US20150247288A2 - Dispersible non-woven fabrics - Google Patents

Dispersible non-woven fabrics Download PDF

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Publication number
US20150247288A2
US20150247288A2 US14/356,519 US201214356519A US2015247288A2 US 20150247288 A2 US20150247288 A2 US 20150247288A2 US 201214356519 A US201214356519 A US 201214356519A US 2015247288 A2 US2015247288 A2 US 2015247288A2
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US
United States
Prior art keywords
fabric
nonwoven fabric
pulp
dispersible nonwoven
solvent spun
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.)
Abandoned
Application number
US14/356,519
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English (en)
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US20140318726A1 (en
Inventor
Geoffrey Williams Collins
Andrew Peter Slater
Shayda Rahbaran
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.)
Lenzing AG
Original Assignee
Lenzing AG
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 Lenzing AG filed Critical Lenzing AG
Assigned to LENZING AKTIENGESELLSCHAFT reassignment LENZING AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RAHBARAN, SHAYDA, SLATER, ANDREW PETER, COLLINS, Geoffrey Williams
Publication of US20140318726A1 publication Critical patent/US20140318726A1/en
Publication of US20150247288A2 publication Critical patent/US20150247288A2/en
Abandoned legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/731—Cellulose; Quaternized cellulose derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • 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
    • D04H1/4258—Regenerated 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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • D04H1/488—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 in combination with at least one other method of consolidation in combination with bonding agents
    • 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
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/10—General cosmetic use

Definitions

  • This invention is directed towards rapidly dispersible absorbent nonwoven fabrics and methods for making and using such products.
  • This invention is especially directed towards rapidly dispersible wet wipes that are flushable through a standard toilet system and disintegrate into easily dispersible fragments that biodegrade after disposal.
  • nonwoven textiles are defined with the terminology “nonwoven”.
  • nonwoven The definition of nonwoven is described in the norm ISO 9092:1988.
  • Absorbent nonwoven fabrics include materials such as dry wipes, wet wipes and cosmetic wipes and masks. They are also materials used in hygiene products like panty liners, sanitary napkins and incontinence products.
  • the nonwoven fabrics used in these applications should fulfil the requirements of European Pharmacopoeia.
  • Disposable absorbent wipes such as toilet wet wipes offer high levels of convenience, comfort and efficacy that are greatly appreciated by consumers.
  • General disposal methods used for waste materials such bin disposal for subsequent incineration or landfill are not convenient for the consumers, especially for using of toilet wet wipes.
  • One of the alternative disposal methods is flushing the wet wipes directly into a conventional toilet. Flushing the product in the toilet, dispersing it by mechanical forces and finally biodegrading the material in the sewage system is more convenient and discrete for the consumers.
  • the suitable material should maintain its structural integrity and strength for use, but also disintegrate readily when flushing into the toilet without causing any blockage in the pumping and drain systems.
  • Flushable wet wipes are known for example from U.S. Pat. No. 5,629,081 and EP 1 285 985 A1.
  • the object of the invention is to provide a dispersible nonwoven fabric with good tensile strength but which disintegrate readily when flushed.
  • a dispersible nonwoven fabric comprising pulp and solvent spun cellulosic fibers characterized in that the solvent spun cellulosic fibers are fibrillated.
  • FIG. 1 shows an unfibrillated Tencel by light microscope
  • FIG. 2 shows an exemplary fibrillated Tencel by light microscope
  • FIG. 3 shows an exemplary fibrillated Tencel by scanning electron microscope.
  • Especially suited as starting material for the fibrillated fibers are solvent spun short cut cellulosic fibers with a length of 2 to 20 mm, preferably 3 to 12 mm, most preferably 4 to 10 mm
  • the titer of the solvent spun short cut fibers is 0.9 to 6.7 dtex, preferably 1.3 to 1.7 dtex.
  • the solvent spun short cut fibers are present in the dispersible nonwoven fabric in an amount of 1 to 90 wt.-%, preferably 5 to 40 wt.-%, most preferably 10 to 30 wt.-% based on the fabric.
  • a preferred solvent spun short cut fiber is a lyocell fiber, produced according to the Aminoxide-process, which is known e.g. from U.S. Pat. No. 4,246,221 (McCorsley).
  • a suited solvent spun fiber is sold under the trade name “Tencel”.
  • the dispersible nonwoven fabric has a weight of 30 to 100 g/m2, preferred of 40 to 60 g/m2 and a thickness of 0.1 to 0.7 mm.
  • the dispersible nonwoven fabric may comprise a dispersing aid in an amount of 0.1 to 1% wt.-%, preferably 0.5 to 1 wt.-% based on the fabric.
  • a binder is present in an amount of 0.01 to 5 wt.-%, preferably 0.1 to 0.5 wt.-% based on the fabric, preferably in form of an acrylic resin or epichlorohydrin based resin, such as polyamide-polyamine-epichlorohydrin resins or polyamide-epichlorohydrin resins.
  • an acrylic resin or epichlorohydrin based resin such as polyamide-polyamine-epichlorohydrin resins or polyamide-epichlorohydrin resins.
  • Other examples for suited binders are polyethylenimine resins and aminoplast resins.
  • pulps are suited, especially softwood pulps, hardwood pulps or a pulp made from plants like abaca or bamboo.
  • the dispersible nonwoven fabric according to the invention has a wet tensile strength in machine direction of 2 to 20 N/5 cm, preferably 3 to 13 N/5 cm and most preferably 3 to 7 N/5 cm based on a basis weight of 60 g/m2 and in cross direction 1 to 10 N/5 cm, preferably 1 to 7 N/5 cm and most preferably 1 to 3 N/5 cm.
  • the wet tensile strength has been measured according to the EDANA Method WSP 110.4 (09) “Standard Test Method for Breaking Force and Elongation of Nonwoven Materials (Strip Method)”.
  • EDANA Guidance Document for Assessing the Flushability of Nonwoven Consumer Products.
  • This test is used to assess the dispersibility or physical breakup of a flushable product during its transport through household and municipal conveyance systems (e.g., sewer pipe, pumps and lift stations).
  • household and municipal conveyance systems e.g., sewer pipe, pumps and lift stations.
  • This test assesses the rate and extent of disintegration of a test material by turbulent water in a rotating tube. Results from this test are used to evaluate the compatibility of test materials with household and municipal wastewater conveyance systems.
  • the principle of the test method is that the rotation of the tube is used to simulate the physical forces acting to disintegrate a product during passage through household sewage pumps and municipal conveyance systems.
  • the product is placed in a clear plastic tube containing 700 ml of tap water or raw wastewater, which is rotated end-over-end. After a specified number of cycles or rotations, the contents in the tube are passed through a series of screens. The various size fractions retained on the screens are weighed, and the rate and extent of disintegration determined.
  • test material is disintegrating when at least 95% of the size fractions pass a 12 mm screen and the residue is less than 5%.
  • the invention also concerns a process for the production of a dispersible nonwoven fabric.
  • pulp is dispersed in water and a solvent spun fiber is dispersed in water, either separately or together as a mixture.
  • a dispersing aid such as CMC (Carboxymethyl cellulose) may be added to improve dispersion quality.
  • the dispersions are passed through a refiner either separately or are co-refined.
  • the refining energy is from 20 to 400 kWh/t, prefer 40 to 150 kWh/t.
  • a binder solution may be added to the slurry.
  • the slurries are mixed to form an intimate blend to form one slurry.
  • the slurry is then wet-laid, e.g. on a papermaking machine, to form a sheet.
  • the sheet then passes through a hydroentanglement process either on-line or as a separate off-line process to form a fabric.
  • FIG. 1 shows an unfibrillated Tencel (light microscope). Fibrillation or refining is a wet abrasion process that exposes and releases fibrils emerging from the surface region of the filaments. As refining progresses, more fibrils are released from the filaments and the diameter of the residual filaments decreases ( FIG. 2 : light microscope, FIG. 3 : scanning electron microscope).
  • the fabric is sliced into the appropriate format, folded and packed.
  • a treatment, preferably an impregnation, with a liquid or lotion can be carried out before packaging.
  • the pulp/Tencel blend was refined through 1 ⁇ disc refiner and 4 ⁇ conical refiners in series to levels of 40 kWh/t and 60 kWh/t.
  • Acrylic dry strength resin was added to the slurry at 1% (based on dry fiber weight). The fabrics were dispersible and the tensile strength of fabrics was improved (Table 2).
  • a blend of 80% woodpulp (Camfor pulp) with 20% Tencel short cut 1.7 dtex at 6 mm cut length was used to make wetlaid fabrics. Fibers were refined to 100 kWh/t, 1% CMC (based on dry fiber weight) as dispersing aid was added and also 0.5% epichlorhydrin based wet strength resin (based on dry fiber weight) was added to increase the wet strength (Table 2). The fabric was dispersible.
  • the fabric according to the invention can be used in dry wipes and wet wipes like toilette wipes, facial wipes, cosmetic wipes, baby wipes and sanitary wipes for cleaning and densification as well as in absorbent hygiene products such as panty liners, sanitary napkins and incontinence pads.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Mechanical Engineering (AREA)
  • Biomedical Technology (AREA)
  • Dermatology (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Artificial Filaments (AREA)
US14/356,519 2011-11-09 2014-05-06 Dispersible non-woven fabrics Abandoned US20150247288A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA1658/2011 2011-11-09
ATA1658/2011A AT512460B1 (de) 2011-11-09 2011-11-09 Dispergierbare nicht-gewebte Textilien
PCT/AT2012/000259 WO2013067557A1 (fr) 2011-11-09 2012-10-11 Textiles non tissés dispersibles

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2012/000259 A-371-Of-International WO2013067557A1 (fr) 2011-11-09 2012-10-11 Textiles non tissés dispersibles

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/348,019 Division US9873964B2 (en) 2011-11-09 2016-11-10 Dispersible non-woven fabrics

Publications (2)

Publication Number Publication Date
US20140318726A1 US20140318726A1 (en) 2014-10-30
US20150247288A2 true US20150247288A2 (en) 2015-09-03

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Family Applications (2)

Application Number Title Priority Date Filing Date
US14/356,519 Abandoned US20150247288A2 (en) 2011-11-09 2014-05-06 Dispersible non-woven fabrics
US15/348,019 Active US9873964B2 (en) 2011-11-09 2016-11-10 Dispersible non-woven fabrics

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/348,019 Active US9873964B2 (en) 2011-11-09 2016-11-10 Dispersible non-woven fabrics

Country Status (9)

Country Link
US (2) US20150247288A2 (fr)
EP (1) EP2776616B1 (fr)
JP (1) JP2015501885A (fr)
KR (1) KR101904528B1 (fr)
CN (1) CN104024509B (fr)
AT (1) AT512460B1 (fr)
ES (1) ES2716824T3 (fr)
TR (1) TR201900683T4 (fr)
WO (1) WO2013067557A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170073863A1 (en) * 2011-11-09 2017-03-16 Lenzing Ag Dispersible non-woven fabrics
WO2020151824A1 (fr) * 2019-01-24 2020-07-30 Twe Meulebeke Bvba Article antibactérien non tissé sec

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WO2013124475A1 (fr) * 2012-02-23 2013-08-29 Filtrona Filter Products Development Co. Pte. Ltd Filtre à fumée de tabac
US20170027392A1 (en) * 2014-04-08 2017-02-02 Sca Hygiene Products Ab Flushable hydroentangled moist wipe or hygiene tissue
CN104404815B (zh) * 2014-10-10 2016-04-20 南通大学 一种可冲散湿巾材料及其生产方法
JP6713929B2 (ja) * 2014-12-29 2020-06-24 クラレクラフレックス株式会社 繊維集合体およびそれを用いた液体吸収性シート状物、ならびに繊維集合体の製造方法
AT517303B1 (de) * 2015-06-11 2018-02-15 Chemiefaser Lenzing Ag Verwendung cellulosischer Fasern zur Herstellung eines Vliesstoffes
MX2017015258A (es) 2015-06-29 2018-02-19 Kimberly Clark Co Toallita humeda dispersable y metodo de fabricacion.
CN105463703B (zh) * 2015-12-25 2018-02-16 常熟市飞龙无纺机械有限公司 可冲散可降解混合纤维水剌无纺布及其制备方法
WO2017152082A1 (fr) 2016-03-04 2017-09-08 Georgia-Pacific Consumer Products Lp Lingette dispersible
WO2018088179A1 (fr) * 2016-11-09 2018-05-17 日本製紙パピリア株式会社 Feuille de dispersion d'eau
EP3550062A1 (fr) 2018-04-06 2019-10-09 Lenzing Aktiengesellschaft Bande non tissée fibreuse
FI20180084A1 (en) 2018-07-13 2020-01-14 Paptic Oy Water-dispersed composite structure and process for its preparation
DE102020122864A1 (de) * 2020-01-10 2021-07-15 Trützschler GmbH & Co Kommanditgesellschaft Anlage und Verfahren zur Herstellung eines ein- oder mehrlagigen Vlieses

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EP2776616A1 (fr) 2014-09-17
JP2015501885A (ja) 2015-01-19
CN104024509A (zh) 2014-09-03
CN104024509B (zh) 2017-09-05
AT512460A1 (de) 2013-08-15
TR201900683T4 (tr) 2019-02-21
KR101904528B1 (ko) 2018-10-04
WO2013067557A1 (fr) 2013-05-16
US9873964B2 (en) 2018-01-23
KR20140101349A (ko) 2014-08-19
EP2776616B1 (fr) 2018-12-26

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