POLYAMIDE DYEING CE METAL FREE WITH HIGHEST FASTNESS PROPERTIES

摘要

Ecological responsibility requires to search for potential removal of metal in dyes used for polyamide dyeing.The replacement for the pre-metallized dyes,however,need to show the same high fastness properties.The technological break through comes with the introduction of a new class of modified acid dyes which yield highest wet fastness properties without any after treatment and superior leveling ability then any other dye class of the same fastness level,i.e.reactive dyes.