Stencil material set and stencil duplicator set

Details Stencil material set and stencil duplicator set Stencil material set and stencil duplicator set

1984-04-19

1986-02-11

Coughenour, Clyde I.

Printing

Stenciling

1011284, 4283113, B41C 114

Patent

active

045692831

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: 2415704 (1947-02-01), O'Gorman
patent: 3209686 (1965-10-01), Arthurs
patent: 3527163 (1970-09-01), Bean
patent: 3891441 (1975-06-01), Tsuji
patent: 3951060 (1976-04-01), Crystal
patent: 4003701 (1977-01-01), Brinkman
patent: 4046577 (1977-09-01), Muzyczko
patent: 4128057 (1978-12-01), Hayama
patent: 4184428 (1980-01-01), Hosoya
patent: 4214522 (1980-07-01), Bille
patent: 4254194 (1981-03-01), Merrill

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