Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1977-09-21
1979-08-28
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
B29C 102
Patent
active
041660927
ABSTRACT:
The invention provides a process for making artistic prints on paper, cloth or other sheet material having a three-dimensioned surface texture. A smooth surface plate is first prepared of a waxy composition that is ductile and malleable at ambient temperature, and is also electrically conductive. An artist treats the surface of this plate by engraving and molding to produce a three-dimensional artistic work. An electrically conductive coating is applied to the treated surface and the plate is then coated in an electrolytic bath with a thin film of copper, which constitutes a mold of the artistic work. This copper film is separated from the waxy plate, -tinned, and strengthened by casting onto it a layer of lead. The copper surface of the composite plate is inked or colored with paint, and is then placed on the platen of a printing press having pressure rollers. The sheet material to be printed is placed over the copper surface under a blanket and passed through the press.
Editions of many substantially identical artistic prints can thus be produced.
REFERENCES:
patent: 3723585 (1973-03-01), Nussbaum
patent: 3748202 (1973-07-01), Iisaka et al.
Hall James R.
White Robert F.
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