US4435458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate for wearing apparel and methods for the manufacture of the laminate
Assignee: Ansell Protective Products Inc
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Filing: 1982-12-22
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Granted: 1984-03-06
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Expires: 2002-12-22
Abstract
Abstract Methods are provided for producing a laminate particularly useful in producing warm moisture-resistant wearing apparel for industrial applications and sportswear. The laminate is superior in flexibility and comfort when worn while still providing appropriate moisture protection. In addition, the method includes procedures for providing a combined textured and creped surface for varying the appearance and degree of flexibility and "feel" to garments comprised of the laminate. The methods include joining a non-woven fibrous web such as a needled felt to a foamed synthetic resin web, such as polyurethane foam, and thereafter, through controlled tension, temperature and roll pressure, joining a film, such as a synthetic resin film, to the exposed foam surface through a heated roll nip, followed by embossing. The degree of "crepe" and texture or embossing imparted to the laminate varies inversely to each other, as desired, to provide a variety of different appearing and appealing fabric surfaces.
Inventors
- 👤 Charles E. Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:23
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/144; A; A41; A41D; A41D31/00; A41D31/02; B32B27/00; B32B27/12; B32B38/00; B32B38/06; B32B5/00; B32B5/02; B32B5/022; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2327/00; B32B2327/06; B32B2367/00; B32B2451/00; B32B2459/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24942; Y10T428/2495; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
181 words
A method for producing a laminate useful in wearing apparel, comprising (a) selecting in a first selecting step a fibrous web; (b) selecting in a second selecting step a web of foamed resin; (c) joining said fibrous web to said foamed resin web to form a pre-laminate; the improvement characterized by (d) selecting in a third selecting step a resin film web; (e) adhering said film web to the exposed foam surface of said pre-laminate formed in said joining step by passing said film and said pre-laminate through a pressure nip at elevated temperatures; (f) creping the said film web in said pressure nip during said adhering step by maintaining said film web, prior to said nip under sufficient tension to elongate said web; (g) said creping step being carried out by maintaining said pre-laminate web at only enough tension, prior to said nip, to guide said pre-laminate to said nip; and (h) the pressure in said pressure nip, during said creping step being only at a level to bring the surfaces of said film web and said pre-laminate web together.
Claim 2
Independent Claim
181 words
A method for producing a laminate useful in wearing apparel, comprising (a) selecting in a first selecting step a fibrous web; (b) selecting in a second selecting step a web of foamed resin; (c) joining said fibrous web to said foamed resin web to form a pre-laminate; the improvement characterized by (d) selecting in a third selecting step a resin film web; (e) adhering said film web to the exposed foam surface of said pre-laminate formed in said joining step by passing said film and said pre-laminate through a pressure nip at elevated temperatures; (f) creping the said film web in said pressure nip during said adhering step by maintaining said film web, prior to said nip under sufficient tension to elongate said web; (g) said creping step being carried out by maintaining said pre-laminate web at only enough tension, prior to said nip, to guide said pre-laminate to said nip; and (h) the pressure in said pressure nip, during said creping step being only at a level to bring the surfaces of said film web and said pre-laminate web together.
Claim 3
Dependent Claim
30 words
The method of claim 1, further characterized by (a) said creping step being carried out at a temperature within the range of between about 265 degrees and 315 degrees F.
Claim 4
Dependent Claim
22 words
The method of claim 2, further characterized by (a) the step of embossing said web from said creping step at elevated pressures.
Claim 5
Dependent Claim
26 words
The method of claim 3, further characterized by (a) said elevated pressure is within the range of between about 100 and 400 pounds per square inch.
Claim 6
Dependent Claim
39 words
The method of claim 4, further characterized by (a) said creping step is carried out at a temperature of 315 degrees F.; and (b) said embossing step is carried out at a pressure of 200 pounds per square inch.
Claim 7
Dependent Claim
41 words
The method of claim 5, further characterized by (a) said web for said first selecting step is non-woven polyester; (b) said foam for said second selecting step is polyurethane; and (c) said film for said third selecting step is polyvinyl chloride.
Claim 8
Dependent Claim
35 words
The method of claim 1, further characterized by (a) said creping step is carried out by maintaining said film web under sufficient tension to produce an elongation thereof of six percent in the resulting laminate.
Claim 9
Dependent Claim
38 words
The method of claim 1, further characterized by (a) said first selecting step is carried out by selecting a non-woven polyester web with a weight within the range of between about 2.5 and 4.5 ounces per square yard.
Claim 10
Dependent Claim
31 words
The method of claim 8, further characterized by (a) said first selecting step is carried out by selecting a non-woven polyester web with a weight of 3.0 ounces per square yard.
Claim 11
Dependent Claim
34 words
The method of claim 1, further characterized by (a) said second selecting step is carried out by selecting a polyurethane web having a thickness within the range of between about 0.10 and 0.03 inches.
Claim 12
Dependent Claim
27 words
The method of claim 10, further characterized by (a) said second selecting step is carried out by selecting a polyurethane web having a thickness of 0.03 inches.
Claim 13
Dependent Claim
37 words
The method of claim 1, further characterized by (a) said third selecting step is carried out by selecting a soft flexible polyvinyl chloride film having a thickness within the range of between about 0.002 and 0.02 inches.
Claim 14
Dependent Claim
28 words
The method of claim 12, further characterized by (a) said third selecting step is carried out by selecting a polyvinyl chloride film having a thickness of 0.006 inches.
Claim 15
Dependent Claim
32 words
The method of claim 1, further characterized by (a) said joining step is by needling carried out with a depth of penetration within the range of between about 0.20 and 0.92 inches.
Claim 16
Dependent Claim
20 words
The method of claim 14, further characterized by (a) said depth of penetration is 0.3 to 0.4 (two barbs) inches.
Claim 17
Dependent Claim
36 words
The method of claim 1, further characterized by (a) said joining step is by needling carried out with a degree of penetration of within the range of between about 200 and 2000 penetrations per square inch.
Claim 18
Dependent Claim
19 words
The method of claim 16, further characterized by (a) said degree of penetration is 550 penetrations per square inch.
Claim 19
Dependent Claim
78 words
A laminate for use in wearing apparel, characterized by (a) a fibrous web; (b) a synthetic foamed resin web joined to said non-woven fibrous web to form a prelaminate; (c) the exposed surface of said non-woven fibrous web on said pre-laminate being napped to form the internal surface of wearing apparel formed therefrom. (d) a resin film web adhered to the exposed foam surface of said pre-laminate; and (e) the exposed surface of said film web being creped.
Claim 20
Dependent Claim
78 words
A laminate for use in wearing apparel, characterized by (a) a fibrous web; (b) a synthetic foamed resin web joined to said non-woven fibrous web to form a prelaminate; (c) the exposed surface of said non-woven fibrous web on said pre-laminate being napped to form the internal surface of wearing apparel formed therefrom. (d) a resin film web adhered to the exposed foam surface of said pre-laminate; and (e) the exposed surface of said film web being creped.
Claim 21
Dependent Claim
19 words
The laminate of claim 18, further characterized by (a) said creped film surface having an embossed pattern superimposed thereover.
Claim 22
Dependent Claim
15 words
The laminate of claim 18, further characterized by (a) said fibrous web is non-woven polyester.
Claim 23
Dependent Claim
16 words
The laminate of claim 18, further characterized by (a) said synthetic foamed resin web is polyurethane.
Claim 24
Dependent Claim
14 words
The laminate of claim 18, further characterized by (a) said film is polyvinyl chloride.
Claim 25
Dependent Claim
29 words
The laminate of claim 20, further characterized by (a) said non-woven polyester web has a weight within the range of between about 2.5 and 4.5 ounces per square yard.
Claim 26
Dependent Claim
22 words
The laminate of claim 23, further characterized by (a) said non-woven polyester web has a weight of 3.0 ounces per square yard.
Claim 27
Dependent Claim
25 words
The laminate of claim 21, further characterized by (a) said polyurethane web has a thickness within the range of between about 0.10 and 0.03 inch.
Claim 28
Dependent Claim
18 words
The laminate of claim 25, further characterized by (a) the thickness of said polyurethane web is 0.03 inch.
Claim 29
Dependent Claim
26 words
The laminate of claim 23, further characterized by (a) said polyvinyl chloride film has a thickness within the range of between about 0.002 and 0.02 inch.
Claim 30
Dependent Claim
19 words
The laminate of claim 27, further characterized by (a) said polyvinyl chloride film has a thickness of 0.006 inch.
Claim 31
Dependent Claim
35 words
The laminate of claim 18, further characterized by (a) said pre-laminate is joined together by needling with a density of penetration of within the range of between about 200 and 2000 penetrations per square inch.
Claim 32
Dependent Claim
19 words
The laminate of claim 29, further characterized by (a) said density of penetration is 550 penetrations per square inch.
Claim 33
Dependent Claim
32 words
The laminate of claim 18, further characterized by (a) said pre-laminate is joined together by needling at a depth of penetration of between the range of between about 0.20 and 0.92 inch.
Claim 34
Dependent Claim
20 words
The laminate of claim 31, further characterized by (a) said depth of penetration is 0.3 to 0.4 (two barb) inch.
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) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |