JPS63268684A - Transfer foil for heat-and flame-resistant fabric - Google Patents

Abstract

PURPOSE:To enable metallization of a fabric without damaging the lightness in weight, stretching properties, feeling or the like of the fabric, by sequentially providing at least a vapor-deposited metallic layer, a primer coat layer and an adhesive layer on a base film, either directly or with a release agent layer provided between the base film and the metallic layer. CONSTITUTION:A base film 1 may be formed of a polyester, a polyamide or the like. When the base film 1 is poor in releasability from a vapor-deposited metallic layer 3, a release agent layer 2 is provided on the film by applying a paraffin wax, silicone or the like. The vapor-deposited metallic layer 3 is provided by vapor depositing zinc or aluminum by the usual method of providing a metallic thin film. A primer coat layer 4 is provided by using a thermoplastic resin, a thermosetting resin or the like, whereas an adhesive layer 5 is provided by using an acrylic adhesive, a vinyl acetate adhesive or the like excellent in adhesion to the primer coat layer and a fabric, resistant to heat and having a self-extinguishing property. Thus, a transfer foil for a fabric is obtained which does not spoil the lightness in weight, stretching property or feeling of the fabric.

Description

[Detailed Description of the Invention] [Technical Field 1] The present invention relates to a transfer foil for heat-resistant and flame-retardant springs, and more specifically,
without impairing the properties of the heat-resistant and flame-retardant fabric that is the transfer target.
This invention relates to a heat-resistant and flame-retardant transfer foil for springs, which has significantly improved heat resistance, flame retardance, etc., and which makes it possible to easily apply a metallic finish to the surface of raw blood by heat pressing.

[Prior Art] Traditionally, heat-resistant and flame-retardant fabrics that have been subjected to metallic processing include, for example, metal vapor deposition, in which a metal vapor deposition layer is formed directly or via a primer coat layer on a plastic film with a thickness of approximately 9 to 1814 mm. There are those in which a film is attached to the surface of raw cloth via an adhesive layer, and those in which metal powder base is applied to the surface of raw cloth.

■ It is known that a metal vapor-deposited layer is formed directly on the surface of raw cloth.

However, heat-resistant and flame-retardant fabrics that have undergone metallic processing as described above each have their own problems. For example, the fabric in type (■) has good brightness, but it has a hard texture because it uses a plastic film, and it has a hard texture due to the elasticity of raw fabric. Because it does not conform to the nature of the wearer, it is uncomfortable to wear when used in clothing, etc., and if the metallized film bonded to the surface breaks, it is difficult to repair. In addition, it is relatively easy to repair baldness of the paint film with type (■), but it has poor shine, is heavy, requires thick coating to provide surface resistance, and has a poor texture. There are problems such as it becomes hard and there is a limit to its elasticity. In addition, it is the lightest among the ■ items,
Although it maintains the texture and elasticity of raw cloth,
It has problems such as poor brightness and extremely low surface resistance, making it impractical for practical use.

[Object of the Invention] In view of the above-mentioned conventional problems, the present invention provides a heat-resistant material that enables metallic processing to be applied to raw cloth without impairing its lightness, elasticity, texture, etc.

An object of the present invention is to provide a heat-resistant and flame-retardant spring transfer foil with significantly improved flame retardancy.

[Structure of the Invention] That is, the present invention provides a heat-resistant and difficult-to-understand film, characterized in that at least a metal vapor deposition layer, a primer coat layer, and an adhesive layer are sequentially formed on a base film directly or via a release agent layer. This invention relates to a transfer foil for spring use.

That is, in the heat-resistant and flame-retardant spring transfer foil of the present invention, a specific primer coat layer is used between at least the metal vapor deposited layer and the adhesive layer of the conventional transfer foil, and a specific adhesive is used in the adhesive layer. As a result, we have completed a heat-resistant and flame-retardant spring transfer foil that has significantly improved heat resistance and flame retardancy, making it possible to apply metallic processing without sacrificing the lightness, elasticity, texture, etc. of raw fabric. It is something.

That is, in the present invention, a metal vapor deposition layer (3), a primer coat layer (4), and an adhesive layer (5) are sequentially formed on a base film (1) directly or via a release agent layer (2). As a result, we provide a heat-resistant and flame-retardant spring transfer foil that has significantly improved heat resistance and flame retardancy, making it possible to apply metallic processing without impairing the lightness, elasticity, texture, etc. of raw fabric. This made it possible to do so.

The base film (
As 1), any material can be used as long as it has sufficient self-retention properties, such as polyester, polyamide, polyamideimide, polyethylene, polypropylene,
Resins such as cellulose acetate, polycarbonate, polyvinyl chloride, and fluororesins, film-like materials or sheet-like materials such as cellophane paper and glassine paper, and release paper or release films are used as appropriate. In particular, as the base film (1), a film-like material of the above-mentioned resins with a thickness of about 6 to 100 μs is used to continuously produce large quantities of heat-resistant and flame-retardant spring transfer foil without wrinkles or cracks. This is preferred from the viewpoint of ease of production.

In addition, if the base film (1) does not have good releasability from the metal vapor deposited layer (3), for example, apply paraffin wax, silicone, fluorine resin, surfactant, etc. to form a release agent layer (2). It may be formed in advance.

The metal vapor deposition layer (3) of the transfer foil for heat-resistant and flame-retardant springs of the present invention can be formed by a known vacuum vapor deposition method, sputtering method, etc. directly on the base film (1) or via the release agent layer (2). For example, zinc, aluminum, gallium, indium, tin,
Nickel, silver, gold, copper, silicon, chromium, titanium, platinum,
A single substance, a mixture, an alloy, etc., which can be vapor-deposited, such as palladium, is formed by vapor deposition to a thickness of about 10 to 100 nm. If the thickness is less than Inn-, there is almost no metallic luster and there is no value in providing a metal vapor deposited layer.
- It is not economical because there is no change in the metallic luster even if the metal is formed in excess of a certain amount.In addition, the metal vapor deposited layer may not be a single layer, but may be made of multiple layers, and in that case, the type of metal may be changed for each layer.
Further, in that case, the surface resistance of the metal vapor deposited layer may be improved by making the metal vapor deposited layer located on the surface side after transfer a metal vapor deposited layer made of an inorganic metal compound.

Examples of the inorganic compound material constituting the inorganic compound layer include aluminum oxide, titanium oxide, silicon oxide, zirconium oxide, aluminum nitride, titanium nitride, zirconium nitride, magnesium fluoride, tin oxide, bismuth oxide,
1811 such as zinc sulfide or mixtures thereof
1!2 is used.

The inorganic compound layer can be formed using a physical vapor deposition (PVD) method such as a vacuum evaporation method, a sputtering method, or an ion plating method, or a direct B film formation method such as a chemical vapor deposition (CVO) method, or a metal or an organic or inorganic compound of a metal. A method of forming a thin film 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 for heat-resistant and flame-retardant springs of the present invention is formed by coating on the metal vapor deposited layer (3) by a conventional method. Coating materials constituting the primer coat layer (4) include thermoplastic resins, thermosetting resins,
Any of electron beam curable resins, ultraviolet ray curable resins, and ultraviolet ray curable resins are used, and is composed of a siloxane-based primer coating agent, i.e., 5i-0-3ijl) (or net), or basically st- Sg is a slightly modified chemical component based on 0-3im (or net).
In addition to those used to form a primer coat layer, there are also those used to form a primer coat, such as acrylic resin, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, polycarbonate, nitrocellulose, cellulose acetate, and urethane. Preferably used are resins, urea resins, melamine resins, urea-melamine resins, epoxy resins, alkyd resins, aminoalkyd resins, rosin-modified maleic acid resins, and the like alone or in mixtures. In particular, it is provided for the purpose of improving the adhesion between the gold a-deposited layer and the adhesive layer, and providing stretchability to the alternating layers, and from the viewpoint of stretchability, polyurethane resin is most preferably used as the main component. As polyurethane resins, -liquid layer or two-liquid type ones are known, and in order to exhibit excellent stretchability, the preferable range is If it is less than 10 kg/am'', it is too soft and cannot fully support the deposited layer during expansion and contraction, resulting in loss of glitter. 10 more
If it is over 00kg/cm, it will be too hard and the texture will not be good.
Two or more layers may be used in contact with each other, but in this case, it is preferable to increase the tensile strength value of the layer close to the metal vapor deposited layer (the layer close to the transfer surface) in order to maintain good shine and texture.

Although there is no limit to its thickness, the thickness of the primer coat layer is usually selected from the range of 1 to 50 .mu.s, preferably from the range of 10 to 3.degree. If it is thinner than 1 μs, the brightness of the metal vapor deposited layer will drop significantly due to expansion and contraction, and if it is thicker than 50 μs, the texture will be poor and it is not desirable from an economic point of view. The flame retardant additives used in the present invention include, for example, phosphoric acid esters (tricresyl phosphate, tributyl phosphate, 2-biphenyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, beta-chloroethyl phosphate). Phosphate.

triphenyl phosphate), chlorides (chlorinated paraffin, diphenyl chloride), antimony oxide, etc. can be used.

The primer coat layer is formed by applying an organic solvent solution, aqueous solution, etc. of the resin for forming the primer coat layer by a normal coating method such as a roll coating method, a gravure coating method, a reverse coating method, a spray coating method, etc. Drying (thermosetting resin,
In the case of electron beam curable resins, ultraviolet ray curable resins, etc., this is done by curing).

The adhesive for forming the adhesive layer (5) of the transfer foil for heat-resistant and flame-retardant springs of the present invention is required to have excellent adhesion to the primer coat layer and raw cloth, and is also required to have heat resistance. It is necessary to have both self-extinguishing properties and self-extinguishing properties. Adhesives that meet such requirements include 1, for example, acrylic adhesives,
Vinyl acetate type.

Emulsion adhesives such as vinyl chloride, polyethylene, and styrene-butadiene, either alone or in a blend;
Ethylene-vinyl acetate, chlorinated polypropylene, vinyl chloride-vinyl acetate, acrylic, acrylic-vinyl chloride-vinyl acetate, phenol, xylene, petroleum resin, urea, melamine, unsaturated polyester , alkyd-based, epoxy-based, urethane-based, silicone-based, furan-based, and other organic solvent-based adhesives, used alone or in blends, with flame retardant additives added thereto, if necessary. Particularly preferred is a mixture of a thermoplastic resin, a thermosetting resin, and a flame retardant.8 The blending ratio of the plastic resin and the thermosetting resin is determined by the elasticity of the raw cloth.

In other words, for raw fabrics that stretch well, we increase the thermoplastic content to maintain elasticity and texture even after transfer, and for raw fabrics that do not stretch, we increase the thermosetting content to improve heat resistance and adhesion. can be improved. The TA adhesive layer (5) is coated with an emulsion of these adhesives, an organic solvent solution, or the like by a conventional coating method such as a roll coating method, a gravure coating method, a reverse coating method, or a spray coating method.

This is done by drying. The thickness of the adhesive layer is usually selected from the range of 1 to 50 μm, more preferably from 10 to 30 μs. If the thickness of the adhesive is less than 1 pa, sufficient transfer strength cannot be obtained, which is undesirable.On the other hand, if it exceeds 50 mm, the metal vapor deposited layer will be deformed and whitened due to fluidization of the adhesive layer during transfer, resulting in poor metallic luster. This is undesirable from an economical point of view, as it deteriorates the texture and texture. However, a release paper, a release film, etc. may be temporarily bonded to the adhesive surface for the purpose of preventing blocking.

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

[Example] Example 1 A release agent coating solution consisting of 5 parts of dimethylpolysiloxane and 95 parts of toluene was applied onto a 100-thick polyethylene terephthalate film with a roll coater to a thickness of 0. vacuum evaporated to a thickness of 0.1, and further 100% elongation force value: 10 kg/am”,
A brimer coating solution consisting of 50 parts of a two-component polyester urethane resin with a tensile strength of 600 kg/cs" and an elongation of 900%, 5 parts of tricresyl phosphate, and 45 parts of methyl ethyl ketone was applied to a thickness of 20 mm using a roll coater and dried.
50 parts of nitrile butadiene rubber, 10 parts of phenolic resin
An adhesive coating solution consisting of 5 parts of tricresyl phosphate, 5 parts of toluene, and 35 parts of toluene was applied to a thickness of 20 parts using a roll coater and dried to obtain a heat-resistant and flame-retardant spring transfer foil of the present invention.

[Effects of the Invention] Using the heat-resistant and flame-retardant spring transfer foil obtained in Example 1''C, a knitted fabric containing polybenzimidazole as a main component was applied at a temperature of 180°C, for a time of 3 seconds, and a pressure of 5 kg/c. ■After hot pressing in step 2, the base film was peeled off after adhesion was completed, and a metallic finish was applied to the surface of the knitted fabric.The finally obtained fabric with the metallic finish had excellent brightness,
Moreover, the texture and elasticity of the raw fabric were not impaired in any way. Other physical properties were as follows.

#Thermal resistance: JIS 6328 No abnormality Flame resistance: JIS L 1091 A2 method (45° Metkelbana method) Remaining time: 0 seconds Afterflame time: 0 seconds Carbonized area: 10cm or less Water pressure resistance: JIS L 1092 1000■■ or more

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the basic structure of the transfer foil for heat-resistant and flame-retardant springs of the present invention. (Symbols in drawings) (1) - Base film (2): Release agent layer (3) Dimetal vapor deposited layer (4); Primer coat layer (5): Adhesive layer

Claims (1)

[Claims] 1. A heat-resistant and flame-retardant fabric comprising at least a metal vapor deposited layer, a primer coat layer, and an adhesive layer sequentially formed on a base film either directly or via a release agent layer. Transfer foil.