Patent US4490425A successfully refreshed from Google Patents.
US4490425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fused and needled nonwoven interlining fabric
Assignee: Carl Freudenberg KG
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Filing: 1983-10-14
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Granted: 1984-12-25
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Expires: 2003-10-14
Abstract
Abstract A soft, fluffy, bulky, nonwoven fabric is disclosed which is made from bonded or at least partially fused fibers which have been needle-punctured.
Inventors
- 👤 Jurgen Knoke
- 👤 Manfred Jost
- 👤 Bohuslav Tecl
- 👤 Erich Fahrbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:54
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/08; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/48; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/24843; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/666; Y10T442/667; Y10T442/69
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
A soft, fluffy, bulk, nonwoven fabric which comprises a nonwoven cloth of staple or endless fibers or mixtures thereof, said cloth comprising a mixture of about 10-80% of thermoplastically softenable fibers and the remainder being cofibers, the fibers of said cloth being bound together by the spot fusing of said thermoplastically softenable fibers by heating portions of said cloth to completely fuse said thermoplastically softenable fibers, said cofibers remaining unfused during said heating, said fused nonwoven cloth being punctured on at least on side with from 20-100 barbed needles per square centimeter of said cloth so as to produce a soft, fluffy surface on the side of the said nonwoven cloth from which said barbed needles emerge.
Claim 2
Dependent Claim
117 words
A soft, fluffy, bulk, nonwoven fabric which comprises a nonwoven cloth of staple or endless fibers or mixtures thereof, said cloth comprising a mixture of about 10-80% of thermoplastically softenable fibers and the remainder being cofibers, the fibers of said cloth being bound together by the spot fusing of said thermoplastically softenable fibers by heating portions of said cloth to completely fuse said thermoplastically softenable fibers, said cofibers remaining unfused during said heating, said fused nonwoven cloth being punctured on at least on side with from 20-100 barbed needles per square centimeter of said cloth so as to produce a soft, fluffy surface on the side of the said nonwoven cloth from which said barbed needles emerge.
Claim 3
Dependent Claim
26 words
The nonwoven fabric according to claim 1 wherein said fused and punctured nonwoven cloth is coated on at least one side with a thermally softenable adhesive.
Claim 4
Dependent Claim
37 words
The nonwoven fabric according to claim 1 wherein said fused nonwoven cloth is punctured on one side and wherein a thermally softenable adhesive is applied to the side of said cloth through which said punctures are made.
Claim 5
Dependent Claim
20 words
The nonwoven fabric according to claim 1 wherein the thermoplastically fusible fibers of said nonwoven cloth are transversely laid fibers.
Claim 6
Dependent Claim
24 words
The nonwoven fabric according to claim 1 wherein said fused nonwoven cloth is punctured with from about 40 to 65 needles per square centimeter.
Claim 7
Dependent Claim
17 words
The nonwoven fabric according to claim 1 wherein said fused nonwoven cloth is punctured on both sides.
Claim 8
Dependent Claim
14 words
The nonwoven fabric according to claim 1 wherein said nonwoven cloth contains bicomponent fibers.
Claim 9
Dependent Claim
25 words
The nonwoven fabric according to claim 7 wherein said thermoplastically fusible fibers are selected from the group consisting of nylon and polyethylene phthalate ester copolymer.
Claim 10
Dependent Claim
22 words
The nonwoven fabric according to claim 1 in combination with an outer textile material to which said fabric has been adhesively attached.
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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |