Method for manufacturing cosmetic paper

Abstract

To provide a method for manufacturing decorative paper that is used in a surface material for applications of furniture and fitting, which can easily exhibit a design of an embossment plate.SOLUTION: A method for manufacturing decorative paper includes the steps of: forming a pattern layer 40 having an uneven patter on one surface of a base paper layer 30; forming a top coat layer 50 on the surface of the pattern layer 40; and performing embossment toward the pattern layer 40 from the surface of the top coat layer 50 using an embossment plate, wherein in the embossment step, a surface temperature of the top coat layer 50 is 50°C or higher and a printing pressure of the embossment plate is 6 kgf / cm2 or more. The base paper layer 30 may include thin paper having a basis weight of 20 g / m2 or more and 100 g / m2 or less, the top coat layer 50 may contain an ultraviolet curable resin or an electron beam curable resin, and in the top coat layer 50, a recess or a projection may be selectively arranged corresponding to the recess or the projection of the uneven pattern in a region overlapping the uneven layer of the pattern layer 40 in top view.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention is used, for example, as a surface material for furniture and fixtures, and relates to a method for manufacturing decorative paper that makes it easy to express the design of an engraved plate. In the law

Background Art

[0002] Conventionally, for decorative materials used for interior and exterior finishes of buildings, fixtures, furniture, etc., it is common practice to apply a desired pattern such as a wood grain pattern. In addition to simply expressing a wood grain pattern or the like in a planar manner, decorative materials that also three-dimensionally express the surface irregularities such as conduits of natural wood are also used. As a method for expressing a three-dimensional uneven feeling on the surface of a decorative material in combination with a planar wood grain pattern, for example, instead of actually forming the uneven shape to be expressed on the surface of the decorative material, the gloss state of the surface of the portion to be expressed as a concave portion and a convex portion is made different, and there is also a method of visually expressing the three-dimensional feeling of unevenness by utilizing the illusion of the human eye. That is, a relatively glossy portion is recognized as a convex portion, and a less glossy portion is recognized as a concave portion to express a three-dimensional feeling (see, for example, Patent Document 1). In addition, a transfer foil for in-mold molding using an ultraviolet curable resin excellent in after-cure properties is known (see, for example, paragraph

[0009] and FIG. 1 of Patent Document 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] ​In the method of creating a three-dimensional effect by providing unevenness, it is necessary to provide two layers of resins with different gloss levels. The low-gloss resin contains silica as a matting agent. Therefore, in the low-gloss design part, a whitening phenomenon due to total reflection of silica occurs, and also a decrease in scratch resistance due to the loss of silica caused by rubbing or the like occurs. In addition, in conventional decorative materials, the expression of the design on the engraved plate may become weak. Therefore, an object of the present invention is to facilitate the expression of the design by defining the surface temperature of the top coat layer and the range of the printing pressure of the engraved plate during embossing.

Means for Solving the Problems

[0005] A method for manufacturing decorative paper according to an aspect of the present invention includes a step of forming a pattern layer having an uneven pattern on one surface of a base paper layer, a step of forming a top coat layer on the surface of the pattern layer, and a step of embossing using an engraved plate from the surface of the top coat layer toward the pattern layer. In the embossing step, the surface temperature of the top coat layer is set to 50°C or higher, and the printing pressure of the engraved plate is set to 6 kgf / cm 2 or higher.

[0006] Moreover, a method for manufacturing decorative paper according to an aspect of the present invention is characterized in that the base paper layer includes thin paper having a basis weight of 20 g / m 2 or more and 100 g / m 2 or less. A method for manufacturing decorative paper according to an aspect of the present invention is characterized in that the top coat layer contains an ultraviolet curable resin or an electron beam curable resin. A method for manufacturing decorative paper according to an aspect of the present invention is characterized in that in the top coat layer, in a region where the uneven pattern of the pattern layer overlaps in a top view, recesses or protrusions are selectively arranged corresponding to the recesses or protrusions of the uneven pattern. A method for manufacturing decorative paper according to an aspect of the present invention is characterized in that the engraved plate has a maximum height difference between the convex part and the concave part of 3% to 200% of the predicted total thickness of the decorative paper after manufacturing.

[0007] The decorative paper according to one aspect of the present invention includes a base paper layer, a pattern layer laminated on one surface of the base paper layer and including a concavo-convex pattern, and a top coat layer laminated on the pattern layer, wherein the surface temperature of the top coat layer during embossing molding is 50°C or higher, and the embossing pressure of the embossing plate during embossing molding is 6 kgf / cm 2 or higher. The decorative material according to one aspect of the present invention is characterized by including the decorative paper and a base material laminated on the other surface of the base paper layer.

Effect of the Invention

[0008] According to the present invention, it is possible to easily express the design of the embossing plate.

Brief Description of the Drawings

[0009]

Figure 1

Mode for Carrying Out the Invention

[0010] (Embodiment) An embodiment 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 dimensions, the ratio of the thickness of each layer, etc. are different from the actual ones. Further, the embodiments shown below are examples of the configurations for embodying the technical idea of the present invention, and the technical idea of the present invention is not limited to the materials, shapes, structures, etc. of the components being the following. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.

[0011] (Decorative Paper 10) In FIG. 1, reference numeral 10 denotes a decorative paper, and the decorative paper 10 is used, for example, as a surface material for furniture and fixtures. As shown in the cross-sectional view of FIG. 1, the decorative paper 10 has (1) a base paper layer 30, (2) a pattern layer 40, and (3) a top coat layer 50 laminated in this order. Note that (1) to (3) above will be described later. (Cosmetic material 20) On the surface of the base paper layer 30 of the decorative paper 10, which is opposite to the pattern layer 40, a base material 21 for the cosmetic material can be bonded, for example, with an adhesive to obtain the cosmetic material 20. Note that the base material 21 will be described later. (Base paper layer 30) The base paper layer 30 serves as a support for the decorative paper 10 and has a basis weight of 20 g / m 2 to 100 g / m 2 or less and includes the following thin papers. As the basis weight, for example, 50 g / m 2 is applied. As the thin paper, for example, glassine paper, parchment paper, medicine wrapping paper, etc. can be applied.

[0012] (Pattern layer 40) The pattern layer 40 is printed on one surface of the base paper layer 30, for example, on the surface of the thin paper, and includes a concavo-convex pattern. The pattern layer 40 is roughly composed of (1) a base pattern layer 41 printed on the surface of the thin paper and (2) a pattern printing layer 42 printed on the surface of the base pattern layer 41. As the base pattern layer 41, on the surface of the thin paper, for example, using nitrocellulose-based gravure printing ink, it is composed of a single-color colored solid layer that combines base coloring and imparting concealment. As the pattern printing layer 42, on the surface of the colored solid layer, for example, a three-color wood grain layer excluding the conduit pattern and a single-color conduit pattern layer synchronized with the wood grain layer are sequentially printed and formed. Here, the "concavo-convex pattern" is composed of the wood grain layer and the conduit pattern layer.

[0013] (Constituent materials of the pattern layer 40) The constituent materials of the pattern layer 40 are not particularly limited, but generally, a printing ink or coating material obtained by dissolving or dispersing a colorant such as a dye or pigment together with a suitable binder resin in a suitable solvent is used. Examples of coloring agents include inorganic pigments such as carbon black, titanium white, zinc white, lead white, yellow lead, ultramarine blue, cadmium red, etc., organic pigments such as azo pigments, lake pigments, anthraquinone pigments, phthalocyanine pigments, isoindolinone pigments, dioxazine pigments, etc., or mixtures of two or more of these can be used.

[0014] (Binder resin) Examples of binder resins include various synthetic resins such as acrylic resins, styrene resins, polyester resins, urethane resins, polyvinyl resins, alkyd resins, petroleum resins, ketone resins, epoxy resins, melamine resins, fluorine resins, silicone resins, cellulose resins, rubber resins, etc., or mixtures, copolymers, etc. of these can be used.

[0015] Examples of solvents include toluene, xylene, cyclohexane, ethyl acetate, butyl acetate, methyl alcohol, ethyl alcohol, isopropyl alcohol, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, water, etc., or mixtures of these can be used. In addition, various additives such as extender pigments, plasticizers, dispersants, surfactants, tackifiers, adhesion aids, desiccants, curing agents, curing accelerators, or curing retardants, etc. are appropriately used as necessary.

[0016] The pattern layer 40 needs to include at least a pattern printing layer 42 in a region corresponding to the concave or convex portion forming region 60. On the other hand, the base pattern layer 41 is not essential, but it can be provided for the purpose of imparting a design that is visually perceived as a color pattern independent of the color pattern in the region where the pattern printing layer 42 of the decorative paper 1 is formed, in the portion excluding the region where the pattern printing layer 42 is formed. For example, in the case of a wood grain pattern, as is well known, it is usually printed in separate plates for a solid base, wood grain pattern, vessel pattern, etc. Among these, the solid base and wood grain pattern are provided as the base pattern layer 41 in the decorative paper 1 of the present invention, and the vessel pattern is provided as the pattern printing layer 42.

[0017] In the present invention, the pattern layer 40 is not limited to a wood grain pattern, and can also be appropriately applied to a stone pattern, an abstract pattern, etc. In addition, in FIG. 1, the pattern printing layer 42 is described as being provided on the surface of the base pattern layer 41, but this does not necessarily define the vertical relationship between the two. The two may be provided as a continuous pattern on the same plane, the vertical relationship may be reversed, or a transparent layer (which may be a transparent base material) or the like may be interposed between the two. Also, all or part of the pattern printing layer 42 may be integrated with the base paper layer 3 by mixing or infiltrating a colorant into the base paper layer 3. In short, when observed from the surface side of the decorative paper 1, the pattern printing layer 42 and the base pattern layer 41 formed in the concave or convex portion forming region 60 may be configured to be colorimetrically distinguishable.

[0018] (Method for forming the pattern layer 40) The method for forming the pattern layer 40 is most commonly by 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. Note that the forming method is not limited to this. For example, the above-described solid base may be formed by a coating method such as a roll coating method, a knife coating method, a die coating method, etc. Other patterns can also be formed by any conventionally known image forming method.

[0019] (Top coat layer 50) The top coat layer 50 is laminated on the surface of the pattern layer 40, that is, the surface of the pattern printing layer 42, and has at least transparency that allows the pattern layer 40 to be seen through. The top coat layer 50 contains an ultraviolet curable resin or an electron beam curable resin. As the ultraviolet curable resin or the electron beam curable resin, for example, a one-component curable ultraviolet curable resin having tack-free properties only by heat drying is applied at a coating amount of 10 g / m 2 after drying. The top coat layer 50 is formed on the entire surface of the back side of the base paper layer 30 of the pattern layer 40.

[0020] (Concave or convex portion forming region 60) In the region of the top coat layer 50 corresponding to the concave or convex portion forming region 60 in a top view, a convex portion shape or a concave portion shape is selectively provided by embossing. Specifically, in the region of the top coat layer 50 corresponding to the concave or convex portion forming region 60, in a top view, a concave portion shape is formed in the region where the pattern printing layer 42 is formed, and a convex portion shape is formed in the region where the pattern printing layer 42 is not formed. By providing the uneven shape on the top coat layer 50 according to the "uneven pattern" of the pattern layer 40, the glossiness and the shiny feeling are expressed, and by this glossiness and shiny feeling, the uneven feeling is expressed in the decorative paper 10.

[0021] (Embossing) Embossing is performed using an embossing plate, for example, an engraving plate. At the time of embossing, the surface temperature of the top coat layer 50 is set to 50°C or higher, and the printing pressure of the embossing plate at the time of embossing is 6 kgf / cm 2 or higher. Specifically, the surface temperature is preferably 50°C or higher and 130°C or lower. Also, the printing pressure is 6 kgf / cm 2 or higher and 23 kgf / cm 2 or lower is preferable. If the surface temperature of the top coat layer 50 is lower than 50°C, the design of the embossing plate is difficult to appear, and the design feeling is inferior. Also, if the printing pressure of the embossing plate is weaker than 6 kgf / cm 2 , similarly, the design of the embossing plate is difficult to appear, and the design feeling is inferior.

[0022] (Embossing plate) In the embossing process, the maximum height difference between the convex and concave portions (hereinafter also simply referred to as the "maximum height difference") for forming the concave and convex shapes in the concave or convex portion forming region 60 of the top coat layer 5 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 the "total thickness") of the finally formed decorative paper 1. When the maximum height difference is less than 3%, the unevenness formed on the top coat layer 5 by the embossing is too shallow, and the design cannot be expressed. When the maximum height difference is greater than 200%, there is a risk that the laminate of the base paper layer 3, the pattern layer 40, and the resin layer made of an ultraviolet curable resin or an electron beam curable resin that becomes the top coat layer 50 may break during the embossing process. In FIG. 1, the side surfaces of the concave and convex shapes of the top coat layer 5 are changed stepwise, but it is not limited thereto, and they may be changed continuously.

[0023] By changing the side surfaces of the concave and convex shapes of the top coat layer 05 stepwise, the layer thickness and surface roughness of the top coat layer 50 can be selectively adjusted, giving a gradation expression to the surface gloss value and the feel, and reproducing a more natural wood grain or stone grain texture. Also, the convex or concave shape of the top coat layer 50 does not need to be arranged exactly opposite to the concave or convex portion of the pattern printing layer 42, and they may be slightly offset. By actively offsetting the two, the apparent unevenness can also be adjusted as appropriate. Also, by changing the direction and distance of the deviation of the contours of the two according to the position within the concave or convex portion forming region 60, a change depending on the position within the concave or convex portion forming region 60 can be given to the apparent unevenness.

[0024] (Base material 21) The base material 21 can use various materials according to the intended use. Specifically, for example, papers such as tissue paper, titanium paper, resin-impregnated paper, flame-retardant paper, inorganic paper, etc., woven or non-woven fabrics made of natural or synthetic fibers, polyolefin resins, polyester resins, acrylic resins, styrene resins, polyamide resins, cellulose resins, polycarbonate resins, polyvinyl chloride resins, polyvinylidene chloride resins, fluorine-based resins, etc. synthetic resin-based substrates, wood veneers, plywood, laminated wood, particle boards, medium-density fiberboards, etc. wood-based substrates, gypsum boards, cement boards, calcium silicate boards, ceramic boards, etc. inorganic-based substrates, metal-based substrates such as iron, copper, aluminum, stainless steel, etc., or composites, laminates, etc. of them, any conventionally known material can be used, and its shape is also not restricted at all, for example, film-like or sheet-like, plate-like, shaped molded bodies, etc.

[0025] (Method for manufacturing decorative paper 10) Next, an example of the method for manufacturing decorative paper 10 will be described below. First, it is a step of forming a pattern layer 40 having a concavo-convex pattern on one surface of the base paper layer 30. Specifically, for example, on the surface of the tissue paper with a basis weight of 50 g / m 2 contained in the base paper layer 30, using nitrocellulose-based gravure printing ink, a single-color solid-colored layer that combines base coloring and imparting concealability, a three-color wood grain layer excluding the conduit pattern, and a single-color conduit pattern layer synchronized with the wood grain layer are sequentially printed to obtain a pattern layer 40 laminated on one surface of the base paper layer 30.

[0026] Second, it is a step of forming a top coat layer 50 on the surface of the pattern layer 40. Specifically, for example, a one-component curable ultraviolet-curable resin having tack-free properties only by heat drying is applied at a coating amount of 10 g / m 2 after drying to obtain a top coat layer 50 laminated on the surface of the pattern layer 40. Third, using a mold pressing plate on the surface of the top coat layer 50, in a top view, in a region overlapping the concavo-convex pattern of the pattern layer 40, corresponding to the concave or convex portion of the concavo-convex pattern, a step of selectively mold pressing the concave or convex portion is included.

[0027] Specifically, for example, with an embossing plate having a wood grain texture synchronized with the conduit handle layer, where the maximum height difference between the convex and concave portions is 200% of the total sheet thickness, the printing pressure is 6 kgf / cm 2 , perform molding under the condition that the surface temperature of the top coat layer 50 is 50°C, and finally perform ultraviolet irradiation with a metal halide lamp to cure it to obtain the decorative paper 10.

[0028] In addition, during the above printing, a gravure 7-color printing machine for manufacturing decorative sheets is used, the printing speed is 50 m / min, the drying conditions are 100°C for each color, and after full-color printing and coating, the top coat agent is sufficiently dried by a two-stage temperature setting of 120°C and 180°C in two divided after-drying zones of 5 m each in order, then perform molding with an embossing plate, and finally perform ultraviolet irradiation. Also, when manufacturing the decorative material 20, the decorative paper 10 produced by the above procedure may be bonded to the base material 21 with an adhesive.

[0029] (The first characteristic point of the embodiment) The first characteristic point of the method for manufacturing the decorative paper 10 according to the embodiment includes a step of forming a pattern layer 40 having a concavo-convex pattern on one surface of the base paper layer 30, a step of forming a top coat layer 50 on the surface of the pattern layer 40, and a step of performing molding using a molding plate from the surface of the top coat layer 50 toward the pattern layer 40. In the molding step, the surface temperature of the top coat layer 50 is set to 50°C or higher, and the printing pressure of the molding plate is 6 kgf / cm 2 or higher.

[0030] (Effect of the first characteristic point) According to the first characteristic point, it is easy to express the design of the molding plate. If the surface temperature of the top coat layer 50 is lower than 50°C, it is difficult to express the design of the molding plate, and the design feeling is inferior. Also, if the printing pressure of the molding plate is lower than 6 kgf / cm 2 , similarly, it is difficult to express the design of the molding plate, and the design feeling is inferior.

[0031] (The second characteristic point of the embodiment) The second feature of the method for manufacturing the cosmetic paper 10 according to the embodiment is that the base paper layer 30 contains thin paper with a basis weight of 20 g / m 2 or more and 100 g / m 2 or less. (Effect of the second feature) According to the second feature, the thin paper is excellent in thermal dimensional stability during drying and excellent in registration in gravure printing or the like. Therefore, by using thin paper as the base paper layer 30, alignment during molding can be easily performed. Also, at this time, as the base paper layer 30, thin paper with a basis weight of 20 g / m 2 or more and 100 g / m 2 or less is used. Therefore, an excellent printed matter in terms of design can be obtained in gravure printing or the like without the thin paper being broken. If the basis weight of the thin paper as the base paper layer 30 is less than 20 g / m 2 , the paper may break during printing. Conversely, if the basis weight of the thin paper as the base paper layer 30 is greater than 100 g / m 2 , when pressing against the gravure cylinder using an impression roll, pressure may escape, resulting in poor printing quality.

[0032] (Third feature of the embodiment) The third feature of the method for manufacturing the cosmetic paper 10 according to the embodiment is that the top coat layer 50 contains an ultraviolet curable resin or an electron beam curable resin. (Effect of the third feature) According to the third feature, after the molding process, the top coat layer 50 can be cured by irradiating with ultraviolet rays or electron beams. That is, during the molding process, since the resin layer made of the ultraviolet curable resin or the electron beam curable resin is not irradiated with ultraviolet rays or electron beams, it is not cured, and tack - free property is exhibited by performing heat drying. Therefore, the concavo-convex shape of the engraved plate can be accurately transferred to the resin layer. Then, since ultraviolet rays or electron beams corresponding to the type of the resin layer are irradiated onto the resin layer after the embossing process to cure it, the resin layer can be firmly adhered to the pattern layer 40. In addition, the top coat layer 50 is formed by applying an ultraviolet curable resin or an electron beam curable resin having tack-free property by heat drying, heat-drying the applied resin, expressing the tack-free property by heat drying to semi-cure the resin, performing an embossing process on the semi-cured resin, and irradiating ultraviolet rays or electron beams to cure it. Therefore, it can be produced inline.

[0033] (Fourth feature of the embodiment) The fourth feature of the method for manufacturing the decorative paper 10 according to the embodiment is that in the top coat layer 50, in a region where the concavo-convex pattern of the pattern layer 40 overlaps in a top view, recesses or protrusions are selectively arranged corresponding to the recesses or protrusions of the concavo-convex pattern. (Effect of the fourth feature) According to the fourth feature, the convex or concave shape formed in the top coat layer 50 is synchronized with the concavo-convex shape of the pattern layer 40, and a concavo-convex feeling can be expressed.

[0034] (Fifth feature of the embodiment) The fifth feature of the method for manufacturing the decorative paper 10 according to the embodiment is that the maximum height difference between the convex and concave portions of the embossing plate is 3% to 200% of the predicted total thickness of the decorative paper 10 after manufacturing. (Effect of the fifth feature) According to the fifth feature, the concave or convex shape formed in the top coat layer 50 is synchronized with the concavo-convex shape of the pattern printing layer 42, and a visual concavo-convex feeling can be given to people. In addition, since the height of the convex portion and the depth of the concave portion of the embossing plate are limited, when forming a concavo-convex shape on the laminate of the base paper layer 30, the pattern layer 40, and the resin layer made of an ultraviolet curable resin or an electron beam curable resin using the embossing plate in the embossing process, it is possible to avoid breakage of the laminate and the like, and appropriately form a concavo-convex shape on the top coat layer 50.

[0035] (Sixth Feature Point of the Embodiment) The sixth feature point of the cosmetic paper 10 according to the embodiment includes a base paper layer 30, a pattern layer 40 laminated on one surface of the base paper layer 30 and including a concavo-convex pattern, and a top coat layer 50 laminated on the pattern layer 40. The surface temperature of the top coat layer 50 during embossing molding is 50°C or higher, and the embossing pressure of the embossing plate during embossing molding is 6 kgf / cm 2 or higher. (Sixth Effect of the Embodiment) According to the sixth feature point, it is possible to provide the cosmetic paper 10 in which the design of the embossing plate is likely to appear. If the surface temperature of the top coat layer 50 is lower than 50°C, the design of the embossing plate is difficult to appear, and the design feeling is inferior. Also, if the embossing pressure of the embossing plate is lower than 6 kgf / cm 2 similarly, the design of the embossing plate is difficult to appear, and the design feeling is inferior.

[0036] (Seventh Feature Point of the Embodiment) The seventh feature point of the cosmetic material 20 according to the embodiment includes the cosmetic paper 10 and a base material 21 laminated on the other surface of the base paper layer 30. (Seventh Effect of the Embodiment) According to the seventh feature point, it is possible to provide the cosmetic material 20 in which the design of the embossing plate is likely to appear.

Example

[0037] Hereinafter, Examples 1 to 3, Comparative Example 1, and Comparative Example 2 of the cosmetic sheet according to the present invention will be described. Note that the present invention is not limited to the following Examples 1 to 3. (Example 1) In Example 1, first, on the surface of the tissue paper having a basis weight of 50 g / m included in the base paper layer 30, using nitrocellulose-based gravure printing ink, a single-color colored solid layer having both base coloring and concealment property, a three-color wood grain layer excluding the conduit pattern, and a single-color conduit pattern layer synchronized with the wood grain layer were sequentially printed to obtain a pattern layer 40 laminated on one surface of the base paper layer 30. 2

[0038] Second, a one-component curable ultraviolet-curable resin having tack-free property only by heat drying was applied at a coating amount after drying of 10 g / m 2 to obtain a top coat layer 50 laminated on the surface of the pattern layer 40. Third, using an embossing plate with a wood grain texture synchronized with the conduit pattern, with a maximum height difference between the convex and concave portions of 200% of the total sheet thickness, at a printing pressure of 6 kgf / cm 2 while the surface temperature of the top coat layer 50 was 50°C, embossing was performed, and finally, ultraviolet irradiation was performed with a metal halide lamp for curing, thereby obtaining the decorative paper 10 of Example 1.

[0039] In the above printing, a gravure 7-color printing machine for manufacturing decorative sheets was used, the printing speed was 50 m / min, the drying conditions were 100°C for each color, and after full-color printing and coating, the top coat agent was sufficiently dried by a two-stage temperature setting of 120°C and 180°C in two after-drying zones divided into 5 m each in order. Then, embossing was performed with an embossing plate, and finally, ultraviolet irradiation was performed, and it was wound up and stored. The decorative paper 10 obtained as described above had an uneven feeling of conduit grooves approximated to natural conduits due to the gradation of the gloss state of the contour portion of the conduit pattern, and became a decorative paper 10 with excellent design. Moreover, problems such as plate clogging during printing, blocking and trailing due to poor drying did not occur, and it could be manufactured with good workability.

[0040] (Example 2) Example 2 was the same as Example 1 except that the surface temperature of the top coat layer 50 during embossing was 100°C, and the decorative paper 10 of Example 2 was obtained. (Example 3) Example 3 was the same as Example 1 except that the surface temperature of the top coat layer 50 during embossing was 100°C and the printing pressure of the embossing plate during embossing was 7 kgf / cm 2 and the decorative paper 10 of Example 3 was obtained.

[0041] (Comparative Example 1) In Comparative Example 1, the surface temperature of the top coat layer 50 during hot stamping was 30°C, and the printing pressure of the embossing plate during hot stamping was 23 kgf / cm 2 Other than this, it was the same as in Example 1, and the decorative paper 10 of Comparative Example 1 was obtained. (Comparative Example 2) In Comparative Example 2, the surface temperature of the top coat layer 50 during hot stamping was 30°C, and the printing pressure of the embossing plate during hot stamping was 2 kgf / cm 2 Other than this, it was the same as in Example 1, and the decorative paper 10 of Comparative Example 2 was obtained.

[0042] (Evaluation Method and Criteria) The decorative paper 10 described in the examples and comparative examples was evaluated for the sense of design by sensory evaluation. The sense of design was evaluated by a sensory test. The evaluation was conducted by 10 testers. The evaluation criteria were as follows: when the number of people who rated it as good was "0", it was marked as "×"; when it was "1 - 6 people", it was marked as "△"; when it was "7 - 9 people", it was marked as "○"; when it was "10 people", it was marked as "◎". "○" and "◎" were regarded as "qualified", and "△" and "×" were regarded as "unqualified". ( (Evaluation Results) The results are as shown in Table 1 below.

[0043]

Table 1

[0044] (Examples 1 - 3, Comparative Examples 1 and 2) Among Examples 1 - 3, Comparative Examples 1 and 2, in Examples 1 - 3, the "sense of design" was all "qualified". In contrast, in Comparative Examples 1 and 2, the "sense of design" was all "unqualified". 。

[0045] (Comparative Example 1) In Comparative Example 1, the surface temperature was 30°C, and it can be speculated that the reason was the low surface temperature. The "△" of the "sense of design" in Comparative Example 1 means that the degree of "gloss change" was weak. On the other hand, for those with a "◎" in the "design sense", that is, those that "pass", the "luster change" is distinct and the design is clearly expressed. Compared with those of Examples 1 to 3, the one in Comparative Example 1 has a weaker "luster change" and the design is less visible, so the "design sense" is marked as "△". Therefore, it can be inferred that for those of Examples 1 to 3, a distinct design sense was obtained by setting the surface temperature to 50°C or higher. (Comparative Example 2) In Comparative Example 2, the surface temperature is 30°C, which can be presumed to be due to the low surface temperature.

Explanation of Reference Numerals

[0046] 10 Facial tissue 20 Cosmetic material 21 Base material 30 Base paper layer 40 Pattern layer 41 Underlying pattern layer 42 Pattern printing layer 50 Top coat layer 60 Concave or convex portion forming region

Claims

1. A step of forming a pattern layer having a concavo-convex pattern on one surface of a base paper layer; A step of forming a top coat layer on the surface of the pattern layer; A step of embossing from the surface of the top coat layer toward the pattern layer using an embossing plate, and includes: In the step of hot stamping, the surface temperature of the topcoat layer is set to 50°C or higher and 130°C or lower, and the printing pressure of the hot stamping plate is set to 6 kgf / cm ２ or higher. The top coat layer contains an ultraviolet curable resin or an electron beam curable resin; Between the step of forming the top coat layer and the step of embossing using the embossing plate, the method further includes a step of drying the top coat layer; A method for manufacturing decorative paper, characterized in that the ultraviolet curable resin constituting the top coat layer after being heat-dried in the step of drying the top coat layer has tack-free property only by the heat drying.

2. The base paper layer is thin paper with a basis weight of 20 g / m ２ or more and 100 g / m ２ or less. The method for manufacturing the cosmetic paper according to claim 1 is characterized by including this.

3. In the top coat layer, in a plan view, in a region where the concavo-convex pattern of the pattern layer overlaps, a concave portion or a convex portion is selectively arranged corresponding to the concave portion or the convex portion of the concavo-convex pattern. The method for manufacturing decorative paper according to claim 1 or claim 2.

4. The embossing plate is characterized in that the maximum height difference between the convex portion and the concave portion is 3% to 200% of the predicted total thickness of the decorative paper after manufacturing. The method for manufacturing decorative paper according to any one of claims 1 to 3.

5. In the step of drying the top coat layer, the drying temperature of the top coat layer is set to a temperature higher than the surface temperature of the top coat layer in the step of embossing using the embossing plate. The method for manufacturing decorative paper according to any one of claims 1 to 4.

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