USE OF INDIGO-DERIVATIVES AS IRREVERSIBLE COLOR CHANGEABLE DYES FOR TEXTILE MATERIALS, NOVEL COMPOUNDS AND A PROCESS FOR DYEING TEXTILE MATERIALS

摘要

The present invention relates to the use of novel and known indigo-derivatives as irreversible color changeable dyes for textile materials and to novel compounds. The invention also relates to a process for dyeing textile materials, especially denim, with indigo-irreversible color changeable dyes and to garment articles made by said textile materials.