Stencil printing sheet and process for stencil making the same

Details Stencil printing sheet and process for stencil making the same Stencil printing sheet and process for stencil making the same

1997-01-13

1999-03-09

Yamnitzky, Marie

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283066, 4283084, 42831131, 428524, 428530, 4285375, 4283088, 10112821, 425811, 427143, B32B 2706, B05C 1706

Patent

active

058797920

ABSTRACT:
A stencil printing paper and a process for perforating and engraving the same having the advantages in that the production of the stencil printing paper is easy, the resulting production cost can be thereby reduced and there is no generation of any problem at a time of stencil-making. In a stencil printing paper constituted by laminating a solvent-soluble resin layer to a porous substrate, the present invention comprises a stencil printing paper containing an acetalized polyvinyl alcohol having an acetalization degree of 1-70 mol % and a process for perforating and engraving the stencil printing paper by a mixed solvent containing water and an alcohol type solvent.

REFERENCES:
patent: 3246986 (1966-04-01), Borchers
patent: 4940646 (1990-07-01), Pawlowski
patent: 4960671 (1990-10-01), Dickinson
patent: 5122442 (1992-06-01), Moskowitz et al.
patent: 5149577 (1992-09-01), Chang et al.

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