Vat acid dyeing of textile fibers

   
   

A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as .alpha.-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.

Un proceso para teñir ciertas fibras del textil, utilizando teñir del ácido de la tina y (en segundo lugar) agentes de reducción adicionales específicos tales como ácidos del alpha.-hydroxyalkylsulfinic, sus sales y 1,2,4-trithiolane, dando por resultado la profundidad excelente de la cortina y del washfastness, se proporciona.

 
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