JPH09300559A - Makeup sheet - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: Very little generation of harmful gases such as chlorine compounds when utilizing incineration treatment as a means for treating waste materials, excellent physical properties such as weather resistance and adhesion, and V-cut processing and lapping processing. It is to provide a decorative sheet having an excellent design property, which is suitable for SOLUTION: In a decorative sheet in which a polyolefin resin film layer, a primer resin layer, a pattern printing layer, a heat adhesive resin layer, and a transparent acrylic resin film layer are laminated in order from the bottom, the primer resin layer is 2 A decorative sheet made of a liquid curable urethane resin, and the heat-adhesive resin layer made of a vinyl chloride-acryl resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet that is attached to various kinds of furniture, building interior materials, etc. for the purpose of decoration or surface protection.

[0002]

2. Description of the Related Art Conventionally, as such a decorative sheet,
A decorative sheet is known in which a transparent vinyl chloride resin film is laminated on a vinyl chloride resin film by printing in a usual manner. The reason why the vinyl chloride resin film is used for the base material sheet is that it is a general-purpose resin and has a low manufacturing cost, easy coloring, good laminating process, easy embossing process, further vacuum forming processability, V
The reason is that the ease of secondary and tertiary processing such as cut workability is good or balanced as compared with other resins. However, in connection with recent environmental problems,
Since chlorine compounds are generated when subjected to incineration treatment, there is a problem that incineration treatment cannot be used as a means for treating waste materials, and sheets other than vinyl chloride resin containing no chlorine group are required.

On the other hand, as a material for overcoming such drawbacks of a vinyl chloride resin film, a pattern printing layer is formed on a polyolefin resin film such as polyethylene or polypropylene on a base sheet, and a transparent acrylic resin film is formed thereon. A laminated decorative sheet has been proposed, but when a two-component curing type urethane resin is used as the printing ink for forming the pattern printing layer, it has excellent adhesion to the polyolefin resin film which is the base sheet. But
There is a problem that the peeling strength is inferior due to poor heat adhesion to the transparent acrylic resin film as the surface protection layer, and the vinyl chloride-acrylic resin ink that has excellent heat adhesion to the transparent acrylic resin film is used. However, the adhesion such as peeling strength is sufficient, but there is a problem that the deterioration of weather resistance of the polyolefin-based resin film is promoted, and the polyolefin-based resin film is easily discolored and weakened.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to remove harmful gases such as chlorine compounds when incineration is used as a means for treating waste materials. It is an object of the present invention to provide a decorative sheet which is extremely rare, has excellent physical properties such as weather resistance and adhesion, and has excellent design properties suitable for V-cut processing and lapping processing.

[0005]

Means for Solving the Problems The means for achieving the above object of the present invention is to provide a polyolefin resin film layer, a primer resin layer, a pattern printing layer, a heat adhesive resin layer, and a transparent acrylic resin film layer. In the laminated structure in order from the bottom, the primer resin layer is made of a two-component curing type urethane resin, and the heat-adhesive resin layer is made of a vinyl chloride / acryl-based resin. . With this configuration, when the incineration process is performed, the generation of chlorine compounds is extremely small, and the incineration process can be performed. Moreover, the ink forming the pattern printing layer is formed by laminating the vinyl chloride-acetic acid vinyl-acrylic resin layer between the pattern printing layer and the transparent acrylic resin film and the acrylic resin film as the surface protection layer and the heat Even if it is not suitable for lamination, the base sheet layer and the surface protective layer can be thermally laminated. Further, by providing a two-component curing type urethane resin layer on the upper surface of the polyolefin resin film, deterioration of weather resistance of the polyolefin resin film can be prevented.

The two-part curable urethane resin layer constituting the primer resin layer is a decorative sheet having a film thickness of 5 μm or more. With this configuration, it is possible to prevent deterioration of the weather resistance of the decorative sheet.

[0007] Further, the upper surface of the transparent acrylic resin film layer is embossed to form embossed recesses, and the embossed recesses are filled with colored ink by wiping, and then a decorative sheet having a gloss adjusting resin layer is provided. By so doing, it is possible to enhance the design of the decorative sheet.

Further, a glossy difference is formed between the gloss adjusting resin layer and the matte pattern layer by providing a decorative sheet in which the gloss adjusting resin layer and the matte pattern layer are provided on the upper surface of the transparent acrylic resin film layer. In reality, although it is a convex surface, a concave surface can be visually sensed to form an embossed pattern, and a decorative sheet excellent in design can be obtained at low cost.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a laminated constitution of an embodiment of the decorative sheet of the present invention, FIG. 2 is a sectional view showing a laminated constitution of another embodiment of the decorative sheet of the present invention, and FIG. 3 is a makeup of the present invention. Sectional drawing which shows the laminated constitution of other Examples of a sheet | seat, FIG. 4 is sectional drawing which shows the laminated constitution of the Example of the decorative board produced using the decorative sheet of this invention. 'Is a decorative sheet, 2 is a polyolefin resin film, 3 is a primer resin layer, 4 is a pattern printing layer, 5 is a heat-adhesive resin layer, 6 is a transparent acrylic resin film, 8 is a colored ink layer, and 9 is a gloss adjustment. Resin layer, 10 is a matte pattern layer, 11 is an easily adhesive layer, 12 is an adhesive layer, 13
Represents a substrate, and 14 represents a decorative plate.

As shown in FIG. 1, the basic constitution of the decorative sheet 1 of the present invention is, in order from the bottom, a polyolefin resin film 2, a primer resin layer 3, a pattern printing layer 4, a heat-adhesive resin layer 5, and A transparent acrylic resin film 6 is laminated, and is characterized in that a primer resin layer 3 composed of a two-component curable urethane resin layer is provided between a polyolefin resin film 2 which is a base sheet and a pattern printing layer 4.
In addition, the transparent acrylic resin film 6 is strongly laminated by thermal adhesion via the thermoadhesive resin layer 5 made of vinyl chloride / acetic acid vinyl-acrylic resin provided on the upper surface of the pattern printing layer 4.

The polyolefin resin film 2 as the base sheet layer used in the decorative sheet 1 of the present invention is a material which has strength and appropriate elongation and is inexpensive. More importantly, there are no chlorine groups in the molecule. Furthermore, by coloring, it has a concealing property,
It is possible to prevent the print pattern of the pattern print layer 4 formed on the base sheet layer from being affected by the color of the substrate to be bonded. Examples of the coloring method include methods such as pigment mixing, foaming, and cavitation treatment.

The thickness of the polyolefin resin film 2 is not particularly limited and may be V cut,
50 in terms of post-processing such as lapping and material cost
To 200 μm is preferable, and in order to improve the adhesion between the two surfaces of the polyolefin resin film with the printing ink and the primer resin layer, those subjected to corona treatment with a surface wetting index of 40 dynes or more are preferable, and UV absorption It is also preferable to use those taking weather resistance into consideration by adding agents, light stabilizers and the like.

A transparent film is used as the acrylic resin film 6 as the surface protective layer to protect the printing layer, and most importantly, it contains no chlorine group in the molecule. is there. In addition, it has excellent physical properties such as weather resistance and stain resistance, and is suitable for embossing. The acrylic resin used as the acrylic resin film is
Acrylic acid obtained by polymerizing acrylic acid ester (acrylamide, acrylonitrile) whose main component is acrylic acid (including methacrylic acid) and its derivatives,
It is an acrylic copolymer resin with other monomers such as styrene. The thickness of the transparent acrylic resin film 6 is
In view of weather resistance, cost, etc. of the laminated composite decorative sheet, 25 to 50 μm is preferable.

A primer resin layer 3 for preventing deterioration of weather resistance is provided on the upper surface of the polyolefin resin film 2. The primer resin layer 3 has excellent adhesion to the polyolefin resin film 2 and the pattern printing layer 4, and has a function of preventing deterioration of weather resistance of the polyolefin resin film 2 due to the ink vehicle used for the pattern printing layer 2. The liquid-curable urethane resin is most preferably used, and the thickness of the primer layer 3 is preferably 5 μm or more. That is, when the thickness is less than 5 μm, deterioration in weather resistance cannot be prevented. However, if it exceeds 10 μm,
It is difficult to form by a single coating operation with a gravure coat, and it cannot be performed in the same step as the formation of the pattern print layer, resulting in poor productivity and an increase in cost.

The pattern printing layer 4 is provided with a print representing a wood grain pattern, a stone pattern, a cloth pattern, a surface pattern of natural leather, an abstract pattern, etc., and is used as an ink vehicle for providing an arbitrary pattern. Is a non-curable resin such as vinyl chloride-acryl resin, chlorinated polypropylene resin, polypropylene modified urethane resin, etc., and is formed by gravure printing.

The heat-adhesive resin layer 5 is provided between the transparent acrylic resin film 6 and the pattern printing layer 4 in order to improve the adhesive force between them, and the transparent acrylic resin film 6 and the pattern are provided. Heat is applied to both films of the polyolefin resin film 2 provided with the printing layer 3 to laminate the films, and the films are heat-sealed and laminated. When the pattern printing layer is partially provided instead of the entire surface, or when the ink constituting the pattern printing layer 4 is not suitable for thermal adhesion with the transparent acrylic resin film 6 which is the surface protection layer, the pattern printing layer 4 The heat-adhesive resin layer 5 may be provided on the upper surface.
As the heat-adhesive resin layer 5, chlorovinyl acetate-acrylic resin,
It is a transparent coating material such as polypropylene-modified urethane resin or a printing ink, which can be provided simultaneously with printing by the same gravure printing machine, and the film thickness is preferably 1 to 3 μm.

Further, as a decorative sheet 1'having another structure of the present invention, as shown in FIG. 2, the colored ink 8 is filled in the embossed recesses provided on the surface of the transparent acrylic resin film 6, and then the colored ink 8 is filled. There is a configuration in which the gloss adjusting resin layer 9 is provided, and by filling the colored ink into the concave and convex portions provided on the surface by wiping, the design effect of the decorative sheet is further enhanced.

In the embossing process, the polyolefin resin film 2 and the transparent acrylic resin film 6 are passed through the heat rolls which are pressed against each other while being overlapped with each other, and heat fusion is performed to manufacture one composite sheet. The transparent acrylic resin film 6 is heat-sealed to the pattern printing layer 3 of the polyolefin resin film 2 through the heat-adhesive resin layer 5 by applying pressure while heating to form one decorative sheet. If a conduit embossing roll is used as the doubling heat roll, doubling and embossing can be performed simultaneously. Then, the steps such as doubling and embossing can be performed with the same apparatus as that for a normal polyvinyl chloride film.

As the colored ink 8 filled in the embossed recesses of the transparent acrylic resin film 6, paint or ink is used. For example, synthetic resins such as natural resins or modified resins thereof, cellulose derivatives, polyvinyl chloride resins, acrylic resins, polyester resins, polyurethane resins are used as constituent materials of the vehicle, and coloring pigments and constitutions are contained in the vehicle. A paint or an ink obtained by adding a pigment, a plasticizer, etc. is used. 2 as the vehicle used
A liquid-curable urethane resin is preferably used. The wiping method may be any of the conventionally used wiping methods such as a doctor blade method and a roll coating method.

Even if the gloss adjusting resin layer 9 is colorless and transparent,
Alternatively, it may be colored and transparent, or may be matte and transparent, and is provided to adjust the glossiness of the surface of the decorative sheet, but also has a role of surface protection. Gloss adjustment layer 9
Is formed by applying a coating material using an appropriate vehicle, and the vehicle is one or two of thermosetting resins such as phenol resin, unsaturated polyester resin, epoxy resin, polyurethane resin, and acrylic resin. The above mixed resins can be used. In the coating material forming the gloss adjusting resin layer 9, a suitable amount of a matting agent is usually dispersed to give a desired gloss. As the matting agent, mica, silica, alumina, calcium carbonate, silica sand, shirasu balloon, etc. may be used. Is used. As a method for applying the above-mentioned paint, a method such as gravure coating, roll coating, air knife coating, etc. is used.

Further, as a decorative sheet 1 ″ having another structure of the present invention, as shown in FIG. 3, a gloss adjusting resin layer 9 and a matte pattern layer 10 are formed on the surface of the transparent acrylic resin film 6. There is a configuration. On the transparent acrylic resin film 6, a matte pattern layer 10 is provided so that it is actually a convex surface, but a concave surface can be visually sensed to form an embossed pattern, which enhances the decorative sheet design effect. The embossing and wiping steps are unnecessary, and it is possible to obtain a decorative sheet that is low in cost and excellent in design.

Next, as shown in FIG. 4, a decorative board 14 manufactured using the decorative sheet 1'of the present invention will be described. The decorative plate 14 is the back surface of the polyolefin-based resin film 2 of the decorative sheet 1 ′ described in the other embodiment,
That is, the easily adhesive resin layer 11 is provided on the side where the pattern print layer 4 is not provided, and the substrate 13 is adhesively laminated via the adhesive layer 12.

The easy-adhesive resin layer 11 is formed by a gravure printing method or the like to a thickness of about 1 micron by using an ink made of a chlorinated polypropylene-modified urethane-based two-component curing type resin, thereby forming a general-purpose ethylene-based resin. Sufficient adhesive strength is obtained even when laminated on a plywood or the like with a vinyl acetate emulsion adhesive. Since the obtained decorative board has excellent physical properties such as abrasion resistance, solvent resistance, weather resistance, and chemical resistance, it can be used for interior doors, furniture and other interior building materials, and has V-cut grooves on plywood. It can also be used for forming and bending, and for lapping applications such as irregularly shaped wood and irregularly shaped products.

[0024]

【Example】

Example 1 A colored polyolefin resin film (OW-D, manufactured by Riken Vinyl) having a thickness of 100 μm was used, and an ink made of a two-component curable urethane resin was used by gravure printing on the corona-treated surface of the colored polyolefin resin film. Then, a primer layer is provided to a thickness of 6 μm, and a solid printing layer and a wood grain pattern printing layer with a vinyl chloride / acetic acid vinyl-based resin ink, and a heat-adhesive resin layer with a vinyl chloride / vinyl acetate-acrylic type medium with a thickness of 2 μm. Gravure printing was applied to the thickness to obtain a wood grain print sheet. Next, a transparent acrylic resin film with a thickness of 50 μm (made by Mitsubishi Rayon, Acryprene HB
S-001) and the heat-adhesive resin layer surface of the printed colored polyolefin resin film are overlapped, and the heating temperature is 120 ° C., the speed is 20 m / min, and the nip pressure is 20 kg / c.
A doubling decorative sheet was produced by performing thermal lamination under the condition of m ² .

Example 2 Under the thermal laminating conditions of Example 1, the pattern printing layer surface of the colored polyolefin resin film printed and the transparent acrylic resin film were pressure-bonded between an embossing roll and a silicone rubber roll to perform thermal lamination. By doing so, a decorative sheet having embossed recesses was produced. Further, a two-component curable urethane-based coloring ink is applied to the surface of the transparent acrylic resin film having the concave portion formed by the embossing on the surface by a roll coating method, and then the liquid is adhered to a portion other than the concave portion by a doctor blade. The coloring ink was removed, and the coloring ink was filled in the embossed recesses formed on the surface of the laminated sheet and solidified. On this sheet, a two-component curable urethane-based gloss adjusting paint is applied to a plate depth of 60 μm.
By coating with a gravure roll,
A doubling wiping decorative sheet with high processability was produced.

[0026]

As described above, the present invention provides the surface of a polyolefin resin film as a base substrate layer,
By laminating a transparent acrylic resin film as a surface protection layer, both of the resins will not contain chlorine atoms, so there will be very little hydrogen chloride in the gas generated during incineration, thus polluting the environment. There is no problem such as the occurrence of waste, and the excellent effect that the incineration means can be used as a means for treating the waste material can be achieved.

Since the two-component curing type urethane resin layer is provided as the primer resin layer in a thickness of 5 μm or more, deterioration of weather resistance of the polyolefin resin film is less likely to occur.
Further, since the vinyl chloride-acetic acid-acrylic resin layer is provided as the heat-adhesive resin layer on the pattern printing layer, the transparent acrylic resin film can be easily laminated by heat adhesion.

Further, since the base material sheet is a polyolefin resin film, it has appropriate flexibility and is inexpensive. A laminated decorative sheet in which a transparent acrylic resin film is laminated has a lapping process or a V-cut process. A decorative sheet suitable for subsequent processing can be obtained. By using a decorative sheet with an easily adhesive resin layer on the lower surface of a polyolefin resin film, a general-purpose adhesive such as polyvinyl acetate emulsion type can be used for plywood, etc. It can be easily attached to the substrate.

Since the embossed recesses are formed on the upper surface of the transparent acrylic resin film and the embossed recesses are colored by wiping, a decorative sheet excellent in design can be obtained by combining with the printed pattern.

Further, without performing embossing or wiping, the surface pattern is visually felt as if it is a recess, and the pattern has an embossed tone. Therefore, a decorative sheet excellent in designability can be obtained at low cost. I can.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a laminated structure of an embodiment of a decorative sheet of the present invention.

FIG. 2 is a cross-sectional view showing a laminated structure of another embodiment of the decorative sheet of the present invention.

FIG. 3 is a cross-sectional view showing a laminated structure of another embodiment of the decorative sheet of the present invention.

FIG. 4 is a cross-sectional view showing a laminated structure of an example of a decorative plate manufactured using the decorative sheet of the present invention.

[Explanation of symbols]

 1 1'decorative sheet 2 polyolefin resin film 3 primer resin layer 4 pattern printing layer 5 heat-adhesive resin layer 6 transparent acrylic resin film 7 embossed recesses 8 colored ink layer 9 luster control resin layer 10 matte pattern layer 11 easy adhesion Resin layer 12 Adhesive layer 13 Substrate 14 Decorative plate

Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number for FI Technical indication B32B 27/30 B32B 27/30 A 33/00 33/00

Claims (4)

[Claims] 1. A decorative sheet comprising a polyolefin resin film layer, a primer resin layer, a pattern printing layer, a heat-adhesive resin layer, and a transparent acrylic resin film layer, which are laminated in this order from the bottom, wherein the primer resin layer is A decorative sheet comprising a two-component curable urethane resin, wherein the heat-adhesive resin layer comprises a vinyl chloride-acryl resin. 2. The decorative sheet according to claim 1, wherein the two-component curable urethane resin layer constituting the primer resin layer has a film thickness of 5 μm or more. 3. An upper surface of the transparent acrylic resin film layer is embossed to form an embossed recess, and the embossed recess is filled with a colored ink by wiping, and then a gloss adjusting resin layer is provided. The decorative sheet according to claim 1 or 2, characterized in that. 4. The decorative sheet according to claim 1, wherein a gloss adjusting resin layer and a matte pattern layer are provided on the upper surface of the transparent acrylic resin film layer.