US4145468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite fabric comprising a non-woven fabric bonded to woven or knitted fabric
Assignee: Asahi Kasei Corp
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Filing: 1977-01-31
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Granted: 1979-03-20
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Expires: 1997-01-31
Abstract
Abstract A composite fabric useful as a substratam sheet for artificial leather is composed of a woven or knitted fabric constituent and at least one non-woven fabric constituent consisting of numerous fibrous bundles composed of a plurality of individual fibers arranged parallel to each other, and varying in the number of the individual fibers from which the bundles are formed, and numerous individual fibers independent from each other and from the fibrous bundles, the individual fibers and the fibrous bundles being randomly distributed and entangled with each other to form a body of non-woven fabric, and the non-woven fabric constituent and woven or knitted fabric constituent being superimposed and bonded together, to form a body of composite fabric, in such a manner that portions of the individual fibers and the fibrous bundles of the non-woven fabric constituent penetrate into the inside of the woven or knitted fabric and are entangled with a portion of fibers in the woven or knitted fabric constituent.
Inventors
- 👤 Takahisa Mizoguchi
- 👤 Hiroshi Henmi
- 👤 Tsukasa Shima
- 👤 Yasuhiko Yamashita
- 👤 Shinichi Uematsu
- 👤 Kazuo Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:26
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; B32B5/024; B32B5/026; B32B5/06; B32B2262/00; B32B2262/02; B32B2262/0246; B32B2262/0253; B32B2262/0261; B32B2262/0276; B32B2262/04; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/12; Y10T428/12993; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/3715
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
160 words
A composite fabric comprising a woven or knitted fabric constituent and at least one non-woven fabric constituent consisting of numerous fibrous bundles composed of a plurality of individual fibers arranged parallel to each other, and varying in the number of said individual fibers from which said bundles are formed, and numerous individual fibers independent from each other and from said fibrous bundles, said individual fibers and said fibrous bundles having a length of 15 mm or less and being randomly distributed and entangled with each other to form a body of non-woven fabric, and said non-woven fabric constituent and woven or knitted fabric constituent being superimposed and bonded together, to form a body of composite fabric, in such a manner that portions of said individual fibers and said fibrous bundles of said non-woven fabric constituent penetrate into the inside of said woven or knitted fabric and are entangled with a potion of fibers in said woven or knitted fabric constituent.
Claim 2
Dependent Claim
160 words
A composite fabric comprising a woven or knitted fabric constituent and at least one non-woven fabric constituent consisting of numerous fibrous bundles composed of a plurality of individual fibers arranged parallel to each other, and varying in the number of said individual fibers from which said bundles are formed, and numerous individual fibers independent from each other and from said fibrous bundles, said individual fibers and said fibrous bundles having a length of 15 mm or less and being randomly distributed and entangled with each other to form a body of non-woven fabric, and said non-woven fabric constituent and woven or knitted fabric constituent being superimposed and bonded together, to form a body of composite fabric, in such a manner that portions of said individual fibers and said fibrous bundles of said non-woven fabric constituent penetrate into the inside of said woven or knitted fabric and are entangled with a potion of fibers in said woven or knitted fabric constituent.
Claim 3
Dependent Claim
22 words
A composite fabric as claimed in claim 1, wherein said woven or knitted fabric constituent is interposed between two non-woven fabric constituents.
Claim 4
Dependent Claim
22 words
A composite fabric as claimed in claim 1, wherein one woven or knitted fabric constituent is superimposed on one non-woven fabric constituent.
Claim 5
Dependent Claim
28 words
A composite fabric as claimed in claim 1, wherein said individual fibers in said non-woven fabric constituent are extremely fine fibers having a denier of 0.5 or less.
Claim 6
Dependent Claim
25 words
A composite fabric as claimed in claim 1, wherein said individual fibers in said non-woven fabric constituent are regenerated cellulose fibers, or synthetic polymeric fibers.
Claim 7
Dependent Claim
22 words
A composite fabric as claimed in claim 5, wherein said regenerated cellulose fiber is a viscose rayon fiber or cuprammonium rayon fiber.
Claim 8
Dependent Claim
20 words
A composite fabric as claimed in claim 5, wherein said synthetic polymeric fiber is a polyamide, polyester or polypropylene fiber.
Claim 9
Dependent Claim
25 words
A composite fabric as claimed in claim 1, wherein said woven or knitted fabric constituent has a weight of 10 to 100 g/m 2 .
Claim 10
Dependent Claim
31 words
A composite fabric as claimed in claim 2, wherein said woven or knitted fabric constituent has a weight of 40% or less based on the total weight of said composite fabric.
Claim 11
Dependent Claim
31 words
A composite fabric as claimed in claim 3, wherein said woven or knitted fabric constituent has a weight of 60% or less based on the total weight of said composite fabric.
Claim 12
Dependent Claim
24 words
A composite fabric as claimed in claim 1, wherein said fibrous bundles in said non-woven fabric constituent have a denier of 1 to 200.
Claim 13
Dependent Claim
24 words
A composite fabric as claimed in claim 11, wherein said denier of said fibrous bundles in said non-woven fabric constituent is 2 to 60.
Claim 14
Dependent Claim
23 words
A composite fabric as claimed in claim 1, wherein said composite fabric has an average density of 0.2 to 0.5 g/cm 2 .
Claim 15
Dependent Claim
30 words
A composite fabric as claimed in claim 1, wherein numerous piles consisting of said individual fibers and said fibrous bundles are formed on the surface of said non-woven fabric constituent.
Claim 16
Dependent Claim
182 words
A composite fabric comprising a woven or knitted fabric constituent having a weight of 10 to 100 g/m 2 and two non-woven fabric constituents each consisting of numerous fibrous bundles composed of a plurality of individual fibers arranged parallel to each other and varying in the number of said individual fibers from which said bundles are formed, and numerous individual fibers independent from each other and from said fibrous bundles, said individual fibers and said fibrous bundles having a length of 15 mm or less and being randomly distributed and entangled with each other to form a body of non-woven fabric, said individual fibers having a denier of 0.5 or less, and said woven or knitted fabric constituent being interposed between said two non-woven fabric constituents and bonded all together to form a body of composite fabric in such a manner that portions of said individual fibers and said fibrous bundles of said non-woven fabric constituents penetrate into the inside of said woven or knitted fabric and are entangled with a portion of the fibers in said woven or knitted fabric constituent.
Claim 17
Dependent Claim
182 words
A composite fabric comprising a woven or knitted fabric constituent having a weight of 10 to 100 g/m 2 and two non-woven fabric constituents each consisting of numerous fibrous bundles composed of a plurality of individual fibers arranged parallel to each other and varying in the number of said individual fibers from which said bundles are formed, and numerous individual fibers independent from each other and from said fibrous bundles, said individual fibers and said fibrous bundles having a length of 15 mm or less and being randomly distributed and entangled with each other to form a body of non-woven fabric, said individual fibers having a denier of 0.5 or less, and said woven or knitted fabric constituent being interposed between said two non-woven fabric constituents and bonded all together to form a body of composite fabric in such a manner that portions of said individual fibers and said fibrous bundles of said non-woven fabric constituents penetrate into the inside of said woven or knitted fabric and are entangled with a portion of the fibers in said woven or knitted fabric constituent.
References Cited (Backward Citations)
US3932687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |