Off-set printing by silk screening an intermediate surface and t

Details Off-set printing by silk screening an intermediate surface and t Off-set printing by silk screening an intermediate surface and t

1988-01-28

1991-10-08

Crowder, Clifford D.

Printing

Stenciling

101 41, 101129, 101163, B41F 1500, B41F 1700

Patent

active

050543903

ABSTRACT:
An ink design is silk screened onto an intermediate surface and is then transferred to an article by a deformable pad. In order to provide a large difference in the ink affinities of the intermediate surface and pad, these are made of silicone rubbers in which different catalysts are used in the curing of the rubbers. Dibutyltindilaurate as catalyst provides an intermediate surface of low ink affinity which can enable 100% transfer of ink from the intermediate surface to the pad when a stannous octoate catalyzed, condensation cured rubber, or a suitable addition cured rubber, is used for the pad. The screen is heated to a greater temperature than that of the intermediate surface.

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"The Effect of Different Types and Amounts of Catalyst on the Mechanical Properties of Silicone Rubbers", Wacker-Chemie GmbH, Oct. 1981 Edition.
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