JP2023046957A - Decorative material, and production method of decorative material - Google Patents

Abstract

To provide a decorative material capable of enhancing an ink filling factor into a groove.SOLUTION: A decorative material includes a substrate layer and a surface protective layer. The substrate layer has a plurality of grooves on the face of the surface protective layer side. At least part of the grooves has a filling part containing a coloring agent. When a groove among the grooves that extends in the direction in the range of the vertical direction ±10 degrees to the predetermined direction is defined as a groove of the vertical direction, 60% or more of the groove of the vertical direction on the number base satisfy the following expression 1A: H≤-0.0425×W+86 μm (expression 1A), (in the expression 1A, H indicates a depth of a groove and W indicates a width of a groove in μm.)SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present disclosure relates to a decorative material and a method for manufacturing the decorative material.

Decorative materials are used, for example, to decorate interior and exterior materials such as furniture, fittings, and walls. Some decorative materials have a plurality of grooves and ink is filled inside the grooves in order to impart a predetermined texture.
For the decorative material in which the grooves are filled with ink, for example, "the step of applying ink for filling containing a coloring agent to the surface of the decorative material having grooves and then scraping off the ink for filling in a predetermined direction" is performed. It can be produced by going through. In this specification, the process described above may be referred to as "scraping" or "wiping".
When the ink for the filling section containing the colorant is placed on the surface of the decorative material having the grooves, the grooves are partially filled with the ink. Then, when the ink is scraped off, the excess ink can be removed and the ink can be pushed into a part of the groove.

As a decorative material manufactured through scraping, for example, the decorative materials of Patent Documents 1 and 2 have been proposed.

JP-A-1-314168 International publication number WO2021/060530

In the decorative materials of Patent Documents 1 and 2, there were cases where ink was not filled in the grooves extending in the direction perpendicular to the scraping direction. Therefore, in the decorative materials of Patent Documents 1 and 2, portions not filled with ink are conspicuous, and the texture is not satisfactory. Further, depending on the pattern of the decorative material, the direction in which the groove extends may be biased toward a predetermined direction. As described above, the above-described texture problem is serious in decorative materials in which the direction of the grooves is biased toward a predetermined direction.

An object of the present disclosure is to provide a decorative material capable of increasing the filling rate of ink in grooves. Another object of the present disclosure is to provide a method for manufacturing a decorative material capable of increasing the filling rate of ink in grooves extending in the direction perpendicular to the scraping direction.

In order to solve the above problems, the present disclosure provides the following [1] to [4].
[1] A decorative material having a substrate layer and a surface protective layer,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Among the grooves, when grooves extending in a direction within a range of ±10 degrees perpendicular to a predetermined direction are defined as vertical grooves,
A decorative material in which 60% or more of the grooves in the vertical direction, based on the number, satisfy the following formula 1A.
H≦−0.0425×W+86 μm (Formula 1A)
(In formula 1A, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)
[2] A decorative material having a substrate layer and a surface protective layer,
The decorative material has a rectangular shape in plan view having a longitudinal direction and a lateral direction,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Of the grooves, when the grooves extending in the longitudinal direction ±10 degrees are defined as longitudinal grooves,
A decorative material in which 60% or more of the grooves in the longitudinal direction, based on the number, satisfy the following formula 1B.
H≦−0.0425×W+86 μm (Formula 1B)
(In Formula 1B, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)
[3] A decorative material having a substrate layer and a surface protective layer,
The decorative material is roll-shaped,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Among the grooves, when the grooves extending in the direction of ±10 degrees in the width direction of the roll of the decorative material are defined as the grooves in the width direction,
A decorative material in which 60% or more of the number-based grooves in the width direction satisfy the following formula 1C.
H≦−0.0425×W+86 μm (Formula 1C)
(In formula 1C, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)
[4] A method for producing a decorative material, comprising steps 1 to 4 below.
Step 1: A step of forming a plurality of grooves by shaping the base material layer with an embossing plate. In step 1, when grooves extending in a direction within a range of ±10 degrees perpendicular to the scraping direction in step 3 are defined as vertical grooves, the number of vertical grooves is based on the number of grooves in the vertical direction. At least 60% of the satisfy the following formula 1D.
H≦−0.0425×W+86 μm (Formula 1D)
(In Formula 1D, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)
Step 2: A step of applying ink for a filling portion containing a colorant to the surface of the substrate layer formed by the embossing plate.
Step 3: A step of scraping the ink for the filling portion in a predetermined direction to form a filling portion containing a coloring agent inside at least a part of the grooves.
Step 4: A step of forming a surface protective layer on the surface of the substrate layer formed by the embossing plate.

The decorative material of the present disclosure can increase the filling rate of ink in the grooves. In addition, the method for manufacturing a decorative material according to the present disclosure can easily manufacture a decorative material that can increase the filling rate of ink in the grooves extending in the direction perpendicular to the scraping direction.

1 is a cross-sectional view showing one embodiment of a cosmetic material of the present disclosure; FIG. FIG. 5 is a diagram for explaining the directionality of the height of the filling portion in the groove. It is a figure which shows whether the groove|channel which extends perpendicularly|vertically with respect to a predetermined direction has a filling part. In FIG. 3, "●" indicates a groove with a filling portion, and "x" indicates a groove without a filling portion. FIG. 4 is a plan view showing an embodiment of a planar shape of grooves in a base material layer. It is a figure for demonstrating the method of calculating the depth, width, and length of a groove|channel.

[Cosmetic material (first cosmetic material)]
The first cosmetic material included in the present disclosure is
Having a substrate layer and a surface protective layer,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Among the grooves, when grooves extending in a direction within a range of ±10 degrees perpendicular to a predetermined direction are defined as vertical grooves,
At least 60% of the grooves in the vertical direction satisfy the following formula 1A.
H≦−0.0425×W+86 μm (Formula 1A)
(In formula 1A, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)

FIG. 1 is a cross-sectional view showing one embodiment of the cosmetic material 100 of the present disclosure.
The decorative material 100 of FIG. 1 has a base material layer 10 and a surface protective layer 40 . In FIG. 1, the substrate layer 10 has a plurality of grooves 21 on the surface on the surface protection layer 40 side. In FIG. 1, at least some of the grooves 21 have filling portions 22 containing a coloring agent inside the grooves. In FIG. 1, the substrate layer 10 is a multi-layer substrate layer having a transparent resin layer 11, an adhesive layer 12, a decorative layer 13 and a colored substrate 14 in this order. The decorative material 100 of FIG. 1 has a primer layer 30 between the base material layer 10 and the surface protective layer 40 .
1 to 5 are diagrams common to the first to third cosmetic materials.

<Base material layer>
The substrate layer of the first decorative material is required to have a plurality of grooves on the surface on the surface protective layer side. At least some of the grooves are required to have a filling portion containing a coloring agent inside the groove. Among the grooves, when grooves extending in a direction within a range of ± 10 degrees perpendicular to a predetermined direction are defined as vertical grooves, 60% or more of the number of vertical grooves It is required to satisfy Equation 1A.
H≦−0.0425×W+86 μm (Formula 1A)
(In formula 1A, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)

In the first decorative material of the present disclosure, the substrate layer has a plurality of grooves, and the grooves satisfy the above formula 1A, so that the filling rate of ink in the grooves can be increased. The technical significance of Formula 1A will be described below.
First, the filling portion formed inside the groove has a direction in which the height is uneven and a direction in which the height is uniform. In this specification, the direction in which the height of the filling portion is biased is defined as the "predetermined direction". Further, in this specification, the direction in which the heights of the filling portions are uniform is defined as "perpendicular to a predetermined direction". The “height of the filling portion” means the position of the filling portion in the thickness direction of the decorative material. That is, the "height of the filling" may differ from the thickness of the filling.
“The height of the filling portion is uneven” means that the height difference of the filling portion is 5 μm or more. When there are a plurality of directions in which the difference in height of the filling portion is 5 μm or more, the direction in which the difference in height of the filling portion per unit length is the largest is defined as “the height of the filling portion is biased. ” direction. In the direction in which the heights of the filled portions are uniform, the height difference of the filled portions is preferably less than 5 μm, more preferably 3 μm or less.

A decorative material having a direction in which the heights of the filling portions are uneven and a direction in which the heights of the filling portions are uniform can be confirmed, for example, in a decorative material produced through scraping. That is, when the filling ink containing the coloring agent is placed on the grooved surface of the decorative material and then the ink for filling is scraped off in a predetermined direction, the height of the filling is likely to be uneven in the scraping direction. On the other hand, in the direction perpendicular to the scraping direction, the height of the filling portion tends to be uniform. The above will be further explained with reference to FIG. Consider the case where ink is put on the surface of the decorative material shown in FIG. In this case, in the YY' direction along the scraping direction, as shown in the cross-sectional view of FIG. On the other hand, in the XX' direction, which is perpendicular to the scraping direction, the ink tends to be filled evenly in height, as shown in the cross-sectional view of FIG. 2(c).
Therefore, in the present disclosure, the “predetermined direction” can also be said to mean the “scraping direction”. In addition, in the present disclosure, “perpendicular to a predetermined direction” can be said to mean “perpendicular to the scraping direction”.
Further, among the grooves of the base material layer, the grooves extending substantially perpendicularly to the scraping direction are difficult to be filled with ink. The reason for this is that ink is easily scraped out of the grooves during scraping.
Therefore, in the present disclosure, "a groove extending in a direction within a range of ±10 degrees perpendicular to a predetermined direction" means "a groove that is difficult to be filled with ink during scraping (≈ It can be said that it specifies the groove extending in the vertical direction ±10 degrees).
That is, Formula 1A defines that 60% or more of grooves that are difficult to fill with ink during scraping exhibit a predetermined relationship between groove depth and groove width.

The present inventor examined what kind of grooves, which extend in a direction perpendicular to a predetermined direction ±10 degrees, are likely to be filled with ink during scraping. As a result, it was found that even if the grooves extend in a direction perpendicular to a predetermined direction ±10 degrees, if the grooves satisfy Formula 1A, filling with ink will easily form filled portions.
FIG. 3 is a diagram in which grooves extending in a direction perpendicular to a predetermined direction by ±10 degrees are plotted with "" for grooves having a filling portion and "×" for grooves without a filling portion. In FIG. 3, the horizontal axis indicates the groove width "W [μm]", and the vertical axis indicates the groove depth "H [μm]". The dashed line in FIG. 3 is "H=-0.0425×W+86 μm".
From FIG. 3, the region satisfying “H≦−0.0425×W+86 μm” has a high ratio of grooves having a filled portion, while the region not satisfying “H≦−0.0425×W+86 μm” has a filled portion. It can be confirmed that the ratio of the grooves to have is low. In the case of FIG. 3, in the region satisfying "H≦−0.0425×W+86 μm", about 85% of the grooves are filled. From this result, even if it is a "groove that is difficult to fill with ink during scraping (≈groove extending in a direction ± 10 degrees perpendicular to the scraping direction)", if the groove satisfies Equation 1A, It can be confirmed that the filling portion is easily formed.
The first facing material of the present disclosure specifies that 60% or more of the number-based vertical grooves satisfy Equation 1A. Therefore, the first facing material of the present disclosure can form fills in at least about half the number of vertical grooves (60% x 85% = 51%).

The percentage of the grooves in the vertical direction that satisfies Formula 1A is preferably 70% or more, more preferably 80% or more, more preferably 90% or more, and 95% or more, based on the number of grooves. 1 is more preferred, and 100% is most preferred. By satisfying the ratio, it is possible to further increase the ratio of filling portions formed in the vertical grooves.

In FIG. 3, "grooves with filled portions" and "grooves without filled portions" were distinguished as follows.
Grooves are observed visually and with a laser microscope, and grooves in which the ratio of the area in which the filler exists to the area of the groove is 50% or more are defined as "grooves having a filling portion", and the filler is present in the area of the groove. A groove having a ratio of the area filled with less than 50% was determined as a "groove having no filling portion". As a laser microscope, a product number VK-X1000 manufactured by Keyence Corporation was used.

Regarding grooves in directions other than the vertical direction, filling portions are likely to be formed in the grooves, regardless of Formula 1A. Therefore, if all the grooves are formed in a direction other than the vertical direction, the filling rate problem will not occur. However, if all the grooves are grooves in a direction other than the vertical direction, the degree of freedom in design is lacking, and further, the absence of grooves in a specific direction causes a sense of discomfort, so it is difficult to obtain a decorative material with a high texture. Have difficulty.

<<Groove shape, etc.>>
The shape of the grooves of the base layer is not particularly limited as long as the formula 1A is satisfied. Embodiments of the grooves are described below.

The shape of the groove in plan view is not particularly limited, and various patterns can be used.
When the design represented by the entire decorative material is a wood pattern, the plan view shape of the groove preferably forms one or more patterns selected from cracks, conduits, autumn wood, and knots of roasted cedar. "Cracks in burnt cedar" refer to cracks that form perpendicular to the direction of grain when the surface of a cedar board is scorched to form a carbon layer.
When the design expressed by the entire decorative material is a pattern of stones such as travertine, it is preferable that the shape of the groove in plan view is a concave portion.
FIG. 4 is a diagram showing an embodiment of a plan view shape of the grooves 21 of the base material layer 10. As shown in FIG.

_D1 , which is the direction in which the individual grooves extend, means the average direction of the directions in which the individual grooves extend. Also, the direction in which each groove extends means the direction in which the distance between any two points in each groove is maximized. For example, in the case of the groove in FIG. 5, the direction connecting points A and B is the direction _D1 in which the groove extends.
The length of each groove means the maximum distance between any two points in each groove. In the groove of FIG. 5, the distance between points A and B is the length of the groove.

Although the width of the groove is not particularly limited, it is preferably 30 μm or more and 1000 μm or less, more preferably 50 μm or more and 900 μm or less, and even more preferably 80 μm or more and 800 μm or less.
Although the depth of each groove is not limited, it is preferably 10 μm or more and 100 μm or less, more preferably 20 μm or more and 95 μm or less, and even more preferably 30 μm or more and 90 μm or less.
Although the length of each groove is not limited, it is preferably 1 mm or more and 100 mm or less, more preferably 2 mm or more and 80 mm or less, and even more preferably 3 mm or more and 50 mm or less.

The depth of each groove can be calculated, for example, in steps A1 and A2 below.
A1: For each groove, the height data across the groove is measured at 5 randomly selected points to obtain 5 profile curves with height data. When the planar shape of the groove is an elongated shape extending in an arbitrary direction, height data is measured in a direction orthogonal to _D1 , which is the direction in which the groove extends. For example, when the planar view shape is the groove shown in FIG. 5, the height data is measured in the dotted line direction perpendicular to the extending direction D1 of the groove at five points a to e.
A2: From the height data measured in A1, the maximum depth of each measurement point is extracted, and the average value of the five maximum depths is taken as the average depth of each groove.

The width of each groove can be calculated, for example, by B1 below.
B1: From the five cross-sectional curves measured in A1 above, the width of the groove at each measurement point is calculated. Then, the average value of the widths at five locations is taken as the width of each groove.

Of all the grooves present in the base material layer, the ratio of the grooves extending in the range of ±40 degrees perpendicular to the predetermined direction should be 80% or more on a number basis in order to further enhance the texture. It is preferably 90% or more, more preferably 97% or more, and most preferably 100%.
The fact that the direction of the grooves in the base material layer has the above ratio means that the direction in which the grooves extend is biased toward a predetermined direction. As described above, the first decorative material of the present disclosure is preferable in that it tends to have a good texture even when the direction of the grooves is biased toward a predetermined direction.

With respect to a predetermined direction, the standard deviation σ of the directions of all the grooves present in the base layer is preferably 1 degree or more and 20 degrees or less, more preferably 2 degrees or more and 15 degrees or less. It is preferably 3 degrees or more and 10 degrees or less. By setting the standard deviation .sigma.
The ratio of the area where the grooves are formed to the total area of the base material layer is preferably 50% or more and 95% or less, more preferably 60% or more and 90% or less, and 70% or more and 80% or less. is more preferable.

<<Method of Forming Groove>>
The grooves in the base material layer can be formed, for example, by shaping with an embossing plate. An embossed plate can be produced, for example, by engraving a metal roll with a laser beam.
A technique for engraving a metal roll with laser light is described, for example, in International Publication No. WO2020/203737.

The temperature and pressure when the embossing plate is used may be appropriately adjusted depending on the material of the substrate layer. If the substrate of the substrate layer and the transparent resin layer are polyolefin, the temperature is 140° C. or higher and 180° C. or lower and 10 kg/cm ² or higher and 50 kg/cm ² or lower.
A representative method of shaping with an embossing plate is, for example, as follows.
First, an embossing plate is pressed against the surface of the softened base material layer to form a pattern on the surface of the embossing plate. Then, the pattern formed on the base material layer is fixed by solidifying the base material layer by cooling or the like. After that, the pattern-formed substrate layer is released from the embossing plate.

<<Layer structure of base material layer>>
The substrate layer may have a single-layer structure, or may have a multilayer structure in which a plurality of layers are laminated. Examples of the layer structure of the substrate layer include the following (1) to (10). In (1) to (10) below, "/" indicates an interface between layers. The substrate layers (1) to (10) below are preferably arranged so that the layer described on the left faces the surface protective layer.
(1) Single layer of base material (2) Decorative layer/base material (3) Base material/decorating layer (4) Transparent resin layer/base material (5) Transparent resin layer/decorating layer/base material (6) Transparent resin layer/substrate/decorative layer (7) Transparent resin layer/adhesive layer/substrate (8) Transparent resin layer/adhesive layer/decorative layer/substrate (9) Transparent resin layer/decoration Layer/adhesive layer/substrate (10) Transparent resin layer/adhesive layer/substrate/decorative layer

-Base material-
The material of the base material is not particularly limited, but a plastic film or a composite of a plastic film and paper is preferred because grooves can be easily formed by embossing or the like.

Specific examples of resins constituting plastic films include polyolefin resins such as polyethylene and polypropylene, vinyl chloride resins, vinylidene chloride resins, polyvinyl alcohol, vinyl resins such as ethylene-vinyl alcohol copolymers, polyethylene terephthalate, and polybutylene. Examples include polyester resins such as terephthalate, acrylic resins such as polymethyl methacrylate, polymethyl acrylate and polyethyl methacrylate, polystyrene, acrylonitrile-butadiene-styrene copolymer (ABS resin), cellulose triacetate, and polycarbonate. Among these, polyolefin-based resins, vinyl chloride resins, polyester resins, and acrylic resins, which are excellent in printability and molding processability, are preferred.

The substrate may be a transparent substrate or a colored substrate. Also, the substrate may be a laminated substrate obtained by laminating a plurality of substrates. In addition, when the layer structure of the base material layer is the above (6) or (10), it is preferable to use a transparent base material as the base material in order to visually recognize the decorative layer through the base material.

The thickness of the substrate is not particularly limited, but is preferably 20 μm or more and 200 μm or less, more preferably 40 μm or more and 160 μm or less, and even more preferably 40 μm or more and 100 μm or less.

In order to improve the adhesion with the layer provided on the substrate, one side or both sides of the substrate may be subjected to adhesion promoting treatment such as physical treatment or chemical surface treatment.

―Decoration layer―
The base layer may have a decorative layer in order to improve the design of the decorative material.
The decorative layer may be, for example, a colored layer covering the entire surface (so-called solid colored layer), a pattern layer having various patterns, or a combination thereof.

The pattern imparted by the decorative layer is not particularly limited, but examples thereof include wood patterns and stone patterns. By forming these patterns on the decorative layer, the texture based on the grooves and filling portions can be emphasized.

The decoration layer can be formed, for example, by applying and drying a decoration layer ink containing a coloring agent such as a pigment and a dye and a binder resin. Additives such as an extender pigment, an antioxidant, a plasticizer, a catalyst, a curing agent, an ultraviolet absorber and a light stabilizer can be mixed with the ink for the decorative layer, if necessary.
The coloring agent and the binder resin for the decoration layer are not particularly limited, and the same ones as those exemplified for the ink for filling portion described later can be used.

The thickness of the decoration layer is preferably 0.1 μm or more and 20 μm or less, more preferably 0.5 μm or more and 10 μm or less, and even more preferably 1.0 μm or more and 5.0 μm or less.

―Transparent resin layer―
The substrate layer may have a transparent resin layer to increase strength.
Examples of resins constituting the transparent resin layer include polyolefin resins, polyester resins, polycarbonate resins, acrylonitrile-butadiene-styrene copolymers (ABS resins), acrylic resins, and vinyl chloride resins. from the viewpoint of polyolefin resin is preferable. The transparent resin layer may be a mixture of these exemplified resins, or may be a laminate of layers composed of one or more of these exemplified resins.

Polyolefin resins for the transparent resin layer include polyethylene (low density, medium density, high density), polypropylene, polymethylpentene, polybutene, ethylene-propylene copolymer, propylene-butene copolymer, ethylene-vinyl acetate copolymer. polymers, ethylene-acrylic acid copolymers, ethylene-propylene-butene copolymers, and the like. Among these, polyethylene (low density, medium density, high density), polypropylene, ethylene-propylene copolymer and propylene-butene copolymer are preferred, and polypropylene is more preferred.

The transparent resin layer may contain additives such as ultraviolet absorbers, light stabilizers and colorants. When the transparent resin layer contains an ultraviolet absorber, the ultraviolet absorber is preferably a triazine-based compound, more preferably a hydroxyphenyltriazine-based compound.

The thickness of the transparent resin layer is preferably 20 μm or more and 150 μm or less, more preferably 40 μm or more and 120 μm or less, and even more preferably 60 μm or more and 100 μm or less, from the viewpoint of the balance between scratch resistance, workability and weather resistance.

- Adhesive layer -
The substrate layer may have an adhesive layer to improve interlayer adhesion.
The adhesive layer can be composed of, for example, a general-purpose adhesive such as a urethane-based adhesive, an acrylic adhesive, an epoxy-based adhesive, or a rubber-based adhesive. Among these adhesives, urethane-based adhesives are preferable in terms of adhesive strength.
Urethane-based adhesives include, for example, adhesives using two-liquid curing urethane resins containing various polyol compounds such as polyether polyols, polyester polyols and acrylic polyols, and curing agents such as isocyanate compounds.

The thickness of the adhesive layer is preferably 0.1 μm or more and 30 μm or less, more preferably 1 μm or more and 15 μm or less, and even more preferably 2 μm or more and 10 μm or less.

The shape of the surface of the substrate layer opposite to the surface protective layer is not particularly limited, and may be smooth or grooved.

<Filling part>
At least some of the grooves are required to have a filling portion containing a coloring agent inside the groove. By having the filling portion inside the groove, the texture of the decorative material can be enhanced.

Of the grooves, the ratio of grooves having filling portions is preferably 90% or more, more preferably 95% or more, based on the number of grooves.

A means for forming a filling portion containing a coloring agent in a groove is, for example, by applying ink for a filling portion containing a coloring agent, a binder resin, etc. to the surface of the substrate layer having the groove, and scraping off with a doctor blade or the like. means for scraping off the ink with a blade. At this time, the amount of coloring agent filled in the groove can be adjusted by adjusting the material of the blade, the angle at which the blade is applied, and the like. It is preferable that the material of the blade is soft so that the ink can be easily pushed into the groove. Similarly, the angle of the blade with respect to the substrate layer is preferably inclined in the advancing direction of the substrate layer so that the ink can be easily pushed into the grooves.

Colorants include inorganic pigments such as carbon black (ink), iron black, titanium white, antimony white, yellow lead, titanium yellow, red iron oxide, cadmium red, ultramarine, cobalt blue, quinacridone red, isoindolinone yellow, and phthalocyanine. Examples include organic pigments such as blue, and dyes.
The content of the colorant is preferably 1 part by mass or more and 90 parts by mass or less, more preferably 2 parts by mass or more and 50 parts by mass or less, relative to 100 parts by mass of the binder resin.

Although the color of the coloring agent is not particularly limited, dark coloring agents are preferred. Since a dark colorant can darken the groove, it is possible to increase the brightness contrast within the surface of the decorative material. The term “dark color” refers to dark colors such as dark gray, dark green, navy blue, black, dark purple, dark red, and brown, which are low in brightness and low in color.

Binder resins include acrylic resins, styrene resins, polyester resins, urethane resins, chlorinated polyolefin resins, vinyl chloride-vinyl acetate copolymers, polyvinyl butyral, alkyd resins, petroleum resins, ketone resins, epoxy resins, melamine resins, Fluororesins, silicone resins, rubber-based resins, and the like are included.

The filling portion may contain a matting agent in order to enhance texture. When the filled portion contains a matting agent, the difference between the grooves having the filled portion and the grooves not having the filled portion becomes more noticeable, and the texture tends to deteriorate. Since the decorative material of the present disclosure can increase the ratio of grooves having filling portions, it is possible to easily suppress the deterioration of the texture described above.

Matting agents include inorganic particles such as silica, calcium carbonate, titanium oxide and barium sulfate; organic particles such as acrylic beads and styrene beads. The average particle size of the matting agent is preferably 1 μm or more and 20 μm or less. In the present specification, the average particle size means the mass average value d50 in particle size distribution measurement by laser light diffraction method.
The content of the matting agent is preferably 1 part by mass or more and 30 parts by mass or less, more preferably 2 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the binder resin.

The filling portion preferably contains at least one of an ultraviolet absorber and a light stabilizer. Since the decorative material of the present disclosure can increase the ratio of grooves having a filling portion, the filling portion can easily improve the weather resistance of the decorative material by containing a weather resistance agent such as an ultraviolet absorber and a light stabilizer.

Examples of ultraviolet absorbents include inorganic ultraviolet absorbents and organic ultraviolet absorbents.
As the inorganic ultraviolet absorber, titanium oxide, cerium oxide, zinc oxide, etc. having an average particle size of 5 nm or more and 120 nm or less can be preferably used.
Examples of the organic UV absorber include benzotriazole compounds, triazine compounds, benzophenone compounds, etc. The content of the UV absorber is 1 part by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the binder resin. It is preferably 10 parts by mass or more and 40 parts by mass or less.
Light stabilizers include hindered amine light stabilizers. The content of the light stabilizer is preferably 1 part by mass or more and 50 parts by mass or less, more preferably 10 parts by mass or more and 40 parts by mass or less with respect to 100 parts by mass of the binder resin.

<Surface protective layer>
The decorative material has a surface protective layer.
The surface protective layer preferably contains a cured product of a curable resin composition in order to improve the scratch resistance of the decorative material.

The curable resin composition includes a thermosetting resin composition containing a thermosetting resin, an ionizing radiation-curable resin composition containing an ionizing radiation-curable resin, and mixtures thereof. Among them, an ionizing radiation-curable resin composition is preferred because it increases the crosslink density of the surface protective layer and improves surface properties such as scratch resistance. Among the ionizing radiation-curable resin compositions, the electron beam-curable resin composition is more preferable because it can be applied without a solvent and is easy to handle.

A thermosetting resin composition is a composition containing at least a thermosetting resin, and is a resin composition that is cured by heating. Thermosetting resins include acrylic resins, urethane resins, phenol resins, urea melamine resins, epoxy resins, unsaturated polyester resins, silicone resins, and the like. If necessary, a curing agent is added to these curable resins in the thermosetting resin composition.

The ionizing radiation-curable resin composition is a composition containing a compound having an ionizing radiation-curable functional group (hereinafter also referred to as an "ionizing radiation-curable compound"). The ionizing radiation-curable functional group is a group that is cross-linked and cured by irradiation with ionizing radiation, and preferably includes a functional group having an ethylenic double bond such as (meth)acryloyl group, vinyl group, and allyl group. In addition, in this specification, a (meth)acryloyl group shows an acryloyl group or a methacryloyl group. Moreover, in this specification, (meth)acrylate indicates acrylate or methacrylate.
In addition, ionizing radiation means, among electromagnetic waves or charged particle beams, those having energy quanta capable of polymerizing or cross-linking molecules, usually ultraviolet rays (UV) or electron beams (EB) are used. Electromagnetic waves such as X-rays and γ-rays, and charged particle beams such as α-rays and ion beams are also included.
Specifically, the ionizing radiation-curable compound can be appropriately selected and used from polymerizable monomers and polymerizable oligomers conventionally used as ionizing radiation-curable resins.

As the polymerizable monomer, a (meth)acrylate monomer having a radically polymerizable unsaturated group in the molecule is preferable, and a polyfunctional (meth)acrylate monomer is particularly preferable. Here, "(meth)acrylate" means "acrylate or methacrylate".
Polyfunctional (meth)acrylate monomers include (meth)acrylate monomers having two or more ionizing radiation-curable functional groups in the molecule and at least a (meth)acryloyl group as the functional group.

Polymerizable oligomers include, for example, (meth)acrylate oligomers having two or more ionizing radiation-curable functional groups in the molecule and at least (meth)acryloyl groups as the functional groups. Examples thereof include urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers, polyester (meth)acrylate oligomers, polyether (meth)acrylate oligomers, polycarbonate (meth)acrylate oligomers, and acrylic (meth)acrylate oligomers.
Furthermore, as polymerizable oligomers, there are also highly hydrophobic polybutadiene (meth)acrylate oligomers having (meth)acrylate groups in the side chains of polybutadiene oligomers, and silicone (meth)acrylate oligomers having polysiloxane bonds in the main chain. , Aminoplast resin modified aminoplast resin with many reactive groups in a small molecule (meth)acrylate oligomer, or novolak type epoxy resin, bisphenol type epoxy resin, aliphatic vinyl ether, aromatic vinyl ether, etc. There are oligomers having cationic polymerizable functional groups.

These polymerizable oligomers may be used alone or in combination. Urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers, polyester (meth)acrylate oligomers, polyether (meth)acrylate oligomers, and polycarbonate (meth)acrylates from the viewpoint of improving processability, scratch resistance, and weather resistance. At least one selected from oligomers and acrylic (meth)acrylate oligomers is preferable, at least one selected from urethane (meth)acrylate oligomers and polycarbonate (meth)acrylate oligomers is more preferable, and urethane (meth)acrylate oligomers are even more preferable. .

A monofunctional (meth)acrylate may be used in combination with the ionizing radiation-curable resin composition for the purpose of reducing the viscosity of the ionizing radiation-curable resin composition. These monofunctional (meth)acrylates may be used alone or in combination.

When the ionizing radiation-curable compound is an ultraviolet-curable compound, the ionizing radiation-curable resin composition preferably contains additives such as a photopolymerization initiator and a photopolymerization accelerator.
Examples of the photopolymerization initiator include one or more selected from acetophenone, benzophenone, α-hydroxyalkylphenone, Michler's ketone, benzoin, benzyldimethylketal, benzoylbenzoate, α-acyloxime ester, thioxanthones, and the like.
In addition, the photopolymerization accelerator can reduce polymerization inhibition by air during curing and increase the curing speed. One or more selected types can be mentioned.

The surface protective layer may contain additives such as ultraviolet absorbers, light stabilizers and colorants, if necessary.

The thickness of the surface protective layer is preferably 1.5 μm or more and 30 μm or less, more preferably 2 μm or more and 15 μm or less, and even more preferably 3 μm or more and 10 μm or less, from the viewpoint of the balance between processability, scratch resistance and weather resistance.

<Primer layer>
A primer layer may be provided between the substrate layer and the surface protective layer to improve adhesion.
The primer layer is mainly composed of a binder resin. The primer layer may contain additives such as ultraviolet absorbers and light stabilizers.

Binder resins for the primer layer include urethane resins, acrylic polyol resins, acrylic resins, ester resins, amide resins, butyral resins, styrene resins, urethane-acrylic copolymers, and polycarbonate-based urethane-acrylic copolymers ( Polyurethane-acrylic copolymer derived from a polymer having a carbonate bond and two or more hydroxyl groups at the terminal and side chain (polycarbonate polyol), vinyl chloride-vinyl acetate copolymer resin, vinyl chloride-vinyl acetate- Resins such as acrylic copolymer resins, chlorinated propylene resins, nitrocellulose resins (nitrocellulose), and cellulose acetate resins are preferred, and these can be used alone or in combination. The binder resin may be obtained by adding a curing agent such as an isocyanate-based curing agent or an epoxy-based curing agent to these resins, followed by cross-linking and curing. Among these, a polyol resin such as an acrylic polyol resin is preferably crosslinked and cured with an isocyanate curing agent, and more preferably an acrylic polyol resin is crosslinked and cured with an isocyanate curing agent.

The thickness of the primer layer is preferably 0.5 μm or more and 10 μm or less, more preferably 0.7 μm or more and 8 μm or less, and even more preferably 1 μm or more and 6 μm or less.

<Back primer layer>
The decorative material of the present disclosure may have a back primer layer on the opposite side of the base material layer to the surface protective layer in order to improve the adhesion between the decorative material and various adherends.
Materials used for forming the back primer layer are not particularly limited, and include urethane resins, acrylic resins, polyester resins, vinyl chloride/vinyl acetate copolymers, chlorinated polypropylene resins, chlorinated polyethylene resins, and the like.
The thickness of the back primer layer is preferably 0.5 μm or more and 5.0 μm or less, more preferably 1 μm or more and 3 μm or less.

The surface protective layer, the decorative layer, the primer layer, the adhesive layer and the back primer layer are coated with an ink containing a composition forming each layer by gravure printing, bar coating, roll coating, reverse roll coating, comma coating. It can be formed by coating with a known method such as the above, and drying and curing as necessary.
The transparent resin layer can be formed by hot melt extrusion, for example.

[Cosmetic material (second cosmetic material)]
The second cosmetic material included in the present disclosure is
A decorative material having a base material layer and a surface protective layer,
The decorative material has a rectangular shape in plan view having a longitudinal direction and a lateral direction,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Of the grooves, when the grooves extending in the longitudinal direction ±10 degrees are defined as longitudinal grooves,
At least 60% of the number-based grooves in the longitudinal direction satisfy the following formula 1B.
H≦−0.0425×W+86 μm (Formula 1B)
(In Formula 1B, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)

<Base material layer>
The substrate layer of the second decorative material is required to have a plurality of grooves on the surface on the surface protective layer side. At least some of the grooves are required to have a filling portion containing a coloring agent inside the groove. Of the grooves, when the grooves extending in the direction of ±10 degrees in the longitudinal direction are defined as longitudinal grooves, 60% or more of the number of longitudinal grooves satisfy the following formula 1B. requires.
H≦−0.0425×W+86 μm (Formula 1B)
(In Formula 1B, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)

In the second decorative material of the present disclosure, the substrate layer has a plurality of grooves, and the grooves satisfy the above formula 1B, so that the filling rate of ink in the grooves can be increased. The technical significance of Formula 1B will be described below.
In a decorative material having a rectangular plan view shape having longitudinal and lateral directions, it is preferable that the direction in which the groove extends is within a predetermined angle with respect to the longitudinal direction in order to emphasize the texture. On the other hand, for manufacturing process reasons, when ink containing a colorant is filled into the grooves of the above-described decorative material in plan view, the ink scraping direction may be perpendicular to the longitudinal direction.
As described in the first decorative material, among the grooves of the base material layer, the grooves extending substantially perpendicularly to the scraping direction are difficult to be filled with ink.
That is, in Equation 1B, when the ink scraping direction is perpendicular to the longitudinal direction, 60% or more of the grooves that are difficult to fill with ink exhibit a predetermined relationship between the depth and width of the groove. It stipulates that
The present inventor examined what kind of grooves that extend in the direction perpendicular to the longitudinal direction ±10 degrees are likely to be filled with ink during scraping. As a result, it was found that even if the grooves extend perpendicularly to the longitudinal direction ±10 degrees, the grooves that satisfy the formula 1B are likely to form the filled portions. The effect of satisfying Equation 1B can be illustrated in FIG. FIG. 3 is as described for the first decorative material.

The ratio of the grooves in the longitudinal direction satisfying formula 1B is preferably 70% or more, more preferably 80% or more, more preferably 90% or more, and 95% or more, based on the number of grooves. 1 is more preferred, and 100% is most preferred. By satisfying the ratio, it is possible to further increase the ratio of filling portions formed in the grooves in the longitudinal direction.

Note that when the ink scraping direction is perpendicular to the longitudinal direction, filling portions are likely to be formed in the grooves in the grooves other than the longitudinal direction, regardless of Formula 1B. Therefore, if all the grooves are formed in a direction other than the longitudinal direction, the filling rate problem will not occur. However, if all the grooves are grooves in a direction other than the longitudinal direction, the degree of design freedom is lacking, and furthermore, the absence of grooves in a specific direction causes a sense of discomfort, so it is difficult to obtain a decorative material with a high texture. Have difficulty.

<<Groove shape, etc.>>
The shape and the like of the grooves of the second decorative material are not particularly limited as long as Expression 1B is satisfied. The second veneer groove embodiments are similar to the first veneer groove embodiments unless otherwise noted.

Of all the grooves present in the base material layer, the ratio of the grooves extending in the range of ±40 degrees perpendicular to the longitudinal direction is preferably 80% or more on a number basis in order to further enhance the texture. , is more preferably 90% or more, still more preferably 97% or more, and most preferably 100%.
The fact that the direction of the grooves in the base material layer has the above ratio means that the direction in which the grooves extend is biased toward the longitudinal direction. In this way, the second decorative material of the present disclosure is preferable in that the texture can be easily improved even when the direction of the grooves is biased toward the longitudinal direction.

With respect to the longitudinal direction, the standard deviation σ of the directions of all the grooves present in the base material layer is preferably 1 degree or more and 20 degrees or less, more preferably 2 degrees or more and 15 degrees or less. , 3 degrees or more and 10 degrees or less. By setting the standard deviation .sigma.

Regarding the second decorative material of the present disclosure, embodiments of the groove formation method, the filling portion, the layer structure of the base layer, the surface protective layer, the decorative layer, the transparent resin layer, the primer layer, and the back primer layer are particularly mentioned. Unless otherwise specified, it is the same as the first cosmetic material embodiment.

[Cosmetic material (third cosmetic material)]
The third cosmetic material included in the present disclosure is
A decorative material having a base material layer and a surface protective layer,
The decorative material is roll-shaped,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Among the grooves, when the grooves extending in the direction of ±10 degrees in the width direction of the roll of the decorative material are defined as the grooves in the width direction,
At least 60% of the grooves in the width direction satisfy the following formula 1C.
H≦−0.0425×W+86 μm (Formula 1C)
(In formula 1C, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)

In the third decorative material of the present disclosure, the substrate layer has a plurality of grooves, and the grooves satisfy the above formula 1C, so that the filling rate of the ink in the grooves can be increased. The technical significance of Formula 1C will be described below.
A roll of decorative material may form an application with a decorative layer. The pattern of the roll-shaped decorative material is usually formed so that the pattern is connected in the length direction of the roll. The length direction of the roll is perpendicular to the width direction of the roll. Moreover, the length direction of the roll is the direction in which the roll is fed in the manufacturing process of the decorative material. For this reason, in the roll-shaped decorative material, it is preferable that the direction in which the grooves extend is within a predetermined angle with respect to the width direction of the roll-shaped material, in order to emphasize the texture by distinguishing it from the direction of the pattern. On the other hand, when the grooves of the roll-shaped decorative material are filled with ink containing a coloring agent, the ink scraping direction is perpendicular to the width direction of the roll for reasons of the manufacturing process.
As described in the first decorative material, among the grooves of the base material layer, the grooves extending substantially perpendicularly to the scraping direction are difficult to be filled with ink.
That is, Formula 1C defines that 60% or more of the grooves extending in the direction ±10 degrees perpendicular to the width direction, which are difficult to be filled with ink, exhibit a predetermined relationship between the groove depth and the groove width. there is
The present inventor examined what kind of grooves, which extend perpendicularly to the width direction at ±10 degrees, are likely to be filled with ink during scraping. As a result, the inventors have found that even if the groove extends perpendicularly to the width direction ±10 degrees, the filled portion is likely to be formed if the groove satisfies the formula 1C. The effect of satisfying Equation 1C can be illustrated in FIG. FIG. 3 is as described for the first decorative material.

The ratio of the grooves in the width direction satisfying formula 1C is preferably 70% or more, more preferably 80% or more, more preferably 90% or more, and 95% or more, based on the number of grooves. 1 is more preferred, and 100% is most preferred. By satisfying the ratio, it is possible to further increase the ratio of filling portions formed in the grooves in the width direction.

As for the grooves in the directions other than the width direction, filling portions are likely to be formed in the grooves regardless of Formula 1C. Therefore, if all the grooves are formed in a direction other than the width direction, the filling rate problem will not occur. However, if all the grooves are grooves in directions other than the width direction, the degree of design freedom is lacking, and furthermore, the absence of grooves in a specific direction causes a sense of discomfort, so it is difficult to obtain a decorative material with a high texture. Have difficulty.

<<Groove shape, etc.>>
The shape and the like of the grooves of the third decorative material are not particularly limited as long as Expression 1C is satisfied. The third veneer groove embodiments are similar to the first veneer groove embodiments unless otherwise noted.

Of all the grooves present in the base material layer, the ratio of the grooves extending in the range of ±40 degrees perpendicular to the width direction is preferably 80% or more on a number basis in order to further enhance the texture. , is more preferably 90% or more, still more preferably 97% or more, and most preferably 100%.
The fact that the direction of the grooves in the base material layer has the above ratio means that the direction in which the grooves extend is biased toward the width direction. In this way, the third decorative material of the present disclosure is preferable in that it is easy to improve the texture even when the direction of the grooves is biased toward the width direction.

With respect to the width direction, the standard deviation σ of the directions of all the grooves present in the base material layer is preferably 1 degree or more and 20 degrees or less, more preferably 2 degrees or more and 15 degrees or less. , 3 degrees or more and 10 degrees or less. By setting the standard deviation .sigma.

Regarding the third decorative material of the present disclosure, embodiments of the groove formation method, the filling portion, the layer structure of the base layer, the surface protective layer, the decorative layer, the transparent resin layer, the primer layer, and the back primer layer are particularly mentioned. Unless otherwise specified, it is the same as the first cosmetic material embodiment.

<Application of decorative material>
The decorative material of the present disclosure can be used for various purposes as it is or as a laminate laminated to an adherend.
Various uses include interior materials for buildings such as walls, ceilings, and floors; fittings such as window frames, doors, and handrails; furniture; housings for home appliances, OA equipment, and the like; be done.
Examples of the adherend include wood board; gypsum board; cement board; fiber cement board; ceramic board; iron plate, metal plate;

[Method for producing decorative material]
The manufacturing method of the decorative material of the present disclosure includes steps 1 to 4 below.
Step 1: A step of forming a plurality of grooves by shaping the base material layer with an embossing plate. In step 1, when grooves extending in a direction within a range of ±10 degrees perpendicular to the scraping direction in step 3 are defined as vertical grooves, the number of vertical grooves is based on the number of grooves in the vertical direction. At least 60% of the satisfy the following formula 1D.
H≦−0.0425×W+86 μm (Formula 1D)
(In Formula 1D, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)
Step 2: A step of applying ink for a filling portion containing a colorant to the surface of the substrate layer formed by the embossing plate.
Step 3: A step of scraping the ink for the filling portion in a predetermined direction to form a filling portion containing a colorant inside at least a part of the grooves.
Step 4: A step of forming a surface protective layer on the surface of the substrate layer formed by the embossing plate.

<Step 1>
Step 1 is a step of shaping the substrate layer with an embossing plate to form a plurality of grooves.
In step 1, the grooves are formed such that 60% or more of the number of grooves extending in a direction within a range of ±10 degrees perpendicular to the scraping direction in step 3 satisfy the formula 1D.

The width and depth of the grooves are generally governed by the shape of the embossing plate. For this reason, it is preferable that the embossing plate has an uneven shape such that the base layer that has been shaped satisfies the formula 1D. The embossed plate is preferably produced by engraving a metal roll with a laser beam in order to facilitate control of the uneven shape of the embossed plate.

The embossing conditions in step 1 are not particularly limited. Embodiments of embossing conditions include a temperature of 140° C. or higher and 180° C. or lower and a pressure of 10 kg/cm ² or higher and 50 kg/cm ² or lower.

<Step 2>
Step 2 is a step of applying ink for filling portions containing a colorant to the surface of the substrate layer formed by the embossing plate.
In step 2, some of the grooves are filled with ink.
The filling ink preferably contains a binder resin and a solvent in addition to the colorant.

<Step 3>
Step 3 is a step of scraping ink for the filling portion in a predetermined direction to form a filling portion containing a colorant inside at least a part of the grooves.
The scraping in step 3 removes excess ink and pushes ink into a part of the groove.

As a means for scraping ink, it is preferable to use a scraping blade such as a doctor blade.
The angle of the blade with respect to the substrate layer is preferably 3 to 45 degrees, more preferably 5 to 30 degrees, based on the vertical direction of the substrate layer. In addition, the case where the substrate layer is tilted in the traveling direction is indicated as plus, and the case where the substrate layer is inclined in the direction opposite to the traveling direction is indicated as minus.
The material of the blade includes metal, rubber, resin, etc. Among these, metal is preferable.
The pressure with which the blade is applied to the substrate layer can be appropriately adjusted within a range in which streaks and unevenness of the ink do not occur.

In step 3, it is preferable to dispose a roll having a circular cross section on the side opposite to the side where the scraping blade of the substrate layer is located. Materials for the roll include metal, rubber, resin, and the like.

During step 3, or after step 3 is completed and before step 4 is started, it is preferable to include a step of curing the binder resin of the ink for the filling portion.

<Step 4>
Step 4 is a step of forming a surface protective layer on the side of the substrate layer formed by the embossing plate.
The surface protective layer is formed, for example, by applying an ink containing components constituting the surface protective layer by a general-purpose coating means to form a coating film, and drying and curing the coating film as necessary. can do.

When a primer layer is provided between the substrate layer and the surface protective layer, it is preferable to form the primer layer between steps 3 and 4.

10: Base material layer 11: Transparent resin layer 12: Adhesive layer 13: Decorative layer 14: Colored base material 21: Groove 22: Filling part 30: Primer layer 40: Surface protective layer 100: Decorative material

Claims (7)

A decorative material having a base material layer and a surface protective layer,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Among the grooves, when grooves extending in a direction within a range of ±10 degrees perpendicular to a predetermined direction are defined as vertical grooves,
A decorative material in which 60% or more of the grooves in the vertical direction, based on the number, satisfy the following formula 1A.
H≦−0.0425×W+86 μm (Formula 1A)
(In formula 1A, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".) The decorative material according to claim 1, wherein the filling portion contains a matting agent. The cosmetic material according to claim 1 or 2, wherein the filling portion contains at least one of an ultraviolet absorber and a light stabilizer. The decorative material according to any one of claims 1 to 3, comprising a primer layer between the base material layer and the surface protective layer. A decorative material having a base material layer and a surface protective layer,
The decorative material has a rectangular shape in plan view having a longitudinal direction and a lateral direction,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Of the grooves, when the grooves extending in the longitudinal direction ±10 degrees are defined as longitudinal grooves,
A decorative material in which 60% or more of the grooves in the longitudinal direction, based on the number, satisfy the following formula 1B.
H≦−0.0425×W+86 μm (Formula 1B)
(In Formula 1B, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".) A decorative material having a base material layer and a surface protective layer,
The decorative material is roll-shaped,
The base layer has a plurality of grooves on the surface on the surface protective layer side,
at least some of the grooves have a filling portion containing a coloring agent inside the groove;
Among the grooves, when the grooves extending in the direction of ±10 degrees in the width direction of the roll of the decorative material are defined as the grooves in the width direction,
A decorative material in which 60% or more of the number-based grooves in the width direction satisfy the following formula 1C.
H≦−0.0425×W+86 μm (Formula 1C)
(In formula 1C, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".) A method for producing a decorative material, comprising steps 1 to 4 below.
Step 1: A step of forming a plurality of grooves by shaping the base material layer with an embossing plate. In step 1, when grooves extending in a direction within a range of ±10 degrees perpendicular to the scraping direction in step 3 are defined as vertical grooves, the number of vertical grooves is based on the number of grooves in the vertical direction. At least 60% of the satisfy the following formula 1D.
H≦−0.0425×W+86 μm (Formula 1D)
(In Formula 1D, "H" indicates the depth of the groove, and "W" indicates the width of the groove. The unit of "H" and "W" is "μm".)
Step 2: A step of applying ink for a filling portion containing a colorant to the surface of the substrate layer formed by the embossing plate.
Step 3: A step of scraping the ink for the filling portion in a predetermined direction to form a filling portion containing a colorant inside at least a part of the grooves.
Step 4: A step of forming a surface protective layer on the surface of the substrate layer formed by the embossing plate.

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