JPH05147183A - Composite decorative sheet - Google Patents

Abstract

PURPOSE:To provide a composite decorative sheet for furniture, a kitchen door, etc., Wherein an abrasion property and weather resistance of surface is good and its decorative design has a cubic, non-reproducible brighting pattern. CONSTITUTION:The title composite decorative sheet is composed of an biaxial orientated polyester film A, an adhesive B, a transparent film layer C having polymethyl methacrylic acid as a main component, a mottled pattern bright sheet layer D having a mottled pattern decorative design wherein titanium mica is dispersed in a transparent resin, and a colored sheet layer E.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-quality, three-dimensional, high-decorative design material for use as a material for furniture, wall materials, floor materials, home appliances, automobile interiors, and the like.

[0002]

2. Description of the Related Art In recent years, furniture, wall materials, floor materials, automobiles, and home electric appliances have been required to be more luxurious and individual. For example, those using high-quality materials such as marble and natural wood, and bringing the design and texture closer to those natural wood,
Apart from the design feeling of multi-layered composite materials and natural wood that have improved durability, geometric patterns are printed to express high designability. Generally speaking, the repeatable identical design and flat design that are often present when designing by simple printing does not give a sense of luxury and gives only a certain design value, rather the non-reproducibility and the three-dimensional effect that is found in natural materials. , Depth, etc. are given high design value. However, high-grade name wood and marble are very expensive, have limited resources, and have problems with mechanical strength and dimensional stability. What is expressed is highly demanded. However, the present situation is that it changes depending on the three-dimensional effect and viewing angle, and that it has a depth and that the glittering feeling seen in some marbles and famous wood cannot be expressed.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a covering material sheet having a three-dimensional effect and a glittering feeling which cannot be expressed by conventional artificial materials. Further, the present invention is intended to eliminate the drawbacks of the decorative vinyl chloride sheet conventionally used for this purpose, that is, it is easily scratched and the weather resistance is poor.

[0004]

The present invention is a decorative sheet to be attached to the surface of a wood base material, a metal plate base material such as a steel plate or an aluminum plate, and the biaxially stretched polyester film (A) in order from the surface side. , An adhesive layer (B), a transparent film containing polymethylmethacrylic acid as a main component, and a film layer (C) having a transmittance of 10% or less in an ultraviolet wavelength region of 360 nm or less, a transparent resin Titanium mica is dispersed and the dispersed state is such that the axis of the direction perpendicular to the plate surface of the titanium mica is oriented in substantially the same direction in any unit portion in the plane direction of the sheet, and the adjacent unit portions are separated from each other. A composite decorative sheet, which is composed of five layers of a coddle-pattern bright sheet layer (D) and a colored sheet layer (E), which are dispersed in different axial directions and have a mottled design. .

The outermost biaxially stretched polyester film (A) is preferably a film having a thickness in the range of 12 to 50 .mu., And its light transmittance is 90% in order not to impair the design.
The above is necessary. The adhesive layer (B) is a general two-component curable adhesive such as a urethane-based, polyamide-based, or epoxy-based dry laminating adhesive or a vinyl chloride-based, polyester-based, polyurethane-based hot-melt adhesive, or the like. It may be selected according to the construction method. The thickness is preferably 0.5 to 5 μ.

The polymethylmethacrylic acid type film layer (C) contains a benzotriazole type ultraviolet absorber of 0.5.
A film having a light transmittance of 10% or less in the ultraviolet wavelength region of 360 nm or less is used.
The film layer may contain butyl acrylate, a butadiene-based copolymer or the like as an impact modifier. The thickness of the film is preferably in the range of 20-100 μm. When it is less than 20 μm, the adhesive strength to the lower cod pattern bright sheet layer (D) becomes insufficient, and when it is more than 100 μm, the yellowness of the film becomes strong and the transparency is impaired, which is not preferable. The coddy pattern glitter sheet layer (D) has a non-reproducible and three-dimensional glittering pattern. Further, the sheet layer (D) has titanium mica dispersed in a transparent resin, and the titanium mica dispersion rate m (%) is 20 ≦ t × m ≦ with respect to the thickness t (μm) of the sheet layer (D). 80
It is preferably in the range of 0. When m is smaller than 20 / t, the three-dimensional effect and the glittering effect of the intended design are reduced, which is not preferable. When it is more than 800 / t, the hue of the colored film layer (E) as the base is not transmitted and the design is reduced. Titanium mica as used herein refers to scale-like mica particles coated with titanium dioxide, or reduced titanium mica in which low-order titanium oxide having a lower oxidation degree than titanium dioxide is laminated between titanium dioxide and mica particles. As the base resin of the sheet layer (D), a transparent resin such as polyvinyl chloride, polyester, polystyrene, polymethylmethacrylate or the like is used. If necessary, use other colorants in the transparent resin,
You may add a stabilizer, a ultraviolet absorber, etc.

The colored sheet layer (E) determines the background color of the composite decorative sheet of the present invention, and the basic design and hue are determined by the combination of the upper glitter sheet layer and the printing layer. The base resin of the colored sheet is preferably the same as the base resin of the coddle pattern glitter sheet layer (D), but it is not defined by the present invention. Coloring may be performed by using any pigment having a hue suitable for the intended design, and the manufacturing method of the coloring sheet is not the main purpose of the present invention. The adhesion between the layers (A), (B), (C), (D), and (E) described above is performed by a hot press method, an extrusion laminating method, a dry laminating method,
Any laminating means such as a thermal laminating method using a hot roll may be used.

[0008]

The biaxially stretched polyester film layer (A) improves the surface hardness of the present composite decorative sheet, and as a surface layer for furniture furniture, due to its scratch resistance and surface luster, it forms a lower cod pattern glitter sheet layer (D). It has the role of emphasizing the three-dimensional effect and glitter. The adhesive layer (B) serves to bond the upper layer (A) and the lower layer (C). The polymethylmethacrylic acid-based film has the purpose of improving weather resistance and the function of adhering the lower layer (D). Madara pattern Since the marbled Madara pattern of the glittering sheet layer (D) is a three-dimensional and non-reproducible pattern, it has a function of giving a high-grade feeling. In addition, the coddle pattern glittering sheet layer (D), in combination with the background coloring sheet layer (E), produces a color with a unique glittering feeling.

[0009]

[Examples] The following two types of sheets using polyvinyl chloride as a base resin were produced by the calendar method. D: Madara pattern glitter sheet (Merck Iriodin 2
35 added 0.5%, thickness 200μ) and E; for each red opaque sheet (thickness 100μ) A: biaxially stretched polyester film (thickness 25μ) B: using a two-component urethane adhesive C: polymethylmethacrylic Acid film (thickness 35μ)
And was laminated by the dry lamination method. For the polymethylmethacrylic acid film, 1.5% of CIBA's Tisbin P was added in advance to obtain a film by the T-die extrusion method. The laminated A-B-C film and D and E films were piled up and fusion-laminated at a temperature of 180 ° C. with a heating press roll. The obtained laminated sheet has a three-dimensional appearance in the dispersion pattern of titanium mica, and depending on the viewing angle, the green brilliance of titanium mica and the background red color change and it is a high-class sheet, and the surface is not easily scratched. Was obtained. Furthermore,
A weather resistance test evaluation was carried out with a sunshine weather orometer, and it was confirmed that there was almost no change in hue even after irradiation for 200 hours, and that it had good weather resistance.

[0010]

EFFECTS OF THE INVENTION The composite decorative sheet of the present invention has a deeper pattern than a conventional doubling sheet for surface layer, a melamine decorative plywood or a polyester decorative plywood, which is obtained by printing a conventional colored sheet and attaching a transparent sheet to the surface. Thus, a laminated sheet having a high design value, in which the hue and pattern change depending on the viewing angle, was obtained. Further, it was also excellent in scratch resistance and weather resistance, and a laminated sheet having sufficient durability was obtained as the surface layer of the indoor furniture member.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a layer structure of a composite decorative sheet of the present invention.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location B32B 27/00 E 7717-4F 27/20 Z 6122-4F 27/30 A 8115-4F 27/36 7016-4F E04F 13/00 B 8913-2E // B29K 67:00 B29L 7:00 4F

Claims (1)

[Claims] 1. A decorative sheet to be attached to the surface of a wood base material, a metal plate base material such as a steel plate or an aluminum plate, which comprises a biaxially stretched polyester film (A), an adhesive layer (B), in that order from the surface side. A film layer (C) which is a transparent film containing polymethylmethacrylic acid as a main component and has a transmittance of 10% or less in an ultraviolet wavelength region of 360 nm or less, and titanium mica dispersed in a transparent resin and the dispersion thereof. The state is that the axis in the direction perpendicular to the plate surface of the titanium mica is oriented in almost the same direction in any unit portion in the plane direction of the sheet, and dispersed so that the axis directions of adjacent arbitrary unit portions are different from each other. And a composite decorative sheet comprising five layers of a mottled pattern bright sheet layer (D) and a colored sheet layer (E) having a mottled design.