CL2008003884A1 - Method for making a lyocell pulp which comprises providing an unbleached pulp with an intrinsic viscosity (iv) between 10 and 5 dl / g, contacting said pulp in a bleaching sequence that has at least one enzyme treatment step, which reduces the iv of the pulp in the range of 2 to 8 units. - Google Patents

Method for making a lyocell pulp which comprises providing an unbleached pulp with an intrinsic viscosity (iv) between 10 and 5 dl / g, contacting said pulp in a bleaching sequence that has at least one enzyme treatment step, which reduces the iv of the pulp in the range of 2 to 8 units.

Info

Publication number
CL2008003884A1
CL2008003884A1 CL2008003884A CL2008003884A CL2008003884A1 CL 2008003884 A1 CL2008003884 A1 CL 2008003884A1 CL 2008003884 A CL2008003884 A CL 2008003884A CL 2008003884 A CL2008003884 A CL 2008003884A CL 2008003884 A1 CL2008003884 A1 CL 2008003884A1
Authority
CL
Chile
Prior art keywords
pulp
contacting
making
lyocell
comprises providing
Prior art date
Application number
CL2008003884A
Other languages
Spanish (es)
Inventor
Luo Mengkui
Original Assignee
Weyerhaeuser Co
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 Weyerhaeuser Co filed Critical Weyerhaeuser Co
Publication of CL2008003884A1 publication Critical patent/CL2008003884A1/en

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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/40—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides

Abstract

Método para elaborar una pulpa de lyocell que comprende proporcionar una pulpa sin blanquear, poner en contacto dicha pulpa en una secuencia de blanqueo, donde la citada secuencia de blanqueo tiene al menos una etapa de un tratamiento de enzima.Method for making a lyocell pulp which comprises providing an unbleached pulp, contacting said pulp in a bleaching sequence, wherein said bleaching sequence has at least one step of an enzyme treatment.

CL2008003884A 2007-12-31 2008-12-23 Method for making a lyocell pulp which comprises providing an unbleached pulp with an intrinsic viscosity (iv) between 10 and 5 dl / g, contacting said pulp in a bleaching sequence that has at least one enzyme treatment step, which reduces the iv of the pulp in the range of 2 to 8 units. CL2008003884A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/967,820 US20090165969A1 (en) 2007-12-31 2007-12-31 Enzymatic treatment of pulp for lyocell manufacture

Publications (1)

Publication Number Publication Date
CL2008003884A1 true CL2008003884A1 (en) 2009-12-18

Family

ID=40786669

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2008003884A CL2008003884A1 (en) 2007-12-31 2008-12-23 Method for making a lyocell pulp which comprises providing an unbleached pulp with an intrinsic viscosity (iv) between 10 and 5 dl / g, contacting said pulp in a bleaching sequence that has at least one enzyme treatment step, which reduces the iv of the pulp in the range of 2 to 8 units.

Country Status (4)

Country Link
US (1) US20090165969A1 (en)
AR (1) AR069928A1 (en)
CL (1) CL2008003884A1 (en)
WO (1) WO2009088635A2 (en)

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CN101694019B (en) * 2009-09-30 2011-08-10 上海里奥纤维企业发展有限公司 Solvent method high-wet-modulus bamboo fiber and preparation method thereof
TWI392780B (en) * 2009-12-31 2013-04-11 Wet melt with a mold, antibacterial and deodorant function of cellulose non-woven system
TWI392781B (en) * 2009-12-31 2013-04-11 Preparation of Natural Cellulose Nonwoven by Wet Spunbond Method
TWI392779B (en) * 2009-12-31 2013-04-11 A method for preparing natural cellulose nonwoven fabric by wet meltblowing
CN102127842B (en) * 2010-01-13 2014-07-16 聚隆纤维股份有限公司 Method for preparing natural cellulose nonwoven fabric in wet-type meltblown mode
CN102127840B (en) * 2010-01-13 2014-07-16 聚隆纤维股份有限公司 Method for preparing natural cellulose non-woven fabric in wet spunbond mode
US9027765B2 (en) 2010-12-17 2015-05-12 Hollingsworth & Vose Company Filter media with fibrillated fibers
US9352267B2 (en) 2012-06-20 2016-05-31 Hollingsworth & Vose Company Absorbent and/or adsorptive filter media
US8882876B2 (en) 2012-06-20 2014-11-11 Hollingsworth & Vose Company Fiber webs including synthetic fibers
US9511330B2 (en) 2012-06-20 2016-12-06 Hollingsworth & Vose Company Fibrillated fibers for liquid filtration media
US10137392B2 (en) 2012-12-14 2018-11-27 Hollingsworth & Vose Company Fiber webs coated with fiber-containing resins
AT514137A1 (en) 2013-04-05 2014-10-15 Lenzing Akiengesellschaft Polysaccharide fiber and process for its preparation
AT514136A1 (en) 2013-04-05 2014-10-15 Lenzing Akiengesellschaft Polysaccharide fiber with increased fibrillation capability and process for its preparation
AT514123B1 (en) 2013-04-10 2015-06-15 Lenzing Akiengesellschaft Polysaccharide film and process for its preparation
AT514468A1 (en) 2013-06-17 2015-01-15 Lenzing Akiengesellschaft High absorbency polysaccharide fiber and its use
AT514474B1 (en) 2013-06-18 2016-02-15 Chemiefaser Lenzing Ag Polysaccharide fiber and process for its preparation
US20150184338A1 (en) 2013-12-31 2015-07-02 Weyerhaeuser Nr Company Treated kraft pulp compositions and methods of making the same
US9926665B2 (en) 2016-02-25 2018-03-27 International Paper Company Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology
US20190024307A1 (en) * 2016-03-07 2019-01-24 Veritas Tekstil Konfeksiyon Pazarlama Sanayi Ve Ticaret Anonim Sirketi Water-soluble regenerated fiber production from calluna vulgaris plant species
EP3536851A1 (en) * 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Lyocell fiber with increased tendency to fibrillate
FI129226B (en) 2018-05-15 2021-09-30 Metsae Fibre Oy Method for the pretreatment of paper pulp
US11352748B2 (en) 2018-07-31 2022-06-07 International Paper Company Crosslinked pulps, cellulose ether products made therefrom; and related methods of making pulps and cellulose ether products

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Publication number Priority date Publication date Assignee Title
CA2115881C (en) * 1993-02-25 2000-05-23 Michael G. Paice Non-chlorine bleaching of kraft pulp
US6210801B1 (en) * 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
US6605350B1 (en) * 1996-08-23 2003-08-12 Weyerhaeuser Company Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same
AU9778398A (en) * 1997-10-01 1999-04-23 Weyerhaeuser Company Cellulose treatment and the resulting product
US6824646B2 (en) * 1999-03-23 2004-11-30 Oji Paper Co., Ltd. Process for oxygen bleaching and enzyme treating lignocellulosic pulp with liquid treatment and recovery
CN100346030C (en) * 2002-03-06 2007-10-31 埃欧金生物制品公司 Xylanase treatment of chemical pulp
US6833187B2 (en) * 2003-04-16 2004-12-21 Weyerhaeuser Company Unbleached pulp for lyocell products

Also Published As

Publication number Publication date
WO2009088635A2 (en) 2009-07-16
US20090165969A1 (en) 2009-07-02
WO2009088635A3 (en) 2009-09-03
AR069928A1 (en) 2010-03-03

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