JP7383222B2 - Decorative paper, decorative material, and method for producing decorative paper - Google Patents

Description

The present invention relates to a decorative paper, a decorative material, and a method for manufacturing decorative paper.

BACKGROUND ART Conventionally, decorative materials used for the interior and exterior of buildings, fittings, furniture, and the like are usually provided with a desired pattern, such as a wood grain pattern. In addition to simply expressing wood grain patterns in a two-dimensional manner, decorative materials are also used that express surface irregularities such as conduits of natural wood in a three-dimensional manner.
As a method of expressing a three-dimensional unevenness on the surface of decorative materials along with a planar wood grain pattern, for example, instead of actually forming the desired uneven shape on the surface of decorative materials, it is expressed as concavities and convexities. There is also a method that uses the illusion of the human eye to visually express the three-dimensional effect of unevenness by varying the surface gloss of the desired area. In other words, a three-dimensional effect is expressed by recognizing a relatively high-gloss portion as a convex portion and a relatively low-gloss portion as a concave portion (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2000-43223

In the method of creating a three-dimensional effect by providing unevenness, it is necessary to provide two layers of resins with different glosses, and the low-gloss resin contains silica as a matting agent. Therefore, in the low-gloss design portion, a whitening phenomenon occurs due to total reflection of the silica, and a decrease in scratch resistance occurs due to loss of silica due to rubbing or the like.
Therefore, it is an object of the present invention to provide a decorative paper, a decorative material, and a method for producing decorative paper that can express a three-dimensional effect without causing the whitening phenomenon of a low-gloss design or reducing scratch resistance. The purpose is

In order to achieve the above object, the decorative paper according to one aspect of the present invention includes a base paper layer, a picture pattern layer laminated on one side of the base paper layer and containing an uneven pattern, and a picture pattern layer laminated directly on the picture pattern layer. , a top coat layer having transparency that allows the picture pattern layer to be seen through when viewed from above , the top coat layer containing an ultraviolet curable resin or an electron beam curable resin, and containing a resin in the recesses of the uneven pattern. Convex portions are selectively arranged correspondingly, and concave portions are selectively arranged corresponding to the convex portions of the uneven pattern, and overlap with the uneven pattern of the picture pattern layer of the top coat layer when viewed from above. The area is characterized in that recesses or protrusions are selectively arranged in correspondence with the recesses or protrusions of the uneven pattern.

Further, a decorative material according to another aspect of the present invention is characterized by comprising the decorative paper of the above aspect and a base material laminated on the other surface of the base paper layer.

Furthermore, a method for producing decorative paper according to another aspect of the present invention provides a method for producing decorative paper comprising a base paper layer, a picture pattern layer having an uneven pattern formed on one surface of the base paper layer, and a top coat layer. In the manufacturing method, the top coat layer has transparency that allows the picture pattern layer to be seen through when viewed from above, and an ultraviolet curable resin or an electron beam that becomes the top coat layer is placed on the picture pattern layer. After applying a curable resin, a step of drying with heat to form a resin layer having tack-free properties; selectively embossing depressions or protrusions in the overlapping region corresponding to the depressions or protrusions of the uneven pattern; irradiating the resin layer with corresponding ultraviolet rays or electron beams, and the embossing plate has a maximum height difference between concave portions and convex portions of the embossing plate that is predicted to be of the decorative paper after manufacturing. It is characterized by being 3% or more and 200% or less of the total thickness.

According to the present invention, it is possible to create a three-dimensional effect without causing a whitening phenomenon in a low-gloss design or reducing scratch resistance.

FIG. 1 is a cross-sectional view showing an example of a decorative material according to an embodiment of the present invention.

Next, embodiments of the present invention will be described with reference to the drawings.
Here, the drawings are schematic, and the relationship between the thickness and the planar dimension, the ratio of the thickness of each layer, etc. are different from the actual one. In addition, the embodiments shown below illustrate configurations for embodying the technical idea of the present invention, and the technical idea of the present invention is that the materials, shapes, structures, etc. of the component parts are It is not something specific. The technical idea of the present invention can be modified in various ways within the technical scope defined by the claims.

[Composition of decorative paper]
As shown in the cross-sectional view of FIG. 1, the decorative paper 1 includes a base paper layer 3, a pattern layer 4, and a top coat layer 5, which are laminated in this order. The picture pattern layer 4 also includes a base pattern layer 4a formed on the entire surface of the base paper layer 3, and a pattern printing layer 4b formed on the surface of the base pattern layer 4a on the opposite side to the base paper layer 3. include. The pattern printing layer 4b is selectively formed in a preset concave or convex forming area (hereinafter also referred to as an uneven forming area) 4A on the base pattern layer 4a, and is formed on the base pattern layer 4a and the pattern printing layer 4b. The pattern is formed by this.

In this decorative paper 1, a decorative material base material 11 is bonded to the surface of the base paper layer 3 opposite to the picture pattern layer 4 using, for example, an adhesive to form the decorative material 10.
The decorative paper 1 according to an embodiment of the present invention expresses gloss and shine by providing the top coat layer 5 with an uneven shape corresponding to the unevenness of the picture pattern layer 4. , the decorative paper 1 is designed to give a sense of unevenness.
The base paper layer 3 is formed of thin paper having a basis weight of 20 g/m ² or more and 100 g/m ² . As the thin paper, for example, glassine paper, parchment paper, medicine paper, etc. can be used.

The constituent material of the picture pattern layer 4 is not particularly limited, but generally it is a printing ink made by dissolving or dispersing a coloring agent such as a dye or a pigment in a suitable solvent together with a suitable binder resin. Or a coating material is used.
Examples of coloring agents include inorganic pigments such as carbon black, titanium white, zinc white, Bengara, yellow lead, navy blue, and cadmium red, azo pigments, lake pigments, anthraquinone pigments, phthalocyanine pigments, isoindolinone pigments, and dioxazine pigments. or a mixture of two or more of these organic pigments can be used.

Examples of binder resins include acrylic resins, styrene resins, polyester resins, urethane resins, polyvinyl resins, alkyd resins, petroleum resins, ketone resins, epoxy resins, melamine resins, and fluorine resins. Various synthetic resins such as resins, silicone resins, cellulose resins, and rubber resins, or mixtures and copolymers thereof can be used.
Further, as the solvent, for example, toluene, xylene, cyclohexane, ethyl acetate, butyl acetate, methyl alcohol, ethyl alcohol, isopropyl alcohol, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, water, etc., or a mixture thereof, etc. may be used. Can be done.
In addition, various additives such as extender pigments, plasticizers, dispersants, surfactants, tackifiers, adhesion aids, drying agents, curing agents, curing accelerators, or curing retarders may be used as appropriate. Ru.

The picture pattern layer 4 needs to include at least a pattern printing layer 4b in a region corresponding to the unevenness forming region 4A. On the other hand, although the base pattern layer 4a is not essential, it can be visually perceived as a color pattern independent of the color pattern in the area where the pattern print layer 4b is formed, in a portion of the decorative paper 1 excluding the area where the pattern print layer 4b is formed. It can be provided for the purpose of giving a design that is For example, in the case of a wood grain pattern, as is well known, it is common to print by separating into a solid base, a wood grain pattern, a conduit pattern, etc. Of these, the solid base and wood grain pattern are printed in the decorative paper 1 of the present invention. is provided as a base pattern layer 4a, and the conduit pattern is provided as a pattern printing layer 4b. In the present invention, the picture pattern layer 4 is not limited to a wood grain pattern, but can also be suitably applied to a stone grain pattern, an abstract pattern, etc.

In addition, in FIG. 1, the pattern printing layer 4b is described as being provided on the surface of the base pattern layer 4a, but this does not necessarily define a vertical relationship between the two, and both are on the same surface. It may be provided as a continuous pattern on top, the vertical relationship may be reversed, or a transparent layer (which may be a transparent base material) etc. may be interposed between the two. .
Further, all or part of the pattern printing layer 4b may be integrated with the base paper layer 3 by mixing or permeating a coloring agent into the base paper layer 3. In short, it is sufficient that the pattern printing layer 4b formed in the unevenness forming area 4A and the base pattern layer 4a are configured so as to be color-distinguishable when observed from the surface side of the decorative paper 1.

The most common method for forming the pattern layer 4 is an appropriate printing method such as a gravure printing method, an offset printing method, a screen printing method, an electrostatic printing method, an inkjet printing method, etc., but it is not limited thereto. For example, the solid base layer described above may be formed by a coating method such as a roll coating method, a knife coating method, or a die coating method, and other patterns may be formed by any conventionally known image forming method.

The top coat layer 5 is formed from an ultraviolet curable resin or an electron beam curable resin that has tack-free properties only by heat drying and has excellent after-cure properties. Further, the top coat layer 5 has transparency that allows at least the pattern layer 4 to be seen through.
The top coat layer 5 is formed on the entire surface of the pattern layer 4 on the side opposite to the base paper layer 3, and the top coat layer 5 is formed by embossing in the area corresponding to the unevenness forming area 4A when viewed from above. , a convex shape or a concave shape is selectively provided. Specifically, in a region of the top coat layer 5 corresponding to the unevenness forming region 4A, when viewed from above, a concave shape is formed in the region where the pattern printing layer 4b is formed, and the pattern printing layer 4b is not formed. A convex shape is formed in the area where there is no surface.

Here, the embossing plate for performing the embossing molding is used to form the concave shape of the top coat layer 5 in the concavo-convex formation region 4A, and the maximum height difference between the convex portion and the concave portion (hereinafter referred to as , also simply referred to as the maximum height difference) is set to be in the range of 3% or more and 200% or less of the total thickness (hereinafter also simply referred to as total thickness) of the decorative paper 1 finally formed. If the maximum height difference is less than 3%, the unevenness formed on the top coat layer 5 by embossing is too shallow and no design is achieved. When the maximum height difference is greater than 200%, the laminate of the base paper layer 3, the pattern layer 4, and the resin layer made of ultraviolet curable resin or electron beam curable resin, which becomes the top coat layer 5, breaks during embossing molding. do.
In FIG. 1, the side surfaces of the concave and convex shapes of the top coat layer 5 are changed in stages, but the shape is not limited to this and may be changed continuously.

By changing the side surfaces of the concave and convex shapes of the top coat layer 5 in stages, the layer thickness and surface roughness of the top coat layer 5 can be selectively adjusted, and the surface gloss value and texture can be adjusted. It is possible to give gradation expression to reproduce the more natural texture of wood and stone grain.
Furthermore, the shape of the convex portions or concave portions of the top coat layer 5 does not need to be placed exactly opposite the concave portions or convex portions of the pattern printing layer 4b, and may be slightly shifted. By actively shifting both, the apparent unevenness can be adjusted as appropriate. Further, by changing the direction and distance of the deviation between the two contours depending on the position within the unevenness forming area 4A, the apparent unevenness can be changed depending on the position within the unevenness forming area 4A.

Various materials can be used for the base material 11 depending on the intended use. Specifically, for example, paper such as tissue paper, titanium paper, resin-impregnated paper, flame retardant paper, and inorganic paper, woven or nonwoven fabric made of natural fibers or synthetic fibers, polyolefin resin, polyester resin, and acrylic Synthetic resin base materials such as resin, styrene resin, polyamide resin, cellulose resin, polycarbonate resin, polyvinyl chloride resin, polyvinylidene chloride resin, fluorine resin, wood veneer, veneer, plywood, laminated wood, Wood base materials such as particle board and medium density fiberboard; inorganic base materials such as gypsum board, cement board, calcium silicate board, and ceramic board; metal base materials such as iron, copper, aluminum, and stainless steel; or Any conventionally known material can be used, such as a composite or a laminate, and the shape thereof is not limited at all, such as a film or sheet, a plate, or a irregularly molded body.

[Method for manufacturing decorative paper]
Next, an example of a method for manufacturing the decorative paper 1 will be briefly described.
First, as the base paper layer 3, thin paper with a basis weight of 20 g/m ² or more and 100 g/m ² is prepared, and a base pattern layer is formed on one surface of the thin paper by gravure printing using printing ink for gravure printing, for example. 4a, and further, a pattern printing layer 4b is selectively printed in an area corresponding to the unevenness forming area 4A. At this time, each printing layer is dried every time the printing ink is replaced.

Further, on the base pattern layer 4a and the pattern printing layer 4b, a one-component ultraviolet curable resin that becomes the top coat layer 5 and has tack-free properties only by heat drying is coated, and then heat drying is performed. , and dry thoroughly. Furthermore, embossing is performed using an embossing plate such as an embossing plate having a shape that matches the pattern printing layer 4b. At this time, embossing is performed using an embossing plate in which the maximum height difference between the convex portion and the concave portion of the embossing plate is 3% or more and 200% or less of the predicted total thickness of the decorative paper 1 after manufacture. Subsequently, the ultraviolet curable resin is sufficiently dried and cured by ultraviolet irradiation. This forms the top coat layer 5. Through the above steps, decorative paper 1 is formed.

In the decorative paper 1 formed in this way, the top coat layer 5 has an uneven shape that matches the pattern printing layer 4b. Therefore, it was confirmed that the fine uneven structure causes a difference in the gloss level of the surface visible to the human eye, and as a result, it is possible to express an uneven feeling that is in tune with the pattern printed layer 4b. It was confirmed that this made it possible to obtain decorative paper 1 with excellent design. Furthermore, it was confirmed that the decorative paper 1 could be produced with good workability without problems such as plate clogging during printing, blocking or sagging due to insufficient drying.
In addition, when producing the decorative material 10, the decorative paper 1 produced by the above procedure may be bonded to the base material 11 with an adhesive.

〔effect〕
(1) In the decorative paper 1 in the above embodiment, the top coat layer 5 is selectively provided with a convex shape or a concave shape by embossing molding, corresponding to the concavo-convex shape of the picture pattern layer 4. Therefore, the shape of the convex portions or the shape of the concave portions formed in the top coat layer 5 and the shape of the concave and convex portions of the picture pattern layer 4 are in sync with each other, and it is possible to express a feeling of concavities and convexities.
At this time, the top coat layer 5 is formed from an ultraviolet curable resin or an electron beam curable resin without containing silica. Therefore, it is not necessary to use silica as a matting agent as in the case where two layers of resins with different glosses are provided. As a result, an uneven texture can be expressed without causing a whitening phenomenon and without deteriorating scratch resistance.

Further, as the top coat layer 5, an ultraviolet curable resin or an electron beam curable resin is used which has tack-free properties due to heat drying. Therefore, after the embossing step, the top coat layer 5 can be cured by irradiating it with ultraviolet rays or electron beams. In other words, during the embossing process, the resin layer made of ultraviolet curable resin or electron beam curable resin is not irradiated with ultraviolet rays or electron beams, so it is not cured, and tack-free properties can be achieved by heat drying. It is manifesting. Therefore, the uneven shape of the embossing plate can be accurately transferred to the resin layer. After the embossing step, the resin layer is irradiated with ultraviolet rays or electron beams depending on the type of the resin layer to be cured, so that the resin layer can be more firmly adhered to the picture pattern layer 4.
In addition, the top coat layer 5 is formed by applying an ultraviolet curable resin or an electron beam curable resin that has tack-free properties by heat drying, heat-drying the applied resin, and semi-curing the coated resin to develop tack-free properties by heat drying. It can be manufactured by performing an embossing process on the resin in a heated state and curing it by irradiating it with ultraviolet rays or electron beams, so it can be manufactured in-line.

(2) Also, when forming the uneven shape on the top coat layer 5, an embossing plate is used to form a mark, and at this time, the maximum height difference between the convex portions and the concave portions of the embossing plate is 3% or more and 200% or less of the predicted total thickness of No. 1. Therefore, the concave or convex shape formed in the top coat layer 5 and the concavo-convex shape of the pattern printing layer 4b are in sync with each other, giving a visual sense of concavo-convexity to a person. In addition, since the height of the convex portions and the depth of the concave portions of the embossing plate are limited, in the embossing process, the base paper layer 3, the pattern layer 4, the ultraviolet curable resin or the electron beam curable resin When forming an uneven shape using an embossing plate on a laminate with a resin layer made of can do.

(3) Furthermore, the decorative paper 1 in the above embodiment uses thin paper as the base paper layer 3. Thin paper has excellent thermal dimensional stability when drying, and is excellent in positional registration in gravure printing and the like. Therefore, by using thin paper as the base paper layer 3, positioning during embossing can be easily performed. Further, at this time, as the base paper layer 3, thin paper having a basis weight of 20 g/m ² or more and 100 g/m ² or less is used. Therefore, printed matter with excellent design can be obtained in gravure printing or the like without tearing the thin paper. If the basis weight of the thin paper as the base paper layer 3 is smaller than 20 g/m ² , the paper will break during printing. On the other hand, if the basis weight of the thin paper used as the base paper layer 3 is greater than 100 g/m ² , pressure may be released when pressed against a gravure cylinder using an impression roll, resulting in poor printing.

The above-described embodiment is an example of the present invention, and the present invention is not limited to the above-described embodiment, and even forms other than this embodiment may incorporate the technical idea of the present invention. Various changes can be made according to the design, etc., as long as they do not deviate from the range.

〔Example〕
[Example 1]
Decorative paper 1 in Example 1 was created using the following procedure.
First, on the surface of thin paper with a basis weight of 30 g/m ² , a nitrified cotton-based gravure printing ink was used to create a colored solid layer of one color, which served as both base coloring and concealment, and a three-colored wood grain layer excluding the conduit pattern. A pattern layer and a conduit pattern layer of one color that is in tune with this wood grain pattern layer are sequentially printed, and then a one-component ultraviolet curable resin that exhibits tack-free properties only by heat drying is applied after drying. It was coated in an amount of 6 g/m ² and then embossed using an embossing plate with a wood grain texture that matched the conduit pattern layer. The maximum height difference between the convex portions and the concave portions of the embossing plate was set to 20% of the expected total thickness of the decorative paper 1 after manufacture.

Finally, decorative paper 1 was obtained by irradiating ultraviolet rays with a metal halide lamp to harden the ultraviolet curable resin layer.
In addition, when printing each layer and printing the ultraviolet curable resin, a gravure 7-color printing machine for decorative sheet production was used, and the printing speed was 100 m/min. The drying conditions were 100°C for each color. In addition, after printing all colors and applying UV-curable resin, the top coat is dried at two temperature settings in the order of 120°C and 180°C in the after-drying zone, which is divided into two zones of 5 m each. The agent was thoroughly dried.
The dried top coat agent was embossed with an embossing plate, and finally irradiated with ultraviolet rays, rolled up and stored.

In addition, as the ultraviolet curable resin forming the top coat layer 5, UV198 manufactured by DIC Corporation was used. The main components of UV198 are tack-free UV curable resin (polymer with MW (weight average molecular weight) = about 25,000), UV curable resin, photopolymerization initiator, photopolymerization initiator, silicone filler, and matting agent. be. When the MW is, for example, about 25,000, it is possible to maintain a dispersed state as a resin and have tack-free properties only by heat drying. For example, in the case of a multimeric UV curable resin with a MW of about 12,000, heat drying alone will not provide tack-free properties, and resin will come off during printing, resin will come off during embossing, etc. Productivity decreases significantly.

In the decorative paper 1 obtained as described above, the outline of the conduit pattern and the shape of the convex portions formed on the top coat layer 5 opposite to the outline are in sync with each other, and the irregularities of the conduit grooves are similar to those of natural conduits. The result is a decorative material with an excellent design. In addition, production was possible with good workability without problems such as plate clogging during printing, blocking or peeling due to insufficient drying.

[Example 2]
It was produced under the same conditions as in Example 1, except that the maximum height difference between the convex portion and the concave portion was embossed using an embossing plate having a maximum height difference of 3% of the expected total thickness of the decorative paper 1 after manufacture.
[Example 3]
It was prepared under the same conditions as in Example 1, except that the maximum height difference between the convex portions and the concave portions was embossed using an embossing plate with a maximum height difference of 200% of the expected total thickness of the decorative paper 1 after manufacture.

[Comparative example 1]
It was produced under the same conditions as in Example 1, except that the maximum height difference between the convex portions and the concave portions was embossed using an embossing plate with a maximum height difference of 2% of the expected total thickness of the decorative paper 1 after manufacture.
[Comparative example 2]
It was produced under the same conditions as in Example 1, except that the maximum height difference between the convex portion and the concave portion was embossed using an embossing plate with a maximum height difference of 210% of the expected total thickness of the decorative paper 1 after manufacture.
[Comparative example 3]
Using the method described in Patent Document 1, a decorative paper expressing the same design feeling as in Example 1 was produced by separately coating a high-gloss resin and a low-gloss resin.

The surface gloss of each of the decorative papers of Examples 1 to 3 and Comparative Examples 1 to 2 was measured with a 60 degree gloss meter (IG-320 manufactured by HORIBA), and the gloss value was 2.
The evaluation items for these samples are as follows.

<Design feeling>
The decorative paper produced in Examples 1 to 3 and Comparative Examples 1 to 3 was evaluated for design by sensory evaluation.
The evaluation was performed by 10 examiners.
The evaluation criteria is "x" if 0 people gave it a good rating, "△" if 1 to 6 people gave it a good rating, "○" if 7 to 9 people gave it a good rating, and "" if 10 people gave it a good rating. ◎"

<Scratch resistance>
A test was conducted in accordance with "Resistance to scratching" described in German Industrial Standard DIN EN 438-2, page 44, and scratch resistance was evaluated according to the evaluation criteria.

<Evaluation results>
The evaluation results for the decorative paper of the example and the decorative paper of the comparative example are shown in Table 1.
In Table 1, Comparative Example 2 could not be evaluated because the decorative paper was broken during production.
From Table 1, if the maximum height difference between the convex part and the concave part is within the range of 3% or more and 200% of the expected total thickness of the decorative paper 1 after manufacture, the design is good and the scratch resistance is good. For "Rating 3", when the maximum height difference was 2% or 210%, no one judged that the design was good, or the sample could not be evaluated due to breakage. Furthermore, when two conventional resins with different glosses were used, the design was good, but the scratch resistance was Rating 1.

As described above, the decorative paper 1 according to an embodiment of the present invention includes the base paper layer 3, the pattern layer 4 having an uneven pattern formed on one surface of the base paper layer 3, and the top coat layer 5. First, a step of applying an ultraviolet curable resin or an electron beam curable resin that exhibits tack-free properties by heat drying on the picture pattern layer 4, and then forming a resin layer by heat drying, and an embossing plate. a step of embossing concave portions or convex portions corresponding to the concave portions or convex portions of the concavo-convex pattern in a region of the resin layer that overlaps with the concave-convex pattern of the picture pattern layer when viewed from above; A step of irradiating the resin layer with ultraviolet rays or electron beams corresponding to the ultraviolet curable resin or electron beam curable resin, and the embossing plate has a maximum height difference between the concave part and the convex part of the embossing plate. The thickness was set to be 3% or more and 200% or less of the predicted total thickness of the decorative paper 1 after manufacture. Therefore, it is possible to realize decorative paper 1 with excellent design and scratch resistance.

1 Decorative paper 2 Base material 3 Base paper layer 4 Picture pattern layer 4a Base pattern layer 4b Pattern printing layer 4A Concave or convex formation area 5 Top coat layer 11 Base material

Claims (4)

A base paper layer,
a picture pattern layer laminated on one side of the base paper layer and including an uneven pattern;
a top coat layer that is directly laminated on the picture pattern layer and has a transparency that allows the picture pattern layer to be seen through when viewed from above ;
The top coat layer includes an ultraviolet curable resin or an electron beam curable resin, and has convex portions selectively arranged corresponding to the concave portions of the concavo-convex pattern, and concave portions corresponding to the convex portions of the concavo-convex pattern. selectively placed,
When viewed from above, recesses or protrusions are selectively arranged in regions of the top coat layer that overlap with the recesses or recesses of the picture pattern layer, corresponding to recesses or protrusions of the recesses or recesses of the recesses or protrusions of the pattern. Featured decorative paper. The decorative paper according to claim 1, wherein the base paper layer includes thin paper having a basis weight of 20 g/ ^m2 or more and 100 g/m2 ^or less. The decorative paper according to claim 1 or claim 2 ,
A decorative material comprising: a base material laminated on the other side of the base paper layer. A method for producing decorative paper comprising a base paper layer, a picture pattern layer having an uneven pattern formed on one side of the base paper layer, and a top coat layer, the method comprising:
The top coat layer has transparency that allows the pattern layer to be seen through when viewed from above,
A step of applying an ultraviolet curable resin or an electron beam curable resin to become the top coat layer on the picture pattern layer, and then drying with heat to form a resin layer having tack-free properties;
Using an embossing plate, selectively form concave portions or convex portions in a region of the resin layer that overlaps with the concavo-convex pattern of the picture pattern layer in a top view, corresponding to the concave portions or convex portions of the concavo-convex pattern. Embossing process and
irradiating the resin layer with ultraviolet rays or electron beams corresponding to the ultraviolet curable resin or the electron beam curable resin contained in the resin layer;
Equipped with
The embossing plate is a decorative paper characterized in that the maximum height difference between the concave portion and the convex portion of the embossing plate is 3% or more and 200% or less of the expected total thickness of the decorative paper after production. Production method.

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