发明名称 |
COMPOSITE COATING AND SUBSTRATE USED IN LIQUID ELECTROPHOTOGRAPHIC PRINTING AND METHOD |
摘要 |
A digital-printing substrate and method of improving adhesion of a substrate to an liquid electrophotographic (LEP) ink in LEP printing both employ a composite coating. The composite coating includes from 4.5% to 9.5% by weight of a mineral pigment and from 0.5% to 2% by weight of an organic binder uniformly dispersed in water. The mineral pigment has a particle size less than 1 micron. The organic binder comprises a hydroxylated polymer having an average molecular weight greater than 50,000. A weight percentage of hydroxyl groups in the hydroxylated polymer is equal to or greater than a weight percentage of acidic groups in an LEP ink. The composite coating enhances adhesion of the LEP ink to the substrate comprising the composite coating dried on a surface of the substrate. |
申请公布号 |
EP2310915(A1) |
申请公布日期 |
2011.04.20 |
申请号 |
EP20080796676 |
申请日期 |
2008.07.25 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
BHATTACHARYYA, MANOJ, K.;NG, HOU, T. |
分类号 |
G03G5/06;G03G5/05;G03G7/00;G03G15/10 |
主分类号 |
G03G5/06 |
代理机构 |
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代理人 |
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