JP2577934B2 - Sticking sheet - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a sticking sheet, and more specifically, an embossable stickable surface of various articles such as plywood, decorative boards, furniture, building materials, office equipment, and home appliances. The present invention relates to a sticking sheet having a surface.

[Prior Art] Conventionally, a sticking sheet having a metallic luster of this type is, for example, a polyester having a surface subjected to a hairline processing as a material used for various surface cosmetics such as furniture, building materials and office equipment. There is a film in which a thin film of a metal such as aluminum is deposited on the back surface of a film.

Further, a film in which a metal such as aluminum is vapor-deposited on the back surface of a film whose surface is embossed has been proposed.

However, in the case of the former hairline processing, the hairline is a method of scratching the surface of the polyester film with sandpaper or the like, so that a delicate and specific design or the like cannot be expressed.

Further, in the case of using the latter embossed film, there is also a problem that a metal thin film is vapor-deposited on a completely non-smooth rear surface, so that uneven vapor deposition occurs and it is difficult to exhibit a sufficient and beautiful metallic luster.

Furthermore, since the former and the latter both use a transparent film such as a polyester film as the base material, it is difficult to obtain a material having a sufficient concealing property with a normal metal vapor-deposited layer, so that the thickness of the metal vapor-deposited layer is reduced. There is also a problem that the thickness needs to be set to be thicker and the economic efficiency and the mass productivity are inferior.

Furthermore, both the former and the latter are extremely flammable due to the use of a film on which a metal such as aluminum is vapor-deposited.

[Object of the Invention] In view of the above-mentioned conventional problems, the present invention does not allow the adhesive sheet of the present invention to express a delicate and specific design of a hairline method film whose surface is scratched with sandpaper or the like. In addition, in the case of using an embossed film, a metal thin film is deposited on the back surface that is not completely smooth, so that uneven deposition is caused and a sufficient and beautiful metallic luster is difficult to be exhibited. It is difficult to obtain a material having sufficient concealing property with the thickness of the ordinary metal deposition layer because it uses a thin film as the base material, and it is necessary to set the thickness of the metal deposition layer to be thicker. Solving all problems, expressing delicate and specific patterns, exhibiting beautiful metallic luster without unevenness in deposition, It is an object of the present invention to provide a sticking sheet which has a sufficient concealing property even at a thickness of a metal vapor deposition layer, and is hardly burnable and does not lose its glittering property due to oxidative corrosion.

[Constitution of the Invention] The present invention is characterized in that an alloy deposited layer and a protective resin layer are sequentially formed on the surface of a substrate made of a nonflammable or flame-retardant material, and then embossed from the protective resin layer side. It relates to a sticking sheet.

That is, for example, a thin film of a metal such as aluminum was vapor-deposited on the back surface of a polyester film which had been subjected to a hairline process on the surface, or embossed on the surface, which was used for a conventional adhesive sheet having a metallic luster of this kind. In the present invention, instead of depositing a metal such as aluminum on the back of the film, an alloy deposited layer and a protective resin layer are sequentially formed on the surface of a substrate made of a nonflammable or flame-retardant material, and then the protective resin layer is formed. Since embossing is performed from the side, it is possible to solve all conventional problems and express delicate and specific designs, etc., to exhibit beautiful metallic luster without unevenness in vapor deposition, normal Completion of a sticking sheet that has sufficient concealing properties even at the thickness of the metal deposition layer, is hard to burn, and does not lose its glitter due to oxidative corrosion Those were.

That is, according to the present invention, an alloy deposited layer (2) and a protective resin layer (3) are sequentially formed on the surface of a substrate (1) made of a nonflammable or flame-retardant material, and then embossed from the protective resin layer (3) side. By processing, it has extremely good properties, that is, it expresses delicate and specific patterns, etc., exhibits beautiful metallic luster without unevenness in vapor deposition, and is sufficiently concealed even with ordinary metal vapor deposited layer thickness The present invention has made it possible to provide a sticking sheet that has adhesive properties, is hard to burn, and does not lose its glitter due to oxidative corrosion.

As the substrate (1) made of a non-combustible or flame-retardant material in the adhesive sheet of the present invention, any substrate having a certain degree of self-holding properties can be used. Examples thereof include ammonium-containing inorganic salts and phosphorus-containing inorganic salts. Non-flammable paper, flame-retardant paper or non-woven fabric treated with a flame retardant such as nitrogen compound, antimony tri-halogen, boron compound, halogen compound or the like, inorganic fiber paper or non-woven fabric such as glass fiber paper or asbestos paper, aromatic polyamide fiber , Chlorinated polypropylene fiber, tetrafluoroethylene-ethylene copolymer fiber,
Difficult to exhibit high flame retardancy such as polyfluoroethylene fiber, polycarbonate fiber, chlorinated polyethylene fiber, polyvinyl chloride fiber, polyimide fiber, polychlorotrifluoroethylene fiber, polyvinylidene fluoride fiber, polyvinyl fluoride fiber, etc. Organic fiber paper or nonwoven fabric made of flammable organic fibers, flame-resistant film synthetic paper treated with a flame retardant such as ammonium salt-containing inorganic salt, phosphorus-containing nitrogen compound, antimony trioxide-halogen, boron compound, halogen compound, etc. Flame retardant synthetic paper, aromatic polyamide resin, chlorinated polypropylene resin, tetrafluoroethylene-ethylene copolymer, polyfluoroethylene resin, polycarbonate resin,
It consists of highly flame-retardant resins such as chlorinated polyethylene resin, polyvinyl chloride resin, polyimide resin, polychlorotrifluoroethylene resin, polyvinylidene fluoride resin, polyvinyl fluoride resin, etc. A paper-like material such as a flame-proof film synthetic paper or a flame-retardant film synthetic paper, or a film-like or sheet-like material is appropriately used.

The thickness of the substrate (1) made of a nonflammable or flame-retardant material is not particularly limited.
It is preferable to use a material having a thickness of about μm, and in particular, a material having a thickness of 25 to 100 μm is preferable in terms of durability, handleability, economy, and the like.

The alloy vapor deposition layer (2) of the sticking sheet of the present invention includes, for example, silver-copper alloy, silver-aluminum-copper alloy, silver-indium alloy, silver-tin alloy, silver-zinc alloy, silver-cadmium alloy, silver- Antimony alloy, silver-gold alloy, silver-platinum alloy,
Silver-copper-zinc alloy, silver-palladium alloy, silver-nickel alloy, silver-gold-nickel alloy, gold-platinum alloy, gold-silver-
Copper alloy, gold-silver-palladium alloy, gold-silver-copper-palladium alloy, nickel-chromium alloy, iron-nickel-chromium alloy, platinum-silver-gold alloy, titanium-chromium-iron-molybdenum alloy, copper-aluminum Alloys, alloys such as copper-tin-titanium alloy, copper-tin-lead-zinc alloy, copper-tin-lead-zinc-aluminum-iron-manganese alloy, stainless steel, hastelloy, etc. It has been deposited. The thickness of the alloy deposited layer (2) depends on the type of the alloy, but is usually selected from the range of about 20 to 100 nm. For example, in the case of stainless steel, if the thickness is less than 20 nm, the metallic luster is not sufficient, while if it is more than 100 nm, the metallic luster does not change, which is inferior in economical efficiency.

In the present specification, the term “evaporation” means that a thin film is formed by a normal alloy thin film formation method such as a vacuum evaporation method, a sputtering method, and an ion plating method.

The alloy vapor-deposited layer includes all of the alloy thin films formed by these alloy thin film forming methods. The alloy vapor deposition layer (2) may be formed on a temporary support and then transferred onto a substrate via an adhesive.

Further, depending on the type of the base material (1) made of the non-combustible or flame-retardant material, an intermediate resin layer (5) is formed for the purpose of improving the surface state and the suitability for vapor deposition.
May be formed via the alloy vapor deposition layer (2).

As the resin paint for forming the intermediate resin layer (5),
It is necessary that the material has suitability for vapor deposition, has adhesion to the substrate (1) made of a nonflammable or flame-retardant material, and can improve or control glossiness. Assuming that all of them can be satisfied, the resin coating for forming the intermediate resin layer (5) may be, for example, any one of a thermoplastic resin, a thermosetting resin, an electron beam-curable resin, and an ultraviolet-curable resin. Also used are, for example, aromatic polyamide resin, chlorinated polypropylene resin, tetrafluoroethylene-ethylene copolymer, polyfluoroethylene resin, polycarbonate resin, chlorinated polyethylene resin, polyvinyl chloride resin, polyimide resin Resins, resins with high flame retardance, such as resins, polychlorotrifluoroethylene resins, polyvinylidene fluoride resins, polyvinyl fluoride resins, acrylic resins, styrene resins,
Acrylic-styrene copolymer, vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer, polyamide resin, polyvinyl-butyral copolymer, nitrocellulose resin, cellulose acetate resin, urethane resin , Urea resin, melamine resin, urea-melamine resin, epoxy resin, alkyd resin, aminoalkyd resin, rosin-modified maleic resin, etc. ammonium salt type inorganic salt, phosphorous nitrogen compound, antimony trioxide -A resin paint comprising a flame retardant such as a halogen, a boron compound or a halogen compound alone or a mixture thereof is preferably used.

The intermediate resin layer (5) is formed by applying a resin coating for forming the intermediate resin layer (5) by a normal coating method such as a roll coating method, a gravure coating method, a reverse coating method, and a spray coating method. It is performed by drying (curing in the case of a thermosetting resin, an electron beam curable resin, an ultraviolet curable resin, or the like).

The thickness of the intermediate resin layer (5) is not particularly limited, but is usually 0.2
To 10 μm, more preferably 0.5 to 5 μm. If the thickness is less than 0.2 μm, the surface of the substrate (1) made of a non-combustible or flame-retardant material cannot be completely covered, and an intermediate resin layer (5) is provided for improving the suitability for vapor deposition and imparting gloss. The effect cannot be sufficiently exhibited, and the value of forming the intermediate resin layer (5) is not worthwhile. On the other hand, if it exceeds 10 μm, the intermediate resin layer (5) is too thick and impairs the feeling, and the drying speed is slow and the efficiency is low. is there.

In the sticking sheet of the present invention, since the alloy deposited layer (2) itself has low mechanical strength and is easily damaged by friction, the protective resin is provided on the surface of the alloy deposited layer (2) for the purpose of protecting the alloy deposited layer. The layer (3) is provided. The thickness of the holding resin layer (3) is not particularly limited, but is usually appropriately selected from the range of 1 to 10 μm.

As the resin coating for forming the protective resin layer (3), for example, a coating composed of any of a thermoplastic resin, a thermosetting resin, an electron beam-curable resin, and an ultraviolet-curable resin is used. Resin, chlorinated polypropylene resin, tetrafluoroethylene-ethylene copolymer, polyfluoroethylene resin, polycarbonate resin, chlorinated polyethylene resin, polyvinyl chloride resin, polyimide resin, polychlorotrifluoroethylene Resin, polyvinylidene fluoride resin, resin showing high flame retardance such as polyvinyl fluoride resin, acrylic resin, styrene resin, acryl-styrene copolymer, vinyl chloride resin, vinyl acetate Resin,
Vinyl chloride-vinyl acetate copolymer, polyamide resin,
Polyvinyl-butyral copolymer, nitrocellulose resin, cellulose acetate resin, urethane resin,
Urea-based resins, melamine-based resins, urea-based resins, melamine-based resins, urea-melamine-based resins, epoxy-based resins, alkyd-based resins, aminoalkyd-based resins, rosin-modified maleic acid resins, etc. Phosphorus nitrogen compound, antimony trioxide-halogen, boron compound,
A resin coating composed of a single substance or a mixture to which a flame retardant such as a halogen compound is added is preferably used.

The protective resin layer (3) is formed by applying a resin coating for forming the protective resin layer (3) by a normal coating method such as a roll coating method, a gravure coating method, a reverse coating method, and a spray coating method. It is performed by drying (curing in the case of a thermosetting resin, an electron beam curable resin, an ultraviolet curable resin, or the like).

 Next, the present invention will be described with reference to examples.

Example 1 Example 1 A nickel-chromium alloy vapor-deposited layer having a thickness of 60 nm on a surface of a polybenzimidazole-based nonwoven fabric synthetic paper having a basis weight of about 80 g / m ² by evaporating a nickel-chromium alloy by electron beam heating. Forming a two-component polyester urethane resin
A coating solution comprising 50 parts (parts by weight, hereinafter the same), 5 parts of tricresyl phosphate and 45 parts of methyl ethyl ketone is applied and dried to form a protective resin layer of about 2 μm, and then embossed to form an embossed pattern. A sticking sheet of the present invention was obtained.

Example 2 A release agent coating solution consisting of 5 parts of dimethylpolysiloxane and 95 parts of toluene was coated on a polypropylene film having a thickness of 30 μm and dried to form a release layer having a thickness of about 0.1 μm. A coating liquid consisting of 50 parts of urethane resin, 5 parts of tricresyl phosphate, and 45 parts of methyl ethyl ketone is applied and dried to form a protective resin layer of about 2 μm, and then a silver-palladium alloy is sputter-deposited by a sputtering method to a thickness of about 2 μm. A transfer foil was obtained by forming an 80 nm silver-palladium alloy deposited layer. Next, a ceramic sheet having a basis weight of about 150 g / m ² was applied on the silver-palladium alloy vapor-deposited layer via an adhesive coating liquid consisting of 50 parts of nitrile butadiene rubber, 10 parts of phenol resin, 5 parts of tricresyl phosphate, and 35 parts of toluene. After adhering (made by Onoda Cement Co., Ltd.), the polypropylene film was peeled off, and then embossed to form an embossed pattern to obtain a sticking sheet of the present invention.

Comparative Example Aluminum was vacuum-deposited directly on the back surface of a 50 μm-thick polyethylene film embossed on the front surface to 60 nm.
Of a two-part polyester urethane resin and 45 parts of methyl ethyl ketone is applied and dried to form a protective resin layer of about 2 μm, and an embossed pattern is formed to form an embossed pattern. A wearing sheet was obtained.

[Effects of the Invention] The adhesive sheets obtained in Example 1 and Example had excellent glitter and a delicate and beautiful emboss pattern. Other physical properties are as follows.

Heat resistance: JIS K 6328 No abnormality Flameproof: JIS L 1091 A2 method (45 ° Meckel burner method) Residual dust time 0 seconds Residual flame time 0 seconds Carbonized area 10 cm ² or less The adhesive sheet of Comparative Example 1 was embossed. Since aluminum metal is vapor-deposited on ordinary polyethylene film, metal light gradually disappears even at room temperature and burns easily, and its use is limited and industrially poor.

[Brief description of the drawings]

FIGS. 1 (A) and 1 (B) are cross-sectional views showing the basic structure of the sticking sheet of the present invention, and FIGS. 2 (A) and 2 (B).
FIG. 4 is a cross-sectional view showing another embodiment of the sticking sheet of the present invention. (Signs in the figure) (1): Substrate made of non-combustible or flame-retardant material (2): Alloy deposited layer (3): Protective resin layer (4): Embossed surface (5): Intermediate resin layer (5)

Claims (1)

(57) [Claims] 1. A sticking sheet comprising an alloy deposited layer and a protective resin layer sequentially formed on a surface of a substrate made of a nonflammable or flame-retardant material, and then embossed from the protective resin layer side. .