Indirect printing apparatus employing sacrificial coating on intermediate transfer member
OwnerGuiqin Song, Gordon Sisler +4inventors
InventorsGuiqin Song, Gordon Sisler, Brynn Dooley, Qi Zhang, Suxia Yang, Valerie M. Farrugia
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Abstract
A sacrificial coating composition for an image transfer member in an aqueous ink imaging system. The sacrificial coating composition includes a latex having polymer particles dispersed in a continuous liquid phase; at least one hygroscopic material; at least one surfactant; and water.
Claims20
A sacrificial coating composition for an image transfer member in an aqueous ink imaging system, comprising:
- a latex comprising polymer particles dispersed in a continuous liquid phase, the latex comprising a styrene/n-butyl acrylate/methacrylic acid terpolymer;
- at least one hygroscopic material;
- at least one surfactant;
- and
- water.
A sacrificial coating composition for an image transfer member in an aqueous ink imaging system, comprising:
- a latex comprising polymer particles dispersed in a continuous liquid phase, the polymers in the latex having a glass transition temperature ranging from about −45° C. to about 100° C., a weight average molecular weight ranging from about 3000 to about 300,000, and a particle size ranging from 50 nm to 300 nm;
- at least one hygroscopic material;
- at least one surfactant;
- and
- water.
A sacrificial coating composition for an image transfer member in an aqueous ink imaging system, comprising:
- a latex comprising polymer particles dispersed in a continuous liquid phase, the latex having a viscosity of about 3 cps to about 800 cps at 25° C., a pH ranging from about 3 to about 10, and a solid content ranging from 5% to about 70%;
- at least one hygroscopic material;
- at least one surfactant;
- and
- water.
Dependencies are inferred from the claim text.