Patent ID: 11951655
Assignee: SHREYA MAJUMDAR
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A method comprising:
peeling a paper-plastic laminate material comprising a first plastic layer, a second plastic layer, and a paper layer disposed between the first plastic layer and the second plastic layer, to obtain a dual-layer sheet, the dual-layer sheet comprising the paper layer on a first side and one of the first plastic layer or the second plastic layer on a second side,
disposing the dual-layer sheet on a first substantially flat surface such that the first plastic layer or the second plastic layer contacts the substantially flat surface, and the dual-layer sheet is held substantially stationary with respect to the substantially flat surface;
moving an abrasive second surface with respect to the substantially flat surface, the abrasive second surface configured to contact the paper layer and separate portions of the paper layer from the first or second plastic layer, wherein the abrasive second surface comprises multiple small ringlets configured to scrape off the paper layer from the dual-layer sheet while preserving the first or second plastic layer;
collecting the separated portions of the paper layer and providing the separated portions of the paper layer as input to a paper recycling process; and
collecting the first or second plastic layer and providing the first or second plastic layer as input to a plastic recycling process.