Invention Grant
- Patent Title: Pressure-sensitive copying systems
- Patent Title (中): 压力敏感复印系统
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Application No.: US28771472Application Date: 1972-09-11
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Publication No.: US3865613APublication Date: 1975-02-11
- Inventor: ROSS JOHN EDWARD , MARSHALL DAVID JAMES , CHAPMAN BRIAN SAMUEL
- Applicant: WIGGINS TEAPE RES DEV
- Assignee: Wiggins Teape Res Dev
- Current Assignee: Wiggins Teape Res Dev
- Priority: GB278572 1972-01-20; GB4447471 1971-09-23
- Main IPC: B01F1/00
- IPC: B01F1/00 ; B41M5/165 ; B41M5/16
Abstract:
A sheet for use in a pressure-sensitive copying system has a coating of microcapsules containing an organic, initially colourless, colour-former dissolved in a solvent which includes dibenzylbenzenes, specifically a mixture of unsubstituted dibenzylbenzenes with substituted dibenzylbenzenes containing up to three methyl groups.
Information query
