HEAT TRANSFER PRINTING PROCESS
PURPOSE: To obtain easy thermal transfer properties, the slight migration tendency within or from the surface coating of an absorbing medium at room temp., high thermal or photochemical stability and the resistance against humidity and a chemical substance by using a specific azo dye. CONSTITUTION:...
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Zusammenfassung: | PURPOSE: To obtain easy thermal transfer properties, the slight migration tendency within or from the surface coating of an absorbing medium at room temp., high thermal or photochemical stability and the resistance against humidity and a chemical substance by using a specific azo dye. CONSTITUTION: An azo dye represented by the formula I (wherein R and R are each hydrogen, phenyl or 1-4C alkylphenyl which may contain up to 20 C-atoms, alkyl-, alkoxyalkyl- or cyanoalkyl group which may be substd. with cyano, 1-15C alkyl, 1-15C alkoxy, halogen or a phenyl- or cyclohexyl group which may be substituted with benzyloxy or a group represented by the formula II; R is hydrogen, amino, hydroxy or alkyl; X is hydrogen, chlorine, bromine, nitro, methyl, phenoxy, trioxy, dimethylphenyloxy, chlorophenoxy or 1-4C alkoxy; Y is hydrogen, chlorine or bromine; and Z is hydrogen, actyl, carbanaoyl or cyano) is used. |
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