Phosphatidylcholine unilamellar liposomes as vehicles for a 1:2 metal‐complex dye in wool dyeing

Studies on the use of large unilamellar liposomes of defined size (400 nm) as carriers of a 1:2 metalcomplex dye for untreated wool fibres are described. Liposomes made from egg phosphatidylcholine (PC) containing CI Acid Yellow 129 (weakly polar) were investigated. The total lipid concentration of liposomes varied from 0.56 to 6.81% o.w.f (corresponding to 0.25–3.0 mmol/l) and the dye concentration from 0.1 to 1.0% o.w.f. The physical stability...