Process for preparing a screen stencil

Details Process for preparing a screen stencil Process for preparing a screen stencil

1979-07-02

1981-04-14

Newsome, John H.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

427 531, 427273, 427278, 427288, B05D 306

Patent

active

042620848

ABSTRACT:
The invention provides on improved process for preparing a screen stencil, and a screen stencil prepared by the process. The process includes the steps of placing a porous support for a screen stencil over a mounting plate, saturating the porous support with a substantially carrier-free radiation curable composition. A backing plate is placed over the saturated porous support and rolling pressure is applied to the backing plate while allowing any excess composition to flow out from between the mounting plate and backing plate. The composition is then exposed to radiation through a positive disposed opposite the backing plate, and thereafter, uncured composition is removed from the porous support.

REFERENCES:
patent: 2969732 (1961-01-01), Kendall
patent: 3507652 (1970-04-01), Wrench
patent: 3510303 (1970-05-01), Preddy et al.
patent: 3573975 (1971-04-01), Dhaka et al.
patent: 3676128 (1972-07-01), Leopold et al.
patent: 3891441 (1975-06-01), Tsuji et al.

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