US5026587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiping fabric
Assignee: Fitesa Simpsonville Inc
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Filing: 1989-10-13
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Granted: 1991-06-25
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Expires: 2009-10-13
Abstract
Abstract A nonwoven fabric having high performance aqueous fluid retention and wiping characteristics and a method of producing such fabric. The fabric comprises a reinforcing web of self-bonded continuous filament synthetic fibers having at least one surface with spaced clusters of synthetic staple fibers and short natural fibers generally surrounded by void areas having a concentration of synthetic staple fibers and short natural fibers which is lower than such concentration in the clusters. The desired pattern of clusters may be obtained by hydroentanglement using a coarse apertured forming surface.
Inventors
- 👤 Jared A. Austin
- 👤 Joseph H. Miller
- 👤 Robert F. Hyslop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:24
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/022; B32B5/22; B32B5/24; B32B5/26; D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/492; D04H1/495; D04H5/00; D04H5/02; D04H5/03; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/23979; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T442/00; Y10T442/60; Y10T442/689
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
A nonwoven textile fabric having high performance aqueous fluid retention and wiping characteristics, said fabric comprising: (a) a reinforcing web formed of an interconnecting network of continuous filament synthetic fibers; and (b) a mixture of synthetic textile staple fibers and short natural fibers interentangled and entangled with said continuous filament fibers so as to form a cohesive structure; (c) at least one surface of said fabric having a plurality of spaced apart clusters of said synthetic staple fibers and short natural fibers, said clusters being generally surrounded and interconnected by areas having a concentration of synthetic staple fibers and short natural fibers which is lower than such concentration in said clusters.
Claim 2
Dependent Claim
111 words
A nonwoven textile fabric having high performance aqueous fluid retention and wiping characteristics, said fabric comprising: (a) a reinforcing web formed of an interconnecting network of continuous filament synthetic fibers; and (b) a mixture of synthetic textile staple fibers and short natural fibers interentangled and entangled with said continuous filament fibers so as to form a cohesive structure; (c) at least one surface of said fabric having a plurality of spaced apart clusters of said synthetic staple fibers and short natural fibers, said clusters being generally surrounded and interconnected by areas having a concentration of synthetic staple fibers and short natural fibers which is lower than such concentration in said clusters.
Claim 3
Dependent Claim
22 words
The fabric of claim 1, wherein said reinforcing web has a basis weight of at least about 0.2 ounces per square yard.
Claim 4
Dependent Claim
30 words
The fabric of claim 1 wherein said synthetic staple fibers are present in an amount of from about 25 to 75%, by weight, of the total weight of said fabric.
Claim 5
Dependent Claim
32 words
The fabric of claim 1, wherein the denier of said synthetic staple fibers is from about 0.7 to about 5 and the length thereof is from about 0.375 to about 1 inch.
Claim 6
Dependent Claim
29 words
The fabric of claim 1, wherein said synthetic staple fibers are formed of a material selected from the group consisting of polyester, polypropylene, nylon, and polyacrylonitrile resins and rayon.
Claim 7
Dependent Claim
30 words
The fabric of claim 1, wherein said short natural fibers are present in an amount of from about 15 to 70%, by weight, of the total weight of said fabric.
Claim 8
Dependent Claim
22 words
The fabric of claim 1, wherein said short natural fibers have an average fiber length of from about 3 to 6 millimeters.
Claim 9
Dependent Claim
21 words
The fabric of claim 7, wherein said short natural fibers are obtained from redwood, western red cedar or eastern white pine.
Claim 10
Dependent Claim
15 words
The fabric of claim 7, wherein said short natural fibers are obtained from cotton linters.
Claim 11
Dependent Claim
23 words
The fabric of claim 1, wherein said clusters are periodically spaced at an average distance of from about 0.03 to about 0.20 inch.
Claim 12
Dependent Claim
18 words
The fabric of claim 1, wherein the surface of said fabric opposite said one surface is substantially flat.
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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) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |