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    • 5. 发明授权
    • Plastic card
    • 塑胶卡
    • US06848622B2
    • 2005-02-01
    • US10415918
    • 2002-09-03
    • Takao KudoShinichi MatsumuraSatoko Asaoka
    • Takao KudoShinichi MatsumuraSatoko Asaoka
    • B32B27/00B32B27/08B42D15/10G06K19/06
    • B32B27/08B32B27/00B42D25/00B42D25/369
    • 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.
    • 在包括芯材(12)和护套材料(13)的压花加工用塑料卡(10)中,芯材(12)的断裂伸长率为25%以下,护套材料的断裂伸长率 13)为130%以上。 将芯材的厚度与在塑料卡的整个部分占据的护套材料(13)的厚度的比率设定为20至53:10。 否则,芯材(12)的断裂伸长率为50%以下,护套材料(13)的拉伸强度为100MPa以上。 护套材料(13)的厚度与芯片整体部分占据的芯材(12)的厚度之比设定为41〜90:10。 芯材(12)和护套材料(13)的断裂伸长率或护套材料(13)的拉伸强度以及芯材料(12)与护套材料(13)的厚度之比被调整 从而提供了压花特性优异且难以产生由于重复弯曲疲劳引起的裂纹的塑料卡。