US4418104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fur-like napped fabric and process for manufacturing same
Assignee: Toray Industries Inc
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Filing: 1982-05-27
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Granted: 1983-11-29
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Expires: 2002-05-27
Abstract
Abstract A fur-like napped fabric and process for manufacturing same are disclosed wherein a fiber layer comprising uncrimped short fibers or short fibers having a number of crimps of not greater than 10 crimps per inch are provided as a fiber layer on a base fabric. The fibers are then implanted into the base fabric by needle punching. Thereafter, the fibers are raised to form a nap. After needle punching, the base fabric and fibers may be bonded to each other by means of a backing treatment or the like which is carefully applied so as not to permeate the raised hair portion extending on the front surface of the fabric. Especially pleasing aesthetic effects are produced when the napped fibers have static frictional coefficients of less than 0.35 and wherein the bending recovery rate of said fibers is higher than 50%.
Inventors
- 👤 Yoshiteru Kiyomura
- 👤 Yutaka Masuda
- 👤 Tatsuji Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:29
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/08; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/23936; Y10T428/2395; Y10T428/23957
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
114 words
In a fur-like fabric of the type having a base cloth and a multiplicity of napped fibers extending from said base cloth the improvement wherein: (a) said napped fibers comprise sharpened tip portions disposed at at least one endwise fiber portion thereof; (b) said napped fibers being implanted in said base fabric by needle punching and raised from said points of implantation; (c) said points of implantation are not interconnected by said napped fibers; (d) said napped fibers are non-uniform in length; (e) said napped fibers are substantially uncrimped; (f) said napped fibers are parallel with substantially no intertwining therebetween; and (g) said napped fibers have a static frictional coefficient of less than 0.35.
Claim 2
Dependent Claim
114 words
In a fur-like fabric of the type having a base cloth and a multiplicity of napped fibers extending from said base cloth the improvement wherein: (a) said napped fibers comprise sharpened tip portions disposed at at least one endwise fiber portion thereof; (b) said napped fibers being implanted in said base fabric by needle punching and raised from said points of implantation; (c) said points of implantation are not interconnected by said napped fibers; (d) said napped fibers are non-uniform in length; (e) said napped fibers are substantially uncrimped; (f) said napped fibers are parallel with substantially no intertwining therebetween; and (g) said napped fibers have a static frictional coefficient of less than 0.35.
Claim 3
Dependent Claim
18 words
A fur-like fabric as defined in claim 1, wherein said implantation points are irregular in the arrangement thereof.
Claim 4
Dependent Claim
17 words
A fur-like fabric as defined in claim 1, further including down hair portions adjacent said base fabric.
Claim 5
Dependent Claim
20 words
A fur-like fabric as defined in claim 1, wherein said napped fibers have static frictional coefficients of less than 0.30.
Claim 6
Dependent Claim
19 words
A fur-like fabric as defined in claim 1, wherein said napped fibers have bending recovery rates higher than 50%.
Claim 7
Dependent Claim
18 words
A fur-like fabric as defined in claim 1, wherein said napped fibers are of the polybutylene terephthalate series.
Claim 8
Dependent Claim
118 words
A process for manufacturing a fur-like fabric mainly covered with nap, which comprises the steps of: forming fiber layer comprised of short, substantially uncrimped fibers having tapered tip portions on a base fabric, implanting said fibers into said base fabric by needle punching, such that said implantation points are irregular in arrangement, raising said fibers from said implantation points to produce a raised fiber surface wherein the portions between the implantation points are not interconnected by the raised fibers, the raised fibers are non-uniform in length and the raised fibers are parallel with substantially no intertwining therebetween; and reducing the static frictional coefficient of the fibers constituting the raised nap to less than 0.35 with a finishing agent.
Claim 9
Dependent Claim
118 words
A process for manufacturing a fur-like fabric mainly covered with nap, which comprises the steps of: forming fiber layer comprised of short, substantially uncrimped fibers having tapered tip portions on a base fabric, implanting said fibers into said base fabric by needle punching, such that said implantation points are irregular in arrangement, raising said fibers from said implantation points to produce a raised fiber surface wherein the portions between the implantation points are not interconnected by the raised fibers, the raised fibers are non-uniform in length and the raised fibers are parallel with substantially no intertwining therebetween; and reducing the static frictional coefficient of the fibers constituting the raised nap to less than 0.35 with a finishing agent.
Claim 10
Dependent Claim
27 words
A process for manufactureing a fur-like fabric as defined in claim 7, further including the step of substantially removing those fibers not implanted into the base cloth.
Claim 11
Dependent Claim
29 words
A process for manufacturing a fur-like fabric as defined in claim 7, further including the step of backing the base fabric at the reverse surface before the raising step.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |