| (19) |
 |
|
(11) |
EP 0 413 280 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
30.10.1991 Bulletin 1991/44 |
| (43) |
Date of publication A2: |
|
20.02.1991 Bulletin 1991/08 |
| (22) |
Date of filing: 11.08.1990 |
|
|
| (84) |
Designated Contracting States: |
|
DE ES FR GB IT NL |
| (30) |
Priority: |
16.08.1989 JP 210180/89
17.08.1989 JP 210689/89
19.07.1990 JP 189455/90
30.07.1990 JP 199204/90
|
| (71) |
Applicant: TEIJIN LIMITED |
|
Osaka-shi
Osaka 541 (JP) |
|
| (72) |
Inventors: |
|
- Shinoki, Takanori
Kawanishi-shi,
Hyogo (JP)
- Yamamoto, Nobuyuki
Ibaraki-shi,
Osaka (JP)
- Yamamura, Yasuo
Masaki-cho,
Iyo-gun Ehime (JP)
|
| (74) |
Representative: Hoeger, Stellrecht & Partner |
|
Uhlandstrasse 14 c
70182 Stuttgart
70182 Stuttgart (DE) |
|
| |
|
| (54) |
Polyamide-polyester composite fiber and process for producing same |
(57) Polyamide-polyester side-by-side type composite fibers useful for bulky nonwoven
fabrics, which comprise a polyamide filamentary segment and a polyester copolymer
filamentary segment comprising an aromatic dicarboxylic acid component comprising
2.0 to 10.0 molar% of 5-sodiumsulfo-isophthalic acid and the balance consisting of
terephthalic acid and a glycol component comprising at least on C₂-C₁₀ alkylene glycol,
and have a crimp number of 2 crimps/25 mm or less in water or under a wet condition
at 100°C or less and of 5 crimps/25 mm or more under an equilibrium condition at a
temperature of 20°C at 65% RH.