The invention relates to a wet-on-wet dyeing process comprising (A) impregnating the substrate with an acid dyeing liquor containing an anionic dye having a K'.sub.pH6 -value.gtoreq.5 (B) applying locally to the substrate at room temperature, a liquor or paste containing an alkoxylated fatty amine or polyamine having affinity for anionic dyes with a K'.sub.pH6 -value.gtoreq.5, said step (B) being carried out directly after or directly before said step (A), and (C) subsequently submitting the substrate to a heat treatment to effect fixation of the dye.
本发明涉及一种湿法染色过程,包括(A)用含有K'.sub.pH6值大于或等于5的阴离子
染料的
酸性染料液浸渍基材;(B)在室温下直接在基材上局部涂布含有亲和力对阴离子
染料具有K'.sub.pH6值大于或等于5的烷基氧基化脂肪胺或聚胺的液浆或糊状物,步骤(B)在步骤(A)之后或之前直接进行;(C)随后将基材进行热处理以使
染料固定。