JP2002052873A - Thermal scratch card and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a thermal scratch card enabling the use of a thin concealing layer by preventing unevenness from appearing in a printing part. SOLUTION: In the thermal scratch card having the concealing layer, a card, wherein a thermal printing layer 12 is provided on a plastic base, is used as the card used in a base and an offset printing concealing layer 14 provided by thin offset printing is provided as the concealing layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a card application device,
Alternatively, the present invention relates to a thermal scratch card used for various systems using the card and a method for manufacturing the same.

[0002]

2. Description of the Related Art In a conventional card having a concealing layer, printing by thermal transfer is used to print information on the card surface, and a thick layer such as silk printing or pad printing is formed on the concealing layer. Therefore, a processing method having a high concealing property has been used.

[0003]

In the prior art, since printing is performed by thermal transfer, unevenness occurs in the printed portion, and the unevenness appears on the surface of the concealing layer to prevent the concealed information from being read, or In order to prevent reading through, the concealment layer needs to be processed to ensure a thickness of about 10 to 20 μm by silk printing, pad printing, or the like.
There were drawbacks such as difficulty in increasing efficiency.

Accordingly, it is an object of the present invention to provide a thermal scratch card and a method for manufacturing the same, which enable the use of a thin concealing layer by preventing irregularities from appearing in a printed portion.

[0005]

According to the thermal scratch card of the present invention, a card provided with a thermal printing layer on a plastic base is used as a base card.
A thin offset printing concealing layer is provided as the concealing layer.

In the thermal scratch card of the present invention, since information is printed on the thermal printing layer, unlike the thermal transfer printing, no irregularities are generated on the surface. Even if it is provided, it is characterized in that unevenness does not emerge. Further, under the concealing layer, for example, even when a ground pattern is provided by a thermal printing method, since the pattern of the ground tint does not appear as unevenness on the surface of the concealing layer, the underlying information cannot be read from the outside. It is a thermal scratch card.

That is, the present invention has a thermal printing layer,
Further, a thermal scratch card having a concealing layer which is easily peelable thereon.

Further, the present invention is a thermal scratch card in which a ground pattern layer is formed on the thermal printing layer.

The present invention also provides a thermal scratch card wherein the concealing layer has a thickness in the range from 1 μm to 5 μm.

The present invention is also a method for manufacturing a thermal scratch card in which a thermal printing layer is provided on a plastic base and a concealing layer is provided on the thermal printing layer by offset printing.

The thickness of the concealing layer is set to a range of 1 μm or more and 5 μm or less because if the thickness is less than 1 μm, concealment cannot be sufficiently performed, and it is not practical for offset printing exceeding 5 μm.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A thermal scratch card according to an embodiment of the present invention and a method for manufacturing the same will be described below.

FIG. 1 is an explanatory view of a thermal scratch card according to the present invention. The thermal scratch card of FIG. 1 has a thermal printing layer 1 on a plastic base 11.
No. 2 was formed, thermal printing was performed thereon, and a hiding layer by offset printing was provided.

FIG. 2 shows a thermal scratch card of a comparative example.
Shown in The thermal scratch card of FIG. 2 is provided with a thermal transfer printing portion 22 on a plastic base 21 and a printing protection varnish 23 for preventing the printing portion from being scraped off when the concealing layer is shaved. The layer 24 is configured so that the print cannot be read from outside.

Comparing the thermal scratch card manufactured with the above configuration, in the example, since there was no unevenness due to printing, even if the concealment layer was thin by offset printing, the printing could not be read from the outside.

Furthermore, offset printing can be performed thinner than silk printing and often uses UV-curable ink. Therefore, drying time can be reduced by comparing silk printing with ink using a solvent and the like. Can be significantly reduced. Therefore, in the thermal scratch card of the example, the production quantity per unit time of the thermal scratch card of the comparative example was increased, and the production was possible at about five times speed.

[0017]

As described above, according to the present invention, the concealing layer can be processed by offset printing to obtain the concealing property. It can provide a scratch card.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a thermal scratch card according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a conventional thermal scratch card.

[Description of Signs] 11, 21 Plastic base 12 Thermal printing layer 13 Thermal printing portion 14 Offset printing concealment layer 22 Thermal transfer printing portion 23 Print protection varnish 24 Silk printing concealment layer

Claims (4)

[Claims] 1. A thermal scratch card having a thermal printing layer on a plastic base, and a concealing layer which is easy to peel off on the plastic printing layer. 2. The thermal scratch card according to claim 1, wherein a ground pattern layer is formed on the thermal printing layer. 3. The thermal scratch card according to claim 1, wherein the concealing layer has a thickness in a range from 1 μm to 5 μm. 4. A method for manufacturing a thermal scratch card, comprising: providing a thermal printing layer on a plastic base; and providing a hiding layer on the thermal printing layer by offset printing.