EP2173931A1 - Fibrefill fibre having improved opening characteristics, production and use thereof - Google Patents

Fibrefill fibre having improved opening characteristics, production and use thereof

Info

Publication number
EP2173931A1
EP2173931A1 EP08756846A EP08756846A EP2173931A1 EP 2173931 A1 EP2173931 A1 EP 2173931A1 EP 08756846 A EP08756846 A EP 08756846A EP 08756846 A EP08756846 A EP 08756846A EP 2173931 A1 EP2173931 A1 EP 2173931A1
Authority
EP
European Patent Office
Prior art keywords
fiber
fibers
sheets
lubricant
full
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.)
Granted
Application number
EP08756846A
Other languages
German (de)
French (fr)
Other versions
EP2173931B1 (en
Inventor
Johann Männer
Susanne Jary
Denitza Ivanoff
Peter Dobson
Markus Hager
Heinrich Firgo
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
Chemiefaser 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, Chemiefaser Lenzing AG filed Critical Lenzing AG
Priority to PL08756846T priority Critical patent/PL2173931T3/en
Publication of EP2173931A1 publication Critical patent/EP2173931A1/en
Application granted granted Critical
Publication of EP2173931B1 publication Critical patent/EP2173931B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G1/00—Loose filling materials for upholstery
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/02—Preparation of spinning solutions
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/04—Dry spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/26—Formation of staple fibres
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/06—Bed linen
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2904—Staple length fiber
    • Y10T428/2907—Staple length fiber with coating or impregnation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y10T428/2924—Composite

Definitions

  • the present invention relates to a method for producing a cellulosic fiber, in particular a lyocell fiber, which is particularly suitable for mixing with feathers, in particular down, due to its improved opening behavior, such a full fiber and the use of this full-fiber in blends, as well as bedding and Clothing filled with these blends
  • Short fibers from melt-extruded, synthetic polymers such as polyester, polylactic acid and others are known and widely used as full fibers in combination with down and feathers
  • lyocell fibers in particular those produced by BISFA (The International Bureau for the Standardization of Man Made Fibers) with the generic name Lyocell, have long been known and have been produced on a large scale for years.
  • the solvent used is a tertiary amine oxide , in particular N-Methylmorphol ⁇ n-N-Ox ⁇ d (NMMO) also used as solvents are ionic liquids
  • the solution of the cellulose is usually extruded in this process by means of a mold and thereby formed
  • the shaped solution passes, for example, in a so-called dry-wet spinning process via an air gap in a falling bath, which is obtained by precipitation of the solution, the moldings
  • the molded article is washed and optionally dried for further treatment steps.
  • a process for producing lyocell fibers is described, for example, in US Pat. No. 4,246,221
  • lyocell fibers as full fibers in the form of nonwovens in quilts and as cushions in pillows.
  • crimped lyocell staple fibers for nonwovens and balls are described as suitable full-fiber types.
  • this publication does not give any information on the fiber titer on the cut length of the fibers or on surface treatments WO 99/16705 does not address the opening behavior of the fibers and the resulting problems
  • WO 2004/070093 A2 lyocell fibers with a denier of 6.7 dtex and a cut length of 11 mm are proposed as mixing partners for feathers and down. The mixture of lyocell and feathers or down is done in a wet mixing process. The opening behavior of the lyocell fibers and associated problems, WO 2004/070093 A2 contains no evidence.
  • lyocell fibers in the titer range of 0.7 to 8.0 dtex and a cut length of 5 to 100 mm are used in WO 2004/023943 for use as filling material for disposable quilts made from pure lyocell or else from mixtures with other, preferably biodegradable Synthetic fibers exist, described in detail. Lyocell as a blending partner for feathers and down is only suggested incidentally, without pointing to the associated processing problems or even revealing a solution to such problems.
  • WO 2005/007945 discloses the use of lyocell staple fibers with a value of the ratio of denier (in dtex) to cut length (in mm) of 0.10 or more as filler fiber for blankets, upholstery, cushions, mattresses or fleece for upholstered furniture known. The use of such fibers for mixing with fibers of other Fasergattungen or with down and feathers is described there.
  • processors of down and feathers do not generally have the usual additional opening equipment otherwise used in textile manufacturing.
  • the synthetic fibers such as polyester, which are widely used as compound fibers, are easy to open, so that no aggressive fibers are used to process such fibers
  • Opening units must be used.
  • the majority of the down and feathers is processed in the dry state, with aggregates fans and blowpipes for Opening, mixing and transport are used If now the lyocell fibers known from the above-mentioned method are used as the mixing partner, then there is insufficient opening of the fibers due to the strong pressing in the bale. Larger structures of unintentionally consolidated fibers can pass into the subsequent processing machines and their sensitive parts destroy Homogeneous mixing with down and feathers is not possible with these fibers WO 2005/007945 is also not concerned with the problem of poor opening possibilities of a commercially pressed fiber bale with devices present in down processors
  • the object of the present invention Compared to the known prior art, the object of the present invention, then, to provide a fiber available, which can be opened without the use of customary in the textile industry O Stammsaggregate and then processed to a homogeneous mixture with down and feathers
  • Another object was then to provide a method by which a fiber can be produced which can be opened without the use of the usual in the textile industry O Stammsaggregate and then processed to a homogeneous mixture with down and feathers
  • Fibers with a single fiber titer which is clearly less than 0 7 dtex are too fine for the intended use as a full fiber because they, for example, have no sufficient bulk. Fibers with a single fiber titer of substantially more than 6.0 dtex are too thick and stiff and therefore do not give a soft Filling more as required by a product with down and / or feathers from the consumer
  • the stuffer box crimping was carried out according to the method described in WO 95/24520. Surprisingly, it has been found that these fibers have better opening properties than lyocell fibers which were produced by means of the abovementioned nonwoven aftertreatment. In particular, it was surprising that a fiber crimped in a stuffer box could be opened much better than a fiber crimped in a fleece aftertreatment. '
  • a fiber crimped in a stuffer box differs significantly from a fiber crimped in a fleece aftertreatment.
  • permanent crimping points are present in a fiber crimped in the nonwoven according to EP 797 696, which are clearly visible in the polarizing microscope. While such nonwoven crimping is advantageous for various textile and other applications, it has the disadvantage of poorer opening performance in the field of the present invention
  • the full-fiber according to the invention preferably has a number of sheets of 18 to 50 sheets / 10 cm, more preferably a number of sheets of 18 to 40 sheets / 10 cm.
  • a lower number of sheets results in too low bulkiness of the full fiber, while higher than the mentioned numbers of sheets in turn worsen the opening behavior, since more entanglements can occur between the individual fibers
  • It also preferably has a finishing layer of from 0.3 to 3.0% by weight, based on the total mass of the refined fiber.
  • a finishing layer of from 0.3 to 3.0% by weight, based on the total mass of the refined fiber.
  • aminofunctionalized lubricant is particularly preferred as the finishing agent for this fiber.
  • the amino groups in the lubricant contribute substantially to the adjustment of the slip behavior which is important for the filling fiber according to the invention, which makes the good opening behavior and the necessary bulk possible.
  • the type of functionalization has greater influence on the sliding behavior than the Basic substance of the avivage
  • silicone oils or lubricants based on fatty acids is preferred for the present invention, however, a silicone oil, since this is the permanence is to be understood here as the ability to remain on the fiber as long as possible, for example even after several washings
  • inventive full fibers with a staple fiber length between 6 and 20 mm have the best properties too large staple fiber lengths lead to more entanglements and thus to a deterioration of the opening behavior
  • the fiber cable crimped in the stuffer box is cut in the stretched state, ie under tension by commercially available cutting machines in which the cutting length is previously fixed
  • the full fibers according to the invention preferably have a blowbox ratio of between 4 and 15, more preferably between 6 and 14
  • the further object is achieved by a process for producing a cellulosic full-fiber with a single fiber titer of 0.7 to 6.0 dtex, preferably 0.8 to 3.0 dtex consisting of the steps
  • the cable is crimped in a stuffer box to a sheet count of at least 18 sheets / 10cm and then cut and the cut filler fiber has a blowbox height ratio of between 4 and 15, preferably between 6 and 14.
  • the lubricant used in the process according to the invention is preferably a silicone oil.
  • Decisive for the opening and further processing properties of the filling fiber is also its finishing layer. It should be between 0.3 and 3.0% by weight, based on the total weight of the refined fiber.
  • the fibers are preferably spun in a dry-wet spinning process, for example one of the known lyocell processes with aqueous amine oxides or ionic liquids as solvent for the cellulose.
  • the object is also achieved by the use of a cellulosic filler fiber with a Einzelmaschinetiter from 0.7 to 6.0 dtex, preferably 0.8 to 3.0 dtex, which generates a crimping in a stuffer box with a sheet count of at least 18 sheets / 10cm as well as a finishing layer, as filling material in bedding and clothing.
  • the cellulosic filling fiber used for this purpose has a blowbox height ratio between 4 and 15, preferably between 6 and 14.
  • the number of sheets is determined by the method described in WO 95/24520.
  • blowbox test The opening properties that are practically relevant for use as a filler fiber in combination with down and feathers can be tested on a laboratory scale using the method described in the following, the so-called blowbox test:
  • the blowbox is a rectangular metal container which is open at the bottom and at the top with one air-permeable sieve is covered.
  • the dimensions of the blowbox are 20 x 15 x 20 cm (length x width x height, ie 6 l volume).
  • the determination of the opening properties is carried out as follows, the average value of two tests always being used to determine reliable results
  • blowbox high ratio is the quotient of blowbox height and output height
  • Figure 4 shows, for example, fibers with the grade 9 for the opening good Examples:
  • Lyocell fibers with a single fiber titer of 1.7 dtex were formed by the known method by extrusion of a solution of cellulose in aqueous amine oxide, coagulated in a dry-wet spinning process, and cut, washed, dried, and in a nonwoven aftertreatment according to the prior art with a silicone oil so that they had a Avivageauflage between 0.8 and 1, 2 wt.% Had.
  • a single value can not be specified for this parameter, because even with careful application of the finish, the circulation in the nonwoven fabric varies within certain limits.
  • the fibers were baled on a commercial scale Autefa baler on a production scale. Samples were then taken according to the method described above.
  • Lyocell fibers with a single fiber titer of 1.7 dtex were formed by a known method by extrusion of a solution of cellulose in aqueous amine oxide, coagulated in a dry-wet-spun and washed in a KabeJ ⁇ acbbehandJung, dried, crimped in a stuffer box crimp and with an amino-functionalized silicone oil Type Wacker finish CT96E, so that they had a lubricant deposit between 0.7 and 0.9% by weight. Only then was the cable cut. The fibers were baled on a commercial scale Autefa baler on a production scale. Samples were then taken according to the method described above. The fibers produced according to the method of the invention show a much better opening behavior than those of the prior art.

Abstract

The present invention relates to a process for producing a cellulosic fibre, in particular a lyocell fibre which has improved opening characteristics and therefore is particularly useful for blending with feathers, in particular with down, to such a fibrefill fibre and to the use of this fibrefill fibre in mixtures for bedding and clothing.

Description

Patentanmeldung Patent application
Fullfaser mit verbessertem Öffnungsverhalten, Verfahren zu deren Herstellung und derenFull fiber with improved opening behavior, process for their preparation and their
Verwendunguse
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer cellulosischen Faser, insbesondere einer Lyocell-Faser, die aufgrund ihres verbesserten Offnungsverhaltens besonders gut zur Mischung mit Federn, insbesondere mit Daunen geeignet ist, eine solche Fullfaser sowie die Verwendung dieser Fullfaser in Mischungen, sowie Bettwaren und Bekleidung, die mit diesen Mischungen gefüllt sindThe present invention relates to a method for producing a cellulosic fiber, in particular a lyocell fiber, which is particularly suitable for mixing with feathers, in particular down, due to its improved opening behavior, such a full fiber and the use of this full-fiber in blends, as well as bedding and Clothing filled with these blends
Als Fullfasern in Mischung mit Daunen und Federn sind Kurzschnittfasern aus schmelzextrudierten, synthetischen Polymeren wie Polyester, Polymilchsaure und andere bekannt und weithin eingesetztShort fibers from melt-extruded, synthetic polymers such as polyester, polylactic acid and others are known and widely used as full fibers in combination with down and feathers
Cellulosische Fasern, insbesondere die von der BISFA (The International Bureau for the Standardisation of Man Made Fibres) mit dem Gattungsnamen Lyocell bezeichneten hsungsmitteigesponnenen Fasern sind seit langem bekannt und werden seit Jahren in großtechnischem Maßstab hergestellt Bei der Herstellung von Lyocellfasern wird als Losungsmittel ein tertiäres Aminoxid, insbesondere N-Methylmorpholιn-N-Oxιd (NMMO) verwendet Ebenfalls geeignet als Losungsmittel sind ionische FlüssigkeitenCellulosic fibers, in particular those produced by BISFA (The International Bureau for the Standardization of Man Made Fibers) with the generic name Lyocell, have long been known and have been produced on a large scale for years. In the production of lyocell fibers, the solvent used is a tertiary amine oxide , in particular N-Methylmorpholιn-N-Oxιd (NMMO) also used as solvents are ionic liquids
Die Losung der Cellulose wird in diesen Verfahren üblicherweise mittels eines Formwerkzeugs extrudiert und dabei ausgeformt Die ausgeformte Losung gelangt beispielsweise in einem sogenannten Trocken-Naß-Spinnverfahren über einen Luftspalt in ein Fallbad, wo durch Ausfallen der Losung der Formkorper erhalten wird Der Formkorper wird gewaschen und ggf nach weiteren Behandlungsschπtten getrocknet Ein Verfahren zur Herstellung von Lyocellfasern ist z B in der US 4 246,221 beschriebenThe solution of the cellulose is usually extruded in this process by means of a mold and thereby formed The shaped solution passes, for example, in a so-called dry-wet spinning process via an air gap in a falling bath, which is obtained by precipitation of the solution, the moldings The molded article is washed and optionally dried for further treatment steps. A process for producing lyocell fibers is described, for example, in US Pat. No. 4,246,221
Es wurde auch bereits vorgeschlagen, Lyocellfasern als Fullfasern in Form von Vliesen in Steppdecken und als Ballchen in Kissen zu verwenden So werden beispielsweise in WO 99/16705 als geeignete Fullfasertypen gekräuselte Lyocell-Stapelfasern für Vliese und Ballchen beschrieben Diese Publikation macht jedoch keinerlei Angaben zum Fasertiter zur Schnittlange der Fasern oder zu Oberflachenbehandlungen Auch auf das Öffnungsverhalten der Fasern und daraus resultierende Probleme geht die WO 99/16705 nicht ein In der WO 2004/070093 A2 werden Lyocellfasern mit einem Titer von 6,7 dtex und einer Schnittlänge von 11 mm als Mischungspartner für Federn und Daunen vorgeschlagen. Die Mischung von Lyocell und Federn bzw. Daunen erfolgt in einem Naßmischverfahren. Zum Öffnungsverhalten der Lyocellfasern und damit verbundene Probleme enthält die WO 2004/070093 A2 keinerlei Hinweise.It has also been proposed to use lyocell fibers as full fibers in the form of nonwovens in quilts and as cushions in pillows. For example, in WO 99/16705 crimped lyocell staple fibers for nonwovens and balls are described as suitable full-fiber types. However, this publication does not give any information on the fiber titer on the cut length of the fibers or on surface treatments WO 99/16705 does not address the opening behavior of the fibers and the resulting problems In WO 2004/070093 A2 lyocell fibers with a denier of 6.7 dtex and a cut length of 11 mm are proposed as mixing partners for feathers and down. The mixture of lyocell and feathers or down is done in a wet mixing process. The opening behavior of the lyocell fibers and associated problems, WO 2004/070093 A2 contains no evidence.
In der WO 2004/023943 werden darüber hinaus Lyocellfasern im Titerbereich von 0,7 bis 8,0 dtex und einer Schnittlänge von 5 bis 100 mm zur Verwendung als Füllmaterial für Einwegsteppdecken, die aus reinem Lyocell oder auch aus Mischungen mit anderen, vorzugsweise biologisch abbaubaren Kunstfasern bestehen, ausführlich beschrieben. Lyocell als Mischungspartner für Federn und Daunen wird nur beiläufig vorgeschlagen, ohne näher auf die damit verbundenen Verarbeitungsprobleme hinzuweisen oder gar eine Lösung für solche Probleme zu offenbaren.In addition, lyocell fibers in the titer range of 0.7 to 8.0 dtex and a cut length of 5 to 100 mm are used in WO 2004/023943 for use as filling material for disposable quilts made from pure lyocell or else from mixtures with other, preferably biodegradable Synthetic fibers exist, described in detail. Lyocell as a blending partner for feathers and down is only suggested incidentally, without pointing to the associated processing problems or even revealing a solution to such problems.
Aus der WO 2005/007945 ist die Verwendung von Lyocell-Stapelfasem mit einer Wertzahl des Verhältnisses von Titer (in dtex) zu Schnittlänge (in mm) von 0,10 oder mehr als Füllfaser für Decken, Polster, Kissen, Matratzen oder Vlieses für Polstermöbel bekannt. Auch die Verwendung solcher Fasern zur Mischung mit Fasern anderer Fasergattungen oder mit Daunen und Federn ist dort beschrieben.WO 2005/007945 discloses the use of lyocell staple fibers with a value of the ratio of denier (in dtex) to cut length (in mm) of 0.10 or more as filler fiber for blankets, upholstery, cushions, mattresses or fleece for upholstered furniture known. The use of such fibers for mixing with fibers of other Fasergattungen or with down and feathers is described there.
Die Herstellung der aus diesem Stand der Technik bekannten Fasern für Daunenmischungen erfolgt, z. B. gemäß EP 797 696, indem die gesponnenen Filamente direkt nach dem Spinnen im nassen Zustand zu Stapelfasern geschnitten und anschließend als Vlies einer kontinuierlichen Nachbehandlung zugeführt werden. Nach einer Wäsche zur Entfernung von restlichem NMMO und Avivierung werden die Fasern getrocknet und in einer Presse zu Ballen verpackt, wobei Drücke von bis zu 220 bar erreicht werden. Diese Art der Faserherstellung, -nachbehandlung und -Verpackung entspricht der von ähnlichen Fasern, die später für Anwendungen in Garnen oder Nonwovens eingesetzt werden. Eine geringere Verpressung ist aus logistischen und wirtschaftlichen Gründen nicht möglich.The production of known from this prior art fibers for down blends is done, for. B. according to EP 797 696 by the spun filaments are cut directly after spinning in the wet state to staple fibers and then fed as nonwoven a continuous aftertreatment. After washing to remove residual NMMO and finishing, the fibers are dried and packed into bales in a press to achieve pressures of up to 220 bar. This type of fiber preparation, post-treatment and packaging is similar to that of similar fibers used later in yarn or nonwovens applications. A lower compression is not possible for logistical and economic reasons.
Die Verarbeiter von Daunen und Federn verfügen jedoch im Allgemeinen nicht über die sonst in der Textilherstellung üblichen zusätzlichen Öffnungsaggregate. Die als Mischungsfasern weithin eingesetzten synthetischen Fasern wie Polyester lassen sich leicht öffnen, so dass für die Verarbeitung solcher Fasern keine aggressivenHowever, processors of down and feathers do not generally have the usual additional opening equipment otherwise used in textile manufacturing. The synthetic fibers such as polyester, which are widely used as compound fibers, are easy to open, so that no aggressive fibers are used to process such fibers
Öffnungsaggregate verwendet werden müssen. Der Großteil der Daunen und Federn wird im Trockenzustand verarbeitet, wobei als Aggregate Ventilatoren und Blasleitungen zum Öffnen, Mischen und Transportieren verwendet werden Werden jetzt die nach dem oben genannten Verfahren bekannten Lyocellfasern als Mischungspartner eingesetzt, so kommt es aufgrund der starken Verpressung im Ballen zu einer mangelhaften Öffnung der Fasern Dabei können größere Gebilde aus ungewollt verfestigten Fasern in die darauf folgenden Verarbeitungsmaschinen gelangen und deren empfindliche Teile zerstören Eine homogene Mischung mit Daunen und Federn ist mit diesen Fasern nicht möglich Auch die WO 2005/007945 geht nicht auf das Problem der mangelhaften Offnungsmoglichkeiten eines in handelsüblicher Weise gepressten Faserballens mit den bei Daunenverarbeitern vorhandenen Geraten einOpening units must be used. The majority of the down and feathers is processed in the dry state, with aggregates fans and blowpipes for Opening, mixing and transport are used If now the lyocell fibers known from the above-mentioned method are used as the mixing partner, then there is insufficient opening of the fibers due to the strong pressing in the bale. Larger structures of unintentionally consolidated fibers can pass into the subsequent processing machines and their sensitive parts destroy Homogeneous mixing with down and feathers is not possible with these fibers WO 2005/007945 is also not concerned with the problem of poor opening possibilities of a commercially pressed fiber bale with devices present in down processors
Aufgabetask
Gegenüber dem bekannten Stand der Technik bestand die Aufgabe der vorliegenden Erfindung daher dann, eine Faser zur Verfugung zu stellen, die sich auch ohne die Anwendung der in der Textilindustrie üblichen Offnungsaggregate offnen und anschließend zu einer homogenen Mischung mit Daunen und Federn verarbeiten lasstCompared to the known prior art, the object of the present invention, then, to provide a fiber available, which can be opened without the use of customary in the textile industry Offnungsaggregate and then processed to a homogeneous mixture with down and feathers
Eine weitere Aufgabe bestand dann, ein Verfahren zur Verfugung zu stellen, mit dem eine Faser hergestellt werden kann, die sich auch ohne die Anwendung der in der Textilindustrie üblichen Offnungsaggregate offnen und anschließend zu einer homogenen Mischung mit Daunen und Federn verarbeiten lasstAnother object was then to provide a method by which a fiber can be produced which can be opened without the use of the usual in the textile industry Offnungsaggregate and then processed to a homogeneous mixture with down and feathers
LosungSolution
Diese Aufgabe konnte durch eine cellulosische Fullfaser mit einem Einzelfasertiter von 0,7 bis 6,0 dtex bevorzugt 0,8 bis 3,0 dtex, gelost werden, die eine in einer Stauchkammer erzeugte Kräuselung mit einer Bogenzahl von mindestens 18 Bogen/10cm sowie eine Avivageauflage aufweist Diese Fasern weisen auch nach einer starken Verpressung in einem handelsüblichen Faserballen ein hervorragendes Offnungsverhalten mit einfachen Aggregaten auf was sich in dem praxisnahen sogenannten Blowbox-Test feststellen lasstThis task could be solved by a cellulosic full-fiber with a Einzelfasertiter of 0.7 to 6.0 dtex preferably 0.8 to 3.0 dtex, which produced a crimping in a stuffer box with a sheet count of at least 18 sheets / 10cm and a Having a lubricant coating Even after strong compression in a commercially available fiber bale, these fibers have excellent opening behavior with simple aggregates, as can be seen in the practical so-called blowbox test
Fasern mit einem Einzelfasertiter der deutlich geringer als 0 7 dtex ist sind für die beabsichtigte Verwendung als Fullfaser zu fein da sie beispielsweise keine genugende Bauschfahigkeit aufweisen Fasern mit einem Einzelfasertiter von wesentlich mehr als 6,0 dtex sind zu dick und steif und ergeben daher keine weiche Füllung mehr wie sie von einem Produkt mit Daunen und/oder Federn vom Verbraucher gefordert wird Die Stauchkammerkräuselung erfolgte nach dem in WO 95/24520 beschriebenen Verfahren. Überraschenderweise wurde gefunden, dass diese Fasern bessere Öffnungseigenschaften aufweisen als Lyocellfasern, die mittels der oben genannten Vliesnachbehandlung produziert wurden. Insbesondere war überraschend, dass sich eine in einer Stauchkammer gekräuselte Faser wesentlich besser öffnen ließ als eine in einer Vliesnachbehandlung gekräuselte Faser. 'Fibers with a single fiber titer which is clearly less than 0 7 dtex are too fine for the intended use as a full fiber because they, for example, have no sufficient bulk. Fibers with a single fiber titer of substantially more than 6.0 dtex are too thick and stiff and therefore do not give a soft Filling more as required by a product with down and / or feathers from the consumer The stuffer box crimping was carried out according to the method described in WO 95/24520. Surprisingly, it has been found that these fibers have better opening properties than lyocell fibers which were produced by means of the abovementioned nonwoven aftertreatment. In particular, it was surprising that a fiber crimped in a stuffer box could be opened much better than a fiber crimped in a fleece aftertreatment. '
An dieser Stelle muss ausdrücklich betont werden, dass sich eine in einer Stauchkammer gekräuselte Faser deutlich von einer in einer Vliesnachbehandlung gekräuselten Faser unterscheidet. Beispielsweise sind in einer gemäß der EP 797 696 im Vlies gekräuselten Faser dauerhafte Quetschstellen vorhanden, die im Polarisationsmikroskop deutlich sichtbar sind. Während eine solche Vlieskräuselung für verschiedene textile und sonstige Anwendungen vorteilhaft ist, hat sie für das Gebiet der vorliegenden Erfindung den Nachteil eines schlechteren OffnungsverhaltensIt should be emphasized at this point that a fiber crimped in a stuffer box differs significantly from a fiber crimped in a fleece aftertreatment. For example, permanent crimping points are present in a fiber crimped in the nonwoven according to EP 797 696, which are clearly visible in the polarizing microscope. While such nonwoven crimping is advantageous for various textile and other applications, it has the disadvantage of poorer opening performance in the field of the present invention
Die erfindungsgemaße Fullfaser weist bevorzugt eine Bogenzahl von 18 bis 50 Bögen/10cm, besonders bevorzugt eine Bogenzahl von 18 bis 40 Bogen/10cm auf. Eine geringere Bogenzahl ergibt eine zu geringe Bauschigkeit der Fullfaser, wahrend höhere als die genannten Bogenzahlen das Offnungsverhalten wiederum verschlechtern, da mehr Verhakungen zwischen den einzelnen Fasern entstehen könnenThe full-fiber according to the invention preferably has a number of sheets of 18 to 50 sheets / 10 cm, more preferably a number of sheets of 18 to 40 sheets / 10 cm. A lower number of sheets results in too low bulkiness of the full fiber, while higher than the mentioned numbers of sheets in turn worsen the opening behavior, since more entanglements can occur between the individual fibers
Sie weist außerdem bevorzugt eine Avivageauflage von 0,3 bis 3,0 Gew %, bezogen auf die Gesamtmasse der avivierten Faser auf Wahrend geringere Avivageauflagen zu einem schlechteren Gleitverhalten und damit zu einem schlechteren Offnungsverhalten fuhren, sind höhere Avivageauflagen zum einen aufgrund des höheren Chemikalienverbrauchs teurer, hinterlassen einen zu feuchten bzw schmierigen Griff der Fasern und verschlechtern ebenfalls das Offnungs- und WeiterverarbeitungsverhaltenIt also preferably has a finishing layer of from 0.3 to 3.0% by weight, based on the total mass of the refined fiber. On the contrary, lower lubricating conditions lead to poorer sliding behavior and thus poorer opening behavior, higher finishing requirements are more expensive on the one hand due to the higher consumption of chemicals Leave too wet or greasy feel of the fibers and also worsen the opening and processing behavior
Als Avivage für diese Fullfaser ist eine aminofunktionalisierte Avivage besonders bevorzugt Die Aminogruppen in der Avivage tragen wesentlich zur Einstellung des für die erfindungsgemaße Füllfaser wichtigen Gleitverhaltens bei, das das gute Offnungsverhalten und den notwendigen Bausch ermöglicht Die Art der Funktionalisierung hat größeren Emfluss auf das Gleitverhalten als die Grundsubstanz der AvivageAn aminofunctionalized lubricant is particularly preferred as the finishing agent for this fiber. The amino groups in the lubricant contribute substantially to the adjustment of the slip behavior which is important for the filling fiber according to the invention, which makes the good opening behavior and the necessary bulk possible. The type of functionalization has greater influence on the sliding behavior than the Basic substance of the avivage
Als Grundsubstanz der Avivage kommen alle hierfür bekannten chemischen Verbindungen in Frage, beispielsweise Silikonole oder Avivagen auf Basis von Fettsauren Bevorzugt ist für die vorliegende Erfindung jedoch ein Silikonol, da dieses die beste Permanenz aufweist Unter Permanenz soll hier die Fähigkeit verstanden werden, möglichst lange auf der Faser zu verbleiben, beispielsweise auch nach mehreren WaschvorgangenAs a basic substance of the coating all known chemical compounds in question, for example, silicone oils or lubricants based on fatty acids is preferred for the present invention, however, a silicone oil, since this is the permanence is to be understood here as the ability to remain on the fiber as long as possible, for example even after several washings
Großen Einfluss auf die gute Offnungs- und Verarbeitungsfahigkeit der erfindungsgemaßen Fullfaser hat die Stapelfaserlange, auch Schnittlange genannt Überraschenderweise wurde gefunden, dass erfindungsgemaße Fullfasern mit einer Stapelfaserlange zwischen 6 und 20 mm die besten Eigenschaften aufweisen Zu große Stapelfaserlangen fuhren zu mehr Verhakungen und damit zu einer Verschlechterung des Offnungsverhaltens Das in der Stauchkammer gekräuselte Faserkabel wird im gestreckten Zustand, d h unter Spannung durch handelsübliche Schneidmaschinen, in denen die Schnittlange zuvor fest eingestellt wird, geschnittenSurprisingly, it has been found that inventive full fibers with a staple fiber length between 6 and 20 mm have the best properties too large staple fiber lengths lead to more entanglements and thus to a deterioration of the opening behavior The fiber cable crimped in the stuffer box is cut in the stretched state, ie under tension by commercially available cutting machines in which the cutting length is previously fixed
Überraschenderweise hat sich herausgestellt, dass sich mit dem sogenannten Blowbox- Test ermitteln lasst , ob eine Faser für die Verwendung als Fullfaser mit einem guten Offnungsverhalten gut geeignet ist Dies ist von großer Bedeutung bei der Sicherung der Produktqualltat Ein schlechtes Offnungsverhalten fuhrt zu Reklamationen der Kunden, da diese, wie bereits oben beschrieben mit den bei ihnen vorhandenen Aggregaten die Faserballen gar nicht oder nur unzureichend offnen und daher gelieferte Fasern mit schlechtem Offnungsverhalten nicht verarbeiten können Schlecht geöffnete Fasern können auch zu Schaden an den empfindlichen Weiterverarbeitungsmaschinen der Fullfaserverarbeiter und damit zu Regressanspruchen gegenüber dem Faserhersteller fuhrenSurprisingly, it has been found that can be determined by the so-called blowbox test, whether a fiber for use as a full-fiber with a good opening behavior is well suited This is of great importance in securing the Produktqualltat A poor opening behavior leads to complaints from customers, Since these, as already described above with their existing aggregates, the fiber bales not or only insufficiently open and therefore can not handle delivered fibers with poor Offnungsverhalten Badly opened fibers can also damage the sensitive processing machines of Fullfaserverarbeiter and thus to recourse claims against the Fiber manufacturers drove
Je großer das Blowbox-Hohenverhaltnis ist, desto leichter lasst sich die Faser mit den bei Fullfaserverarbeitern üblicherweise vorhandenen Aggregaten offnen Bevorzugt weisen daher die erfindungsgemaßen Fullfasern ein Blowbox-Hohenverhaltnis zwischen 4 und 15, besonders bevorzugt zwischen 6 und 14 aufThe greater the blowbox ratio, the easier it is to open the fiber with the aggregates customarily used in full-fiber processors. Therefore, the full fibers according to the invention preferably have a blowbox ratio of between 4 and 15, more preferably between 6 and 14
Die weitere Aufgabe wird gelost durch ein Verfahren zur Herstellung einer cellulosischen Fullfaser mit einem Einzelfasertiter von 0,7 bis 6,0 dtex, bevorzugt 0,8 bis 3,0 dtex bestehend aus den SchrittenThe further object is achieved by a process for producing a cellulosic full-fiber with a single fiber titer of 0.7 to 6.0 dtex, preferably 0.8 to 3.0 dtex consisting of the steps
a Herstellung einer cellulosehaltigen Spinnlosunga Preparation of a Cellulose-containing Spinnlosung
b Verspinnen der Spinnlosung zu einem Faserkabel,b spinning the spun solution to a fiber cable,
c Kabelnachbehandlung mit Waschen, Trocknen, Krausein und Avivieren, wobei das Kabel in einer Stauchkammer zu einer Bogenzahl von mindestens 18 Bögen/10cm gekräuselt und anschließend geschnitten wird und die geschnittene Füllfaser ein Blowbox-Höhenverhältnis zwischen 4 und 15, bevorzugt zwischen 6 und 14 aufweist.c cable post-treatment with washing, drying, curling and finishing, wherein the cable is crimped in a stuffer box to a sheet count of at least 18 sheets / 10cm and then cut and the cut filler fiber has a blowbox height ratio of between 4 and 15, preferably between 6 and 14.
Im erfindungsgemäßen Verfahren wird bevorzugt eine aminofunktionalisierfe Avivage eingesetzt.In the process according to the invention, preference is given to using an aminofunctionalizing lubricant.
Die im erfindungsgemäßen Verfahren eingesetzte Avivage ist bevorzugt ein Silikonöl.The lubricant used in the process according to the invention is preferably a silicone oil.
Maßgeblich für die Öffnungs- und Weiterverarbeitungseigenschaften der Füllfaser ist auch deren Avivageauflage. Sie sollte zwischen 0,3 und 3,0 Gew.%, bezogen auf die Gesamtmasse der avivierten Faser betragen.Decisive for the opening and further processing properties of the filling fiber is also its finishing layer. It should be between 0.3 and 3.0% by weight, based on the total weight of the refined fiber.
Bevorzugt werden die Fasern in einem Trocken-Naß-Spinnverfahren, beispielsweise einem der bekannten Lyocell-Verfahren mit wässrigen Aminoxiden oder ionischen Flüssigkeiten als Lösungsmittel für die Cellulose, gesponnen.The fibers are preferably spun in a dry-wet spinning process, for example one of the known lyocell processes with aqueous amine oxides or ionic liquids as solvent for the cellulose.
Die Aufgabe wird auch gelöst durch die Verwendung einer cellulosischen Füllfaser mit einem Einzelfasertiter von 0,7 bis 6,0 dtex, bevorzugt 0,8 bis 3,0 dtex, die eine in einer Stauchkammer erzeugte Kräuselung mit einer Bogenzahl von mindestens 18 Bögen/10cm sowie eine Avivageauflage aufweist, als Füllmaterial in Bettwaren und Bekleidung.The object is also achieved by the use of a cellulosic filler fiber with a Einzelfasertiter from 0.7 to 6.0 dtex, preferably 0.8 to 3.0 dtex, which generates a crimping in a stuffer box with a sheet count of at least 18 sheets / 10cm as well as a finishing layer, as filling material in bedding and clothing.
Bevorzugt weist die hierfür verwendete cellulosische Füllfaser ein Blowbox- Höhenverhältnis zwischen 4 und 15, bevorzugt zwischen 6 und 14 auf.Preferably, the cellulosic filling fiber used for this purpose has a blowbox height ratio between 4 and 15, preferably between 6 and 14.
Sie kann in Mischung mit Daunen und/oder Federn oder auch in Mischung mit Polyester, Polymilchsäure und/oder Polypropylen eingesetzt werden. Auch der Einsatz in Mischung mit Naturfasern wie Kapok oder Pappelflaum ist möglich.It can be used in combination with down and / or feathers or also in a mixture with polyester, polylactic acid and / or polypropylene. The use in mixture with natural fibers such as kapok or poplar fluff is possible.
Bestimmung der Bogenzahl:Determination of the number of sheets:
Die Bogenzahl wird mit dem in WO 95/24520 beschriebenen Verfahren bestimmt.The number of sheets is determined by the method described in WO 95/24520.
Blowbox-Test:Blowbox test:
Die für die Verwendung als Füllfaser in Mischung mit Daunen und Federn praxisrelevanten Öffnungseigenschaften können im Labormaßstab mit der im Folgenden beschriebenen Methode, dem sogenannten Blowbox-Test geprüft werden: Die Blowbox ist ein rechteckiger Metallbehälter, der an der Unterseite offen und an der Oberseite mit einem luftdurchlässigen Sieb abgedeckt ist. Die Abmessungen der Blowbox betragen 20 x 15 x 20 cm (Länge x Breite x Höhe, d. h. 6 I Volumen). An der Oberfläche befindet sich ein luftdurchlässiges Metallsieb mit einer Maschengröße von ca. 0,8 mm. Durch das Sieb wird mittels einer Düse ein konstanter Luftstrahl eingebracht, der die Faser aufwirbelt Die überschüssige Luft entweicht ebenfalls durch das SiebThe opening properties that are practically relevant for use as a filler fiber in combination with down and feathers can be tested on a laboratory scale using the method described in the following, the so-called blowbox test: The blowbox is a rectangular metal container which is open at the bottom and at the top with one air-permeable sieve is covered. The dimensions of the blowbox are 20 x 15 x 20 cm (length x width x height, ie 6 l volume). On the surface there is an air-permeable metal screen with a mesh size of approx. 0.8 mm. Through the screen, a constant jet of air is introduced by means of a nozzle, which stirs up the fiber. The excess air also escapes through the screen
Die Ermittlung der Offnungseigenschaften wird folgendermaßen durchgeführt, wobei zur Ermittlung verlasslicher Ergebnisse stets der Mittelwert aus jeweils zwei Versuchen gebildet wirdThe determination of the opening properties is carried out as follows, the average value of two tests always being used to determine reliable results
Bestimmung der AusgangshoheDetermination of the initial height
5 g einer von Hand aus einem gepressten Ballen entnommenen, also nicht maschinell geöffneten Faser werden zunächst gemäß der BISFA-Vorschπften (BISFA-Booklet5 g of a manually extracted from a pressed bale, so not mechanically opened fiber are first according to the BISFA Vorschπften (BISFA booklet
„Testing methods viscose, modal, lyocell and acetate, staple fibres and tows", Ausgabe 2004) in der Standardatmosphare (20°C, 65% relative Luftfeuchte) konditioniert und danach behutsam in ein 3000 ml Becherglas mit einem Durchmesser von 14,5 cm übergeführt und die Fullhohe gemessen"Testing methods viscose, modal, lyocell and acetate, staple fibers and tows", 2004 edition) in the standard atmosphere (20 ° C, 65% relative humidity) conditioned and then gently into a 3000 ml beaker with a diameter of 14.5 cm transferred and measured the full height
Diese Fasern werden anschließend in die Blowbox gegeben Über eine Düse, deren Dusenkopf um 45° geneigt 6 cm vom rechten Rand entfernt in Richtung Blowboxmitte angesetzt wird (Abbildung 2), wird mit einem Querschnitt von 4mm im Abstand von 1 cm über dem Sieb Luft eingeblasen, wodurch die Fasern aufgewirbelt und geöffnet werden Die Druckluftdurchflussmenge wird auf 8,4 Nm3 /h eingestellt, der Dusenquerschnitt muss 4mm betragen Die Blaszeit pro Anwendung betragt 60 secThese fibers are then placed in the blow box via a nozzle whose nozzle head is tilted by 45 ° 6 cm from the right edge toward the middle of the blowbox (Figure 2), air is injected with a cross section of 4mm at a distance of 1 cm above the screen which causes the fibers to be whirled up and opened. The compressed air flow rate must be set to 8.4 Nm3 / h, the nozzle cross-section must be 4 mm. The blowing time per application is 60 sec
Berechnung der Blowbox-HoheCalculation of the blowbox height
Die zuvor mit der Blowbox geöffneten Fasern werden anschließend behutsam wieder in das 3000 ml Becherglas mit einem Durchmesser von 14,5 cm übergeführt und die Fullhohe erneut gemessen (Abbildung 3)The fibers previously opened with the blowbox are then gently transferred back into the 3000 ml beaker with a diameter of 14.5 cm and the full height is measured again (Figure 3).
Bestimmung des Blowbox-HohenverhaltnissesDetermination of the blowbox ratio
Das Blowbox-Hohenverhaltnis ist der Quotient aus Blowbox-Hohe und AusgangshoheThe blowbox high ratio is the quotient of blowbox height and output height
Zusatzlich wird die Offnungsgute der Fasern nach folgendem Notenschlüssel visuell beurteiltIn addition, the opening goodness of the fibers is visually assessed according to the following clef
Note 1 Keine ÖffnungGrade 1 No opening
Note 5 Die Hälfte der Fasern sind geöffnet Note 10 Alle Fasern sind geöffnetGrade 5 Half of the fibers are open. Grade 10 All fibers are open
Abbildung 4 zeigt beispielsweise Fasern mit der Note 9 für die Offnungsgute Beispiele:Figure 4 shows, for example, fibers with the grade 9 for the opening good Examples:
Beispiel 1 (Vergleich):Example 1 (comparison):
Lyocellfasern mit einem Einzelfasertiter von 1,7 dtex wurden nach dem bekannten Verfahren durch Extrusion einer Lösung von Cellulose in wässrigem Aminoxid geformt, in einem Trocken-Naß-Spinnverfahren koaguliert und in einer Vliesnachbehandlung, gemäß dem Stand der Technik geschnitten, gewaschen, getrocknet und und mit einem Silikonöl aviviert, so dass sie eine Avivageauflage zwischen 0,8 und 1 ,2 Gew.% hatten. Ein einzelner Wert lässt sich für diesen Parameter nicht angeben, da auch bei sorgfältiger Aufbringung der Avivage die Auflage im Faservlies innerhalb gewisser Grenzen schwankt. Die Fasern wurden in einer handelsüblichen Autefa-Ballenpresse im Produktionsmaßstab zu Ballen gepresst. Proben wurden anschließend gemäß der oben beschriebenen Methode genommen.Lyocell fibers with a single fiber titer of 1.7 dtex were formed by the known method by extrusion of a solution of cellulose in aqueous amine oxide, coagulated in a dry-wet spinning process, and cut, washed, dried, and in a nonwoven aftertreatment according to the prior art with a silicone oil so that they had a Avivageauflage between 0.8 and 1, 2 wt.% Had. A single value can not be specified for this parameter, because even with careful application of the finish, the circulation in the nonwoven fabric varies within certain limits. The fibers were baled on a commercial scale Autefa baler on a production scale. Samples were then taken according to the method described above.
Erfindungsgemäße Beispiele 2 und 3:Inventive Examples 2 and 3:
Lyocellfasern mit einem Einzelfasertiter von 1 ,7 dtex wurden nach einem bekannten Verfahren durch Extrusion einer Lösung von Cellulose in wässrigem Aminoxid geformt, in einem Trocken-Naß-Spinnverfabren koaguliert und in einer KabeJήacbbehandJung gewaschen, getrocknet, in einer Stauchkammerkräuselung gekräuselt und mit einem aminofunktionalisierten Silikonöl Type Wacker finish CT96E aviviert, so dass sie eine Avivageauflage zwischen 0,7 und 0,9 Gew.% hatten. Erst danach wurde das Kabel geschnitten. Die Fasern wurden in einer handelsüblichen Autefa-Ballenpresse im Produktionsmaßstab zu Ballen gepresst. Proben wurden anschließend gemäß der oben beschriebenen Methode genommen. Die gemäß dem erfindungsgemäßen Verfahren hergestellten Fasern zeigen ein wesentlich besseres Öffnungsverhalten als die aus dem Stand der Technik.Lyocell fibers with a single fiber titer of 1.7 dtex were formed by a known method by extrusion of a solution of cellulose in aqueous amine oxide, coagulated in a dry-wet-spun and washed in a KabeJήacbbehandJung, dried, crimped in a stuffer box crimp and with an amino-functionalized silicone oil Type Wacker finish CT96E, so that they had a lubricant deposit between 0.7 and 0.9% by weight. Only then was the cable cut. The fibers were baled on a commercial scale Autefa baler on a production scale. Samples were then taken according to the method described above. The fibers produced according to the method of the invention show a much better opening behavior than those of the prior art.

Claims

Patentansprüche: claims:
1. Cellulosische Füllfaser mit einem Einzelfasertiter von 0,7 bis 6,0 dtex, dadurch gekennzeichnet, dass sie eine in einer Stauchkammer erzeugte Kräuselung mit einer Bogenzahl von mindestens 18 Bögen/10cm sowie eine Avivageauflage aufweist.1. Cellulosic filling fiber with a Einzelfasertiter from 0.7 to 6.0 dtex, characterized in that it has a crimping generated in a stuffer box with a sheet count of at least 18 sheets / 10cm and a Avivageauflage.
2. Füllfaser gemäß Anspruch 1 , die eine Bogenzahl von 18 bis 50 Bögen/10cm, bevorzugt von 18 bis 40 Bögen/10cm aufweist2. filler fiber according to claim 1, which has a number of sheets of 18 to 50 sheets / 10cm, preferably from 18 to 40 sheets / 10cm
3. Fullfaser gemäß den Ansprüchen 1 oder 2, die eine Avivageauflage von 0,3 bis 3,0 Gew.%, bezogen auf die Gesamtmasse der avivierten Faser aufweist3. full fiber according to claims 1 or 2, which has a Avivageauflage of 0.3 to 3.0 wt.%, Based on the total mass of the refined fiber
4. Füllfaser gemäß den Ansprüchen 1 bis 3, wobei die Avivage eine aminofunktionalisierte Avivage ist4. filler fiber according to claims 1 to 3, wherein the lubricant is an amino-functionalized lubricant
5. Fullfaser gemäß den Ansprüchen 1 bis 4, wobei die Avivage ein Silikonöl ist5. full fiber according to claims 1 to 4, wherein the lubricant is a silicone oil
6 Füllfaser gemäß den Ansprüchen 1 bis 5, die eine Stapelfaserlange zwischen 6 und 20 mm aufweist6. Filler according to claims 1 to 5, which has a staple fiber length between 6 and 20 mm
7 Fullfaser gemäß den Ansprüchen 1 bis 6, die ein Blowbox-Hohenverhaltnis zwischen 4 und 15, bevorzugt zwischen 6 und 14 aufweist7 full-fiber according to claims 1 to 6, which has a blowbox high ratio between 4 and 15, preferably between 6 and 14
8 Verfahren zur Herstellung einer cellulosischen Füllfaser mit einem Einzelfasertiter von 0,7 bis 6,0 dtex, bestehend aus den Schritten8 Process for the preparation of a cellulosic filling fiber with a single fiber titer of 0.7 to 6.0 dtex, consisting of the steps
a Herstellung einer cellulosehaltigen Spiπnlosung,a preparation of a cellulosic spinel,
b Verspinnen der Spinnlosung zu einem Faserkabel,b spinning the spun solution to a fiber cable,
c Kabelnachbehandlung mit Waschen, Trocknen, Krausein und Avivieren,c cable post-treatment with washing, drying, curling and finishing,
dadurch gekennzeichnet, dass das Kabel in einer Stauchkammer zu einer Bogenzahl von mindestens 18 Bogen/10cm gekräuselt und anschließend geschnitten wird und die geschnittene Fullfaser ein Blowbox-Hohenverhaltnis zwischen 4 und 15, bevorzugt zwischen 6 und 14 aufweistcharacterized in that the cable is crimped in a stuffer box to a sheet count of at least 18 sheets / 10cm and then cut and the cut full fiber has a blow box high ratio between 4 and 15, preferably between 6 and 14
9 Verfahren gemäß Anspruch 8, wobei die Avivage eine aminofunktionalisierte Avivage istThe method of claim 8, wherein the lubricant is an amino-functionalized lubricant
10 Verfahren gemäß den Ansprüchen 8 oder 9, wobei die Avivage ein Silikonöl ist A method according to claims 8 or 9, wherein the lubricant is a silicone oil
11. Verfahren gemäß Anspruch 8, wobei die Faser mit einer Avivageauflage von 0,3 bis 3,0 Gew.%, bezogen auf die Gesamtmasse der avivierten Faser, versehen wird.11. The method according to claim 8, wherein the fiber is provided with an Avivageauflage of 0.3 to 3.0 wt.%, Based on the total mass of the refined fiber.
12. Verfahren gemäß Anspruch 8, wobei die Fasern in einem Trocken-Naß- Spinnverfahren gesponnen werden.12. The method according to claim 8, wherein the fibers are spun in a dry-wet spinning process.
13. Verwendung einer cellulosischen Füllfaser mit einem Einzelfasertiter von 0,7 bis 6,0 dtex, die eine in einer Stauchkammer erzeugte Kräuselung mit einer Bogenzahl von mindestens 18 Bögen/10cm sowie eine Avivageauflage aufweist, als Füllmaterial in Bettwaren und Bekleidung.13. Use of a cellulosic filling fiber with a Einzelfasertiter from 0.7 to 6.0 dtex, which has a crimp generated in a stuffer box with a sheet count of at least 18 sheets / 10cm and a Avivageauflage, as filler in bedding and clothing.
14. Verwendung einer cellulosischen Füllfaser gemäß Anspruch 13, wobei die14. Use of a cellulosic filling fiber according to claim 13, wherein the
Füllfaser ein Blowbox-Höhenverhältnis zwischen 4 und 15, bevorzugt zwischen 6 und 14 aufweist.Filler has a blowbox height ratio between 4 and 15, preferably between 6 and 14.
15. Verwendung einer cellulosischen Füllfaser gemäß Anspruch 13 in Mischung mit Daunen und/oder Federn.15. Use of a cellulosic filling fiber according to claim 13 in a mixture with down and / or feathers.
16. Verwendung einer ce((ulosischen Füllfaser gemäß Anspruch 13 in Mischung mit Fasern aus Polyester, Polymilchsäure, Polypropylen, Kapok und/oder Pappelflaum. 16. Use of a ce ((ulosischen filling fiber according to claim 13 in mixture with fibers of polyester, polylactic acid, polypropylene, kapok and / or poplar fluff.
EP08756846A 2007-07-11 2008-06-27 Fibrefill fibre having improved opening characteristics, production and use thereof Active EP2173931B1 (en)

Priority Applications (1)

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PL08756846T PL2173931T3 (en) 2007-07-11 2008-06-27 Fibrefill fibre having improved opening characteristics, production and use thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1082/2007A AT505511B1 (en) 2007-07-11 2007-07-11 FILLING FIBER WITH IMPROVED OPENING BEHAVIOR, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
PCT/AT2008/000237 WO2009006656A1 (en) 2007-07-11 2008-06-27 Fibrefill fibre having improved opening characteristics, production and use thereof

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EP2173931A1 true EP2173931A1 (en) 2010-04-14
EP2173931B1 EP2173931B1 (en) 2012-02-01

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US (1) US20100281662A1 (en)
EP (1) EP2173931B1 (en)
JP (1) JP2010532827A (en)
KR (1) KR101495620B1 (en)
CN (1) CN101743347B (en)
AT (2) AT505511B1 (en)
BR (1) BRPI0814221A2 (en)
DK (1) DK2173931T3 (en)
ES (1) ES2383290T3 (en)
PL (1) PL2173931T3 (en)
TW (1) TWI495768B (en)
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WO2009006656A1 (en) 2009-01-15
BRPI0814221A2 (en) 2015-01-06
ZA201000184B (en) 2011-03-30
KR101495620B1 (en) 2015-02-25
AT505511B1 (en) 2014-03-15
EP2173931B1 (en) 2012-02-01
JP2010532827A (en) 2010-10-14
PL2173931T3 (en) 2012-07-31
TWI495768B (en) 2015-08-11
KR20100031638A (en) 2010-03-23
AT505511A1 (en) 2009-01-15
CN101743347B (en) 2014-12-17
US20100281662A1 (en) 2010-11-11
CN101743347A (en) 2010-06-16
DK2173931T3 (en) 2012-05-07
ATE543929T1 (en) 2012-02-15
ES2383290T3 (en) 2012-06-20
TW200938668A (en) 2009-09-16

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