WO2003007864A1 - Non-woven elastic laminate - Google Patents
Non-woven elastic laminate Download PDFInfo
- Publication number
- WO2003007864A1 WO2003007864A1 PCT/US2001/022493 US0122493W WO03007864A1 WO 2003007864 A1 WO2003007864 A1 WO 2003007864A1 US 0122493 W US0122493 W US 0122493W WO 03007864 A1 WO03007864 A1 WO 03007864A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elastic
- woven
- fabric
- film
- web
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/144—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/04—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a layer being specifically extensible by reason of its structure or arrangement, e.g. by reason of the chemical nature of the fibres or filaments
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/20—Fibres of continuous length in the form of a non-woven mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1875—Tensioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1883—Detensioning
Definitions
- the present invention relates generally to composite elastic fabrics, and more particularly to elastic fabrics that are comprised of a non-woven layer laminated to an elastic layer.
- the prior art contains a number of examples of composite elastic fabrics comprised of a non- woven layer and an elastic layer. Such fabrics are useful for applications such as garments, disposable medical products, personal hygiene products, industrial products, and diapers. Depending on the particular application, the fabric may require particular properties such as a desired degree of elongation / recovery, porosity, softness, etc. These properties may be influenced by the selection of the particular non- woven component layer and the elastic component layer.
- the non-woven layer may be laminated to the elastic component layer with a chemical bond, mechanical bond, or by thermal bonding. Tension may be applied to either the elastic member or the nonelastic member prior to laminating to provide the final fabric with its elastic elongation capability.
- the recovery capability of the composite is a function only of the recovery of the elastic member.
- the non-woven layer can be tensioned prior to joining a tensioned or relaxed elastic member.
- the composite fabric When relaxed, the composite fabric again shows a puckered surface with "gathers" of the non- woven between bond points.
- the previously described 'positive stop' feature is also again manifested by the extension of the gathers in the non- woven layer when tension is applied.
- this method produces a dimensional distortion in the non- woven layer referred to as 'necking' or 'necking in.'
- U.S. Patent No. 5,114,781 discloses a method for producing a laminate which has CD elastic stretch and recovery.
- the process disclosed is based on laminating a 'reversibly necked' substrate under tension to a tensioned elastic member.
- the provided definition of a 'reversibly necked' fabric is one that has been treated in some way while in a tensioned, necked-in state to impart memory to the material. The effect of this memory is to induce the fabric to return to its necked-in configuration after tension is applied in the CD.
- the fabric and method disclosed result in a fabric surface that is puckered and gathered as the necked-in fabric is bonded to a tensioned elastic layer.
- the reversible necking of the non-elastic layer requires an additional process step with associated costs and efforts.
- the present invention comprises a method for making a non-woven elastic laminate fabric, as well as the elastic laminate fabric produced thereby.
- the elastic non-woven laminate fabric of the invention comprises a non-woven fabric web having a CD elongation of at least 120% and a basis weight of between about 10 - 100 gm/m 2 laminated to an elastic film layer comprised of a vinylidene isoprene polymer having a thickness of between 0.5 to 3.0 mils.
- the resulting elastic laminate non- woven fabric of the invention has CD elongation of at least 120%, MD elongation of 25- 70%, and a CD elastic recovery of at least 85% after multiple cycles of 100% elongation.
- % elongation as used herein may be defined as:
- % recovery may be defined as:
- the non- woven web component of the fabric of the invention has a CD elongation of at least 150% and a basis weight of between about 15-50 gm/m 2 .
- the preferred non-woven web may comprise spunbond or meltblown filament webs, or hydroentangled, carded staple fibers.
- Preferred materials of composition for the non- woven web of the invention include poly(ethylene terephthalate) ("PET”) and polyolefins.
- PET poly(ethylene terephthalate)
- PET poly(ethylene terephthalate)
- the use of the preferred film also provides advantages over the use of elastic netlike structures or reticulated films in that more uniform elongation and a more uniform, wrinkle free surface appearance result.
- the film is preferably extrusion coated onto the non-woven web, while the web is in a relaxed, un-tensioned state (except for tensioning as may be required for normal web processing).
- the preferred extrusion coating of the film onto the non-woven web results in a final fabric having a smooth, ungathered or puckered surface, as all components are joined in an effectively relaxed configuration. Further, extrusion coating provides for large bonding interface area between layers, so that a coherent final laminate fabric results.
- Other means of attachment comprise bonding with an adhesive or thermal bonding by calendering.
- the fabric of the invention has a CD elongation of at least 120% and preferably greater than 150% that is superior to that of elastic non- woven laminates of the prior art. Further, the elastic recovery of the fabric of the invention, which is 85% or greater after several cycles of 100% elongation, is also superior to that of any prior art elastic non- woven laminate fabric.
- a preferred embodiment of the laminate elastic fabric of the invention comprises an elastic layer sandwiched in between two non-woven outer layers.
- a first non-woven web is as described above, with a CD elongation of at least 120%, with at least 150% most preferred, and a basis weight of between about 10-50 gm/m 2 .
- the method of the invention generally comprises the steps of providing a non- woven fabric web having a CD elongation of at least 120% and a basis wejght of between 10-50 gm/m 2 , attaching an elastic film to the non- woven web with both the web and the film in substantially relaxed, unstretched states.
- the film comprises a vinylidene isoprene polymer with a thickness of between about 0.5 and 3.0 mils.
- the preferred means of attachment of the film to the non-woven web is by extrusion coating.
- the final laminate fabric of the invention has a smooth surface free from the puckering and/or gathering of non-woven elastic composites of the prior art.
- the preferred non-woven web provided in the method of the invention is as generally described above in relation to the preferred fabric of the invention. It has a CD elongation of at least 150% and a basis weight of between about 10-100 gm/m 2 .
- the web may comprise spunbond or meltblown continuous filaments, or more preferably hydroentangled, or highly randomized, carded staple fiber webs.
- the web may be prepared in line with the joining of the layers, or may be prepared separately.
- Preferred materials of composition include polyolefins, and poly(ethylene terephthalate) (PET).
- the preferred vinylidene isoprene polymer film of the method of the invention is also as described above in association with the preferred fabric of the invention. Most preferably it has a thickness of about 2 mils.
- a preferred embodiment of the method of the invention comprises the steps of providing a first non- woven web having a CD elongation of at least 120%, with at least 150% most preferred, and a basis weight of between about 10-50 gm/m 2 .
- an elastic vinylidene isoprene film is extrusion coated onto the web in a thickness as described above, including preferred ranges.
- a second non-woven web having physical properties and characteristics similar to the first web, including basis weight and CD elongation, is then thermally bonded to the exposed side of the film with both the second web and the first web and film laminate in substantially relaxed, unstretched states. The film is thereby sandwiched between the two non- woven layers.
- the thermal point bonding of the second layer to the exposed side of the film is preferably carried out at a temperature in the range of the melting temperature of the film, 200 - 220°C, to result in an intimate co-mingled bond between both outer non- woven layers and the film layer therebetween.
- An optional, additional step in the method of the invention further comprises tensioning the laminated fabric of the invention in the machine direction after joining of the layers in a calender nip and before winding the fabric onto a winder.
- the tension is released before winding, so that the fabric is wound in a relaxed state.
- the tensioning causes some bonds to break in the nonwoven fabric layers. This breakage increases the overall elongation capacity of the laminate fabric, and decreases the stretch force of the
- the method of the invention thereby provides an improved process for making an elastic non-woven laminate fabric that does not require applying unusual tension to or otherwise stretching either the non-woven layer(s) or the elastic layer, instead allowing fabrication while the layers are in a substantially relaxed, un-extended state.
- the present invention therefore avoids the additional efforts and expenses associated with the stretching of one or all of the layers during processing, specifically the specialized equipment and process controls required to provide and maintain a tensioning station in the production line.
- the method of the invention is a simpler and more efficient method than those of the prior art. Also, the method of the invention results in a fabric having CD elongation of at least 120%, and elastic recovery of at least 85% after 3 cycles of 100% elongation.
- Fig. 1 shows a schematic diagram of the preferred method of the invention.
- Fig. 2 shows a cross section view of the preferred fabric of the invention.
- Non-woven layer 2 having a CD elongation of at least 120%, and more preferably 150%, is unwound from roller 4.
- Non-woven 2 has a MD elongation in the range of 25-70%, with 25-45% most common. In general, the lower the MD / CD elongation ratio, the higher the CD elongation; i.e. the more CD orientation of the fibers / filaments, the greater the CD elongation.
- Non-woven layer 2 may comprise spunbond or meltblown filament webs, or hydroentangled or carded staple fibers webs, such as highly randomized carded staple fiber webs. Hydroentangled webs and highly randomized, carded webs that are adhesive or thermal bonded are preferred.
- composition for web 2 are polyolefins and PET.
- a preferred basis weight for web 2 is between about 10 - 100 gm/m 2 , with 15-50 gm m 2 most preferred.
- Table 1 lists some examples of suitable non-woven substrates layers and
- the non-woven substrates of the invention are not limited to the examples of
- Elastic film 6 comprises a vinylidene isoprene polymer having a thickness of
- the preferred vinylidene isoprene polymer film 6 of the fabric of the invention has a thickness of about 2 mils, and comprises 70-95% of a block copolymer with the general
- a second preferred film composition comprises 70-95% of a block copolymer with the general formula A x -(BA) y -BA where A is a monovinylidene aromatic monomer, B is a conjugated diene, x is from 0-1, and is from 0-3.
- Second non-woven layer 10 is next unwound from roller 12 and deposited on the
- Non- woven web 10 is deposited in a substantially relaxed, unstretched state to a likewise un-tensioned web 2 / film 6 laminate. That is, the three
- Non- woven layer 10 may have substantially the same physical characteristics as
- first non-woven layer 2 and likewise may be comprised of the same materials.
- non- woven layer 10 may have different physical properties from first non- woven layer 2, or be comprised of different materials, as may be desired. It is critical, however, that the second non- woven layer 10 has a CD elongation of at least 120%, and preferably of at least 150%. Table 1 above is referred to for examples of suitable webs for comprising non-woven layer 10. Heated calender rolls 14 thermally bond second non- woven layer 10, film 6, and first non-woven layer 2. Thus film 6 is sandwiched between outer non-woven web layers 2 and 10.
- calender rollers 14 operate at a temperature in the melting range of film 6 so that an integral bond results between all three layers, with fibers or filaments in the outer nonwoven layers thereby intermingled with the film layer at the bond point. Film 6 is actually observed to thin at the bond points.
- the laminated fabric 16 of the invention is tensioned in the MD with tension rollers 18.
- Tensioning in the MD breaks some of the fibers in the outer non-woven layers, leading to increased MD elongation and decreased stretch force in fabric 16, as well as generally improved hand.
- Tension in fabric 16 is released after passing tension rollers 18, and laminated elastic fabric 16 is finally wound on roller 20 in a substantially relaxed, un-stretched state.
- Fig. 2 is a cross section of a preferred fabric 16 of the invention, as produced by the preferred process described above.
- Fabric 16 comprises outer non- woven layers 2 and 10 sandwiching elastic film layer 6.
- Non- oven outer layers 2 and 10 must have a CD elongation of at least 120%, and preferably of at least 150%. They preferably have a basis weight in the range of 15-50 gm/m 2 , and may comprise spunbond or meltblown continuous filaments, or hydroentangled, carded, highly randomized staple fibers.
- Preferred materials of composition comprise polyolefins and PET. Reference is made to
- the preferred fabric of the invention has a surface that is substantially flat and is not bunched
- Preferred elastic film 6 is the VECTOR film described above, available from the Dexco Corp., in Plaquemine, LA.; with a preferred thickness of between about 0.5 and 3 mils and a most preferred thickness of about 2 mils.
- film 6 is extrusion coated
- the preferred laminate fabric of the invention has a CD elasticity of at least 120% and most preferably greater than 150% that is superior to that of elastic non- woven
- Non-woven fabrics show hysteresis recovery when cycled to limits below their yield point. The higher the overall elongation of the non-woven, the more recovery power the fabric will be able to
- a laminate made with a non-woven substrate having 120% elongation would be expected to provide a lower elastic recovery from a 100% extension than a laminate prepared with a substrate having 175% elongation.
- Table 2 illustrates the superior recovery of the fabrics of the invention over prior art fabrics.
- Table 2 also shows the reduced elastic force of the fabrics of the invention over prior art fabrics.
- the fabrics of the invention combine increased recovery with reduced elastic force over prior art fabrics, which is a suprising result of the fabric and method of the invention as typically increased recovery is only achieved through increased elastic force.
- the fabrics of the invention are able to achieve a relatively gentle retractive force through their unique method of fabrication; and particularly due to the use of the vinylidene isoprene film of the invention.
- the high level of recovery after multiple extensions that the fabrics of the invention show is a result of their unique design Because the laminated layers are joined without application of tension, there is no initial introduction of stress during formation to structurally deform the non-elastic members or to reduce the elasticity of the elastic member. As the non-elastic member is not under excessive tension during manufacture of the composite, the natural recovery of the high elongation fabric is able to contribute to the recovery performance of the final laminate fabric.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01955852A EP1424975A1 (en) | 2001-07-18 | 2001-07-18 | Non-woven elastic laminate |
MXPA04000404A MXPA04000404A (en) | 2001-07-18 | 2001-07-18 | Non-woven elastic laminate. |
PCT/US2001/022493 WO2003007864A1 (en) | 2001-07-18 | 2001-07-18 | Non-woven elastic laminate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2001/022493 WO2003007864A1 (en) | 2001-07-18 | 2001-07-18 | Non-woven elastic laminate |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003007864A1 true WO2003007864A1 (en) | 2003-01-30 |
Family
ID=21742705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/022493 WO2003007864A1 (en) | 2001-07-18 | 2001-07-18 | Non-woven elastic laminate |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1424975A1 (en) |
MX (1) | MXPA04000404A (en) |
WO (1) | WO2003007864A1 (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2228209A1 (en) * | 2009-03-11 | 2010-09-15 | Nordenia Deutschland Gronau GmbH | Elastic laminate, suitable for elastic fastening members for diapers |
EP2299956A2 (en) * | 2008-06-30 | 2011-03-30 | Kimberly-Clark Worldwide, Inc. | Elastic composite containing a low strength and lightweight nonwoven facing |
EP2397320A3 (en) * | 2009-02-06 | 2012-04-04 | Nike International Ltd | Thermoplastic non-woven textile elements |
EP2511407A1 (en) * | 2011-04-11 | 2012-10-17 | Fiberweb Holdings Limited | Multi-layer fabric and process for the making the same |
WO2014097004A1 (en) * | 2012-12-19 | 2014-06-26 | Kimberly-Clark Worldwide, Inc. | Laminate and process for making same |
US8850719B2 (en) | 2009-02-06 | 2014-10-07 | Nike, Inc. | Layered thermoplastic non-woven textile elements |
US8906275B2 (en) | 2012-05-29 | 2014-12-09 | Nike, Inc. | Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements |
US8968408B2 (en) | 2007-02-21 | 2015-03-03 | Benvenue Medical, Inc. | Devices for treating the spine |
EP3000451A1 (en) * | 2014-09-23 | 2016-03-30 | Sandler AG | Stretchable nonwoven fabric |
US9579848B2 (en) | 2009-02-06 | 2017-02-28 | Nike, Inc. | Methods of joining textiles and other elements incorporating a thermoplastic polymer material |
WO2018011516A1 (en) * | 2016-07-15 | 2018-01-18 | Aplix | Laminated assembly and manufacturing method |
WO2018044286A1 (en) * | 2016-08-31 | 2018-03-08 | Kimberly-Clark Worldwide, Inc. | Non-stretch bonded elastic with elastic net |
US10561537B2 (en) | 2016-08-12 | 2020-02-18 | The Procter & Gamble Company | Elastic laminates and methods for assembling elastic laminates for absorbent articles |
US10952910B2 (en) | 2017-03-27 | 2021-03-23 | The Procter & Gamble Company | Elastomeric laminate with soft noncrimped spunbond fiber webs |
US11135100B2 (en) | 2013-05-03 | 2021-10-05 | The Procter & Gamble Company | Absorbent articles comprising stretch laminates |
US11446186B2 (en) | 2016-08-12 | 2022-09-20 | The Procter & Gamble Company | Absorbent article with ear portion |
US11642248B2 (en) | 2016-08-12 | 2023-05-09 | The Procter & Gamble Company | Absorbent article with an ear portion |
US11779071B2 (en) | 2012-04-03 | 2023-10-10 | Nike, Inc. | Apparel and other products incorporating a thermoplastic polymer material |
US11944522B2 (en) | 2019-07-01 | 2024-04-02 | The Procter & Gamble Company | Absorbent article with ear portion |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4828556A (en) * | 1986-10-31 | 1989-05-09 | Kimberly-Clark Corporation | Breathable, multilayered, clothlike barrier |
US5114781A (en) * | 1989-12-15 | 1992-05-19 | Kimberly-Clark Corporation | Multi-direction stretch composite elastic material including a reversibly necked material |
US5882769A (en) * | 1992-12-29 | 1999-03-16 | Kimberly-Clark Worldwide, Inc. | Stretch-pillowed, bulked laminate |
US5914184A (en) * | 1996-12-30 | 1999-06-22 | Kimberly-Clark Worldwide, Inc. | Breathable laminate including filled film and continuous film |
US6190758B1 (en) * | 1995-05-02 | 2001-02-20 | Kimberly-Clark Worldwide, Inc. | Nonwoven-film laminates |
-
2001
- 2001-07-18 MX MXPA04000404A patent/MXPA04000404A/en active IP Right Grant
- 2001-07-18 EP EP01955852A patent/EP1424975A1/en not_active Withdrawn
- 2001-07-18 WO PCT/US2001/022493 patent/WO2003007864A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4828556A (en) * | 1986-10-31 | 1989-05-09 | Kimberly-Clark Corporation | Breathable, multilayered, clothlike barrier |
US5114781A (en) * | 1989-12-15 | 1992-05-19 | Kimberly-Clark Corporation | Multi-direction stretch composite elastic material including a reversibly necked material |
US5882769A (en) * | 1992-12-29 | 1999-03-16 | Kimberly-Clark Worldwide, Inc. | Stretch-pillowed, bulked laminate |
US6190758B1 (en) * | 1995-05-02 | 2001-02-20 | Kimberly-Clark Worldwide, Inc. | Nonwoven-film laminates |
US5914184A (en) * | 1996-12-30 | 1999-06-22 | Kimberly-Clark Worldwide, Inc. | Breathable laminate including filled film and continuous film |
Cited By (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8968408B2 (en) | 2007-02-21 | 2015-03-03 | Benvenue Medical, Inc. | Devices for treating the spine |
AU2009265214B2 (en) * | 2008-06-30 | 2013-07-04 | Kimberly-Clark Worldwide, Inc. | Elastic composite containing a low strength and lightweight nonwoven facing |
EP2299956A2 (en) * | 2008-06-30 | 2011-03-30 | Kimberly-Clark Worldwide, Inc. | Elastic composite containing a low strength and lightweight nonwoven facing |
CN102076303A (en) * | 2008-06-30 | 2011-05-25 | 金伯利-克拉克环球有限公司 | Elastic composite containing a low strength and lightweight nonwoven facing |
US8603281B2 (en) | 2008-06-30 | 2013-12-10 | Kimberly-Clark Worldwide, Inc. | Elastic composite containing a low strength and lightweight nonwoven facing |
EP2299956A4 (en) * | 2008-06-30 | 2012-08-01 | Kimberly Clark Co | Elastic composite containing a low strength and lightweight nonwoven facing |
US9682512B2 (en) | 2009-02-06 | 2017-06-20 | Nike, Inc. | Methods of joining textiles and other elements incorporating a thermoplastic polymer material |
EP3613584A1 (en) * | 2009-02-06 | 2020-02-26 | NIKE Innovate C.V. | Thermoplastic non-woven textile elements |
EP2397320A3 (en) * | 2009-02-06 | 2012-04-04 | Nike International Ltd | Thermoplastic non-woven textile elements |
US10174447B2 (en) | 2009-02-06 | 2019-01-08 | Nike, Inc. | Thermoplastic non-woven textile elements |
US8850719B2 (en) | 2009-02-06 | 2014-10-07 | Nike, Inc. | Layered thermoplastic non-woven textile elements |
US10138582B2 (en) | 2009-02-06 | 2018-11-27 | Nike, Inc. | Thermoplastic non-woven textile elements |
US10131091B2 (en) | 2009-02-06 | 2018-11-20 | Nike, Inc. | Methods of joining textiles and other elements incorporating a thermoplastic polymer material |
US9227363B2 (en) | 2009-02-06 | 2016-01-05 | Nike, Inc. | Thermoplastic non-woven textile elements |
US10982364B2 (en) | 2009-02-06 | 2021-04-20 | Nike, Inc. | Thermoplastic non-woven textile elements |
US9579848B2 (en) | 2009-02-06 | 2017-02-28 | Nike, Inc. | Methods of joining textiles and other elements incorporating a thermoplastic polymer material |
US10982363B2 (en) | 2009-02-06 | 2021-04-20 | Nike, Inc. | Thermoplastic non-woven textile elements |
US9732454B2 (en) | 2009-02-06 | 2017-08-15 | Nike, Inc. | Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements |
US10625472B2 (en) | 2009-02-06 | 2020-04-21 | Nike, Inc. | Methods of joining textiles and other elements incorporating a thermoplastic polymer material |
WO2010102742A1 (en) * | 2009-03-11 | 2010-09-16 | Nordenia Deutschland Gronau Gmbh | Elastic laminate, in particular for elastic diaper fastening elements |
EP2228209A1 (en) * | 2009-03-11 | 2010-09-15 | Nordenia Deutschland Gronau GmbH | Elastic laminate, suitable for elastic fastening members for diapers |
EP2511407A1 (en) * | 2011-04-11 | 2012-10-17 | Fiberweb Holdings Limited | Multi-layer fabric and process for the making the same |
US11779071B2 (en) | 2012-04-03 | 2023-10-10 | Nike, Inc. | Apparel and other products incorporating a thermoplastic polymer material |
US8906275B2 (en) | 2012-05-29 | 2014-12-09 | Nike, Inc. | Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements |
WO2014097004A1 (en) * | 2012-12-19 | 2014-06-26 | Kimberly-Clark Worldwide, Inc. | Laminate and process for making same |
US11590033B2 (en) | 2013-05-03 | 2023-02-28 | The Procter & Gamble Company | Absorbent articles comprising stretch laminates |
US11179278B2 (en) | 2013-05-03 | 2021-11-23 | The Procter & Gamble Company | Absorbent articles comprising stretch laminates |
US11135100B2 (en) | 2013-05-03 | 2021-10-05 | The Procter & Gamble Company | Absorbent articles comprising stretch laminates |
EP3000451A1 (en) * | 2014-09-23 | 2016-03-30 | Sandler AG | Stretchable nonwoven fabric |
US11504940B2 (en) | 2016-07-15 | 2022-11-22 | Aplix | Laminated assembly and manufacturing method |
CN109476112A (en) * | 2016-07-15 | 2019-03-15 | 埃普利克斯公司 | Tinkertoy module and its manufacturing method |
FR3053921A1 (en) * | 2016-07-15 | 2018-01-19 | Aplix | LAMINATED ASSEMBLY AND METHOD OF MANUFACTURE |
WO2018011516A1 (en) * | 2016-07-15 | 2018-01-18 | Aplix | Laminated assembly and manufacturing method |
US10568776B2 (en) | 2016-08-12 | 2020-02-25 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11446186B2 (en) | 2016-08-12 | 2022-09-20 | The Procter & Gamble Company | Absorbent article with ear portion |
US10959887B2 (en) | 2016-08-12 | 2021-03-30 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11877914B2 (en) | 2016-08-12 | 2024-01-23 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11071654B2 (en) | 2016-08-12 | 2021-07-27 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11083633B2 (en) | 2016-08-12 | 2021-08-10 | The Procter & Gamble Company | Elastic laminates and methods for assembling elastic laminates for absorbent articles |
US10575993B2 (en) | 2016-08-12 | 2020-03-03 | The Procter & Gamble Company | Methods and apparatuses for assembling elastic laminates with different bond densities for absorbent articles |
US10568775B2 (en) | 2016-08-12 | 2020-02-25 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11266543B2 (en) | 2016-08-12 | 2022-03-08 | The Procter & Gamble Company | Methods and apparatuses for assembling elastic laminates with different bond densities for absorbent articles |
US11872113B2 (en) | 2016-08-12 | 2024-01-16 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11331223B2 (en) | 2016-08-12 | 2022-05-17 | The Procter & Gamble Company | Methods and apparatuses for assembling elastic laminates with different bond densities for absorbent articles |
US11382798B2 (en) | 2016-08-12 | 2022-07-12 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11642248B2 (en) | 2016-08-12 | 2023-05-09 | The Procter & Gamble Company | Absorbent article with an ear portion |
US10966876B2 (en) | 2016-08-12 | 2021-04-06 | The Procter & Gamble Company | Methods and apparatuses for assembling elastic laminates with different bond densities for absorbent articles |
US10561537B2 (en) | 2016-08-12 | 2020-02-18 | The Procter & Gamble Company | Elastic laminates and methods for assembling elastic laminates for absorbent articles |
US11642250B2 (en) | 2016-08-12 | 2023-05-09 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11596557B2 (en) | 2016-08-12 | 2023-03-07 | The Procter & Gamble Company | Method and apparatus for assembling absorbent articles |
US11617687B2 (en) | 2016-08-12 | 2023-04-04 | The Procter & Gamble Company | Methods and apparatuses for assembling elastic laminates with different bond densities for absorbent articles |
GB2568203A (en) * | 2016-08-31 | 2019-05-08 | Kimberly Clark Co | Non-stretch bonded elastic with elastic net |
GB2568203B (en) * | 2016-08-31 | 2022-08-17 | Kimberly Clark Co | Non-stretch bonded elastic with elastic net |
WO2018044286A1 (en) * | 2016-08-31 | 2018-03-08 | Kimberly-Clark Worldwide, Inc. | Non-stretch bonded elastic with elastic net |
US11833018B2 (en) | 2017-03-27 | 2023-12-05 | The Procter & Gamble Company | Elastomeric laminate with soft noncrimped spunbond fiber webs |
US11278458B2 (en) | 2017-03-27 | 2022-03-22 | The Procter & Gamble Company | Crimped fiber spunbond nonwoven webs/laminates |
US10952910B2 (en) | 2017-03-27 | 2021-03-23 | The Procter & Gamble Company | Elastomeric laminate with soft noncrimped spunbond fiber webs |
US11944522B2 (en) | 2019-07-01 | 2024-04-02 | The Procter & Gamble Company | Absorbent article with ear portion |
Also Published As
Publication number | Publication date |
---|---|
MXPA04000404A (en) | 2004-03-18 |
EP1424975A1 (en) | 2004-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6726983B2 (en) | Thermocalendered non-woven elastic laminate | |
WO2003007864A1 (en) | Non-woven elastic laminate | |
US11958279B2 (en) | Methods for manufacturing elastic film laminates | |
KR101057924B1 (en) | Stretchable laminates with improved elasticity and methods for their preparation | |
US5921973A (en) | Nonwoven fabric useful for preparing elastic composite fabrics | |
US5843068A (en) | Disposable diaper having elastic side panels | |
EP1131479B1 (en) | Unidirectionally cold stretched nonwoven webs of multipolymer fibers for stretch fabrics and disposable absorbent articles containing them | |
KR100695849B1 (en) | Variable Stretch Material and Process to Make it | |
US6620485B1 (en) | Stable web having enhanced extensibility and method for making the same | |
AU2008233297B2 (en) | Elastomeric laminate materials that do not require mechanical activation | |
JP2003522043A (en) | A stretch-restorable composite material comprising a laminate of a layer of elastic material and a layer of transversely stretched necked inelastic sheet | |
US20070105472A1 (en) | Non-woven fabric laminate/elastomer/non-woven fabric | |
WO2009025975A1 (en) | Stretchable elastic nonwoven laminates | |
HU220305B (en) | An elastic laminated sheet of an incrementally stretched nonwoven fibrous web and elastomeric film and method | |
JP2005511345A (en) | Absorbent articles using double-sided flexible elastic components | |
JP2002533243A (en) | Necked laminate with lateral expansion and contraction of non-elastic sheet layers | |
CA2262574C (en) | Stable web having enhanced extensibility and method for making same | |
WO1995003443A1 (en) | Composite elastic nonwoven fabric | |
AU2001277906B2 (en) | Non-woven elastic laminate | |
JPH05222601A (en) | Elastic composite material and its production | |
AU2001277906A1 (en) | Non-woven elastic laminate | |
WO2000030581A1 (en) | Disposable diaper having elastic side panels | |
JP3990875B2 (en) | Elastic stretch composite sheet | |
JP3366759B2 (en) | Complex with restricted expansion and contraction direction |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2001277906 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2004/000404 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001955852 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 2001955852 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001955852 Country of ref document: EP |