JP2022136462A - decorative material - Google Patents

Abstract

To provide a decorative material capable of expressing characteristic woodgrain tone, and heightened in the degree of expression.SOLUTION: A decorative material has an irregularity imparting layer formed with irregularity patterns on a surface thereof, and has multiple first protrusions and second protrusions arranged between the adjacent first protrusions. The first protrusion has an area larger than that of the second protrusion in a plan view, and has an aspect ratio larger than that of the second protrusion.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to cosmetic materials.

For example, Patent Literature 1 discloses a decorative material having a recessed pattern formed by embossing and having ink or paint applied thereto to express a unique appearance. In such decorative materials, there is a demand for increasing the degree of freedom in appearance (expression), such as expressing a desired impression, due to the diversification of preferences.

Japanese Patent Publication No. 58-14312

In view of the above problems, an object of the present disclosure is to provide a decorative material that enables expression of characteristic wood grains compared to conventional design expressions, and that can increase the degree of freedom of expression.

One aspect of the present disclosure is a decorative material having an unevenness-imparting layer having an uneven pattern formed on the surface, wherein a plurality of first convex portions and second convex portions arranged between adjacent first convex portions and a convex portion, wherein the first convex portion has a larger area than the second convex portion in plan view, and the aspect ratio of the first convex portion is larger than the aspect ratio of the second convex portion.

An ink portion may be provided at least partly between adjacent first protrusions, between adjacent second protrusions, and between first protrusions and second protrusions.

A pattern layer may be further laminated on the decorative material.

According to the present disclosure, it is possible to give an impression of wood grain, particularly old wood, and increase the degree of freedom of expression.

FIG. 1 is an enlarged plan view of a part of the decorative material 10. FIG. FIG. 2 is a diagram showing a part of FIG. 1 further enlarged. FIG. 3 is an enlarged plan view of a part of the decorative material 10, showing the unevenness of the unevenness-imparting layer in shades. FIG. 4 is an enlarged perspective view of a part of the decorative material 10, and is a diagram for explaining the form of the first convex portion 13 and the second convex portion 14. As shown in FIG. FIG. 5 is an enlarged plan view of a part of the decorative material 10, and is a diagram for explaining the form of the first convex portion 13 and the second convex portion 14. As shown in FIG. FIG. 6 is a cross-sectional view of the decorative material 10 cut along the imaginary line IV-IV in FIG. 5 in the z-axis direction. FIG. 7 is a cross-sectional view of the decorative material 10 in which the ink portion 15 is provided. FIG. 8 is a diagram showing a marble pattern as a document image. FIG. 9 is a diagram for explaining a scene in which an uneven pattern is formed on a mold with a laser.

Hereinafter, the present disclosure will be described based on the forms shown in the drawings. However, the present disclosure is not limited to these forms. Note that in the drawings shown below, the sizes and ratios of members may be changed or exaggerated for clarity. In addition, for the sake of visibility, parts that are not required for explanation and repetitive symbols may be omitted.

[Structure of decorative material]
1 is an enlarged plan view of a part of the decorative material 10, and FIG. 2 is a further enlarged view of a part of FIG. FIG. 3 is an enlarged plan view of a part of the decorative material 10 as viewed from the unevenness providing layer 12 side. .
FIG. 4 is an enlarged perspective view of a part of the decorative material 10 for explaining the form of the first protrusion 13 and the second protrusion 14, and FIG. 5 is a plan view.
FIG. 6 shows a cross-sectional view of the decorative material 10 cut in the z-axis direction along the imaginary line indicated by IV-IV in FIG.
For convenience, arrows (x, y, z) representing directions, that is, a coordinate system are also shown in FIGS. Here, the xy direction is the in-plane direction of the decorative material 10, and the z direction is the thickness direction.

As can be seen from FIGS. 1 to 6, the decorative material 10 includes a substrate 11, an unevenness imparting layer 12 provided on one side of the substrate 11, and an ink portion 15 laminated on the unevenness imparting layer 12. is configured with In this embodiment, one surface of the base material 11 is configured to function as the unevenness imparting layer 12 . In other words, in this embodiment, the substrate 11 itself has a single-layer structure that also serves as the unevenness imparting layer 12 . It should be noted that, without being limited to this, it is also possible to adopt a form in which the base material 11 and the unevenness-imparting layer 12 are separate independent layers, and the both layers are laminated to form a multi-layer structure.

Each configuration will be described in more detail below.

<Base material>
The base material 11 is a sheet-like member having a function of holding the unevenness imparting layer 12 and imparting strength to the decorative material 10 . The form of the substrate 11 may be a film, a sheet, or a plate. In general, films, sheets, and plates are referred to in order from relatively thin thickness, but in the present embodiment, the difference in thickness of these substrates is not an essential matter, but an important matter. None. Therefore, even if any of the terms film, sheet, and plate in this specification are appropriately replaced with other terms, the essence of the present invention and the interpretation of the scope of claims remain unchanged.

The material of the base material 11 is not particularly limited as long as it has the same functions as conventionally known decorative materials. For example, the material of the substrate is generally polyolefin resin such as polyethylene, polypropylene, olefin thermoplastic elastomer, ionomer, etc., acrylic resin such as polymethyl methacrylate, polybutyl methacrylate, etc., thermoplastic resin such as polyethylene terephthalate, polybutylene terephthalate, etc. Thermoplastic resins such as polyester resins, thermoplastic urethane resins, vinyl chloride resins, ABS resins (acrylonitrile-butadiene-styrene copolymer), styrene resins, melamine resins, unsaturated polyester resins, two-component curable urethane resins, etc. A curable resin, or an ionizing radiation-curable resin that is a monomer or prepolymer such as a radical polymerization type acrylate type or a cationic polymerization type epoxy type and is cured by ionizing radiation (ultraviolet rays, electron beams, etc.) is used. In addition, when the material of the base material is a resin, it may be colored with a known coloring agent. In addition, paper, non-woven fabric, metal, wood, etc. can also be used in the form of sheets, plates, three-dimensional objects, etc., and can also be used by appropriately laminating them with the above resin materials.

The thickness of the substrate is not particularly limited, but in the case of a sheet-like substrate or film-like substrate, for example, the thickness is about 20 μm or more and 1000 μm or less, and in the case of a plate-like substrate, it is, for example, 1 mm. A thickness of about 20 mm or less is used.

<Unevenness providing layer>
The unevenness imparting layer 12 is provided on one surface of the substrate 11 in this embodiment, and is a layer that imparts an uneven pattern to the decorative material. In this embodiment, the unevenness providing layer 12 includes first convex portions 13 and second convex portions 14 . Each will be explained below.

{First convex part 13}
The first protrusions 13 are portions protruding from the unevenness-providing layer 12 in the z-direction, and the unevenness-providing layer 12 is provided with a plurality of such first protrusions 13 . More specifically, it is preferable that the first convex portion 13 has the following form.

As shown in FIG. 5 , the first convex portion 13 has an area and an aspect ratio larger than those of the second convex portion 14 in plan view (viewpoint when the unevenness providing layer 12 is viewed from the z direction). Here, as shown in FIG. 5, the aspect ratio is represented by the ratio (B/A) of the largest length B to the smallest length A in plan view.
It is preferable that the first convex portion 13 is qualitatively reef-like, peninsula-like, or island-like.
Although the aspect ratio of the first convex portion 13 is not particularly limited, it is preferably 2 or more and 7 or less.

The shape of the first convex portion 13 in a plan view is not particularly limited, but is preferably an indeterminate geometric shape because a reef-like, peninsula-like, or island-like shape is preferable as described above. However, the shape is not limited to this, and may be a regular geometric shape such as a polygon such as a triangle or quadrangle, a circle, or an ellipse.

The protrusion height H of the first protrusion 13 (see FIG. 6, the size of the first protrusion 13 in the z direction) is not particularly limited. Moreover, although the protrusion height may be the same in the several 1st convex part 13, it does not necessarily need to be the same, and the several 1st convex part 13 with different protrusion heights may coexist. Although the range of the protrusion height H is not particularly limited, it is preferably about 20 μm to 200 μm considering the protrusion height of the unevenness of the decorative material.

{Second convex part 14}
The second protrusions 14 are portions that protrude in the z-direction, and are arranged between adjacent first protrusions 13 . Preferably, a plurality of second protrusions 14 are arranged on adjacent first protrusions 13 .
More specifically, it is preferable that the second protrusion 14 has the following form.

As shown in FIG. 5 , the second convex portion 14 has an area smaller than that of the first convex portion 13 in plan view (viewpoint when the unevenness providing layer 12 is viewed from the z direction), an aspect ratio close to 1, and a Smaller than the one convex portion 13 .
Moreover, it is preferable that the second convex portion 14 is qualitatively shaped like an island.

Although the shape of the second convex portion 14 in a plan view is not particularly limited, it is preferably an irregular geometric shape because an island-like shape is preferable as described above. However, the shape is not limited to this, and may be a regular geometric shape such as a polygon such as a triangle or quadrangle, a circle, or an ellipse.

The protrusion height of the second protrusion 14 can also be considered in the same manner as the protrusion height of the first protrusion.

As described above, the area of the first convex portion 13 is larger than the area of the second convex portion 14 in plan view. Although the specific area difference is not limited, it is preferably 10 times or more. This makes it possible to further emphasize the strength (broken atmosphere) of the old tree bark.

In addition, the aspect ratio of the first convex portion 13 is not particularly limited as long as it is larger than the aspect ratio of the second convex portion 14, but the aspect ratio of the first convex portion 13 is preferably 1.5 times or more. preferable.

<Other configurations>
In addition to the above, the cosmetic material may have the following configuration.
{Ink part}
As shown in the cross section in FIG. 7 , ink is applied between adjacent first protrusions 13 , between adjacent second protrusions 14 , and/or between first protrusions 13 and second protrusions 14 . A portion 15 may be provided. With this, it is possible to produce an appearance according to need.
When the ink part 15 is provided, it may be arranged so as to span the adjacent convex parts (the first convex part 13 and the second convex part 14), or the ink part 15 may be partially formed without crossing the adjacent convex parts. Some parts may not exist.

The ink material forming the ink portion 15 is not particularly limited, and known materials can be used. For example, a vehicle containing one or more of coloring pigments, matting pigments, dyes, ultraviolet absorbers, and the like can be applied. The vehicle can be appropriately selected from various thermoplastic resins, thermosetting resins, and ionizing radiation effect resins. Such an ink part is formed by various known methods, for example, the so-called valley print method disclosed in Japanese Patent Publication No. 52-130719, Japanese Patent Publication No. 59-14352, Japanese Patent Publication No. 58-14312. It can be formed by a so-called wiping method disclosed in et al.

{Pattern layer}
The pattern layer is a layer in which a desired pattern is expressed, and in this embodiment, for example, a wood grain pattern representing the surface of old wood is expressed. The pattern layer may be laminated on the unevenness imparting layer 12, or may be laminated on the surface of the substrate 11 opposite to the side on which the unevenness imparting layer 12 is arranged.

The pattern layer is formed by appropriately arranging coloring agents such as pigments and dyes so as to obtain a desired design. The pattern layer is formed by a printing method such as offset printing, flexographic printing, gravure printing, silk screen printing, spray printing, or inkjet printing, or a transfer method for transferring a printed pattern.

As the ink used for forming the pattern layer, an ink obtained by appropriately mixing a binder resin with a coloring agent such as a pigment or a dye, an extender pigment, a solvent, a stabilizer, a plasticizer, a catalyst, a curing agent, or the like is used.
The binder resin is not particularly limited, and examples include acrylic resins, styrene resins, polyester resins, urethane resins, chlorinated polyolefin resins, vinyl chloride-vinyl acetate copolymer resins, polyvinyl butyral resins, and alkyd resins. Resins, petroleum-based resins, ketone resins, epoxy-based resins, melamine-based resins, fluorine-based resins, silicone-based resins, cellulose derivatives, rubber-based resins, and the like. These resins can be used alone or in combination of two or more.

The coloring agent is not particularly limited, and examples thereof include inorganic black pigments such as carbon black (ink) and iron black, organic black pigments (or dyes) such as azomethine azo black and perylene black, titanium white, antimony white, zinc white, and the like. white pigment, yellow lead, titanium yellow, red iron oxide, cadmium red, ultramarine blue, inorganic chromatic pigments such as cobalt blue, organic chromatic pigments or dyes such as quinacridone red, isoindolinone yellow, nickel azo complex, phthalocyanine blue, aluminum , metal pigments made of scale-like foil pieces such as brass, titanium dioxide-coated mica, and pearlescent pigments made of scale-like foil pieces such as basic lead carbonate. Suitable pigments can be appropriately used singly or in the form of a mixture of two or more.
Additives such as an antioxidant, an ultraviolet absorber, and a light stabilizer may be contained in the picture layer.

The thickness of the pattern layer is preferably 0.1 μm or more and 40 μm or less, more preferably 0.3 μm or more and 20 μm or less, and even more preferably 0.5 μm or more and 10 μm or less, from the viewpoint of exhibiting the design property of the pattern well.

{Matte layer}
The decorative material of the present disclosure can further include a matting layer on the unevenness imparting layer 12 . When the matte layer is provided over the entire surface, it has the effect of uniformly lowering the gloss of the entire surface (becomes low gloss or matte), and when it is partially provided, the difference in gloss from the surrounding area is produced. can be generated to express a visual unevenness.
The matte layer may be provided on the entire surface of the unevenness-imparting layer 12, but in consideration of generating a gloss difference with the surrounding area to express a visual unevenness, the convex portion (first It is preferable to provide in and around a relatively concave region between the convex portion 13 and the second convex portion 14), and it is more preferred to provide it in a limited area of the concave portion.

The matting layer preferably contains a matting agent from the viewpoint of improving the matting effect.
Examples of matting agents include inorganic fine particles and organic fine particles. Examples of inorganic fine particles include particles made of silica, alumina, aluminosilicate, kaolinite, calcium carbonate, barium sulfate, glass, and the like.
Examples of organic fine particles include particles made of acrylic resins, polycarbonate resins, urethane resins, urea resins, benzoguanamine resins, benzoguanamine-melamine-formaldehyde condensates, and the like. The particle size of these matting agents is about 1 μm to 20 μm.
As the matting agent, silica particles are suitable from the viewpoint of high matting effect and easy control of gloss. As the matting agent, one of the above-mentioned matting agents may be used alone, or two or more of them may be used in combination.
The particle size of the matting agent is preferably 1 μm or more and 10 μm or less, more preferably 2 μm or more and 9 μm or less, and even more preferably 3 μm or more and 7 μm or less, from the viewpoint of matting effect and gloss control. .

{Protective layer}
In the decorative material, a protective layer may be further laminated on the unevenness providing layer 12 . This protects the upholstery from contamination and damage. Such a protective layer can be made of transparent resin, transparent glass, or the like. When using a transparent resin, for example, a layer made of a thermoplastic resin or a cured resin can be used.
If the base material 11 and the unevenness imparting layer 12 alone can ensure sufficient surface durability performance such as stain resistance and scratch resistance in the intended application, the protective layer can be omitted.

Examples of thermoplastic resins include acrylic resins such as polymethyl (meth) acrylate and polyethyl (meth) acrylate, polyolefin resins such as polypropylene and polyethylene, fluororesins such as polyvinyl fluoride and polyvinylidene fluoride, and polyethylene terephthalate ( PET), polyester resins such as polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polycarbonate resins, vinyl chloride resins, acrylonitrile-butadiene-styrene resins (ABS resins), acrylonitrile-styrene-acrylic acid ester resins, etc. mentioned. In addition, "(meth)acryl" means acryl or methacryl.

A layer made of a cured resin is a layer obtained by curing a curable resin composition, and a 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 and an ionizing radiation-curable resin composition containing an ionizing radiation-curable resin.
Thermosetting resins include, for example, unsaturated polyester resins, polyurethane resins (including two-component curing type polyurethanes), epoxy resins, aminoalkyd resins, phenolic resins, urea resins, diallyl phthalate resins, melamine resins, guanamine resins, Melamine-urea cocondensation resins, silicon resins, polysiloxane resins and the like can be mentioned. The thermosetting resin composition optionally contains components involved in the curing reaction of the thermosetting resin, such as catalysts, curing agents (including cross-linking agents, polymerization initiators, polymerization accelerators, etc.), and the like. may
An ionizing radiation-curable resin is a resin that undergoes a cross-linking polymerization reaction when irradiated with ionizing radiation and changes into a three-dimensional polymer structure. Among electromagnetic waves and charged particle beams, ionizing radiation has energy quanta capable of polymerizing or cross-linking molecules. Ultraviolet (UV) or electron beams (EB) are usually used, although charged particle beams such as radiation and ion beams are also included. Among ionizing radiation-curable resins, electron beam-curable resins can be solvent-free, do not require a photopolymerization initiator, and provide stable curing properties.
As the ionizing radiation-curable resin, for example, one type of monomer, oligomer, or prepolymer having a polymerizable unsaturated bond such as a (meth)acryloyl group or the like, an epoxy group, or the like in the molecule that can be crosslinked by irradiation with ionizing radiation. Compositions containing the above can be used.

Although the thickness of the protective layer is not particularly limited, it can be 1 μm or more and 50 μm or less. If the thickness is thin, the durability against bending is high, but the scratch resistance is weak. It can be a protective layer. Therefore, the thickness may be 1 μm or more and 10 μm or less.

[Method for producing decorative material 10]
Next, an example of a method for manufacturing a decorative material will be described using the decorative material 10 as an example. However, the method of manufacturing the decorative material is not limited to this.
The manufacturing method described below includes a step of preparing a grayscale image, a step of preparing a block copy image, a step of preparing a plate, and a step of forming an unevenness imparting layer.

<Process of creating a grayscale image>
In the step of creating a grayscale image, the uneven pattern (first convex portion, second convex portion) in plan view to be expressed on the concave-convex providing layer 12 is formed as a grayscale image consisting of magnitudes of optical densities. For example, in this embodiment, graphic design drawing software "Illustrator" manufactured by Adobe Systems Incorporated can be used to create 8-bit image gradation (256 gradations) in TIFF format with a resolution of 2540 dpi. .

<Process of creating block copy image>
In the step of creating a block copy image, the original image is processed by a conversion program for converting the density to the depth of the embossed plate, so that the first convex portion, the second convex portion, and the second convex portion are converted into binary images corresponding to the density gradation image of the pattern. The plate depth of the convex portion is generated and arranged on the two-dimensional virtual plane XY plane, and the block copy image is obtained as digital data.
At that time, the minimum value of optical density (eg, 0) corresponds to the minimum value of unevenness data (eg, 0 μm), and the maximum value of optical density (eg, 255) corresponds to the maximum value of unevenness data (eg, 250 μm). By matching, the grayscale image data consisting of the distribution of the optical density P (X, Y) at each coordinate (X, Y) on the two-dimensional plane is converted from the distribution of the plate depth D (X, Y) at the same coordinate. Convert to embossed plate depth data H(X, Y).

In this embodiment, the finally obtained decorative material aims to reproduce the design and appearance of the surface of an old wood board. By using the grayscale image of ), it is possible to reproduce the design appearance of a good aged wood board. FIG. 8 shows an original image having a marble pattern according to one example. As described above, it is not always necessary to use a wood grain pattern as the document image, and in some cases, a stone grain pattern such as marble can be used as the document image.

In this step, a plan view image of the unevenness imparting layer is generated as a binary image according to the conditions for generating the first convex portion and the second convex portion. Here, the density of the plan view image represents the plate depth of the embossed plate (the optical density is associated with the plate depth). Thus, a block copy image is obtained.

<Process of making a plate>
In the step of making a plate, an embossed plate (molding mold for decorative material) having a surface with a concave-convex pattern in a plan view shape is produced based on the block copy image. Specifically, the manufacturing process of the uneven pattern includes the following procedures (1) to (4).

(1) Metal Roll Preparing Step A metal roll 20 for embossing plate engraving as shown in FIG. 9 was prepared. The metal roll 20 is formed by plating a copper layer on the surface of a hollow iron cylinder having rotary drive shafts 21 at both ends in the axial direction. The surface of the metal roll 20 was roughened by grinding with a whetstone to prevent a decrease in engraving efficiency due to specular reflection of engraving laser light.

(2) Laser light engraving process As schematically shown in FIG. 9, an uneven pattern image is created on the surface of the metal roll 20 prepared in step (1) in the block copy image creation process using a laser light direct engraving machine. Engraving based on data. As a result, an uneven shape is formed on the surface that is the same as the uneven pattern on the surface of the decorative material as shown in FIG. do.
Therefore, the shape to be provided by the uneven pattern on the embossed plate is a form in which the uneven relationship of the above-described uneven pattern on the decorative material is reversed, and can be considered in the same way.

The metal roll 20 is driven by an electric motor via its rotary drive shaft 21 and rotates about the rotary drive shaft 21 as its central axis. The surface of the metal roll 20 is scanned with a fiber laser beam P emitted from the laser head 22 having an oscillation wavelength of 1024 nm, a laser spot diameter of 10 μm, and an output of 360 W. At that time, the laser light is switched ON-OFF (switching between irradiation and non-irradiation) according to the density value of the uneven pattern image data created in step (1), and the irradiation position is irradiated with the laser light once. Evaporation of the metal forms recesses with a depth of 10 μm. In this example, the scanning of the metal roll surface with the laser beam is repeated ten times, for example. Further, in order to prevent the evaporated metal from turning into powder and remaining or adhering to the surface of the metal roll 20, the engraving liquid T was sprayed from the engraving liquid discharge port 23 onto the laser beam irradiated area of the surface of the metal roll 20. Laser light irradiation is performed in this state.
At that time, for example, at the position coordinates of the image density corresponding to the plate depth of 50 μm on the uneven pattern image data, the laser light is irradiated (ON) only for the first five scans out of a total of 25 scans, and the remaining 20 scans are performed. For each batch, the laser beam is controlled to be non-irradiated (OFF) to obtain the desired depth.
By completing the scanning of the laser beam, a desired uneven shape is formed on the surface of the metal roll 20 .

(3) Electropolishing Step After washing the engraving liquid, electropolishing is performed to remove metal residue adhering to the surface of the metal roll 20 .

(4) Chromium Plating Step After the step (3), a chromium layer having a thickness of 10 μm was formed on the surface of the metal roll by plating.

As described above, it is possible to obtain a plate (molding mold for decorative material, embossed plate in the present embodiment) having an uneven surface in which the uneven pattern formed on the surface of the unevenness-imparting layer 12 is reversed.

<Step of forming unevenness imparting layer>
Next, in the step of forming the unevenness imparting layer, the decorative material 10 is obtained by embossing the substrate 11 using the produced plate (embossing plate). Embossing may be performed by any suitable known method, and is not particularly limited. A representative method of embossing is, for example, as follows.
A resin sheet made of a thermoplastic resin such as a polyolefin resin is used as a base material. This base material is heated and softened, and an embossing plate is pressed against the surface of the base material to form the uneven pattern on the surface of the embossing plate on the surface of the resin sheet. Then, the resin sheet is cooled and solidified to fix the uneven pattern on the resin sheet. After that, the resin sheet on which the uneven pattern is formed is released from the embossing plate.
Here, various embossing methods will be further explained, for example, the following methods (A) to (E).

(A) A resin sheet serving as a base material is heated and softened, and an embossing plate is pressed to perform embossing.
(B) Embossing and lamination by heat-sealing a resin sheet (base material) that serves as a surface sheet and a resin sheet (second base material) that serves as a base sheet by heat and pressure when the embossing plate is pressed. and are simultaneously embossed by a doubling embossing method.
(C) A resin sheet (base material) to be used as a surface sheet is melt-extruded from a T-die, brought into contact with a cylindrical embossing plate that also serves as a cooling roller, and embossed at the same time as forming the surface sheet. At this time, a resin sheet (second base material) inserted into the back side of the top sheet and used as a base sheet is heat-sealed to perform doubling embossing at the same time as film formation.
(D) As disclosed in JP-A-57-87318, JP-A-7-32476, etc., the surface of a cylindrical embossing plate is coated with an uncured liquid of an ionizing radiation curable resin. Further, a base sheet made of a resin sheet or the like is superimposed thereon, and ionizing radiation is irradiated to cure the uncured liquid material to obtain a cured material. At that time, after the cured product is adhered to the base sheet, the mold is released from the embossing plate to form a substrate comprising the base sheet and the cured product on the base sheet, thereby embossing the substrate.
(E) Impregnated paper obtained by impregnating paper such as titanium paper with uncured thermosetting resin such as melamine resin is placed on a backing material such as core paper or wood plywood, and a plurality of these are placed A thermosetting resin decorative material is produced by laminating and integrating each layer by hot-press molding the layers. At that time, by inserting an embossing plate on the surface side of the impregnated paper, the thermosetting resin is impregnated and hardened to form a decorative material, and the surface is embossed simultaneously with the hot press.

In addition, thermoplastic resins are typically used as the material of the substrate used in the embossing methods (A) to (C), and the material of the substrate used in the embossing method (D) is typically In (E), an ionizing radiation-curable resin is used, and in the embossing method (E), a thermosetting resin is typically used as the material of the base material.

<Process of filling ink>
When the decorative material is provided with the ink portion 15, a step of filling with ink can be included. In this step, the recesses between the projections (the first projections 13 and the second projections 14) of the unevenness providing layer 12 formed on the surface of the substrate 11 are filled with ink by a so-called wiping method. An ink part 15 is formed. In this method, the ink (uncured state) of the material to be the ink portion 15 is supplied to the surface of the substrate 11 on which the unevenness imparting layer 12 is formed, and the ink is scratched (wiped) with a doctor blade. ). As a result, the excess ink can be removed and the ink can be pushed into the concave portions between the convex portions. And do it by moving the doctor blade.
Then, the ink portion 15 is formed by curing the ink by an appropriate method.

[Use of decorative materials]
Applications of the decorative materials described above are not particularly limited, but examples include building interior materials such as walls, floors, and ceilings; Fittings such as door frames, surface materials for fixtures such as rims, baseboards, and handrails, surface materials for home appliances such as TV receivers and refrigerators, and office equipment such as copiers, and furniture surfaces such as chests of drawers materials, surface materials for containers such as boxes and resin bottles, interior and exterior materials for vehicles and the like, interior and exterior materials for ships, and the like.

REFERENCE SIGNS LIST 10 Decorative material 11 Base material 12 Concavo-convex providing layer 13 First protrusion 14 Second protrusion 15 Ink part

Claims (3)

A decorative material having an unevenness imparting layer in which an uneven pattern is formed on the surface,
a plurality of first protrusions;
and a second convex portion arranged between the adjacent first convex portions,
The first convex portion has a larger area than the second convex portion in plan view,
The aspect ratio of the first convex portion is greater than the aspect ratio of the second convex portion,
cosmetic material. An ink portion is provided at least partially between the adjacent first protrusions, between the adjacent second protrusions, and between the first protrusions and the second protrusions. , The cosmetic material according to claim 1. 3. The decorative material according to claim 1, further comprising a pattern layer.

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