JP3081305B2 - Surface decoration method of synthetic resin sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface decoration method for three-dimensionally applying characters, patterns and the like to the surface of a synthetic resin sheet.

[0002]

2. Description of the Related Art In various products, such as albums, notebooks, and books, which are provided with an exterior with a synthetic resin sheet, characters and patterns are provided on the cover and spine.

Conventionally, the above-mentioned characters and patterns have been formed by using a metal foil such as gold or silver and embossing and transferring the metal foil to the surface of a synthetic resin sheet by a hot stamping method in order to improve decorativeness. doing.

[0004]

By the way, the characters and patterns formed by hot stamping have a flat finish because the metal foil is merely transferred onto the surface of the synthetic resin sheet, and are not noticeable in the appearance change, and are decorative. There is a problem that the effect is low.

Accordingly, an object of the present invention is to provide a method of decorating a surface of a synthetic resin sheet which can make characters and patterns applied to the surface of the synthetic resin sheet three-dimensional, improve appearance and improve decorativeness. I have.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a foil is placed on one side of a synthetic resin sheet and an insulator is placed on the other side, and this is sandwiched between a relief and an intaglio. The method adopts a method in which a high frequency is applied between the letterpress and the intaglio in a pressurized state, the surface of the synthetic resin sheet is swelled in a stamped shape of the intaglio, and a foil is adhered to the surface of the swelled portion.

[0007]

[Action] A relief and an intaglio, which are engraved on the opposite surface, are arranged in opposition, a foil is placed on the front surface of the synthetic resin sheet and an insulator is placed on the back surface, and the laminate is placed between the relief and the intaglio. A high frequency is applied between the intaglio and the intaglio while the intaglio and the intaglio are placed close to each other and pressed while sandwiching the laminate.

By the application of high frequency, the synthetic resin sheet is deformed in accordance with the inscription of the intaglio, and the portion between the inscription of the intaglio is deformed along the inscribed shape of the intaglio due to internal heat generation, and the foil is formed only on the surface of the deformed portion. Will be glued.

When the synthetic resin sheet is taken out from between the relief plate and the intaglio plate, letters and patterns bulge on the surface thereof, and a three-dimensional finish is obtained in which the foil is adhered to the surface of the bulge portion.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a metal relief plate 1 and an intaglio plate 2 are arranged to face each other, and a laminate of a synthetic resin sheet 3 with a foil 4 on the front surface and an insulator 5 on the back surface is called a relief plate 1. Insert between intaglios 2.

The intaglio 2 is provided with an intaglio 2a such as a character or a pattern that matches the finished shape.
Is provided in a slightly larger shape than the concave stamp 2a.

The synthetic resin sheet 3 is made of soft vinyl chloride, and the insulator 5 is made of bakelite or paper.
The foil 4 is a metal foil of gold, silver, aluminum, or the like, and is removably overlapped on the separator, and has an adhesive layer provided on the back surface.

The laminated body of the synthetic resin sheet 3 and the foil 4 and the insulator 5 superposed thereon is inserted between the letterpress 1 and the letterpress 2 so that the foil 4 overlaps the letterpress 2, and in this state, the letterpress 1 and the letterpress 2 And pressurize the laminate between the letterpress 1 and the intaglio 2.

Next, when a high frequency is applied between the relief printing plate 1 and the intaglio printing plate 2, the portion of the synthetic resin sheet 3 sandwiched between the raised markings 1 a and the recessed markings 2 a generates internal heat due to molecular motion. A portion corresponding to the concave stamp 2a bulges to the front side along the shape of the concave stamp 2a.

A foil 4 overlaps the surface of the synthetic resin sheet 3, and the foil 4 overlapping the surface of the bulging portion 3a follows the shape of the bulging portion 3a and adheres to the surface of the bulging portion 3a. It will be adhered by the agent layer (see FIG. 3).

When the relief printing plate 1 and the intaglio printing plate 2 are separated and the synthetic resin sheet 3 is taken out, letters and patterns are formed on the surface of the sheet 3 by bulging portions 3a, and the surface of the metal foil 4 is peeled off from the separator. It is covered with, and becomes a character and a pattern with a three-dimensional effect that makes use of the gloss.

FIG. 2 shows an example in which the synthetic resin sheet 3 is used for the exterior of the album 6, in which a three-dimensional character 7 whose surface is finished with metal foil is formed.

[0019]

As described above, according to the present invention, a foil and an insulator are superimposed on both sides of a synthetic resin sheet, and a high frequency is applied by sandwiching the foil and the insulator between a letterpress and an intaglio. And patterns can be formed by bulging, and the foil can be adhered to the surface, so that letters and patterns with a three-dimensional effect utilizing the gloss of the foil can be formed at low cost.
The decorativeness of various products using a synthetic resin sheet for the exterior can be greatly improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a surface decoration method.

FIG. 2 is a perspective view of an album on which decorative characters are formed.

FIG. 3 is an enlarged sectional view of a main part of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Letterpress 2 Intaglio 3 Synthetic resin sheet 3a Swelling part 4 Foil 5 Insulator

Claims (1)

(57) [Claims] 1. A high frequency is applied between a relief and an intaglio in a state where a foil is placed on one side of a synthetic resin sheet and an insulator is placed on the other side, and the foil is pressed between the relief and the intaglio, thereby engraving the intaglio. A surface decoration method for a synthetic resin sheet, comprising: swelling the surface of a synthetic resin sheet into a shape; and adhering a foil to the surface of the swelled portion.