G - Physics – 03 – C
Patent
G - Physics
03
C
96/256
G03C 11/12 (2006.01) G03F 1/10 (2006.01) G03F 3/10 (2006.01)
Patent
CA 1267805
ABSTRACT A photomechanical method for forming pressure sensitive dry transfer reproductions of color images, either single color or multicolor. A base release lacquer is applied to a substrate and dried, a one color ink layer is applied to the dry base layer and dried. A white ink layer is applied to the dried color ink layer. The dried white ink layer is powdered and a layer of photoresist composition is formed thereover and dried. The dry photoresist covered layered substrate is exposed to a light source through an image carrying photographic negative film to harden the photoresist at the imaged areas thereby forming a mask. Nonhardened photoresist areas along with all their underlying layers are removed to the base substrate using stepwise selected solvent development steps. The cycles are repeated with respectively different color inks and different negative films to form a multicolor image. The final image is dried and coated with a pressure sensitive adhesive composition. The adhesive coating is dried. Drying is essential between all layering and development steps. A second lacquer layer, a non-release lacquer, may be applied to the release lacquer base and dried prior to application of the color ink layer.
503313
Evans Robert
Evans Robert Jr.
Borden Ladner Gervais Llp
Identicolor International Inc.
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