Post-treatment agent for washing dispersion dyed textiles - contains a mixt. of ethoxylated, propoxylated and ethoxylated-propoxylated aliphatic oxy-alcohol(s) and a mono:alkyl ortho-phosphate

摘要

A post-treatment agent (I) comprises a mixt. of (a) 50-90 pts.wt. adducts of 3-8 moles ethylene oxide (EO) and 1 mole 12-16C aliphatic oxy-alcohols, (b) 2-15 pts.wt. adducts of 6-14 moles propylene oxide (PO) and 1 mole 8-12C oxy-alcohols, (c) 2-15 pts.wt. 4-19C mono-alkyl orthophosphate and (d) 5-45 pts.wt. adducts of 8-16 moles EO and 3-9 moles PO with 1 mole 11-17C oxy-alcohols. Also claimed is a process for washing dispersion-dyed textiles based on polyester or polyester mixts. using aq. solns. contg. 0.2-5 g/l (I), at 20-120 deg.C. and pH 4-14. Pref., (a) are commercially available adducts fo 13-15C oxy-alcohols with 3-7 EO, (b) are adducts of 9-11C oxy-alcohols and 6-14 PO, (c) is a 6-12C monoalkyl phosphate and (d) are adducts of 13-15C fatty alcohols with 8-16 EO and 3-9 PO. Washing conditions are 60-105 deg.C. and pH 6-11. USE/ADVANTAGE - For colours and prints from dispersion dyes on textile materials. (I) is upto 90% biodegradable, does not foam in aq. washing baths at 10-100 deg.C. and has excellent emulsion stability and washing action; unfixed dispersion dyes are washed out and redn. - sensitive dyes such as reactive dyes and metal complex dyes are practically unaffected, so that (I) can be used even with polyester/cotton mix