EP0604973B1 - Pillingarmes Mischgarn aus Polyester - Google Patents

Pillingarmes Mischgarn aus Polyester Download PDF

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Publication number
EP0604973B1
EP0604973B1 EP93121003A EP93121003A EP0604973B1 EP 0604973 B1 EP0604973 B1 EP 0604973B1 EP 93121003 A EP93121003 A EP 93121003A EP 93121003 A EP93121003 A EP 93121003A EP 0604973 B1 EP0604973 B1 EP 0604973B1
Authority
EP
European Patent Office
Prior art keywords
fiber
polyester
weight
staple
fibers
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.)
Expired - Lifetime
Application number
EP93121003A
Other languages
English (en)
French (fr)
Other versions
EP0604973A1 (de
Inventor
William H. Holden, Jr.
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.)
CNA Holdings LLC
Original Assignee
Hoechst Celanese Corp
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 Hoechst Celanese Corp filed Critical Hoechst Celanese Corp
Publication of EP0604973A1 publication Critical patent/EP0604973A1/de
Application granted granted Critical
Publication of EP0604973B1 publication Critical patent/EP0604973B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • the present invention relates to polyester blended yarn and the use of bicomponent polyester fiber in the polyester blended yarn.
  • the fabrics comprising synthetic polymer fibers such as poly(ethylene terephthalate) (PET) fibers, and blends of natural and synthetic fibers have an undesirable propensity upon prolonged use to exhibit small, compact groupings of entangled fibers (i.e., fuzz balls) on the fabric surface.
  • Such fiber groupings commonly are termed "pills" and tend to form and to tenaciously adhere to the surface of the fabric as the fabric encounters surface abrasion during normal use.
  • the aesthetic appearance of fabric accordingly may be adversely influenced by these relatively compact groupings of entangled fibers which are retained on the surface of the fabrics.
  • the pills can be traced to the relatively high strength of the synthetic fibers present in the fabric.
  • the pills may be more or less permanently attached to the fabric surface by one or a few synthetic polymer fibers extending out of the fabric which will resist breakage as surface abrasion continues.
  • Pills commonly are observed on the fabric formed from blends of cotton and staple poly(ethylene terephthalate) fibers following extended use. While pills may be observed in fabrics having wider variety of constructions, they are frequently observed on loosely constructed fabrics, particularly knitted fabrics using spun yarns of polyester staple fiber and cotton.
  • One approach heretofore proposed is to reduce the tendency of the poly(ethylene terephthalate) fibers to pill initially by limiting the molecular weight (measured as the intrinsic viscosity) of the poly(ethylene terephthalate) polymer prior to fiber formation.
  • Such reduced intrinsic viscosity provides a general indication of reduced polymeric chain length and leads to fibers having a lesser strength. Accordingly, when such entangled fibers become free on the surface of the fabric following abrasion, they tend to cleanly break away more readily and do not serve as a secure length which retains a fuzz ball at the surface of the fabric.
  • polyester fiberfill blends can be made of polyester fibers and binder fibers such as bicomponent fibers.
  • binder fibers such as bicomponent fibers.
  • such fibers are blended and formed into an unbonded back of the desired weight that is heat treated to melt the chief material of the bicomponent fiber and then cooled to result in a bonded nonwoven fabric.
  • a polyester blended yarn consisting essentially of from about 40% to about 70% by weight of matrix staple fiber, from about 1% to 20% by weight of crimped staple bicomponent fiber having a polyester core and a sheath of polyester or a copolyester having a melting point lower than that of the polyester core and complementary to total 100% by weight from about 59% to about 10% of crimped polyester staple fiber of a denier of about 0.5 to less than 10 dpf.
  • the instant product overcomes the disadvantages of the prior art because of its simplicity and ease of control. Accordingly, the instant product fulfills a need for a product to render polyester blended yarn, low pilling, which is simple to use, easy to control and readily commercializable.
  • the instant invention is directed to a polyester blended yarn consisting of 1% to 20% bicomponent fibers so that the resulting polyester fabric does not pill.
  • the polyester blended yarn consists essentially of 40% to 70% by weight of matrix staple fibers and from about 1% to 20% by weight of crimped staple bicomponent fibers and complementary up to a total 100% by weight from about 59% to about 10% of crimped polyester staple fiber.
  • the staple fibers used in here are textile fibers having a linear density suitable for wearing apparel, i.e., less than 10 dpf per fiber, preferably less than 6 dpf per fiber in lengths from 0.75 to 2.5 inches. Crimped fibers are particularly preferred for textile aesthetics and processability.
  • the matrix staple fiber used in the present invention may be any fiber whether synthetic or natural, used in conjunction with polyester fibers to make fabric.
  • Such fibers may be made from cotton, wool, rayon, acrylic, nylon and polypropylene.
  • cotton fibers are used in the present invention.
  • the next ingredient is a polyester, in particular, poly (ethylene terephthalate) (PET).
  • PET polymer can be made by either terephthalic acid or dimethyl terephthalate or copolymer processes, which are well known to those of ordinary skill in the art.
  • the third essential ingredient in the blend is bicomponent fiber which is a sheath core fiber, the sheath of which comprises the lower melting binder polymer as suggested in U.S. Patent No. 4,068,036.
  • the bicomponent fiber is made up of a polyester core and a sheath of a polyester or a copolyester having a melting point lower than that of the polyester core the polyester staple fibers.
  • a preferred sheath material is an ethylene terephthalate/isothalate copolyester.
  • the matrix staple fiber is cotton fiber.
  • the process for making the fabric involves steps of first preparing a blend of about 40% to about 70% by weight of cotton fibers, from about 1 to about 20% by weight of bicomponent fibers and complementary to total 100% by weight of polyester staple fibers.
  • a continuous yarn is spun from the blend.
  • the spun yarn should have sufficient twist or entanglement for uses in fabric.
  • the presence of cotton in the yarn provides added softness and moisture absorption.
  • the fabrics made according to the process are low pill, i.e. they are low pilling fabrics.
  • low pill or it's equivalent, means herein that the tested material obtains a value of 4 to 5 as defined by ASTMD3512-82 entitled "Standard Test Method for Pilling Resistance In Other Related Surface Changes Of Textile Fabrics: Random Tumble Pilling Tester Method.”
  • the values of 4 or 5 indicates low pill formation whereas values between 1 and 3 indicate various levels of pilling.
  • a polyester blended yarn was prepared from a 50/50 blend of a polyester staple fiber having a denier of 0.9 dpf and a length of 3.17 cm (1.25 inch), and standard cotton staple fiber.
  • the blend was carded to produce a 65 grain/yard sliver intimately blended with the mixture of fibers shown above.
  • the sliver was then drawn twice to produce a 56 grain/yard sliver.
  • the yarn was then spun on an open-end spinning machine to deliver a 28 singles cotton count yarn.
  • the yarn was knitted to produce standard fleece circular knit fabric wherein the yarn was used for face and tie yarns with a normal 15 singles cotton count used as backing yarn.
  • the fabric was dyed and finished to produce standard fleece fabric.
  • the fabric was tested for pilling by being washed for 60 minutes and rated 1, 2 and 2, unacceptable levels of pilling.
  • a polyester blended yarn was prepared from a blend of 10% bicomponent fiber, 40% polyester staple fiber and 50% cotton staple fiber.
  • the bicomponent fiber has a polyester core and a copolyester sheath having a denier of 2.0 dpf and a length of 3.8 cm (1.5 inch).
  • the bicomponent fiber is available as Celbond® K-54 fiber from the Hoechst Celanese Corporation.
  • the fabric was tested for pilling by being washed for 60 minutes and rated 5, 5 and 5 indicating low pill formation.
  • the bicomponent fiber tends to soften, mill and bind to the contiguous fibers thus producing fiber locking, contributing to the low pilling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Claims (15)

  1. Polyestergarngemisch, im wesentlichen bestehend aus
    a) etwa 40 bis etwa 70 Gew.-% einer Matrixstapelfaser;
    b) etwa 1 bis etwa 20 Gew.-% gekräuselter Zweikomponentenstapelfaser mit einem Polyesterkern und einer Hülle aus Polyester oder einem Copolyester, der einen niedrigeren Schmelzpunkt als der Polyesterkern besitzt; sowie
    c) als Ergänzung auf insgesamt 100 Gew.-% etwa 59% bis etwa 10% gekräuselter Polyesterstapelfaser mit einer Fadenfeinheit von etwa 0,5 bis weniger als 10 dpf.
  2. Gemisch gemäß Anspruch 1, wobei es sich bei der Polyesterfaser und dem Polyesterkern um Polyethylenterephthalat handelt.
  3. Gemisch gemäß Anspruch 2, wobei die Zweikomponentenfaser eine Hülle aus einem Ethylenterephthalat/isophthalat-Copolyester aufweist.
  4. Gemisch gemäß Anspruch 2, wobei die Zweikomponentenfaser eine Fadenfeinheit von etwa 0,5 bis etwa 6 denier hat.
  5. Gemisch gemäß Anspruch 1, wobei die Matrixstapelfaser aus der Gruppe ausgewählt ist, die aus Rayon, Acryl, Polypropylen, Wolle und Baumwolle besteht.
  6. Gemisch gemäß Anspruch 1, wobei die Matrixstapelfaser eine natürliche Faser ist.
  7. Gemisch gemäß Anspruch 1, wobei die Matrixstapelfaser eine synthetische Faser ist.
  8. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung, umfassend ein Polyestergarngemisch, im wesentlichen bestehend aus
    a) etwa 40 bis etwa 70 Gew.-% einer Matrixstapelfaser;
    b) etwa 1 bis etwa 20 Gew.-% gekräuselter Zweikomponentenstapelfaser mit einem Polyesterkern und einer Hülle aus Polyester oder einem Copolyester, der einen niedrigeren Schmelzpunkt als der Polyesterkern besitzt; sowie
    c) als Ergänzung auf insgesamt 100 Gew.-% etwa 59% bis etwa 10% gekräuselter Polyesterfaser mit einer Fadenfeinheit von etwa 0,5 bis weniger als 10 dpf, wobei die Polyesterfaser einen höheren Schmelzpunkt hat als die Hülle der Zweikomponentenfaser.
  9. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung gemäß Anspruch 8, wobei es sich bei der Polyesterfaser und dem Polyesterkern um Polyethylenterephthalat handelt.
  10. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung gemäß Anspruch 9, wobei die Zweikomponentenfaser eine Hülle aus einem Ethylenterephthalat/isophthalat-Copolyester aufweist.
  11. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung gemäß Anspruch 9, wobei die Zweikomponentenfaser eine Fadenfeinheit von etwa 0,5 bis etwa 6 denier hat.
  12. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung gemäß Anspruch 8, wobei die Matrixstapelfaser aus der Gruppe ausgewählt ist, die aus Rayon, Acryl, Polypropylen, Wolle und Baumwolle besteht.
  13. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung gemäß Anspruch 8, wobei die Matrixstapelfaser eine natürliche Faser ist.
  14. Textilstoff mit geringer Oberflächen-Faserkügelchenbildung gemäß Anspruch 8, wobei die Matrixstapelfaser eine synthetische Faser ist.
  15. Verfahren zur Herstellung eines Textilstoffs mit geringer Oberflächen-Faserkügelchenbildung aus einem Polyestergarngemisch, umfassend die Schritte:
    a) Bilden eines Stapelfasergemischs aus etwa 40 bis etwa 70 Gew.-% Baumwollfasern, etwa 1 bis etwa 20 Gew.-% gekräuselter Zweikomponentenstapelfaser mit einem Polyesterkern und einer Hülle aus Polyester oder einem Copolyester, der einen niedrigeren Schmelzpunkt als der Polyesterkern besitzt, sowie als Ergänzung auf insgesamt 100 Gew.-% etwa 59% bis etwa 10% gekräuselter Polyesterstapelfaser;
    b) Kardieren, Strecken und Spinnen des Fasergemischs unter Bildung eines kontinuierlichen Garns;
    c) Sammeln des Garns;
    d) Bilden eines Textilstoffs aus dem Garn;
    e) Färben und Appretieren des Textilstoffs bei Temperaturen von etwa 120°C bis etwa 220°C.
EP93121003A 1992-12-31 1993-12-28 Pillingarmes Mischgarn aus Polyester Expired - Lifetime EP0604973B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99977492A 1992-12-31 1992-12-31
US999774 1992-12-31

Publications (2)

Publication Number Publication Date
EP0604973A1 EP0604973A1 (de) 1994-07-06
EP0604973B1 true EP0604973B1 (de) 1997-02-26

Family

ID=25546668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93121003A Expired - Lifetime EP0604973B1 (de) 1992-12-31 1993-12-28 Pillingarmes Mischgarn aus Polyester

Country Status (3)

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EP (1) EP0604973B1 (de)
AT (1) ATE149215T1 (de)
DE (1) DE69308279T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537703A1 (de) * 1995-10-11 1997-04-17 Hoechst Trevira Gmbh & Co Kg Textile Flächengebilde hoher Dichte aus Polyesterhybridgarnen, Verfahren zur Herstellung von Verbundwerkstoffen und Verwendung der textilen Flächengebilde
US6250060B1 (en) * 1997-04-18 2001-06-26 Wellman, Inc. Method of producing improved knit fabrics from blended fibers
US6110587A (en) 1997-10-14 2000-08-29 Wellman, Inc. Modified polyester with high intrinsic viscosity at moderate strength
US7036299B2 (en) 2001-12-21 2006-05-02 Invista North America S.A.R.L. Stretch polyster/cotton spun yarn
US20030136099A1 (en) * 2001-12-21 2003-07-24 Hietpas Geoffrey D. Stretch polyester/cotton spun yarn
US20040067707A1 (en) * 2002-10-04 2004-04-08 Hamilton Lorne M. Stretch polyester and acrylic spun yarn
US8513146B2 (en) 2005-09-29 2013-08-20 Invista North America S.ár.l. Scalloped oval bicomponent fibers with good wicking, and high uniformity spun yarns comprising such fibers
DE102019104834A1 (de) * 2019-02-26 2020-08-27 W.F. Gözze Frottierweberei GmbH Verfahren zur rohstofflichen Verwertung kurzfaseriger Baumwollfaserreste

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA808866A (en) * 1969-03-25 Kenneth C. Mcalister, Jr. Pill resistant polyester fabrics
US3104450A (en) * 1958-01-08 1963-09-24 Du Pont Textile material
FR1603030A (de) * 1968-06-04 1971-03-15
US4014829A (en) * 1974-10-30 1977-03-29 E. I. Du Pont De Nemours And Company Flame resistant fiber blends
US4270913A (en) * 1979-07-06 1981-06-02 Celanese Corporation Pill-resistant polyester fabrics
EP0086630B1 (de) * 1982-02-11 1987-05-06 E.I. Du Pont De Nemours And Company Polyestergarn

Also Published As

Publication number Publication date
EP0604973A1 (de) 1994-07-06
ATE149215T1 (de) 1997-03-15
DE69308279T2 (de) 1997-07-10
DE69308279D1 (de) 1997-04-03

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