EP2546395A1 - Regenerierte Cellulosefaser - Google Patents

Regenerierte Cellulosefaser Download PDF

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Publication number
EP2546395A1
EP2546395A1 EP20110174140 EP11174140A EP2546395A1 EP 2546395 A1 EP2546395 A1 EP 2546395A1 EP 20110174140 EP20110174140 EP 20110174140 EP 11174140 A EP11174140 A EP 11174140A EP 2546395 A1 EP2546395 A1 EP 2546395A1
Authority
EP
European Patent Office
Prior art keywords
fiber
fibers
length
legs
cellulose fiber
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.)
Withdrawn
Application number
EP20110174140
Other languages
German (de)
English (en)
French (fr)
Inventor
Ingo Bernt
Matthew North
Reinhold Roethenbacher
Walter Roggenstein
Roland Scholz
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.)
Kelheim Fibres GmbH
Original Assignee
Kelheim Fibres GmbH
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 Kelheim Fibres GmbH filed Critical Kelheim Fibres GmbH
Priority to EP20110174140 priority Critical patent/EP2546395A1/de
Priority to PCT/EP2012/062376 priority patent/WO2013010761A1/de
Priority to JP2014519487A priority patent/JP2014524987A/ja
Priority to US14/232,828 priority patent/US20140147616A1/en
Priority to KR20147000669A priority patent/KR20140037209A/ko
Priority to CN201280035135.0A priority patent/CN103649388A/zh
Priority to AU2012286157A priority patent/AU2012286157A1/en
Priority to EP12730931.8A priority patent/EP2732082A1/de
Priority to BR112014000826A priority patent/BR112014000826A2/pt
Priority to CA 2839234 priority patent/CA2839234A1/en
Publication of EP2546395A1 publication Critical patent/EP2546395A1/de
Withdrawn legal-status Critical Current

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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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • 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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • 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
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/2395—Nap type surface
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • 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.]

Definitions

  • the present invention relates to a regenerated cellulose fiber obtained by the viscose method.
  • fibers having a particularly high liquid storage capacity are desirable in order to allow the highest possible absorption capacity of the hygiene product.
  • Prior art fiber materials commonly used to make tampons are ordinary viscose fibers, so-called trilobal viscose fibers, and cotton.
  • the specific absorbent capacity of these fibers is about 4.0 g / g for cotton, 4.5 g / g for ordinary viscose, and 5.2 g / g for trilobal viscose fibers according to the so-called Syngina test described below.
  • the goal of the tampon manufacturer is to achieve a certain degree of absorption with a minimum of fiber material and costs.
  • TSS toxic shock syndrome
  • hollow fibers and collapsed hollow fibers are difficult to produce because of their high water retention capacity, which causes the fibers to swell greatly during washing and stick together due to the formation of hydrogen bonds during drying, rendering them fragile when dry when wet soapy and difficult to break up and process into a carded fabric.
  • the production of multi-legged viscose fibers was, for example, in the U.S. Patents 5,634,914 and 5,458,835 and in the EP-A1 0 301 874 described.
  • the process disclosed therein describes spinning a commonly used viscose, which may contain a certain amount of a modifier known in the art, through extrusion holes of multi-limbed, in particular trilobal, form into a conventional spin bath.
  • the essential feature of this method is that the shape of the multi-limbed extrusion holes in the spinneret is similar to the desired shape of the cross section of the filaments. According to the teachings of these documents, the geometry of the spinneret hole determines the shape of the fiber cross-section, and by a corresponding design of the extrusion holes a certain length-to-width ratio of the fiber cross-section can be obtained.
  • multi-legged fibers have increased absorbency compared to viscose fibers of the prior art, especially in tampons, and that such fibers must have at least 3 legs and each leg of these fibers Length-to-width ratio of at least 2: 1, most preferably from 3: 1 1 to 5: 1, must have.
  • a solid regenerated standard viscose fiber which has a cross section whose area is larger than the area by a factor of less than 2.50 times, preferably less than 2.40 times, more preferably less than 2.25 times of the largest equilateral triangle inscribed in this cross section and which has a subsequently defined Syngina absorbance of greater than 6.0 g / g fiber.
  • the WO 2004/005595 A describes a standard absorbent viscose fiber having an irregular lobed cross section.
  • Other viscose fibers with irregular cross section are in the US 4,129,679 and the GB-A 1,333,047 described.
  • the US 6,403,217B1 describes various nozzle configurations for the production of fibers with modified fiber cross sections by the melt spinning method. Melt spinning processes are fundamentally different from the wet-spinning process used in the viscose process.
  • the capillarity in the known from the prior art Y-fibers is relatively low.
  • the formation of a larger number but smaller cavities would be advantageous.
  • a regenerated cellulose fiber is provided according to the invention, the cross-section of which has an elongate, substantially flat section, and which is characterized in that at least one leg branches off from the elongated section, the length of which is at most 40%. the length of the elongated section is.
  • the object of the invention is also achieved by a fiber bundle which contains a multiplicity of cellulose fibers according to the invention.
  • a cellulosic fiber whose cross-section has a substantially flat, elongate section with at least one leg protruding therefrom can advantageously influence the pore size of products made from a plurality of such fibers compared to trilobal fibers.
  • the leg is preferably arranged at substantially right angles to the elongate portion.
  • Particularly preferred embodiments are those in which a plurality of branching legs are provided.
  • the legs can advantageously branch off from the elongated portion in both directions.
  • the total length of the branching legs does not exceed the length of the elongated portion.
  • At least a portion of the legs may have a length to width ratio of 2: 1 to 10: 1.
  • At least a part of the legs preferably all legs, can / have a smaller width than the width of the flat section.
  • the total curvature of the flat portion is preferably at most 120 °. Even with spiders through nozzles with a flat spinning opening, a certain curvature can result in the resulting flat fibers (or in the flat section provided according to the invention).
  • the curvature used here is the angle defined by the end points of the flat section and the point of the flat section furthest from the imaginary straight line through these end points.
  • the fiber titer of the fiber according to the invention can be from 1.3 dtex to 10 dtex.
  • the cellulose fiber of the present invention may be in the form of staple fiber, short fiber or filament tow.
  • the invention also relates to a fiber bundle which contains a plurality of regenerated multi-limbed cellulose fibers, wherein at least 10%, preferably at least 20%, particularly preferably at least 50% of the multi-limbed cellulose fibers are present in the form of a cellulose fiber according to the invention.
  • substantially all of the multibody cellulose fibers contained can also be present in the form of a cellulose fiber according to the invention.
  • fiber bundle is meant a plurality of fibers, e.g. Cell wool (a variety of staple fibers), a strand of continuous filaments or a bale of fibers.
  • substantially all of the multi-limbed cellulose fiber contained in the fiber bundle are present in the form of the cellulose fiber according to the invention or the cross-sections of the multi-limbed cellulose fibers contained in the fiber bundle are substantially the same.
  • the fiber bundle may comprise further fibers, e.g. non-multifilament cellulose fibers, but also fibers of other provenance, e.g. from other polymers.
  • the method of the invention may comprise the step of mixing the fibers made by the process with other fibers, e.g. conventional multi-limb fibers, non-multifilament fibers and / or fibers of other provenance, e.g. from other polymers.
  • other fibers e.g. conventional multi-limb fibers, non-multifilament fibers and / or fibers of other provenance, e.g. from other polymers.
  • the smaller angle between leg and slot-shaped portion is between 30 ° and 90 °, more preferably between 60 ° and 90 °.
  • the inventive method is preferably designed such that the spinneret has a plurality of openings, wherein all openings have a substantially same same shape. This will e.g. in a fiber bundle, which consists of fibers according to the invention, the preferred embodiment that all fibers have substantially the same cross-section achieved.
  • the invention also relates to the use of the regenerated cellulose fiber or fiber bundle according to the invention in absorbent products, Sanitary articles, in particular tampons, incontinence products, sanitary napkins and pantyliners, filling materials for comforters, pillows and sleeping bags, food packaging, in particular for meat products, papers, in particular filter papers, flock, clothing, in particular nonwovens and apparel textiles for moisture management mixed with other fibers or as a multi-layered construction, and wound dressings.
  • FIG. 1 shows the attachment of two conventional Y-fibers 1, 2 and the pore structure formed thereby.
  • a smaller pore size can now be achieved by a suitable arrangement and dimensioning of at least one, preferably a plurality of, legs deviating from the elongated section.
  • FIG. 3 shows a preferred embodiment of a fiber 1 "according to the invention with an elongate portion 3 and several of them in the case of FIG. 3
  • This fiber may be made by spinning a viscose spinning material through a spinning orifice having a corresponding configuration (ie, a slit-shaped portion and branch-like portions branching from this portion) at substantially right angles to the elongate portion 3.
  • the length of the legs 4, 5, 6, 7 is, as in FIG. 3 each less than 40% of the length of the elongated section.
  • the width of the legs is in each case smaller than the width of the elongated section.
  • the legs of the structure of the invention fabric act as spacers, which in the juxtaposition of several such fibers (see FIG. 4 ) causes the formation of a large number of very fine capillaries.
  • the legs also act as a reinforcement and spacer, preventing bending of the fiber across the thinner axis of the flat fiber part. In this way, a high absorption capacity is ensured.
  • Another advantage of the fiber according to the invention is that in the large number of spaces between the legs of a fiber water is stored by adhesive forces particularly advantageous, which in FIG. 5 is pictured. Structures of the fibers according to the invention thus have a particularly high water retention capacity against pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP20110174140 2011-07-15 2011-07-15 Regenerierte Cellulosefaser Withdrawn EP2546395A1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP20110174140 EP2546395A1 (de) 2011-07-15 2011-07-15 Regenerierte Cellulosefaser
PCT/EP2012/062376 WO2013010761A1 (de) 2011-07-15 2012-06-26 Regenerierte cellulosefaser
JP2014519487A JP2014524987A (ja) 2011-07-15 2012-06-26 再生セルロース繊維
US14/232,828 US20140147616A1 (en) 2011-07-15 2012-06-26 Regenerated cellulose fiber
KR20147000669A KR20140037209A (ko) 2011-07-15 2012-06-26 재생 셀룰로오스계 섬유
CN201280035135.0A CN103649388A (zh) 2011-07-15 2012-06-26 再生的纤维素纤维
AU2012286157A AU2012286157A1 (en) 2011-07-15 2012-06-26 Regenerated cellulose fiber
EP12730931.8A EP2732082A1 (de) 2011-07-15 2012-06-26 Regenerierte cellulosefaser
BR112014000826A BR112014000826A2 (pt) 2011-07-15 2012-06-26 fibra de celulose regenerada
CA 2839234 CA2839234A1 (en) 2011-07-15 2012-06-26 Regenerated cellulose fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110174140 EP2546395A1 (de) 2011-07-15 2011-07-15 Regenerierte Cellulosefaser

Publications (1)

Publication Number Publication Date
EP2546395A1 true EP2546395A1 (de) 2013-01-16

Family

ID=46420165

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20110174140 Withdrawn EP2546395A1 (de) 2011-07-15 2011-07-15 Regenerierte Cellulosefaser
EP12730931.8A Withdrawn EP2732082A1 (de) 2011-07-15 2012-06-26 Regenerierte cellulosefaser

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12730931.8A Withdrawn EP2732082A1 (de) 2011-07-15 2012-06-26 Regenerierte cellulosefaser

Country Status (9)

Country Link
US (1) US20140147616A1 (ko)
EP (2) EP2546395A1 (ko)
JP (1) JP2014524987A (ko)
KR (1) KR20140037209A (ko)
CN (1) CN103649388A (ko)
AU (1) AU2012286157A1 (ko)
BR (1) BR112014000826A2 (ko)
CA (1) CA2839234A1 (ko)
WO (1) WO2013010761A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2546397A1 (de) * 2011-07-15 2013-01-16 Kelheim Fibres GmbH Regenerierte Cellulosefaser
CN106633980A (zh) * 2016-12-05 2017-05-10 芜湖天鸿汽车零部件有限公司 一种汽车坐垫的填充材料及其制备方法
US10383369B2 (en) 2017-06-07 2019-08-20 Rai Strategic Holdings, Inc. Fibrous filtration material for electronic smoking article

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333047A (en) 1969-11-27 1973-10-10 Courtaulds Ltd Process for making filaments
US4129679A (en) 1969-11-27 1978-12-12 Courtaulds Limited Multi-limbed regenerated cellulose filaments
US4362159A (en) 1980-10-15 1982-12-07 Kao Soap Co., Ltd. Tampon
EP0301874A1 (en) 1987-07-30 1989-02-01 Courtaulds Plc Cellulosic fibre
WO1989001062A1 (en) * 1987-07-30 1989-02-09 Courtaulds Plc Cellulosic fibre
US6403217B1 (en) 1996-08-22 2002-06-11 Clemson University Research Foundation Bundles of fibers useful for moving liquids at high fluxes and acquisition/distribution structures that use the bundles
WO2004005595A1 (en) 2002-07-09 2004-01-15 Lenzing Aktiengesellschaft Process for the manufacture of solid regenerated viscose fibres
WO2004085720A1 (de) 2003-03-27 2004-10-07 Lenzing Aktiengesellschaft Massive regenerierte standardviskosefaser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2280098A1 (de) * 2009-07-31 2011-02-02 Kelheim Fibres GmbH Regenerierte Cellulosefaser

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333047A (en) 1969-11-27 1973-10-10 Courtaulds Ltd Process for making filaments
US4129679A (en) 1969-11-27 1978-12-12 Courtaulds Limited Multi-limbed regenerated cellulose filaments
US4362159A (en) 1980-10-15 1982-12-07 Kao Soap Co., Ltd. Tampon
EP0301874A1 (en) 1987-07-30 1989-02-01 Courtaulds Plc Cellulosic fibre
WO1989001062A1 (en) * 1987-07-30 1989-02-09 Courtaulds Plc Cellulosic fibre
US5458835A (en) 1987-07-30 1995-10-17 Courtaulds Plc Process of making viscose staple fibers
US5634914A (en) 1987-07-30 1997-06-03 Courtaulds Plc Cellulosic fibre
US6403217B1 (en) 1996-08-22 2002-06-11 Clemson University Research Foundation Bundles of fibers useful for moving liquids at high fluxes and acquisition/distribution structures that use the bundles
WO2004005595A1 (en) 2002-07-09 2004-01-15 Lenzing Aktiengesellschaft Process for the manufacture of solid regenerated viscose fibres
WO2004085720A1 (de) 2003-03-27 2004-10-07 Lenzing Aktiengesellschaft Massive regenerierte standardviskosefaser

Also Published As

Publication number Publication date
AU2012286157A1 (en) 2014-01-16
BR112014000826A2 (pt) 2017-02-21
CN103649388A (zh) 2014-03-19
JP2014524987A (ja) 2014-09-25
EP2732082A1 (de) 2014-05-21
CA2839234A1 (en) 2013-01-24
KR20140037209A (ko) 2014-03-26
US20140147616A1 (en) 2014-05-29
WO2013010761A1 (de) 2013-01-24

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