GB2394231A - Non-woven textile structure incorporating stabilized filament assemblies - Google Patents

Non-woven textile structure incorporating stabilized filament assemblies Download PDF

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Publication number
GB2394231A
GB2394231A GB0303292A GB0303292A GB2394231A GB 2394231 A GB2394231 A GB 2394231A GB 0303292 A GB0303292 A GB 0303292A GB 0303292 A GB0303292 A GB 0303292A GB 2394231 A GB2394231 A GB 2394231A
Authority
GB
United Kingdom
Prior art keywords
packs
filament assembly
rods
structure
filament
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0303292A
Other versions
GB0303292D0 (en
Inventor
Georg Martin Barth
Edmund Hugh Carus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lohmann KG
Original Assignee
Lohmann KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US10/271,766 priority Critical patent/US6962042B2/en
Application filed by Lohmann KG filed Critical Lohmann KG
Publication of GB0303292D0 publication Critical patent/GB0303292D0/en
Publication of GB2394231A publication Critical patent/GB2394231A/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577Apparatus or processes for manufacturing
    • A61F13/15617Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/1565Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers of fibrous material between webs, e.g. wrapping layers of fibrous material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577Apparatus or processes for manufacturing
    • A61F13/15666Wrapping formed fibrous webs or pads, e.g. the pads being formed by uniting pad pieces cut from fibrous webs
    • A61F13/15691Wrapping formed fibrous webs or pads, e.g. the pads being formed by uniting pad pieces cut from fibrous webs by inserting webs or pads in a tube or a netting, e.g. involving forming of the tube or netting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F13/53717Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the horizontal direction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/538Absorbent 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 absorbing medium characterised by specific fibre orientation or weave
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/02Layered 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
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/07Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
    • D04H3/077Stick, rod or solid cylinder shaped
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/538Absorbent 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 absorbing medium characterised by specific fibre orientation or weave
    • A61F2013/5383Absorbent 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 absorbing medium characterised by specific fibre orientation or weave by the fibre orientation in the x-y plane

Abstract

A method of producing a nonwoven textile structure comprises the steps of: (a) stretching a plurality of substantially parallel continuous tow filaments 1 of absorbent material, such as cellulose acetate or solvent spun rayon, to provide a filament assembly, (b) consolidating the resulting filament assembly 4 by a compacting operation (at 5) to produce a three-dimensional rod or pack while maintaining substantially uninterrupted capillarity along the entire length of the filament assembly, and (c) wrapping the three-dimensional rod or pack 6 in a water porous material 7. A plurality of the resulting wrapped rods or packs 9 may then be incorporated into a composite structure, such as that used for a thin diaper. Such wrapped rods or packs exhibit excellent fluid transmission and wet strength characteristics and may be used in the fields of sanitary protection, infant care and adult incontinence protection.

Description

239423 1

( Non-woven Textile Structure incorporating Stabilized Filament Assemblies The present invention relates to nonwoven textile materials and in particular to composite absorbent textile materials.

The present invention has particular application to absorbent textile structures for uses in the fields of sanitary protection, infant care and adult incontinence protection.

WO 99/27876, WO 99/27879, WO 99/30661, WO 00/56258 and WO 01/72253 A1, (SCA Hygiene Products AB) and US 2002/0026699A1, US 2002/0029026A1, US 2002/0028624A1, US 2002/0029023A1, US 2002/0029024A1, US 2002/0029025A1

and US 2002/004941 9A1 (Uni-Charm Corporation) all describe use of filament "tows" as a fluid acquisition material in infant diapers and the like but as only one component in the absorbent matrices specified. More particularly, these specifications disclose production of a layer or layers of continuous "tow" filaments

which are bonded in various ways and which may be of cellulose acetate, or of polyethylene, polypropylene, polyamide, polyester, polyvinyl acetate, viscose or rayon, or bi-component polymers. Steps in production of said layer can include crimping or curling, then stretching and distributing the "tow" filaments in various ways, then bonding same in a pattern of lines, spots or points by any suitable technique including thermal or ultrasonic bonding, calendering, laser or print-bonding or undefined hydroentanglement. The filaments are cut to length either before or after the aforesaid bonding. In some cases, the "tow" filaments are bonded, at the same time as the pattern of bonding mentioned above, to a liquid containment layer which can be a non-woven composite material. Conventional bonding techniques

( are described, all of which would depress the performance of such tow assemblies by capillary blockage at points of bonding.

An object of this invention is to develop the methodology disclosed in the applicant's earlier W000/63479 and provide an improved manner of handling continuous filaments to facilitate their incorporation into a finished product which has enhanced properties, e.g. of absorbency and/or fluid management, compared to known products. A method of producing a non- woven textile structure is now proposed which comprises the steps of: (a) stretching a plurality of substantially parallel continuous tow filaments of absorbent material to provide a filament assembly, (b) consolidating said filament assembly by a compacting operation to produce a threedimensional rod or pack while maintaining substantially uninterrupted capillarity along the entire length of said filament assembly, and (c) wrapping the three-dimensional rod or pack in a water porous material.

In the finished product significant improvements in fluid management, notably winking and fluid containment are apparent over currently used materials. This is because the processing of the filament assembly is such as to maintain substantially uninterrupted capillarity along its entire length.

In accordance with the present invention the processing of the filament assemblies or tows can be reduced to stretching, shaping and wrapping operations. Multifilament rods or packs of chosen size and crosssectional shape can be produced from bales of crimped tow by stretching such tow and by subsequent consolidation of same into bundles of round or oval or oblong (rectangular) cross-section which exhibit

/ uninterrupted capillarity along their entire length. Structural stabilization of these filament bundles, which may in practice resemble cigarette-type filter rods, is maintained by a simple fluid permeable wetstrength wrap material, for instance a highly porous nonwoven material.

The composition of such tow filament assemblies can, of course, be selected for optimum end-use performance.

The size of the consolidated filament packs or rods is dependent on the end use of the products containing same and the nature of the fluids being considered for entrapment. These consolidated filament packs or rods can be positioned in controlled spaced apart arrays across the finished composites with one or more nonwoven outer layer(s) providing the full composite finished width.

Whilst any polymer filaments which can be rendered hydrophilic can be considered applicable for production of these three-dimensional consolidated bundles or rods, either alone or with other polymers to form blended filament assemblies, the preferred polymer is cellulose acetate which achieves outstanding fluid take up and wicking properties. Staple cellulose acetate fibre has been used in non-woven fabrics in the past and reported in literature by Celanese Acetate LLC and other sources such as Kimberly-Clark but such non-woven materials have been conventional web-

like structures without the use of shaped bundles or rods of filaments. Solvent spun rayons, as produced for example by Lenzing AG and Acordis Plc, are also a favourable option.

The fluid management performance of filament assemblies produced in accordance with the invention can be optimised by the careful selection of filament diameters and packing density. Mixtures of coarser and finer filaments may be advantageous since

( filament spacing and the presence of capillaries are required for optimum fluid management. In this regard, the use, in the assemblies of the invention, of filaments which have "Y" shaped or "stellar" shaped cross-section or the like may be advantageous since the crevices running along such shaped filaments act like fine capillary structures thus enhancing fluid wicking and full utilization of the composite structures. Many well known nonwoven technologies are suitable for bonding such consolidated and wrapped filament packs or rods (collectively referred to herein as "bundles") to a carrier layer of fibres, filaments or a nonwoven web made from similar material to the consolidated filament assemblies themselves. These include known processes whereby pulp fibres can be blown onto and around consolidated, wrapped filament assemblies produced according to the invention. The positioning of these consolidated assemblies in absorbent composite structures can be enhanced by the use of binding agents or binding fibres. The latter may be bicomponent fibres such as sheath/core or side by side types as known in airlaid structures or they may be related melt blown fibres and used in Kimberley-Clark "COFORM" materials. In these cases previous inadequate fluid wicking is overcome due to the three-

dimensional structure of the compacted multifilament rods or packs of the invention coupled with the presence of long filaments and uninterrupted capillarity.

The consolidated multi-filament bundles of the invention are advantageous when combined with other materials, for example fluff-pulp/superabsorbent airlaid fluid containment composites as currently used in hygiene applications since the filament bundles facilitate fluid transfer to all parts of the total composite. The traditional approach is to use a nonwoven layer to facilitate fluid flow to the fluff-

pulp/superabsorbent layer. However, nonwoven layers used to date tend to intrinsically "lock" fluids in place and prevent effective total absorbent composite

( utilization, particularly on second and third fluid insults. When the consolidated filament bundles of the invention are positioned above or more preferably within a fluff-pulp/superabsorbent medium (but with one edge available to receive fluid immediately on insult) the uninterrupted capillarity of such bundles allows for effective and maximised utilization of such composites.

The invention will be exemplified by reference to the accompanying drawings, in which: Figure 1 is a sketch illustrating apparatus used for the production of an embodiment of consolidated three-dimensional filament rods in accordance with the invention; Figure 2 is a perspective, partial sketch of the product of the apparatus of Figure 1; Figure 3 is a sketch illustrating a portion of one version of a completed composite containing filament rods as produced in accordance with the invention; and Figure 4 is an end view of the composite of Figure 3.

Figure 1 illustrates a three step in-line consolidation procedure for forming multifilament rods of substantially circular cross-section form, in this case, cellulose acetate spun filaments. Spun filaments 1 are drawn from a bale 2 of crimped filamentary tow, as is commercially available, and are subjected to stretching, at least longitudinally, using textile drafting rollers 3. The parallel stretched filaments 4 are then drawn and compressed into an elongate cylindrical form in a tunnel device 5. A compacted three-dimensional structure 6 of substantially circular cross-section results. At this stage the density of the cellulose acetate filaments may be in the region of 5 denier/fir.

( This multi-filament structure 6 is held in its desired compacted form by a highly porous water insoluble lightweight nonwoven fabric 7 which is wrapped around the three-dimensional structure 6 and lightly adhered to itself (at 8). An ideal material for this purpose is a wet laid "tea bag" hydroentangled material (as produced by Crompton Plc for example) containing a binder for self-adherence. Such material, at a typical weight of 20 grams per square metre, exhibits superb fluid transmission and wet strength.

Optimum capillarity for resultant wrapped filament rod 9 (Figure 2) has been obtained using 5 denier cellulose acetate filaments at a controlled packing density of 0.05 grams/cc. Figures 3 and 4 illustrate a composite structure suitable for hygiene applications.

Cellulose acetate filament rod assemblies 10 made as described with reference to Figure 1 are deposited and partially embedded in an airlaid structure 11 (formed at 12) containing pulp, superabsorbent polymer and low temperature binding fibres.

The composite product is used with the rod assemblies facing the direction from which fluid is to be received. Such composite structures exhibit fluid distribution by the filament rods 10 to the entire length of the airlaid structure 11 by both longitudinal and lateral liquid spreading. This structure is ideal for incorporation into thin diaper absorbent composites.

Claims (10)

( Claims
1. A method of producing a nonwoven textile structure comprising the steps of: (a) stretching a plurality of substantially parallel continuous tow filaments of absorbent material to provide a filament assembly, (b) consolidating said filament assembly by a compacting operation to produce a three-dimensional rod or pack while maintaining substantially uninterrupted capillarity along the entire length of said filament assembly, and (c) wrapping the three-dimensional rod or pack in a water porous material.
2. A method according to claim 1 including the further step of incorporating a plurality of the resulting wrapped rods or packs into a composite structure.
3. A method according to claim 2 wherein the wrapped rods or packs are cut at intervals and an array of longitudinally and/or transversely spaced apart wrapped rods packs are incorporated into the composite.
4. An absorbent nonwoven structure produced by the method set forth in claim 1.
5. A structure according to claim 4 wherein the filament assembly comprises cellulose acetate.
(
6. A structure according to claim 4 wherein the filament assembly comprises solvent spun rayon.
7. An absorbent composite nonwoven structure produced by the method set forth in claim 2 or 3.
8. A structure according to claim 7 wherein the wrapped rods or packs are bonded to a carrier layer or between respective outer layers.
9. A structure according to claim 7 wherein the rods or packs are embedded in a fluff-pulp matrix.
10. A structure according to claim 7, 8 or 9 further including one or more of a superabsorbent polymer, binding fibres and chemical binders to facilitate fluid take up and distribution.
GB0303292A 2000-04-18 2003-02-13 Non-woven textile structure incorporating stabilized filament assemblies Withdrawn GB2394231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/271,766 US6962042B2 (en) 2000-04-18 2002-10-17 Non woven textile structure incorporating stabilized filament assemblies

Publications (2)

Publication Number Publication Date
GB0303292D0 GB0303292D0 (en) 2003-03-19
GB2394231A true GB2394231A (en) 2004-04-21

Family

ID=23036979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0303292A Withdrawn GB2394231A (en) 2000-04-18 2003-02-13 Non-woven textile structure incorporating stabilized filament assemblies

Country Status (3)

Country Link
AU (1) AU2003271887A1 (en)
GB (1) GB2394231A (en)
WO (1) WO2004035901A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080113574A1 (en) * 2006-11-14 2008-05-15 Neron Rene B Wound care product made from bulked filament tow

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1105968A (en) * 1963-11-21 1968-03-13 Celanese Corp Webs of crimped continuous filaments
WO2000063479A1 (en) * 2000-04-18 2000-10-26 Lohmann Gmbh & Co. Kg Non woven textile structure incorporating stabilized filament assemblies
US20030003639A1 (en) * 1999-04-26 2003-01-02 Takayuki Kanda Method of manufacturing a semiconductor integrated circuit device
US20030003415A1 (en) * 2000-08-25 2003-01-02 Kim Tae Weon Apparatus for precisely locating an orthodontic bracket at a predetermined position on a surface of a tooth

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365872A (en) * 1964-09-17 1968-01-30 Du Pont Yarn wrapped with surface fibers locked in place by core elements
US4079568A (en) * 1976-06-01 1978-03-21 Harold Wortman Method for forming fiber-filled articles
US4346553A (en) * 1979-11-09 1982-08-31 Conshohocken Cotton Co., Inc. Helically wrapped yarn
SE514391C2 (en) * 1997-12-03 2001-02-19 Sca Hygiene Prod Ab An article

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1105968A (en) * 1963-11-21 1968-03-13 Celanese Corp Webs of crimped continuous filaments
US20030003639A1 (en) * 1999-04-26 2003-01-02 Takayuki Kanda Method of manufacturing a semiconductor integrated circuit device
WO2000063479A1 (en) * 2000-04-18 2000-10-26 Lohmann Gmbh & Co. Kg Non woven textile structure incorporating stabilized filament assemblies
US20030003415A1 (en) * 2000-08-25 2003-01-02 Kim Tae Weon Apparatus for precisely locating an orthodontic bracket at a predetermined position on a surface of a tooth

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Publication number Publication date
AU2003271887A1 (en) 2004-05-04
WO2004035901A1 (en) 2004-04-29
GB0303292D0 (en) 2003-03-19

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