Method of manufacturing a regenerated collagen fiber dyed and the dye fixing method, the regenerated collagen fibers of regenerated collagen fibers are dyed, artificial hair, dyed

摘要

A dyed regenerated collagen fiber of the invention is a regenerated collagen fiber dyed with a dye and having an excellent dye fastness. An aspect of the invention is directed to a dyed regenerated collagen fiber including at least one kind of a compound selected from the group consisting of polyalkylenepolyamine compounds, condensation compounds of polyalkylenepolyamine and dicyandiamide, and acid addition salt compounds of the condensation compounds.