Improvement of polypropylene (PP) dyeing by modification methods

Abstract

POLYPROPYLENE have wide applications fabrics in our are important life. PP are for difficult the woven to be or nonwovens dyed by conventional market. PP fabrics dyeing methods, since they have no reactive functional groups in their chemical structure. For the above reasons. PP fabrics are modified by different methods to improve their dyeing property using the following: I. Blending PP chips with other polymers with different ratios of PTT, PE, PET, EVA, PS, PA during melt extrusion. II. Dyeing PP using disperse dyes in superfacial carbon dioxide. III. Mass coloration of PP by melt extrusion with organic, inorganic pigments or metallic additives. IV. Modification of PP by radio-grafting technique. V. Dyeing PP by other means.