JP2006069040A - Metallic tone decorative sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metallic tone decorative sheet which is high in metal tone designability and excellent in weatherability and interlayer adhesion. <P>SOLUTION: In the metallic tone decorative sheet, a transparent acrylic resin film is laminated on the surface of metal foil through a dry lamination type adhesive, a transparent olefin resin film is laminated on the surface of the metal foil through the dry lamination type adhesive and additionally a transparent acrylic resin film is laminated on the olefin resin film through an adhesive, or a colored thermoplastic resin film is laminated on the back of the metal foil through the dry lamination type adhesive. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a decorative sheet used for applications requiring weather resistance such as an entrance door, a terrace, a carport, and the like, and more particularly, to a metallic decorative sheet having high metallic design.

As the metal-like decorative sheet, there was a pearl pigment or metal vapor-deposited on an olefin-based thermoplastic film, and an acrylic resin film was laminated with a heat laminate in order to give weather resistance to the surface, but interlayer adhesion was There was a problem.
JP 2000-326451 A

  The present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a metal-like decorative sheet having high metallic design and excellent weather resistance and interlayer adhesion. There is to do.

  The present invention has been made to solve the above problems, and the invention according to claim 1 is that a transparent acrylic resin film is laminated on the surface of a metal foil via a dry laminate adhesive. It is the metal-like decorative sheet characterized.

  In the invention of claim 2, a transparent olefin resin film is laminated on the surface of the metal foil via a dry laminate adhesive, and further a transparent acrylic resin film is laminated on the surface via an adhesive. It is a metal-like decorative sheet.

  The invention according to claim 3 is characterized in that a colored thermoplastic resin film is laminated on the back surface of the metal foil via a dry laminate adhesive. It is a decorative sheet.

  According to the first aspect of the present invention, it is possible to improve the interlayer adhesion between the metal foil and the acrylic film by dry laminating, and it is possible to provide a high-design metal-like decorative sheet having weather resistance. It became.

  In addition, the invention according to claim 2 makes it possible to improve the interlaminar adhesion between the metal foil and the olefin film by dry laminating, and to provide weather resistance performance by providing an acrylic film on the surface. It became possible to provide a metal-like decorative sheet.

  Further, according to the invention described in claim 3, by providing a colored thermoplastic resin film layer on the back surface of the metal foil, even when laminated to an aluminum base material or a steel sheet base material, it is difficult to be affected by glue or foreign matter. It became possible to provide seats

Hereinafter, the metallic decorative sheet of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a cross-sectional structure of one embodiment of a metallic decorative sheet of the present invention. From the surface of the metal foil 1, a dry laminating adhesive 2, a transparent olefin resin film 4 provided with a primer layer 3 and a transparent solid ink layer 5 as necessary is laminated, and an adhesive layer 6 and a transparent acrylic resin film 7 are laminated. Laminate. A thermoplastic resin layer 9 provided with a primer layer 10 is provided on the back surface of the metal foil 1 with a dry laminate adhesive 8 as necessary.

  As the metal foil 1 in the present invention, an aluminum foil, a stainless steel foil, an indium foil, a gold foil, a silver foil, a foil of a mixture thereof, or the like can be used. Moreover, after performing a hairline process on the surface or both surfaces, you may perform a boehmite process in order to improve adhesive force.

  The dry laminate adhesives 2 and 8 provided to provide interlayer strength on the front or back surface of the metal foil 1 in the present invention include polyester polyols and the like, and hexamethylene diisocyanate, tolylene diisocyanate and mixtures thereof as curing agents. A two-component urethane resin adhesive coated with a thickness of 4 μm to 10 μm after drying can be used. As the laminating method, a dry laminating method is used.

  As the transparent olefin resin film 4 in the present invention, an olefin resin conventionally used as a material for a base sheet for a decorative sheet can be used. Specific examples include polyethylene, polypropylene, polybutene, polymethylpentene, and the like. Moreover, you may provide the primer layer 3 and the transparent solid ink layer 5 suitably.

  When the olefin resin film 4 is provided, the adhesive 6 between the transparent acrylic resin film 7 and the transparent acrylic resin film 7 uses an acrylic, polyester, or vinyl chloride heat sealant in addition to the dry laminate adhesive. be able to. As a laminating method, a dry laminating method or a thermal laminating method can be applied.

  The kind of the thermoplastic resin layer 9 is not specifically limited, For example, the well-known arbitrary thermoplastic resin currently used as a raw material of the base material sheet for decorative sheets which concerns conventionally can be used. Specifically, for example, polyolefin resins such as polyethylene, polypropylene, polybutene, and polymethylpentene, polyolefin resins such as ethylene-vinyl acetate copolymer or a saponified product thereof, and ethylene- (meth) acrylic acid (ester) copolymer. Copolymer, Polyethylene terephthalate, Polybutylene terephthalate, Polyethylene naphthalate, Polyarylate, Polyester resin such as polycarbonate, Acrylic resin such as polymethyl methacrylate, 6-Nylon, 6, 6-Nylon, 6, 10-Nylon Polyamide resin such as polystyrene resin, AS resin, ABS resin, styrene resin such as cellulose acetate, cellulose derivatives such as nitrocellulose, chlorinated resin such as polyvinyl chloride and polyvinylidene chloride, polyvinyl fluoride, poly Fluorine resins such as vinylidene chloride, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, etc., or two or more types of copolymers or mixtures selected from these, mixtures, composites, laminates, etc. are used. be able to.

  However, in consideration of adaptation to environmental problems that are becoming a social problem in recent years, the use of the above-mentioned chlorine-based resins and fluorine-based resins cannot be said to be very preferable, that is, a resin not containing a halogen element such as chlorine or fluorine, that is, It is preferable to use a non-halogen resin. Above all, in addition to the market price, distribution volume, and ease of procurement, the balance of appropriate flexibility and strength as a base sheet for decorative sheets, processing appropriateness such as bending, cutting and cutting, wear resistance, etc. It is preferable to use a thermoplastic resin selected from polyolefin resins, acrylic resins, and polyester resins from the viewpoint of various physical properties such as surface properties such as solvent resistance and weather resistance.

  Two-component urethane-based dry laminate bonding of 10 μm thick aluminum foil (Toyo Aluminum Co., Ltd., grade name “1N30”) and 50 μm thick acrylic film (Mitsubishi Rayon Co., Ltd., trade name “HBS006”) It laminated | stacked by dry lamination adhesion through the agent (made by Toyo Morton Co., Ltd.), and the metal-like decorative sheet was obtained.

  A two-component urethane primer resin containing silica powder is gravure coated on one side of a 120 μm thick colored polypropylene film (trade name “RIVEST TPO”, manufactured by Riken Technos Co., Ltd.) to obtain a polypropylene single layer film with a primer layer. It was.

  A two-component urethane-based dry laminate adhesive (manufactured by Toyo Morton Co., Ltd.) and a 10 μm thick aluminum foil (manufactured by Toyo Aluminum Co., Ltd., grade name “1N30”) and the non-primer layer surface of the polypropylene single layer film with the primer layer. ) To obtain a colored polypropylene / aluminum laminated film.

  A 50 μm thick acrylic film (Mitsubishi Rayon Co., Ltd., trade name “HBS006”) prepared separately on the aluminum foil surface of the polypropylene / aluminum laminated film is a two-component urethane dry laminate adhesive (Toyo Morton Co., Ltd.). ) To obtain a metallic decorative sheet.

  A two-component urethane primer resin containing silica powder is gravure-coated on one side of a 120 μm thick colored polypropylene film (trade name “RIVEST TPO” manufactured by Riken Technos Co., Ltd.) to obtain a polypropylene single layer film with a primer layer. It was.

  The non-primer layer surface of the polypropylene single layer film with the primer layer is applied to one side of a 10 μm thick aluminum foil (manufactured by Toyo Aluminum Co., Ltd., grade name “1N30”). To obtain a colored polypropylene / aluminum foil laminated film.

  In addition, gravure coating is applied to one side of a separately prepared transparent polypropylene film (made by Riken Technos Co., Ltd.) with a thickness of 70 μm using a transparent ink for printing (trade name “Lamister” made by Toyo Ink Co., Ltd.), and acrylic on it. A heat sealing agent composed of resin / polyester resin / vinyl acetate resin was gravure coated to obtain a transparent olefin single layer film. Moreover, the two-component urethane type primer resin containing a silica powder was gravure-coated on the non-printing surface, and the polypropylene single layer film with a primer layer was obtained.

  The printed surface of the transparent polypropylene single layer film and one side of a separately prepared 50 μm thick acrylic film (trade name “HBS006”, manufactured by Mitsubishi Rayon Co., Ltd.) are laminated by heat laminating and transparent polypropylene / transparent An acrylic laminated film was obtained.

       The aluminum foil surface of the colored polypropylene / aluminum foil laminate film and the polypropylene surface of the transparent polypropylene / transparent acrylic laminate film are each via a two-component urethane-based dry laminate adhesive (manufactured by Toyo Morton Co., Ltd.). Lamination was performed by dry lamination adhesion to obtain a metallic decorative sheet.

<Comparative Example 1>
A metallic decorative sheet was obtained in the same manner as in Example 1 except that the layer constitution was composed of a colored polypropylene film layer / aluminum foil layer / polyester film layer.

<Performance comparison>
The metallic decorative sheets of Examples 1, 2, 3 and Comparative Example 1 produced as described above were subjected to a weather resistance test with a metal weather under predetermined conditions, and the color difference was measured according to JIS Z8730. Changes and interlayer adhesion were visually evaluated as ◯ Δ ×. The results are shown in Table 1.

  The metal-like decorative sheet of the present invention has a high design that activates metallic luster by using a metal foil, and by using an acrylic resin film on the surface layer, it can withstand use for exterior applications. be able to. Conventionally, painted products have been used as metallic surface materials for exterior applications such as entrance doors and terraces. However, the metallic decorative sheet of the present invention can sufficiently withstand exterior applications such as entrance doors and terraces. Can do.

It is explanatory drawing which shows the structure of the cross section of Example 1 of the metallic tone decorative sheet of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Metal foil 2 ... Dry laminate adhesive 3 ... Primer layer 4 ... Transparent olefin resin film 5 ... Transparent solid ink layer 6 ... Adhesive 7 ... Transparent acrylic resin film 8 ... Dry laminate adhesive 9 ... Thermoplastic resin layer

Claims (3)

  A metallic decorative sheet comprising a transparent acrylic resin film laminated on a surface of a metal foil with a dry laminate adhesive.   Metallic makeup characterized by laminating a transparent olefin resin film on the surface of a metal foil via a dry laminate adhesive and further laminating a transparent acrylic resin film on the surface via an adhesive Sheet.   3. The metallic decorative sheet according to claim 1, wherein a colored thermoplastic resin film is laminated on the back surface of the metal foil via a dry laminate adhesive.

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