Patent EP0596532A1 successfully refreshed from Google Patents.
EP0596532A1
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Film laminated material and method and apparatus for making the same
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1993-11-05
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Granted: —
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Expires: 2013-11-05
Abstract
Abstract This invention relates to a film laminated material (10) wherein a first film layer (12) comprising a thin film of a thermoplastic material and a second fibrous layer (22) comprising a plurality of staple fibers or continuous filaments of two or more thermoplastic or other materials are bonded together in a spaced apart bonding pattern (18) having apertures (30) formed therein to form a film laminate having improved liquid distribution and management properties as well as enhanced comfort and softness when placed in contact with human skin. Also disclosed are a method and apparatus for making such a film laminate.
Inventors
- 👤 Mir Inayeth Alikhan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 13:51
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; A; A61; A61L; A61L15/00; A61L15/16; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/51104; A61F13/5116; A61F13/512; A61F13/53; A61F13/534; A61F13/537; A61F13/53708; A61F13/53713; A61F13/53717; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/23; B29C66/234; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/433; B29C66/4332; B29C66/45; B29C66/70; B29C66/72; B29C66/723; B29C66/7234; B29C66/72343; B29C66/729; B29C66/7294; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81433; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/8351; B29C66/83511; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91423; B29C66/91431; B29C66/919; B29C66/9192; B29C66/91921; B29C66/91931; B29C66/91935; B29C66/93; B29C66/934; B29C66/93411; B29C66/93451; B29C66/939; B32B27/32; B32B3/00; B32B3/26; B32B3/266; B32B37/00; B32B37/0076; B32B38/00; B32B38/06; B32B5/00; B32B5/02; B32B5/022; B32B5/08; B32B7/00; B32B7/04; B32B7/12; B32B7/14; A61F13/15203; A61F2013/15284; A61F2013/15365; A61F2013/51182; B29C66/21; B29C66/344; B29C66/47; B29C66/472; B29C66/4722; B29C66/71; B29C66/73; B29C66/731; B29C66/7313; B29C66/73132; B29C66/739; B29C66/7392; B29C66/73921; B29K; B29K2023/00; B29K2023/10; B29K2023/12; B29K2067/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854; B29L; B29L2031/00; B29L2031/48; B29L2031/4871; B29L2031/4878; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2262/0276; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1052; Y10T156/1056; Y10T156/1084; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737; Y10T156/1741; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24165
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
72 words
A film laminated material (10) comprising: a first film layer (12) comprising a thermoplastic polymeric material; a second fibrous layer (22) comprising a plurality of fibers of one or more thermoplastic polymeric materials; said first and second layers (12,22) being bonded together in a spaced apart bonding pattern (18) comprising a plurality of discrete compacted bonded areas with lightly bonded fiber spans therebetween; and said bonded areas having apertures (30) formed therein.
Claim 2
Dependent Claim
72 words
A film laminated material (10) comprising: a first film layer (12) comprising a thermoplastic polymeric material; a second fibrous layer (22) comprising a plurality of fibers of one or more thermoplastic polymeric materials; said first and second layers (12,22) being bonded together in a spaced apart bonding pattern (18) comprising a plurality of discrete compacted bonded areas with lightly bonded fiber spans therebetween; and said bonded areas having apertures (30) formed therein.
Claim 3
Dependent Claim
17 words
The film laminated material (10) of claim 1 wherein said second layer (22) comprises a nonwoven web.
Claim 4
Dependent Claim
16 words
The film laminated material (10) of claim 2 wherein second layer (22) comprises a spunbonded web.
Claim 5
Dependent Claim
23 words
The film laminated material (10) of one of the preceding claims wherein said second layer (22) has fibers thereof bonded to one another.
Claim 6
Dependent Claim
22 words
The film laminated material (10) of one of the preceding claims wherein said first and second layers (12,22) are thermally bonded together.
Claim 7
Dependent Claim
30 words
The film laminated material (10) of one of the preceding claims wherein the bonded areas constitute from about 1.0 to about 6.0 percent of the surface area of the material.
Claim 8
Dependent Claim
27 words
The film laminated material (10) of claim 6 wherein the bonded areas constitute from about 2.0 to about 4.0 percent of the surface area of the material.
Claim 9
Dependent Claim
54 words
The film laminated material (10) of one of the preceding claims wherein said first film layer (12) comprises one or more thermoplastic polymeric materials selected from the group consisting of polyolefins and said second layer (22) comprises a blend of two or more thermoplastic polymeric materials selected from the group of polyolefins and polyesters.
Claim 10
Dependent Claim
27 words
The film laminated material (10) of claim 8 wherein said first layer (12) comprises polyethylene and said second layer (22) comprises a blend of polypropylene and polyester.
Claim 11
Dependent Claim
54 words
The film laminated material (10) of claim 9 wherein said first layer (12) comprises about 62 percent polypropylene, about 30 percent polyethylene and about 7.5 percent titanium dioxide and said second layer (22) comprises from about 70 percent polypropylene and about 30 percent polyester to about 25 percent polypropylene and about 75 percent polyester.
Claim 12
Dependent Claim
23 words
The film laminated material (10) of claim 10 wherein said second layer (22) comprises about 40 percent polypropylene and about 60 percent polyester.
Claim 13
Dependent Claim
50 words
The film laminated material (10) of one of claims 1 to 7 wherein said first film layer (12) comprises one or more thermoplastic polymeric materials selected from the group consisting of polyolefins and said second layer (22) comprises one or more thermoplastic polymeric materials selected from the group of polyolefins.
Claim 14
Dependent Claim
22 words
The film laminated material (10) of claim 12 wherein said first layer (12) comprises polyethylene and said second layer (22) comprises polypropylene.
Claim 15
Dependent Claim
45 words
An absorbent article (100;108) comprising a liquid-permeable bodyside cover (82;114), a liquid-impermeable outer baffle (86;110), and an absorbent structure (84;112) disposed therebetween, wherein the bodyside cover (82;114) comprises at least a portion of a film laminated material according to one of claims 1 to 13.
Claim 16
Dependent Claim
46 words
An absorbent article (100) comprising a liquid-permeable bodyside cover (82), a liquid-impermeable outer baffle (86), and a liquid-permeable transfer layer (85) and an absorbent core (84) disposed therebetween, wherein said transfer layer (85) comprises a film laminated material according to one of claims 1 to 13.
Claim 17
Dependent Claim
79 words
A process for making a film laminated material comprising the steps of: a. unwinding a first film layer comprising one or more thermoplastic polymeric materials; b. forming a second fibrous layer comprising a plurality of fibers of one or more thermoplastic polymeric materials; c. bonding said first and second layers together in a spaced apart bonding pattern comprising a plurality of discrete compacted bonding areas with lightly bonded fiber spans therebetween; and d. forming apertures within said bonding areas.
Claim 18
Dependent Claim
79 words
A process for making a film laminated material comprising the steps of: a. unwinding a first film layer comprising one or more thermoplastic polymeric materials; b. forming a second fibrous layer comprising a plurality of fibers of one or more thermoplastic polymeric materials; c. bonding said first and second layers together in a spaced apart bonding pattern comprising a plurality of discrete compacted bonding areas with lightly bonded fiber spans therebetween; and d. forming apertures within said bonding areas.
Claim 19
Dependent Claim
32 words
The process according to claim 16 wherein said forming step b. comprises the step of depositing fibers of said second layer onto said first layer after said first layer has been unwound.
Claim 20
Dependent Claim
22 words
The process according to claim 16 wherein said forming step b. comprises bonding said fibers of said second layer to one another.
Claim 21
Dependent Claim
18 words
The process according to one of claims 16 to 18 wherein said bonding step c. comprises thermal bonding.
Claim 22
Dependent Claim
48 words
The process according to claim 19 wherein said bonding step c. comprises thermal bonding by a first bonding roll having a spaced apart raised bonding pattern on the outer surface thereof and a second bonding roll having a plurality of raised bonding points on the outer surface thereof.
Claim 23
Dependent Claim
18 words
The process according to one of claims 16 to 20 wherein said second layer comprises a nonwoven web.
Claim 24
Dependent Claim
18 words
The process according to one of claims 16 to 21 wherein said second layer comprises a spunbonded web.
Claim 25
Dependent Claim
50 words
The process according to one of claims 16 to 22 wherein said first layer comprises one or more thermoplastic polymeric materials selected from the group consisting of polyolefins and said second layer comprises a blend of two or more thermoplastic polymeric materials selected from the group of polyolefins and polyesters.
Claim 26
Dependent Claim
48 words
The process according to one of claims 16 to 22 wherein said first layer comprises one or more thermoplastic polymeric materials selected from the group consisting of polyolefins and said second layer comprises a blend of one or more thermoplastic polymeric materials selected from the group of polyolefins.
Claim 27
Independent Claim
81 words
An apparatus for forming a film laminated material comprising: means (42) for unwinding a first film layer comprising a thermoplastic polymeric material; means (52) for forming a second fibrous layer comprising a plurality of fibers of one or more thermoplastic polymeric materials; bonding means for bonding said first and second layers together in a spaced apart bonding pattern comprising a plurality of discrete compacted bonding areas with lightly bonded fiber spans therebetween; and means for forming apertures within said bonding areas.
Claim 28
Independent Claim
81 words
An apparatus for forming a film laminated material comprising: means (42) for unwinding a first film layer comprising a thermoplastic polymeric material; means (52) for forming a second fibrous layer comprising a plurality of fibers of one or more thermoplastic polymeric materials; bonding means for bonding said first and second layers together in a spaced apart bonding pattern comprising a plurality of discrete compacted bonding areas with lightly bonded fiber spans therebetween; and means for forming apertures within said bonding areas.
Claim 29
Dependent Claim
55 words
The apparatus for forming a film laminated material according to claim 25 wherein said bonding means comprises a first bonding roll (60) having a spaced apart raised bonding pattern (62) on the outer surface thereof and a second bonding roll (70) having a plurality of raised bonding points (72) on the outer surface (74) thereof.
Claim 30
Independent Claim
32 words
The apparatus for forming a film laminated material according to one of claims 25 or 26 further comprising first bonding means for bonding fibers of said second fibrous layer to one another.
Claim 31
Dependent Claim
41 words
The apparatus for forming a film laminated material according to claim 28 further comprising: means for heating said first and second bonding rolls (60,70); means for rotating said first bonding roll (60); and means for rotating said second bonding roll (70).
Claim 32
Independent Claim
51 words
The apparatus for forming a film laminated material according to one of claims 25 to 28 wherein said first bonding roll (60) has a first rotational speed and said second bonding roll (70) has a second rotational speed, said first speed being at least 4 percent greater than said second speed.
References Cited (Backward Citations)
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