METHOD FOR TREATING PROTEIN FIBER PRODUCT

Japanese Patent JP3548758

B2

PROBLEM TO BE SOLVED: To impart shrink-resistance to a protein fiber product at a low temperature without carrying out treatment by ozone or plasma without using a chlorine-based oxidizing agent, an enzyme or a resin and without removing scale of animal hair such as wool.
SOLUTION: The method for treating the protein fiber product comprises impregnating a protein fiber product into a first aqueous solution containing 0.5-3 wt.% ammonium salt and having pH 5.0-8.5, treating the protein fiber product for 20-60 min at 30-60°C, impregnating the protein fiber product treated with the first aqueous solution into a second aqueous solution having pH 3-9 and containing 6-12 wt.% shape-stabilizing agent and 0.1-12 wt.% first protein, drying the impregnated protein fiber product at 100-130°C for 1-10 min, impregnating the protein fiber product treated with the second aqueous solution into a third aqueous solution having pH 1-3 and containing 0.5-2.0 wt.% organic acid and 0.1-1.2 wt.% second protein and treating the treated protein fiber product at 15-35°C for 10-60 min and impregnating the protein fiber product treated with the third aqueous solution into a fourth aqueous solution having pH 7.5-9.5 and containing 0.1-1.5 wt.% alkali agent and treating the treated protein fiber product at 30-50°C for 10-60 min.

Hiroshi Mizutani
Kuniyoshi Nomura
Masanori Tajima

JP2002076900A

July 28, 2004

March 19, 2002

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Shinkin Kogyo Co., Ltd.

D06M11/00; D06M11/51; D06M11/54; D06M11/60; D06M11/76; D06M13/203; D06M15/00; D06M15/15; D06M23/00; D06M101/12; (IPC1-7): D06M15/15; D06M11/54; D06M11/60; D06M11/76; D06M13/203; D06M15/00

JP9250080A

Masayoshi Suda

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