EP1243689A1 - Procédé d'apprêt antimicrobien de fibres ou non-tissés - Google Patents

Procédé d'apprêt antimicrobien de fibres ou non-tissés Download PDF

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Publication number
EP1243689A1
EP1243689A1 EP01107156A EP01107156A EP1243689A1 EP 1243689 A1 EP1243689 A1 EP 1243689A1 EP 01107156 A EP01107156 A EP 01107156A EP 01107156 A EP01107156 A EP 01107156A EP 1243689 A1 EP1243689 A1 EP 1243689A1
Authority
EP
European Patent Office
Prior art keywords
nonwovens
fibers
oil
acid
antimicrobial
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Withdrawn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
EP01107156A
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German (de)
English (en)
Inventor
Ana Tacies
Marta Domingo
Rafael Pi Subirana
Josep-Lluis Viladot Petit
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 Iberia SL
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Cognis Iberia SL
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 Iberia SL filed Critical Cognis Iberia SL
Priority to EP01107156A priority Critical patent/EP1243689A1/fr
Priority to PCT/EP2002/002733 priority patent/WO2002077359A1/fr
Publication of EP1243689A1 publication Critical patent/EP1243689A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/12Processes in which the treating agent is incorporated in microcapsules
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/18Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/20Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32Polyesters

Definitions

  • the invention is in the field of textile technology and relates to a method for Finishing of fibers and fabrics using special emulsions ("preparations"), Fibers, fabrics and end products made from them, treated with these preparations and the use of the preparations for finishing the fibers and fabrics.
  • preparations special emulsions
  • Fibers, fabrics and end products made from them treated with these preparations and the use of the preparations for finishing the fibers and fabrics.
  • nonwovens are usually made of synthetic fibers such as polyolefin or Polyester fibers are manufactured because these fibers are inexpensive to produce, good mechanical Have properties and in the case of polyolefins are to be thermally solidified.
  • the disadvantage is that the nonwovens used in hygiene articles in direct skin contact stand and are therefore exposed to considerable bacterial contamination. It can therefore in unfavorable cases, e.g. B. in high humidity, to a significant bacterial growth come on the fleece surface. This can be the case with minor injuries, for example the skin surface lead to inflammation of the skin, which must be avoided.
  • the object of the present invention was therefore a method for antimicrobial Finishing of fibers, nonwovens and end products made from them to provide, which reliably avoids the disadvantages of the prior art.
  • it should be ensured that the active ingredient does not suddenly, but is released in portions and with a time delay, so that the equipment over the whole Duration of the wearing process is guaranteed.
  • the antimicrobial equipment also be associated with a care effect.
  • the microcapsules are preferably used as gel formers such substances are considered, which show the property in aqueous solution Temperatures above 40 ° C form gels.
  • Typical examples of this are heteropolysaccharides and proteins.
  • Preferred thermogelating heteropolysaccharides are Agaroses in question, which also in the form of the agar agar to be obtained from red algae can be present together with up to 30% by weight of non-gel-forming agaropectins.
  • the main constituent of the agaroses are linear polysaccharides from D-galactose and 3,6-anhydro-L-galactose, which are linked alternately ⁇ -1,3- and ⁇ -1,4-glycosidically.
  • the heteropolysaccharides preferably have a molecular weight in the range from 110,000 to 160,000 and are both colorless and tasteless.
  • Pectins come as alternatives, Xanthans (also xanthan gum) and their mixtures in question. They are still such Preferred types that still form gels in 1% by weight aqueous solution are not below melt from 80 ° C and solidify again above 40 ° C. From the The various gelatin types are an example of the group of thermogelating proteins called.
  • antimicrobial agents such as those in the field of hygiene products are used are surfactants, emulsifiers, biogenic agents, deodorants and germ-inhibiting Agents and perfume oils.
  • the level of antimicrobial is apparent to those skilled in the art Efficacy is different in the groups of substances mentioned. However, the additional caring effects may reduce effectiveness Characteristics balanced.
  • Anionic, nonionic, cationic and / or amphoteric or amphoteric surfactants may be present as surface-active substances, the proportion of which in the compositions is usually about 1 to 70, preferably 5 to 50 and in particular 10 to 30% by weight.
  • anionic surfactants are soaps, alkylbenzene sulfonates, alkane sulfonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, ⁇ -methyl ester sulfonates, sulfo fatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, fatty acid ether sulfates, mono-ether ether sulfate, (hydroxymethoglysulfate), monohydric ether sulfate dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, ether carboxylic acids and salts thereof, fatty acid taurides, N-acylamino acids such as acyl lactylates, acy
  • nonionic surfactants are fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide polyglycol ethers, fatty amine polyglycol ethers, alkoxylated triglycerides, mixed ethers or mixed formals, optionally partially oxidized alk (en) yl oligoglycosides or especially glucoramide-acid-based vegetable derivatives, , Polyol fatty acid esters, sugar esters, sorbitan esters, polysorbates and amine oxides.
  • nonionic surfactants contain polyglycol ether chains, these can have a conventional, but preferably a narrow, homolog distribution.
  • cationic surfactants are quaternary ammonium compounds, such as, for example, dimethyldistearylammonium chloride, and esterquats, in particular quaternized fatty acid trialkanolamine ester salts.
  • amphoteric or zwitterionic surfactants are alkyl betaines, alkyl amido betaines, aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines. The surfactants mentioned are exclusively known compounds.
  • Typical examples of particularly suitable mild, ie particularly skin-compatible, surfactants are fatty alcohol polyglycol ether sulfates, monoglyceride sulfates, mono- and / or dialkyl sulfosuccinates, fatty acid taurides, fatty acid glutamates, ⁇ -olefin sulfonates, ethercarboxylic acids, alkyl oligoglucosides, fatty acid glucamides, alkylamidobetaines, amphoacetals and / or protein fatty acid condensates, preferably based on wheat proteins. Because of their mild biocidal action, cationic surfactants, especially those with an ester quat structure, are also frequently used.
  • Suitable emulsifiers are, for example, nonionic surfactants from at least one of the following groups: addition products of 2 to 30 mol of ethylene oxide and / or 0 to 5 mol of propylene oxide with linear fatty alcohols with 8 to 22 C atoms, with fatty acids with 12 to 22 C atoms , on alkylphenols with 8 to 15 carbon atoms in the alkyl group and alkylamines with 8 to 22 carbon atoms in the alkyl radical; Alkyl and / or alkenyl oligoglycosides with 8 to 22 carbon atoms in the alk (en) yl radical and their ethoxylated analogs; Addition products of 1 to 15 moles of ethylene oxide with castor oil and / or hardened castor oil; Addition products of 15 to 60 moles of ethylene oxide with castor oil and / or hardened castor oil; Partial esters of glycerol and / or sorbitan with unsaturated, linear or saturated
  • alkyl glucosides e.g. methyl glucoside, butyl glucoside, lauryl glucoside
  • polyglucosaturated e.g. cellulose
  • unsaturated e.g.
  • cellulose linear or branched fatty acids with 12 to 22 carbon atoms and / or hydroxycarboxylic acids with 3 to 18 carbon atoms and their adducts with 1 to 30 moles of ethylene oxide; Mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol according to DE 1165574 PS and / or mixed esters of fatty acids with 6 to 22 carbon atoms, methyl glucose and polyols, preferably glycerol or polyglycerol; Mono-, di- and trialkyl phosphates as well as mono-, di- and / or tri-PEG-alkyl phosphates and their salts; Lanolin alcohol; Polysiloxane-polyalkyl-polyether copolymers or corresponding derivatives; Block copolymers, for example polyethylene glycol 30 dipolyhydroxystearate; Polymer emulsifiers, for example Pemulen types (TR-1, TR-2) from Goodrich; Polyal
  • the adducts of ethylene oxide and / or of propylene oxide with fatty alcohols, fatty acids, alkylphenols or with castor oil are known, commercially available products. These are mixtures of homologs whose average degree of alkoxylation is the ratio of the amounts of ethylene oxide and / or propylene oxide and substrate, with which the addition reaction is carried out.
  • C 12/18 fatty acid monoesters and diesters of adducts of ethylene oxide with glycerol are known from DE 2024051 PS as refatting agents for cosmetic preparations.
  • Alkyl and / or alkenyl oligoglycosides their preparation and their use are out known in the art. They are manufactured in particular through implementation of glucose or oligosaccharides with primary alcohols with 8 to 18 carbon atoms.
  • Glycosidrestes applies that both monoglycosides in which a cyclic sugar residue is glycosidically bound to the fatty alcohol, as well as oligomeric Glycosides with a degree of oligomerization of up to preferably about 8 are suitable.
  • the Degree of oligomerization is a statistical mean, one for such technical Products based on the usual homolog distribution.
  • Typical examples of suitable partial glycerides are hydroxystearic acid monoglyceride, Hydroxystearic acid diglyceride, isostearic acid monoglyceride, isostearic acid diglyceride, Oleic acid monoglyceride, oleic acid diglyceride, ricinoleic acid moglyceride, ricinoleic acid diglyceride, Linoleic acid monoglyceride, linoleic acid diglyceride, linolenic acid monoglyceride, linolenic acid diglyceride, Erucic acid monoglyceride, erucic acid diglyceride, tartaric acid monoglyceride, Tartaric acid diglyceride, citric acid monoglyceride, citric diglyceride, malic acid monoglyceride, Malic acid diglyceride and their technical mixtures, the subordinate may still contain small amounts of triglyceride from the manufacturing process. Likewise Addition products of
  • polyglycerol esters are polyglyceryl-2 dipolyhydroxystearates (Dehymuls® PGPH), polyglycerol-3-diisostearate (Lameform® TGI), polyglyceryl-4 Isostearate (Isolan® GI 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan® PDI), polyglyceryl-3 methylglucose distearate (Tego Care® 450), Polyglyceryl-3 Beeswax (Cera Bellina®), Polyglyceryl-4 Caprate (Polyglycerol Caprate T2010 / 90), Polyglyceryl-3 Cetyl Ether (Chimexane® NL), Polyglyceryl-3 Distearate (Cremophor® GS 32) and Polyglyceryl Polyricinoleate (Admul® WOL 1403) Polyglyceryl Dimerate isost
  • polystyrene resin examples include the mono-, di- and optionally reacted with 1 to 30 mol ethylene oxide Triester of trimethylolpropane or pentaerythritol with lauric acid, coconut fatty acid, Tallow fatty acid, palmitic acid, stearic acid, oleic acid, behenic acid and the like.
  • Typical anionic emulsifiers are aliphatic fatty acids with 12 to 22 carbon atoms, such as palmitic acid, stearic acid or behenic acid, and dicarboxylic acids with 12 to 22 carbon atoms, such as azelaic acid or Sebacic acid.
  • Zwitterionic surfactants can also be used as emulsifiers.
  • Zwitterionic surfactants are those surface-active compounds which carry at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule.
  • Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylammonium glycinate, for example coconut alkyldimethylammonium glycinate, N-acylaminopropyl-N, N-dimethylammonium glycinate, for example coconut acylaminopropyldimethylammonium glycinate, and 2-alkyl-3-carboxylm -hydroxyethylimidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group and the cocoacylaminoethylhydroxyethylcarboxymethylglycinate.
  • betaines such as the N-alkyl-N, N-dimethylammonium glycinate, for example coconut alkyldimethylammonium glycinate, N-acylaminopropyl-N, N-dimethylammonium glycinate, for example
  • Suitable emulsifiers are ampholytic surfactants.
  • Ampholytic surfactants are surface-active compounds which, in addition to a C 8/18 alkyl or acyl group, contain at least one free amino group and at least one -COOH or -SO 3 H group in the molecule and are capable of forming internal salts.
  • ampholytic surfactants are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids each with about 8 to 18 carbon atoms in the alkyl group.
  • Particularly preferred ampholytic surfactants are N-coconut alkyl aminopropionate, coconut acyl aminoethyl aminopropionate and C 12/18 acyl sarcosine.
  • cationic surfactants are also suitable as emulsifiers, those of the esterquat type, preferably methylquaternized difatty acid triethanolamine ester salts, being particularly preferred.
  • biogenic active ingredients examples include tocopherol, tocopherol acetate, tocopherol palmitate, Ascorbic acid, deoxyribonucleic acid, retinol, retinyl palmitate, bisabolol, Allantoin, phytantriol, panthenol, chitosan, menthol, tea tree oil, AHA acids, kojic acid, Amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes to understand.
  • deodorants counteract body odors, mask them or eliminate them. Body odors arise from the action of skin bacteria on apocrine sweat, forming unpleasant smelling breakdown products become. Accordingly, deodorants contain active ingredients that are considered germ-inhibiting Agents, enzyme inhibitors, odor absorbers or odor maskers act.
  • Esterase inhibitors are suitable as enzyme inhibitors. This is about it is preferably trialkyl citrates such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, Tributyl citrate and especially triethyl citrate (Hydagen® CAT, Henkel KGaA, Düsseldorf / FRG).
  • the substances inhibit enzyme activity and thereby reduce odor.
  • esterase inhibitors include sterolsulfates or phosphates, such as lanosterol, cholesterol, campesterol, Stigmasterol and sitosterol sulfate or phosphate, dicarboxylic acids and their esters, such as for example glutaric acid, glutaric acid monoethyl ester, glutaric acid diethyl ester, adipic acid, Monoethyl adipate, diethyl adipate, malonic acid and diethyl malonate, Hydroxycarboxylic acids and their esters such as citric acid, Malic acid, tartaric acid or tartaric acid diethyl ester, as well as zinc glycinate.
  • sterolsulfates or phosphates such as lanosterol, cholesterol, campesterol, Stigmasterol and sitosterol sulfate or phosphate
  • dicarboxylic acids and their esters such as for example glutaric acid, glutaric acid monoethyl
  • Substances which absorb odor-forming compounds are suitable as odor absorbers and can hold on to a large extent. They reduce the partial pressure of the individual components and thus reduce their speed of propagation. It is important that Perfumes must remain unaffected. Odor absorbers have no effectiveness against bacteria. For example, they contain a complex zinc salt as the main component the ricinoleic acid or special, largely odorless fragrances that the Are known in the art as "fixators" such. B. extracts of Labdanum or Styrax or certain abietic acid derivatives. Fragrances or act as odor maskers Perfume oils that, in addition to their function as odor maskers, deodorants their give each fragrance note. Mixtures may be mentioned as perfume oils from natural and synthetic fragrances.
  • Natural fragrances are extracts of flowers, stems and leaves, fruits, fruit peels, roots, woods, herbs and grasses, needles and twigs as well as resins and balms. Furthermore come animal Raw materials in question, such as civet and castoreum.
  • Typical synthetic Fragrance compounds are products of the ester, ether, aldehyde, ketone, Alcohols and hydrocarbons. Fragrance compounds of the ester type are e.g.
  • ethers include, for example, benzyl ethyl ether, the aldehydes e.g.
  • the linear Alkanals with 8 to 18 carbon atoms citral, citronellal, citronellyloxyacetaldehyde, Cyclamenaldehyde, Hydroxycitronellal, Lilial and Bourgeonal, to the ketones e.g. the Jonone and methyl cedryl ketone, to the alcohols anethole, citronellol, eugenol, isoeugenol, Geraniol, linalool, phenylethyl alcohol and terpineol, to the hydrocarbons belong mainly to the terpenes and balms. However, mixtures are preferred different fragrances are used, which together produce an appealing fragrance.
  • perfume oils e.g. Sage oil, chamomile oil, clove oil, lemon balm oil, Mint oil, cinnamon leaf oil, linden blossom oil, juniper berry oil, vetiver oil, oliban oil, Galbanum oil, Labdanum oil and Lavandin oil.
  • Natural fragrances are extracts from Flowers (lily, lavender, roses, jasmine, neroli, ylang-ylang), stems and leaves (geranium, Patchouli, Petitgrain), fruits (anise, coriander, caraway, juniper), fruit peels (Bergamot, lemon, oranges), roots (mace, angelica, celery, cardamom, Costus, Iris, Calmus), woods (pine, sandal, guaiac, cedar, rosewood), herbs and grasses (tarragon, lemongrass, sage, thyme), needles and twigs (spruce, Fir, pine, mountain pine), resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, Opoponax).
  • fragrance compounds are products from Type of esters, ethers, aldehydes, ketones, alcohols and hydrocarbons.
  • fragrance compounds of the ester type are e.g. Benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, Linalyl acetate, dimethylbenzylcarbinylacetate, phenylethyl acetate, Linalyl benzoate, benzyl formate, ethyl methylphenyl glycinate, allyl cyclohexyl propionate, styrallyl propionate and benzyl salicylate.
  • the ethers include, for example, benzyl ethyl ether, to aldehydes e.g. the linear alkanals with 8 to 18 carbon atoms, Citral, Citronellal, Citronellyloxyacetaldehyde, Cyclamenaldehyde, Hydroxycitronellal, Lilial and bourgeonal, to the ketones e.g.
  • the hydrocarbons mainly include the terpenes and balms.
  • mixtures of different are preferred Fragrances are used, which together produce an appealing fragrance.
  • ethereal Low volatility oils which are mostly used as aroma components, are suitable as perfume oils, e.g.
  • Sage oil chamomile oil, clove oil, lemon balm oil, mint oil, Cinnamon leaf oil, linden blossom oil, juniper berry oil, vetiver oil, oliban oil, galbanum oil, labolanum oil and lavandin oil.
  • the active substances can be used in such quantities that they are contained in the microcapsules a content of 5 to 60, preferably 10 to 50 and in particular 15 to 25% by weight results.
  • esters of linear C 6 -C 22 fatty acids with linear or branched C 6 -C 22 fatty alcohols or esters of branched C 6 -C 4 come as oil bodies, for example 13 -carboxylic acids with linear or branched C 6 -C 22 -fatty alcohols, such as myristyl myristate, myristyl palmitate, myristyl stearate, Myristylisostearat, myristyl, Myristylbehenat, Myristylerucat, cetyl myristate, cetyl palmitate, cetyl stearate, Cetylisostearat, cetyl oleate, cetyl behenate, Cetylerucat, Stearylmyristat, stearyl palmitate, stearyl stearate , sostearylisostearat I-Stearylisostearat
  • esters of linear C 6 -C 22 fatty acids with branched alcohols in particular 2-ethylhexanol
  • esters of C 18 -C 38 alkylhydroxycarboxylic acids with linear or branched C 6 -C 22 fatty alcohols cf.
  • dioctyl malates esters of linear and / or branched fatty acids with polyhydric alcohols (such as propylene glycol, dimer diol or trimer triol) and / or Guerbet alcohols, triglycerides based on C 6 -C 10 fatty acids, liquid mono- / di- / triglyceride mixtures based of C 6 -C 18 fatty acids, esters of C 6 -C 22 fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, in particular benzoic acid, esters of C 2 -C 12 dicarboxylic acids with linear or branched alcohols with 1 to 22 carbon atoms or polyols with 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C 6 -C 22 fatty alcohol carbonates, such as Di caprylyl carbonates (
  • the emulsions To prepare the emulsions, it is advisable to encapsulate the active ingredients in the Gel matrix due to elevated temperatures, for example from 50 to 95 and in particular 60 up to 80 ° C. After stirring, it has also proven to be advantageous leave the preparations to their own devices for a period of 15 to 20 minutes. Subsequently they can then be entered in the desired amount in the oil phase.
  • the emulsions can then in amounts of active substance from 0.1 to 10, preferably 0.2 to 5 and in particular 0.5 to 2 wt .-% - based on the fiber or nonwoven fabric weight - used become.
  • Polyolefin fibers are among the most commonly used to make nonwovens Fibers.
  • suitable polyolefins are polypropylene, polyethylene or copolymers from ethylene or propylene with butadiene.
  • polyester fibers are also mainly used Polyethylene terephthalate fibers used.
  • fibers consisting of two are also particularly suitable or more components, for example polyester copolyester fibers or polypropylene polyethylene fibers.
  • 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 connected, 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 joined together at the contact points, or the fibers are coated with an additive that melts during the heat treatment and thus connects the individual fibers together.
  • connection is fixed by cooling. In addition to this procedure, of course, too all other methods suitable in the prior art for bonding nonwovens be used.
  • Spunbond formation starts from individual filaments, which after the Melt spinning processes are formed from extruded polymers, which under high Pressure is pressed through spinnerets.
  • the filaments emerging from the spinnerets are bundled, stretched and laid down to form a fleece, which is usually by "thermobonding" is solidified.
  • the method according to the invention is particularly suitable for nonwovens that are manufactured according to the spunbonded or "dry laid" process.
  • aqueous emulsions are made according to the inventive method applied to the untreated nonwoven or the fibers. All in methods and machines customary in textile technology, for example a foulard, are used spraying or a roller application or pen application is also possible. The fibers or nonwovens are then dried and processed
  • Another object of the invention therefore relates to antimicrobial fibers, which consist wholly or predominantly of polyolefins or polyesters or nonwovens which predominantly contain such fibers, and are characterized by the fact that equipment be prepared with the aqueous emulsions.
  • the equipment can be ordered the emulsions (active substance) in amounts of 0.1 to 10 wt .-% - based on the fiber or Nonwoven weight - done.
  • the invention also relates to hygiene products, such as feminine hygiene articles, diapers or wipes that are characterized by the fact that they are equipped as explained above Nonwovens included.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Cosmetics (AREA)
EP01107156A 2001-03-22 2001-03-22 Procédé d'apprêt antimicrobien de fibres ou non-tissés Withdrawn EP1243689A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01107156A EP1243689A1 (fr) 2001-03-22 2001-03-22 Procédé d'apprêt antimicrobien de fibres ou non-tissés
PCT/EP2002/002733 WO2002077359A1 (fr) 2001-03-22 2002-03-13 Procede d'appretage antimicrobien de fibres ou de non tisses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01107156A EP1243689A1 (fr) 2001-03-22 2001-03-22 Procédé d'apprêt antimicrobien de fibres ou non-tissés

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EP1243689A1 true EP1243689A1 (fr) 2002-09-25

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585998A (en) * 1968-03-29 1971-06-22 Ncr Co Disposable diaper with rupturable capsules
WO1995017091A1 (fr) * 1993-12-23 1995-06-29 Tucci Associates, Inc. Formulations a liberation lente repoussant les insectes et leurs utilisations
EP1064910A1 (fr) * 1999-07-02 2001-01-03 Primacare S.A. Microcapsules

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585998A (en) * 1968-03-29 1971-06-22 Ncr Co Disposable diaper with rupturable capsules
WO1995017091A1 (fr) * 1993-12-23 1995-06-29 Tucci Associates, Inc. Formulations a liberation lente repoussant les insectes et leurs utilisations
EP1064910A1 (fr) * 1999-07-02 2001-01-03 Primacare S.A. Microcapsules

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