| 摘要 |
<p>PURPOSE: A biodegradable sheet is provided to be environmentally-friendly and to resolve raw material supply problem. CONSTITUTION: A biodegradable sheet comprises a substrate layer(110), a resin layer(120), and a printed layer(130). The resin layer is formed on top of the base layer. The printed layer is formed on top of the resin layer. The resin layer comprises a PLA resin. The biodegradable sheet additionally includes a surface treating layer which is formed on top of the printed layer. The PLA resin uses sol form. The PLA resin is blended with a bio resin or a synthetic resin. The resin layer additionally includes one or more of plasticizer and processing aid. The resin layer comprises 10-50 parts by weight of plasticizer and 1-10 parts by weight of processing aid based on 100.0 parts by weight of PLA resin. [Reference numerals] (110) Substrate layer; (120) Resin layer; (130) Printed layer</p> |
