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US5651847A
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Double-face circular knit
Assignee: Hoechst AG
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Filing: 1994-02-10
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Granted: 1997-07-29
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Expires: 2014-02-10
Abstract
Abstract There is described a double-face circular knit comprising two concentric lengths of knit web and an in-between spacer structure, wherein the spacer threads are optionally textured coarse-filament multifilament yarns, optionally in combination with monofilaments, the distance between the two lengths of knit web is from 0.3 to 8 mm, the stitch density corresponds to a machine gauge from E 16 to E 32, and the density of the spacer threads is between 150 and 250 threads per cm 2 . Preferably all the yarns of the double-face circular knit are made of the same polymer. Also described are the production and use of this double-face circular knit.
Inventors
- 👤 Alfons Loeffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/14; D04B1/16; D10; D10B; D10B2331/00; D10B2331/04; D10B2403/00; D10B2403/02; D10B2403/021; D10B2505/00; D10B2505/08; Y; Y10; Y10T; Y10T29/00; Y10T29/48; Y10T29/481; Y10T442/00; Y10T442/40; Y10T442/425; Y10T442/488
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
89 words
A double-face circular knit consisting essentially of two concentric lengths of knit web and an in-between spacer structure, wherein 50 to 80% by weight of the spacer threads are textured coarse-filament multifilament yarns, and correspondingly from 20 to 50% by weight are monofilaments, the distance between the two lengths of knit web is from 0.3 to 8 mm, the stitch density corresponds to a machine gauge from E 16 to E 32, and the density of the spacer threads is between 150 and 250 threads per cm 2 .
Claim 2
Dependent Claim
89 words
A double-face circular knit consisting essentially of two concentric lengths of knit web and an in-between spacer structure, wherein 50 to 80% by weight of the spacer threads are textured coarse-filament multifilament yarns, and correspondingly from 20 to 50% by weight are monofilaments, the distance between the two lengths of knit web is from 0.3 to 8 mm, the stitch density corresponds to a machine gauge from E 16 to E 32, and the density of the spacer threads is between 150 and 250 threads per cm 2 .
Claim 3
Dependent Claim
34 words
The double-face circular knit of claim 1, wherein the optionally textured coarse-filament multifilament yarns have a yarn linear density from 50 to 250 dtex and a filament linear density from 5 to 100 dtex.
Claim 4
Dependent Claim
19 words
The double-face circular knit of claim 1, wherein the monofilaments have a linear density from 20 to 150 dtex.
Claim 5
Dependent Claim
16 words
The double-face circular knit of claim 1, wherein all the yarns are made of polymer materials.
Claim 6
Dependent Claim
19 words
The double-face circular knit of claim 1, wherein the polymer of the yarns is a polyester or a polyolefin.
Claim 7
Dependent Claim
13 words
The double-face circular knit of claim 5, wherein the polyester is polyethylene terephthalate.
Claim 8
Dependent Claim
21 words
The double-face circular knit of claim 1, wherein the knit has a basis weight from 150 to 1400 g/m 2 .
Claim 9
Dependent Claim
27 words
The double-face circular knit of claim 1, wherein the monofilaments and the optionally textured yarns of the spacer structure are interlaced side by side in every course.
Claim 10
Dependent Claim
20 words
The double-face circular knit of claim 1, wherein the monofilaments and the optionally textured yarns of the spacer structure alternate.
Claim 11
Dependent Claim
90 words
A process for producing a double-face circular knit as claimed in claim 1 by producing, on a circular knitting machine with a plurality of independently movable needles in two rows of a cylinder and a dial, a double-faced circular knit in which spacer threads are guided alternatingly back and forth between the two lengths of knit web and are interlaced or intermeshed into each length of web, which comprises the step of feeding the needles with spacer threads comprising either coarse-filament multifilament yarns or coarse-filament multifilament yarns alternating with monofilaments.
Claim 12
Dependent Claim
38 words
The process of claim 10, further comprising the step of supplying yarn such that from 50 to 80% by weight of the spacer threads are coarse-filament multifilament yarn and correspondingly from 20 to 50% by weight are monofilaments.
Claim 13
Dependent Claim
27 words
The process of claim 10 wherein the needles are controlled in such a way as to produce a plain structure in each of the lengths of web.
Claim 14
Dependent Claim
37 words
A method of upholstering and lining interior spaces comprising the steps of forming a double-face circular knit as claimed in claim 1, and applying said double-face circular knit as upholstering or a liner for an interior space.
Claim 15
Dependent Claim
20 words
The double-face circular knit as claimed in claim 4, wherein all the yarns are made of the same polymer materials.
Claim 16
Dependent Claim
34 words
The double-face circular knit as claimed in claim 1, wherein from 60 to 70% by weight of the spacer threads are coarse-filament multifilament yarn and correspondingly from 30 to 40% by weight are monofilaments.
Claim 17
Dependent Claim
36 words
The process of claim 10, wherein the yarn supply is such that from 60 to 70% by weight of the spacer threads textured coarse-filament multifilament yarn and correspondingly from 30 to 40% by weight are monofilaments.
Claim 18
Dependent Claim
18 words
A double-face circular knit as claimed in claim 1, wherein the coarse-filament multifilament yarns are combined with monofilaments.
Claim 19
Dependent Claim
115 words
A double-face circular knit consisting essentially of two concentric lengths of knit web and an in-between spacer structure, wherein 50 to 80% by weight of the spacer threads are textured coarse-filament multifilament yarns, and correspondingly from 20 to 50% by weight are monofilaments, the distance between the two lengths of knit web is from 0.3 to 8 mm, the stitch density corresponds to a machine gauge from E 16 to E 32, and the density of the spacer threads is between 150 and 250 threads per cm 2 , wherein the textured coarse-filament multifilament yarns have a yarn linear density from 50 to 250 dtex and a filament linear density from 5 to 100 dtex.
Claim 20
Dependent Claim
115 words
A double-face circular knit consisting essentially of two concentric lengths of knit web and an in-between spacer structure, wherein 50 to 80% by weight of the spacer threads are textured coarse-filament multifilament yarns, and correspondingly from 20 to 50% by weight are monofilaments, the distance between the two lengths of knit web is from 0.3 to 8 mm, the stitch density corresponds to a machine gauge from E 16 to E 32, and the density of the spacer threads is between 150 and 250 threads per cm 2 , wherein the textured coarse-filament multifilament yarns have a yarn linear density from 50 to 250 dtex and a filament linear density from 5 to 100 dtex.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-28 | 2001-01-27 | 2001-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-28 | 2005-01-27 | 2005-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-28 | 2009-01-27 | 2009-07-29 | $7700.00 | Window Closed / Lapsed |