JP2001113894A - Decorative material having woven fabric-like rugged pattern - Google Patents

Abstract

PROBLEM TO BE SOLVED: To express a sense of a design of a woven fabric such as a carbon cloth or the like in a natural sense. SOLUTION: The decorative material comprises a woven fabric-like rugged pattern 1 formed on a base material. In this case, the pattern has, when orthogonal coordinates or oblique coordinates are a O-XYZ, (a) parallel line-like grooves of parallel curve groups extended in a direction X or Y with a predetermined line width fitted within a two-dimensional array lattice arranging unit lattices 3 of rectangular parallelepiped in an X-Y plane in directions X and Y, (b) repeating unit curve of the group being a smooth continuous curve having a maximum value, (c) the grooves repeatedly formed alternately with shallow and deep depths in height of a direction Z by the repeating unit curves, and (d) two-dimensional array unit lattices of the direction X or Y of either group extended in the direction X or Y alternately fitted within the unit lattice in the two-dimensional array lattice.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material which can express the pattern and design of woven fibers, especially carbon fiber fabrics, in a natural and unnatural manner.

[0002]

2. Description of the Related Art Various knitted fibers, in particular, a woven fabric of carbon fibers, that is, as a decorative material expressing the texture of carbon cloth, carbon cloth is solidified with a resin such as epoxy resin or acrylic resin to form a plate or panel. There are things that are. However, carbon fibers have a problem of high cost. Also, it was difficult to make a three-dimensional curved surface for a plate or panel made of a resin-woven fabric.

On the other hand, without actually using carbon fibers,
As a method of imitating the pattern / design, Japanese Patent Laid-Open No. 10-44
As described in JP-A-186-186 and JP-A-10-44693, there is also proposed a method of printing a picture pattern of carbon cloth, that is, a method of forming a pattern using a color tone plane pattern. In order to visually reproduce the gloss of the carbon cloth and the fine irregularities of the carbon cloth, this method uses a layer of brilliant material made of a brilliant material through the transparent resin layer provided at the bottom of the picture pattern of the carbon cloth. It is to be formed.
As a specific method, a method of kneading a glitter material into a base sheet to form a glitter layer, or printing a glitter layer by printing an ink containing a glitter material in a solid or picture pattern on the entire surface of the base sheet. A forming method is used, and a desired pattern of carbon cloth is printed thereon through a transparent resin layer to obtain a decorative sheet.

[0004]

However, in the technique of forming a picture pattern of carbon cloth by printing proposed in the above publication, the glossiness and three-dimensional appearance of carbon cloth can be obtained, but the woven pattern of carbon cloth can be obtained by printing. Because of this, it was difficult to express delicate fibers. In addition, the glossiness obtained is almost uniform over the entire surface, and it is not possible to reproduce the appearance in which the pattern created by the high glossy part and the low glossy part changes depending on the combination of the light incident direction from the light source and the observation direction that the real thing has Was. Therefore, the texture and texture of the real carbon cloth were lacking.

Accordingly, an object of the present invention is to provide a knitted fiber,
In particular, it is an object of the present invention to provide a cosmetic material capable of expressing a design based on the texture and texture produced by the pattern of the carbon fiber fabric (carbon cloth) in a natural and unnatural manner.

[0006]

Means for Solving the Problems In order to solve the above problems, in the decorative material having a woven pattern of the present invention, in a decorative material having an uneven pattern formed on the surface of a base material, When the orthogonal coordinate system or the oblique coordinate system is O-XYZ, (a) a two-dimensional array lattice that exists in the XY plane and is formed by arranging parallelogram unit cells in the X and Y directions. And a linear groove formed by a parallel curve group having a predetermined line width and extending in either the X direction or the Y direction is fitted. (B) The repeating unit curve of the parallel curve group has a maximum value. (C) the linear groove is formed by alternately repeating the shallow depth in the Z direction according to each repeating unit curve; and (d) the two-dimensional groove is formed. A parallel curve group extending in the X direction or a parallel curve group extending in the Y direction is provided in a unit lattice in the array lattice. Either made fitted alternately in X and Y directions of the unit cell arranged in two dimensions, a convex-concave pattern, and configured to the uneven pattern and woven uneven pattern.

As described above, the parallelogram unit cells are two-dimensionally arranged as a two-dimensional array lattice, and the direction in which the lines of the parallel curve group extend in the unit cell area is determined between the arranged unit cells. The X-axis direction and the Y-axis direction are alternately changed (alternately orthogonal in the case of the orthogonal coordinate system), and these lines are not formed as a picture pattern by printing, but as an uneven pattern. The design of the texture and texture of the texture of the woven fiber woven fabric such as carbon cloth can be expressed in a natural and unnatural manner. That is, since fibers such as genuine carbon fibers have a generally circular cross-sectional shape, when fibers are bundled, when light is applied to the outer surface thereof, a portion having a high gloss and a portion having a low gloss are generated, and stripes are formed. On the other hand, in the present invention, since the reflection fringes of light are generated by the concave and convex pattern reproducing the concave and convex of the fiber, a three-dimensional effect like a fiber such as a real carbon fiber can be expressed, and an extremely natural feeling can be obtained. It is to express the feeling of fabric. In addition, if a material having moldability such as a resin sheet is used as the base material for forming the uneven pattern, the present decorative material is formed into a three-dimensional curved surface and applied to the three-dimensional curved surface, which is difficult with a real carbon cloth. Can also be given a carbon cloth design.

[0008] In another aspect of the decorative material having a woven-like uneven pattern of the present invention, in a decorative material having an uneven pattern formed on a surface of a base material, the uneven pattern is formed in a rectangular coordinate system or an oblique coordinate system. Is defined as O-XYZ, (a) a predetermined line width is provided in a two-dimensional array lattice, which is present in the XY plane and is formed by arranging parallelogram unit cells in the X and Y directions. ,
(B) a repeating unit curve of the parallel curve group is formed by a smooth continuous curve having one local maximum value; (C) the linear groove is formed by alternately repeating the shallow depth of the height in the Z direction according to each repeating unit curve;
(D ') In the unit lattice in the two-dimensional array lattice, either the parallel curve group extending in the X direction or the parallel curve group extending in the Y direction includes the X direction and the Y direction of the two-dimensionally arranged unit lattice. , Which are alternately fitted into each other.

[0009] With such a configuration, it is possible to express a woven design feeling different from the actual woven fabric such as carbon cloth.

[0010] In the decorative material having a woven uneven pattern according to the present invention, in any one of the above-described decorative materials, the linear grooves of the uneven pattern may have an arrangement period of 5 to 500 µm and a height of unevenness. 5 to 200 μm, and the ratio of the width of the concave portion to the width of the convex portion is 7: 3.
~ 3: 7, and the two-dimensional array lattice is
It consisted of an aggregate of line groups each having a minimum unit of a quadrilateral having a side of 1 mm to 20 mm.

By doing so, the texture, texture, etc. of the actual fabric such as carbon cloth can be effectively expressed.

Further, the decorative material having a woven uneven pattern of the present invention according to any one of the above-described decorative materials, wherein (A) the line width of each line is randomly changed to a curve group of the uneven pattern. And (B) an arrangement in which the line width of each line is sequentially changed in a direction parallel to the line.

By doing so, the texture and texture of the actual fabric such as carbon cloth can be expressed more naturally, artificially, and unnaturally.

Further, in the decorative material having a woven uneven pattern according to the present invention, in any one of the above-described decorative materials, the line width of the repeating unit curve constituting the parallel curve group is the length of the curve. The configuration is such that it becomes maximum at or near the center in the vertical direction.

By doing so, the texture and texture of the actual fabric such as carbon cloth can be better expressed, and furthermore, the center of the surface within the unit cell corresponding to each weave is slightly The protruding curved appearance and texture can be better expressed.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a decorative material having a woven pattern of the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of a decorative material having a woven uneven pattern 1 according to the present invention, in which the shape of a line drawn by the parallel groove 2 and coordinates for arranging unit grids are shown. A plan view (Z) showing an example of a case where rectangular coordinates are adopted as a system
FIG. Unit lattice 3 in the figure
Is aX in the X-axis direction and aY in the Y-axis direction.
And a case where a square having the same size on the X axis and the Y axis is a parallelogram. 2 is a plan view in which the plan view of FIG. 1 is partially enlarged. Note that, in the enlarged plan view of FIG. 2, the line indicating the parallel groove 2 has a jagged outline, but is drawn using a computer. The contour of the line actually used for the linear groove can be used as long as it has such a crease, but it is a matter of course that a smooth contour line may be used.

As shown in FIG. 3, the unit cell 3 is
A square lattice (see FIG. 1) as shown in FIG.
In addition to the rectangular lattice as shown in FIG. 3B, an oblique lattice as shown in FIG. In the case of the orthorhombic lattice, O-
In the XYZ coordinate system, the O-XY coordinates are oblique coordinates. As for the specific size of the unit lattice, if one side of the quadrilateral is in the range of 1 mm to 20 mm, it is preferable in terms of design expression of a woven fabric such as a real carbon cloth. If it is smaller than this range, or conversely, it is not preferable because it departs from the design feeling of the actual fabric.

FIG. 4 shows another embodiment of the decorative material having a woven pattern according to the present invention, in which a linear groove 2 and a flat surface 4 are alternately fitted in a unit cell. It is a top view which shows an example of the pattern 1. In this way, by making the flat surface a two-dimensional alternately two-dimensionally woven into a unit lattice, the woven fabric is different from the actual woven fabric such as carbon cloth, and is difficult to express with woven fabric. It can also express a sense of design. The flat surface may be either a mirror surface (glossy surface) or a rough surface (matte surface).

Next, the size and shape of the cross section of the linear groove will be described with reference to FIG. First, FIG.
5B is an enlarged view of the linear groove 2 forming the woven fabric uneven pattern, FIG. 5B is a cross-sectional view of the same in the XZ plane, and FIG. FIG. 6 is a diagram illustrating an example in which the cross-sectional shape is different but the cross-sectional shape is different. FIG.
As shown in (B), the linear groove 2 which is a component of the woven-textured pattern includes a concave portion 5 and a convex portion 6 between the concave portion 5 and the concave portion 5. The sum (w1 + w2) of the convex portion width w2 of the portion 6 is the arrangement period of the linear grooves. The arrangement period is 5 to 500 μm, the height H of the unevenness is 5 to 200 μm, and the ratio (w1: w2) of the concave portion width w1 to the convex portion width w2 is 7: 3 to 3: 7. In addition, the linear grooves cannot effectively express the design feeling of the woven fibers constituting the woven fabric such as carbon cloth. Note that w1 and w2 need not be the same value.

Note that the cross-sectional shape of the linear groove 2 does not necessarily have to be rectangular, and other than the rectangular shape shown in FIG.
For example, a curve (for example, a sine wave or the like) as illustrated in FIG. 5C, or a square having rounded corners, a semicircle, a triangle, or another shape may be used. Also, depending on the size, corners may be rounded when a shaped plate such as an embossed plate is manufactured by etching or the like. Further, when the cross section of the linear groove is formed of a sinusoidal curve as shown in FIG. 5C, the concave portion width w1 and the convex portion width w2 are, for example, as shown in FIG. It can be understood as a distance between inflection points where the shape changes from (or concave) to concave (or convex).

In the present invention, (the shape of the repeating unit curve constituting the parallel curve group) is not a simple straight line or a broken line. That is, in the present invention, this repeating unit curve is
A smooth continuous curve having one maximum value is adopted (see FIG. 1). That is, for example, it is a curve having one peak, such as an arc. If there are two peaks, there are two maximum values. As a curve that can be used as a smooth continuous curve having one maximum value, for example, a function curve such as a sine function, an elliptic function, a Bessel function, a hyperbolic function, a cycloid curve, an ellipse, and a circle (arc) ahead of the curve, It may be a free-form curve by hand-drawing. By extracting an appropriate part from these curves and giving a maximum value to the repeating unit curve,
To express the feeling that the fiber woven as a woven fabric is convex upward (Z-axis direction) in one unit lattice, or the feeling that the bundle of fibers is expanded except for both sides in the unit lattice. Can be done. Then, a plurality of repeating unit curve portions constituting such a parallel curve group are formed into convex portions (or concave portions).
By forming a portion between the repeating unit curves as a concave portion (or a convex portion), the linear groove has a shape on the XY plane corresponding to the repeating unit curve, and in the Z direction, Corresponding to the repeating unit curve, the shallow depth is alternately repeated to form a linear groove having irregularities.

As illustrated in FIG. 6A, the line width W of the repeating unit curve 7 may be constant (within one unit cell) and the same width. ), The line width of each repeating unit curve 7 may be changed (within one unit cell). (In the description of the present invention, the arrangement period of the linear grooves is different from twice the line width of the repeating unit curve and corresponds to the distance between adjacent repeating unit curves.) B) indicates that the line width of each repetition unit curve 7 is the thickest Wmax at or near the center of the line.
This is an example in which both ends are thinned. When the line width is changed for one line, it is not preferable that one of the contour lines of the repeating unit curve 7 is a straight line as shown in FIG. The repeating unit curve 7, which can be regarded as the center of the contour on both sides in the width direction of the line, is not a straight line, and is a smooth continuous curve having one maximum value. Alternatively, a linear feeling is given to the design feeling of the woven fabric, and unnaturalness appears. Also, the repeating unit curve 7A in FIG.
Is a smooth continuous curve having one maximum value on each side in the width direction of the line, but the repeating unit curve 7A (particularly, the center line) extracted from these contours is a simple straight line. Would. Of course, the linear repeating unit curve 7A as shown in FIG. 6D is not adopted as the repeating unit curve in the present invention. This is because the running feeling of the woven fiber cannot be sufficiently obtained.

Further, a parallel curve group consisting of a collection of repeating unit curves used as a linear groove in the present invention includes:
At least one of (A) a line in which the line width of each repeating unit curve is randomly changed, or (B) a line in which the line width of each repeating unit curve is sequentially changed in the line arrangement direction. It is also preferable to employ either one. This (A),
By adopting any one of the combinations (B), (A) and (B), irregularities can be imparted to the linear grooves, and the texture and texture of the actual fabric such as carbon cloth Can be expressed more naturally, artificially and without skill.

When a woven fabric uneven pattern using parallel grooves is formed based on a parallel curve group composed of a plurality of repeating unit curves, the line portion is regarded as a concave portion and the woven fabric uneven pattern is used. It is optional whether or not the line portion is regarded as a convex portion and is formed into a woven uneven pattern.

As the parallel curve group fitted into each unit cell in the two-dimensional array grid, one kind of parallel curve group may be used. In this case, each parallel curve group fitted into each unit cell has its extending direction alternated at the intersection angle of coordinates (90 degrees in a rectangular coordinate system, X-axis and Y in a social coordinate system).
It only rotates by the angle of intersection with the axis). Of course, two or more kinds of parallel curve groups may be used in combination as the parallel curve group fitted into each unit lattice in the two-dimensional array lattice. This can express the feeling of a real textile in a more natural feeling. Further, the parallel curve group may have fluctuation. The fluctuation is the shape of the repeating unit curve (the direction in which the line runs)
And the line width and the parallel relationship between the repeating unit curves. By the fluctuation, irregularities having a distribution having a constant average value and variance can be imparted to the shape, the line width, the parallel relationship, and the like. By the fluctuation, the woven design can be made natural. In addition, the repeating unit curve is not only a continuous line segment from one side of the unit cell to another side (usually opposite), but also ends in the middle, or both ends of the line segment reach the side of the unit cell. It may not be. The length of the line segment of such a repeating unit curve may be fluctuated.

[Method of Producing a Woven Irregular Pattern] Next, a method of actually producing the woven concave and convex pattern as described above will be described. First, a group of parallel curves to be fitted into a unit cell may be created as a binary bitmap image by a computer, for example, for one unit cell. Further, by a computer, the parallel curve group is converted into the X direction and the Y direction by 90 degrees in a rectangular coordinate system.
In the case of an oblique coordinate system, if an image rotated at the intersection angle of the X axis and the Y axis and an image not rotated are alternately fitted, a bit map of a two-dimensional array lattice as illustrated in FIG. Create images. After that, using the bitmuff image to produce an embossing plate or the like as a shaping plate by a known method, and then, for example, embossing a black resin sheet using the embossing plate, the desired fabric-like uneven pattern is obtained. Is obtained.

Hereinafter, a method for producing a woven concavo-convex pattern will be described in detail.

First, the method of producing the parallel curve group for the unit cell is not particularly limited, and may be hand-drawn. However, it is more efficient if it is produced by calculation using a computer.
For example, the following may be performed. First, a cell is defined as a three-dimensional object having a planar shape corresponding to one unit cell, having a thickness, and having a convex surface (for example, a kamaboko-shaped three-dimensional object,
A unit normal vector on the cell surface at each position on the bottom surface of the cell is obtained. Then, the X direction component and the Y direction component of the unit normal vector are put together in an appropriate format,
An angle for defining the direction of the repeating unit curve at each position (X, Y) on the cell bottom is obtained to create a two-dimensional scalar field. Next, a parallel curve group pattern (consisting of a plurality of repeating unit curves) for one cell is created based on the two-dimensional scalar field. A method of creating a parallel curve group pattern based on a two-dimensional scalar field is known variously as a method of creating a line pattern, and any method can be used. For example, Japanese Patent Application Laid-Open No. 10-287033 discloses The disclosed method may be used. Japanese Patent Application Laid-Open No. 10-28703
In the method disclosed in Japanese Patent Publication No. 3 (a method of producing a line pattern for expressing the shine and movement of shine of natural wood),
The method of creating a line pattern based on a two-dimensional scalar field in which an angle called a "fiber dip angle" (of a wood fiber at a wood cut surface) is determined at each position. (Line pattern).

In the method disclosed in Japanese Patent Application Laid-Open No. 10-287033, a starting point and a drawing length are determined for one line pattern. First, a fiber at a position of a two-dimensional scalar field corresponding to the position of the starting point is determined. Draw a line in the direction of the dive angle by an appropriate length, and draw a line by the appropriate length in the direction of the fiber dive angle at the position of the two-dimensional scalar field corresponding to the position of the end point of the drawn line. This process is repeated until the length of the line reaches a predetermined value. As a result, one line (repetition unit curve) constituting the line pattern is drawn, and such processing is performed for a desired number of lines to obtain a desired line pattern.

Once a group of parallel curves for one unit cell is formed, if only one type of parallel curve group is used, an image rotated by 90 degrees in the X direction and the Y direction is obtained. By alternately fitting the image and the other image, a bitmap image of a two-dimensional array lattice can be produced as illustrated in FIG. If a plurality of types of parallel curve groups are used, the step of creating a parallel curve group based on the two-dimensional scalar field described above is performed using a different two-dimensional scalar field, and a different shape is performed. Is obtained, and the parallel curve groups having different shapes may be used together.

In order to produce a shaped plate from a bitmuff image, it may be produced by a conventionally known appropriate method such as a direct etching method. For example, in the direct etching method, a photosensitive resist film is formed on the surface of a shaping plate substrate made of a metal such as iron or copper, and the intensity (or on / off) of the laser is modulated by the bitmap image. After exposure by scanning with a beam or the like, development and corrosion may be performed. Alternatively, a bitmap image is prepared as a photographic film (original) original, and this original is brought into close contact with the resist film on a shaping plate substrate on which a photosensitive resist film has been formed in advance, and is exposed with a mercury lamp and developed. A shaped plate is prepared by a normal etching method for performing corrosion.

[Shaping of a concavo-convex pattern by a shaping plate] Next, a method of shaping a woven concavo-convex pattern on a substrate as an object to be applied by using the shaping plate obtained as described above will be described. Keep it. In the shaping method of the concavo-convex pattern using the shaping plate, the shaping plate is used as an embossing plate or a molding die according to the material of the base material or the like, as in the case of the conventionally known line pattern. There is no particular limitation on the substrate on which the woven pattern is formed. A thermoplastic resin, a thermosetting resin, an ionizing radiation-curable resin, a metal foil, or the like may be appropriately used.

(1) When the base material is a thermoplastic resin sheet or the like and can be plastically deformed by heat and pressure, heat is applied (by hot pressing) using a shaping plate manufactured as an embossing plate, and the shaping is performed. Just do it. For embossing, a lithographic press,
Various known presses and embossing machines such as a roll embossing machine are used. In the roll embossing method using a cylindrical embossing plate, the object to be provided can be continuously produced as a long strip-shaped sheet or the like, so that the productivity is good. The heating and pressurizing conditions for the object to be applied differ depending on the thermo-pressure behavior of the object to be applied, but in the case of a normal thermoplastic resin, the softening point or the heat deformation temperature and the appropriate temperature between the melting point or the melting temperature are set. Heat, press and shape the embossing plate, cool and fix the shape. In addition, the shaping by the embossing plate is generally suitable when the substrate to be provided with the uneven pattern is a sheet or a plate.

Examples of the thermoplastic resin include polyolefin resins such as polyethylene, polypropylene, polybutene, ethylene-propylene copolymer, ethylene-propylene-butene copolymer, olefin-based thermoplastic elastomer, and polymethyl (meta). ) Acrylate, polybutyl (meth) acrylate, methyl (meth)
Acrylic resin such as acrylate-butyl (meth) acrylate copolymer, polyethylene terephthalate, polybutylene terephthalate, ethylene-isophthalate-terephthalate copolymer, thermoplastic polyester resin such as polyester-based thermoplastic elastomer, vinyl chloride resin, polycarbonate, Examples include polystyrene, ABS (acrylonitrile-butadiene-styrene copolymer) resin, and polyamide resin.

(2) Even when the base material is a curable resin such as a thermosetting resin and cannot be plastically deformed, heat and pressure are applied by an embossing plate at a stage where the solid before plasticization can be plastically deformed. Or if it can be handled in the liquid phase, use an embossing plate as a mold and cure (detailed below)
Etc., can be shaped. The thermosetting resin is formed by impregnating a paper or non-woven fabric impregnated with the uncured product (prepolymer, monomer, etc.) on a suitable backing substrate as necessary, and simultaneously curing and shaping by hot pressing. You can do things. In addition, examples of the thermosetting resin include a melamine resin, a phenol resin, a urethane resin, a diallyl phthalate resin, an unsaturated polyester resin, and an epoxy resin.

(3) When the substrate is a curable resin and it is an ionizing radiation curable resin, it can be shaped upon curing. For example, as an example of a method of curing the ionizing radiation-curable resin at the uncured liquid stage using a shaping plate as a molding die, using an ionizing radiation-curable resin, a continuous embossed plate with a cylindrical embossing plate is used. A method of continuously forming a concavo-convex pattern by using a cured product of an ionizing radiation-curable resin on a material sheet will be described in further detail here. The cured product of the ionizing radiation-curable resin serves as a base material on which the woven pattern is formed.

This method is disclosed in JP-A-57-87318, JP-B-57-22755, and JP-B-63-50.
066, JP-A-7-32476, and the like, which is a method of faithfully shaping the uneven shape of a shaping plate (molding die) into a cured product of an ionizing radiation curable resin. Basically, it comprises the following steps.

A cylindrical plate cylinder (a shaping plate as a molding die) having the same shape as the target shape and the concavo-convex shape (concavo-convex pattern) having the reverse concavo-convex shape on the surface is prepared, and this is placed around the axis. Rotate. A long strip-shaped base sheet is supplied at the same speed as the peripheral speed of the plate cylinder. The base sheet and the plate cylinder are overlapped with each other via an uncured liquid composition of an ionizing radiation-curable resin, and are brought into close contact with each other, so that the liquid composition completely fills at least the concave portion of the plate cylinder. To The liquid composition is crosslinked and cured by irradiating it with ionizing radiation in that state. Thereafter, the base sheet is peeled and removed together with the cured product of the ionizing radiation-curable resin on which the uneven pattern on the plate cylinder is formed by adhering thereto.

In the above method, the cylindrical plate cylinder (mold) is basically the same as the well-known intaglio, gravure, and embossing plates in the same material, the same structure, and the same manufacturing method. You can use it. As a material of the plate, usually, a metal such as iron or copper is used. However, when irradiating ultraviolet light or visible light from inside the plate cylinder, a transparent material such as glass or quartz is used. The rotation drive around the axis of the plate cylinder is
The same mechanism and method as those of a normal transfer type gravure printing machine and a rotary embossing machine may be used. In order to adhere the base sheet to the plate cylinder, the base sheet is pressed by a roller (press roller) made of rubber, metal, or the like. Also, when the base sheet is peeled from the plate cylinder, the base sheet is peeled by pressing with a roller (peeling roller) made of rubber, metal or the like. A long and band-shaped base sheet is used. Such a base sheet is unwound from an unwinding roll (supply roll) and, after shaping, wound up by a take-up roll (paper discharge roll).

The following (1) to (3) are examples of the mode in which the base sheet and the plate cylinder are overlapped and adhered to each other with an uncured liquid composition of an ionizing radiation-curable resin therebetween. (1)
First, the liquid composition is applied onto a substrate sheet, and then the substrate sheet is overlaid on the plate cylinder such that the application surface faces the plate cylinder surface. (2) First, the liquid composition is applied on the plate cylinder, and then the base sheet is overlaid on the application surface on the plate cylinder. (3) First, the liquid composition is applied on each of the plate cylinder and the base sheet, and then the base sheet and the plate cylinder are overlapped with each other with the application surfaces facing each other.

The mode of irradiation of the uncured liquid composition between the plate cylinder and the base sheet with ionizing radiation is as follows. A substrate sheet transparent to ionizing radiation is selected (for example, a polypropylene substrate sheet is selected for ultraviolet rays, and a thin paper sheet is selected for electron beams), and irradiation is performed from the substrate sheet side. A plate cylinder that is transparent to ionizing radiation is selected (for example, a quartz plate cylinder is selected for ultraviolet rays), and irradiation is performed from the inside of the plate cylinder.

The base sheet is made of thermoplastic resin polyester resin such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyolefin resin such as polyethylene, polypropylene, polymethylpentene, olefin-based thermoplastic resin elastomer, and polyvinyl chloride. , Resin sheets such as polycarbonate, polystyrene, ABS resin, acrylic resin, etc., tissue paper, woodfree paper, kraft paper, paper such as Japanese paper, glass, vinylon, polyester, cellulose and other non-woven fabrics or woven fabrics, aluminum, iron, etc. There is a metal foil such as copper. The above conditions (1) to (4) are possible only in the case of ultraviolet irradiation from inside the transparent plate cylinder, or in the case of highly transparent radiation such as an electron beam. The thickness of the base sheet is usually 20 to 200 μm.
m is used.

Examples of the ionizing radiation-curable resin include a prepolymer having a polymerizable unsaturated bond such as a (meth) acryloyl group or a (meth) acryloyloxy group, or a cationic polymerizable functional group such as an epoxy group in a molecule. A composition comprising a monomer, a polymer, or a polythiol compound, and a mixture of one or two or more of these compounds is used.
The composition used is a liquid when not cured.

Examples of the prepolymer having a polymerizable unsaturated bond in the molecule include unsaturated polyesters such as a condensate of an unsaturated dicarboxylic acid and a polyhydric alcohol, polyester (meth) acrylate, and urethane (meth) acrylate. And (meth) acrylates such as epoxy (meth) acrylate and melamine (meth) acrylate [In the present specification, (meth) acrylate is used to mean acrylate or methacrylate. The same applies hereinafter. Examples of the monomer having a polymerizable unsaturated bond in the molecule include styrene monomers such as styrene and α-methylstyrene, methyl (meth) acrylate, (meth)
Monofunctional (meth) acrylates such as 2-ethylhexyl acrylate, methoxyethyl (meth) acrylate, butoxyethyl (meth) acrylate, ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate
Polyfunctional (meth) acrylates such as acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and (meth) acrylic acid-2- (N, Substituted aminos of unsaturated acids such as N-diethylamino) ethyl, 2- (N, N-dimethylamino) ethyl (meth) acrylate, 2- (N, N-dibenzylamino) ethyl (meth) acrylate Alcohol esters, unsaturated carboxylic acid amides such as (meth) acrylamide, polythiol compounds having two or more mercapto groups in the molecule, for example, trimethylolpropanetrithioglycolate, trimethylolpropanetrithiopropylate, pentaerythritol Such as tetrathioglycol .

Examples of the prepolymer having a cationically polymerizable functional group in the molecule include bisphenol type epoxy resins,
Novolak epoxy resin, aliphatic epoxy resin, etc.
Examples include epoxy resins such as alicyclic epoxy resins, vinyl ether resins such as aliphatic vinyl ethers, aromatic vinyl ethers, urethane vinyl ethers, and ester vinyl ethers; cyclic ether resins; and prepolymers such as spiro compounds.

One or two of the above compounds may be used if necessary.
The prepolymer or oligomer is preferably used in an amount of 5% by weight or more and the monomer and / or polythiol is preferably used in an amount of 95% by weight or less in order to impart ordinary coating suitability to the resin composition. . Further, in order to control physical properties such as flexibility and surface hardness of the cured product, the following ionizing radiation non-curable resin is used in an amount of 1 to 70% by weight based on at least one of the prepolymer, oligomer and monomer. They can be used in a mixed state. As ionizing radiation non-curable resin, urethane resin, cellulose resin, polyester resin, acrylic resin, butyral resin,
Thermoplastic resins such as polyvinyl chloride and polyvinyl acetate can be used.

In particular, in the case of curing with ultraviolet rays, a photopolymerization initiator is added to the ionizing radiation-curable resin composition. For compounds having a radical polymerizable unsaturated bond in the molecule, acetophenones, benzophenones, Michler benzoyl benzoate, α-amyloxime ester,
Tetramethyl meuram monosulfide, thioxanthones and the like. Compounds having a cationically polymerizable functional group in the molecule include aromatic diazonium salts, aromatic sulfonium salts, aromatic iodonium salts, metallocene compounds, benzoinsulfonic acid esters, diallyliodosyl salts, and the like. If necessary, n-butylamine, triethylamine, tri-n-butylphosphine and the like can be further mixed and used as a photosensitizer.

The above-mentioned uncured liquid composition of the ionizing radiation-curable resin composition can be applied to a plate cylinder or a base sheet by various known methods, for example, roll coating, curtain flow coating, T-die coating and the like. Use the method. In particular, in the case of plate cylinder coating, it is possible to immerse the rotating plate cylinder in the liquid composition in the ink pan (so-called dip dipping).

Here, the ionizing radiation means an electromagnetic wave or a charged particle beam having an energy capable of polymerizing and crosslinking molecules, and includes ultraviolet rays, visible rays, X-rays, electron rays, α rays and the like. However, ultraviolet rays or electron beams are usually used. Ultra-high pressure mercury lamps, high pressure mercury lamps,
Light sources such as low-pressure mercury lamps, carbon arc lamps, black light lamps, and metal halide lamps are used. As the electron beam source, various electron beam accelerators such as Cockcroft-Walton type, Van degraft type, resonance transformer type, insulating core transformer type, or linear type, dynamitron type, and high frequency type are used, and 100 to 1000 keV, preferably Is 10
A device that irradiates electrons having an energy of 0 to 300 keV is used.

(4) In the case where the substrate is a three-dimensional object and is a molded body such as a resin, a molding die having an uneven pattern formed on the mold surface of the molding die is produced as a shaping plate. Using the mold, the surface is formed simultaneously with the molding. The molding method is, for example, injection molding, casting molding, compression molding or the like. In addition, as a base material in the form of a molded article, a thermoplastic resin or the like is generally used in ordinary injection molding, but in addition, a thermosetting resin or the like is also used. As the thermoplastic resin or the thermosetting resin, the above-described thermoplastic resin, thermosetting resin, or the like is used. For example, polyethylene, polypropylene,
Polycarbonate, acrylic resin, styrene resin, AS
Resin (acrylonitrile-styrene copolymer), ABS
Resin (acrylonitrile-butadiene-styrene copolymer), polyacetal resin, urethane resin and the like.

(5) As the base material for forming the woven uneven pattern, inorganic materials other than resins such as metals and ceramics can be used. For example, metals include aluminum, copper, iron and the like. Metal is also used as a metal foil (eg, aluminum foil, copper foil, etc.). Further, ceramics include glass and the like. These inorganic materials may be shaped by using a shaping plate as a mold. In addition, a metal foil can be shaped using a shaping plate as an embossing plate.

(6) It is to be noted that, besides directly providing the base material with a concavo-convex pattern from the shaping plate, a sheet once formed from the shaping plate as a second shaping plate is used as the second shaping plate. There is also a method of indirectly providing an uneven pattern such as providing an uneven pattern on a substrate using a shaping plate. For example, a support sheet of a transfer sheet including a support sheet and a transfer layer is used as the second shaping plate. That is, from the shaping plate to the support sheet to form an uneven pattern, by the shaped support sheet,
For example, a method of applying a concavo-convex pattern to the surface of a transfer layer (which serves as a base material on which a concavo-convex pattern is formed) to be transferred to a transfer target body, together with the transfer. In this case, if a transfer sheet is inserted into a molding die and molded, a method of forming a concavo-convex pattern along with a picture or the like at the same time as molding on the surface of a molded body of resin or the like (in injection molding, so-called simultaneous injection molding painting) is adopted. Transfer method).

[Layer Structure of Cosmetic Material] Next, the layer structure of the decorative material of the present invention, which is obtained by forming the above-described woven-like uneven pattern on the surface of a base material, will be further described.

As the decorative material having a woven texture pattern of the present invention, if the base material on which the woven texture pattern described above is formed is included as a constituent element, the layer structure and the material structure of the decorative material The shape and the like are not particularly limited. In these respects, conventionally known forms of various cosmetic materials can be appropriately adopted. The position of the woven uneven pattern is arbitrary, such as the surface such as the front and back surfaces of the decorative material, or the inner surface. Of course, the woven uneven pattern is a position that is not concealed to such an extent that the reflected light can be used.

Note that, as described herein, the “substrate” referred to in the present invention is an object to be applied that forms a woven uneven pattern. Therefore, the “substrate” may be the same as or different from the “decorative material substrate” responsible for maintaining the mechanical strength of the decorative material. For example, when the base material is a resin sheet or the like, the base material can be a decorative material base, but in the case of the transfer layer described in (6) above, the base material cannot be a decorative material base.

As the decorative material base material, various base materials that form the above-mentioned uneven pattern can be used, and a fibrous base material can be used (a fabric-like uneven pattern cannot be formed or is difficult to form). . The fibrous base material is, for example, paper such as thin paper, woodfree paper, coated paper, Japanese paper, linter paper, kraft paper, and the like, and cloth such as woven fabric and nonwoven fabric. Such a decorative material substrate on which the woven pattern is not formed is laminated with a substrate on which the woven pattern is formed to form a decorative material. When the shape of the decorative material is a sheet (decorative sheet) or a plate (decorative plate), the decorative material base is usually used as a single layer of a sheet (film) or a plate, or a laminate thereof.

Next, with regard to the decorative material having a woven uneven pattern of the present invention, FIGS.
FIG. 7 and 8 show a laminate form,
FIG. 9 shows an example of a decorative material in the form of a transfer sheet.

First, in the decorative material D shown in FIG. 7A, a woven uneven pattern 1 is formed on one surface of a transparent base material B serving as a decorative material base 11, and the woven uneven pattern 1 is further formed. This is a decorative material having a configuration in which an adhesive layer 12 is laminated on the surface of the decorative material substrate 11 (substrate B). The substrate is, for example, a sheet, a plate, a resin molded body, or the like. A typical example is a case where the decorative material substrate 11 is a substrate sheet made of a transparent resin film. That is, it is a decorative material (decorative sheet) in which a fabric-like uneven pattern 1 is formed on one surface of a transparent substrate sheet as a substrate B serving as a decorative material substrate, and an adhesive layer 12 is further laminated thereon.

Next, in the decorative material D shown in FIG. 7B, a colored transparent colored layer 13 is laminated as a substrate B on one side of a transparent decorative material substrate 11, and the colored layer 13 (substrate B 2) is a decorative material having a structure in which the woven uneven pattern 1 is formed on the surface and the adhesive layer 12 is further laminated on the surface of the colored layer 13 (base material B) on which the woven uneven pattern 1 is formed. The contents of the base material and the adhesive layer are the same as in the case of FIG. In the case where the colored layer 13 (base material B) is formed by coating, printing, or the like, the unevenness of the woven concavo-convex pattern 1 reaches the decorative material base material 11. Base material B on which 1 is formed
Can be regarded as a decorative material base material 11 having the coloring layer 13 as a component thereof. In addition, the colored layer 13 (base material B) is used as a transparent colored resin sheet as the decorative material base material 11.
In the case where the coloring layer 13 is laminated through an adhesive or the like, the coloring layer 13 can be formed as a thick layer having a thickness of, for example, 50 μm, so that the irregularities of the woven uneven pattern 1 can be covered only by the coloring layer 13.

Next, the decorative material D shown in FIG.
This is a decorative material having a configuration in which a gloss layer 14 such as a metal thin film layer is provided between the coloring layer 13 (base material B) and the adhesive layer 12 in the configuration of FIG.

Next, the decorative material D shown in FIG. 8 has a woven concavo-convex pattern 1 formed on one surface of a base material B serving as the decorative material base material 11. 7A to 7C, the decorative material in FIGS. 7A to 7C positions the woven pattern 3 on the back side of the base material B, whereas the decorative material in FIG. 1 is located on the front surface of the base material B. In FIG. 8, the base material B may be either transparent or opaque, and may be non-colored or colored. For example, the base material B is black and opaque.

Next, the decorative material D shown in FIG. 9 (A) is in the form of a transfer sheet, and a release layer 17 and a colored layer 13A are provided in this order as a transfer layer 16 on one side of a support sheet 15; In addition, the decorative material has a configuration in which the woven rugged pattern 1 is formed on the surface of the release layer 17 on the colored layer 13A side using the release layer 17 as the base material B. The coloring layer 13A may be opaque, unlike the transparent coloring layer 13.

Next, the decorative material D shown in FIG. 9B is also in the form of a transfer sheet, and a release layer 17, a colored layer 13A, and a gloss layer 1 are formed on one side of a support sheet 15 as a transfer layer 16.
Reference numeral 4 denotes a decorative material having a configuration in which the woven concavo-convex pattern 1 is formed on the surface of the release layer 17 on the colored layer 13A side using the release layer 17 as the base material B. This coloring layer 13A may be opaque, unlike the transparent coloring layer 13.

In the above, the adhesive layer 12 is made of acrylic resin, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, chlorinated polypropylene resin, polyamide resin, polyester resin, alkyd resin, urethane resin, A known material such as an epoxy resin may be appropriately selected and used from the viewpoint of adhesiveness to an adherend. The adhesive layer is formed using a coating liquid (or ink) containing these resins by a known forming method,
For example, it may be formed by a coating method such as gravure coating or roll coating, or a printing method such as gravure printing, screen printing, or offset printing.

The coloring layers 13 and 13A may be formed of a coloring paint (or coloring ink) containing a coloring agent. Alternatively, a resin sheet or the like in which a coloring agent is kneaded is also possible. As the resin sheet, a sheet made of a thermoplastic resin or the like in the base material can be used. The colored layers 13 and 13
A is usually formed on the entire surface. The color of the coloring layers 13 and 13A may be a color corresponding to the expressed fabric. For example, when expressing carbon cloth, black is usually used to approximate the color of natural carbon fibers. In addition, depending on the fabric to be expressed and its design expression, dark blue, brown, dark green,
And other colors are used as appropriate. The coloring layer 13 is formed as transparent coloring, and the coloring layer 13A is formed as transparent coloring or opaque (concealing) coloring. This is because, in the case of the colored layer 13, the light reflection from the woven uneven pattern 1 existing under the colored layer 13 when the decorative material is used is observed through the colored layer 13. Also,
In the case of the colored layer 13A, since the woven concavo-convex pattern 1 is on the near side of the colored layer 13A during observation of the decorative material,
A may be opaque or transparent. 7 to 9 assume that the decorative material is observed from the upper side of the drawing, but in the case of the reverse usage, the relationship between the transparency and the opacity of the colored layers 13 and 13A is reversed. .

As the colorant, a known colorant such as a pigment or a dye may be used. For example, titanium white, zinc white,
Red pigment, vermilion, ultramarine, cobalt blue, titanium yellow, graphite, inorganic pigments such as carbon black, isoindolinone, Hansa Yellow A, quinacridone, permanent red 4
R, phthalocyanine blue, indaslen blue RS,
An organic pigment (or dye) such as aniline black may be used. Examples of the resin for the binder of the coloring paint (or ink) include known resins such as acrylic resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer, chlorinated polypropylene resin, polyamide resin, polyester resin, and urethane resin. , A cellulose resin or the like may be used. When the colored layer is formed using a colored coating solution (or ink), the colored layer is formed by a known forming method, for example, a coating method such as gravure coating or roll coating, or a printing method such as gravure printing, screen printing, or offset printing. Just do it.

The gloss layer 14 is a layer that reflects light,
A known metal thin film layer, a layer containing a brilliant pigment, or the like may be used. The effect of the woven uneven pattern can be emphasized by the glossy layer. The metal thin film may be formed by using a metal such as luminium, chromium, gold, silver, or copper by a method such as vacuum deposition or sputtering. In addition, the layer containing the brilliant pigment may be replaced with the coloring coating liquid (or ink) described in the above-mentioned coloring layer, instead of the coloring agent, a metal pigment composed of foil powder such as aluminum or brass, titanium dioxide-coated mica, or a base. It may be formed by applying (or printing) a coating liquid (or ink) using a brilliant pigment such as a pearl luster (pearl) pigment made of foil powder such as fusible lead carbonate.

Support sheet 15 in transfer sheet form
A known material according to the purpose may be used.
For example, thermoplastic resin polyester resin such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyolefin resin such as polyethylene, polypropylene, polymethylpentene, olefin thermoplastic resin elastomer, vinyl chloride resin, polycarbonate, polystyrene, ABS resin , A resin sheet such as an acrylic resin, or a paper having releasability. If the releasability is insufficient, a support sheet having a release layer on the transfer layer side is used.

The release layer 17 optimizes the releasability between the transfer layer 16 and the support sheet 15 and protects the surface of the transfer layer after the transfer, and is shown in FIGS. 9A and 9B. In this example, the release layer 17 is used as the base material B, and the fabric-like uneven pattern 1 is formed on the surface of the release layer 17 on the colored layer 13A side. This release layer 17 serves as a part of the transfer layer 16.
Transfer to the transfer target. 9A and 9B.
In the example, the unevenness of the woven uneven pattern 1 exists only in the layer of the release layer 17, but when the release layer is formed thin,
The irregularities may be formed as irregularities reaching the support sheet 15. The woven uneven pattern 1 has a support sheet 15
After forming the release layer 17 on the release layer 17, the release layer 17 is formed on the release layer 17 by embossing or the like. The release layer 17 may be formed of an ink (or paint) using a binder resin or the like of the colored ink (or paint) described in the above-described formation of the colored layer, or may be formed by coating a molten resin on a support sheet. Good.

The colored layer 13 and the colored layer 13A in the transfer sheet form may be made of a colored paint (or ink), like the colored layer 13 and the colored layer 13A in the laminate form.
What is necessary is just to form.

In the case where an adhesive layer is provided on the transfer layer in the form of a transfer sheet, it may be formed of a colored paint (or ink) as in the case of the adhesive layer 12 in the above-described laminate form.

Here, an example of a specific method for producing the above-described decorative material will be further described. First, FIG.
The decorative material D is, for example, after applying heat and pressure with an embossing plate to one side of a decorative material substrate 11 made of a transparent thermoplastic resin sheet as the substrate B to form a woven uneven pattern 1, and further applying an adhesive. The adhesive layer 12 may be formed by processing. FIG.
The decorative material D of (B) is prepared by applying a colored layer 13 on one surface of a decorative material substrate 11 made of a transparent thermoplastic resin sheet as the substrate B, and then applying heat and pressure to the surface of the colored layer 13 with an embossing plate. Then, the fabric-like uneven pattern 1 may be formed, and an adhesive may be further applied to form the adhesive layer 12. Further, the decorative material D shown in FIG.
After forming the woven uneven pattern 1 in the above, the glossy layer 14 is coated and formed with a paint having a brilliant pigment on the surface on which the woven uneven pattern 1 is formed, and then the colored layer 13 is further formed by coating. If
can get. Further, the decorative material D in FIG. 8 is prepared by applying heat pressure to one surface of a decorative material substrate 11 made of a thermoplastic resin sheet colored black and opaque by adding a coloring agent such as carbon black as the substrate B, using an embossing plate. The fabric-like uneven pattern 1 may be formed by applying the pattern.

The decorative material D shown in FIG. 9A is formed by applying a release layer 17 on one side of a support sheet 15 made of a thermoplastic resin sheet, and then applying heat pressure with an embossing plate to form a fabric-like unevenness. The pattern 1 may be formed, and the colored layer 13A may be further formed by coating. Further, the decorative material D of FIG.
After the formation of the colored layer 13A, the gloss layer 14 may be further formed by coating with a bright pigment.

In addition, the decorative material of the present invention may have a picture pattern or the like, if necessary, in addition to the above-mentioned woven pattern having the specific linear grooves. The pattern may be formed by a known printing method using a coloring ink used for forming a coloring layer. The picture pattern depends on the design to be expressed,
For example, it is a geometric figure, a character, a symbol, a grain pattern, a stone pattern, or the like. The positions where the picture patterns are provided are the inner surface, the front surface, the back surface, the front and back surfaces, and the like of the decorative material.

[Adherend] There is no particular limitation on the adherend on which the decorative material in the form of a laminate is laminated, and the adherend (transfer object) on which the transfer layer is transferred from the decorative material in the form of a transfer sheet. For example, the shape of the adherend is a sheet, a plate, a three-dimensional object, or the like, and the material of the adherend is resin, metal, woody material, paper, ceramic cook, or the like. In addition, as the method of laminating or transferring the decorative material, various conventionally known methods may be adopted according to the application. Note that an article obtained by laminating or transferring the above-described decorative material on an adherend is also an article having a woven uneven pattern, and corresponds to the decorative material of the present invention.

For example, when the adherend is a resin molded product, the decorative material is laminated with a laminating method using the simultaneous painting method of injection molding.
Or transcribed. This method will be described in one form. First, the decorative material of the present invention in the form of a decorative sheet is placed in an injection mold including a movable die and a fixed die. At this time, a single sheet of decorative sheet may be fed into the mold one by one, or a necessary portion of the continuous band-shaped decorative sheet may be sent intermittently. Next, after closing the injection mold, the molten resin is injected into the mold to obtain a molded product, and at the same time, a decorative sheet is laminated and integrated on the surface of the molded product. In the case of the transfer sheet form, after the mold is released, only the support sheet of the decorative sheet integrated with the surface of the molded product is peeled off. As described above, a molded article having a fabric-like uneven pattern such as carbon cloth is obtained. Moreover, according to the simultaneous injection molding and painting method, it is possible to make the decorative surface three-dimensionally curved.

[0078]

The present invention will be described in more detail with reference to the following examples.

[Preparation of Pattern of Woven Irregular Pattern] First, a woven concave and convex pattern 1 as shown in FIG. 1 is prepared as a binary digital image by a computer, and the digital image data is stored in a magnetic disk storage device. Was. that time,
The shape, size (length of the repeating unit curve), the line width between the repeating unit curves, the distance between the repeating unit curves (the arrangement period of the linear grooves), etc. It was prepared by inputting instructions as parameters. As the parallelogram, the shape is a square, the size is 2.5 mm on each side, the line width between the repeating unit curves is 25 μm at the center (in the length direction of the line), and both ends are tapered at 15 μm. . The distance between the repeating unit curves is 50 μm at the center of the line (the arrangement period of the linear groove is 5 μm).
0 μm), the width of the concave portion and the width of the convex portion are 25 μm and 25 μm when the groove is formed in a linear shape. And
As shown in FIG. 6B, a repeating unit curve having one maximum value was obtained by a curved line. Naturally, the size of the unit lattice was determined in consideration of the circumferential size of the embossing plate and an endless pattern.

[Preparation of Embossing Plate] Then, using the binary digital image as described above as a binary mask image, a metal cylinder (cylindrical cylinder) previously coated on its surface with a negative photosensitive resist by a laser exposure plate making apparatus. The surface of the iron core is coated with copper plating) while scanning the surface with an argon laser beam.
The beam intensity is modulated based on the digital image data read from the storage device, the resist is exposed, and after development, the non-resist part is corroded with an aqueous ferric chloride solution, and the resist is removed to form a fabric-like unevenness. An embossed plate was prepared in which the height of the unevenness of the pattern (the height of the unevenness of the linear groove) was 30 μm. In this embossing plate, the line portion of the repeating unit curve was made to be the concave portion of the linear groove, and the line portion was made to be the convex portion in the decorative material.

[Production of Cosmetic Material] The embossing plate was used on one side (surface) of a 100 μm-thick resin sheet made of a black olefin-based thermoplastic elastomer kneaded with a carbon black pigment as a base material. The embossing (pressing with a hot press) was performed to form a woven-like uneven pattern, and a decorative material of the present invention as shown in FIG. 8 having a woven-like uneven pattern on the surface was obtained. In the obtained decorative material, an extremely natural design feeling of carbon cloth, which could not be expressed by a woven pattern by conventional printing, was expressed by a woven uneven pattern.

[0082]

According to the present invention, the design irregularities of the woven texture of woven fibers such as carbon cloth are represented by an uneven pattern by embossing or the like. Design changes not only with patterns (color patterns), but also with the positional relationship between the light source and the observer.
It can be reproduced comprehensively, including gloss and unevenness. Moreover, since it is not necessary to actually use a fabric such as carbon cloth,
It can be cheap. For this reason, it is possible to reproduce the design irregularities of the woven texture even on a three-dimensional curved surface that was difficult because the actual woven fabric could not be sufficiently stretched. Therefore, even a plate or panel having a three-dimensional curved surface can express a carbon cloth design similar to a real thing which is impossible with a woven pattern by printing.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of the shape of a line drawn by a parallel groove in one form of a decorative material having a woven pattern of the present invention.

FIG. 2 is an enlarged plan view in which a part of the plan view of FIG. 1 is enlarged.

FIG. 3 is an explanatory view showing various examples of unit lattices that can be employed.

FIG. 4 is a plan view showing another example of a fabric-like uneven pattern in which linear grooves and flat surfaces are alternately fitted in a unit lattice.

FIG. 5 is an explanatory view for explaining the size and shape of the cross section of a linear groove which becomes a woven uneven pattern.

FIG. 6 is a plan view for explaining various examples of a contour shape of a repeating unit curve as a basis of a linear groove.

FIG. 7 is a cross-sectional view illustrating some examples of the layer configuration in the form of a laminate in the decorative material of the present invention.

FIG. 8 is a cross-sectional view illustrating another example of a layer configuration in the form of a laminate for the decorative material of the present invention.

FIG. 9 is a cross-sectional view illustrating some layer configurations in the form of a transfer sheet for the decorative material of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Woven-like uneven pattern 20000 linear groove 3 Unit lattice 4 Flat surface 5 Concave part (groove concave part) 6 Convex part 7 Repeating unit curve 7A Repeating unit curve which is not adopted in the present invention 11 Cosmetic material base material 12 Adhesive layer 13 (Colored and transparent) colored layer 13A Colored layer 14 Glossy layer 15 Support sheet 16 Transfer layer 17 Release layer (substrate B) B (an uneven pattern is formed) Substrate D Cosmetic material H (for linear grooves) Height W Line width of repeating unit curve w1 Concave width (for linear grooves) w2 Convex width (for linear grooves)

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) // B29K 101: 12 B29K 101: 12 B29L 31:58 B29L 31:58 F term (reference) 2B002 AA08 BA17 BB12 2H113 AA01 AA05 AA06 BA28 BB07 BB10 BB22 CA05 EA05 EA06 EA07 FA24 FA28 3B005 EA08 EB09 FC02Z 4F209 AA03 AB12 AB18 AF01 AF13 AG05 AH48 PA02 PB01 PC01 PC06 PC07 PC08

Claims (5)

[Claims] 1. A decorative material having an uneven pattern formed on a surface of a base material, wherein the uneven pattern has a rectangular coordinate system or an oblique coordinate system in O-XYZ.
When (a) is present in the XY plane and has a predetermined line width in a two-dimensional array lattice in which parallelogram unit cells are arranged in the X direction and the Y direction, (B) a repeating unit curve of the parallel curve group is formed of a smooth continuous curve having one maximum value, and The linear groove is formed by alternately repeating the shallow depth of the height in the Z direction according to each repeating unit curve. (D) The unit lattice in the two-dimensional array lattice includes the X direction. The parallel curve group extending in the Y direction or the parallel curve group extending in the Y direction alternately fits in the X direction and the Y direction of the unit cells arranged two-dimensionally. Cosmetic materials. 2. A decorative material having an uneven pattern formed on a surface of a base material, wherein the uneven pattern has a rectangular coordinate system or an oblique coordinate system in O-XYZ.
When (a) is present in the XY plane and has a predetermined line width in a two-dimensional array lattice in which parallelogram unit cells are arranged in the X direction and the Y direction, (B) a repeating unit curve of the parallel curve group is formed of a smooth continuous curve having one maximum value, and ) The linear groove is formed by alternately repeating the depth in the Z direction by each repeating unit curve at a shallow depth, and (d ') X in the unit lattice in the two-dimensional array lattice. Fabric-like irregular pattern, which is a concave-convex pattern, in which linear grooves and flat surfaces formed by parallel curves extending in the direction or the Y direction are alternately fitted in the X direction and the Y direction of the unit lattice arranged two-dimensionally. A cosmetic material having 3. A linear groove having an array period of 5 to 500 μm,
The height of the unevenness is 5 to 200 μm, and the ratio between the width of the concave portion and the width of the convex portion is configured to be 7: 3 to 3: 7.
The decorative material according to claim 1 or 2, which is a parallelogram having a side of 1 mm to 20 mm. 4. A parallel curve group consisting of a collection of repeating unit curves, (A) a line in which the line width of each repeating unit curve is randomly changed and (B) a line of each repeating unit curve The decorative material having a woven concavo-convex pattern according to any one of claims 1 to 3, wherein at least one of an arrangement in which the width is sequentially changed in an arrangement direction of the lines is adopted. 5. The repetitive unit curve constituting the parallel curve group, wherein the line width is maximum at or near the center in the length direction of the curve. A cosmetic material having the woven uneven pattern according to the above description.