EP0914513B1 - Process for providing fibres or nonwovens with a hydrophilic coating - Google Patents

Process for providing fibres or nonwovens with a hydrophilic coating Download PDF

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Publication number
EP0914513B1
EP0914513B1 EP97931816A EP97931816A EP0914513B1 EP 0914513 B1 EP0914513 B1 EP 0914513B1 EP 97931816 A EP97931816 A EP 97931816A EP 97931816 A EP97931816 A EP 97931816A EP 0914513 B1 EP0914513 B1 EP 0914513B1
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EP
European Patent Office
Prior art keywords
weight
nonwovens
fibers
carbon atoms
finish
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Expired - Lifetime
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EP97931816A
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German (de)
French (fr)
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EP0914513A1 (en
Inventor
Raymond Mathis
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BASF Personal Care and Nutrition GmbH
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Cognis Deutschland GmbH and Co KG
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Publication of EP0914513A1 publication Critical patent/EP0914513A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D06M13/148—Polyalcohols, e.g. glycerol or glucose
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/46—Compounds containing quaternary nitrogen atoms
    • D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • 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
    • Y10T428/2971—Impregnation
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting

Definitions

  • the present application relates to a method for the hydrophilic finishing of Fibers that contain exclusively or predominantly polyolefins or polyester of nonwovens containing polyolefin or polyester fibers and fibers or Nonwovens that are made hydrophilic by this process.
  • the hydrophilic finish of the fiber remains as long as possible without the water permeability of the nonwoven fabric is reduced. If such nonwovens are processed, for example, in diapers, can be used several times without leaking. In this way the wearing time of the diapers is increased and that caused by used diapers Waste decreased.
  • No. 5,045,387 describes, for example, an agent for the hydrophilic finishing of polyolefin fibers, which contains a mixture of an alkoxylated ricinoleic acid derivative, a hydrogenated ricinoleic acid derivative, a C 18 fatty acid and a polyalkoxylated polymethylsiloxane.
  • EP 372 890 B1 discloses fibers which comprise polyolefins or polyesters and have been treated with an agent which comprises a fatty acid diethanolamide, a polyether-modified silicone, a sorbitan fatty acid ester and a metal salt of an alkyl sulfonate. The disadvantage of such preparations can be seen above all in their high price.
  • the object of the present invention was to provide an improved method to provide with the polyolefin or polyester containing fibers or nonwovens, which contain polyolefin or polyester fibers, can be made hydrophilic, the hydrophilic finish should be retained even after repeated wetting.
  • the invention therefore relates to a process for the hydrophilic finishing of fibers which contain exclusively or predominantly polyolefins or polyesters or of nonwovens which predominantly contain such fibers, the nonwovens being mixed with an aqueous dispersion of a preparation which comprises 50 to 95% by weight, based on the total weight of the preparation, at least one quaternary esteramine salt of the formula (I), where R 1 is an aliphatic alkyl radical having 12 to 22 carbon atoms, R 2 is either a radical (CH 2 ) n -O-COR 1 , or an alkyl radical having 12 to 22 carbon atoms, R 3 and R 4 are independently a radical (CH 2 ) n -R 5 , where R 5 is H or OH and n is a number between 1 and 3 and X is either a halide, methosulfate, methophosphate or phosphate ion, 5 to 50 wt .-% of at least one alkyl glycoside with the general
  • the method according to the invention is suitable for fibers which are exclusively or predominantly, i.e. contain more than 50 wt .-%, polyolefins or polyester and for Nonwovens that contain predominantly such fibers, with fibers that exclusively Polyolefins or polyesters are preferred.
  • Nonwovens are particularly suitable, which contain 100% by weight of polyolefin or polyester fibers.
  • Polyolefin fibers belong to the most common fibers used to make nonwovens.
  • suitable polyolefins are polypropylene, polyethylene or copolymers of ethylene or Propylene with butadiene.
  • polyester fibers are also mainly used Polyethylene terephthalate fibers used.
  • Fibers suitable for the production of nonwovens are also used such as fibers made of Nylon®. Fibers are also particularly suitable consist of two or more components, for example polyester copolyester fibers or polypropylene-polyethylene fibers.
  • nonwovens used in the process according to the invention can be produced by all processes of nonwoven production known in the prior art, as described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, Vol. A 17, VCH Weinheim 1994, pages 572-581.
  • Nonwovens which are produced either by the so-called “dry laid” method or by the spunbonded method or spunbond method are preferred.
  • the "dry laid” process is based on staple fibers, which are usually separated into individual fibers by carding and then folded together using an aerodynamic or hydrodynamic process to form the unconsolidated nonwoven. This is then combined, for example, by a thermal treatment to form the finished fleece (the so-called "thermobonding").
  • the synthetic fibers are either heated to such an extent that their surface melts and the individual fibers are joined together at the contact points, or the fibers are coated with an additive which melts during the heat treatment and thus connects the individual fibers together.
  • the connection is fixed by cooling.
  • all other processes which are used in the prior art for connecting nonwovens are of course also suitable.
  • Spunbond formation starts from individual filaments which are formed by the melt spinning process from extruded polymers which are pressed through spinnerets under high pressure.
  • the filaments emerging from the spinnerets are bundled, stretched and laid down to form a fleece, which is usually consolidated by "thermobonding".
  • the process according to the invention is particularly suitable for nonwovens which are produced by the spunbonded nonwoven or the "dry laid" process.
  • the fibers or nonwovens are in the process according to the invention with the preparation made up of quaternary esteramine salt, alkglycoside and optionally glycerin, by preparation in the form of an aqueous dispersion, preferably between 5 and 30% by weight of the preparation, based on the total weight of the dispersion, contains, to which fibers or the nonwoven are applied. All in the Methods and machines customary in textile technology, for example a foulard, are used become.
  • the nonwoven is first in a bath with the aqueous dispersion in Brought together and the treated nonwoven between two roles, the water bouncing off the pressure of the rollers.
  • the process is preferably designed so that the fibers or nonwovens have a support of preparation in amounts of 0.3 to 1.5% by weight, in particular 0.5 to 1.0% by weight, based on the fiber or nonwoven weight obtained.
  • the preparation used in the process according to the invention contains between 50 and 95% by weight, based on the total weight of the preparation, of at least one quaternary esteramine salt of the formula (I).
  • preparations containing quaternary esteramine salts of the general formula (II) are particularly preferably used where COR 6 is an aliphatic acyl radical having 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds, and R 7 is H or OH, where n is 1, 2 or 3 and X is either a halide or methosulfate -, methophosphate or phosphate ion.
  • the compounds of formula (II) can be obtained, for example, by reacting diethanolalkylamines with technical fatty acids and subsequent quaternization.
  • Examples of such compounds are the methyl N- (2-hydroxyethyl) -N, N-di (tallow acyloxyethyl) ammonium methosulfate or the bis (acyloxyethyl) hydroxy ethyl methyl ammonium methosulfate.
  • Compounds which contain alkyl radicals having 16 to 18 carbon atoms and whose alkyl chains have 1 to 3 double bonds are particularly preferred. Mixtures of different esteramine salts of the formulas (I) and / or (II) can also be used.
  • the preparation used in the process according to the invention contains, in amounts between 5 and 50% by weight, based on the total weight of the preparation, alkyl glycosides of the general formula RO (G) x , in which R is a primary straight-chain or methyl-branched, in particular in 2 Position methyl-branched aliphatic radical with 8 to 22, preferably 12 to 18 carbon atoms and G is the symbol which stands for a glycoside unit with 5 or 6 carbon atoms, preferably for glucose.
  • the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; x is preferably 1.2 to 1.4. Preparations which contain alkyl glycosides in amounts of between 5 and 30% by weight are particularly preferred.
  • glycerol in amounts up to 30 wt .-%, based on the total weight of the preparation used in the method according to the invention, to improved properties of the fibers or nonwovens in terms of hydrophilicity and leads to skin tolerance.
  • the method according to the invention is preferably so designed that the fibers or nonwovens treated with a preparation containing glycerin be, the preparation glycerol in amounts between 1.0 to 15 wt .-%, based on the total weight of the preparation.
  • the process according to the invention can also be advantageous to design the process according to the invention in such a way that the fibers or the nonwovens are treated with a preparation which, in addition to the components already described, also contains monoesters of glycerol and a C 6 -C 14 fatty acid in amounts between 5 and 35 % By weight, based on the total amount of the mixture.
  • a particularly preferred monoester is glycerol monolaurate.
  • fibers with a hydrophilic finish which exclusively or predominantly contain polyolefins or polyester or Nonwovens, which predominantly contain fibers claimed after the Process according to the invention are produced.
  • These fibers or nonwovens show hydrophilic properties, which are preferably retained even after repeated wetting stay.
  • the nonwovens produced according to the invention have a "liquid strike” through “times of less than 10 seconds, especially less than 5 seconds on. Under “liquid strike-through” times, the Understand times that a certain amount of water or artificial urine takes to to get through the fleece to an absorbent underlayer. This time is after the EDANA (European Association of Nonwovens Manufacturers) test method 150.0-84 certainly.
  • the "liquid strike through "time should be as short as possible to ensure rapid liquid transport through the fleece to ensure the absorbent material. That way stays the fleece surface is dry, making it more comfortable to wear.
  • the Nonwovens produced according to the invention also retain this favorable property repeated use and are further characterized by the fact that they are preferably at three times, especially five times, one after the other the "liquid strike through” time according to the EDANA test method 150.0-8, in any case a liquid strike through time of less than 10 seconds, especially less than 5 seconds.
  • the "strike-through" times of the test nonwovens were measured using the EDANA test method 150.0-84.
  • the measurements were carried out using a test device with a timer (Lister tester) from Lenzing AG.
  • the test fleeces polypropylene spunbond fleece with a weight of 20 g / m 2 - Lutrasil® 4420, from Freudenberg
  • the test nonwovens were then dried at 70 ° C. for one hour.
  • Nonwovens that were equipped with the following preparations were tested.
  • the percentages by weight relate to the total weight of the preparation.
  • the respective preparations were used in the form of an aqueous dispersion, which was 20 % By weight of active substance, based on the aqueous dispersion, contained.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A process for making synthetic fibers or nonwoven substrates hydrophilic made from the synthetic fibers comprising applying an effective amount of a finish composition onto the fibers or nonwoven substrates, the finish composition containing: (a) from 50 to 95% by weight of a hydrophobicizing agent selected from the group consisting of at least one quaternary ester amine salt corresponding to formula I:wherein R1 is an aliphatic alkyl group containing from 12 to 22 carbon atoms, R2 is either (CH2)n-O-COR1 or an alkyl group containing from 12 to 22 carbon atoms, R3 and R4, independently of one another, represent (CH2)n-R5, where R5 is H or OH and n is a number from 1 to 3, and X is either a halide, methosulfate, methophosphate or phosphate ion, a quaternary ester amine salt corresponding to formula II:wherein COR6 is an aliphatic acyl group containing from 12 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, R7 is H or OH, n has a value of 1, 2 or 3 and X is either a halide, methosulfate, methophosphate or phosphate ion, and mixtures thereof; and (b) from 5 to 50% by weight of at least one alkyl glycoside corresponding to formula III:wherein R is a primary linear or methyl-branched aliphatic radical containing from 8 to 22 carbon atoms, G is a glycoside unit containing 5 or 6 carbon atoms and x is a number from 1 to 10, all weights being based on the total weight of the composition.

Description

Die vorliegende Anmeldung betrifft ein Verfahren zur hydrophilen Ausrüstung von Fasern, die ausschließlich oder überwiegend Polyolefine oder Polyester enthalten oder von Vliesstoffen, die Polyolefin- oder Polyesterfasern enthalten sowie Fasern oder Vliesstoffe, die nach diesem Verfahren hydrophil ausgerüstet werden.The present application relates to a method for the hydrophilic finishing of Fibers that contain exclusively or predominantly polyolefins or polyester of nonwovens containing polyolefin or polyester fibers and fibers or Nonwovens that are made hydrophilic by this process.

Bei der Herstellung von Hygieneartikeln, wie Windeln oder Damenbinden, werden absorbierende Materialien verwendet, um wäßrige Flüssigkeiten aufzunehmen. Um den direkten Kontakt mit dem absorbierenden Material beim Tragen zu verhindern und den Tragekomfort zu erhöhen, wird dieses Material mit einem dünnen, wasserdurchlässigen Vliesstoff umhüllt. Derartige Vliesstoffe werden üblicherweise aus synthetischen Fasern, wie Polyolefin- oder Polyesterfasern hergestellt, da diese Fasern preiswert zu produzieren sind, gute mechanische Eigenschaften aufweisen und im Fall von Polyolefin thermisch verfestigbar sind. Allerdings eignen sich unbehandelte Polyolefin- oder Polyesterfasern für diesen Einsatzzweck nicht, da sie aufgrund ihrer hydrophoben Oberfläche keine ausreichende Durchlässigkeit für wäßrige Flüssigkeiten aufweisen. Zu diesem Zweck muß die Faseroberfläche durch eine entsprechende Präparation hydrophil ausgerüstet werden. Gewünscht ist weiterhin, daß die hydrophile Ausrüstung der Faser möglichst lange erhalten bleibt, ohne daß die Wasserdurchlässigkeit des Vliesstoffs verringert wird. Werden derartige Vliesstoffe beispielsweise in Windeln verarbeitet, können diese mehrfach beansprucht werden, ohne undicht zu werden. Auf diese Weise wird die Tragezeit der Windeln erhöht und der durch verbrauchte Windeln verursachte Abfall verringert.In the manufacture of hygiene items such as diapers or sanitary napkins absorbent materials used to absorb aqueous liquids. To the to prevent direct contact with the absorbent material when worn and the To increase comfort, this material is made with a thin, water-permeable Nonwoven wrapped. Such nonwovens are usually made of synthetic fibers, such as polyolefin or polyester fibers because these fibers are inexpensive too produce, have good mechanical properties and in the case of polyolefin are thermally solidifiable. However, untreated polyolefin or Polyester fibers are not suitable for this purpose because of their hydrophobic nature Surface does not have sufficient permeability for aqueous liquids. To For this purpose, the fiber surface must be made hydrophilic by an appropriate preparation be equipped. It is also desirable that the hydrophilic finish of the fiber remains as long as possible without the water permeability of the nonwoven fabric is reduced. If such nonwovens are processed, for example, in diapers, can be used several times without leaking. In this way the wearing time of the diapers is increased and that caused by used diapers Waste decreased.

Die US 5,045,387 beschreibt beispielsweise ein Mittel zur hydrophilen Ausrüstung von Polyolefinfasern, welches eine Mischung aus einem alkoxyliertem Ricinolsäurederivat, einem hydrierten Ricinolsäurederivat, einer C18-Fettsäure und einem polyalkoxylierten Polymethylsiloxan enthält. Die EP 372 890 B1 offenbart Fasern, die Polyolefine oder Polyester umfassen und mit einem Mittel, welches ein Fettsäurediethanolamid, ein polyethermodifiziertes Silicon, einen Sorbitan-Fettsäureester und ein Metallsalz eines Alkylsulfonats enthalten, behandelt wurden. Der Nachteil derartiger Präparationen ist vor allem in ihrem hohen Preis zu sehen. Weiterhin können Fasern, die mit derartigen Mittel ausgerüstet werden, ein schlechteres Verhalten bei der Vliesherstellung, insbesondere beim Thermobondieren zeigen, was zu einer verringerten Vliesfestigkeit führt. Der DE 4.2 43 547 C2 ist zu entnehmen, daß sich bestimmte quaternierte Fettsäuretriethanolaminester-Salze zur Herstellung von Spinnpräparationen für synthetische Fasern eignen. Diese Verbindungen sind physiologisch unbedenklich und weisen eine gute biologische Abbaubarkeit auf. Der Schrift ist aber kein Hinweis zu entnehmen, daß sich derartige Substanzen auch zur hydrophilen Ausrüstung von synthetischen Fasern eignen. Die französische Patentanmeldung 96/2024 offenbart wäßrige Zubereitungen mit Feststoffgehalten zwischen 1 und 50 Gew.-%, die lineare, gesättigte Fettalkohole, Wachsester, nichtionische und/oder amphotere bzw. zwitterionische Emulgatoren sowie kationische Tenside enthalten und deren Verwendung zur Herstellung von Gebrauchspapieren mit verbessertem Weichgriff und als Softener auf Cellulose- und Textilfasern.No. 5,045,387 describes, for example, an agent for the hydrophilic finishing of polyolefin fibers, which contains a mixture of an alkoxylated ricinoleic acid derivative, a hydrogenated ricinoleic acid derivative, a C 18 fatty acid and a polyalkoxylated polymethylsiloxane. EP 372 890 B1 discloses fibers which comprise polyolefins or polyesters and have been treated with an agent which comprises a fatty acid diethanolamide, a polyether-modified silicone, a sorbitan fatty acid ester and a metal salt of an alkyl sulfonate. The disadvantage of such preparations can be seen above all in their high price. Furthermore, fibers which are equipped with such agents can show poorer behavior in the production of nonwovens, in particular in thermobonding, which leads to reduced nonwoven strength. DE 4.2 43 547 C2 shows that certain quaternized fatty acid triethanolamine ester salts are suitable for the preparation of spin finishes for synthetic fibers. These compounds are physiologically harmless and have good biodegradability. However, the document does not indicate that such substances are also suitable for the hydrophilic finishing of synthetic fibers. French patent application 96/2024 discloses aqueous preparations with solids contents of between 1 and 50 wt Soft handle and as a softener on cellulose and textile fibers.

Die Aufgabe der vorliegenden Erfindung bestand darin, ein verbessertes Verfahren bereitzustellen, mit dem Polyolefin- oder Polyester enthaltende Fasern oder Vliesstoffe, die Polyolefin- oder Polyesterfasern enthalten, hydrophil ausgerüstet werden können, wobei die hydrophile Ausrüstung auch nach mehrmaliger Benetzung erhalten bleiben soll.The object of the present invention was to provide an improved method to provide with the polyolefin or polyester containing fibers or nonwovens, which contain polyolefin or polyester fibers, can be made hydrophilic, the hydrophilic finish should be retained even after repeated wetting.

Es wurde nun gefunden, daß diese Anforderungen durch ein Verfahren erfüllt werden, bei dem man die Fasern oder Vliesstoffe mit einer Präparation behandelt, die quaternäre Esteraminsalze und Alkylglykoside enthalten.It has now been found that these requirements are met by a process in which the fibers or nonwovens are treated with a preparation, the quaternary Contain esteramine salts and alkyl glycosides.

Gegenstand der Erfindung ist daher ein Verfahren zur hydrophilen Ausrüstung von Fasern, die ausschließlich oder überwiegend Polyolefine oder Polyester enthalten oder von Vliesstoffen, die überwiegend solche Fasern enthalten, wobei die Vliesstoffe mit einer wäßrigen Dispersion einer Präparation, die 50 bis 95 Gew.-%, bezogen auf das Gesamtgewicht der Präparation, mindestens eines quaternären Esteraminsalzes der Formel (I),

Figure 00030001
wobei R1 für einen aliphatischen Alkylrest mit 12 bis 22 Kohlenstoffatomen steht, R2 entweder ein Rest (CH2)n-O-COR1, oder ein Alkylrest mit 12 bis 22 Kohlenstoffatomen, R3 und R4 unabhängig voneinander einen Rest (CH2)n-R5 bedeuten, wobei R5 gleich H oder OH und n eine Zahl zwischen 1 und 3 bedeutet und X entweder ein Halogenid-, Methosulfat-, Methophosphat- oder Phosphation ist, 5 bis 50 Gew.-% mindestens eines Alkylglykosids mit der allgemeinen Formel RO(G)x in der R einen primären geradkettigen oder methylverzweigten aliphatischen Rest mit 8 bis 22 C-Atomen bedeutet und G für eine Glykosideinheit mit 5 oder 6 C-Atomen steht und x eine Zahl zwischen 1 und 10 bedeutet, und 0 bis 30 Gew.-% Glycerin enthält, behandelt werden.The invention therefore relates to a process for the hydrophilic finishing of fibers which contain exclusively or predominantly polyolefins or polyesters or of nonwovens which predominantly contain such fibers, the nonwovens being mixed with an aqueous dispersion of a preparation which comprises 50 to 95% by weight, based on the total weight of the preparation, at least one quaternary esteramine salt of the formula (I),
Figure 00030001
where R 1 is an aliphatic alkyl radical having 12 to 22 carbon atoms, R 2 is either a radical (CH 2 ) n -O-COR 1 , or an alkyl radical having 12 to 22 carbon atoms, R 3 and R 4 are independently a radical (CH 2 ) n -R 5 , where R 5 is H or OH and n is a number between 1 and 3 and X is either a halide, methosulfate, methophosphate or phosphate ion, 5 to 50 wt .-% of at least one alkyl glycoside with the general formula RO (G) x in which R represents a primary straight-chain or methyl-branched aliphatic radical having 8 to 22 C atoms and G represents a glycoside unit having 5 or 6 C atoms and x represents a number between 1 and 10, and contains 0 to 30% by weight of glycerin.

Das erfindungsgemäße Verfahren eignet sich für Fasern, die ausschließlich oder überwiegend, d.h. zu mehr als 50 Gew.-%, Polyolefine oder Polyester enthalten und für Vliesstoffe, die überwiegend solche Fasern enthalten, wobei Fasern, die ausschließlich Polyolefine oder Polyester enthalten bevorzugt sind. Besonders geeignet sind Vliesstoffe, die 100 Gew.-% Polyolefin- oder Polyesterfasern enthalten. Polyolefinfasern gehören zu den am häufigsten zur Herstellung von Vliesstoffen eingesetzten Fasern. Beispiel für geeignete Polyolefine sind Polypropylen, Polyethylen oder Copolymere aus Ethylen oder Propylen mit Butadien. Weiterhin werden auch Polyesterfasern, hauptsächlich Polyethylenterephthalatfasern, verwendet. Es können neben den genannten Fasertypen auch andere zur Herstellung von Vliesen geeigneten synthetischen Fasern verwendet werden, beispielsweise Fasern aus Nylon® . Insbesondere geeignet sind auch Fasern, die aus zwei oder mehr Komponenten bestehen, beispielsweise Polyester-Copolyesterfasem oder Polypropylen-Polyethylenfasern. The method according to the invention is suitable for fibers which are exclusively or predominantly, i.e. contain more than 50 wt .-%, polyolefins or polyester and for Nonwovens that contain predominantly such fibers, with fibers that exclusively Polyolefins or polyesters are preferred. Nonwovens are particularly suitable, which contain 100% by weight of polyolefin or polyester fibers. Polyolefin fibers belong to the most common fibers used to make nonwovens. example for suitable polyolefins are polypropylene, polyethylene or copolymers of ethylene or Propylene with butadiene. Furthermore, polyester fibers are also mainly used Polyethylene terephthalate fibers used. In addition to the fiber types mentioned other synthetic fibers suitable for the production of nonwovens are also used such as fibers made of Nylon®. Fibers are also particularly suitable consist of two or more components, for example polyester copolyester fibers or polypropylene-polyethylene fibers.

Die im erfindungsgemäßen Verfahren verwendeten Vliesstoffe können nach allen im Stand der Technik bekannten Verfahren der Vliesherstellung, wie sie beispielsweise in Ullmann's Encyclopedia of Industrial Chemistry, Vol. A 17, VCH Weinheim 1994, Seiten 572 - 581, beschrieben werden, hergestellt werden. Bevorzugt sind dabei Vliese, die entweder nach dem sogenannte "dry laid"- oder dem Spinnvlies- oder spunbond-Verfahren hergestellt wurden. Das "dry laid"-Verfahren geht von Stapelfasern aus, die üblicherweise durch Kardieren in Einzelfasern getrennt und anschließend unter Einsatz eines aerodynamischen oder hydrodynamischen Verfahrens zum unverfestigten Vliesstoff zusammengelegt werden.
Dieser wird dann beispielsweise durch eine thermische Behandlung zum fertigen Vlies verbunden (das sogenannte "thermobonding"). Dabei werden die synthetischen Fasern entweder soweit erwärmt, daß deren Oberfläche schmilzt und die Einzelfasern an den Kontakstellen miteinander verbunden werden, oder die Fasern werden mit einem Additiv überzogen, welches bei der Wärmebehandlung schmilzt und so die einzelnen Fasern miteinander verbindet. Durch Abkühlung wird die Verbindung fixiert. Neben diesem Verfahren sind natürlich auch alle anderen Verfahren geeignet, die im Stand der Technik zum Verbinden von Vliesstoffen eingesetzt werden.
Die Spinnvliesbildung geht dagegen von einzelnen Filamenten aus, die nach dem Schmelzspinnverfahren aus extrudierten Polymeren gebildet werden, welche unter hohem Druck durch Spinndüsen gedrückt werden. Die aus den Spinndüsen austretenden Filamente werden gebündelt, gestreckt und zu einem Vlies abgelegt, welches üblicherweise durch "thermobonding" verfestigt wird.
Das erfindungsgemäße Verfahren eignet sich insbesondere für Vliesstoffe, die nach dem Spinnvlies-oder dem "dry laid"-Verfahren hergestellt werden.The nonwovens used in the process according to the invention can be produced by all processes of nonwoven production known in the prior art, as described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, Vol. A 17, VCH Weinheim 1994, pages 572-581. Nonwovens which are produced either by the so-called "dry laid" method or by the spunbonded method or spunbond method are preferred. The "dry laid" process is based on staple fibers, which are usually separated into individual fibers by carding and then folded together using an aerodynamic or hydrodynamic process to form the unconsolidated nonwoven.
This is then combined, for example, by a thermal treatment to form the finished fleece (the so-called "thermobonding"). The synthetic fibers are either heated to such an extent that their surface melts and the individual fibers are joined together at the contact points, or the fibers are coated with an additive which melts during the heat treatment and thus connects the individual fibers together. The connection is fixed by cooling. In addition to this process, all other processes which are used in the prior art for connecting nonwovens are of course also suitable.
Spunbond formation, on the other hand, starts from individual filaments which are formed by the melt spinning process from extruded polymers which are pressed through spinnerets under high pressure. The filaments emerging from the spinnerets are bundled, stretched and laid down to form a fleece, which is usually consolidated by "thermobonding".
The process according to the invention is particularly suitable for nonwovens which are produced by the spunbonded nonwoven or the "dry laid" process.

Die Fasern oder Vliesstoffe werden im erfindungsgemäßen Verfahren mit der Präparation aus quaternärem Esteraminsalz, Alkglykosid und gegebenenfalls Glycerin ausgerüstet, indem die Präparation in Form einer wäßrigen Dispersion, die vorzugsweise zwischen 5 und 30 Gew.-% der Präparation, bezogen auf das Gesamtgewicht der Dispersion, enthält, auf die Fasern oder den Vliesstoff aufgebracht werden. Dazu können alle in der Textiltechnik üblichen Methoden und Maschinen, beispielsweise ein Foulard, eingesetzt werden. Der Vliesstoff wird zunächst in einem Bad mit der wäßrigen Dispersion in Verbindung gebracht und der so behandelte Vliesstoff zwischen zwei Rollen geführt, wobei das Wasser durch den Druck der Rollen abgeprallt wird. Das erfindungsgemäße Verfahren wird vorzugsweise so gestaltet, daß die Fasern oder Vliesstoffe eine Auflage an Präparation in Mengen von 0,3 bis 1,5 Gew.-%, insbesondere von 0,5 bis 1,0 Gew.-%, bezogen auf das Faser- oder Vliesstoffgewicht, erhalten.The fibers or nonwovens are in the process according to the invention with the preparation made up of quaternary esteramine salt, alkglycoside and optionally glycerin, by preparation in the form of an aqueous dispersion, preferably between 5 and 30% by weight of the preparation, based on the total weight of the dispersion, contains, to which fibers or the nonwoven are applied. All in the Methods and machines customary in textile technology, for example a foulard, are used become. The nonwoven is first in a bath with the aqueous dispersion in Brought together and the treated nonwoven between two roles, the water bouncing off the pressure of the rollers. The invention The process is preferably designed so that the fibers or nonwovens have a support of preparation in amounts of 0.3 to 1.5% by weight, in particular 0.5 to 1.0% by weight, based on the fiber or nonwoven weight obtained.

Die im erfindungsgemäßen Verfahren eingesetzte Präparation enthält zwischen 50 und 95 Gew.-%, bezogen auf das Gesamtgewicht der Präparation, mindestens ein quaternäres Esteraminsalz der Formel (I). Besonders bevorzugt werden aber Präparationen eingesetzt, die quaternäre Esteraminsalze der allgemeinen Formel (II) enthalten

Figure 00060001
wobei COR6 für einen aliphatischen Acylrest mit 12 bis 22 Kohlenstoffatomen mit 0, 1, 2 oder 3 Doppelbindungen steht, sowie R7 gleich H oder OH bedeutet, wobei n den Wert 1, 2 oder 3 hat und X entweder ein Halogenid-, Methosulfat-, Methophosphat- oder Phosphation ist. Die Verbindungen der Formel (II) können beispielsweise durch Umsetzung von Diethanolalkylaminen mit technischen Fettsäuren und anschließender Quaternierung erhalten werden. Beispiele für derartigen Verbindungen sind das Methyl-N-(2-hydroxyethyl)-N,N-di(talgacyloxyethyl)-ammoniummethosulfat oder das Bis-(Acyloxyethyl)hydroxy-ethylmethyl-ammoniummethosulfat. Besonders bevorzugt sind Verbindungen, die Alkylreste mit 16 bis 18 Kohlenstoffatomen enthalten und deren Alkylketten 1 bis 3 Doppelbindungen aufweisen. Es können auch Mischungen verschiedener Esteraminsalze der Formeln (I) und/oder (II) verwendet werden.
Als weitere Komponente enthält die im erfindungsgemäßen Verfahren verwendete Präparation in Mengen zwischen 5 und 50 Gew.-%, bezogen auf das Gesamtgewicht der Präparation, Alkylglykoside der allgemeinen Formel RO(G)x, in der R einen primären geradkettigen oder methylverzweigten, insbesondere in 2-Stellung methylverzweigten aliphatischen Rest mit 8 bis 22, vorzugsweise 12 bis 18 C-Atomen bedeutet und G das Symbol ist, das für eine Glykosideinheit mit 5 oder 6 C-Atomen, vorzugsweise für Glucose, steht. Der Oligomerisierungsgrad x, der die Verteilung von Monoglykosiden und Oligoglykosiden angibt, ist eine beliebige Zahl zwischen 1 und 10; vorzugsweise liegt x bei 1,2 bis 1,4. Besonders bevorzugt sind Präparationen, die Alkylglykoside in Mengen zwischen 5 und 30 Gew.-% enthalten.The preparation used in the process according to the invention contains between 50 and 95% by weight, based on the total weight of the preparation, of at least one quaternary esteramine salt of the formula (I). However, preparations containing quaternary esteramine salts of the general formula (II) are particularly preferably used
Figure 00060001
where COR 6 is an aliphatic acyl radical having 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds, and R 7 is H or OH, where n is 1, 2 or 3 and X is either a halide or methosulfate -, methophosphate or phosphate ion. The compounds of formula (II) can be obtained, for example, by reacting diethanolalkylamines with technical fatty acids and subsequent quaternization. Examples of such compounds are the methyl N- (2-hydroxyethyl) -N, N-di (tallow acyloxyethyl) ammonium methosulfate or the bis (acyloxyethyl) hydroxy ethyl methyl ammonium methosulfate. Compounds which contain alkyl radicals having 16 to 18 carbon atoms and whose alkyl chains have 1 to 3 double bonds are particularly preferred. Mixtures of different esteramine salts of the formulas (I) and / or (II) can also be used.
As a further component, the preparation used in the process according to the invention contains, in amounts between 5 and 50% by weight, based on the total weight of the preparation, alkyl glycosides of the general formula RO (G) x , in which R is a primary straight-chain or methyl-branched, in particular in 2 Position methyl-branched aliphatic radical with 8 to 22, preferably 12 to 18 carbon atoms and G is the symbol which stands for a glycoside unit with 5 or 6 carbon atoms, preferably for glucose. The degree of oligomerization x, which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; x is preferably 1.2 to 1.4. Preparations which contain alkyl glycosides in amounts of between 5 and 30% by weight are particularly preferred.

Es hat sich gezeigt, das ein Zusatz an Glycerin in Mengen bis zu 30 Gew.-%, bezogen auf das Gesamtgewicht der im erfindungsgemäßen Verfahren verwendeten Präparation, zu verbesserten Eigenschaften der Fasern oder Vliesstoffe in Bezug auf die Hydrophilie und der Hautverträglichkeit führt. Das erfindungsgemäße Verfahren wird bevorzugt so gestaltet, daß die Fasern oder Vliesstoffe mit einer glycerinhaltigen Präparation behandelt werden, wobei die Präparation Glycerin in Mengen zwischen 1,0 bis 15 Gew.-%, bezogen auf das Gesamtgewicht der Präparation, enthält.It has been shown that an addition of glycerol in amounts up to 30 wt .-%, based on the total weight of the preparation used in the method according to the invention, to improved properties of the fibers or nonwovens in terms of hydrophilicity and leads to skin tolerance. The method according to the invention is preferably so designed that the fibers or nonwovens treated with a preparation containing glycerin be, the preparation glycerol in amounts between 1.0 to 15 wt .-%, based on the total weight of the preparation.

Neben den oben beschriebenen Verbindungen, können noch weitere in der Textiltechnik bekannten Stoffe in der Präparation eingesetzt werden, beispielsweise Antistatika oder Gleitmittel. Diese werden üblicherweise in Mengen bis höchstens 20 Gew.-%, bezogen auf das Gesamtgewicht der Präparation, eingesetzt.In addition to the compounds described above, others can be used in textile technology known substances are used in the preparation, for example antistatic agents or Lubricant. These are usually obtained in amounts up to a maximum of 20% by weight on the total weight of the preparation.

Es kann auch vorteilhaft sein das erfindungsgemäßen Verfahren so zu gestalten, daß die Fasern oder die Vliesstoffe mit einer Präparation behandelt werden, die zusätzlich zu den bereits beschriebenen Komponenten auch Monoester aus Glycerin und einer C6-C14-Fettsäure in Mengen zwischen 5 und 35 Gew.-%, bezogen auf die Gesamtmenge der Mischung, enthält. Ein besonders bevorzugter Monoester ist das Glycerinmonolaurat.It can also be advantageous to design the process according to the invention in such a way that the fibers or the nonwovens are treated with a preparation which, in addition to the components already described, also contains monoesters of glycerol and a C 6 -C 14 fatty acid in amounts between 5 and 35 % By weight, based on the total amount of the mixture. A particularly preferred monoester is glycerol monolaurate.

In einer weiteren Ausführungsform der Erfindung werden hydrophil ausgerüstete Fasern, die ausschließlich oder überwiegend Polyolefine oder Polyester enthalten oder Vliesstoffe, die überwiegend solche Fasern enthalten, beansprucht, die nach dem erfindungsgemäßen Verfahren hergestellt werden. Diese Fasern oder Vliesstoffe zeigen hydrophile Eigenschaften, die vorzugsweise auch bei mehrmaliger Benetzung erhalten bleiben. Insbesondere weisen die erfindungsgemäß hergestellten Vliesstoffe "liquid strike through"-Zeiten von weniger als 10 Sekunden und insbesondere weniger als 5 Sekunden auf. Unter "liquid strike-through"-Zeiten werden im Rahmen dieser Anmeldung die Zeiten verstanden, die eine bestimmte Menge Wasser oder künstlicher Urin benötigt, um durch das Vlies zu einer absorbierenden Unterschicht zu gelangen. Diese Zeit wird nach der EDANA (europäischer Verband der Vliesstoffhersteller) Testmethode 150.0-84 bestimmt. Für den Einsatz in Windeln oder ähnlichen Hygieneartikeln sollte die "liquid strike through"-Zeit möglichst klein sein, um einen schnellen Transport der Flüssigkeit durch das Vlies zum absorbierenden Material zu gewährleisten. Auf diese Weise bleibt die Vliesoberfläche trocken und führt so zu einem erhöhten Tragekomfort. Die erfindungsgemäß hergestellten Vliesstoffe behalten diese günstige Eigenschaft auch bei mehrmaligem Gebrauch und zeichnen sich weiter dadurch aus, daß sie vorzugsweise bei dreimaliger, insbesondere bei fünfmaliger, hintereinander durchgeführten Bestimmung der "liquid strike through"-Zeit nach der EDANA Testmethode 150.0-8, in jedem Fall eine "liquid strike through"-Zeit von weniger als 10 Sekunden, insbesondere von weniger als 5 Sekunden aufweisen. In a further embodiment of the invention, fibers with a hydrophilic finish, which exclusively or predominantly contain polyolefins or polyester or Nonwovens, which predominantly contain fibers claimed after the Process according to the invention are produced. These fibers or nonwovens show hydrophilic properties, which are preferably retained even after repeated wetting stay. In particular, the nonwovens produced according to the invention have a "liquid strike" through "times of less than 10 seconds, especially less than 5 seconds on. Under "liquid strike-through" times, the Understand times that a certain amount of water or artificial urine takes to to get through the fleece to an absorbent underlayer. This time is after the EDANA (European Association of Nonwovens Manufacturers) test method 150.0-84 certainly. For use in diapers or similar hygiene articles, the "liquid strike through "time should be as short as possible to ensure rapid liquid transport through the fleece to ensure the absorbent material. That way stays the fleece surface is dry, making it more comfortable to wear. The Nonwovens produced according to the invention also retain this favorable property repeated use and are further characterized by the fact that they are preferably at three times, especially five times, one after the other the "liquid strike through" time according to the EDANA test method 150.0-8, in any case a liquid strike through time of less than 10 seconds, especially less than 5 seconds.

BeispieleExamples

Zur Messung der Hydrophilie der unterschiedlich hergestellten Vliesstoffe wurden die "strike-through"-Zeiten der Testvliese nach der EDANA Testmethode 150.0-84 gemessen.
Die Messungen wurden mit einem Testgerät mit Zeitaufnehmer (Lister-Tester) der Fa. Lenzing AG durchgeführt. Die Testvliese (Polypropylen-spunbond-Vlies mit einem Gewicht von 20g/m2 - Lutrasil® 4420, Fa. Freudenberg) wurden mit der wäßrigen Dispersion der Präparation besprüht. Anschließend wurden die Testvliese bei 70 °C eine Stunde lang getrocknet.
Für die eigentliche Messungen wurden 6 Lagen eines Filterpapiers (Evans-Adlard FF3 WIS 150) unter eine Lage des präparierten Testvliesses gelegt und anschließend mit 5 ml künstlichen Urins (1000 ml dest. H2O, 9 g NaCl) aus dem Lister-Tester in Kontakt gebracht. Die Messungen wurden bei 20 °C und 65 % relativer Luftfeuchtigkeit durchgeführt. Die Zeit, die die Flüssigkeit braucht, um das Vlies zu durchdringen, wurde am Zeitaufnehmer in Sekunden abgelesen.
Um die hydrophilen Eigenschaften der Vliesstoffe bei mehrmaliger Beanspruchung zu messen, wurde das Testvlies nach der ersten Messung, ohne getrocknet zu werden, mit einer neuen Schicht aus Filterpapier unterlegt und die Messung wiederholt.
Zeiten von maximal 5 Sekunden bei jeweils 5 Wiederholungen wurden als gut bewertet. Zeiten über 10 Sekunden wurden nicht mehr wiedergegeben.In order to measure the hydrophilicity of the differently produced nonwovens, the "strike-through" times of the test nonwovens were measured using the EDANA test method 150.0-84.
The measurements were carried out using a test device with a timer (Lister tester) from Lenzing AG. The test fleeces (polypropylene spunbond fleece with a weight of 20 g / m 2 - Lutrasil® 4420, from Freudenberg) were sprayed with the aqueous dispersion of the preparation. The test nonwovens were then dried at 70 ° C. for one hour.
For the actual measurements, 6 layers of filter paper (Evans-Adlard FF3 WIS 150) were placed under one layer of the prepared test fleece and then with 5 ml artificial urine (1000 ml dist. H 2 O, 9 g NaCl) from the Lister tester Brought in contact. The measurements were carried out at 20 ° C and 65% relative humidity. The time it takes for the liquid to penetrate the fleece was read off in seconds from the timer.
In order to measure the hydrophilic properties of the nonwovens after repeated exposure, the test nonwoven was underlaid with a new layer of filter paper after the first measurement without being dried and the measurement was repeated.
Times of maximum 5 seconds with 5 repetitions each were rated as good. Times over 10 seconds were no longer reproduced.

Die Ergebnisse sind der Tabelle 1 zu entnehmen. Angegeben sind die "strike-through"-Zeiten in Sekunden für Vliese, die mit unterschiedlichen Präparationen ausgerüstet wurden. Wiedergegeben sind Mittelwerte von jeweils 5 Messungen. Die Vliese wurden mit 0,5 und 1,0 Gew.-%, bezogen auf das Vliesstoffgewicht, mit der entsprechenden Präparation belegt.The results are shown in Table 1. The "strike-through" times are given in seconds for nonwovens equipped with different preparations were. Average values of 5 measurements are shown. The fleeces were with 0.5 and 1.0 wt .-%, based on the nonwoven fabric weight, with the corresponding Preparation occupied.

Getestet wurden Vliesstoffe, die mit den folgenden Präparationen ausgerüstet wurden. Die Angaben in Gew.-% beziehen sich auf das Gesamtgewicht der Präparation. Die jeweiligen Präparationen wurde in Form einer wäßrigen Dispersion eingesetzt, welche 20 Gew.-% Aktivsubstanz, bezogen auf die wäßrige Dispersion, enthielt.Nonwovens that were equipped with the following preparations were tested. The percentages by weight relate to the total weight of the preparation. The respective preparations were used in the form of an aqueous dispersion, which was 20 % By weight of active substance, based on the aqueous dispersion, contained.

Präparation 1:Preparation 1:

  • 70 Gew.-% Bis-(Acyloxyethyl)hydroxyethyl-methylammoniummethosulfat70% by weight of bis (acyloxyethyl) hydroxyethyl methylammonium methosulfate
  • 20 Gew.-% C8-14 Alkylpolyglucosid20% by weight of C 8-14 alkyl polyglucoside
  • 10 Gew.-% Glycerin10% by weight glycerin

    • Präparation 2:Preparation 2:

  • 60 Gew.-% Bis-(Acyloxyethyl)hydroxyethyl-methylammoniummethosulfat60% by weight bis (acyloxyethyl) hydroxyethyl methylammonium methosulfate
  • 10 Gew.-% C8-14 Alkylpolyglucosid10% by weight of C 8-14 alkyl polyglucoside
  • 30 Gew.-% Glycerin30% by weight glycerin

    • Präparation 3Preparation 3

  • 60 Gew.-% Bis-(Acyloxyethyl)hydroxyethyl-methylammoniummethosulfat60% by weight bis (acyloxyethyl) hydroxyethyl methylammonium methosulfate
  • 40 Gew.-% C8-14 Alkylpolyglucosid40% by weight of C 8-14 alkyl polyglucoside

    • Zum Vergleich wurden folgende Präparationen verwendet:The following preparations were used for comparison:

    Präparation V1:Preparation V1:

    100 Gew.-% Methyl-N-(2-hydroxyethyl)-N,N-di(talgacyloxyethyl)-ammonium-methosulfat100% by weight of methyl N- (2-hydroxyethyl) -N, N-di (tallow acyloxyethyl) ammonium methosulfate

    Präparation V2:Preparation V2:

  • 50 Gew.-% C8-14 Alkylpolyglucosid50% by weight of C 8-14 alkyl polyglucoside
  • 50 Gew.-% Glycerin50% by weight glycerin
    • Anzahl der Messungen Number of measurements 11 22nd 33rd 44th 55 66 Präparationpreparation 1
    (Auflag 0,5 %)    1
    (Requirement 0.5%)         336336 3,393.39 3,843.84 4,324.32 5,075.07 --     1
    (Auflage 1,0 %)    1
    (Edition 1.0%)         3,663.66 4,124.12 3,673.67 3,813.81 4,904.90 5,925.92     2
    (Auflage 0,5 %)    2
    (Circulation 0.5%)         4,04.0 3,893.89 4,574.57 5,745.74 -- --     2
    (Auflage 1,0 %)    2
    (Edition 1.0%)         3,723.72 3,583.58 3,783.78 4,044.04 5,505.50 --     3
    (Auflage 0,5 %)    3rd
    (Circulation 0.5%)         3,663.66 3,633.63 4,444.44 6,106.10 -- --     3
    (Auflage 1,0 %)    3rd
    (Edition 1.0%)         3,293.29 3,453.45 4,024.02 4,114.11 5,185.18 --     V1
    (Auflage 0,5 %)    V1
    (Circulation 0.5%)         3,263.26 5,665.66 7,577.57 -- -- --     V1
    (Auflage 1,0 %)    V1
    (Edition 1.0%)         3,533.53 4,664.66 7,417.41 9,939.93 -- --     V2
    (Auflage 0,5 %)    V2
    (Circulation 0.5%)         3,343.34 9,529.52 -- -- -- --     V2
    (Auflage 1,0 %)    V2
    (Edition 1.0%)         3,503.50 -- -- -- -- --

    Man erkennt, daß ein erfindungsgemäß hergestelltes Vlies, das mit dem Mittel 1 ausgerüstet wurde, auch bei der vierten Messung sowohl bei einer Auflage von 1,0 % als auch 0,5 % noch "liquid strike through"-Zeiten von weniger als 5 Sekunden zeigt. Dieser Effekt wird schon durch die Kombination aus einem quaternierten Esteraminsalz und einem Alkylpolyglucosid erzielt, wie der mit Präparation 3 ausgerüstet Vliesstoff zeigt. Auch ein Vliesstoff, der mit einem handelsüblichen Esterammoniumsalz ausgerüstet wurde, wie Präparation V1, zeigt eine gute Hydrophilierung. Diese Ausrüstung bleibt aber bei mehrfacher Belastung nicht so gut erhalten, so daß die "liquid strike through"-Zeiten bei den folgenden Messungen deutlich länger werden. Das mit dem Mittel V2 ausgerüstet Vlies belegt, daß die Verwendung von Alkylpolyglucosid und Glycerin allein nicht zu den gewünschten hydrophilen Vliesstoffen führt. Dies belegt, daß nur durch die geeignete Kombination aus quaterniertem Esteraminsalz und Alkylglykosiden die erwünschte hydrophile Ausrüstung erreicht wird.It can be seen that a nonwoven manufactured according to the invention, which with the agent 1 was equipped, also in the fourth measurement with a circulation of 1.0% as well even 0.5% still shows "liquid strike through" times of less than 5 seconds. This The combination of a quaternized esteramine salt and achieved an alkyl polyglucoside, as the nonwoven fabric equipped with preparation 3 shows. Also a nonwoven fabric that is equipped with a commercially available ester ammonium salt like preparation V1, shows good hydrophilization. This equipment remains but not as well preserved with multiple loading, so the "liquid strike through" times become significantly longer in the following measurements. That with the means V2 equipped fleece proves that the use of alkyl polyglucoside and glycerol alone does not lead to the desired hydrophilic nonwovens. This proves that only through the suitable combination of quaternized esteramine salt and alkyl glycosides desired hydrophilic finish is achieved.

    Claims (9)

    1. A process for the hydrophilic finishing of fibers, which exclusively or predominantly contain polyolefins or polyesters, or of nonwovens which predominantly contain fibers such as these, characterized in that the fibers or nonwovens are treated with an aqueous dispersion of a finish which contains 50 to 95% by weight, based on the total weight of the finish, of at least one quaternary ester amine salt corresponding to formula (I):
      Figure 00160001
      in which R1 is an aliphatic alkyl group containing 12 to 22 carbon atoms, R2 is either a group (CH2)n-O-COR1 or an alkyl group containing 12 to 22 carbon atoms, R3 and R4 independently of one another represent a group (CH2)n-R5, where R5 is H or OH and n is a number of 1 to 3, and X is either a halide, methosulfate, methophosphate or phosphate ion,
      5 to 50% by weight of at least one alkyl glycoside corresponding to the general formula RO(G)x, in which R is a primary linear or methyl-branched aliphatic radical containing 8 to 22 carbon atoms, G is a glycoside unit containing 5 or 6 carbon atoms and x is a number of 1 to 10, and 0 to 30% by weight of glycerol.
    2. A process as claimed in claim 1, characterized in that the quaternary ester amine salts used are compounds corresponding to formula (II):
      Figure 00160002
      in which COR6 is an aliphatic acyl group containing 12 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, R7 is H or OH, n has a value of 1, 2 or 3 and X is either a halide, methosulfate, methophosphate or phosphate ion.
    3. A process as claimed in claim 1 or 2, characterized in that the finish contains alkyl glycosides in quantities of 5 to 30% by weight, based on the total weight of the finish.
    4. A process as claimed in any of claims 1 to 3, characterized in that an aqueous dispersion containing between 5 and 30% by weight of the finish, based on the total weight of the dispersion, is used.
    5. A process as claimed in any of claims 1 to 4, characterized in that the mixture contains glycerol in quantities of 1.0 to 15% by weight, based on the total weight of the finish.
    6. Hydrophilically finished fibers exclusively or predominantly containing polyolefins or polyesters or nonwovens predominantly containing such fibers, characterized in that they are produced by the process claimed in any of claims 1 to 5.
    7. Fibers or nonwovens as claimed in claim 6, characterized in that they are finished with an add-on of the finish in quantities of 0.3 to 1.5% by weight and preferably 0.5 to 1.0% by weight, based on the weight of the nonwoven.
    8. Nonwovens as claimed in claim 6 or 7, characterized in that the liquid strike-through time of the nonwovens, as measured by EDANA Method No. 150.0-8, is less than 10 seconds and preferably less than 5 seconds.
    9. Nonwovens as claimed in any of claims 6 to 8, characterized in that after three and preferably five successive measurements of the liquid strike-through time by EDANA Method No. 150.0-84, the nonwovens still have values of less than 10 seconds and preferably less than 5 seconds.
    EP97931816A 1996-07-23 1997-07-15 Process for providing fibres or nonwovens with a hydrophilic coating Expired - Lifetime EP0914513B1 (en)

    Applications Claiming Priority (3)

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    DE19629666A DE19629666A1 (en) 1996-07-23 1996-07-23 Process for the hydrophilic finishing of fibers or nonwovens
    DE19629666 1996-07-23
    PCT/EP1997/003784 WO1998003717A1 (en) 1996-07-23 1997-07-15 Process for providing fibres or nonwovens with a hydrophilic coating

    Publications (2)

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    EP0914513A1 EP0914513A1 (en) 1999-05-12
    EP0914513B1 true EP0914513B1 (en) 2001-10-17

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    EP (1) EP0914513B1 (en)
    KR (1) KR20000067897A (en)
    AT (1) ATE207151T1 (en)
    DE (2) DE19629666A1 (en)
    ES (1) ES2166091T3 (en)
    WO (1) WO1998003717A1 (en)

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    GB9810655D0 (en) * 1998-05-18 1998-07-15 Unilever Plc Stable ammonium compositions
    GB9810656D0 (en) * 1998-05-18 1998-07-15 Unilever Plc Stable ammonium compositions
    US6867344B2 (en) * 1998-10-30 2005-03-15 Kimberly-Clark Worldwide, Inc. Absorbent article with fluid treatment agent
    US6649099B2 (en) 1998-10-30 2003-11-18 Kimberly-Clark Worldwide, Inc. Method of incorporating fluid treatment agents into absorbent composites
    US20030028164A1 (en) * 1998-10-30 2003-02-06 Potts David Charles Absorbent article with fluid treatment agent
    US6350711B1 (en) * 1998-10-30 2002-02-26 Kimberly-Clark Worldwide, Inc. Absorbent article with fluid treatment agent
    WO2000058429A1 (en) * 1999-03-26 2000-10-05 Cognis Corporation Use of an alkyl polyglycoside to enhance the performance of a cationic fabric care product
    JP2002541339A (en) 1999-03-29 2002-12-03 バイエル アクチェンゲゼルシャフト Fabric treatment agent, method for producing the same and use thereof
    JP3404555B2 (en) * 1999-09-24 2003-05-12 チッソ株式会社 Hydrophilic fibers and nonwoven fabrics, processed nonwoven fabrics using them
    US6599521B1 (en) 2000-11-28 2003-07-29 Kimberly-Clark Worldwide, Inc. Absorbent articles for the inhibition of exoprotein production from Gram positive bacteria
    US6656913B1 (en) 2000-11-28 2003-12-02 Kimberly-Clark Worldwide, Inc. Inhibition of exoprotein production from gram positive bacteria
    US6531435B1 (en) * 2000-11-28 2003-03-11 Kimberly-Clark Worldwide, Inc. Compositions for the inhibition of exoprotein production from Gram positive bacteria
    US6676957B1 (en) 2000-11-28 2004-01-13 Kimberly-Clark Worldwide, Inc. Non-absorbent substrates for the inhibition of exoprotein production from gram positive bacteria
    WO2006056706A1 (en) * 2004-11-29 2006-06-01 Rhodia Chimie Compound containing a thermoplastic polymer and hydrophilising agent
    US20090137043A1 (en) * 2007-11-27 2009-05-28 North Carolina State University Methods for modification of polymers, fibers and textile media
    US20100125963A1 (en) * 2008-11-21 2010-05-27 E. I. Du Pont De Nemours And Company Monofilament comprising hydrophilic agent

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    DE4243547C2 (en) 1992-12-22 1994-10-20 Henkel Kgaa Quaternized fatty acid triethanolamine ester salts
    DE4307186A1 (en) * 1993-03-08 1994-09-15 Henkel Kgaa Aqueous fabric softener composition
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    EP0914513A1 (en) 1999-05-12
    KR20000067897A (en) 2000-11-25
    US6177367B1 (en) 2001-01-23
    DE59704991D1 (en) 2001-11-22

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