DYEING POLYACRYLIC FIBRES WITH NEW INDAZOLYC CATIONIC DYES SYNTHESIZED

摘要

In the present study we have investigated synthesis of new dyes as type tiazolo-indazolyc, which have beside a quaternary groupe to ammonium, other basic centres what can be reversible protonation. In this way the stage of decoupling dye - anionic groupes from chair, polyacrylic fibres extremity, probably cannot be speed determinant, for that motive the whole process tinctorial will be unfurl with great speed. Our supposition have at the base fibres both date from literature and personal preliminary tests looking capacity of kneading at the crystalline zone of PNA fibre, about migration dye former fixed on the amorphous zone about an traditional tinctorial process. The synthesis of cationic dyes what will include indazolyc heterocycle sistems will allow treating the theoretical and preparations synthetical problems concerning synthesis of sistems heterocycle illegible in the speciality literature. This paper presents synthesis of indazolyc cationic dyes, the properties (intense and brightness color, fastness to washing, fastness to perspiration, fastness to rubbing, fastness to boiling and to blenching, exposure to sunlight, abilitity to be absorbed an beginning from retained by the fiuer), the spectrophotometric data and the results in dyeing polyacrylic fibres.