Method for producing lightfast disperse dyestuffs containing a build-in photostabilizer [molecule] compound

A method of producing a disperse dye having UV lightfast properties comprising selecting a disperse dyestuff from the class consisting on azo dyes, anthraquinone dyes and nitro dyes, selecting a photostabilizer compound from the class consisting of benzophenones, benzotriazoles and hindered amines, designing a hybrid disperse dye compound the molecular structure of which includes the structural features of both the selected dyestuff and the selected photostabilizer compound and in close proximity to each other, and synthesizing the thus designed hybrid disperse dyestuff compound.

A method of producing a disperse dye having UV lightfast properties comprising selecting a disperse dyestuff from the class consisting of azo dyes, anthraquinone dyes and nitro dyes, selecting a photostabilizer compound, examining the molecular structure of each to identify an atom or group of atoms common to both, designing a hybrid disperse dye compound the molecular structure of which includes the structural features of both the selected dyestuff and the selected photostabilizer and which shares the identified common atom or group of atoms, and synthesizing the thus designed hybrid disperse dyestuff compound.

A method of producing a disperse dye having UV lightfast properties comprising selecting an azo or nitro disperse dyestuff, selecting a benzophenone photostabilizer compound, examining the molecular structure of each to identify a phenyl group ring common to the molecular structure of both the selected dyestuff and the selected benzophenone, designing a hybrid disperse dye compound the molecular structure of which includes the structural features of both the selected dyestuff and the selected benzophenone photostabilizer and which shares the identified common phenyl group, and synthesizing the thus designed hybrid disperse dyestuff compound.