EP1261767B1 - Tissu composite non tisse et son procede de fabrication - Google Patents

Tissu composite non tisse et son procede de fabrication Download PDF

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Publication number
EP1261767B1
EP1261767B1 EP01900895A EP01900895A EP1261767B1 EP 1261767 B1 EP1261767 B1 EP 1261767B1 EP 01900895 A EP01900895 A EP 01900895A EP 01900895 A EP01900895 A EP 01900895A EP 1261767 B1 EP1261767 B1 EP 1261767B1
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EP
European Patent Office
Prior art keywords
web
nonwoven
bonding
filaments
fibers
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Revoked
Application number
EP01900895A
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German (de)
English (en)
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EP1261767A1 (fr
Inventor
Graham Kirk Duncan
Alan William Meierhoefer
Raymond Anthony Volpe
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Ahlstrom Nonwovens LLC
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Ahlstrom Nonwovens LLC
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    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling 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
    • 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
    • D04H1/425—Cellulose 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
    • D04H1/44—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
    • 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
    • D04H1/498—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 entanglement of layered webs
    • 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
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding

Definitions

  • This present invention relates to a process for the manufacture of composite fabrics.
  • the invention relates especially to processes for the manufacture of composite fabrics in which a fibrous web that comprises wood-pulp fibers is joined to a spunlaid web, and to processes wherein the joining of the webs is effected by hydroentanglement.
  • the present invention provides a process for producing a composite nonwoven fabric comprising:
  • the filaments in the first web are preferably of man-made polymer.
  • fiber entanglement and the like herein include fiber-filament entanglement as well as fiber-fiber entanglement.
  • the said first web may be regarded as a base web.
  • the base web material preferably comprises synthetic or other man-made filaments or fibers, in particular substantially continuous filaments.
  • the base web material will generally comprise filaments or fibers made of a thermoplastic material, for example filaments or fibers of a polyamide, polyurethane, polyester or polyolefin, or a copolymer, e.g. block copolymer, containing olefin monomer units.
  • the base web may also comprise, or consist of, bi-component or bi-constituent or mixed filaments or fibers. Suitable thermoplastic filamentary materials are disclosed in US-A-5 151 320 and US-A-5 573 841 .
  • tho base web comprises polyester filaments, especially polyethylene terephthalate (PET) filaments, or polyolefin filaments, for example polyethylene or polypropylene filaments.
  • PET polyethylene terephthalate
  • polyolefin filaments for example polyethylene or polypropylene filaments.
  • Man-made cellulosic fibers such as viscose rayon or lyocell fibers, may also come into consideration.
  • tho base web material may comprise a mixture of filaments or fibers of different materials, e.g., different thermoplastic materials.
  • the base web material will consist of, or consist essentially of, man-mado, especially synthetic, and more especially thermoplastic, filaments and/or fibers, the presence of other, non-interfering components is not precluded.
  • the filaments or fibers will usually have a linear density of from 0.1 to 6 denier (0.0111 to 0.667 tox), e.g., from 0.3 to 4.6 denier (0.033 to 0.5 tex) and typically from 0.5 to 3.5 denier (0.056 to 0.389 tex).
  • the web is less than fully bonded sufficient for it to maintain its integrity during handling in the hydroentanglement process.
  • the bonding is effected by thermal bonding, although other bonding methods, such as hydroentanglement, needle bonding, chemical bonding or adhesive bonding, may come into consideration, instead of or in addition to the thermal bonding.
  • the base web is a spun-laid web.
  • the base material in any embodiment is not be fully bonded.
  • such a material may be obtained by the normal methods for the production of bonded nonwoven materials with the modification that at least one of the usual bonding steps, e.g., the final bonding step, is omitted or carried out in a manner that is less intensive than normal, for example by using lower bonding temperatures, shorter bonding times, lower bonding pressures, lower entanglement energy inputs, lower needle density, lesser amounts of adhesive or other chemicals, or the like, as appropriate to the particular bonding method.
  • spunlaid nonwovens or "spunbonded” materials are produced by bonding a spunlaid web by one or more techniques to provide fabric integrity.
  • the spin laying of webs is disclosed, for example, in US-A-4 340 563 and US-A-3 692 618 .
  • the bonding or consolidation operation is normally carried out by means of a thermal calendering process involving the application of heat and pressure to the unbonded web. Full or complete bonding of the web material is indicated by the characteristic that thermal calendering of the unbonded web material at increased temperatures and/or pressures does not improve the strength properties of the resulting web material.
  • a spunlaid web comprising polyethylene terephthalate filaments may be thermally calendered at a temperature below the melting point of the polymer (about 265°C) and at a "normal" pressure to produce a fully bonded nonwoven web. Naturally more than one combination of temperature and pressure will result in a fully bonded web material.
  • a less than-fully bonded spunlaid nonwoven material may be obtained by carrying out the thermal calendering process at a temperature that is lower than the melting point of the material from which the nonwoven has been made, for example lower than the softening point of that material and/or at a pressure below that normally used for that material.
  • the above spunlaid web comprising polyethylene terephthalate filaments may be thermally calendered at a temperature of from 80°C to 180°C, or more typically from 140°C to 160° C and at a pressure equal to, or more preferably less than, the above normal pressure to provide a less than fully bonded nonwoven wob material.
  • thermals calendering temperature should exceed the glass transition temperature of the polymer used, for example 80°C in the case of polyethylene terephthalate.
  • the selection of a particular combination of material and thermal calendering temperature and pressure will result in a nonwoven web ranging from unbonded to fully bonded.
  • the Invention is most advantageous with base web materials that have been less than fully bonded to a point sufficient only to provide for base web integrity until subsequent entanglement with the below-described second web.
  • the base web material prior to the entanglement process, may optionally be subjected to cross stretching by at least 5 percent of its original extent, as described in US-A-5 151 320 .
  • the said second web Prior to the entanglement process, the said second web, being a web comprising cellulose pulp fibers, is applied to the base web material.
  • the web containing cellulose pulp fibers may be applied as a pre-formed web or tissue or may be formed on the base web material, for example by means of a wet-laying or air-laying process.
  • the use of a pre-formed web (e.g. one formed by a wet-laying process) containing cellulose pulp fibers is currently preferred for manufacturing reasons. Ways in which a web comprising cellulose pulp fibers may be applied to a base web material are disclosed in the above-mentioned US-A-5 151 320 and US-A-5 673 841 .
  • the cellulose pulp fibers may be derived from a wide range of naturally occurring sources of cellulose fibers, and are preferably wood pulp fibers (including hardwood pulp, soft wood pulp and mixtures thereof), although non-wood vegetable pulp fibers such as those derived from cotton, flax sisal, hemp, jute, esparto grass, bagasse, straw and abaca fibers may also come into consideration. Mixtures of various cellulose pulp fibers may also be used.
  • the cellulose pulp fibers which may be used, include conventional short papermaking fibers, particularly having a fiber length of 25mm or less.
  • the average fiber length is typically greater than 0.7mm and is most preferably from 1.5 to 5mm.
  • Conventional papermaking fibers include the conventional papermaking wood pulp fibers produced by the well-known Kraft process.
  • said second web is formed entirely, or substantially entirely, of cellulose pulp fibers, and more preferably wood pulp.
  • the second web may also comprise synthetic or other man-made fibers, for example in an amount of up to 50 percent by weight of the total fiber content of the cellulose fiber-containing web based on economic considerations. Synthetic or man-made fibers can be added in greater amounts to achieve other desired properties.
  • man-made fibers include, for example, fibers made of rayon, polyester, polyolefin (e.g., polyethylene or polypropylene), polyamide (e.g., a nylon) or the like.
  • Suitable man-made fibers include those having a fiber length of from about 3 to 25 mm and a denier per filament of 1.0 to 3.0 (0.111 to 0.333 tex).
  • the basis weights (grammages) of the first and second webs may be selected according to the fiber and/or filament constitution and the intended end use.
  • the first web e.g., a spunlaid nonwoven web
  • the second web for example, a web formed of wood pulp fibers, will have a basis weight of, in general, from 5 to 100, preferably from 10 to 80 and typically from 20 to 60, gsm
  • the structure After assembly of the multi-layer structure comprising the base web material and the cellulose-fiber-containing web, the structure is subjected to a hydroentanglement operation, preferably a low to medium pressure hydroentanglement operation. Hydroentanglement operations are described in US-A-4 883 709 (Nozaki ) and in US-A-5 009 747 (Viazmensky et al. ).
  • the hydroentanglament operation is preferably carried out by passing the multi-layer structure under a series of fluid streams or jots that directly impinge upon the top surface of the celluloso-fiber-containing layer with sufficient force to cause a proportion of the fibers therein, especially the short papermaking fibers, to be propelled into and entangled with the base web material.
  • a series or bank of jets is employed with the orifices and spacing between the orifices being substantially as disclosed in the aforesaid Nozakl patent or the Viazmensky et al. patent.
  • the said fluid streams or jets are preferably streams or jets of an aqueous liquid.
  • the total energy input provided by the fluid jets or streams may be calculated by the formula.
  • E 0.125 YPG / bS
  • Y the number of orifices per linear inch of manifold width
  • P the pressure in psig (pounds per square inch gauge) of liquid in the manifold
  • G the volumetric flow in cubic feet per minute per orifice
  • S the speed of the web material under the fluid jets or streams in feet per minute
  • b the basis weight of the fabric produced in ounces per square yard.
  • the total amount of energy, E, expended in treating the web is the sum of the Individual energy values for each pass under each manifold, if there is more than one manifold and/or if there is more than one pass.
  • the total energy input is from 0.07 to 0.4 horsepower-hours per pound (HPhr/Ib) (0.41 to 2.37 MJ/kg).
  • HPhr/Ib horsepower-hours per pound
  • the total energy input is from 0.1 to 0.3 HPhr/Ib (0.59 to 1.78 MJ/kg), more preferably from 0.12 to 0.28 HPhr/Ib (0.71 to 1.66 MJ/kg).
  • the less than fully bonded nonwoven base web material having a low bond intensity that is employed, in accordance with the present invention would have been expected to provide a comparatively low-strength base for combining with the fibrous sheet or web that contains cellulose fibers.
  • the strength of the composite is significantly greater than that of the starting nonwoven base web material.
  • the strength of the composite increases with higher pressures and/or higher energies used in the hydroentanglement process.
  • the beneficial effects of the wood pulp on the strength of the composite is unexpected because, first, there is no obvious mechanism whereby the cellulose may bond with the polymers used in the base web material (in particular PET or polypropylene) and, second, it is conceivable that the wood pulp would have acted to absorb energy from the entanglement, jets and hence reduce their effect on strength generation.
  • the base web material in particular PET or polypropylene
  • our studies have shown that, although the starting strength of the spunbonded material may be higher, it changes much less during the entanglement process.
  • the strength of the untreated base web contributes no more than 35%, of the final composite strength, in particular of the total tensile strength of the final composite.
  • the strength may be measured, for example, as the tensile strength in the machine direction (MD) or cross direction (CD) or as the total tensile strength (sum of the MD+CD tensile strengths).
  • the composite nonwoven fabrics manufactured according to the present invention may find use in a variety of applications, for example, as molding substrates (e.g., in the automotive industry), as geotextiles, as wiping materials, both wet and dry, and in the medical field as disposable garments such as surgical gowns and drapes.
  • the composite fabrics of the present invention may include, in addition to the above-discussed fibrous components, various other additives such as surfactants, fire retardants, pigments, liquid-repellants, super-absorbents, molecular sieves, and various other particulates such as starches, activated charcoal or clay.
  • the use of the present invention can give rise to products having excellent aesthetic qualities. Entanglement of pulp fibers and the like into conventional fully thermally bonded spunlaid nonwovens normally results in a non-uniform appearance. For example, the thermal bondpoints become exposed and give the impression of defects or pinholes or lack of integrity.
  • a less-than-fully bonded spunlaid nonwoven in accordance with this invention it is possible to overcome that deficiency, and to do so with little or no detriment to the strength of the final composite nonwoven.
  • composite nonwoven fabrics that have improved bulk, hand and absorbency.
  • the inventive composite nonwoven fabrics can also be dried satisfactorily without the formation of cockles.
  • a spunlaid base web having a nominal base weight of 30 gsm and comprising 100% PET 1-denier (0.111 tex) fibers was overlaid with a tissue in the form of a web comprising wood pulp fibers (Crofton ECH/Harmac K10S) containing approximately 38 gsm bone-dry fiber.
  • the resultant multi-layer composite was then passed through a production-size hydroentanglement machine in which jets of water were directed at the tissue side of the said composite. Suction was applied from beneath the composite by means of vacuum boxes, in order to remove excess water.
  • Table 1 Two different profiles of the water-jet apparatus were employed, which profiles are summarized in Table 1 hereinafter.
  • the column numbers 1 to 10 indicate the sequence of the nozzles.
  • the figures in the "Dia” rows are the nozzle diameters expressed in ⁇ m.
  • the density of the 90 ⁇ m holes in the injectors was 2000 per meter (51 per inch) and the density of the 120 ⁇ m holes was 1666 per meter (45.2 per inch).
  • the speed of the composite through the hydroentanglement machine was 46 meters per minute.
  • base webs were identified as follows: Web 1: Base web was bonded at 120°C. Web 2: Base web was bonded at 160°C. Web 3: Base web was bonded at 210°C and represents a reference, normally bonded material.
  • the composite nonwoven fabrics obtained by hydroentanglement were tested for various physical properties and the results obtained are shown hereinafter.
  • the test methods were: Basis Weight TAPPI T410 Tensile Strength TAPPI T494* Elongation TAPPI T494* Elemendorf Tear TAPPI T414 *using a strain rate of 300 mm/min.
  • Table 2 shows the results for the said composite nonwoven fabrics under the heading "Base web + tissue", the particular web being identified at the top of each column of results.
  • the entanglement profile used is shown below. Tests were also carried out on samples of the starting spunbonded base webs without the addition of the tissue, and the results obtained are also shown in Table 2, under the heading "Base web”.
  • TABLE 9 Web 2 Web 3 Nominal basis weight (gsm) 30 30 Fiber diameter (denier) 1.0 1.0 Bonding temperature (°C) 160 °C 210 °C Web 3 represents a reference, normally bonded material.
  • the strength of the baseweb is increased by a surprisingly large amount, i.e., the total tensile strength increases from 659 N/m in the baseweb alone to 1461 N/m after entanglement with 5 gsm of woodpulp (baseweb contributing only 45% of the final strength).

Claims (12)

  1. Procédé pour la production d'un nontissé composite comprenant :
    la formation d'un premier voile non tissé qui comprend des filaments de polymère ;
    le liage non total de la matière du premier voile, dans lequel le premier voile est non totalement lié par thermoliage, hydro-enchevêtrement, aiguilletage, liage chimique ou liage par adhésif à l'aide de conditions de liage qui sont moins sévères que celles utilisées pour réaliser une matière non tissée totalement liée ;
    l'apposition d'un second voile non tissé constitué de fibres de cellulose adjacent au premier voile, dans laquelle le second voile non tissé soit est appliqué sous forme d'un voile ou tissu préformé soit est formé sur le premier voile non tissé ; et
    le rattachement du second voile au premier voile par enchevêtrement de fibres ;
    dans lequel la résistance du premier voile après liage n'est pas supérieure à 35 % de la résistance du tissu composite.
  2. Procédé selon la revendication 1 dans lequel le premier voile non tissé est non totalement lié par thermoliage.
  3. Procédé selon la revendication 1 dans lequel le premier voile non tissé est non totalement lié par calandrage thermique à une température au-dessous d'un point de fusion ou d'un point de ramollissement des filaments.
  4. Procédé selon l'une quelconque des revendications précédentes comprenant l'étape de dépôt de fibres de cellulose en voie humide pour former le second voile.
  5. Procédé selon l'une quelconque des revendications 1 à 3 comprenant l'étape de dépôt en voie humide ou de dépôt aérodynamique de fibres de cellulose pour former le second voile.
  6. Procédé selon l'une quelconque des revendications précédentes comprenant l'étape de dépôt des fibres de cellulose en voie humide pour former le second voile avant l'étape d'apposition du second voile adjacent au premier voile.
  7. Procédé selon l'une quelconque des revendications précédentes dans lequel l'étape de rattachement comprend l'hydro-enchevêtrement des fibres du second voile dans le premier voile avec un apport total d'énergie d'enchevêtrement dans la plage de 0,07 à 0,4 cheval-vapeur-heure par livre (0,41 à 2,37 MJ/kg).
  8. Tissu composite selon l'une quelconque des revendications précédentes dans lequel le premier voile comprend des filaments formés en voie fondue (spunlaid).
  9. Tissu composite selon l'une quelconque des revendications précédentes dans lequel le premier voile comprend des filaments formés en voie fondue d'une matière choisie dans le groupe constitué par le poly(téréphtalate d'éthylène), le polypropylène et les mélanges de ceux-ci.
  10. Tissu composite selon l'une quelconque des revendications précédentes dans lequel le premier voile est constitué de filaments thermoplastiques ayant un denier dans la plage de 0,5 à 2,5 (une masse linéique de 0,56 à 2,78 dtex).
  11. Tissu composite selon l'une quelconque des revendications précédentes dans lequel la matière du premier voile comprend au moins un constituant parmi les filaments bicomposés, les fibres bicomposées, les filaments biconstitués et les fibres biconstituées.
  12. Tissu composite selon l'une quelconque des revendications précédentes dans lequel le second voile contient des fibres synthétiques en une quantité allant jusqu'à 50 % en poids de la teneur totale des fibres du second voile.
EP01900895A 2000-01-06 2001-01-05 Tissu composite non tisse et son procede de fabrication Revoked EP1261767B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17475000P 2000-01-06 2000-01-06
US174750P 2000-01-06
PCT/US2001/000320 WO2001049914A1 (fr) 2000-01-06 2001-01-05 Tissu composite non tisse et son procede de fabrication

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EP1261767A1 EP1261767A1 (fr) 2002-12-04
EP1261767B1 true EP1261767B1 (fr) 2011-09-28

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EP01900895A Revoked EP1261767B1 (fr) 2000-01-06 2001-01-05 Tissu composite non tisse et son procede de fabrication

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EP (1) EP1261767B1 (fr)
JP (1) JP2003519298A (fr)
AT (1) ATE526443T1 (fr)
ES (1) ES2374714T3 (fr)
WO (1) WO2001049914A1 (fr)

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AU2002239380A1 (en) * 2000-11-29 2002-06-11 Polymer Group, Inc. Method for forming laminate nonwoven fabric
ITMI20012521A1 (it) * 2001-11-30 2003-05-30 Orlandi Spa Tessuto coprimaterassi ad effetto barriera
US20040010894A1 (en) * 2002-07-17 2004-01-22 Avgol Ltd. Method for making a hydroentangled nonwoven fabric and the fabric made thereby
ITMI20031548A1 (it) 2003-07-29 2005-01-30 Orlandi Spa Fazzoletti in tessuto non-tessuto
US7452832B2 (en) * 2003-12-15 2008-11-18 E.I. Du Pont De Nemors And Company Full-surface bonded multiple component melt-spun nonwoven web
DE102004051298A1 (de) * 2004-10-20 2006-04-27 Kalle Gmbh Faservlies mit verbesserter Naß- und Alkalifestigkeit und damit hergestellte Nahrungsmittelhülle auf Basis von Cellulosehydrat
DE102007023806A1 (de) 2007-05-21 2008-11-27 Carl Freudenberg Kg Lagenverbund zur Verwendung in einem Luftfilter
KR101221936B1 (ko) 2011-04-26 2013-01-15 건양대학교산학협력단 습식형 모시 부직포 및 그 제조방법
JP2021098917A (ja) * 2019-12-23 2021-07-01 傑 韓 不織布および不織布の製造方法

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US6110848A (en) * 1998-10-09 2000-08-29 Fort James Corporation Hydroentangled three ply webs and products made therefrom

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ATE526443T1 (de) 2011-10-15
JP2003519298A (ja) 2003-06-17
ES2374714T3 (es) 2012-02-21
EP1261767A1 (fr) 2002-12-04
WO2001049914A1 (fr) 2001-07-12

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