Stain preventive treatment process for polyamide fiber
AssigneeNicca Chemical Co., Ltd.
InventorsJuji Uchida, Katsuya Okumura, Masayuki Maeno
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Abstract
A staining preventive treatment process for polyamide fiber which comprises the application of the compound of general formula I below and the compound of general formula II below to the polyamide fiber: ##STR1## in which R independently represents ##STR2## X independently represents hydrogen or alkali metal, and 1 is a number from 3 to 20, provided that 50-70% of R is ##STR3## and the remainder is at least one group selected from --OX, ##STR4## in which A represents ##STR5## X independently represents hydrogen or alkali metal, m is an integer from 2 to 6, and n is 0, 1, or 2. Staining by natural or artificial coloring agents is effectively prevented.
Claims10
A staining preventive treatment process for polyamide fiber which comprises the application of a compound of general formula I below and a compound of general formula II below to the polyamide fiber, ##STR11## in which R independently represents --OX ##STR12## X independently represents hydrogen or alkali metal, and 1 is a number from 3 to 20, provided that 50-70% of R is ##STR13## and the remainder is at least one group selected from --OX, ##STR14## in which A represents ##STR15## X independently represents hydrogen or alkali metal, m is an integer from 2 to 6, and n is 0, 1, or 2.
Dependencies are inferred from the claim text.