JPH0636864U - Transfer sheet - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a transfer sheet having an image of high quality with excellent metallic luster and excellent abrasion resistance. [Structure] A release layer is provided on the upper surface of the base film, and a protective resin layer, a metal thin film layer, an adhesive layer, a polyurethane sheet, and a heat-sensitive adhesive layer are sequentially formed on and transferred to the release layer directly or through a high-friction resin layer. Use as a sheet.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transfer sheet having a metallic luster and excellent friction and elasticity.

[0002]

[Prior art]

 Conventionally, as a transfer sheet having a metal deposition layer, a release film, a protective resin layer, a metal thin film layer, and an adhesive layer are sequentially provided on one side of a base film, which are transferred to paper, cloth, plastic, etc. It is used (JP-A-60-244591, JP-A-63-49481, JP-B-59-49919). However, the ornaments such as marks and patches obtained from these have a metallic luster but lack a three-dimensional effect, and the texture of elasticity cannot be obtained at all.

It has also been proposed to bring a urethane sheet into close contact with paper, cloth, plastic film or the like via an adhesive layer to obtain an elastic texture (JP-A-61-2322). However, from the appearance color tone of the processed product obtained from this, there was a problem that metallic luster was not obtained and the image of high-grade feeling was poor.

[0004]

[Problems to be solved by the device]

 A conventional transfer sheet having a metal vapor deposition layer has a poor three-dimensional effect, and it has been difficult to obtain an elastic texture. It is an object of the present invention to provide a transfer sheet which solves such drawbacks, has a high-grade image with excellent metallic luster, and has excellent abrasion resistance. Further, the object of the present invention is to make various characters, shapes, patterns, etc. having the above characteristics as a part of the design by adhering to various material surfaces, clothing such as sportswear, or various marks and patches. Another object is to provide a transfer sheet that can be used to make small items, bags, etc.

[0005]

Means for Solving the Problems The present invention provides a release layer on one surface of a base film, and a protective resin layer, a metal thin film layer, an adhesive layer, a polyurethane sheet directly or through a high friction resin layer on the release layer. And a heat-sensitive adhesive layer in this order, which is a transfer sheet.

The present invention will be described below with reference to FIG. The transfer sheet of the present invention is a release film, a high friction resin layer, a protective resin layer, a metal thin film layer, an adhesive layer, and a polyurethane layer which are sequentially provided on a suitable base film such as a plastic film or paper, for example, a polyester film. It is formed by forming a sheet and a heat-sensitive adhesive layer. The composite sheet using the transfer sheet of the present invention is transferred onto a base material such as paper, cloth, and plastic film as shown in FIG. 2, and the heat-sensitive adhesive layer, the polyurethane sheet, and the adhesive are sequentially adhered to the base material. The structure has a layer, a metal thin film layer, a protective resin layer, a high-friction resin layer provided if necessary, and a release layer. FIG. 4 shows a shape example of partial transfer obtained by heating and cutting along the desired characters, figures, and patterns using the above composite sheet.

Next, the material, characteristics, thickness, etc. of each component will be described.

As the release layer, phospholipid (lecithin), cellulose acetate, wax, fatty acid, fatty acid amide, fatty acid ester, rosin, acrylic resin, silicone, fluorine resin, etc. are used, but the base film is flat. In this case, the thickness is 0.01 to 2 µ, and more preferably 0.5 to 1 µ. In the case of a matte processed film with a small base film and unevenness, or a hairline process, a thicker layer of 1 to 3 μ provides better releasability and easier transfer processing.

The high-friction resin layer, which is provided as necessary, can be often used when it is used for daily rubs such as clothes, bags, and patches, and can be adhered to both the release layer and the protective resin layer. Resins having good properties, that is, having a binder function are selected. From this viewpoint, urethane resin, nylon resin, ester resin and the like are preferable as the resin of the high friction resin layer. The thickness is preferably about 2 to 40 μm, particularly preferably 5 to 20 μm. If it is too thick, the cuttability at the time of partial transfer to letters, figures, or patterns will be poor, and if it is too thin, the three-dimensional effect and abrasion resistance will not be exhibited, and it will be impractical.

A protective resin layer is provided to protect the metal thin film layer. As the resin for the protective resin layer, a thermosetting resin, a thermoplastic resin, or a photocurable resin such as ultraviolet ray having good adhesiveness is used for both the high friction resin layer and the metal thin film layer. Specifically, it can be appropriately selected according to the required properties (mechanical properties, heat resistance, solvent resistance, optical properties, weather resistance, etc.) depending on the type of vapor-deposited metal and the application. For example, acrylic resin, melamine One or more selected from resins, urethane resins, epoxy resins, alkyd resins, cellulosics, polyvinyl chlorides and the like can be used. Generally, the thickness is about 0.2 to 5 μ, more preferably 1 to 3 μ. These resins have good transparency, but they can be colored by adding dyes, pigments or matting agents. Moreover, an iris color or a hologram effect can be imparted by subjecting the surface of the protective resin layer to hologram processing.

The metal thin film layer is necessary to give a metallic luster, and is formed by a conventional metal (including alloy) thin film forming method such as a known vacuum deposition method, sputtering method, or ion plating method. As the metal, aluminum, zinc, tin, gold, silver, nickel, copper, chromium, titanium, indium, platinum or the like can be used. The thickness is usually 10 to 200 mμ. If it is less than 10 mμ, it becomes difficult to obtain a metallic luster, and if it exceeds 200 mμ, it is economically unfavorable and lacks in practicality.

As the adhesive layer, a resin adhesive having good adhesiveness can be used for both the metal thin film layer and the polyurethane sheet. For example, acrylate type, polyester type, synthetic rubber type, epoxy type, polyurethane type, ethylene-vinyl acetate type, polyamide type, polyvinyl chloride, halogenated polyolefin, nitrocellulose and their copolymers are generally used. Can be used. The coating thickness of the adhesive layer is 2 to 100 µ, preferably about 3 to 20 µ.

As the polyurethane sheet, a foamed polyurethane sheet is preferably used in terms of cushioning properties and cutting workability during partial transfer. The thickness of the polyurethane sheet is about 0.2 to 5 mm, and those colored in various hues can be used. If the thickness is less than 0.2 mm, the texture of the present invention with a three-dimensional effect cannot be obtained, and if it exceeds 5.0 mm, the moldability becomes poor. Depending on required characteristics, a foamed polyethylene sheet may be used instead of the foamed polyurethane sheet.

As the heat-sensitive adhesive layer, various known adhesives or hot-mesh sheets that can be adhered by heating can be used. As the adhesive, the same ones as those used for the adhesive layer can be used, and in particular, polyester type, polyurethane type and epoxy type are preferably used. As the hot melt sheet, polyurethane, polyamide, or polyvinyl chloride type is preferably used. The coating thickness of the adhesive layer is selected in the range of 3 to 100 µ, preferably 10 to 30 µ in the case of the adhesive, and 20 to 200 µ, preferably 50 to 100 µ in the hot melt sheet.

The material to be transferred to be transferred may be paper, cloth, rubber, synthetic resin film, wood, or any other material that can be adhered, and has versatility.

As a method of transferring the transfer sheet of the present invention to a transfer target material such as paper, cloth, rubber and synthetic resin film, the following methods can be mentioned.

(1) A transfer material structure including a metal vapor deposition layer after the heat-sensitive adhesive layer side of the transfer sheet of the present invention and the material to be transferred are opposed to each other, hot pressed with a heating roller, and the base film is peeled off Transfer the components to the material to be transferred.

(2) The transfer sheet of the present invention is placed so that the heat-sensitive adhesive layer side of the transfer sheet faces the material to be transferred, and is closely placed on the material to be transferred, and transferred by heat pressing with a heat press or an iron. When a hot-melt sheet is used for the heat-sensitive adhesive layer, a method in which the hot-melt sheet and the material to be transferred are sequentially superposed on the polyurethane sheet side of the transfer sheet of the present invention and heated and pressed can also be appropriately adopted. .

(3) In the method of (2), as one aspect of the heating press, there is a protrusion having characters, figures, patterns, etc. formed on the inner surface portion thereof, and a longer and sharper blade is provided on the outer peripheral edge portion. It is possible to employ a method in which a heating die having a circular-shaped circumferential projection is used and, along with thermocompression bonding, cutting is also performed along the outer peripheral portion at the same time. According to this method, it can be most preferably used for making various marks including characters, figures, patterns, patches, small items, bags, etc., and designing clothing such as sportswear and uniforms.

[Example] A release layer (cellulose acetate resin, thickness 0.5 μ), a high friction resin layer (urethane resin, thickness 10 μ), a protective resin layer were formed on a biaxially stretched polyethylene terephthalate film having a thickness of 25 μ. (Composition of melamine / nitrocellulose / oil dye (Aizenspirone, orange), thickness 2 μ) were applied in this order, and then an aluminum thin film with a thickness of 50 mμ was formed by a vacuum deposition method. An adhesive layer (ester / Coronate L-based adhesive, thickness 10 μm) and a foamed polyurethane sheet (thickness 3 mm) were sequentially applied thereon.

The material to be transferred (artificial leather “Excene”) is bonded to the polyurethane sheet side of the transfer component thus obtained through a heat-sensitive adhesive layer (hot melt sheet “Daiamide” Daicel Hüls, thickness 10 μ). After being laminated so as to face Toray Co., Ltd., the polyethylene terephthalate film was peeled and separated. Next, using a heating die as a heating die having protrusions on the inner surface of which letters and figures are formed and having a longer and sharper blade-shaped circumferential protrusion at the outer peripheral edge, a pressing pressure of 180 kg / cm is used. ^2. Pressing treatment was performed under conditions of heating temperature of 180 ° C. and pressing time of 2 seconds. Thus, the transfer material within the surface of the mold was firmly adhered to the material to be transferred by the surface of the mold, and at the same time, a mark-like decorative body cut by the outer peripheral projections of the mold was obtained. This product had an orange brilliance peculiar to metal, and was excellent in elasticity and three-dimensionality.

[0022]

[Effect of device]

 According to the present invention, a release layer is provided on one side of a base film, and a protective resin layer, a metal thin film layer, an adhesive layer, a polyurethane sheet, and a heat-sensitive adhesive layer are sequentially formed on the release layer directly or through a high-friction resin layer. As a characteristic transfer sheet, it is possible to obtain a transfer sheet having a good metallic luster appearance and abrasion resistance, and having a texture and a high-grade image that are excellent in three-dimensionality and elasticity. Then, the transfer sheet obtained by the present invention is adhered to various material surfaces so that the characters, figures, patterns, etc. having the above characteristics are incorporated into a part of the design, such as clothing such as sportswear, Or you can get various marks, patches, small items, bags, etc.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view showing an embodiment of the present invention.

FIG. 2 shows an embodiment of a composite sheet using the transfer sheet of the present invention.

FIG. 3 is a partially enlarged sectional view showing another embodiment of the present invention.

FIG. 4 shows an embodiment of a patterned partial transfer product obtained using the transfer sheet of the present invention.

[Explanation of Codes] Base film ... Release layer ... High friction resin layer ... Protective resin layer ... Metal thin film layer ... Adhesion layer ... Polyurethane sheet ... Heat sensitive adhesive layer ... Transfer material

Claims (1)

[Scope of utility model registration request] 1. A release layer is provided on the upper surface of the base film,
A transfer sheet characterized in that a protective resin layer, a metal thin film layer, an adhesive layer, a polyurethane sheet and a heat-sensitive adhesive layer are sequentially provided on it directly or via a high friction resin layer.