Water-free dyeing of textile accessories using supercritical carbon dioxide

Abstract

Results are given about a new dyeing process for dyeing synthetic fibre material with disperse dyes. The use of supercritical carbon dioxide as dyeing medium completely avoids water pollution and the need of drying. Laboratory results show excellent levelness and fastnesses on the dyeing of poly(ethylene terephthalate) and polyamides. Especially, the good results are achievable for small lots like textile accessories. The state of technical development is briefly described.