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WO1996013071A1 - Non-tisses pour separateurs d'accumulateurs comprenant un voile de fibres de cellulose filees avec solvant - Google Patents

Non-tisses pour separateurs d'accumulateurs comprenant un voile de fibres de cellulose filees avec solvant Download PDF

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Publication number
WO1996013071A1
WO1996013071A1 PCT/GB1995/002474 GB9502474W WO9613071A1 WO 1996013071 A1 WO1996013071 A1 WO 1996013071A1 GB 9502474 W GB9502474 W GB 9502474W WO 9613071 A1 WO9613071 A1 WO 9613071A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibers
woven material
battery
material according
separator
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.)
Ceased
Application number
PCT/GB1995/002474
Other languages
English (en)
Inventor
Andrew Arthur James Kelly
Calvin Roger Woodings
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.)
Bonded Fibre Fabric Ltd
Akzo Nobel UK PLC
Original Assignee
Bonded Fibre Fabric Ltd
Courtaulds PLC
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
Application filed by Bonded Fibre Fabric Ltd, Courtaulds PLC filed Critical Bonded Fibre Fabric Ltd
Priority to AU36709/95A priority Critical patent/AU3670995A/en
Publication of WO1996013071A1 publication Critical patent/WO1996013071A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • D04H1/4258—Regenerated cellulose series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/429—Natural polymers
    • 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
    • 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
    • D04H1/42—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
    • D04H1/4309—Polyvinyl alcohol
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/44—Fibrous material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • H01M50/454—Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0014—Alkaline electrolytes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This invention concerns non-woven fabrics which can be used, for example, to make battery separators, particularly (but not exclusively) for alkaline batteries.
  • the separator for a battery not only performs the function of physically separating the positive and negative electrodes of the battery but it has to contain sufficient of the battery electrolyte to enable the necessary reactions to occur within the battery without significant increases in internal resistance.
  • the separators it is important for the separators to show rapid wicking of the electrolyte, that is rapid absorption of the electrolyte when electrolyte is applied to one end of a separator. Slow wicking necessitates slowing down of the speed of manufacture of the batteries since substantially complete filling of the separator with electrolyte should occur before further stages of battery manufacture are carried out.
  • alkaline battery separators have been made of non-woven materials formed from various types of fibers.
  • fibers which have been used include natural cellulose, polyolefins, polyesters, polyamides and polyvinyl alcohol. These various fibers have been found to suffer with a variety of disadvantages, natural cellulose fibers tending to have relatively poor stability in alkaline media such as battery electrolytes, and others having relatively poor wicking and/or absorptive properties. Battery separators have therefore frequently been made from natural cellulose fibers, often with other fibers included to improve the mechanical properties of the non-woven material. The non-woven materials used for prior art battery separators have been made by a variety of processes.
  • One such process for separators made from cellulose fibers is wet laying, which is essentially a paper-making process in which a slurry of randomly oriented natural cellulose fibers, optionally mixed with other fibers if such are desired in the final non-woven material, is dried.
  • bonding agents for example polyvinyl alcohol
  • fibers in the slurry can be used to bond the non-woven material, for example by heat activation.
  • a thermoplastic resin fiber in the material may be heat activated by passing the material through the nip between heated rollers.
  • EP-A-0572921 describes the production of battery separators by wet laying cellulose fibers obtained by spinning a solution of cellulose in an amine oxide into water. Such solvent-spun fibers have good resistance to the alkaline electrolyte in alkaline batteries compared with natural cellulose fibers. However, when they were wet laid, these fibers did not form a satisfactory non-woven material for a battery separator, apparently due to the high Young's modulus of the fibers when they are wet resulting from the high crystallinity of the cellulose fibers. In order to overcome this problem, it was proposed in EP-A- 0572921 to subject the solvent-spun fibers to beating to obtain a highly fibrilated product. Wet laying of these fibrilated fibers apparently facilitates the wet laying process to form a non-woven material which when used as a battery separator inhibits increases in the internal resistance of such batteries.
  • a non-woven material for use as a battery separator, the material comprising a dry laid web of solvent-spun cellulose fibers.
  • the term generically used for such fibers is "lyocell”.
  • the invention also extends to battery separators comprising such materials, and to batteries including such separators.
  • the invention may be viewed as providing the use of a non-woven material comprising a dry laid web of solvent-spun cellulose fibers as a battery separator.
  • the separator in such a battery is formed as a tube, positioned between the anode and cathode.
  • one end of the tube may be closed so as to enclose one end of the anode rod; the opposite end of the tube may also be substantially closed, provided that electrical connection is made between the anode and a terminal accessible from the exterior of the battery.
  • the dry laid lyocell fibers will in general be bonded subsequent to their having been laid.
  • Methods of bonding used hitherto in the art to produce dry laid non-woven materials can be used, for example hydroentanglement, the activation of thermally activatable fibers or the use of a bonding agent applied to the dry laid fibers, for example as a solution.
  • Non-woven materials in accordance with the present invention have shown particularly rapid wicking when treated with alkaline electrolyte used in alkaline batteries, combined with high levels of electrolyte absorption and resistance to degradation by the electrolyte compared with hitherto proposed non-woven materials for battery separators. Materials in accordance with the invention have also shown particularly high strength for their weight.
  • the dry laying of the lyocell fibers can be effected using known methods, it generally being preferred to effect such laying using a carding technique, for example as described in GB 2151667-A.
  • a carding technique for example as described in GB 2151667-A.
  • Such carding techniques tend to effect orientation of the carded fibers, with more of the fibers aligned in substantially one direction than in the direction perpendicular thereto.
  • the ratio of numbers of fibers aligned generally in one direction to those aligned generally perpendicular thereto is from 2:1 to 10:1, and more preferably from 3:1 to 6:1.
  • the relative numbers of fibers in these directions are preferably selected to provide a balance between increased wicking (with increased alignment) and increased strength perpendicular to the direction in which most of the fibers are aligned.
  • the thickness of lyocell fibers used in accordance with the present invention can be from 0.5 to 10 decitex, and is preferably from 1 to 3 decitex.
  • the staple length of lyocell fibers used in accordance with the present invention is preferably from 15 to 60 mm, and more preferably from 30 to 50 mm. This contrasts with the solvent-spun fibers of EP-A-0572921 where the fibers used in the wet laid process are specifically exemplified as being 2 mm long.
  • Non-woven materials in accordance with the present invention can include fibers other than lyocell fibers, for example fibers which can be used to effect thermal bonding of the non-woven material and/or to increase the resistance of the non-woven material to alkaline electrolyte solutions.
  • fibers which can be used include fibers of polyolefins, polyvinyl alcohol, nylons or acrylics.
  • the amount of such other fibers which can be included will usually depend upon the effect which incl- ding them is intended to achieve, but it should not be su. as to have a significantly adverse effect on the ability of the material to function in a battery separator.
  • the dry laid fibers can be bonded using a bonding agent.
  • a preferred bonding agent is polyvinyl alcohol, preferably in an amount of from 5 to 50 percent by weight, and more preferably 15 to 30 percent by weight, based on the dry weight of the bonded material.
  • the dry laid fibers can be bonded by hydroentanglement, for example as described in EP-A-014790 .
  • Non-woven materials in accordance with the present invention can be made to a variety of weights per unit area, for example depending on the particular end use. However, typical weights can be 15 to 80 g/m 2 , for example 30 to 50 g/m 2 .
  • non-woven materials in accordance with the present invention will be used in conjunction with a membrane, for example of regenerated cellulose film.
  • the lyocell fibers used to produce materials in accordance with the present invention can be used in non-fibrilated or fibrilated form.
  • Non-fibrilated fibers are generally preferred since when used in accordance with the present invention they have given good results without the necessity for the extra step of fibrilation of the fibers.
  • Lyocell fibers of 1.7 decitex and 38 mm length (available from Courtaulds pic, Coventry, United Kingdom, under the trade mark "Tencel") were dry blended with polyvinyl alcohol fibers of 1.4 decitex and 35 mm length at a weight ratio of 60 parts of cellulose fibers to 40 parts of polyvinyl alcohol fibers in a conventional blending and opening process.
  • the fibers were formed by dry carding into a dry laid web with a weight of 32 g/m 2 .
  • the ratio of numbers of fibers in the machine and transverse directions in the dry laid web was 5:1.
  • the fibers in the web were then bonded together using an approximately 6% w/v solution of polyvinyl alcohol in water, by first spraying the web with the solution and then drying the web over heated rollers.
  • the weight per unit area and the thickness of the resulting fabric were measured, and the values obtained are shown in the accompanying Table.
  • the wicking of the fabric was assessed as follows:- A strip of the fabric 14 cm long and 2.5 cm wide (machine direction lengthwise) was clamped so that one end of the fabric was just in a 32 percent by weight aqueous solution of potassium hydroxide. The wicking height was measured as the minimum distance travelled by the solution up the fabric in five minutes. The result is shown in the accompany Table.
  • the absorbency of the fabric was assessed as follows:- A square or circle of the fabric having an area of 100 cm 2 was weighed and then placed in a 32 percent by weight solution of potassium hydroxide for one minute. The fabric sample was then removed and allowed to drain for 30 seconds, after which it was reweighed. The increase in weight of the fabric was then expressed as an increase in g/m 2 . The result is shown in the accompanying Table.
  • a fabric was produced using the dry laying and bonding method of Example 1 but replacing the lyocell fibers with natural cellulose fibers of substantially the same size as the lyocell fibers.
  • test data established for this fabric using the conditions in Example 1 are given in the accompanying Table.
  • a commercially available wet laid, polyvinyl alcohol bonded cellulose fiber battery separator fabric was subjected to wicking and absorbency tests described in Example 1. Since the cellulose fibers of the fabric had been wet laid, the fibers were essentially randomly oriented. The sample for the wicking test was therefore taken at random from the fabric.
  • the fabric in accordance with the present invention showed better wicking and higher absorbency than either of the comparison fabrics, and that was for a fabric with a lower weight per unit area than either of the comparison fabrics.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cell Separators (AREA)

Abstract

L'invention concerne un non-tissé constitué d'un voile, obtenu à sec, de fibres de cellulose filées avec solvant, du type 'lyocell'. Ce matériau offre une bonne résistance, un effet de mèche satisfaisant et une bonne stabilité en milieu alcalin; il est destiné particulièrement à servir de séparateur pour accumulateur alcalin. Dans les modes de réalisation préférés, ce matériau est lié, par exemple par jet d'eau, par activation des fibres à chaud, ou par utilisation d'un agent adhésif. Est également décrit un mode de réalisation préféré d'un séparateur d'accumulateur, constitué d'un matériau non tissé du type décrit ci-dessus et d'une membrane de cellulose régénérée.
PCT/GB1995/002474 1994-10-21 1995-10-20 Non-tisses pour separateurs d'accumulateurs comprenant un voile de fibres de cellulose filees avec solvant Ceased WO1996013071A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU36709/95A AU3670995A (en) 1994-10-21 1995-10-20 Non-woven fabrics for battery separators comprising a web of solvent-spun cellulose fibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9421261A GB9421261D0 (en) 1994-10-21 1994-10-21 Non-woven fabrics
GB9421261.0 1994-10-21

Publications (1)

Publication Number Publication Date
WO1996013071A1 true WO1996013071A1 (fr) 1996-05-02

Family

ID=10763204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/002474 Ceased WO1996013071A1 (fr) 1994-10-21 1995-10-20 Non-tisses pour separateurs d'accumulateurs comprenant un voile de fibres de cellulose filees avec solvant

Country Status (3)

Country Link
AU (1) AU3670995A (fr)
GB (1) GB9421261D0 (fr)
WO (1) WO1996013071A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998058103A1 (fr) * 1997-06-17 1998-12-23 Lenzing Aktiengesellschaft Procede de production de fibres de cellulose
WO1998058102A1 (fr) * 1997-06-17 1998-12-23 Lenzing Aktiengesellschaft Microfibre de cellulose
EP1031653A1 (fr) * 1999-02-25 2000-08-30 Italplastic Industriale S.p.A Non-tissé
US6258488B1 (en) * 1996-04-02 2001-07-10 Tencel Limited Battery separators
AT412728B (de) * 2002-09-03 2005-06-27 Chemiefaser Lenzing Ag Cellulosefaser
US7067444B2 (en) * 1996-08-23 2006-06-27 Weyerhaeuser Company Lyocell nonwoven fabric
WO2007124522A1 (fr) * 2006-04-28 2007-11-08 Lenzing Aktiengesellschaft Produit non-tisse obtenu par fusion-soufflage
WO2007124521A1 (fr) * 2006-04-28 2007-11-08 Lenzing Aktiengesellschaft Produits hydro-enchevêtrés comprenant des fibres de cellulose
US8030231B2 (en) 2004-07-09 2011-10-04 Johnson & Johnson Gmbh Absorbent personal care and/or cleansing product for cosmetic and/or dermatological applications comprising at least one absorbent sheet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925164A (ja) * 1982-07-30 1984-02-09 Kanai Hiroyuki アルカリ電池用セパレ−タ
EP0503811A1 (fr) * 1991-03-07 1992-09-16 The Dexter Corporation Séparateur de batterie
EP0521444A1 (fr) * 1991-07-02 1993-01-07 Japan Vilene Company, Ltd. Voile de fibres, méthode et appareil pour sa production
EP0572921A1 (fr) * 1992-06-01 1993-12-08 Kuraray Co., Ltd. Séparateur pour les piles alcalines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925164A (ja) * 1982-07-30 1984-02-09 Kanai Hiroyuki アルカリ電池用セパレ−タ
EP0503811A1 (fr) * 1991-03-07 1992-09-16 The Dexter Corporation Séparateur de batterie
EP0521444A1 (fr) * 1991-07-02 1993-01-07 Japan Vilene Company, Ltd. Voile de fibres, méthode et appareil pour sa production
EP0572921A1 (fr) * 1992-06-01 1993-12-08 Kuraray Co., Ltd. Séparateur pour les piles alcalines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 111 (E - 246) 24 May 1984 (1984-05-24) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6258488B1 (en) * 1996-04-02 2001-07-10 Tencel Limited Battery separators
US7067444B2 (en) * 1996-08-23 2006-06-27 Weyerhaeuser Company Lyocell nonwoven fabric
CN1111617C (zh) * 1997-06-17 2003-06-18 连津格股份公司 制造纤维素纤维的方法
US6241927B1 (en) 1997-06-17 2001-06-05 Lenzing Aktiengesellschaft Method of producing cellulose fibers
AU740994B2 (en) * 1997-06-17 2001-11-22 Lenzing Aktiengesellschaft Method for producing cellulose fibres
WO1998058103A1 (fr) * 1997-06-17 1998-12-23 Lenzing Aktiengesellschaft Procede de production de fibres de cellulose
WO1998058102A1 (fr) * 1997-06-17 1998-12-23 Lenzing Aktiengesellschaft Microfibre de cellulose
EP1031653A1 (fr) * 1999-02-25 2000-08-30 Italplastic Industriale S.p.A Non-tissé
AT412728B (de) * 2002-09-03 2005-06-27 Chemiefaser Lenzing Ag Cellulosefaser
US8030231B2 (en) 2004-07-09 2011-10-04 Johnson & Johnson Gmbh Absorbent personal care and/or cleansing product for cosmetic and/or dermatological applications comprising at least one absorbent sheet
WO2007124522A1 (fr) * 2006-04-28 2007-11-08 Lenzing Aktiengesellschaft Produit non-tisse obtenu par fusion-soufflage
WO2007124521A1 (fr) * 2006-04-28 2007-11-08 Lenzing Aktiengesellschaft Produits hydro-enchevêtrés comprenant des fibres de cellulose
US8282877B2 (en) 2006-04-28 2012-10-09 Lenzing Aktiengesellschaft Process of making a hydroentangled product from cellulose fibers
CN103173938A (zh) * 2006-04-28 2013-06-26 连津格股份公司 包含纤维素纤维的水刺产品
EP2957667A1 (fr) * 2006-04-28 2015-12-23 Lenzing Aktiengesellschaft Produit hydrolié comprenant des fibres de cellulose

Also Published As

Publication number Publication date
AU3670995A (en) 1996-05-15
GB9421261D0 (en) 1994-12-07

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