Microemulsion printing ink

Details Microemulsion printing ink Microemulsion printing ink

C - Chemistry, Metallurgy

09

D

C09D 11/02 (2006.01)

Patent

CA 2144890

A printing ink useful for "waterless" printing processes comprising a water-in-oil microemulsion wherein the water phase is present in an amount of about 5 to 20 wt.%, based on the weight of the ink. The water phase contains about 0.5 to 3 wt.%, based on the weight of the ink, of a surfactant which will not lower the surface tension of the ink, but will preferably increase the surface tension of the ink by at least about 5%. The ink optionally contains about 0.05 to 0.5 wt.%, based on the weight of the ink, of a water-soluble polymer capable of producing a viscosity in the water phase of about 5 to 10 poise.

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