EP1229165A1 - Nappe ininflammable contenant des fibres cellulosiques régénérées - Google Patents

Nappe ininflammable contenant des fibres cellulosiques régénérées Download PDF

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Publication number
EP1229165A1
EP1229165A1 EP02000887A EP02000887A EP1229165A1 EP 1229165 A1 EP1229165 A1 EP 1229165A1 EP 02000887 A EP02000887 A EP 02000887A EP 02000887 A EP02000887 A EP 02000887A EP 1229165 A1 EP1229165 A1 EP 1229165A1
Authority
EP
European Patent Office
Prior art keywords
fleece
flame retardant
fibers
regenerated cellulose
retardant
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
EP02000887A
Other languages
German (de)
English (en)
Other versions
EP1229165B1 (fr
Inventor
Horst Dipl.-Ing. Blum
Stefan Dipl.-Chem. Sick
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.)
PAPCEL Papier und Cellulose Technologie- und Handelsgesell mbH
Schoeller und Hoesch GmbH
Original Assignee
PAPCEL Papier und Cellulose Technologie- und Handelsgesell mbH
Schoeller und Hoesch 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 PAPCEL Papier und Cellulose Technologie- und Handelsgesell mbH, Schoeller und Hoesch GmbH filed Critical PAPCEL Papier und Cellulose Technologie- und Handelsgesell mbH
Publication of EP1229165A1 publication Critical patent/EP1229165A1/fr
Application granted granted Critical
Publication of EP1229165B1 publication Critical patent/EP1229165B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/34—Ignifugeants
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/07—Nitrogen-containing compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/10—Phosphorus-containing compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds

Definitions

  • the present invention relates to a flame-retardant fleece which Regenerated cellulose fibers, and a method for producing thereof.
  • Cryogenic tank systems for example storage tanks or transport tanks for temperature sensitive substances such as liquid Gases, usually consist of an outer tank and an inner tank, with the inner tank so in the outer Tank is inserted between the outer and the inner Tank remains a space that has a good insulation effect can be evacuated.
  • the outer and the inner tank usually surrounded with insulating materials.
  • the inner one is known from WO-A-97/17149 Equip the tank with cryogenic insulation it is a composite structure made of a glass fiber fleece or a glass fiber fabric and an aluminum foil.
  • the object of the present invention is therefore a refractory Specify insulation material for a cryogenic tank system, that is free from the above disadvantages.
  • the present invention relates to a flame-retardant Nonwoven comprising regenerated cellulose fibers on the one Flame retardant is applied, the fleece thereby is characterized by an LOI (limiting oxygen index) of at least 65.
  • LOI limiting oxygen index
  • the present invention also relates to a method for the production of a refractory fleece, the regenerated cellulose fibers with a LOI value of at least 65 by applying a slurry of regenerated cellulose fibers comprehensive fibers with a flame retardant a paper machine.
  • fibers we mean according to the invention non-woven, sheet-like materials made up of substantial proportions synthetic fibers exist.
  • Nonwoven according to the invention used fibers to grindable and fibrillatable regenerated cellulose fibers, if necessary 0.1 to 90%, based on the paper weight, natural and / or may contain synthetic long fibers.
  • the long fibers can be, for example, such Softwood cellulose, from sisal, kenaf, jute, hemp, Flax, abaca and synthetic fibers such as Trade polyester and polyethylene fibers.
  • regenerated cellulose fibers used according to the invention it is preferably the on the relevant Lyocell fibers known in the art.
  • Lyocell fibers The production of the Lyocell fibers is on the relevant Known in the field. Usually pulp is used in one aqueous amine oxide solution. The resulting solution is then converted into cellulose in dilute amine oxide Extruded fiber form, the fibers obtained after a If necessary, wash one tailored to end use Can be subjected to finishing treatment.
  • fibers with a freeness of 5 to 75 ° SR (the degree of grinding is in accordance with the relevant Known in the art with a grinding degree tester Schopper-Riegler performed), expediently with a Degree of grinding from 30 to 60 ° SR and preferably with a degree of grinding from 45 to 55 ° SR used.
  • the flame retardants used according to the invention act it is usually phosphorus and / or nitrogenous Compounds used individually or in combinations can be.
  • Examples of usable phosphorus compounds are organic Phosphorus compounds such as cyclic and acyclic phosphonate and Diphosphonate esters, alkylphosphonic acids and their salts, chlorinated phosphorus compounds, such as chlorinated phosphonate esters or chlorinated phosphate esters, organic phosphorus nitrogen compounds, such as alkylamine phosphate salts, aminophosphonic acids and their salts, or inorganic phosphorus compounds, such as ammonium salts of phosphates and polyphosphates, e.g. Ammonium dihydrogen phosphate or sodium dihydrogen phosphate, Pyrophosphoric acids or any combination of the connections above.
  • organic Phosphorus compounds such as cyclic and acyclic phosphonate and Diphosphonate esters, alkylphosphonic acids and their salts
  • chlorinated phosphorus compounds such as chlorinated phosphonate esters or chlorinated phosphate esters
  • organic phosphorus nitrogen compounds such as alkylamine phosphat
  • nitrogen compounds are urea, thiourea, Cyanamides, dicyanamides, methylolcyanamides, cyanates such as Ammonium cyanate, thiocyanates and melamines.
  • aqueous solutions are preferably more inorganic Dihydrogenphosphate in combination with alkylphosphonic acids or cyanamides used.
  • the proportion of the flame retardant applied is according to the invention usually at least 40% by weight, based on the fiber weight, advantageously at least 100% by weight, and preferably at least 150% by weight of flame retardant.
  • the fleece according to the invention for example at a basis weight of 27 g / m 2 after loading, usually has a breaking force in the longitudinal direction of more than 3.2 N / 15 mm, advantageously of more than 5.0 N / 15 mm and preferably of more than 6.5 N / 15 mm.
  • the fleece according to the invention for example at a basis weight of 27 g / m 2 after loading, usually has a breaking force in the transverse direction of more than 1.0 N / 15 mm, advantageously of more than 2.0 N / 15 mm and preferably of more than 2.5 N / 15 mm.
  • the breaking force in the longitudinal or transverse direction was inventively determined according to DIN EN ISO 1924/2.
  • the fleece according to the invention in a preferred embodiment, for example at a basis weight of 27 g / m 2 after loading, usually has an elongation at break in the longitudinal direction of more than 0.5%, expediently more than 0.7% and preferably more than 0.8 %.
  • the nonwoven according to the invention also typically has an elongation at break in the transverse direction of more than 0.5%, expediently more than 0.9% and preferably more than 1, for example at a basis weight of 27 g / m 2 after exposure. 2%.
  • the elongation at break in the longitudinal or transverse direction was determined according to the invention in accordance with DIN EN ISO 1924/2.
  • the flame retardancy of the nonwovens according to the invention was according to the invention by specifying the LOI value (limiting oxygen index) according to ASTM-D-2863.
  • Conveniently owns the fleece according to the invention has a LOI value of more than 75, and preferably a LOI greater than 85.
  • the fleece according to the invention also has a high air permeability of more than 2500 l / m 2 s, preferably of more than 2800 l / m 2 s.
  • the air permeability was determined according to the invention by acoustic measurement in accordance with DIN EN ISO 9237.
  • the gap between the inner and outer tank in one with the invention Fleece produced as cryogenic insulation cryogenic tank system and the cryogenic insulating layer itself easily evacuate, since the fleece according to the invention is only a small one Shows moisture absorption.
  • the fleece according to the invention expediently has a basis weight of 8 to 50 g / m 2 and preferably 9 to 30 g / m 2, without including the additional components to be acted on, including flame retardants.
  • the basis weight was according to the invention in accordance with DIN ISO 536 determined.
  • Process is used as a paper machine, an inclined screen paper machine, as it corresponds to the state of the art and in the attached figure is used.
  • a defoamer can be added to the fiber mixture become.
  • the defoamer is used in an amount of 0.001 to 5 vol .-%, based on the fiber mixture, also used.
  • the defoamer to be used is usually defoamers known in the relevant field, for example, to make aqueous emulsions more aliphatic Hydroxy compounds.
  • fibers with a Freeness from 5 to 75 ° SR expediently with a freeness of 30 to 60 ° SR and preferably used with a freeness of 45 to 55 ° SR.
  • cellulose regenerated fibers are usually used and optionally long fibers natural and / or a fiber suspension made of synthetic origin, via a so-called headbox of the paper machine is fed.
  • This essentially has a rotating one Sieve, which has a number of drainage chambers is led away.
  • Suitable pipelines and pumping devices are used Suspension is passed onto the sieve through the first dewatering chambers, whereby through the chambers and the drainage pipe Water is sucked off. This forms on the moving sieve a layer of fibers.
  • the fleece obtained is then rolled up on a roll.
  • the amount of fiber applied to the moving sieve via the headbox is adjusted so that the nonwoven has a weight per unit area of 9 g / m 2 without loading.
  • the following properties of the fleece according to the invention were measured: Basis weight (thus exposure to 144% by weight, based on the fiber weight) 22 g / m 2 Breaking strength along 7.40 N / 15mm 2 Breaking force across 2.85 N / 15mm 2 Elongation at break 0.9% Elongation at break across 1.4% Air permeability (Akustron) 2820 l / m 2 s LOI (limiting oxygen index) 81

Landscapes

  • Nonwoven Fabrics (AREA)
  • Artificial Filaments (AREA)
  • Fats And Perfumes (AREA)
  • Woven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP20020000887 2001-01-31 2002-01-15 Nappe ininflammable contenant des fibres cellulosiques régénérées Expired - Lifetime EP1229165B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10104277 2001-01-31
DE2001104277 DE10104277B4 (de) 2001-01-31 2001-01-31 Flammfestes Vlies, das Celluloseregeneratfasern umfasst

Publications (2)

Publication Number Publication Date
EP1229165A1 true EP1229165A1 (fr) 2002-08-07
EP1229165B1 EP1229165B1 (fr) 2006-03-29

Family

ID=7672316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020000887 Expired - Lifetime EP1229165B1 (fr) 2001-01-31 2002-01-15 Nappe ininflammable contenant des fibres cellulosiques régénérées

Country Status (3)

Country Link
EP (1) EP1229165B1 (fr)
DE (2) DE10104277B4 (fr)
ES (1) ES2177481T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038133A1 (fr) * 2003-10-08 2005-04-28 Ciba Specialty Chemicals Holding Inc. Additif permettant de diminuer le peluchage et le poussierage du papier
DE102004015356A1 (de) * 2004-03-30 2005-10-20 Clariant Gmbh Phosphorhaltige Flammschutzmittelzusammensetzung für cellulosehaltige Materialien

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2045118A1 (de) * 1969-09-12 1971-06-24 Mitsubishi Rayon Co Ltd , Tokio Verfahren zum Herstellen eines unge webten Erzeugnisses aus Viskosefasern
US3819518A (en) * 1972-07-31 1974-06-25 Apex Chem Co Inc Scorch-resistant water-soluble flame-retardants for cellulose
JPS4994903A (fr) * 1973-01-23 1974-09-09
JPS5053428A (fr) * 1973-09-13 1975-05-12
JPS5192305A (ja) * 1975-02-04 1976-08-13 Seruroosukeizairyono tainetsunannenkashorihoho
GB2325248A (en) * 1997-05-15 1998-11-18 Crompton J R Plc Cigarette filter paper comprising synthetic polymer and lyocell fibres

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9416616D0 (en) * 1994-08-17 1994-10-12 Courtaulds Fibres Holdings Ltd Cellulosic textile materials
US5749537A (en) * 1995-11-07 1998-05-12 Lydall, Inc. Method of wrapping cryogenic insulation around an inner cryogenic tank

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2045118A1 (de) * 1969-09-12 1971-06-24 Mitsubishi Rayon Co Ltd , Tokio Verfahren zum Herstellen eines unge webten Erzeugnisses aus Viskosefasern
US3819518A (en) * 1972-07-31 1974-06-25 Apex Chem Co Inc Scorch-resistant water-soluble flame-retardants for cellulose
JPS4994903A (fr) * 1973-01-23 1974-09-09
JPS5053428A (fr) * 1973-09-13 1975-05-12
JPS5192305A (ja) * 1975-02-04 1976-08-13 Seruroosukeizairyono tainetsunannenkashorihoho
GB2325248A (en) * 1997-05-15 1998-11-18 Crompton J R Plc Cigarette filter paper comprising synthetic polymer and lyocell fibres

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
DATABASE PAPERCHEM [online] THE INSTITUTE OF PAPER SCIENCE AND TECHNOLOGY, ATLANTA, GA, US; MIYAMOTO, H. ET AL: "PAPER SUBSTITUTES", XP002192549, retrieved from DIALOG *
DATABASE PAPERCHEM [online] THE INSTITUTE OF PAPER SCIENCE AND TECHNOLOGY, ATLANTA, GA, US; MOSIO-MOSIEWSKI, J: "Decreasing the Combustibility of Paper", XP002192550, retrieved from DIALOG *
DATABASE WPI Section Ch Week 197544, Derwent World Patents Index; Class A17, AN 1975-73155W, XP002192551 *
DATABASE WPI Section Ch Week 197639, Derwent World Patents Index; Class A11, AN 1976-73097X, XP002192552 *
POPESCU F N ET AL: "PHOSPHORIC ACID-UREA POLYCONDENSATE FIREPROOFING AGENT FOR PAPER SUBSTITUTES", ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, THE INSTITUTE OF PAPER CHEMISTRY-LIBRARY. APPLETON, US, vol. 59, no. 6, 1 December 1988 (1988-12-01), pages 719, XP000031610 *
PRZEM. CHEM. 64, NO. 8: 381-383 (1985). [POL.] *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038133A1 (fr) * 2003-10-08 2005-04-28 Ciba Specialty Chemicals Holding Inc. Additif permettant de diminuer le peluchage et le poussierage du papier
US7491294B2 (en) 2003-10-08 2009-02-17 Ciba Specialty Chemicals Corporation Compositions for reducing paper linting and dusting
DE102004015356A1 (de) * 2004-03-30 2005-10-20 Clariant Gmbh Phosphorhaltige Flammschutzmittelzusammensetzung für cellulosehaltige Materialien
US7622517B2 (en) 2004-03-30 2009-11-24 Clariant Produkte (Deutschland) Gmbh Phosphorus-containing flame retardant formulation for cellulose-containing moldings

Also Published As

Publication number Publication date
DE50206179D1 (de) 2006-05-18
DE10104277A1 (de) 2002-08-14
ES2177481T1 (es) 2002-12-16
ES2177481T3 (es) 2006-09-16
DE10104277B4 (de) 2008-02-21
EP1229165B1 (fr) 2006-03-29

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