Patent ID: 8906115

Claim:
A method for the antimicrobial finishing of textiles, fibers, or yarns which consist essentially of synthetic materials, comprising the step of applying to a textile, fiber, or yarn: an aqueous solution comprising 0.01 to 3% by weight of an organic primer component (P), which increases the hydrophobicity of the surface of the textiles or fibers, wherein the primer component (P) is phenylalanine; 70 to 99.5% by weight of the solvent water; 0.1 to 30% by weight of auxiliary components; 0.01 to 3% by weight of an organic quaternary ammonium compound of the general formula (I) as an antimicrobial component (K) wherein the radicals, independently of one another, have the following meanings, R 1 , R 2 , and R 3 are identical and are a branched or unbranched alkyl radical having 1 to 4 carbon atoms; R 4 is methyl; R 5 is a branched or unbranched alkyl radical having 1 to 18 carbon atoms; R 6 is a branched or unbranched alkyl radical having 8 to 18 carbon atoms; and n is an integer from 1 to 4; and 0.01 to 2% by weight of a metal salt component (M) comprising at least one salt of a divalent metal selected from the group consisting of Mg, Ca, Ba, Zn and/or a salt of a trivalent metal from the group Al and Fe.