公开(公告)号：US06841590B2

公开(公告)日：2005-01-11

申请号：US10034004

申请日：2001-12-28

申请人： Jitendra Modi ,  Edward Stone ,  Ana Marie Flores ,  Robert Catena ,  Robert Auerbach

发明人： Jitendra Modi ,  Edward Stone ,  Ana Marie Flores ,  Robert Catena ,  Robert Auerbach

IPC分类号： C09D11/00 ,  C09D11/10 ,  C08L31/04 ,  C08L33/02 ,  C08L91/06

CPC分类号： C09D11/34

摘要： Solid, solvent-free inks are provided for use in hot melt flexographic printing. The ink is composed of a pigment; a thermoplastic binder which is an ethylene copolymer, a hydrocarbon resin, or a combination thereof; a wax which is a highly branched hydrocarbon wax, a polyethylene homopolymer wax, an oxidized polyethylene wax, an animal wax, a vegetable wax or combinations thereof; a solid linear alcohol; and, a dispersing agent. The ink may also contain a solid plasticizer. The solid ink has a melting point of about 75° C. or greater, and when heated to a temperature between about 90° C. and about 135° C., a molten ink is formed which has a viscosity between about 100 cps and about 1200 cps. The solid inks are used in melt flexographic printing by heating the ink to a temperature greater than about 90° C. to form a molten ink which has a viscosity between about 100 cps and about 1200 cps; applying the molten ink to the surface of a heated anilox roller in operational contact with a heated flexographic printing plate; and printing the applied molten ink from the printing plate onto a substrate such as conventional print stock, polymeric films, metal sheets, etc.

摘要翻译： 提供固体，无溶剂的油墨用于热熔胶版印刷。 油墨由颜料组成; 乙烯共聚物，烃树脂或其组合的热塑性粘合剂; 蜡，高支化烃蜡，聚乙烯均聚物蜡，氧化聚乙烯蜡，动物蜡，植物蜡或其组合; 固体线性醇; 和分散剂。 油墨也可以含有固体增塑剂。 固体油墨具有约75℃或更高的熔点，并且当加热到约90℃至约135℃的温度时，形成熔融油墨，其粘度在约100cps和约 1200 cps。 固体油墨通过将油墨加热至大于约90℃的温度而用于熔融柔性版印刷，以形成粘度在约100cps至约1200cps之间的熔融油墨; 将熔融油墨施加到加热的网纹辊的表面上，与加热的柔版印刷版操作接触; 并将所施加的熔融油墨从印刷版印刷到诸如常规印刷原料，聚合物膜，金属片等的基材上。