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1. (WO1998053132) NATURAL FIBERS CONTAINING TITANIUM OXIDE AND PROCESS FOR PRODUCING THE SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/053132 International Application No.: PCT/JP1998/002188
Publication Date: 26.11.1998 International Filing Date: 18.05.1998
Chapter 2 Demand Filed: 09.10.1998
IPC:
D06M 11/46 (2006.01)
D TEXTILES; PAPER
06
TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
M
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0664
11
Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
32
with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
36
with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
46
Oxides or hydroxides of elements of the fourth Group of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
Applicants:
KYORASHA CO., LTD. [JP/JP]; 539, Yamabushiyama-cho Nishikikouji-agaru Muromachi-douri Nakagyo-ku, Kyoto-shi Kyoto 604-8156, JP (AllExceptUS)
MORITOSHI KABUSHIKIKAISHA [JP/JP]; 77, Aza-Tsujinishi Oaza-Tamanoi, Kisogawa-cho Haguri-gun Aichi 493-0004, JP (AllExceptUS)
MORI, Takefumi [JP/JP]; JP (UsOnly)
Inventors:
MORI, Takefumi; JP
Agent:
IKEUCHI, Hiroyuki ; Umeda Plaza Building Suite 401 3-25, Nishitenma 4-chome Kita-ku, Osaka-shi Osaka 530-0047, JP
Priority Data:
9/13392323.05.1997JP
Title (EN) NATURAL FIBERS CONTAINING TITANIUM OXIDE AND PROCESS FOR PRODUCING THE SAME
(FR) FIBRES NATURELLES CONTENANT DE L'OXYDE DE TITANE ET LEUR PROCEDE DE PRODUCTION
Abstract:
(EN) 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.
(FR) L'invention concerne des fibres naturelles dont les surfaces ont été revêtues d'oxyde de titane. De la laine lavée à chaud est immergée dans une solution d'anhydride acétique (10 % en poids) dans du n,n-diméthylformamide (90 % en poids). La solution contenant la laine est chauffée à 50 °C et maintenue à cette température pendant 30 minutes pour rendre la laine anionique. Cette laine est lavée à l'eau et ensuite immergée dans une solution aqueuse en quantité égale à 2,0 % du poids des fibres et composée d'au moins un alcoxyde de titane ou d'un fluorure de titane à température normale pendant 30 minutes. Ensuite, un mélange de 0,5/1/1 (en poids) d'acide borique, d'acide citrique, et d'acide D,L-maléique est ajouté à la solution aqueuse en une quantité de 0,5 % du poids des fibres. La laine est ainsi traitée à 50 °C durant 30 minutes puis lavée à l'eau. On obtient ainsi des fibres naturelles dont les surfaces ont été revêtues d'oxyde de titane.
Designated States: CN, JP, KR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
KR1020010012855EP0997575US6265064CN1257560