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US5002815A
Expired / Lapsed
US
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Bulky and reinforced non-woven fabric
Assignee: JNC Corp
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Filing: 1989-01-23
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Granted: 1991-03-26
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Expires: 2009-01-23
Abstract
Abstract A bulky and reinforced non-woven fabric and a process for producing the fabric are provided, which fabric is composed of a web consisting of 30-100% by weight of hot-melt-adhesive fibers and 70-0% by weight of fibers having a m.p. higher than that of the hot-melt-adhesive component of the hot-melt-adhesive fibers and monofilaments, fibers constituting the web being adhered onto one another and also to the monofilaments and the fabric having wrinkles at a wavelength of 0.1 to 20 mm over the whole surface of the fabric; and which process comprises arranging monofilaments of a percentage of shrinkage of 20% or higher under heat treatment conditions for melt-adhering the hot-melt-adhesive fibers over the whole surface of the web; adhering the fibers constituting the web onto one another and also to the monofilaments through hot-melt-adhesion; and also causing the web to shrink through shrinkage generated in the monofilaments.
Inventors
- 👤 Akira Yamanaka
- 👤 Yasuhiro Yabuuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:53
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/14; D04H5/00; D04H5/06; D04H3/005; D04H3/007; D04H3/147; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24116; Y10T428/24355; Y10T428/24446; Y10T428/24479; Y10T428/24612; Y10T442/00; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
A bulky and reinforced non-woven fabric, comprising: a web including 30 to 100% by weight of hot-melt-adhesive fibers and 70 to 0% by weight of fibers having a melting point higher than that of the hot-melt-adhesive component of said hot-melt-adhesive fibers; and reinforcing monofilaments adhered to said web to reinforce the non-woven fabric, the fibers constituting said web being adhered onto one another, and also said fibers constituting said web and said reinforcing monofilaments being adhered together through hot-melt adhesion, and said non-woven fabric having wrinkles which have been generated by heat shrinkage of said reinforcing monofilaments of a wavelength in terms of a distance between adjacent wrinkles of 0.1 to 20 mm over the whole surface of said non-woven fabric.
Claim 2
Dependent Claim
121 words
A bulky and reinforced non-woven fabric, comprising: a web including 30 to 100% by weight of hot-melt-adhesive fibers and 70 to 0% by weight of fibers having a melting point higher than that of the hot-melt-adhesive component of said hot-melt-adhesive fibers; and reinforcing monofilaments adhered to said web to reinforce the non-woven fabric, the fibers constituting said web being adhered onto one another, and also said fibers constituting said web and said reinforcing monofilaments being adhered together through hot-melt adhesion, and said non-woven fabric having wrinkles which have been generated by heat shrinkage of said reinforcing monofilaments of a wavelength in terms of a distance between adjacent wrinkles of 0.1 to 20 mm over the whole surface of said non-woven fabric.
Claim 3
Dependent Claim
36 words
A bulky and reinforced non-woven fabric according to claim 1, wherein said hot-melt-adhesive fibers is selected from homogeneous fibers consisting of polyethylene, polypropylene and polyester, and composite fibers consisting of crystalline polypropylene/polyethylene, polyester/polyethylene and polyester/low-melting polyester.
Claim 4
Dependent Claim
28 words
A bulky and reinfoced non-woven fablic according to claim 1, wherein said monofilament consists of thermoplastic resin of the same kind as that of said hot-melt adhesive fibers.
Claim 5
Dependent Claim
40 words
A bulky and reinforced non-woven fabric according to claim 1, wherein said monofilaments are arranged uniformly over the whole surface of said web so as to give a density of 1 to 20 monofilaments /25 mm length of said web.
Claim 6
Dependent Claim
112 words
A process for producing a bulky and reinforced non-woven fabric, comprising the steps of: arranging over the total surface of a web consisting of 30 to 100% by weight of hot-melt-adhesive fibers and 70 to 0% by weight of fibers having a melting point higher than that of the hot-melt-adhesive component of said hot-melt-adhesive fibers reinforcing monofilaments having a percentage of shrinkage of 20% or higher under heat treatment conditions for melting-adhering said hot-melt adhesive fibers; adhering fibers constituting said web onto one another and also adhering said fibers constituting said web onto said reinforcing monofilaments through hot-melt adhesion; and causing said web to shrink through shrinkage generated in said reinforcing monofilaments.
Claim 7
Dependent Claim
112 words
A process for producing a bulky and reinforced non-woven fabric, comprising the steps of: arranging over the total surface of a web consisting of 30 to 100% by weight of hot-melt-adhesive fibers and 70 to 0% by weight of fibers having a melting point higher than that of the hot-melt-adhesive component of said hot-melt-adhesive fibers reinforcing monofilaments having a percentage of shrinkage of 20% or higher under heat treatment conditions for melting-adhering said hot-melt adhesive fibers; adhering fibers constituting said web onto one another and also adhering said fibers constituting said web onto said reinforcing monofilaments through hot-melt adhesion; and causing said web to shrink through shrinkage generated in said reinforcing monofilaments.
Claim 8
Dependent Claim
40 words
A process for producing a bulky and reinforced non-woven fabric according to claim 5, wherein said hot-melt-adhesive fibers is selected from homogeneous fibers consisting of polyethylene, polypropylene or polyester, and composite fibers consisting of crytalline polypropylene/polyethylene, polyester/polyethylene and polyester/low-melting polyester.
Claim 9
Dependent Claim
32 words
A process for producing a bulky and reinforced non-woven fabric according to claim 5, wherein said monofilament consists of thermoplastic resin of the same kind as that of said hot-melt adhesive fibers.
Claim 10
Dependent Claim
44 words
A process for producing a bulky and reinforced non-woven fabric according to claim 5, wherein said monofilaments are obtained by stretching unstretched monofilaments prepared by melt-spinning thermoplastic resins at a stretch ratio of 1.5 to 2.5 times the original length at a room temperature.
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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) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |