| 摘要 |
PURPOSE: A biodegradable sheet is provided to resolve raw material supply problem by using PLA(polylactic acid) resins. CONSTITUTION: A biodegradable sheet with an adhesive layer(110) comprises a substrate layer(120), a resin layer(130), and a printed layer(140). The substrate layer is formed on top of the adhesive layer. The resin layer is formed on top of the substrate layer. The printed layer is formed on top of the resin layer. One or more of the adhesive layer and the resin layer include a PLA resin. The biodegradable sheet additionally includes a surface treating layer formed on top of the printed layer. The PLA resin is in sol form. The PLA resin is blended with the bio resin or the synthetic resin. The resin layer additionally includes one or more of plasticizer and processing aid. [Reference numerals] (110) Adhesive layer; (120) Substrate layer; (130) Resin layer; (140) Printed layer |
