COLORED POLYAMIDE FIBER AND PROCESS FOR PRODUCING THE SAME

Title:

COLORED POLYAMIDE FIBER AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2006/095621

Kind Code:

A1

Abstract:

Colored polyamide fibers which comprise a polyamide resin, a pigment, a coupling agent, and a compound represented by the following general formula (I): R'-CO-NH-R-NH-CO-R' (I) (wherein R represents C_1-4 alkylene; and R' and R' each independently represents a C_9-18 aliphatic hydrocarbon group). Even when a raw material composition containing the pigment in a high concentration is used, the colored polyamide fibers can be produced therefrom without causing bending or fiber breakage during melt spinning. The pigment has been evenly dispersed in the colored polyamide fibers. The fibers hence has a high color density and a high strength. The colored polyamide fibers are suitable for use in producing artificial leathers.

Inventors:

Ashida, Tetsuya c/o Kuraray Co. Ltd. (2-1, Kaigandori 1-chom, Okayama-shi Okayama 01, 70286, JP)
Yoshimoto, Shinichi c/o Kuraray Co. Ltd. (2-1, Kaigandori 1-chom, Okayama-shi Okayama 01, 70286, JP)
Yoneda, Hisao c/o Kuraray Co. Ltd. (2-1, Kaigandori 1-chom, Okayama-shi Okayama 01, 70286, JP)
Takahashi, Yusuke c/o Dainichiseika Color & Chemicals Mfg. Co. Ltd. (7-6, Nihonbashi Bakuro-cho 1-chom, Chuo-ku Tokyo 83, 10383, JP)
Tomita, Kenjiro c/o Dainichiseika Color & Chemicals Mfg. Co. Ltd. (7-6, Nihonbashi Bakuro-cho 1-chom, Chuo-ku Tokyo 83, 10383, JP)
Hotta, Minoru c/o Dainichiseika Color & Chemicals Mfg. Co. Ltd. (7-6, Nihonbashi Bakuro-cho 1-chom, Chuo-ku Tokyo 83, 10383, JP)

Application Number:

PCT/JP2006/303876

Publication Date:

September 14, 2006

Filing Date:

March 01, 2006

Export Citation:

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Assignee:

KURARAY CO., LTD. (1621, Sakazu Kurashiki-shi, Okayama 22, 71086, JP)
DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD. (7-6 Nihonbashi Bakuro-cho 1-chome, Chuo-ku, Tokyo 83, 10383, JP)
Ashida, Tetsuya c/o Kuraray Co. Ltd. (2-1, Kaigandori 1-chom, Okayama-shi Okayama 01, 70286, JP)
Yoshimoto, Shinichi c/o Kuraray Co. Ltd. (2-1, Kaigandori 1-chom, Okayama-shi Okayama 01, 70286, JP)
Yoneda, Hisao c/o Kuraray Co. Ltd. (2-1, Kaigandori 1-chom, Okayama-shi Okayama 01, 70286, JP)
Takahashi, Yusuke c/o Dainichiseika Color & Chemicals Mfg. Co. Ltd. (7-6, Nihonbashi Bakuro-cho 1-chom, Chuo-ku Tokyo 83, 10383, JP)
Tomita, Kenjiro c/o Dainichiseika Color & Chemicals Mfg. Co. Ltd. (7-6, Nihonbashi Bakuro-cho 1-chom, Chuo-ku Tokyo 83, 10383, JP)
Hotta, Minoru c/o Dainichiseika Color & Chemicals Mfg. Co. Ltd. (7-6, Nihonbashi Bakuro-cho 1-chom, Chuo-ku Tokyo 83, 10383, JP)

International Classes:

D01F6/90; D01F8/12; D06N3/00; D01F6/88; D01F8/12; D06N3/00

Attorney, Agent or Firm:

Ohtani, Tamotsu (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chom, Minato-ku Tokyo 01, 10500, JP)

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