Patent US4735849A successfully refreshed from Google Patents.
US4735849A
Expired / Lapsed
US
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Non-woven fabric
Assignee: Toray Industries Inc
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Filing: 1986-08-15
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Granted: 1988-04-05
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Expires: 2006-08-15
Abstract
Abstract A non-woven fabric suitable for clothing manufacture, comprising a fiber web substantially formed of a continuous filament of a synthetic fiber, wherein a plurality of weakened portions in a form of a scratch or a crack are distributed on the filament constituting at least one surface of the fiber web. Some of the weakened portions are broken to form free ends, some of which are projected from the fabric surface to form a short fluff, and some of the remaining ends are embedded in the interior of the fiber web and entangled with the filament. The weakened portions of the filament are provided by nipping the fiber web between a pair of rollers, at least one of which has a rough surface formed of a plurality of prominences of hard particles. A punching treatment of the fiber web after the weakened portions has been impaired is effective for breaking the filament to form short fluffs on the fabric surface and for entangling the filaments with each other. A resin treatment before the punching treatment is also favorable.
Inventors
- 👤 Kakuji Murakami
- 👤 Takashi Nakayama
- 👤 Atsumi Morioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:52
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/249921; Y10T428/27; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2973; Y10T428/2978; Y10T442/00; Y10T442/60; Y10T442/637; Y10T442/64
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
97 words
A non-woven fabric suitable for clothing manufacture, comprising a fiber web substantially formed of a continuous filament of a synthetic fiber, wherein a plurality of weakened portions in a form of a scratch or crack are distributed on the filament constituting at least one surface of the fiber web; some of the weakened portions being broken to form free ends, some of the free ends being projected from the fabric surface to form a short fluff, and some of the remaining ends being embedded in the interior of the fiber web while being entangled with the filament.
Claim 2
Dependent Claim
97 words
A non-woven fabric suitable for clothing manufacture, comprising a fiber web substantially formed of a continuous filament of a synthetic fiber, wherein a plurality of weakened portions in a form of a scratch or crack are distributed on the filament constituting at least one surface of the fiber web; some of the weakened portions being broken to form free ends, some of the free ends being projected from the fabric surface to form a short fluff, and some of the remaining ends being embedded in the interior of the fiber web while being entangled with the filament.
Claim 3
Dependent Claim
19 words
A non-woven fabric as defined by claim 1, wherein a resin is coated or impregnated in the fiber web.
Claim 4
Dependent Claim
33 words
A non-woven fabric as defined by claim 1, wherein a resin is coated on or impregnated in the fiber web, and a plurality of micro-pores for air permeation are provided throughout the fabric.
Claim 5
Dependent Claim
22 words
A non-woven fabric as defined by claim 1, wherein the filament is a polyamide fiber of from 0.05 denier to 5.0 denier.
Claim 6
Dependent Claim
22 words
A non-woven fabric as defined by claim 1, wherein the filament is a polyester fiber of from 0.05 denier to 5.0 denier.
Claim 7
Dependent Claim
34 words
A non-woven fabric as defined by claim 1, wherein the filament is a conjugated composite fiber consisting of a plurality of components, selected from a group of an island-in-sea type and a splittable type.
Claim 8
Dependent Claim
19 words
A non-woven fabric as defined by claim 1, wherein the fiber web comprises a staple fiber as a sub-component.
Claim 9
Dependent Claim
33 words
A non-woven fabric as defined by claim 1, wherein a pilling resistance of the non-woven fabric is not lower than the third grade after a 5 hour test defined by a I.C.I method.
Claim 10
Dependent Claim
29 words
A non-woven fabric as defined by claim 1, wherein a weight of the non-woven fabric is in a range of from 10 g/m 2 to 300 g/m 2 .
Claim 11
Dependent Claim
32 words
A non-woven fabric as defined by claim 2 or 3, wherein a weight of the resin is in a range of from 1% to 80% relative to a weight of the fiber.
Claim 12
Dependent Claim
15 words
A non-woven fabric as defined by claim 2 or 3, wherein the resin is polyurethane.
Claim 13
Dependent Claim
18 words
A non-woven fabric as defined by any one of the preceding claims, wherein the non-woven fabric is print-dyed.
Claim 14
Dependent Claim
19 words
A non-woven fabric as defined by any one of claims 1 through 11, wherein the non-woven fabric is dip-dyed.
References Cited (Backward Citations)
US3494821A
Cited
BE748445A
Cited
US4245001A
Cited
US4331724A
Cited
US4623575A
Cited
US4612228A
Cited
JPS5966554A
Cited
US4576858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |