JPS63183899A - Transfer foil - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention is applicable to electrical products, insulating materials for electronic devices, electromagnetic shielding materials, ceramic substrates, machine tools, construction materials, etc., which have wear resistance, corrosion resistance, rust prevention, etc. Regarding transfer foils used for transferring to articles that require Regarding the transfer foil.

[Prior Art] Conventionally, transfer foils have been coated with a base film having a thickness of, for example, about 9 to 10 mm thick, either directly or through a GL type agent layer.
It is known that at least a protective resin layer, a printing layer, a metal vapor deposition layer, and an adhesive layer are sequentially formed.

However, the above-mentioned transfer foil does not cover the surface of the transfer layer formed on the surface of the object to be transferred. f
Because it is a resin layer, the surface of the object to be transferred has poor abrasion resistance, and the thickness is also a thin layer of about 1 to 21 cm.
There were also problems such as it was impossible to expect complete anti-corrosion and anti-rust properties by blocking oxygen etc.

[Object of the Invention] In view of the above-mentioned conventional problems, the present invention has extremely good properties,
That is, the object of the present invention is to provide a transfer foil that allows a transparent inorganic compound layer with significantly improved wear resistance, corrosion resistance, rust prevention, etc. to be formed on the surface of an object to be transferred.

[Structure of the Invention] That is, the present invention provides at least a transparent inorganic compound layer, a primer coat layer, a printing layer, a brimer coat layer, a full-flexure vapor deposition layer,
The present invention relates to a transparent inorganic compound transfer foil characterized by sequentially forming ui adhesive layers.

That is, in the transparent inorganic compound transfer foil of the present invention, by using a ceramic layer in place of at least the protective resin layer of the conventional transfer foil, extremely good properties such as abrasion resistance, corrosion resistance, rust prevention, etc. are significantly improved. This is a completed transfer foil in which a transparent inorganic compound layer can be formed on the surface of an object to be transferred.

That is, the present invention provides at least a transparent inorganic compound layer (3), a primer coat layer (0, a printing layer (5), a primer coat layer) on L of the base film (1) directly or via a release agent layer (2). (6), metal vapor deposition layer (7), and 11 adhesive layers (8) are sequentially formed to create a transparent material with extremely good properties, such as abrasion resistance, corrosion resistance, and rust resistance. This makes it possible to provide a transfer foil that can be formed on the surface of an object to be transferred, which is an inorganic compound layer.

As the base film (1) in the transfer foil of the present invention, any material can be used as long as it has sufficient self-retention properties, such as polyester, polyamide, polyamideimide, polyethylene, polypropylene, cellulose acetate, polycarbonate, and polyvinyl chloride. , resins such as fluororesins, film-like materials or sheet-like materials such as cellophane paper and glassine paper, release paper or release films, and the like are used as appropriate. Especially the base film (1)
It is a film-like material of the above-mentioned resins with a thickness of 6 to 25 μm.
It is preferable to use a material of about
74), on the opposite side of the plastic film to the side on which the transfer layer is provided, a thin film 1 of an inorganic material such as oxides such as 5iO1Sin, Ti0z, ZnO, ^1203, nitrides such as TiN, Tic, etc. It is also preferable to use a hot-stake-resistant material provided with a thin film of about 6 to 100 nm of metal such as carbide, carbon, AI, Ni, Cr, Ti, or Ni-Cr alloy.

In addition, if the peelability between the base film (1) and the transparent inorganic compound layer (3) is not good, apply paraffin wax, silicone, fluororesin, surfactant, etc.
! ! ! An agent layer (2) may be formed in advance.

The transparent inorganic compound layer (co) of the transfer foil of the present invention is formed by vapor deposition on the base film (1) directly or via the stamping agent layer (2) by a conventional method. Examples of the transparent inorganic compound material constituting the transparent inorganic compound layer (3) include aluminum oxide, titanium oxide, silicon oxide, zirconium oxide, aluminum nitride, titanium nitride, :U
A thin film of zirconium oxide, magnesium fluoride, tin oxide, bismuth oxide, f&zinc oxide, or a mixture thereof is used, and the thickness thereof is preferably 500 nm or less.

The transparency is preferably 60% or more expressed as the average value of the light transmittance in the visible light band.

Such a transparent inorganic compound layer (co) may be formed by vacuum deposition, physical vapor deposition (PVD) such as sputtering or ion plating, or direct thin film formation such as chemical vapor deposition (CVO), or metal or metal. A method of forming a thin film of an organic or inorganic compound and then forming a thin film of a compound such as an oxide through a reaction such as oxidation or hydrolysis may be used as appropriate.

The primer coat layer (4) of the transfer foil of the present invention is formed by coating on the transparent inorganic compound layer (3) by a conventional method. As the coating material constituting the primer coat layer (4), any of thermoplastic resin, thermosetting resin, electron beam curable resin, ultraviolet curable resin, and ultraviolet curable resin can be used, and siloxane-based primer coat agents, i.e. chemical components consisting of 5i-0-3ijO (or networks) or basically based on 5i-0-3i chains (or networks) with some modification or forming psv. 2. Commonly used materials for coating and forming primer coat layers include acrylic resins, vinyl chloride-vinyl acetate copolymers, polyvinyl butyral,
Polycarbonate, nitrocellulose.

Cellulose acetate, urethane resin, urea resin,
Melamine resin, urea-melamine resin.

Epoxy resins, alkyd resins, aminoalkyd resins, rosin-modified maleic acid resins, and the like are preferably used alone or in mixtures.

Formation of the primer coat layer is carried out by applying the organic solvent solution, aqueous solution, etc. of the resin for forming the primer coat layer using a roll coating method, a gravure coating method, or a coating method.
Apply by normal coating methods such as sifting method and spray coach ink method, and dry (thermosetting resin,
In the case of electron beam curable resins, ultraviolet ray curable resins, etc., this is done by curing).

There is no limit to the thickness, but it is usually in the range of about 0.3 to 3 μs, preferably in the range of about 0.5 to 2 μs.

The printing layer (5) of the transfer foil of the present invention is formed by coating L of the primer coat layer (4) by using the following method. Ordinary printing ink can be used as the ink for forming the printing layer (5). Alternatively, preferable alternative inks include those using cellulose, metamethylcellulose, acrylic, vinyl acetate, etc. alone or as a mixture as a binder and vapor-deposited metal powder as a pigment. Double-sided colorless or colored resin'! It is a two to three layer laminated metal powder coated with a film and is manufactured and sold by Oike Kogyo Co., Ltd. under the trade name LG or LG. Vapor-deposited metal powder has excellent metallic luster.

Moreover, there are products that are colored with various colors due to the resin coating, and because the particle size of the metal powder is also various, it is possible to print sharp patterns. The printing layer is formed by printing one or more colors using these metal powder-containing inks by a method such as screen printing, auto screen printing, or gravure printing.

The primer coat layer (6) of the transfer foil of the present invention includes the primer coat layer (4) and the printing layer (5).
) is coated and formed by a conventional method. As the coating material constituting the primer coat layer (6), those listed for the primer coat layer (4) are used, and it may be the same or different from that used for the primer coat layer (4). Good too.

The metal a deposited layer (7) of the transfer foil of the present invention is formed by a known vacuum deposition method on the primer coat layer (6).
Qll of ordinary metals (including alloys, the same applies hereinafter) using sputtering method, ion plating method, etc. Depending on the J forming method, for example, zinc, aluminum, gallium, indium, tin, nickel.

Silver, gold, copper, silicon, chromium, titanium, platinum, palladium, etc., which can be deposited alone or in a mixture or alloy, are deposited to a thickness of about 10 to 100 ns. If the thickness is less than about 1 ns, there is almost no metallic luster and there is no value in providing a metal vapor deposited layer, and even if it is formed to a thickness of about 100 nm or more, there is no change in the metallic luster and it is not economical. The vapor deposited layer may not be a single layer, but may be multiple layers, and in that case, the type of metal may be changed for each layer, and the thickness of the metal vapor film located on the surface side after transfer should be kept to about 3 On- or less. A layer of interference 81g made of a transparent resin or a transparent inorganic metal compound may be interposed between the inner layer and the metal vapor deposited on the inner side to produce an interference iris color.

The adhesive for forming the adhesive R(8) of the transfer foil of the present invention is required to have excellent adhesion to the metal vapor deposited layer and the object to be transferred. Adhesives that meet these requirements include, for example, emulsion adhesives such as acrylic, vinyl acetate, vinyl chloride, polyethylene, styrene-butadiene, etc. alone or in blends, ethylene-vinyl acetate, and chlorinated polypropylene.

Vinyl chloride-vinyl acetate type, acrylic type, acrylic-vinyl chloride-vinyl acetate type, phenol type.

Organic solvent type adhesives such as xylene type 1 petroleum resin type, urea type, melamine type, unsaturated polyester type, alkyd type, epoxy type, urethane type, silicone type, and furan type may be used alone or in a blend. The adhesive layer (8) is formed by applying an emulsion of these adhesives or an organic solvent solution by a conventional coating method such as a roll coating method, a gravure coating method, a riha-scotti puffer method, or a spray coating method, and then drying it. be exposed. The thickness of the adhesive layer is usually selected from the range of 0.5 to 3 pM, more preferably from the range of 0.8 to 2 pM. If the thickness of the adhesive is less than 0.5 μs, sufficient transfer strength cannot be obtained, which is not preferable. On the other hand, if it exceeds 3-, the metal vapor deposited layer deforms and becomes white due to the fluidization of the adhesive layer during transfer, resulting in a decrease in metal luster and an undesirable image on the object to be transferred, which becomes unclear.

In the present invention, a curable adhesive such as a phenolic resin,
Xylene resin system 1 Right oil resin system, urea resin system, melamine resin system, unsaturated polyester resin system, alkyd resin system,
Thermosetting adhesives such as epoxy resins, urethane resins, silicone resins, and furan resins, electron beam curable adhesives, and ultraviolet ray curable adhesives are applied using conventional methods and applied at relatively low temperatures. In the coating film obtained by drying, an adhesive layer is used in which the glazing reaction due to heating or the like has not proceeded or has not proceeded sufficiently.

Next, the present invention will be explained with reference to Examples.

[Examples] Example 1 A solvent solution mainly consisting of paraffin wax and ester wax was applied onto a 12-thick polyethylene terephthalate film and dried to form an A15 agent layer with a thickness of 0.5 μs. Then lx, 10 on the surface of the GL agent layer.
- A1203 in a copper crucible in an oxygen atmosphere of 4 torr
irradiated with an electron beam and heated and melted to a colorless and transparent product with a thickness of 10 On-! A transparent inorganic compound layer of 20 units was deposited. Next, a solvent solution of 1lE903:l (manufactured by Shin-Etsu Chemical Co., Ltd.) in a silane coupling agent was applied onto the surface of the transparent inorganic compound layer and dried to form a 0.4-thick primer coat layer. Then, a pattern was gravure printed on the surface of the brimer coat layer using a conventional gravure printing ink to form a printed layer. Then, a solvent solution of BE90 (manufactured by Shin-Etsu Chemical Co., Ltd.) as a silane coupling agent was applied onto the surface of the printed layer and dried to form a 0.4-thick brimer coat layer. Then, on the surface of the primer coat layer, A1 having a metallic luster with a thickness of 6 on- is coated by a conventional method.
27 layers of metal were deposited. Then, on the surface of the metal vapor deposited layer, an uncured thermosetting adhesive layer having a thickness of 3 mm and mainly composed of a soybean oil-modified alkyd resin-based kidney resin melamine resin was formed to obtain a transfer foil of the present invention.

[Effects of the Invention] The transfer foil obtained in Example 1 was used to transfer onto the front panel surface of an electrical product, and then heated at 180° C. for 30 minutes to harden the thermosetting adhesive layer.

The metal vapor deposited layer and pattern printing layer transferred onto the front panel surface are extremely beautiful, and the surface has wear resistance, corrosion resistance, and rust prevention properties, so the surface will remain unchanged for a long time. Mirror surface 41! :L.

No rust or discoloration was observed in the metal vapor deposited layer or the pattern printing layer.

[Brief explanation of the drawing]

1st U! ! U is a sectional view showing the main structure of the transfer foil of the present invention. (Symbols in drawings) (I) Two base films (2) n GL type agent layer (3): Transparent inorganic compound layer (4) Nib rimer coat layer (5): Printing layer (6) Nib rimer coat layer (7) :Metal deposited layer (8):Adhesive layer

Claims (1)

[Claims] 1. Directly or through a release agent layer on the base film,
A transfer foil comprising at least a transparent inorganic compound layer, a primer coat layer, a printing layer, a primer coat layer, a metal vapor deposition layer, and an adhesive layer formed in this order.