JPH05272100A - Decorative sheet and its production - Google Patents

Abstract

PURPOSE:To provide the decorative sheet having high designability by developing a three-dimensional appearance different from conventional decorative sheets on a decorative sheet in which a patterned layer is disposed on an embossed pattern, and to provide a method for producing the same. CONSTITUTION:In the decorative sheet produced by disposing a synthetic resin layer (11) on a substrate (10), forming an embossed pattern (E) on the synthetic layer (11) and subsequently disposing a pattern layer (15) on the embossed pattern (E), the projections and depressions of the embossed pattern on the synthetic resin layer (11) in the decorative sheet are heated or heat-pressed to return the embossed surface to the flat surface-like synthetic layer to provide the decorative sheet (20) in which the traces (EP) of the embossed pattern are left on the patterned layer (15) and in which a three-dimensional appearance is thereby expressed. The decorative sheet is characterized by again forming an embossed pattern (E) on the decorative sheet (20) in which the projections and depressions of the embossed pattern were changed into the flat surface by the heating or heat-pressing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet for interior decorative material such as wallpaper or ceiling material, in which a decorative layer is provided on an embossed pattern to make the unevenness of the embossed pattern flat. The present invention relates to a decorative sheet having a high design property.

[0002]

2. Description of the Related Art Conventionally, as decorative sheets for interior, wallpaper, system kitchen, stereo rack,
It is used for interior pillars and various other interior materials, and its design is an important factor for products. In particular, it is desired to develop a new product having a high design property so as to meet the recent diversifying or increasing demand. For example, a decorative sheet with a pattern can be embossed by changing the pattern (35) or by laminating a transparent sheet (36).
It is known as a decorative sheet having a three-dimensional effect by forming (E). Further, after forming the embossed pattern, a pattern layer is further printed thereon to improve the design.

[0003]

However, it is difficult to print an extremely fine pattern layer by printing, and the stereoscopic effect does not appear only by printing. In addition, as shown in FIG. 4, a transparent resin sheet (36) is laminated and an embossed pattern is formed thereon.
Also for the decorative sheet having (E) formed thereon, unless the laminated transparent resin sheet is thick, a deep three-dimensional effect does not appear, so that its use is limited. It is also possible to provide a pattern layer by printing on the embossed pattern (E), but it lacks printing stability and the pattern layer to be printed must be simple, so it has a depth and a three-dimensional design. It was also difficult to give.

Therefore, the present invention is completely different from the conventional products, and it is an object of the present invention to provide a decorative sheet having a high design property which gives a three-dimensional effect to a sheet having a pattern layer on an embossed pattern. Is.

[0005]

Means for Solving the Problems The present invention has been made in order to solve the above problems. A synthetic resin layer (11) is provided on a substrate (10), and an embossed pattern is formed on the synthetic resin layer. (E) is a decorative sheet having a pattern layer (15) formed on the embossed pattern, the uneven surface of the embossed pattern on the synthetic resin layer in the decorative sheet being heated or heated and pressed to produce a flat surface. Sheet that has a three-dimensional appearance by returning to a synthetic resin layer
(20).

Also, the embossed pattern is formed by heating or heating and pressing.
The decorative sheet (20) is characterized in that the embossed pattern (E) is formed again on the pattern layer (15) of the decorative sheet having the unevenness of (E) as a flat surface.

According to the method for producing a decorative sheet, a synthetic resin layer (11) is provided on a substrate (10), the synthetic resin layer is heated and pressed to form an embossed pattern (E), and then this embossed pattern is formed. Forming a decorative sheet by providing a pattern layer (15) by printing on the top surface, heating or heating and pressing the unevenness of the embossed pattern on the synthetic resin layer in the decorative sheet to return to the flat surface synthetic resin layer. It is a method of manufacturing a featured decorative sheet.

[0008]

The function of the decorative sheet of the present invention is to form the embossed pattern (E) on the synthetic resin layer (11) on the base material (10), and then apply the embossed pattern (E) to the pattern layer.
(15) is provided, and the synthetic resin layer (11) is formed by heating or heating and pressing the unevenness of the embossed pattern (E) to return it to a flat surface shape.
The unevenness of the embossed pattern (11) is erased, and almost the original flat surface synthetic resin layer is restored (see FIG. 2 (b)). Meanwhile, the pattern layer (1
In the case of 5), the pitch width of the embossed pattern becomes narrow or disappears, and when viewed from above, a fine embossed pattern remains on the pattern layer (15) and a three-dimensional effect can be visually recognized. Also, embossed pattern (E) again on the pattern layer of the decorative sheet (20).
As a result, the decorative sheet (20) having a deeper three-dimensional effect as shown in FIG. 3 is obtained.

Further, by heating at a temperature higher than that for forming the embossed pattern (E) on the synthetic resin layer (11), the synthetic resin layer (11) is softened and the embossed pattern (E) is formed. There are portions where the pitch becomes narrower and portions where the pitch disappears, and a fine embossed pattern mark (EP) is left on the pattern layer (15), and it can be visually recognized as if the pattern layer gives a three-dimensional effect.

[0010]

EXAMPLE An example will be described with reference to the drawings. FIG. 1 is an explanatory view of a sheet according to an example of the present invention in which a synthetic resin layer is provided on a substrate to form an embossed pattern. Also, FIG. 2 (a)
2B is a partial cross-sectional view of a decorative sheet in which a pattern layer is provided on an embossed pattern, and FIG. 2B is a view in which the unevenness of the embossed pattern on the synthetic resin layer is returned to a flat surface by heating.

As shown in FIG. 1, as the base material (10), a backing paper, a non-woven fabric, a metal foil or the like used as a base material for wallpaper can be appropriately selected and used. In this embodiment, a synthetic resin layer (11) is applied to the surface of a difficult-to-use backing paper (75 g / m ² ) and dried.
This coating method can be appropriately selected from knife coating, comma coating, gravure coating and the like. The synthetic resin layer (1
1) is a composition in which an additive is mainly added to the acrylic emulsion resin so that the embossed pattern (E) easily enters and the unevenness of the embossed pattern easily returns to a flat surface by heating or heating and pressing. Shown below. (Compounding example) Acrylic emulsion 45% solid content 100 parts by weight PH adjuster (ammonia water) 0.1 〃 aluminum powder 5.0 〃 (EBP-251PA manufactured by Silver Line Co., Ltd.) Defoaming agent (San Nopco Co., Ltd.) Made, Diffuma 154) 0.06 〃 Penetrant (Kao Corporation, Belex OTP) 0.5 〃 Thickener (Nihon Carbide Industry Co., Ltd., FX-928) 1.5 〃 (However, all solid Parts by weight based on the amount) The aluminum powder in the above-mentioned formulation examples is not limited and may be a colorant.

Using a comma coater (50), the synthetic resin paste shown in the above-mentioned formulation example is applied to a thickness of 200 g / m ² to
It is a sheet having a synthetic resin layer (11) formed by coating and drying (heating at 100 ° C. for about 90 seconds) on a backing paper (10) having a difficulty of about 250 g / m ² (FIG. 1 (a)). )).

The embossed pattern is formed on the synthetic resin layer (11) by a hot air type drying oven at an oven temperature of 180 ° C. for about 60 seconds.
Pass through (51), plate depth 60μm to 80μm, pitch 5
A sheet is heated by a far infrared heater (52) and pressed (5 kg / cm ² ) by an embossing roll (53) having an embossed pattern of about 10 pieces / mm from a book (see FIG. 5).

Subsequently, a pattern layer (15) is provided on the embossed pattern (E) by gravure printing, and a single color or several colors may be overprinted. In this embodiment, a synthetic resin layer
Since the synthetic resin layer colored in silver with aluminum powder was used for (11), the pattern layer (15) was an abstract pattern with black ink.

Subsequently, when the embossed decorative sheet is heated with hot air at a furnace temperature of 220 ° C. for 1 minute, for example,
The unevenness of the embossed pattern formed on the synthetic resin layer returns to the flat synthetic resin layer. If a roller or the like is pressed immediately after heating, the surface will be completely flat. However, the embossed pattern
(E) The pattern layer (15) provided above remains as an embossed pattern mark (EP), so that the decorative sheet (20) can be visually recognized as if a deep three-dimensional effect due to the pattern layer appears. It should be noted that the unevenness of the embossed pattern can be completely erased or partly left by adjusting the heating time.

Further, when the embossed pattern is formed again on the pattern layer of the decorative sheet in which the unevenness of the embossed pattern is a flat surface-shaped synthetic resin layer, as shown in FIG. 3, a more three-dimensional effect appears. In this case, the embossed pattern can be changed to a previously formed embossed pattern such as a satin pattern or an abstract pattern to form a decorative sheet (20) having a higher design.

[0017]

EFFECTS OF THE INVENTION The decorative sheet of the present invention has an embossed pattern formed by forming unevenness of the embossed pattern once formed on the synthetic resin layer into a flat synthetic resin layer by heating or heating and pressing. The design layer remains as it is, and the depth and three-dimensional effect of the design layer are revealed, resulting in a decorative sheet with high designability. In addition, since the unevenness of the embossed pattern is eliminated, the surface of the decorative sheet is not roughened, so that stains and the like are less likely to adhere, and a thin decorative sheet can be obtained in which a deep three-dimensional effect can be visually recognized. Further, by forming the embossed pattern again on the flat-faced decorative sheet, a three-dimensional effect can be further revealed and the decorative sheet can be highly designed.

[Brief description of drawings]

FIG. 1A is an explanatory view showing a sheet in which a synthetic resin layer is provided on a base material according to an embodiment of the present invention. (B) It is explanatory drawing which shows the sheet in which the embossed pattern was formed on the said synthetic resin.

FIG. 2 (a) is a partial cross-sectional view of a decorative sheet in which a pattern layer is provided on an embossed pattern formed on a synthetic resin layer. (B) It is a partial cross-sectional view of the decorative sheet showing a state where the decorative sheet is heated or heated and pressed to eliminate the unevenness of the embossed pattern and returned to a flat surface shape.

FIG. 3 is a partial cross-sectional view of a decorative sheet in which an embossed pattern is formed again on a decorative sheet that has once been made flat.

FIG. 4 is a partial cross-sectional view showing an example of a conventional decorative sheet having an embossed pattern formed thereon.

FIG. 5 is an explanatory view showing a state in which a synthetic resin layer in the decorative sheet of the present invention is heated to form an embossed pattern.

[Explanation of symbols]

 10,30 Base material 11 Synthetic resin layer 15,35 Picture layer 20 Decorative sheet 31 Plastic sheet 36 Transparent plastic sheet 50 Comma coater 51 Hot air drying oven 52 Far infrared heater 53 Embossing roll E ... Embossed pattern EP ... Trace of embossed pattern

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B32B 31/26 7141-4F 33/00 7141-4F D21H 27/36 7199-3B D21H 5/00 A

Claims (3)

[Claims] 1. A decorative sheet in which a synthetic resin layer is provided on a substrate, an embossed pattern is formed on the synthetic resin layer, and a pattern layer is provided on the embossed pattern, the synthetic resin layer in the decorative sheet. A decorative sheet, characterized in that the unevenness of the upper embossed pattern is formed into a flat synthetic resin layer by heating or heating and pressing. 2. The decorative sheet according to claim 1, wherein an embossed pattern is formed on the pattern layer of the decorative sheet. 3. A synthetic resin layer is provided on a base material, the synthetic resin layer is heated to form an embossed pattern, and then a pattern layer is provided on the embossed pattern by printing to form a decorative sheet,
A method for producing a decorative sheet, characterized in that the unevenness of the embossed pattern on the synthetic resin layer in the decorative sheet is heated or heated and pressed to form a flat surface synthetic resin layer.