Claims
- 1. A napped fabric comprising naps of a tapered fiber comprising a sheath-core composite polyester fiber tapered to at least one end thereof, said fiber satisfying the following conditions:
- a) the ratio of the rates of alkali hydrolysis between the sheet component and the core component is: ##EQU5## b) the core contains 0 to 0.2% by weight of a delusterant and the sheath at least 0.3% by weight thereof;
- c) the tapered part other than that with exposed core forms an irregularly roughened surface with the recisions having a diameter measured in a circumferential direction perpendicular to the fiber axis of 0.2 to 0.7 .mu. and being present in a density of 10 to 1,000 pieces/100 .mu..sup.2 ; and
- d) the fiber has its core exposed at the end and is tapered to the end in a length of at least 20% of its whole raised length;
- wherein said naps have a nap length of not more than 5 mm.
- 2. A napped fabric according to claim 1, wherein said fiber is tapered to the end in a length of 20 to 50% of its whole raised length.
- 3. A napped fabric according to claim 1, wherein said sheath-core composite polyester fiber comprises a core comprising a polybutylene terephthalate polymer or a polyethylene naphthalate polymer and a sheath comprising a polyester and 0.3 to 5% by weight of a delusterant of silica having an average particle size of not more than 0.2.mu..
- 4. The napped fabric of claim 1, wherein said sheath-core composite polyester fiber has a fineness of the substantially untapered part of 2 to 6 deniers.
- 5. The napped fabric of claim 4, wherein the ratio by weight of the core component to sheath component at the untapered part thereof is in the range of 20:80 to 70:30.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2-52292 |
Mar 1990 |
JPX |
|
2-180319 |
Jul 1990 |
JPX |
|
Parent Case Info
This application is a Division of application Ser. No. 08/019,346, filed on Feb. 18, 1993, now abandoned.
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Divisions (1)
|
Number |
Date |
Country |
Parent |
19346 |
Feb 1993 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
654049 |
Feb 1991 |
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