JP2503410Y2 - Image forming body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an image forming body having a so-called opal image composed of a group of fine line-shaped uneven patterns on a hard base material.

[Prior Art and Its Problems] As an image forming body, a plurality of fine line-shaped uneven pattern groups were formed on the surface of a sheet-like substrate having metallic luster by slightly changing the direction of the line for each pixel. The thing (the image forming body which has an opal effect) is used. This image-forming body is manufactured by, for example, applying a pattern to the aluminum surface of wax-laminated aluminum foil paper if necessary, and then changing the fine line-shaped uneven pattern group in various directions little by little. This is performed by pressing a press plate having a combined emboss pattern.

In such an image forming body, since the line directions in the line-shaped uneven pattern group on the surface are different from each other, the reflection direction of the reflected light on the surface changes variously, and when the viewing angle or direction is changed. , The shade and brilliance of each line-shaped uneven pattern group dynamically changes, resulting in an extremely splendid effect (opal effect).
Bring out. The image forming body having this opal effect is
It is very difficult to manufacture the embossed pattern used during the manufacture, and it is also difficult to register it with the pattern formed in advance on the substrate, so that it is difficult for a third party to easily forge it.

In recent years, attempts have been made actively to form an image forming body on a telephone card or the like by utilizing such effects. However, when the image pattern is relatively small, there is no problem, but when the pattern becomes large, the desired opal effect is usually obtained because the base material such as the telephone card is formed of a material such as polyethylene terephthalate that is hard and is not easily thermally deformed. There is a problem that an image pattern capable of exhibiting the above cannot be easily formed.

The present invention has been made in view of the above points, and provides an image display body in which an opal image is formed on a base material that is hard and hardly deformed by heat.

[Means for Solving the Problems] The present invention is directed to a cushion layer formed on a predetermined region of a hard base material, and an adhesive layer formed on the cushion layer via an adhesive layer so as to form a fine pattern having a predetermined inclination angle. An image forming body comprising: an opal layer formed by forming an opal image formed by combining a plurality of linear uneven pattern groups for each pixel by slightly changing the direction of parallel lines. .

Here, the image forming body of the present invention is a telephone card,
It can be applied to those formed of hard base materials such as orange cards, credit cards and cash cards.

The hard base material means a base material made of acrylic resin, polyethylene terephthalate resin, metal, glass or the like.

The cushion layer may be of any type as long as it is formed of a resin that can be easily thermoformed, such as a polyvinyl chloride resin. The cushion layer is formed by a gravure method, a roll coating method, a foil stamping method, etc. in addition to the silk printing. On the other hand, the opal layer is formed by forming an opal image formed by combining a plurality of fine line-shaped uneven pattern groups having a predetermined inclination angle on its surface by slightly changing the direction of the line for each pixel. is there. Specifically, this layer is made of vapor-deposited metal, ink or paint having excellent gloss.

[Operation] According to the image forming body of the present invention, since the predetermined cushion layer is provided immediately below the opal layer, the predetermined opal image can be easily formed on the hard and hard-to-heat-deformable substrate. .

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory diagram showing a schematic configuration of an embodiment of the present invention. In the figure, 1 is a base material that constitutes a telephone card, for example. The base material 1 is made of hard polyethylene terephthalate. A cushion layer 2 made of polyvinyl chloride resin is formed in a predetermined region on the base material 1. On the cushion layer 2, an adhesive layer 3, an opal layer 4 made of a vapor-deposited metal layer, a color layer 5 and a protective layer 6 are sequentially laminated.

Since the image image forming body 10 configured in this manner has the cushion layer 2 provided on the base material 1, the opal layer 4 is formed in a fine pattern as shown in FIGS. 2 (A) and 2 (B). By pressing the press plate 13 having the embossed pattern 12 in which the linear concavo-convex pattern group 11 is combined in various directions by gradually changing the line direction, the pressing plate 13 can be pressed easily and clearly on the protective layer 5. . The groove pitch (L) of the line-shaped uneven pattern group 11 is set to 80 μm, for example, and the groove depth (D) is
The number is set to 10 to 20 μm, and the number is set to 8 to 12 lines / mm. In this case, as shown in FIG. 3, it cannot be formed in the conventional case in which the adhesive layer 3, the opal layer 4, the color layer 5 and the protective layer 6 are sequentially laminated on the hard base material 1. Large and complex opal layers can also be easily realized. Moreover, since the display information is complicated by the pattern of the opal layer 4 and the pattern of the color layer 5, the forgery prevention effect can be sufficiently enhanced.

[Advantages of the Invention] As described above, according to the present invention, it is possible to provide an image forming body in which a predetermined opal image is formed on a substrate that is hard and hardly deformed by heat.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of an embodiment of the present invention,
FIG. 2 is an explanatory view of a press plate for forming an opal layer, and FIG. 3 is an explanatory view of a conventional image forming body. DESCRIPTION OF SYMBOLS 1 ... Base material, 2 ... Cushion layer, 3 ... Adhesive layer, 4 ... Opal layer, 5 ... Color layer, 6 ... Protective layer, 11 ... Line uneven pattern, 12 ... Embossing pattern, 13 ... Press plate.

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Claims (1)

(57) [Scope of utility model registration request] 1. A hard card base material, a cushion layer formed on a predetermined region of the card base material and made of a non-foaming resin which is easily thermoformed, and a cushion layer formed on the cushion layer via an adhesive layer. It is composed of deposited metal, ink or paint with excellent gloss,
An opal image-bearing card comprising an opal layer formed by forming an opal image formed by combining a plurality of fine line-shaped uneven pattern groups for each pixel by changing the direction of the line.