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Title:
GROUND FABRIC FOR TUFTED CARPET AND TUFTED CARPET MADE USING THE GROUND FABRIC
Document Type and Number:
WIPO Patent Application WO/2000/065140
Kind Code:
A1
Abstract:
A ground fabric for use in tufted carpets; and a tufted carpet made using the ground fabric. The ground fabric is constituted of a nonwoven fabric made of long fibers of a polylactic acid polymer. The long fibers have a circular cross section and have a birefringence of 12x10¿-3? to 30x10¿-3? and a crystallinity of 15 to 25 wt. %. The long-fiber nonwoven fabric has a thermal shrinkage through 3-minute heating at 120 °C of 1 % or lower in each of the MD and the CD. In the case of using long fibers having a different cross-sectional shape, these long fibers have a crystallinity of 15 to 25 wt. % and the nonwoven fabric made of these has a thermal shrinkage through 3-minute heating at 120 °C of 1 % or lower in each of the MD and the CD.

Inventors:
Matsunaga, Atsushi (Unitika Ltd, Okazaki Plant 4-1 Hinakitamachi Okazaki-shi, Aichi, 44-0911, JP)
Watanabe, Tomoko (Unitika Ltd, Okazaki Plant 4-1 Hinakitamachi Okazaki-shi, Aichi, 444-0911, JP)
Matsunaga, Mamiko (Unitika Ltd, Okazaki Plant 4-1 Hinakitamachi Okazaki-shi, Aichi, 44-0911, JP)
Application Number:
PCT/JP2000/002685
Publication Date:
November 02, 2000
Filing Date:
April 25, 2000
Export Citation:
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Assignee:
UNITIKA LTD. (50 Higashi-Hommachi 1-chome Amagasaki-shi Hyogo, 660-0824, JP)
Matsunaga, Atsushi (Unitika Ltd, Okazaki Plant 4-1 Hinakitamachi Okazaki-shi, Aichi, 44-0911, JP)
Watanabe, Tomoko (Unitika Ltd, Okazaki Plant 4-1 Hinakitamachi Okazaki-shi, Aichi, 444-0911, JP)
Matsunaga, Mamiko (Unitika Ltd, Okazaki Plant 4-1 Hinakitamachi Okazaki-shi, Aichi, 44-0911, JP)
International Classes:
B32B5/00; D01F6/62; D01F8/14; D04H3/011; D04H3/12; D04H3/16; D05C17/02; D06N7/00; (IPC1-7): D04H3/00; D04H11/00; D05C17/02
Attorney, Agent or Firm:
Morimoto, Yoshihiro (All Nippon Airways Building 4th Floor 10-10, Nishi-Hommachi 1-chome Nishi-ku, Osaka-shi Osaka, 550-0005, JP)
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