JPH0232419Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an insert film that produces a metallic luster pattern, and more specifically, it relates to an insert film that gives a metallic luster pattern to the surface of a plastic molded product at the same time as the molding. This invention relates to insert films for molded products.

Conventionally, so-called insert films, which add patterns to plastic molded products at the same time as they are molded, have been widely used in techniques such as surface decoration of lunch boxes, water bottles, pots, cosmetic containers, and the like. However, conventional insert films merely express colored patterns, letters, etc., and there has been a demand for insert films with significant decorative effects to further enhance the value of the various products mentioned above. In view of the current situation, the present inventor has made various considerations and devises, and as a result, has completed the present invention. That is, the present invention has a pattern layer 2 and a metal vapor deposition layer 3 on a basic sheet 1 made of plastic film.
This is an insert film that exhibits a metallic luster pattern, characterized in that it is laminated with a resin layer 4 made of plastic of the same quality or type as the plastic molded product to be decorated.

Hereinafter, the present invention will be explained in more detail based on the drawings.

As the base sheet 1, a transparent plastic film is used, such as an oriented polypropylene film or a polyethylene terephthalate film. Thin materials with excellent strength and heat resistance are preferred.

A pattern layer 2 for expressing characters, patterns, etc. and a metal vapor deposition layer 3 are provided on a base sheet 1 (see FIGS. 1 and 2). The pattern layer 2 is formed by normal printing means.
The metal vapor deposition layer 3 is also formed by a normal method, but when it is intended to be provided partially, the following method may be used. That is, first, a water-soluble resin layer is provided in a place where a metal vapor deposition layer is not required, and then metal vapor deposition is applied to the entire surface, and then when washed with water, the water-soluble resin layer portion peels off, and the metal vapor deposition layer 3 is formed in other areas. It is formed.
Another method is to first apply metal vapor deposition to the entire surface,
There is a method in which a resist layer is provided at necessary locations thereon, and then unnecessary metal vapor deposited layers are removed by cleaning with an acid or alkaline solution. According to these methods, the registration of each part of the pattern layer 2 and the metal vapor deposition layer 3 can be easily matched. Note that an anchor layer 5 may be provided on the pattern layer 2 to facilitate metal vapor deposition. The anchor layer 5 is formed by coating or printing a resin such as urethane resin, vinyl chloride resin, or polyester resin.

Further, the metal vapor deposition layer 3 may be provided in advance on a film to be laminated, which will be described later.

A resin layer 4 is formed on a base sheet 1 on which a pattern layer 2 and a metal vapor deposition layer 3 are laminated. This resin layer 4
is made of plastic of the same quality or type as the plastic molding to be painted. The resin layer 4 may be formed by laminating means such as extrusion lamination or dry lamination, or by printing or coating means. Specifically, as the film to be laminated, a polyethylene film is used for a polyethylene molded product, a polypropylene film is used for a polypropylene molded product, and a styrene film is used for a styrene molded product. The thickness of the resin layer 4 is preferably in the range of 12 .mu.m to 40 .mu.m, and this can be easily obtained by the laminating method described above.

The insert film according to the present invention having the above structure is used as follows. That is, a plastic film of the same quality as the molded product is placed inside the mold, and molten resin is injected (see FIG. 3). The insert film is molded integrally with the molded product, and a metallic luster pattern appears on the surface.

Since the present invention is an insert film that produces a metallic luster pattern as described above, it can easily produce a metallic luster pattern on the surface of plastic molded products, which was not previously available, and can be applied to a variety of molded products. This gives the product a decorative effect and increases its value.

[Brief explanation of the drawing]

1 and 2 are enlarged cross-sectional views of an embodiment of the insert film according to the present invention, and FIG. 3 is an enlarged cross-sectional view showing an example of its use. In the figure, 1...base sheet, 2...design layer, 3...
...Metal deposition layer, 4...Resin layer, 5...Anchor layer.

Claims (1)

[Claims for Utility Model Registration] 1. A pattern layer and a metal vapor deposited layer are laminated on a base sheet made of a transparent plastic film, and a resin layer made of a plastic of the same quality or type as the plastic molded product on which a picture is to be applied. An insert film that exhibits a metallic luster pattern. 2. An insert film exhibiting a metallic luster pattern according to claim 1 of the utility model registration, characterized in that an anchor layer is provided below the metal vapor deposited layer. 3. An insert film exhibiting a metallic luster pattern according to claim 1 of the registered utility model, characterized in that the thickness of the resin layer is in the range of 12 μm to 40 μm.