EP2732082A1 - Fibre cellulosique régénérée - Google Patents

Fibre cellulosique régénérée

Info

Publication number
EP2732082A1
EP2732082A1 EP12730931.8A EP12730931A EP2732082A1 EP 2732082 A1 EP2732082 A1 EP 2732082A1 EP 12730931 A EP12730931 A EP 12730931A EP 2732082 A1 EP2732082 A1 EP 2732082A1
Authority
EP
European Patent Office
Prior art keywords
cellulose fiber
fibers
fiber
legs
length
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Withdrawn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
EP12730931.8A
Other languages
German (de)
English (en)
Inventor
Ingo Bernt
Matthew North
Reinhold RÖTHENBACHER
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 EP12730931.8A priority Critical patent/EP2732082A1/fr
Publication of EP2732082A1 publication Critical patent/EP2732082A1/fr
Withdrawn legal-status Critical Current

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
    • 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 produced by the
  • fibers having a particularly high liquid storage capacity are desirable in order to allow the highest possible absorption capacity of the hygiene product.
  • 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 use a minimum of effort
  • multi-limbed fibers obtained by the use of spinnerets with multi-limbed extrusion holes having at least 3 legs with a length-to-width ratio of 2: 1 to 10: 1, such as
  • 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 to 5: 1. The larger the length-to-width ratio, the higher would be the proportion of free volume and the absorbency of the fibers, provided that the legs are not so long and thin that they bend back on themselves.
  • WO 2004/085720 A discloses a massive regenerated standard viscose fiber which has a cross section whose area is reduced by a factor of less than 2.50 times, preferably less than 2.40 times, particularly preferably less than 2.25 times. times larger than the area 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.
  • WO 2004/005595 A describes an absorbent standard viscose fiber with an irregular lobed cross section. Other viscose fibers with irregular
  • No. 6,403,217 Bl describes a wide variety of nozzle configurations for the production of fibers with modified fiber cross sections by the melt spinning method.
  • Melt-spinning processes differ fundamentally from the wet-spinning process used in the viscose process.
  • 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.
  • Cellulose fiber and the fiber bundle according to the invention are Cellulose fiber and the fiber bundle according to the invention.
  • FIG. 1 shows the attachment of two trilobal cellulose fibers known from EP 0 301 874, for example.
  • Figure 2 shows the deposits of several fibers with a flat cross-section.
  • FIG. 3 shows the cross section of a fiber according to the invention.
  • FIG. 4 shows the deposits of several fibers according to the invention.
  • Figure 5 shows the retention of water by a fiber 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 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 in accordance with the invention).
  • the curvature is considered to be the angle passing through the end points of the flat section and the farthest from the imaginary straight line through it
  • Endpoints remote point of the flat section is defined.
  • the fiber titer of the fiber according to the invention can be from 1.3 dtex to 10 dtex.
  • the fiction, contemporary cellulose fiber may be in the form of a staple fiber, short-cut fiber or filament cable.
  • 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%, more preferably at least 50% of the multi-limbed cellulose fibers are present in the form of a fiction, contemporary cellulose fiber.
  • a fiber bundle which contains a plurality of regenerated multi-limbed cellulose fibers, wherein at least 10%, preferably at least 20%, more preferably at least 50% of the multi-limbed cellulose fibers are present in the form of a fiction, contemporary cellulose fiber.
  • Fiber bundles can also contain essentially all of the multi-limbed ones
  • Cellulose fibers are present in the form of a cellulose fiber according to the invention.
  • a "fiber bundle” is to be understood as meaning a multiplicity of fibers, for example, staple fiber (a multiplicity 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 inventive method for producing a regenerated cellulose fiber or a fiber bundle according to any one of the preceding claims comprises the steps
  • the opening of the spinneret has a slit-shaped portion from which branches off at least one leg whose length is not more than 40% of the length of the slit-shaped portion.
  • 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 Ab section 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
  • the invention also relates to the use of fiction, modern regenerated
  • Cellulose fiber or the inventive fiber bundle 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 clothing textiles for the household
  • Moisture management in mixture with other fibers or as a multilayer construction, and wound dressings are possible.
  • Y-fibers are known for the production of absorbent bodies with high absorption capacity. Due to the wings present here, the fiber centers are kept at a great distance from each other, so that structures with a large
  • 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 section 3 and several thereof in the case of FIG. 3 substantially at right angles to the elongated section 3, different legs 4, 5, 6, 7.
  • This fiber can be formed by spinning a viscose spinning mass through a spinning opening with
  • Section branching schenkeiförmigen sections are produced.
  • the length of the legs 4, 5, 6, 7 is, as shown in Figure 3, each less than 40% of the length of the elongate portion.
  • the width of the legs is in each case smaller than the width of the elongated section.
  • the legs of the fabric according to the invention manufactured structure act as spacers, which causes the formation of a large number of very fine capillaries in the juxtaposition of several such fibers (see Figure 4).
  • the legs also act as reinforcement and spacer, which is a

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)

Abstract

L'invention concerne une fibre cellulosique régénérée (1") dont la section transversale présente une partie allongée (3) sensiblement plane. La fibre selon l'invention est caractérisée en ce qu'au moins une branche (4, 5, 6, 7) s'étend à partir de ladite partie allongée, la longueur de cette branche correspondant au maximum à 40% de la longueur de la partie allongée (3).
EP12730931.8A 2011-07-15 2012-06-26 Fibre cellulosique régénérée Withdrawn EP2732082A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12730931.8A EP2732082A1 (fr) 2011-07-15 2012-06-26 Fibre cellulosique régénérée

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20110174140 EP2546395A1 (fr) 2011-07-15 2011-07-15 Fibre de cellulose régénérée
PCT/EP2012/062376 WO2013010761A1 (fr) 2011-07-15 2012-06-26 Fibre cellulosique régénérée
EP12730931.8A EP2732082A1 (fr) 2011-07-15 2012-06-26 Fibre cellulosique régénérée

Publications (1)

Publication Number Publication Date
EP2732082A1 true EP2732082A1 (fr) 2014-05-21

Family

ID=46420165

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20110174140 Withdrawn EP2546395A1 (fr) 2011-07-15 2011-07-15 Fibre de cellulose régénérée
EP12730931.8A Withdrawn EP2732082A1 (fr) 2011-07-15 2012-06-26 Fibre cellulosique régénérée

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20110174140 Withdrawn EP2546395A1 (fr) 2011-07-15 2011-07-15 Fibre de cellulose régénérée

Country Status (9)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2546397A1 (fr) * 2011-07-15 2013-01-16 Kelheim Fibres GmbH Fibre de cellulose régénérée
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
CN115652456A (zh) * 2022-11-12 2023-01-31 广东格菲林卫材科技有限公司 一种异形截面纤维、无纺布及喷丝板

Family Cites Families (9)

* 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
JPS5766754A (en) 1980-10-15 1982-04-23 Kao Corp Tampon
GB2208277B (en) 1987-07-30 1991-11-13 Courtaulds Plc Cellulosic fibre
ATE77417T1 (de) * 1987-07-30 1992-07-15 Courtaulds Plc Cellulosefaser.
US6103376A (en) * 1996-08-22 2000-08-15 Eastman Chemical Company Bundles of fibers useful for moving liquids at high fluxes and acquisition/distribution structures that use the bundles
JP4358106B2 (ja) * 2002-07-09 2009-11-04 レンツィンク アクチェンゲゼルシャフト 固体再生ビスコース繊維の製造方法
AT412654B (de) 2003-03-27 2005-05-25 Chemiefaser Lenzing Ag Massive regenerierte standardviskosefaser
EP2280098A1 (fr) * 2009-07-31 2011-02-02 Kelheim Fibres GmbH Fibre de cellulose régénérée

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013010761A1 *

Also Published As

Publication number Publication date
CN103649388A (zh) 2014-03-19
CA2839234A1 (fr) 2013-01-24
US20140147616A1 (en) 2014-05-29
KR20140037209A (ko) 2014-03-26
WO2013010761A1 (fr) 2013-01-24
JP2014524987A (ja) 2014-09-25
EP2546395A1 (fr) 2013-01-16
BR112014000826A2 (pt) 2017-02-21
AU2012286157A1 (en) 2014-01-16

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