申请人:ZENECA LIMITED
公开号:EP0216483A1
公开(公告)日:1987-04-01
A thermaltransfer printing sheet comprising a substrate having a coating comprising at least one azo dye of the formula:
wherein
A is the residue of a diazotisable heteroaromatic amine, A-NH7, in which A is selected from imidazolyl, pyrazolyl, thiazolyl, benzothiazolyl, isothiazolyl, benzoisothiazolyl, pyridoisothiazolyl & thienyl
& E is the residue of an aromatic coupling component, E-X wherein X is a group displaceable by a diazotised aromatic amine and E is optionally substituted aminophenyl, tetrahydroquinolinyl, julolidyl or aminoquinolmyl.
and a process for the transfer of dye from the transfer sheet to a receiver sheet by the selective application of heat to the transfer sheet while it is contact with the receiver sheet.
一种热转印印花片材,包括具有至少一种式偶氮染料涂层的基材:
其中
A是可重氮化的杂芳香族胺A-NH7的残基,其中A选自咪唑基、吡唑基、噻唑基、苯并噻唑基、异噻唑基、苯并异噻唑基、吡啶异噻唑基和噻吩基
& E 是芳香偶联组分的残基,E-X 其中 X 是可被重氮化芳香胺置换的基团,E 是任选取代的氨基苯基、四氢喹啉基、久洛烷基或氨基喹啉基。
以及一种在转印片与接收片接触时选择性地对其加热,从而将染料从转印片转移到接收片的工艺。