JPH0839748A - Uniform embossed decorative paper and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a uniform embossed decorative paper and a method for manufacturing it wherein registering of a recess to be formed on a first setting resin layer to a vessel pattern is unnecessary and the recess characterized by having a sharp pattern is uniformed with the vessel pattern. CONSTITUTION:A decorative paper is formed by providing a foaming vessel pattern layer 13 on one face of a paper base material sheet 11 having a pattern layer 12 printed thereon, a first setting resin layer 14 thereon, and a recess H on the surface of the first setting resin layer 14. The recess H is uniformed with and conformed to the vessel pattern layer 13 as a lower pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative paper used for doors, doors, fixtures and the like, and more specifically, a tuned embossed decorative paper in which a recess formed in a surface layer is in tune with a lower conduit pattern layer and its production. Regarding the method.

[0002]

2. Description of the Related Art Conventionally, there is known a decorative paper in which a concave portion and a pattern layer are aligned with each other (a concave sheet formed in a surface layer has a register matching a conduit pattern formed in a lower layer). Although this decorative paper is not shown, the top coat layer of the surface layer has few uneven patterns actually formed by embossing or the like, and the difference between the glossiness of the surface layer and the glossiness of the lower pattern layer is not shown. By using it, you can visually check the unevenness effect,
Most of them are decorative papers that express design effects such as three-dimensional effect. However, with this method, the three-dimensional effect is poorly expressed, and of course, there is no unevenness that can be felt by touching. On the other hand, as shown in FIG. 3, it is difficult to emboss onto the base paper in order to actually create a three-dimensional effect by forming an uneven pattern with an embossing plate having an uneven pattern. It was necessary to make the thickness of the layer (34) sufficient so that the difference between the concave portion (H) and the convex portion (T) due to embossing was 10 μm or more.

[0003]

However, according to this method, it is not possible to express the shape of the convex portion sharply, and the tuning of the conduit handle (33) and the concave portion (H) (matching the register). It is difficult to make the uneven pattern rough and the conduit pattern (3
Although it is roughly aligned with 3), or although not shown, it is a decorative paper that creates a three-dimensional effect by forming a fine uneven pattern on the entire surface, but due to insufficient synchronization, the three-dimensional effect etc. There was a problem with the design.

Therefore, the present invention has been made in view of the above problems and is characterized in that the concave portion formed in the first curable resin layer does not require registration with the conduit pattern and has a sharp uneven pattern. An object of the present invention is to provide a tuned embossed decorative paper in which the recesses and the conduit pattern are tuned, and a method for manufacturing the same.

[0005]

In order to achieve the above object, first of all, according to the first invention, a foamable conduit is provided on one side of a paper base sheet (11) on which a pattern layer (12) is printed. A handle layer (13) and a first curable resin layer (14) are provided on the entire surface thereof, and a recess (H) is provided on the surface of the first curable resin layer (14). A decorative paper having a second curable resin layer (15) provided on the first curable resin layer (14) to be removed, the conduit pattern layer (1) having the recess (H) as a lower handle.
It is a tuned embossed decorative paper characterized by being tuned to 3).

According to the second invention, the handle layer (12)
A conduit pattern layer (13) is printed in a desired pattern using a printing ink in which a capsule foaming agent is dispersed on a paper substrate sheet (11) on which the first curable resin layer is printed. (14) is applied and heated to heat the first curable resin layer (1
4) is cured and the capsule foaming agent in the conduit handle layer (13) is foamed, and then the foamed body (A) is subjected to a dissolution treatment to form recesses on the surface of the first curable resin layer (14). (H) is formed, and the second curable resin layer (15) is provided on the first curable resin layer (14) excluding the recess (H). (H) is in tune with the conduit handle layer (13) of the lower handle, which is a method for producing a tuned embossed decorative paper.

The present invention will be described in detail with reference to the drawings. Figure 2
FIG. 3 is an explanatory view showing a method for producing a synchronous embossed decorative paper of the present invention. As shown in FIG. 2 (a), a pattern layer (12) such as a wood grain pattern in which 2 to 3 colors are mixed is gravure-printed on one surface of a paper base sheet (11) made of thin paper or the like, and a conduit is provided thereon. The pattern layer (13) and the first curable resin layer (14) as a surface layer are applied and formed. The conduit pattern layer (13) is screen-printed with a printing ink in which 5 to 15 parts by weight of a capsule foaming agent having a particle size distribution of 3 to 15 μm (for example, manufactured by Matsumoto Yushi Co., Ltd.) is dispersed. method,
Or, print by the gravure printing method. At this time, the conduit pattern layer (13) is printed with a conduit pattern or the like in a pattern under the first curable resin layer (14). Moreover, as the first curable resin layer (14), a thermosetting resin is used and is applied by roll coating, gravure coating, or knife coating.

After applying the first curable resin layer (14), the capsule foaming agent in the conduit handle layer (13) foams,
In addition, by passing the first curable resin layer (14) through a drying oven set to a temperature atmosphere in which the first curable resin layer (14) is cured, as shown in FIG. The capsule foaming agent of the conduit handle layer (13) foams (actually the capsule expands), and the foam (A) is exposed on the first curable resin layer (14). Further, the curing of the first curable resin layer (14) proceeds in a drying oven, a foam (A) is formed on the upper part of the conduit pattern layer (13), and the cured first curable layer is formed in other portions. A resin layer (14) is formed.

After passing through the drying oven, the capsule wall film agent of the capsule foaming agent (for example, resin such as vinylidene chloride, acrylonitrile, methyl methacrylate) is soluble, but the first curable resin layer (14). 2) when the resin is dissolved in an insoluble solvent, the capsule foam (A) is dissolved, as shown in FIG. 2 (c), and the recesses are aligned (matched) with the conduit handle layer (13) left in the lower handle. (H) can be formed.
Further, the first curable resin layer (1
4) By applying the second curable resin layer (15) on the
Gloss and matte gloss differences between the second curable resin layer (15) and the conduit pattern layer (13) develop. It should be noted that the provision of the second curable resin layer (15) is not limited, and only the first curable resin layer (14) may be provided.

[0010]

According to the present invention, a conduit pattern layer (13) and a first curable resin layer (14) are formed thereon by using a printing ink in which a capsule foaming agent is dispersed, and the capsule foaming agent is heated while heating. And the first curable resin layer (14)
Is cured and the exposed foam (A) is foamed on the first curable resin layer (14) to be dissolved, whereby a recess is formed on the first curable resin layer (14). (H) pattern is formed, and the first curable resin layer (1
4) A second curable resin layer (15) is provided on top. This method does not require any special registration process or the like, and is synchronized with (conforms to) the conduit handle layer (13) formed as a lower handle.
The recessed portion can be easily formed. In addition, the conduit pattern layer (13) has a low glossiness, and the other parts have a high glossiness, and a further three-dimensional effect is exhibited in combination with the concave (H) pattern.

[0011]

Embodiments of the present invention will be described below.

As shown in FIG. 2A, the paper base sheet (1
As 1), a pattern layer (12) such as wood grain is printed on one surface of a mixed paper having a basis weight of about 30 g / m ² by using two colors of nitrification cotton ink. On this, a conduit pattern layer (13) is printed with a printing ink in which 8 parts by weight of a capsule foaming agent having a particle size distribution of 5 to 10 μm is dispersed. Further, an acrylic urethane resin was applied on the entire surface as a first curable resin layer (14).
Coating is performed with a ² g / m ² roll coater. This first
The thickness of the curable resin layer (14) is about 10 μm.

Next, the above-mentioned sheet is passed through an IR heater drying oven set at 350 ° C., so that the capsule foaming agent foams (expands to 30 to 70 times at 90 ° C. or more) for the first curing. The acrylic urethane resin forming the resin layer (14) is cured. At this time, the printing ink of the conduit pattern layer (13) other than the capsule foaming agent remains as a conduit pattern (see FIG. 2 (b)). Further, a decorative paper in which the expanded capsule foam (A) is exposed on the first curable resin layer (14) is obtained.

When the foam (A) on the first curable resin layer (14) is subjected to a dissolution treatment with a solvent in a separate step of the above decorative paper, the foam (A) is dissolved and the first A recess (H) can be formed on the curable resin layer (14) (FIG. 2).
(See (c)). This recess (H) is formed in the upper portion of the lower handle layer (13), and therefore, the lower handle layer (1).
A decorative paper that matches 3) can be obtained.

In order to obtain a more three-dimensional effect,
The first curable resin layer (1 except for the formed recess (H))
4) the second curable resin layer (1
As 5), it is advisable to apply a thin layer of acrylic urethane resin or the like again. In this case, since the recess has a sufficiently deep shape, even if the recess is applied, the second curable resin layer (1
5) does not enter, so that the uneven pattern shape can be maintained.

[0016]

Since the present invention has the above-mentioned constitution, it has the following effects. That is, a conduit pattern layer is formed using a printing ink in which a capsule foaming agent is dispersed, and a first curable resin layer is formed thereon, and the capsule foaming agent in the conduit pattern layer is foamed by heating, The recesses can be formed by advancing the curing of the first curable resin layer and subjecting the foam that is foamed and exposed on the first curable resin layer to a dissolution treatment with a solvent or the like. In addition, this method does not require a special process such as registering, and it is possible to easily form a recess pattern in synchronization with the conduit pattern layer provided on the lower handle. Further, since the difference in gloss between the actual pattern of the recesses and the second curable resin layer is formed by the surface treatment (dissolution method), the engraved embossed decorative paper excellent in three-dimensional effect and deep design can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view in cross section showing an example of a tuned embossed decorative paper according to an embodiment of the present invention.

2A to 2C are explanatory views (a) to (c) in cross section showing a method for manufacturing a tuned embossed decorative paper in an example of the present invention.

FIG. 3 is an explanatory view showing a cross section showing an example of a conventional synchronous embossed decorative paper by embossing.

[Explanation of symbols]

 11, 31 ... Paper base sheet 12, 32 ... Pattern layer 13, 33 ... Conduit pattern layer (lower pattern) 14 ... First curable resin layer 15 ... Second curable resin layer 34 ... Top coat layer H ... Recessed portion T ... Convex portion A ... Foamed body

Claims (2)

[Claims] 1. A paper base sheet (1) on which a pattern layer (12) is printed.
1) The foamable conduit handle layer (13) and the first curable resin layer (14) are provided on the entire surface of the first curable resin layer (14), and the recess (H) is formed on the surface of the first curable resin layer (14). ) Is provided, and the second curable resin layer (15) is provided on the first curable resin layer (14) excluding the recess (H), the recess (H) being a lower handle. A tuned embossed decorative paper characterized in that it is tuned to the conduit pattern layer (13). 2. A paper base sheet (1) on which a pattern layer (12) is printed.
A conduit pattern layer (13) is printed on 1) with a desired pattern using a printing ink in which a capsule foaming agent is dispersed, and a first curable resin layer (14) is further applied thereon, and heated. Then, the first curable resin layer (14) is cured and the capsule foaming agent in the conduit handle layer (13) is foamed, and then the foamed body (A) is subjected to a dissolution treatment to obtain the first A makeup in which a concave portion (H) is formed on the surface of the curable resin layer (14) and a second curable resin layer (15) is provided on the first curable resin layer (14) excluding the concave portion (H). A method for producing a tuned embossed decorative paper, characterized in that the recesses (H) are aligned with the lower conduit pattern layer (13).