EP1358383A2 - Procede servant a doter des fibres ou des tissus non tisses d'un appret anti-bacterien - Google Patents

Procede servant a doter des fibres ou des tissus non tisses d'un appret anti-bacterien

Info

Publication number
EP1358383A2
EP1358383A2 EP02718056A EP02718056A EP1358383A2 EP 1358383 A2 EP1358383 A2 EP 1358383A2 EP 02718056 A EP02718056 A EP 02718056A EP 02718056 A EP02718056 A EP 02718056A EP 1358383 A2 EP1358383 A2 EP 1358383A2
Authority
EP
European Patent Office
Prior art keywords
fibers
nonwovens
weight
contain
predominantly
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.)
Withdrawn
Application number
EP02718056A
Other languages
German (de)
English (en)
Inventor
Christine Wild
Raymond Mathis
Edda Schirmer
Rolf Stein
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.)
Cognis IP Management GmbH
Original Assignee
Cognis Deutschland GmbH and Co KG
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 Cognis Deutschland GmbH and Co KG filed Critical Cognis Deutschland GmbH and Co KG
Publication of EP1358383A2 publication Critical patent/EP1358383A2/fr
Withdrawn legal-status Critical Current

Links

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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/28—Polysaccharides or their derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • 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
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D06M13/2243—Mono-, di-, or triglycerides
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/22—Lipids, fatty acids, e.g. prostaglandins, oils, fats, waxes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/23—Carbohydrates
    • A61L2300/232—Monosaccharides, disaccharides, polysaccharides, lipopolysaccharides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/45—Mixtures of two or more drugs, e.g. synergistic mixtures
    • 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
    • D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
    • 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
    • Y10T428/2938—Coating on discrete and individual rods, strands or filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y10T428/2969—Polyamide, polyimide or polyester
    • 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
    • Y10T442/2508—Coating or impregnation absorbs chemical material other than water
    • 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
    • Y10T442/2525—Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]

Definitions

  • the present application relates to a process for the antibacterial finishing of fibers or non-woven materials which contain exclusively or predominantly polyolefins and polyester, and fibers or non-flowing materials which have been finished by this process, and the use of a combination of glycerol monoesters with chitosan for the antibacterial finishing of fibers,
  • absorbent materials are used to absorb aqueous liquids.
  • this material is covered with a thin, water-permeable nonwoven.
  • nonwovens are usually made from synthetic fibers, such as polyolefin or polyester fibers, since these fibers are inexpensive to produce, have good mechanical properties and, in the case of polyolefins, can be thermally bonded.
  • untreated polyolefin or polyester fibers are not suitable for this purpose, because their hydrophobic surface means that they do not have sufficient permeability to aqueous liquids.
  • the fiber surface must be made hydrophilic by an appropriate preparation.
  • hydrophilic finishing of fibers is maintained for as long as possible without the water permeability of the nonwoven being reduced.
  • B. US 5,045,387 contains an agent for the hydrophilic finishing of polyolefin fibers, a mixture of an alkoxylated ricinoleic acid derivative, a hydrogenated ricinoleic acid derivative, a Ci ⁇ fatty acid and a polyalkoxylated polymethylsiloxane.
  • EP 395 099 A2 discloses absorbent materials, in particular tampons made from Ryon or polyester fibers, which are equipped with glycerol monolaurate as a bacteriostatic, toxin-inhibiting component are. At this point, however, hydrophilization of the fiber materials is not described.
  • WO 98/03716 proposes a combination of glycerol monoesters with alkyl polyglycosides for the hydrophilic finishing of fibers or nonwovens. At no point in this document is the problem of bacterial contamination mentioned.
  • the object of the present invention was to provide nonwovens that on the one hand meet the requirements for the permanence of the hydrophilic finish and in particular can effectively suppress the growth of harmful bacteria.
  • the present task is solved by the combination of an antibacterial substance known per se with chitosan.
  • the first subject of the present application relates to a process for the antibacterial finishing of fibers which exclusively or predominantly contain polyolefins or polyester or nonwovens which predominantly contain such fibers, the fibers or nonwovens being treated with an aqueous agent which
  • the process according to the invention is suitable for fibers which contain exclusively or predominantly, that is to say more than 50% by weight, polyolefins or polyesters and for nonwovens which predominantly contain such fibers, fibers which exclusively contain polyolefins or polyesters being preferred , Nonwovens consisting of 100% by weight of polyolefin or polyester fibers are particularly suitable.
  • Polyolefin fibers are one of the most common fibers used to manufacture nonwovens.
  • suitable polyolefins are polypropylene, polyethylene or copolymers of ethylene or propylene with butadiene.
  • Polyester fibers mainly polyethylene terephthalate fibers, are also used.
  • other synthetic fibers suitable for producing nonwovens can also be used, for example fibers made of Nylon® . Fibers consisting of two or more components are also particularly suitable, 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” or the spunbonded or spunbond process are preferred.
  • the "dry Iaid” process is based on staple fibers, which are usually separated into individual fibers by carding and then using one aerodynamic or hydrodynamic processes are combined to form the unconsolidated nonwoven.
  • thermobonding This is then bonded, for example, to the finished nonwoven by a thermal treatment (the so-called “thermobonding”).
  • the synthetic fibers are either heated to such an extent that their surface melts and the individual fibers are bonded to one another at the contact points, or the fibers are mixed with an additive coated, which melts during the heat treatment and thus connects the individual fibers to one another.
  • the connection is fixed by cooling.
  • all other methods which are used in the prior art for connecting nonwovens are 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 nonwoven which is usually consolidated by "thermobonding".
  • the process according to the invention is particularly suitable for nonwovens which are produced by the spunbonded or the "dry Iaid" process.
  • the fibers or nonwovens are finished with a preparation which contains at least one monoester of glycerol and a C6-14 fatty acid, and chitosan. This aqueous preparation is applied to the untreated nonwoven or the fibers by the process according to the invention.
  • the process according to the invention is preferably designed such that the fibers or nonwovens support the preparation, based on the active substance, in amounts of 0.3 to 2.0% by weight, in particular 0.25 to 1.5% by weight and very particularly preferably 0.4 to 0.8% by weight, based in each case on the fiber or nonwoven fabric weight.
  • the fibers or nonwovens are then dried and processed.
  • the aqueous agents themselves are in the form of a solution or emulsion, the monoglycerides having an " emulsifying effect.
  • the aqueous agents used in the process according to the invention contain at least one monoester of glycerol and a C ⁇ -w fatty acid.
  • the proportion of the monoglyceride is at least 0.1% by weight, based on the total weight of the agent.
  • the upper limit is 10% by weight.
  • the agents used in the process according to the invention preferably contain the monoglycerides in amounts of 0.1 to 1.0% by weight.
  • the fatty acid glycerides should be of the highest possible purity, that is to say the proportion of di- or triesters composed of glycerol and fatty acid should be as low as possible. Mixtures of different monoglycerides can also be used.
  • Suitable fatty acids are, for example, capronic, caprylic, capric, lauric and myristic acid.
  • a preferred ester is the monoester of glycerol and lauric acid, the glycerol monolaurate.
  • the water content of the compositions is 99% by weight and can be reduced to 10% by weight. However, the water content preferably ranges from 99 to 80% by weight and in particular from 99 to 95% by weight. It is preferred to use deionized or osmosis water.
  • a second essential component of the preparations according to the invention is chitosan.
  • Chitosans are biopolymers and belong to the group of hydrocolloids. From a chemical point of view, these are partially deacetylated chitins of different molecular weights that contain the following - idealized - monomer unit:
  • chitosans are cationic biopolymers under these conditions.
  • the positively charged chitosans can interact with oppositely charged surfaces and are therefore used in cosmetic hair and body care products and pharmaceuticals Preparations used (see. Ullmann 's Encyclopedia of Industrial Chemistry, 5th Ed., Vol. A6, Weinheim, Verlag Chemie, 1986, pp. 231-232).
  • Overviews on this topic are also available, for example, from B. Gesslein et al. in HAPPI 27, 57 (1990), 0. Skaugrud in Drug Cosm. Ind. 148: 24 (1991) and E. Onsoyen et al.
  • chitosans is based on chitin, preferably the shell remains of crustaceans, which are available in large quantities as cheap raw materials.
  • the chitin is used in a process that was first developed by Hackmann et al. has been described, usually first deproteinized by adding bases, demineralized by adding mineral acids and finally deacetylated by adding strong bases, it being possible for the molecular weights to be distributed over a broad spectrum.
  • Appropriate methods are, for example, made from Makromol. Chem. 177, 3589 (1976) or French patent application FR 2701266 A.
  • Such types are preferably used as are disclosed in German patent applications DE 4442987 A1 and DE 19537001 A1 and which have an average molecular weight of 10,000 to 5,000,000 Daltons, in particular 10,000 to 500,000 or 800,000 to 1,200,000 Daltons and / or one Brookfield viscosity (1% by weight in glycolic acid) below 5000 mPas, a degree of deacetylation in the range from 80 to 88% and an ash content of less than 0.3% by weight.
  • chitosans with an average molecular weight of 10,000 to 5,000,000 daltons are used, in a preferred embodiment chitosans with an average molecular weight of 30,000 to 1,000,000 daltons are used, furthermore chitosans with a molecular weight of 40,000 to 500,000 daltons are particularly preferred are chitosans with a molecular weight of 50,000 to 100,000 daltons.
  • anionically or nonionically derivatized chitosans such as carboxylation, succinylation or alkoxylation products, as described, for example, in German patent application DE 19604180 A1 are also suitable for the purposes of the invention.
  • the amount used in the agents used according to the invention is in the range from 0.01 to a maximum of 10% by weight, based on the aqueous agent. Preferred ranges are 0.5 to 5.0% by weight, and preferably 1.0 to 2.5% by weight.
  • compositions for example antistatic agents or lubricants and pH regulators, lubricants, antistatic agents, emulsifiers and skin protection additives, e.g. Aloe Vera or Bisabolene.
  • auxiliaries are usually used in amounts of up to at most 20% by weight, based on the total weight of the compositions. Quantities in the range from 0.1 to 10% by weight and in particular from 1.0 to 5% by weight are preferred.
  • the pH of the agents used according to the invention is between 4 and 7, preferably in the weakly acidic range, ie from 5 to 6.
  • COR 1 is an aliphatic acyl radical with 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds and R 2 is H or OH and R 3 is an alkyl radical with 12 to 22 carbon atoms or preferably a radical (CH2)
  • n-0- COR 1 means, where n is 1, 2 or 3 and X is either a halide, methosulfate, methophosphate or phosphate ion, in amounts between 0.5 and 2.5% by weight, based on the total amount of aqueous agent.
  • the agents used according to the invention are preferably produced by simply stirring the ingredients at room temperature (21 ° C.). Depending on the raw materials used, higher temperatures may also be necessary during production, for example in the range from 40 to 90 ° C.
  • antibacterial fibers which exclusively or predominantly contain polyolefins or polyester or nonwovens which predominantly contain fibers which are produced by the process according to the invention are claimed.
  • the fibers or nonwovens also have hydrophilic properties, which are preferably retained even after repeated wetting.
  • the Nonwovens produced according to the invention have “liquid strike through” times of less than 10 seconds and in particular less than 5 seconds.
  • liquid strike-through times are understood to mean the times that a certain amount of water or artificial urine requires in order to reach an absorbent underlayer through the fleece. This time is determined according to the EDANA (European Association of Nonwovens Manufacturers) test method 150.0-84.
  • the "liquid strike through” time should be as short as possible in order to ensure that the liquid can be transported quickly through the fleece to the absorbent material.
  • the fleece surface remains dry and thus leads to increased wearing comfort
  • the nonwovens produced according to the invention retain this favorable property even when used several times and are further distinguished by the fact that they are preferably used three times, in particular five times after, to determine the ⁇ liqüid strike " through” time according to the EDANA test method 150.0- 8, in any case have a "liquid strike through" time of less than 10 seconds, in particular less than 5 seconds.
  • hygiene articles in particular for feminine hygiene, such as diapers, tampons, panty liners or even wipes, which contain nonwovens produced according to the invention are claimed.
  • the nonwovens according to the present technical teaching are characterized by a broad antibacterial effect against Staphylococcus aureus and Klebsieila pneumonia. The latter are responsible for pneumonia or inflammation of the urinary tract and often occur in older people who are incontinent and therefore have to use appropriate products for hygiene.
  • Stantex S 6327 is a product of the applicant, which contains a combination of castor ethoxylates with PEG diester.
  • Hydagen CMF is an aqueous chitosan solution from the applicant with chitosan in the range of MG 50,000 to 100,000.
  • product 1 namely glycerol monolaurate (GML) in combination with chitosan (Hydagen CMF) has an inhibiting effect both against Staphylococcus aureus and against Klebsiella pneumoniae.
  • GML glycerol monolaurate
  • Hydagen CMF chitosan

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

La présente invention concerne un procédé servant à doter des fibres ou des tissus non tissés d'un apprêt anti-bactérien, lesdites fibres ou lesdits tissus étant enduits d'une couche de monoesters de glycérine et de chitosanes.
EP02718056A 2001-02-08 2002-01-30 Procede servant a doter des fibres ou des tissus non tisses d'un appret anti-bacterien Withdrawn EP1358383A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10105623A DE10105623A1 (de) 2001-02-08 2001-02-08 Verfahren zur antibakteriellen Ausrüstung von Fasern oder Vliesstoffen
DE10105623 2001-02-08
PCT/EP2002/000921 WO2002063090A2 (fr) 2001-02-08 2002-01-30 Procede servant a doter des fibres ou des tissus non tisses d'un appret anti-bacterien

Publications (1)

Publication Number Publication Date
EP1358383A2 true EP1358383A2 (fr) 2003-11-05

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EP02718056A Withdrawn EP1358383A2 (fr) 2001-02-08 2002-01-30 Procede servant a doter des fibres ou des tissus non tisses d'un appret anti-bacterien

Country Status (4)

Country Link
US (1) US6936345B2 (fr)
EP (1) EP1358383A2 (fr)
DE (1) DE10105623A1 (fr)
WO (1) WO2002063090A2 (fr)

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US6667290B2 (en) 2001-09-19 2003-12-23 Jeffrey S. Svendsen Substrate treated with a binder comprising positive or neutral ions
US20070020316A1 (en) * 2005-07-13 2007-01-25 Raviv Laor Personal topical disinfectant device
WO2010059904A1 (fr) 2008-11-21 2010-05-27 Mcneil-Ppc, Inc. Emplacement d'esters d'acide gras sur tampon et efficacité d'inhibition de toxine
CN107205853A (zh) 2014-11-14 2017-09-26 阿坦斯医疗保健产品公司 不含合成表面活性剂的面漆、具有不含合成表面活性剂的面漆的片层、具有包含不含合成表面活性剂的面漆的片层的制品和相关方法
US10765569B2 (en) 2014-11-14 2020-09-08 Attends Healthcare Products, Inc. Synthetic surfactant-free finish, sheet having synthetic surfactant-free finish, articles having sheet with synthetic surfactant-free finish, and related methods

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See references of WO02063090A2 *

Also Published As

Publication number Publication date
WO2002063090A3 (fr) 2002-09-26
DE10105623A1 (de) 2002-08-14
US6936345B2 (en) 2005-08-30
US20040072489A1 (en) 2004-04-15
WO2002063090A2 (fr) 2002-08-15

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