申请人:Eastman Kodak Company
公开号:US05945374A1
公开(公告)日:1999-08-31
A thermal dye transfer assemblage comprising: (a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being: I) an electrically neutral, deprotonated, delocalized cationic dye precursor; II) a pendant basic dye of the formula D-(L-E).sub.m wherein D represents the residue of a dye, L represents a covalent linking group, E represents a moiety with basic properties and m is an integer of 1-3; or III) a cationic dye precursor having the following structure: ##STR1## (b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the polymeric dye image-receiving layer, the polymeric dye image-receiving layer comprising an acidic salt formed from the reaction of a weak, nitrogen-containing base with a strong protic acid dissolved or dispersed in a polymeric binder.
一种热转印组件,包括:(a)一种染料给体元件,包括支撑物,支撑物上有一层染料,该染料分散在聚合物粘合剂中,该染料为:I)一种电中性、去质子化、离域阳离子染料前体;II)公式D-(L-E).sub.m的悬基碱性染料,其中D代表染料残基,L代表共价连接基团,E代表具有碱性特性的基团,m为1-3的整数;或III)具有以下结构的阳离子染料前体:##STR1## (b)一种染料接收元件,包括支撑物,支撑物上有一层聚合物染料接收层,染料接收元件与染料给体元件处于重叠关系,使染料层与聚合物染料接收层接触,聚合物染料接收层包括由弱的含氮碱与强的质子酸反应形成的酸性盐,该质子酸溶解或分散在聚合物粘合剂中。