10.
The pattern forming layer 12 is a layer that is laminated on one surface of the base material 11 and imparts a pattern to the decorative material. In this embodiment, the pattern forming layer 12 has a predetermined uneven shape to form an uneven pattern. When the base material 11 itself has the formability of the concavo-convex pattern (acceptability of the concavo-convex pattern), as described above, the concavo-convex pattern is directly formed on the base material 11 without providing the pattern forming layer 12 separately from the base material 11. A form for forming a pattern may be employed.

The pattern layer 21 is a layer on which a pattern (design) is applied, and is laminated on the first inclined surface 15 in this embodiment.
The concrete pattern in the pattern layer 21 is a grain pattern represented by wood grain, stucco, fan finish, etc., cleaved surface of a rock plate such as granite, marble, sandstone, etc. Various patterns such as tones, color patterns, photographs, paintings, drawings or geometric patterns, fabrics represented by various fabrics and non-woven fabrics, genuine leather, artificial leather, wrinkle resin, etc. be able to. For example, if a pattern with a predetermined expression (in the present embodiment, a scarlet tone) is formed by the pattern forming layer 12, a pattern matched to this pattern can be obtained. In that case, the pattern according to the unevenness | corrugation of the pattern formation layer 12 may be sufficient, and the pattern different from the unevenness | corrugation of the pattern formation layer 12 may be sufficient.
Such a design of the pattern layer 21 can be formed by an ink layer formed by printing such as gravure printing, silk screen printing, and ink jet printing.

What is necessary is just to select suitably as ink which comprises the pattern layer 21 according to the color tone of a pattern and the required physical property from well-known things. As the ink binder resin, for example, an acrylic resin, a vinyl chloride-vinyl acetate copolymer, a cellulose resin, a urethane resin, a polyester resin, or the like can be used alone or in combination of two or more.
Examples of colorants (pigments, dyes, etc.) include white colorants such as titanium white and zinc white, black colorants such as carbon black (black), iron black, and azomethine azo pigments, yellow lead, titanium yellow, and polyazo. Yellow colorants such as yellow, isoindolinone yellow, nickel azo complex, red colorants such as petals, cadmium red, polyazo red, quinacridone red, blue colorants such as ultramarine, cobalt blue, phthalocyanine blue, aluminum, brass, etc. A colorant such as a metallic pigment comprising a flake-like foil piece, a pearlescent pigment comprising a scaly foil piece such as titanium dioxide-coated mica and basic lead carbonate can be used.
In addition, an appropriate amount of various additives such as a plasticizer, a surfactant, a heat stabilizer, an ultraviolet absorber, a light stabilizer, and a lubricant can be added as necessary.

The transparent protective layer 22 is a layer that protects the pattern layer 21 and the pattern forming layer 12 from contamination, scratches, and the like, and can be made of a transparent resin, transparent glass, or the like.
In the case of using a transparent resin, for example, a layer made of a thermoplastic resin or a cured resin can be exemplified.
Note that the transparent protective layer 22 is omitted when the substrate 11, the pattern forming layer 12, and the pattern layer 21 alone can ensure sufficient surface durability such as contamination resistance and scratch resistance in the intended application. be able to.

  Examples of the thermoplastic resin include acrylic resins such as polymethyl (meth) acrylate and polyethyl (meth) acrylate, polyolefin resins such as polypropylene and polyethylene, fluorine resins such as polyvinyl fluoride and polyvinylidene fluoride, polyethylene terephthalate ( PET), polyester resins such as polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polycarbonate resin, vinyl chloride resin, acrylonitrile-butadiene-styrene resin (ABS resin), acrylonitrile-styrene-acrylic ester resin, etc. Can be mentioned. Note that “(meth) acryl” means acrylic or methacrylic.

The layer made of curable resin is a layer obtained by curing the curable resin composition, and the curable resin composition is a composition containing a curable resin. Examples of the curable resin composition include a thermosetting resin composition containing a thermosetting resin, an ionizing radiation curable resin composition containing an ionizing radiation curable resin, and the like.
Examples of the thermosetting resin include unsaturated polyester resin, polyurethane resin (including two-component curable polyurethane), epoxy resin, amino alkyd resin, phenol resin, urea resin, diallyl phthalate resin, melamine resin, guanamine resin, Examples include melamine-urea cocondensation resin, silicon resin, polysiloxane resin, and the like. The thermosetting resin composition contains components involved in the curing reaction of the thermosetting resin, for example, a catalyst, a curing agent (including a crosslinking agent, a polymerization initiator, a polymerization accelerator, etc.) and the like as necessary. May be.
An ionizing radiation curable resin is a resin that undergoes a crosslinking polymerization reaction upon irradiation with ionizing radiation and changes to a three-dimensional polymer structure. Ionizing radiation has energy quanta that can polymerize or crosslink among electromagnetic waves and charged particle beams. In addition to ultraviolet rays (UV) and electron beams (EB), electromagnetic waves such as X-rays and γ-rays, α Although including charged particle beams such as an ion beam and an ion beam, ultraviolet rays (UV) or electron beams (EB) are usually used. Among the ionizing radiation curable resins, the electron beam curable resin can be made solvent-free, does not require a photopolymerization initiator, and provides stable curing characteristics.
Examples of the ionizing radiation curable resin include one type of monomers, oligomers, prepolymers, etc. having polymerizable unsaturated bonds such as (meth) acryloyl groups that can be cross-linked by irradiation of ionizing radiation, epoxy groups, etc. in the molecule. A composition containing the above can be used.

  The thickness of the transparent protective layer 22 is not particularly limited, but is preferably 0.1 μm or more and 20 μm or less. If it is thin, durability due to bending, etc. is high, but scratch resistance is weak, and if it is thick, it is strong against scratches and scratches, but weak against deformation such as bending, and cracks occur. The transparent protective layer 22 can be used. More preferably, it is 1 μm or more and 10 μm or less.

Even the cosmetic material 20 as described above has the same effect as the cosmetic material 10 particularly when the inclination angle satisfies the relationship of θ ₁ <θ ₂ .

FIG. 6 shows a diagram for explaining the decorative material 30 according to the third embodiment. FIG. 6 is a perspective view of a portion of the ridge line 33a and the valley line 34a cut out from the decorative material 30. FIG.
The decorative material 30 of this embodiment has a pattern forming layer 32 having a stone-like pattern. The pattern forming layer 32 also has a stone tone in the direction in which the ridge line 33a and the valley line 34a extend, following the pattern formation layer 12.
The pattern forming layer 32 also has a first inclined surface 35 and a second inclined surface 36 following the pattern forming layer 12 to form a ridge line 33a and a valley line 34a, and the inclination angle of the first inclined surface 35 is the second angle. It has an uneven shape so as to be smaller than the inclination angle of the inclined surface 36. Further, the relationship between the surface roughness in the vicinity of the ridge line 33a and the surface roughness in the vicinity of the valley line 34a is also formed so that the surface roughness in the vicinity of the ridge line is larger than the surface roughness in the vicinity of the valley line, following the pattern forming layer. It is preferable.
Thus, unlike conventional ones, a monotonous expression is avoided, and a cosmetic material having a rich appearance and less discomfort close to the actual texture can be obtained. Moreover, it is a different cosmetic material from the viewpoint of tactile sensation.

In the decorative material 30, the pattern forming layer 32 also serves as a base material, and a pattern layer 31 that expresses the design appearance of the wall surface using colored plaster made of colored ink on one surface of the single pattern forming layer 32. The transparent protective layer is omitted.
And, in this embodiment, the pattern of the pattern layer is a stone-tone pattern composed of a colored ink layer having a design appearance that matches the pattern of irregularities of a scarlet tone and having a color gradation distributed in the plane. Applied. Also in this embodiment, the uneven pattern of the pattern forming layer 32 and the pattern of the pattern layer may be different.

FIG. 7 shows a diagram for explaining the decorative material 40 according to the fourth embodiment. FIG. 7A is a plan view of the decorative material 40 corresponding to FIG. 1, and FIG. 7B is a perspective view showing a part of the decorative material 40.
As can be seen from FIGS. 7A and 7B, the decorative material 40 according to the present embodiment is an example having a grainy uneven pattern on one surface of the substrate 11. The concavo-convex pattern is used to represent the texture of the concavo-convex pattern of the decorative material 10 in the direction in which the ridge line 43a and the valley line 44a extend.
Also in the concavo-convex pattern of the decorative material 40, the first inclined surface 45 and the second inclined surface 46 are formed to follow the concavo-convex pattern of the decorative material 10 to form a ridge line 43 a and a valley line 44 a, and the first inclined surface 45 is inclined. It has an uneven shape so that the angle is smaller than the inclination angle of the second inclined surface 46. Further, the relationship between the surface roughness in the vicinity of the ridge line 43a and the surface roughness in the vicinity of the valley line 44a follows the uneven pattern of the decorative material 10 so that the surface roughness in the vicinity of the ridge line is larger than the surface roughness in the vicinity of the valley line. It is preferable to be formed.
Also in this embodiment, a concavo-convex pattern is formed on one surface of the base material 11, and a pattern (not shown) that expresses the design outer wall of the wall surface using colored plaster made of colored ink on one surface of the concavo-convex pattern The transparent protective layer is omitted.
Thus, unlike the conventional case, the conventional monotonous expression is avoided, and a cosmetic material with a rich appearance that is closer to the actual texture can be obtained. Moreover, it is a different cosmetic material from the viewpoint of touch.

Next, an example of a method for manufacturing the decorative material 10 will be described. However, the method of manufacturing the decorative material 10 is not limited to this.
The manufacturing method described below includes a step of producing a block image, a step of producing a plate, and a step of forming an uneven pattern.

In the process of creating a block image, a pattern in plan view to be expressed on the surface of the substrate 11 is acquired as an image density (light / dark), and this is used as the block image. Since the artwork image is preferably digital data, if it is not digital data, it can be obtained by using a scanner to read the original document such as a stone, surface of a plastered finish, etc. or a photograph of the original document with a scanner. Pixels are arranged in a two-dimensional coordinate plane (x, y), and digital data in which each pixel has a unique density value is obtained. Further, when a pattern is designed from the beginning using digital data using CAD or the like, the digital data can be used.
Thus, a block image is obtained as digital data.

  In the process of producing the block image, in the continuous tone density image, a linear binary image pattern is generated in the continuous tone density image based on the obtained continuous tone image having the pattern density. Are arranged such that some of the pixels become pixels constituting a ridge line or a valley line, and a ridge line and a valley line in the block image are obtained as digital data.

Specifically, for example, the following method is used. However, the present invention is not limited only to the decorative material obtained by the following method.
That is, the rate of change in image density is calculated as the position coordinates increase in each direction in the plane. The pixel at the maximum point where the image density changes from increasing to decreasing as the coordinates increase is defined as the pixel of the ridge line 13a. Further, the pixel of the minimum point where the image density is changed from the decrease to the increase with the increase of the coordinates is set as the pixel of the valley line 14a.
By performing such processing for each pixel of the continuous tone density image, image data having lines corresponding to the ridge line 13a and the valley line 14a in the continuous tone density image is obtained.

In the image data, the density value gradually increases toward the point corresponding to the ridge line 13a in the direction orthogonal to the line corresponding to the ridge line 13a in the two-dimensional coordinate plane, and the point corresponding to the ridge line 13a. The image data has a feature that the density value becomes maximum and gradually decreases from the point corresponding to the ridge line 13a.
Further, in the image data, the density value gradually decreases toward the point corresponding to the valley line 14a in the direction orthogonal to the line corresponding to the valley line 14a in the two-dimensional coordinate plane, and the valley line 14a. The image data has a feature that the density value becomes minimum at a point corresponding to, and the density value gradually increases as the point gradually departs from the point corresponding to the valley line 14a.

Then, the uneven pattern of obtaining the decorative material to be manufactured, the inclination angle theta ₂ of the first inclined plane inclination angle of 15 theta ₁ and the angle between the second inclined surface 16 the second inclined surface 16, "theta _{1 <theta} The design value of the “area ratio σ with respect to the total area of the decorative material having the area satisfying the relationship ₂ ” is set to a desired value.

Next, in the continuous tone density image processed as described above, the difference in density gradient before and after the ridge line 13a is calculated, and the difference in average density gradient in the regions on both sides sandwiching the ridge line 13a is confirmed.
Specifically, the density value at each position coordinate is obtained while gradually advancing a predetermined distance toward the ridge line 13a in a direction orthogonal to the ridge line 13a, and an average density gradient along the advanced path and distance is calculated. The predetermined distance is a distance from the adjacent valley line 14a to the ridge line 13a when the valley line 14a and the ridge line 13a are adjacent to each other. Further, the density value at each position coordinate is obtained while moving forward from the ridge line 13a toward the adjacent valley line 14a along the forward path, and the average density gradient along the forward path and distance is calculated.

  Next, the average density gradients on both sides of the specific pixel on the specific edge 13a along the forward path are compared. Such processing is performed for each pixel on each ridge line 13a.

Next, in the continuous tone density image, for the pixels on the entire ridge line 13a, the length of the portion of the ridge line 13a that satisfies the condition that the average density gradient on both sides of the ridge line 13a is different in all regions of the continuous tone density image. An integral value S integrated over the whole is obtained.
Next, the integrated value S is compared with the area ratio σ set as the design value. And whether or not the error of both has converged within a preset allowable range e, that is,
| (S−σ) / σ | ≦ e
Check whether the condition is satisfied.
If this has converged, the composition image creation is terminated. On the other hand, if it does not converge, the density of each pixel in the continuous tone density image is adjusted so that it converges.

  The ridge line generated in this way corresponds to the ridge line in the decorative material, and the area up to the adjacent valley line on one side selected by the image forming image creator with the ridge line as a reference. Is assigned to the first inclined surface, and the region up to the adjacent valley line on the other side is assigned to the second inclined surface.

In the process of making the plate, the uneven pattern of the reverse unevenness of the uneven pattern (height of the height) formed by converting the grayscale image (darkness of density value) in the plan view shape pattern into the plate depth based on the image under the plate An embossed plate (molding die for decorative material) on the surface is prepared.
And specifically, the manufacturing process of an uneven pattern consists of the following procedures (A) to (E).

[(A) Light and shade gradation image creation process]
The grayscale image data corresponding to the uneven pattern of FIG. 1 obtained as described above is obtained. This grayscale image data is also referred to as uneven pattern image data.

[(B) Metal roll preparation step]
In parallel with the step (A), a metal roll 70 for embossing engraving as shown in FIG. 8 is prepared. The metal roll 70 is obtained by plating a copper layer on the surface of a hollow iron cylinder having rotational drive shafts (shafts) 71 at both ends in the axial direction. The surface of the metal roll 70 is polished and roughened with a grindstone, and a process for preventing a decrease in engraving efficiency due to mirror reflection of the engraving laser beam is performed.

[(C) Laser beam engraving process]
As schematically shown in FIG. 8, a laser beam direct engraving machine is used to engrave the surface of the metal roll 70 prepared in step (B) based on the uneven pattern image data created in step (A). As a result, a concave / convex shape having the same planar view shape as the concave / convex pattern on the surface of the decorative material as shown in FIG. 1 and a reverse concave / convex shape (a relationship in which a portion corresponding to the convex of the decorative material is concave on the embossed plate surface) is formed on the surface. .
Therefore, the shape to be provided in the uneven pattern in the embossed plate is an aspect in which the uneven relation of the uneven pattern in the decorative material described above is reversed, and can be considered in the same manner.

The metal roll 70 is driven by an electric motor through the rotation drive shaft 71 and rotates around the rotation drive shaft 71 as a central axis. The entire surface of the metal roll 70 is scanned with fiber laser light L having an oscillation wavelength of 1024 nm, a laser spot diameter of 10 μm, and an output of 600 W emitted from the laser head 72. At that time, the laser light is switched on and off (irradiation or non-irradiation switching) according to the density value of the concavo-convex pattern image data created in the step (A), and the irradiation position is obtained by a single laser light irradiation. A recess having a depth of 10 μm is formed by evaporation of the metal. The scanning with respect to the metal roll surface by such laser light is repeated 10 times. Further, in order to prevent the evaporated metal from becoming a powder and remaining or adhering to the surface of the metal roll 70, the engraving liquid T was sprayed from the engraving liquid discharge port 73 to the laser light irradiation region on the surface of the metal roll 70. Laser light irradiation is performed in the state.
At that time, for example, in the position coordinates of the image density corresponding to the plate depth of 50 μm on the concavo-convex pattern image data, the laser beam is irradiated (ON) only for the first five out of a total of 10 scans, and the remaining 5 The batch is controlled so that the laser beam is not irradiated (OFF).

In converting the image density on the concavo-convex pattern image data corresponding to each position coordinate on the metal roll 70 to the plate depth to be engraved, first, the distribution of the desired plate depth (as a design target) on the embossing. The width (maximum plate depth-difference design plate depth, which corresponds to the maximum height difference of the decorative material surface obtained after embossing) is determined. After that, the engraving control program of the laser beam direct engraving machine is set so that the distribution width of the image density on the uneven pattern image data corresponds to the distribution width of the plate depth.
Specifically, when a portion having a high image density corresponds to a portion having a large plate depth relative to the image density on the concavo-convex pattern image data, the maximum density is set to the maximum plate depth (maximum engraving amount) and the minimum Program the density to correspond to the minimum plate depth (minimum engraving amount).
The scanning of the laser beam is completed, and a desired uneven shape is formed on the surface of the metal roll 70.

[(D) Electropolishing process]
After the engraving liquid is washed, electrolytic polishing is performed to remove metal residues attached to the surface of the metal roll 70.

[(E) Chrome plating process]
After the step (D), a chromium layer having a thickness of 10 μm is formed on the surface of the metal roll by plating.

  As described above, a plate (molding die for decorative material, embossed plate in this embodiment) having an uneven shape in which the unevenness of the uneven pattern formed on the surface of the substrate 11 is inverted can be obtained. FIG. 9 shows a plan view of a part of the embossed plate thus obtained. This embossed plate is an embossed plate for molding the decorative material 40 described above.

Next, in the step of forming the concavo-convex pattern, the decorative material 10 is obtained by embossing the base material 11 using the produced plate (embossed plate). The embossing may be performed by an appropriate known method and is not particularly limited. A typical embossing method 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 embossed plate is pressed on the surface thereof to form an uneven pattern on the surface of the resin sheet on the surface of the resin sheet. Then, the resin sheet is cooled and solidified to fix the uneven pattern on the resin sheet. Thereafter, the resin sheet with the uneven pattern is released from the embossed plate.
Here, the various embossing methods will be further described. For example, there are the following methods (a) to (e).

(A) A resin sheet to be a base material is heated and softened, and an embossed plate is pressed and embossed.
(B) Embossing and laminating by heat-sealing a resin sheet (base material) to be a surface sheet and a resin sheet (second base material) to be a base sheet by hot pressure when pressing the embossing plate Are embossed by the doubling embossing method.
(C) A resin sheet (base material) to be used as a 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 base material) serving as a base sheet inserted further on the back surface side of the top sheet is thermally fused to perform doubling embossing simultaneously with film formation.
(D) As disclosed in JP-A-57-87318, JP-A-7-32476, etc., an uncured liquid material of ionizing radiation curable resin is applied to the surface of a cylindrical embossed plate. Furthermore, an uncured liquid material is cured by irradiating with ionizing radiation in a state where a base sheet made of a resin sheet or the like is stacked thereon to obtain a cured product. At that time, after the cured product is bonded to the base sheet, it is released from the embossing plate to form a base material composed of the base sheet and the cured product on the base sheet, thereby embossing the base material.
(E) An impregnated paper obtained by impregnating a paper such as titanium paper with an uncured material of a thermosetting resin such as a melamine resin is placed on a backing material such as a core paper or a wood plywood. The layers are laminated and integrated by hot press molding the layers to produce a thermosetting resin decorative material. At that time, an embossed plate is inserted on the surface of the impregnated paper, and when the thermosetting resin is impregnated and cured to make a decorative material, the surface is embossed simultaneously with the hot press.

  Note that a thermoplastic resin is typically used as the base material used in the embossing methods (a) to (c), and a typical base material used in the embossing method (d). An ionizing radiation curable resin is used, and a thermosetting resin is typically used as the base material used in the embossing method of (e).

  The cosmetic material 10 can be obtained as described above.

  Next, a modified example of the decorative material 10 will be described. The layer structure is shown in FIGS. 10 (a) and 10 (b).

  The decorative material 10 ′ having the configuration shown in FIG. 10A has a configuration in which a decorative layer 11 a is formed on the back side of the base material 11. In order to produce the decorative material 10 ′ having such a configuration, for example, a transparent resin sheet is used as the base material 11 so that the decorative layer 11 a can be seen through, and the decorative layer is formed on the back surface of the base material 11. After printing and forming 11a, embossing may be performed by softening by heating and pressing the embossed plate on the front side.

  The decorative material 10 '' having the configuration shown in FIG. 10 (b) has a base sheet on the opposite side of the surface of the decorative layer 11a from the side where the concavo-convex pattern is arranged, as compared with the configuration shown in FIG. 10 (a). It is the example which laminated | stacked the other base material 11b to do. In order to produce the decorative material 10 '' having such a configuration, the decorative layer 11a is printed on the surface of the base 11b made of a colored opaque thermoplastic resin sheet as a base sheet, A base sheet and a base material 11 made of a transparent thermoplastic resin sheet as a surface sheet may be laminated by thermal fusion using a doubling embossing method, and at the same time, a desired uneven pattern may be embossed on the surface of the base material 11.

  The use of the decorative material described above is not particularly limited. For example, interior materials for buildings such as walls, floors, and ceilings, exterior walls of buildings, roofs, gates, fences, fences, and other exterior materials, doors, windows Frames, doors, door frames and other fittings, surrounding materials, surface materials for construction members such as skirting boards and handrails, surface materials for housings of home appliances such as TV sets and refrigerators, and office equipment such as copiers, bags, etc. Furniture surface materials, boxes, surface materials of containers such as resin bottles, interior materials or exterior materials for vehicles, interior materials or exterior materials for ships, and the like.

In the example, the inclination angle θ ₁ of the first inclined surface and the inclination angle θ ₂ of the second inclined surface were measured for the decorative material produced following the example of the decorative material 10. Further, the surface roughness was measured Ra ₂ of the surface roughness Ra ₁ and valley portions of the ridge portion. In FIG. 11, the figure which expanded a part among the top views of the decorative material in an Example was represented. Among these, the part enclosed by P and Q was made into the measuring object.

<Shape of cosmetic material>
The decorative material manufactured in the example is a one having a thickness of 300 μm and using a single-layer base material made of a white polyvinyl chloride sheet having a plasticizer part of 20 parts by mass, to which a white pigment made of titanium dioxide particles is added. It is.
This is formed on the surface of one side by the above-mentioned manufacturing method, and a concavo-convex pattern having the concavo-convex shape characteristics shown in Table 1 is shown in FIG.

<Measurement of θ ₁ and θ ₂ >
θ ₁ and θ ₂ were measured according to the method described above by inputting a three-dimensional shape with a three-dimensional measuring device (Keyence Corporation, VR-3000).

<Measurement of Ra ₁ and Ra ₂ >
Ra ₁ and Ra ₂ were measured as described above by inputting a three-dimensional shape with a three-dimensional measuring device (Keyence Corporation, VR-3000).

<Result>
As a result, the results shown in Table 1 were obtained.

  A cosmetic material having such an aspect could be obtained. As a result, the cosmetic material has a different texture from the viewpoint of visual and tactile sensations.

DESCRIPTION OF SYMBOLS 10 Cosmetic material 11 Base material 12 Pattern formation layer 13 Convex part 13a Ridge line 14 Concave part 14a Valley line

Claims (7)

It is a decorative material with a concavo-convex pattern formed on the surface,
A substrate, and a concavo-convex pattern formed on one surface of the substrate,
The convex part which forms the uneven pattern has a first inclined surface and a second inclined surface, and one end of the first inclined surface and one end of the second inclined surface are connected, thereby The top forms a ridgeline,
When the angle formed between the first inclined surface and the sheet surface is an inclination angle θ ₁ , and the angle formed between the second inclined surface and the sheet surface is an inclination angle θ ₂ , the uneven pattern satisfying θ ₁ <θ ₂ Including cosmetic materials. When the surface roughness of the first inclined surface in the ridge line portion is Ra ₁ , and the surface roughness of the first inclined surface in the valley line portion of the recess adjacent to the ridge line is Ra ₂ , Ra ₁ > Ra ₂ . The cosmetic material according to claim 1.   The decorative material according to claim 1, wherein a pattern layer is further laminated on the base material.   The cosmetic material according to any one of claims 1 to 3, wherein a transparent protective layer is further laminated on the substrate or the picture layer.   The decorative material according to any one of claims 1 to 4, wherein the ridgeline forms a trace-like pattern due to the shape of the ridgeline extending.   The decorative material according to any one of claims 1 to 4, wherein the ridgeline forms a stone-like pattern due to a shape in which the ridgeline extends.   The cosmetic material according to claim 3 or 4, wherein the pattern layer has a stone-tone pattern.