| 摘要 |
<p>PURPOSE:To provide cards wherein pollution to be caused by withdrawn cards can be prevented. CONSTITUTION:At least a part of a card base material 1 to be used for a card consisting of a single layer or multiple layers is made of degradable plastic materials such as biodegradation plastic material degradable in the natural world, photodegradable plastic material, incorporatedly degradable plastic material, or thermoplastic plastic material of starch cellulose raw material.</p> |
