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(11) | EP 0 092 988 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Off-set printing |
(57) An ink design (2) is silk screened onto an intermediate surface (3) and is then transferred
to an article (5) by a deformable pad (4). 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
calysed, 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. |