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Plastic card

A technology of plastic cards and core materials, applied in the field of plastic cards, can solve problems such as undiscovered materials

Inactive Publication Date: 2004-02-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, card materials to replace vinyl chloride have been studied, but a fully satisfactory material has not been found in the existing environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] Screen printing was performed on one side of a 280 μm thick PETG plate to which 24% by weight of a filler consisting of talc and titanium dioxide was added. The board obtained was used as core material (its elongation at break was 20%). In addition, a 100 μm thick drawn PET sheet consisting of a polycarbonate / PBT hybrid sheet was used as the cladding material (its elongation at break was 130%) (assuming that the thickness of the cladding material is 10 and the thickness ratio of the core material is 28).

[0039] The above-mentioned core material and a core material having the same structure as that of the above-mentioned core material except that it was not screen-printed were laminated so that the screen-printed surface was outside. The cladding material is laminated on the outside of the two core materials to have such Figure 4 The four-layer structure shown. The thermocompression bonding of the four-layer structure was performed at 130°C. The obtained laminate ...

example 2

[0041] In addition to using as the core material a 280 μm thick polyester / polyamide hybrid plate (with an elongation at break of 23%) added with a filler of 24% by weight consisting of talc and titanium dioxide, the same as that of Example 1 Make plastic cards in the same way.

example 3

[0043] A plastic card was manufactured in the same manner as in Example 1, except that a 280 μm thick ABS plate (having an elongation at break of 25%) added with a filler of 24% by weight consisting of talc and titanium dioxide was used as the core material .

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Abstract

In a plastic card (10) for an embossing finish comprising a core material (12) and a sheath material (13), a breaking elongation of the core material (12) is 25 % or less and a breaking elongation of the sheath material (13) is 130 % or more. The ratio of the thickness of the core material to the thickness of the sheath material (13) occupied in the entire part of the plastic card is set to 20 to 53 : 10. Otherwise, a breaking elongation of the core material (12) is 50 % or less and the tensile strength of the sheath material (13) is 100 MPa or more. The ratio of the thickness of the sheath material (13) to the thickness of the core material (12) occupied in the entire part of the card is set to 41 to 90 : 10. The breaking elongation of the core material (12) and the sheath material (13) or the tensile strength of the sheath material (13), and the ratio of thickness of the core material (12) to the sheath material (13) are adjusted so that the plastic card excellent in embossing characteristics and hardly generating cracks due to a repetitive bending fatigue is provided.

Description

technical field [0001] The present invention relates to a plastic card for use with various cards such as credit cards, cash cards, debit cards, and more particularly, the present invention relates to plastic cards suitable for embossing. Background technique [0002] In recent years, card-type storage media such as credit cards, ID cards, cash cards, and debit cards include ICs (integrated IC cards with IC chips and magnetic cards that can record information magnetically. The IC card includes a non-contact type IC card which can receive data from and transmit data to a transmitting and receiving section of a reading device in a non-contact manner. The IC card also includes a contact type IC card which can receive data in a contact manner from and transmit data to the sending and receiving section of the reading device. In any type of IC card, more information can be stored on an IC chip than on a magnetic card, and it has the advantage that information can be stored in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/00B32B27/00B32B27/08B42D25/23B42D25/305B42D25/324B42D25/405B42D25/425B42D25/455B42D25/46B42D25/475
CPCB42D25/00B32B27/08B32B27/00B42D15/10G06K19/0723B42D25/369
Inventor 工藤孝夫松村伸一浅冈聪子
Owner SONY CORP