Claims
- 1. A pile fabric having a two-layer pile construction, said pile fabric comprising:
- a ground construction;
- guard hair fibers connected to said ground construction and having various raised lengths ranging from about zero to a maximum guard hair fiber length, each said guard hair fiber being tapered and having a thickness not less than about 3 denier and not more than about 100 denier, said guard hair fibers being formed from polybutylene terephthalate or a copolymer having polybutylene terephthalate as a main component thereof; and
- under-fur fibers connected to said ground construction and having various raised lengths and a maximum under-fur fiber length not exceeding about 70% of said maximum guard hair fiber length, about 20% to 80% of said under-fur fibers having a substantially uniform length substantially corresponding to said maximum under-fur fiber length, said under-fur fibers with said substantially uniform length having tapered leading ends, said under-fur fibers being formed from polyethylene terephthalate or a copolymer having polyethylene terephthalate as a main component thereof, and said under-fur fibers being less resistant to chemical treatment than said guard hair fibers, each said under-fur fiber having a thickness not more than about 5 denier.
- 2. A pile fabric having a two-layer construction comprising a ground construction; guard hair fibers connected to said ground construction and formed from a guard hair material, said guard hair fibers having tapered ends and a maximum guard hair fiber length; and under-fur fibers connected to said ground construction and formed from an under-fur material that is less resistant to a chemical treatment agent than said guard hair fiber material, said under-fur fibers having a maximum under-fur fiber length, about 20% to 80% of said under-fur fibers having a substantially uniform length substantially corresponding to said maximum under-fur fiber length, said under-fur fibers with said substantially uniform length having tapered ends; said pile fabric being produced by steps including:
- (a) forming a preliminary pile fabric with a hair raised surface from under-fur staple fibers and guard hair staple fibers;
- (b) preparing said chemical treatment agent with a viscosity greater than 150 poise to about 500 poise;
- (c) applying a substantially uniform layer of said chemical treatment agent on said hair raised surface by coating said hair raised surface of said preliminary pile fabric with said chemical treatment agent;
- (d) forcing permeation of said chemical treatment agent into at least a portion of said hair raised surface by pressing said hair raised surface after said hair raised surface is coated with said chemical treatment agent; and
- (e) shortening a portion of said under-fur staple fibers to said substantially uniform length substantially corresponding to said maximum under-fur fiber length and providing said under-fur staple fibers having said substantially uniform length with said tapered leading ends by treating said hair raised surface pressed with said chemical treatment agent.
- 3. A method for producing a pile fabric having a two-layer pile construction, said method comprising the steps of:
- (a) providing polyester guard hair fibers with tapered ends and polyester under-fur fibers that are less resistant to alkali treatment than said guard hair fibers;
- (b) blending said guard hair fibers with said under-fur fibers to form pile fibers;
- (c) knitting or weaving said pile fibers to form a double woven fabric;
- (d) separating said double woven fabric to form a pile fabric having a hair raised surface and a rear side;
- (e) applying a backing treatment to said rear side of said pile fabric;
- (f) providing an alkali treating agent having a viscosity greater than 150 poise to about 500 poise and coating said hair raised surface of said pile fabric with said alkali treating agent;
- (g) forcing said alkali treating agent to permeate at least a portion of said hair raised surface of said pile fabric by pressing said pile fabric after said pile fabric is coated with said alkali treating agent; and
- (h) shortening a portion of said under-fur fibers to a substantially uniform maximum under-fur fiber length not exceeding about 70% of a maximum guard hair fiber length and sharpening leading ends of said portion of said under-fur fibers by subjecting said pile fabric pressed with said alkali treating agent to a dry heat treatment or a wet heat treatment.
- 4. The method set forth in claim 3, wherein said step of providing said polyester guard hair fibers and said polyester under-fur fibers includes forming said guard hair fibers from polybutylene terephthalate or a copolymer having polybutylene terephthalate as a main component thereof and forming said under-fur fibers from polyethylene terephthalate or a copolymer having polyethylene terephthalate as a main component thereof.
- 5. The method set forth in claim 3, wherein said step of pressing said pile fabric is effected using nip rolls.
- 6. The method set forth in claim 3, wherein said dry heat treatment is performed at about 130.degree. C. for about 3 to 10 minutes.
- 7. The method set forth in claim 5, wherein said nip rolls press said pile fabric to a thickness in the range of about 0.3 to 0.7 times the thickness of said pile fabric prior to said step of pressing.
- 8. The method set forth in claim 3, wherein said wet heat treatment is performed at about 100.degree. C. for about 3 to 10 minutes.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-271363 |
Oct 1990 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/859,518, filed as PCT/JP91/01350, Oct. 4, 1991, published as WO92/06233, Apr. 16, 1992, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0016450 |
Jan 1980 |
EPX |
0048609 |
Mar 1982 |
EPX |
0070903 |
Sep 1983 |
EPX |
54-28442 |
Sep 1979 |
JPX |
55-57069 |
Apr 1980 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
859518 |
Jun 1992 |
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