Invention Patent
- Patent Title: PRINTING PLATE MATERIAL OF RESIN
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Application No.: JP6807295Application Date: 1995-03-27
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Publication No.: JPH08258441APublication Date: 1996-10-08
- Inventor: AMI HIDEYUKI , MAJIMA OSAMU
- Applicant: TSUTSUNAKA PLASTIC KOGYO , SONY CORP
- Assignee: TSUTSUNAKA PLASTIC KOGYO,SONY CORP
- Current Assignee: TSUTSUNAKA PLASTIC KOGYO,SONY CORP
- Priority: JP6807295 1995-03-27
- Main IPC: B41C1/05
- IPC: B41C1/05 ; B32B27/18 ; B32B27/30 ; B41N1/12 ; C08L33/00 ; C08L33/04 ; C08L101/00
Abstract:
PURPOSE: To improve durability and to enable recycling by arranging the tensile strength of a laminate consisting of a pit layer of an acrylic resin composition in which carbon black etc., are incorporated into a resin component and a reinforcing layer of a thermoplastic resin on the back of the pit layer to be a specified value or more. CONSTITUTION: In a printing plate material 1 of resin which can make a printing plate by laser etching, a resin component in which an acrylic resin and an impact reinforcing agent are incorporated is laminated with a pit layer 2 in which carbon black and a heat decomposing substance are incorporated and a reinforcing layer 3 of thermoplastic resin to be integrated into a laminate. The tensile strength of the laminate is set at 25N/mm or more. In order to recycle the printing plate material, a thermoplastic resin which is compatible with an acrylic resin which is a main component of the pit layer 2 is used preferably as the reinforcing layer. In the pit layer 2, the content of an impact reinforcing agent in an acrylic resin composition is arranged to be 100-400 pts.wt. to 100 pts.wt. of acrylic resin.
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