GB2328397A - Manufacture of elongate members - Google Patents

Manufacture of elongate members

Info

Publication number
GB2328397A
GB2328397A GB9818107A GB9818107A GB2328397A GB 2328397 A GB2328397 A GB 2328397A GB 9818107 A GB9818107 A GB 9818107A GB 9818107 A GB9818107 A GB 9818107A GB 2328397 A GB2328397 A GB 2328397A
Authority
GB
United Kingdom
Prior art keywords
die
solution
range
extruded
cellulose
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
GB9818107A
Other versions
GB9818107D0 (en
GB2328397B (en
Inventor
Stephen Byron Smith
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Publication of GB9818107D0 publication Critical patent/GB9818107D0/en
Publication of GB2328397A publication Critical patent/GB2328397A/en
Application granted granted Critical
Publication of GB2328397B publication Critical patent/GB2328397B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/02—Cellulose; Modified cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)

Abstract

Elongate lyocell members such as fibres of low fibrillation tendency can be manufactured by a method wherein a solution of cellulose in an aqueous tertiary amine N-oxide solvent is extruded through a die by way of a gaseous gap into an aqueous coagulating bath to form an elongate member which is thereafter washed and dried, the method having good spinning stability and being characterised in that in combination (1) the concentration of cellulose in the solution is in the range from 2.0 to 4.5, preferably from 2.0 to 4.0, percent by weight: (2) the ratio of the velocity of the elongate member as it is removed from the coagulating bath to the velocity of the solution as it is extruded through the die is in the range from 1.0 to 2.0, preferably from 1.0 to 1.5; and (3) the width of the die is in the range from 40 to 80, preferably from 60 to 80, further preferably from 70 to 80, micrometer.
GB9818107A 1996-03-15 1997-03-12 Manufacture of elongate members Expired - Fee Related GB2328397B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9605504.1A GB9605504D0 (en) 1996-03-15 1996-03-15 Manufacture of elongate members
PCT/GB1997/000677 WO1997035054A1 (en) 1996-03-15 1997-03-12 Manufacture of elongate members

Publications (3)

Publication Number Publication Date
GB9818107D0 GB9818107D0 (en) 1998-10-14
GB2328397A true GB2328397A (en) 1999-02-24
GB2328397B GB2328397B (en) 1999-08-11

Family

ID=10790468

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9605504.1A Pending GB9605504D0 (en) 1996-03-15 1996-03-15 Manufacture of elongate members
GB9818107A Expired - Fee Related GB2328397B (en) 1996-03-15 1997-03-12 Manufacture of elongate members

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9605504.1A Pending GB9605504D0 (en) 1996-03-15 1996-03-15 Manufacture of elongate members

Country Status (6)

Country Link
AU (1) AU1933297A (en)
DE (1) DE19781649T1 (en)
GB (2) GB9605504D0 (en)
ID (1) ID16355A (en)
TW (1) TW380168B (en)
WO (1) WO1997035054A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6221487B1 (en) 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6511930B1 (en) 1996-08-23 2003-01-28 Weyerhaeuser Company Lyocell fibers having variability and process for making

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405532B (en) * 1997-06-17 1999-09-27 Chemiefaser Lenzing Ag CELLULOSIC MICROFIBER
AT405531B (en) * 1997-06-17 1999-09-27 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC FIBERS
EP2589689B1 (en) * 2010-06-30 2018-02-28 Kolon Industries, Inc. Dope for spinning lyocell, method for preparing lyocell filament fiber , and method for preparing a lyocell staple fiber using same
TWI667378B (en) 2014-01-03 2019-08-01 奧地利商蘭精股份有限公司 Cellulosic fibre
EP3536853A1 (en) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Lyocell fiber with decreased pill formation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494851A2 (en) * 1991-01-09 1992-07-15 Lenzing Aktiengesellschaft Process for the production of cellulosic articles
EP0494852A2 (en) * 1991-01-09 1992-07-15 Lenzing Aktiengesellschaft Process for the production of cellulosic articles
WO1995002082A1 (en) * 1993-07-08 1995-01-19 Lenzing Aktiengesellschaft Cellulose fibres
WO1996017118A1 (en) * 1994-12-02 1996-06-06 Akzo Nobel N.V. Method of producing shaped cellulose bodies, and yarn made of cellulose filaments
WO1996021758A1 (en) * 1995-01-10 1996-07-18 Courtaulds Fibres (Holdings) Limited Manufacture of extruded articles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494851A2 (en) * 1991-01-09 1992-07-15 Lenzing Aktiengesellschaft Process for the production of cellulosic articles
EP0494852A2 (en) * 1991-01-09 1992-07-15 Lenzing Aktiengesellschaft Process for the production of cellulosic articles
WO1995002082A1 (en) * 1993-07-08 1995-01-19 Lenzing Aktiengesellschaft Cellulose fibres
WO1996017118A1 (en) * 1994-12-02 1996-06-06 Akzo Nobel N.V. Method of producing shaped cellulose bodies, and yarn made of cellulose filaments
WO1996021758A1 (en) * 1995-01-10 1996-07-18 Courtaulds Fibres (Holdings) Limited Manufacture of extruded articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6221487B1 (en) 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6511930B1 (en) 1996-08-23 2003-01-28 Weyerhaeuser Company Lyocell fibers having variability and process for making
US7067444B2 (en) 1996-08-23 2006-06-27 Weyerhaeuser Company Lyocell nonwoven fabric

Also Published As

Publication number Publication date
ID16355A (en) 1997-09-25
DE19781649T1 (en) 1999-04-29
GB9818107D0 (en) 1998-10-14
WO1997035054A1 (en) 1997-09-25
GB9605504D0 (en) 1996-05-15
TW380168B (en) 2000-01-21
GB2328397B (en) 1999-08-11
AU1933297A (en) 1997-10-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010312