EP3212846B1 - Fibres de lyocell à fibrillation rapide et leur utilisation - Google Patents

Fibres de lyocell à fibrillation rapide et leur utilisation Download PDF

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Publication number
EP3212846B1
EP3212846B1 EP15744462.1A EP15744462A EP3212846B1 EP 3212846 B1 EP3212846 B1 EP 3212846B1 EP 15744462 A EP15744462 A EP 15744462A EP 3212846 B1 EP3212846 B1 EP 3212846B1
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EP
European Patent Office
Prior art keywords
fibers
lyocell
lyocell fibers
fibrillation
fibrillated
Prior art date
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Active
Application number
EP15744462.1A
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German (de)
English (en)
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EP3212846A1 (fr
Inventor
Johann Männer
Rudolf Aigner
Jim GANNON
Matt Riley
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Lenzing AG
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Lenzing AG
Chemiefaser Lenzing AG
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Priority to PL15744462T priority Critical patent/PL3212846T3/pl
Publication of EP3212846A1 publication Critical patent/EP3212846A1/fr
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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H13/00Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02Synthetic cellulose fibres
    • D21H13/08Synthetic cellulose fibres from regenerated cellulose
    • 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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
    • D04H1/46Non-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
    • D04H1/492Non-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
    • B08B1/143
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/42Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/425Cellulose series
    • D04H1/4258Regenerated cellulose series
    • 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838Ultrafine fibres, e.g. microfibres
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02Natural fibres, other than mineral fibres
    • D06M2101/04Vegetal fibres
    • D06M2101/06Vegetal fibres cellulosic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/35Abrasion, pilling or fibrillation resistance

Definitions

  • the present invention relates to fibrillated lyocell fibers having a fibrillation quotient Q of 20 or greater and having a content of microfibers with a fineness of less than 14 mesh and a diameter of less than 2 microns at least 50%, and their use for producing a wipe, the pulp and 5 to 20% by weight of fibrillated lyocell fibers.
  • the US 6042769 discloses a method of increasing the fibrillation tendency of lyocell fibers by a treatment which reduces the degree of polymerization of the cellulose by at least 200 units.
  • the fiber thus obtained should be used mainly in nonwovens and paper.
  • the treatment is preferably carried out with a bleaching agent, in particular with sodium hypochlorite.
  • the treatment with an acid, preferably a mineral acid such as hydrochloric acid, sulfuric acid or nitric acid is possible.
  • this process has not been implemented commercially until today.
  • regenerated cellulose fibers such as viscose and lyocell in nonwovens
  • refiners which are known from papermaking
  • lyocell fibers are fibrillated and used as cellulose microfibers in admixture with paper pulp in so-called wet-laying processes (also referred to in the art as "wet-laid processes")
  • wet-laid processes also referred to in the art as "wet-laid processes”.
  • wipes or wipes and paper structures for, for example, tissues US 8187422 in that the incorporation of fibrillated lyocell microfibers into paper pulp enables the properties of disposable cellulosic wipes to be optimized accordingly.
  • the cleaning behavior should be correspondingly improved by this admixture.
  • the optimized property profile should be improved by an increased opacity (light scattering) and porosity, distinguished by the improvement of the soft grip. The higher porosity is said to result in a higher absorbency of water and oil, resulting in improved cleaning performance.
  • the US 8187422 does not describe exactly how the lyocell microfibers used are made. It merely indicates that conventional lyocell staple fibers, as used, for example, for the production of textiles, can be fibrillated in a disk refiner or similar aggregate in an aqueous medium at low solids content.
  • the according to the US 8187422 used lyocell microfibers were purchased in an already fibrillated state from a supplier. They have a fibrillation degree of CSF ⁇ 175ml and a diameter of ⁇ 2 ⁇ m. 40% of the fibers should have a fineness of finer than 14mesh.
  • the in the US 8187422 Disposable wipes disclosed contain between 25 and 75% of the Lyocell microfibers so prepared.
  • the object of this prior art was to provide fibers for use in wipes, which can be fibrillated for a cost-effective and on the other hand in a lower proportion in wipes nor the same mechanical properties of the wipes, such as high strength allow.
  • fibrillated lyocell fibers which are characterized in that they have a Fibrillation quotient Q of 20 or greater and their content of microfibers with a fineness of less than 14 mesh and a diameter of less than 2 microns is at least 50%.
  • Fibrillated lyocell fibers in the context of the present invention does not mean a total amount of completely identical fibers, but a mixture of fibers of basically the same nature, wherein in the mixture fibers of different fineness (measured in mesh ) and different diameters.
  • t CSF200 is the time (in minutes) required in the CSF check to achieve a CSF value of 200.
  • Q the time (in minutes) required in the CSF check to achieve a CSF value of 200.
  • the larger Q is, the less time is needed at constant fibrillation conditions to achieve the same degree of fibrillation.
  • a Q value of up to 400 can be achieved.
  • Another object of the present invention is a wipe containing pulp and 5 to 20% by weight of fibrillated lyocell fibers and wherein the fibrillated lyocell fibers have a fibrillation quotient Q of 20 or greater.
  • the pulp is a paper pulp.
  • the fast-fibrillating lyocell fibers could be prepared by acid treatment of conventional lyocell fibers.
  • This acid treatment can be carried out according to the invention by using a fiber cable extruded from spinnerets in a known manner with a single fiber titer of for example between 1.0 and 6.0 dtex with dilute mineral acid, for example hydrochloric, sulfuric or nitric acid, with a concentration for example, between 0.5 and 5% at room temperature in a container at a liquor ratio of for example, impregnated 1:10 and then pressed to a certain residual moisture of, for example, 200%.
  • the impregnated fiber cable is then exposed to water vapor at overpressure in a suitable device, then washed free of acid and dried.
  • the fiber cable is cut to a staple length of 5 mm and subjected to the CSF test (Canadian Standard Freeness according to TAPPI Standard T227 om-94).
  • the fiber cable is cut to produce the wipes according to the invention in staple fibers suitable cut length, for example 4 to 6 mm.
  • the fibrillation can then take place in a comminution unit customary in the paper industry, for example a grinding unit, a refiner, a disintegrator or a hydrapulper. It is carried out there until the desired degree of fibrillation is reached.
  • the effect of acid treatment and consequent reduction of CSF can be influenced by varying the treatment parameters. For longer treatment duration in the overpressure steam, the same effect can be achieved with lower acid concentrations and vice versa. Similarly, with lower or higher steaming temperatures, the CSF value can be affected.
  • the fast-fibrillating lyocell fibers according to the invention can be used according to the invention for the production of a wide variety of products, such as wipes, in particular disposable wipes, papers, in particular filter papers and papers for technical applications, such as batteries.
  • wipes in particular disposable wipes
  • filters papers and papers for technical applications, such as batteries.
  • wipes according to the invention can be prepared by basically known processes from the fibers and pulp according to the invention.
  • the solidification takes place by water needling.
  • the present invention also relates to the use of the inventive fibers described above for producing a wipe, wherein the wipe comprises pulp and 5 to 20 wt .-% fibrillated lyocell fibers.
  • the pulp is preferably a paper pulp.
  • Fast fibrillating lyocell fibers are produced as follows: A lyocell fiber strand having a single fiber titer of 1.7 dtex is impregnated with dilute sulfuric acid at room temperature and a liquor ratio of 1:10 and pressed to about 200% humidity. The impregnated fiber strand is subjected to steam in a laboratory damper for about 10 minutes under pressure, then washed free of acid with water and dried. The dry fiber strand is cut to 5mm staple length and subjected to the CSF test.
  • Fig. 1 shows the decrease of the CSF value with increasing comminution time in the measuring device. It can be clearly seen that the acid-treated fibers fibrillate much faster than the untreated. For the commercial production of fibrillated lyocell fibers, this means a considerably lower expenditure of time and energy than when using untreated lyocell fibers.
  • Table 1 shows the t CSF200 values determined for the various samples and the Q values calculated from them. Tab. 1: sample t CSF200 [min] Q [min -1 ] A 15.5 12.9 B 3.5 57.1
  • Example 2 The same fiber samples were compared as in Example 1: Each 1% aqueous fiber suspensions of both fiber samples A and B were ground in a laboratory refiner of the type Andritz R1L at a power of 500W, both the energy consumption in kWh / to and the duration to reach a degree of milling of CSF 200 (Canadian Standard of Freeness Test in accordance with TAPPI Standard T227 om-94). The fibrillating lyocell fiber could be processed in less than 80% of the energy consumption compared to the standard lyocell fiber in only 50% of the milling time (see Table 2). Tab. 2: sample Grinding time [min] Energy consumption [kWh / to] A 5 400 B 2.5 65
  • Fig. 2 shows an SEM image of the leaf from the suspension of sample B.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Artificial Filaments (AREA)

Claims (7)

  1. Lingette contenant de la pâte et entre 5 et 20 % en masse de fibres lyocell fibrillées, caractérisée en ce que les fibres lyocell fibrillées présentent un quotient de fibrillation Q égal ou supérieur à 20.
  2. Lingettes selon la revendication 1, la pâte étant de la pâte à papier.
  3. Fibres lyocell fibrillées caractérisées en ce qu'elles présentent un quotient de fibrillation Q égal ou supérieur à 20 et que leur teneur en microfibres ayant une finesse inférieure à 14 mesh et un diamètre inférieur à 2 µm est au moins égale à 50 %.
  4. Utilisation des fibres selon la revendication 3 pour la fabrication d'une lingette, caractérisée en ce que la lingette contient de la pâte et entre 5 et 20 % en masse de fibres lyocell fibrillées.
  5. Utilisation selon la revendication 4, la pâte étant de la pâte à papier.
  6. Utilisation des fibres lyocell fibrillées selon la revendication 5 obtenues selon un procédé par voie humide.
  7. Utilisation selon la revendication 6 sous forme de mélange de fibres lyocell fibrillées et de pâte à papier avec une part de fibres lyocell comprise entre 5 et 20 % en masse.
EP15744462.1A 2014-10-29 2015-05-29 Fibres de lyocell à fibrillation rapide et leur utilisation Active EP3212846B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15744462T PL3212846T3 (pl) 2014-10-29 2015-05-29 Szybko fibrylujące włókna lyocell i ich zastosowanie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA793/2014A AT515693B1 (de) 2014-10-29 2014-10-29 Schnell fibrillierende Lyocellfasern und deren Verwendung
PCT/AT2015/000082 WO2016065377A1 (fr) 2014-10-29 2015-05-29 Fibres de lyocell à fibrillation rapide et leur utilisation

Publications (2)

Publication Number Publication Date
EP3212846A1 EP3212846A1 (fr) 2017-09-06
EP3212846B1 true EP3212846B1 (fr) 2019-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15744462.1A Active EP3212846B1 (fr) 2014-10-29 2015-05-29 Fibres de lyocell à fibrillation rapide et leur utilisation

Country Status (10)

Country Link
US (1) US10570565B2 (fr)
EP (1) EP3212846B1 (fr)
JP (1) JP6931786B2 (fr)
KR (1) KR102444057B1 (fr)
CN (1) CN107109735B (fr)
AT (1) AT515693B1 (fr)
ES (1) ES2733229T3 (fr)
PL (1) PL3212846T3 (fr)
TR (1) TR201909640T4 (fr)
WO (1) WO2016065377A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515693B1 (de) * 2014-10-29 2015-11-15 Chemiefaser Lenzing Ag Schnell fibrillierende Lyocellfasern und deren Verwendung
AT517303B1 (de) 2015-06-11 2018-02-15 Chemiefaser Lenzing Ag Verwendung cellulosischer Fasern zur Herstellung eines Vliesstoffes
EP3536832A1 (fr) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Fibre lyocell présentant des propriétés de désintégration améliorées
EP3536851A1 (fr) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Fibre lyocell présentant une tendance accrue à la fibrillation
EP3536829A1 (fr) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Fibre lyocell présentant des propriétés de type viscose
EP3604652B1 (fr) * 2018-07-31 2023-09-06 Lenzing Aktiengesellschaft Non-tissé, utilisation du non-tissé et chiffon, toile de séchage ainsi que masque pour le visage comportant du non-tissé
CN111139596B (zh) * 2018-11-02 2023-04-11 东丽纤维研究所(中国)有限公司 一种水刺无纺布
EP4092185A4 (fr) * 2020-01-14 2023-01-25 Asahi Kasei Kabushiki Kaisha Fibre de cellulose régénérée fibrillée et tissu utilisant ladite fibre
CN114717749A (zh) * 2022-04-19 2022-07-08 东华大学 含有毛刷结构微/纳米纤维的水刺非织造材料及其制备方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1395757A (en) 1972-04-07 1975-05-29 Wiggins Teape Research Dev Ltd Apparatus for producing a foamed fibre dispersion
GB9412501D0 (en) 1994-06-22 1994-08-10 Courtaulds Fibres Holdings Ltd Manufacture of fibre
GB9412500D0 (en) * 1994-06-22 1994-08-10 Courtaulds Fibres Holdings Ltd Fibre manufacture
US6235392B1 (en) * 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6602994B1 (en) 1999-02-10 2003-08-05 Hercules Incorporated Derivatized microfibrillar polysaccharide
US6797113B2 (en) * 1999-02-24 2004-09-28 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps method
JP3989269B2 (ja) 2002-03-25 2007-10-10 三菱製紙株式会社 嵩高紙
JP4976675B2 (ja) * 2005-03-16 2012-07-18 三菱製紙株式会社 ワイパー用不織布
US7718036B2 (en) * 2006-03-21 2010-05-18 Georgia Pacific Consumer Products Lp Absorbent sheet having regenerated cellulose microfiber network
US8187422B2 (en) 2006-03-21 2012-05-29 Georgia-Pacific Consumer Products Lp Disposable cellulosic wiper
AT505787B1 (de) * 2007-09-18 2009-06-15 Chemiefaser Lenzing Ag Lyocellfaser
US9845575B2 (en) * 2009-05-14 2017-12-19 International Paper Company Fibrillated blend of lyocell low DP pulp
US9222222B2 (en) * 2010-08-20 2015-12-29 Weyerhaeuser Nr Company Dried highly fibrillated cellulose fiber
US9027765B2 (en) * 2010-12-17 2015-05-12 Hollingsworth & Vose Company Filter media with fibrillated fibers
US9267240B2 (en) * 2011-07-28 2016-02-23 Georgia-Pacific Products LP High softness, high durability bath tissue incorporating high lignin eucalyptus fiber
FI124235B (en) 2012-04-26 2014-05-15 Stora Enso Oyj Fiber-based paper or cardboard web and method of manufacturing the same
US9212435B2 (en) 2012-06-29 2015-12-15 Weyerhaeuser NRCompany Pulp and fibrillated fiber composite
AT514136A1 (de) * 2013-04-05 2014-10-15 Lenzing Akiengesellschaft Polysaccharidfaser mit erhöhtem Fibrillationsvermögen und Verfahren zu ihrer Herstellung
CN103243579A (zh) * 2013-05-22 2013-08-14 海安县联发弘佳纺织有限公司 一种天丝面料的原纤化处理方法
CN103966891B (zh) * 2014-04-23 2017-01-04 华南理工大学 一种纤维浆粕的制备方法及其制备的纤维浆粕
AT515693B1 (de) * 2014-10-29 2015-11-15 Chemiefaser Lenzing Ag Schnell fibrillierende Lyocellfasern und deren Verwendung
AT517303B1 (de) * 2015-06-11 2018-02-15 Chemiefaser Lenzing Ag Verwendung cellulosischer Fasern zur Herstellung eines Vliesstoffes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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JP2017534390A (ja) 2017-11-24
CN107109735A (zh) 2017-08-29
PL3212846T3 (pl) 2019-10-31
KR20170077158A (ko) 2017-07-05
ES2733229T3 (es) 2019-11-28
JP6931786B2 (ja) 2021-09-08
WO2016065377A1 (fr) 2016-05-06
EP3212846A1 (fr) 2017-09-06
TR201909640T4 (tr) 2019-07-22
AT515693A4 (de) 2015-11-15
AT515693B1 (de) 2015-11-15
US10570565B2 (en) 2020-02-25
US20170241079A1 (en) 2017-08-24
CN107109735B (zh) 2022-09-02
KR102444057B1 (ko) 2022-09-15

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