Search International and National Patent Collections

1. (WO1998053132) NATURAL FIBERS CONTAINING TITANIUM OXIDE AND PROCESS FOR PRODUCING THE SAME

Pub. No.:    WO/1998/053132    International Application No.:    PCT/JP1998/002188
Publication Date: Fri Nov 27 00:59:59 CET 1998 International Filing Date: Tue May 19 01:59:59 CEST 1998
IPC: D06M 11/46
Applicants: KYORASHA CO., LTD.

MORITOSHI KABUSHIKIKAISHA

MORI, Takefumi

Inventors: MORI, Takefumi

Title: NATURAL FIBERS CONTAINING TITANIUM OXIDE AND PROCESS FOR PRODUCING THE SAME
Abstract:
Natural fibers whose surfaces have been plated with titanium oxide. Scoured wool is immersed in a solution of acetic anhydride (10 wt.%) in DMF (90 wt.%). The solution containing the wool is heated to 50 °C and kept at this temperature for 30 minutes to make the wool anionic. This wool is washed with water and then immersed in a 2.0 % owf aqueous solution of at least either of a titanium alkoxide and titanium fluoride at ordinary temperature for 30 miunutes. Subsequently, a 0.5/1/1 (by weight) mixture of boric acid, citric acid, and D,L-malic acid is added to the aqueous solution in an amount of 0.5 % owf. The wool is thus treated at 50 °C for 30 min and then washed with water. Thus, natural fibers whose surfaces have been plated with titanium oxide can be obtained.