CA2452944A1 - Use of thinnings and other low specific gravity wood for lyocell products - Google Patents
Use of thinnings and other low specific gravity wood for lyocell products Download PDFInfo
- Publication number
- CA2452944A1 CA2452944A1 CA002452944A CA2452944A CA2452944A1 CA 2452944 A1 CA2452944 A1 CA 2452944A1 CA 002452944 A CA002452944 A CA 002452944A CA 2452944 A CA2452944 A CA 2452944A CA 2452944 A1 CA2452944 A1 CA 2452944A1
- Authority
- CA
- Canada
- Prior art keywords
- specific gravity
- low specific
- thinnings
- wood
- gravity wood
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
-
- 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
- D01D5/18—Formation of filaments, threads, or the like by means of rotating spinnerets
-
- 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
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
-
- 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
- Y10T428/2904—Staple length fiber
-
- 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
-
- 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
- Y10T428/2933—Coated or with bond, impregnation or core
-
- 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
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2965—Cellulosic
-
- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
Abstract
Low specific gravity wood can be used to make lyocell fibers. Low specific gravity wood has a specific gravity less than 0.41. The low specific gravity wood is either thinnings or juvenile wood. The low specific gravity wood can be used to make a pulp, wherein the pulp has a viscosity less than 32 cP, a copper number less than 2, a weighted average fiber length less than 2.7 mm, and a coarseness less than 23 mg/100m.
The pulp is used to produce a lyocell product.
The pulp is used to produce a lyocell product.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/336,393 US6686040B2 (en) | 1999-02-24 | 2003-01-02 | Use of thinnings and other low specific gravity wood for lyocell products |
US10/336,393 | 2003-01-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2452944A1 true CA2452944A1 (en) | 2004-07-02 |
CA2452944C CA2452944C (en) | 2006-11-28 |
Family
ID=32594796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2452944 Expired - Fee Related CA2452944C (en) | 2003-01-02 | 2003-12-12 | Use of thinnings and other low specific gravity wood for lyocell products |
Country Status (12)
Country | Link |
---|---|
US (1) | US6686040B2 (en) |
EP (1) | EP1441050B1 (en) |
JP (1) | JP3965153B2 (en) |
KR (1) | KR100564515B1 (en) |
CN (1) | CN100460594C (en) |
AT (1) | ATE384809T1 (en) |
BR (1) | BR0305991B1 (en) |
CA (1) | CA2452944C (en) |
DE (1) | DE60318810T2 (en) |
MX (1) | MXPA04000073A (en) |
TW (1) | TWI238861B (en) |
ZA (1) | ZA200309826B (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797113B2 (en) * | 1999-02-24 | 2004-09-28 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell pulps method |
US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
US9512563B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Surface treated modified cellulose from chemical kraft fiber and methods of making and using same |
US9511167B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
KR101797942B1 (en) | 2009-05-28 | 2017-11-15 | 게페 첼루로제 게엠베하 | Modified cellulose from chemical kraft fiber and methods of making and using the same |
EP2714987B1 (en) | 2011-05-23 | 2015-07-29 | GP Cellulose GmbH | Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same |
CN104302831A (en) | 2012-01-12 | 2015-01-21 | Gp纤维素股份有限公司 | Low viscosity kraft fiber having reduced yellowing properties and method of making and using same |
US9617686B2 (en) | 2012-04-18 | 2017-04-11 | Gp Cellulose Gmbh | Use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products |
US10151064B2 (en) | 2013-02-08 | 2018-12-11 | Gp Cellulose Gmbh | Softwood kraft fiber having an improved α-cellulose content and its use in the production of chemical cellulose products |
RU2671653C2 (en) | 2013-03-14 | 2018-11-06 | ДжиПи СЕЛЛЬЮЛОУС ГМБХ | Method for manufacturing high functional low-viscosity kraft fibers with use of acid bleaching sequence and fiber produced therewith |
CN105143547B (en) | 2013-03-15 | 2018-05-01 | Gp 纤维素股份有限公司 | With low viscosity kraft fibers for increasing carboxyl-content and production and preparation method thereof |
EP3541849B1 (en) | 2016-11-16 | 2023-11-15 | GP Cellulose GmbH | Modified cellulose from chemical fiber and methods of making and using the same |
TW201938591A (en) | 2018-03-06 | 2019-10-01 | 奧地利商蘭仁股份有限公司 | Dissolving pulp |
EP3536833A1 (en) | 2018-03-06 | 2019-09-11 | Lenzing Aktiengesellschaft | Lyocell fibres without mannan |
EP3536852A1 (en) | 2018-03-06 | 2019-09-11 | Lenzing Aktiengesellschaft | Pulp and lyocell fibre with adjustable degree of whiteness |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255071A (en) | 1963-10-25 | 1966-06-07 | Theodor N Kleinert | Process for production of alkali cellulose in the absence of an aqueous liquid phase |
US3586600A (en) | 1967-07-27 | 1971-06-22 | Improved Machinery Inc | Continuous digesting apparatus |
SE352120B (en) | 1969-02-17 | 1972-12-18 | Reinhall Rolf | |
SE335053B (en) | 1969-05-13 | 1971-05-10 | Mo Och Domsjoe Ab | |
US3632469A (en) | 1969-06-05 | 1972-01-04 | Ethyl Corp | Process for the manufacture of dissolving grade pulp |
US3785920A (en) | 1972-04-10 | 1974-01-15 | T Johansen | Method of treating raw cellulosic materials |
US4338158A (en) | 1976-04-09 | 1982-07-06 | Weyerhaeuser Company | Pulping in the presence of a protector |
US4295925A (en) | 1979-06-15 | 1981-10-20 | Weyerhaeuser Company | Treating pulp with oxygen |
US4298426A (en) | 1979-06-15 | 1981-11-03 | Weyerhaeuser Company | Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence |
US4295927A (en) | 1979-06-15 | 1981-10-20 | Weyerhaeuser Company | Method and apparatus for treating pulp with oxygen and storing the treated pulp |
US4295926A (en) | 1979-06-15 | 1981-10-20 | Weyerhaeuser Company | Method and apparatus for treating pulp with oxygen |
SE434284B (en) | 1980-05-07 | 1984-07-16 | Mo Och Domsjoe Ab | PROCEDURES FOR OXYGEN DELIGNIFICATION OF CHEMICAL CONSUMPED CELLULOSAMASSA TO WHICH AROMATIC DIAMINES ARE PROVIDED |
CA2071185C (en) | 1991-06-14 | 1995-02-07 | Jorge Luiz Colodette | Process for delignifying lignocellulosic pulp by means of oxygen |
GB9122318D0 (en) | 1991-10-21 | 1991-12-04 | Courtaulds Plc | Treatment of elongate members |
GB9412501D0 (en) | 1994-06-22 | 1994-08-10 | Courtaulds Fibres Holdings Ltd | Manufacture of fibre |
GB9412500D0 (en) | 1994-06-22 | 1994-08-10 | Courtaulds Fibres Holdings Ltd | Fibre manufacture |
FI102301B1 (en) | 1994-10-13 | 1998-11-13 | Ahlstrom Machinery Oy | Process for treating cellulose pulp |
CA2211223C (en) | 1995-02-17 | 2002-04-30 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
ZA961712B (en) | 1995-03-03 | 1996-09-06 | Akzo Nobel Nv | Centrifugal spinning process for spinnable solutions |
FR2735794B1 (en) | 1995-06-26 | 1997-09-19 | Elysees Balzac Financiere | PROCESS FOR THE PREPARATION OF A MIXTURE OF CELLULOSIC FIBERS AND MICROFIBERS |
FI105701B (en) | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Method and arrangement for treatment of pulp |
ATE186577T1 (en) | 1996-02-14 | 1999-11-15 | Akzo Nobel Nv | METHOD FOR PRODUCING CELLULOSE FIBERS AND FILAMENTS |
GB9614680D0 (en) | 1996-07-12 | 1996-09-04 | Courtaulds Fibres Holdings Ltd | Pumps |
CA2641972C (en) * | 1996-08-23 | 2012-11-13 | Weyerhaeuser Company | Lyocell fibers and process for their preparation |
US6331354B1 (en) * | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
US6221487B1 (en) * | 1996-08-23 | 2001-04-24 | The Weyerhauser Company | Lyocell fibers having enhanced CV properties |
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 |
US6306334B1 (en) * | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
US6210801B1 (en) | 1996-08-23 | 2001-04-03 | Weyerhaeuser Company | Lyocell fibers, and compositions for making same |
US6471727B2 (en) * | 1996-08-23 | 2002-10-29 | Weyerhaeuser Company | Lyocell fibers, and compositions for making the same |
DE69723582T2 (en) * | 1996-11-21 | 2004-05-13 | Toyo Boseki K.K. | REGENERATED CELLULOSE FIBERS AND METHOD FOR THEIR PRODUCTION |
WO1999016960A1 (en) | 1997-10-01 | 1999-04-08 | Weyerhaeuser Company | Cellulose treatment and the resulting product |
-
2003
- 2003-01-02 US US10/336,393 patent/US6686040B2/en not_active Expired - Lifetime
- 2003-12-12 CA CA 2452944 patent/CA2452944C/en not_active Expired - Fee Related
- 2003-12-17 AT AT03257943T patent/ATE384809T1/en not_active IP Right Cessation
- 2003-12-17 DE DE2003618810 patent/DE60318810T2/en not_active Expired - Fee Related
- 2003-12-17 EP EP03257943A patent/EP1441050B1/en not_active Expired - Lifetime
- 2003-12-18 ZA ZA200309826A patent/ZA200309826B/en unknown
- 2003-12-19 KR KR1020030093505A patent/KR100564515B1/en not_active IP Right Cessation
- 2003-12-24 TW TW92136706A patent/TWI238861B/en active
- 2003-12-26 JP JP2003433890A patent/JP3965153B2/en not_active Expired - Fee Related
- 2003-12-30 BR BR0305991A patent/BR0305991B1/en not_active IP Right Cessation
-
2004
- 2004-01-02 CN CNB2004100012382A patent/CN100460594C/en not_active Expired - Lifetime
- 2004-01-07 MX MXPA04000073A patent/MXPA04000073A/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
TW200424371A (en) | 2004-11-16 |
MXPA04000073A (en) | 2004-07-08 |
ATE384809T1 (en) | 2008-02-15 |
US20030186055A1 (en) | 2003-10-02 |
CN1517491A (en) | 2004-08-04 |
DE60318810T2 (en) | 2008-05-21 |
BR0305991A (en) | 2004-08-17 |
EP1441050A1 (en) | 2004-07-28 |
CA2452944C (en) | 2006-11-28 |
US6686040B2 (en) | 2004-02-03 |
JP3965153B2 (en) | 2007-08-29 |
DE60318810D1 (en) | 2008-03-13 |
BR0305991B1 (en) | 2013-11-26 |
KR20040062398A (en) | 2004-07-07 |
CN100460594C (en) | 2009-02-11 |
TWI238861B (en) | 2005-09-01 |
KR100564515B1 (en) | 2006-03-29 |
EP1441050B1 (en) | 2008-01-23 |
JP2004211281A (en) | 2004-07-29 |
ZA200309826B (en) | 2004-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2453276A1 (en) | Use of thinnings and other low specific gravity wood for lyocell pulps | |
CA2452944A1 (en) | Use of thinnings and other low specific gravity wood for lyocell products | |
PL1965669T3 (en) | Composition comprising oligosaccharides as soluble dietary fibres for use against muscle wasting | |
WO2002069843A3 (en) | Absorbent article having an ideal core distribution and method of preparing same | |
WO2004103412A3 (en) | Superabsorbent cellulosic fiber and method of making same | |
CA2335563A1 (en) | Wound dressings and materials suitable for use therein | |
MX2009004095A (en) | Cut resistant yarn, a process for producing the yarn and products containing the yarn. | |
DE60122169D1 (en) | ALKALINE PULP WITH A LOW AVERAGE POLYMERIZATION LEVEL AND METHOD FOR THE PRODUCTION THEREOF | |
WO2010033536A3 (en) | Food wrap basesheet with regenerated cellulose microfiber | |
AU2002213977A1 (en) | Novel anticholinergics, method for the production thereof and use thereof as medicaments | |
CA2514603A1 (en) | Unitary fibrous structure comprising cellulosic and synthetic fibers and process for making same | |
WO2005072651A3 (en) | Medical devices comprising ceramic fibres | |
HK1071173A1 (en) | Bicomponent fibers with high wicking rate | |
WO2008075219A3 (en) | Absorbent fiber with a low absorbent capacity and slow absorption rate | |
CA2453246A1 (en) | Use of thinnings and other low specific gravity wood for lyocell products method | |
ZA200205443B (en) | Method for using hydrophobically associative polymers is preparing cellulosic fiber compositions, and cellulosic fiber compositions incorporating the hydrophobically associative polymers. | |
CA2333008A1 (en) | New heterocyclically substituted amides, their production and their use | |
WO2004022823A3 (en) | Articles comprising fibres and/or fibrids, fibres and fibrids and production method of same | |
CA2279300A1 (en) | Polyesteramides from cyclic monomers and surgical articles made therefrom | |
ZA200309829B (en) | Use of thinnings and other low specific gravity wood for lyocell pulps method. | |
AU2002213030A1 (en) | Stretchable polymeric fibers and articles produced therefrom | |
CA2074383A1 (en) | Composite fiber containing inorganic fine powder | |
SI1268522T1 (en) | Novel lhrh-antagonists, production and use thereof as medicament | |
EP1518823A4 (en) | Metal oxide nanotube and process for production thereof | |
WO2006086386A3 (en) | Glass fiber filtration media with at least two different fiber diameters |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20210831 |
|
MKLA | Lapsed |
Effective date: 20191212 |