Stencil

Details Stencil Stencil

1983-10-11

1985-11-05

Coughenour, Clyde I.

Printing

Stenciling

Stencils

101129, 4283113, 4284735, B41N 124

Patent

active

045506604

ABSTRACT:
This invention provides stencil from which a patternwise perforated stencil can be easily made by handwriting, a stencil material set with which a patternwise perforated stencil can be made, and a stencil duplicator set which, in combination with the stencil, performs simple, clear printing. The stencil is made up of a porous support and a masking film formed thereon, said masking film being made of a water-insoluble polymer having tertiary amino groups. The stencil material set contains the stencil and a patternwise perforated stencil-making solution which forms a water-soluble product upon reaction with said polymer. Stencil printing is performed using the patternwise perforated stencil, a stencil duplicator and printing ink.

REFERENCES:
patent: 3607348 (1971-09-01), Wray
patent: 3891441 (1975-06-01), Tsuji
patent: 3909256 (1975-09-01), Wells
patent: 4003701 (1977-01-01), Brickman
patent: 4046577 (1977-09-01), Muzyczko
patent: 4096308 (1978-06-01), Reed
patent: 4177728 (1979-12-01), Koreska
patent: 4254194 (1981-03-01), Merrill
patent: 4268576 (1981-05-01), Montmarguet
patent: 4286518 (1981-09-01), Olthofer
patent: 4304705 (1981-12-01), Heilmann

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