Process for preparing ink releasing stencil

Details Process for preparing ink releasing stencil Process for preparing ink releasing stencil

1973-12-27

1978-05-09

Coughenour, Clyde I.

Printing

Stenciling

Stencils

1014011, 101465, 427256, B41C 114, B41N 124

Patent

active

040880737

ABSTRACT:
A novel method for preparing a stencil master, a novel stencil and a method for printing therefrom are provided. The method for preparing the stencil comprises coating a suitable screen with a curable silicone containing a curing catalyst, depositing a particulate image pattern on said coated screen with a material which selectively inactivates said curing catalyst below said image pattern, curing the resultant nonimaged silicone to an elastomeric ink releasable condition and removing the particles from said particulate image pattern and the uncured silicone below said pattern to provide perforations in imagewise configuration. The method for printing comprises the additional steps of contacting the resultant screen with an image receiving member and passing ink through said perforations to thereby form an inked image on said receiving member.

REFERENCES:
patent: 2949848 (1960-08-01), Mott
patent: 3002848 (1961-10-01), Clark
patent: 3215527 (1965-11-01), Johnson
patent: 3243410 (1966-03-01), McVannel
patent: 3264258 (1966-08-01), Ceyzeriat
patent: 3538847 (1970-11-01), Heilman
patent: 3619157 (1971-11-01), Brinckman
patent: 3682633 (1972-08-01), Curtin
patent: 3833401 (1974-09-01), Ingram

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