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WO2002000732A1 - Utilisation d'alkylpolyglucosides en tant qu'agents auxiliaires de filtration dans le procede de viscose - Google Patents

Utilisation d'alkylpolyglucosides en tant qu'agents auxiliaires de filtration dans le procede de viscose Download PDF

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Publication number
WO2002000732A1
WO2002000732A1 PCT/EP2001/006340 EP0106340W WO0200732A1 WO 2002000732 A1 WO2002000732 A1 WO 2002000732A1 EP 0106340 W EP0106340 W EP 0106340W WO 0200732 A1 WO0200732 A1 WO 0200732A1
Authority
WO
WIPO (PCT)
Prior art keywords
viscose
filtration aid
cellulose
filtration
alkyl
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.)
Ceased
Application number
PCT/EP2001/006340
Other languages
German (de)
English (en)
Inventor
Jochen Houben
Michael Schuemann
Heino Nabereit
Karl Winck
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.)
Stockhausen GmbH and Co KG
Original Assignee
Stockhausen GmbH and Co KG
Chemische Fabrik Stockhausen 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 Stockhausen GmbH and Co KG, Chemische Fabrik Stockhausen GmbH filed Critical Stockhausen GmbH and Co KG
Priority to AU2001262341A priority Critical patent/AU2001262341A1/en
Publication of WO2002000732A1 publication Critical patent/WO2002000732A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B9/00—Cellulose xanthate; Viscose

Definitions

  • alkyl polyglucosides as filtration aids in
  • the present invention relates to a filter aid for viscose containing alkyl polyglucosides.
  • the present invention further relates to a process for the production of viscose, in which the filtration aids according to the invention are used.
  • the present invention relates to a spinnable viscose obtainable by the process according to the invention and to a cellulose which each contain alkyl polyglucosides.
  • the present invention also relates to cellulose fibers which are obtained by spinning the viscose according to the invention.
  • cellulose fibers by the viscose process has been well known for a long time and is described, for example, by Götze, chemical fibers according to the viscose process, 3rd edition, Springer-Verlag, Berlin (1967).
  • a specially produced cellulose is converted under certain conditions with caustic soda to alkali cellulose.
  • the alkali cellulose is then fiberized and subjected to a preliminary stage during which the cellulose is depolymerized.
  • the alkali cellulose is sulfided with carbon disulphide and dissolved as a cellulose xanthate by the addition of a dissolving solution, the so-called viscose being obtained.
  • the viscose is filtered to remove solid components and vented before it can be spun.
  • Filtration of the viscose before spinning is of central importance in the viscose process, since if the solid components are not adequately separated from the viscose, disturbances can occur during the spinning process.
  • Contaminants include both incompletely reacted constituents of the pulp, in particular undissolved but also swollen cellulose fiber fragments, impurities from the pulp or reaction by-products, for example metal sulfides. The type and extent of the impurities depend on the quality of the pulp used and the process parameters selected.
  • filtration aids are usually added to it. These filtration aids optimize the course of individual reaction steps, thereby increasing the quality and filterability of the viscose.
  • the filtration aids are fed to the process before filtration, preferably during sulfidation.
  • Filtration aids from the substance classes of the ethoxylated fatty amines, sulfated fatty acids, fatty alcohol ethers, polyethylene glycols, ethoxylated alkylphenols and sulfonated oils are known from the prior art.
  • surface-active substances of a surfactant nature are disclosed as filtration aids. As described in Elöd, Götze and Rauch, Zell Wool Chemical Fibers 321, 626, 680, 751 and 818 (1955), these substances result in more uniform alkalization and pre-ripening, faster and more uniform sulfidation and the formation of a more rapidly soluble xanthate, which results in a better filterable viscose is obtained.
  • EP 0 074 012 A2 discloses high molecular weight alkali polysaccharide xanthates as filtration aids, the use of which can reduce the usual 3 to 4 filtration stages by 50%.
  • a disadvantage of the filtration aids for the production of cellulose fibers according to the prior art is the low environmental compatibility, especially with regard to their biodegradability but also, at least with some substance classes, with regard to the toxic effect.
  • the object is achieved according to the invention by providing filtration aids for viscose which contain at least one alkyl polyglucoside.
  • Filtration aids within the meaning of the present invention are substances which are used in the viscose process up to the process step of the first viscose filtration in order to enable raw materials to be saved in the fiber production process with at least the same filterability of the viscose and / or to improve the filterability of the viscose.
  • viscose is a solution of cellulose xanthate in water or dilute alkali.
  • Alkyl polyglucosides are acetals consisting of an alcohol and at least two glycosidically linked glucose units according to the general formula:
  • R is an alkyl radical and (G) n glucose with a degree of oligomerization of n.
  • R preferably has a chain length of 6 to 18 carbon atoms, particularly preferably a chain length of 8 to 12 carbon atoms.
  • R is preferably unbranched.
  • n> 1 where n can also assume fractional numerical values.
  • the value for n is preferably in the range from 1 to 3, particularly preferably in the range from 1.2 to 1.6.
  • alkyl polyglucosides The preparation of alkyl polyglucosides is known and is described, for example, in EP 362671 (A) and in US Pat. No. 3,839,318, which are hereby introduced as a reference and are therefore considered part of the disclosure.
  • the filtration aid according to the invention contains an alkyl polyglucoside or a mixture of various alkyl polyglucosides.
  • the filtration aid can also contain substances which according to the prior art Technique used as filtration aids, preferably ethoxylated fatty amines, sulfated fatty acids, fatty alcohol ethers, in particular fatty alcohol polyalkylene glycol ethers, polyethylene glycols, ethoxylated alkylphenols or sulfonated oils.
  • substances which according to the prior art Technique used as filtration aids preferably ethoxylated fatty amines, sulfated fatty acids, fatty alcohol ethers, in particular fatty alcohol polyalkylene glycol ethers, polyethylene glycols, ethoxylated alkylphenols or sulfonated oils.
  • preference is given to using exclusively alkyl polyglucosides.
  • the filtration aid is preferably used in an amount of 0.01 to 2% by weight, preferably in an amount of 0.05 to 0.2% by weight, based in each case on the amount of dissolved ⁇ -cellulose, regardless of this whether the filtration aid is composed of an alkyl polyglucoside or a mixture of different alkyl polyglucosides or an alkyl polyglucoside or a mixture of different alkyl polyglucosides in a mixture with a filtration aid according to the prior art.
  • the filtration aids are used undiluted or as an aqueous dispersion, preferably as an aqueous solution and particularly preferably as an aqueous alkaline solution.
  • the filtration aids according to the invention are distinguished by better environmental compatibility, preferably in the sense of faster biodegradability, and better biological compatibility, such as less skin irritation.
  • Another object of the present invention is a method for producing spinnable viscose, in which at least one alkyl polyglucoside is used as a filtration aid.
  • n> 1 and R is preferably an alkyl radical having 6 to 18 carbon atoms, particularly preferably having 8 to 12 carbon atoms. R is preferably unbranched.
  • n> 1 where n is also a fractional number can accept.
  • the value for n is preferably in the range from 1 to 3, particularly preferably in the range from 1.2 to 1.6.
  • alkyl polyglucoside alone or a mixture of different alkyl polyglucosides can be used as the filtration aid.
  • the alkyl polyglucoside or the mixture of various alkyl polyglucosides can, however, also be used in a mixture with other substances which are used as filtration aids according to the prior art, preferably ethoxylated fatty amines, sulfated fatty acids, fatty alcohol ethers, in particular fatty alcohol polyalkylene glycol ethers, polyethylene glycols, ethoxylated alkylphenols or sulfonated oils , However, preference is given to using exclusively alkyl polyglucosides.
  • the filtration aid is used in the process according to the invention in an amount of 0.01 to 2% by weight, preferably in an amount of 0.05 to 0.2% by weight, based in each case on the amount of dissolved ⁇ -cellulose, and regardless of whether the filtration aid is composed of an alkyl polyglucoside or a mixture of several alkyl polyglucosides or an alkyl polyglucoside or a mixture of different alkyl polyglucosides in a mixture with a filtration aid according to the prior art.
  • the filtration aids are used undiluted or as an aqueous dispersion, preferably as an aqueous solution and particularly preferably as an aqueous alkaline solution.
  • the filtration aids can be added to the process in each process step before the viscose is filtered.
  • the filtration aids can also be added at several points in the process before the filtration.
  • the filtration aids are introduced directly into the process with the cellulose.
  • cellulose denotes a material consisting mainly of cellulose, as described in Römpp, 8th edition, page 4686 (1988) is. All cellulose suitable for the production of cellulose fibers, in particular also electron-treated cellulose, can be used in the process according to the invention.
  • the filtration aids are introduced into the process with the solvent.
  • the filtration aids of the alkali cellulose are particularly preferably added before, during or after the defibration.
  • alkali cellulose is understood to mean the reaction product of cellulose and sodium hydroxide solution.
  • cellulose fibers, filaments and flat structures known to the person skilled in the art, for example viscose staple fibers, viscose staple fibers with increased strength, high-wet-modulus (HWM) fibers, textile filaments, technical filaments and packaging materials can be produced from flat structures.
  • HWM high-wet-modulus
  • the process according to the invention is distinguished from the processes according to the prior art in that filtration aids with better environmental compatibility and better biological compatibility are used. Furthermore, the filterability of the viscose is increased by the method according to the invention. In addition, the inventive method can save significant amounts of raw materials compared to the previously known methods.
  • Another object of the present invention is a viscose obtainable by the process according to the invention.
  • the viscose according to the invention has better environmental compatibility than the viscose according to the prior art due to the corresponding properties of the filtration aid contained. Furthermore, the viscose according to the invention is easier to filter compared to viscose according to the prior art. Furthermore, the viscose according to the invention has the advantage over the previously disclosed viscoses that at least one during spinning same spinning security, usually a significantly improved spinning security is achieved.
  • Another object of the present invention is a pulp which contains at least one alkyl polyglucoside as a filtration aid.
  • Alkyl polyglucosides of formula 1 are preferred
  • n> 1 and R is an alkyl radical with 6 to 18 carbon atoms, particularly preferably alkyl polyglucosides, in which n> 1 and R is an alkyl radical with 8 to 12 carbon atoms.
  • R is preferably unbranched.
  • n> 1 where n can also assume fractional numerical values.
  • the value for n is preferably in the range from 1 to 3, particularly preferably in the range from 1.2 to 1.6.
  • the pulp according to the invention contains at least one alkyl polyglucoside, but can additionally contain other substances which are used as filtration aids according to the prior art, preferably ethoxylated fatty amines, sulfated fatty acids, fatty alcohol ethers, in particular
  • Fatty alcohol polyalkylene glycol ethers polyethylene glycols, oxyethylated alkylphenols or sulfonated oils. However, preference is given to using exclusively alkyl polyglucosides.
  • the pulp contains a filtration aid in an amount of 0.05 to 5% by weight, preferably in an amount of 0.5 to 3% by weight, based in each case on the amount of dissolved ⁇ -cellulose, regardless of whether an alkyl polyglucoside, a mixture of different alkyl polyglucosides or an alkyl polyglucoside or a mixture of different alkyl polyglucosides is used in a mixture with a filtration aid according to the prior art.
  • the present invention further relates to cellulose fibers which are produced by spinning the viscose described above.
  • the cellulose fibers according to the invention have at least the same, but for the most part better and, as a rule, significantly better textile-physical properties than fibers which have been produced by the previously disclosed processes.
  • bottle viscoses were made from the following raw materials:
  • Viscose composition ⁇ -cellulose 9.8% by weight (based on viscose) CS 2 / ⁇ -cellulose 36% NaOH 6.7% by weight Addition of filtration aids 0.1% by weight (based on ⁇ -cellulose)

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)

Abstract

La présente invention concerne un agent auxiliaire de filtration contenant des alkylpolyglucosides destinés à des viscoses pour la fabrication de fibres de cellulose selon le procédé de viscose. La présente invention concerne également un procédé de fabrication de viscoses au cours duquel 0,01 à 2 % en poids des agents auxiliaires de filtration selon l'invention sont additionnés. La présente invention concerne également une viscose filable et une substance cellulaire contenant chacune des alkylpolyglucosides. La présente invention concerne également des fibres de cellulose obtenues par filature de la viscose selon l'invention.
PCT/EP2001/006340 2000-06-29 2001-05-25 Utilisation d'alkylpolyglucosides en tant qu'agents auxiliaires de filtration dans le procede de viscose Ceased WO2002000732A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001262341A AU2001262341A1 (en) 2000-06-29 2001-05-31 Use of alkylpolyglucosides as filtering agents in the viscose method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000130806 DE10030806A1 (de) 2000-06-29 2000-06-29 Verwendung von Alkylpolyglucosiden als Filtrationshilfsmittel im Viskoseverfahren
DE10030806.6 2000-06-29

Publications (1)

Publication Number Publication Date
WO2002000732A1 true WO2002000732A1 (fr) 2002-01-03

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AU (1) AU2001262341A1 (fr)
DE (1) DE10030806A1 (fr)
WO (1) WO2002000732A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113474375A (zh) * 2019-02-22 2021-10-01 巴斯夫欧洲公司 生产粘胶溶液的方法和由此制成的粘胶溶液及生产粘胶纤维的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397405B (zh) * 2013-07-24 2015-07-01 宜宾海丝特纤维有限责任公司 一种粘胶纤维生产中压榨液电渗析碱回收的预处理工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355448A (en) * 1964-09-10 1967-11-28 Weyerhaeuser Co Method of improving viscose filtration by the addition of a surface active agent
DE1285663B (de) * 1964-01-24 1968-12-19 Akad Wissenschaften Ddr Herstellung von Regeneratcellulosefaeden und -fasern durch Verspinnen von Viskose inGegenwart eines Modifizierungsmittels
US3839318A (en) * 1970-09-27 1974-10-01 Rohm & Haas Process for preparation of alkyl glucosides and alkyl oligosaccharides
EP0124935A1 (fr) * 1983-05-05 1984-11-14 Berol Kemi Ab Procédé pour améliorer la filtrabilité dans une solution viscose
WO1998047924A1 (fr) * 1997-04-18 1998-10-29 Akzo Nobel Surface Chemistry Ab Procede permettant de produire une solution de viscose

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133920A1 (de) * 1981-08-27 1983-03-17 Hoechst Ag, 6000 Frankfurt "verfahren zur verbesserung der viskosefiltration"
DE3833780A1 (de) * 1988-10-05 1990-04-12 Henkel Kgaa Verfahren zur direkten herstellung von alkylglykosiden

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285663B (de) * 1964-01-24 1968-12-19 Akad Wissenschaften Ddr Herstellung von Regeneratcellulosefaeden und -fasern durch Verspinnen von Viskose inGegenwart eines Modifizierungsmittels
US3355448A (en) * 1964-09-10 1967-11-28 Weyerhaeuser Co Method of improving viscose filtration by the addition of a surface active agent
US3839318A (en) * 1970-09-27 1974-10-01 Rohm & Haas Process for preparation of alkyl glucosides and alkyl oligosaccharides
EP0124935A1 (fr) * 1983-05-05 1984-11-14 Berol Kemi Ab Procédé pour améliorer la filtrabilité dans une solution viscose
WO1998047924A1 (fr) * 1997-04-18 1998-10-29 Akzo Nobel Surface Chemistry Ab Procede permettant de produire une solution de viscose

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113474375A (zh) * 2019-02-22 2021-10-01 巴斯夫欧洲公司 生产粘胶溶液的方法和由此制成的粘胶溶液及生产粘胶纤维的方法
CN113474375B (zh) * 2019-02-22 2023-09-29 巴斯夫欧洲公司 生产粘胶溶液的方法和由此制成的粘胶溶液及生产粘胶纤维的方法
TWI845619B (zh) 2019-02-22 2024-06-21 德商巴斯夫歐洲公司 製造黏膠溶液之方法及由此製造之黏膠溶液以及製造黏膠纖維之方法

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AU2001262341A1 (en) 2002-01-08
DE10030806A1 (de) 2002-01-10

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