home > teknicolour > textile dyeing : 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9

Dye-fibre association

            
image: Pigment and dyes from dystar
      
image: Dyes by dystar
    
           
Basic (cationic) dyes are used to dye polypropenonitrile (acrylic) fibres with an acidic character. The mechanism by which basic dyes are absorbed onto the acrylic fibres is believed to one of ion exchange, analogous to the mechanism, whereby the cations of acidic fibres are replaced by the dye cations.
  
     

Also See:

Dyes and pigments: natural
Dyes and pigments: synthetic
Fastness tests