WO2016102469A1 - Composition d'apprêt destinée à conférer des propriétés hydrophiles permanentes à des fibres textiles et des produits textiles - Google Patents

Composition d'apprêt destinée à conférer des propriétés hydrophiles permanentes à des fibres textiles et des produits textiles Download PDF

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Publication number
WO2016102469A1
WO2016102469A1 PCT/EP2015/080796 EP2015080796W WO2016102469A1 WO 2016102469 A1 WO2016102469 A1 WO 2016102469A1 EP 2015080796 W EP2015080796 W EP 2015080796W WO 2016102469 A1 WO2016102469 A1 WO 2016102469A1
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Prior art keywords
composition according
composition
fibers
group
filaments
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PCT/EP2015/080796
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German (de)
English (en)
Inventor
Christine Wild
Wolfgang Warncke
Michaela MUNZAR
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Schill + Seilacher Gmbh
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Application filed by Schill + Seilacher Gmbh filed Critical Schill + Seilacher Gmbh
Priority to US15/527,445 priority Critical patent/US20170362770A1/en
Priority to CN201580070364.XA priority patent/CN107109776A/zh
Publication of WO2016102469A1 publication Critical patent/WO2016102469A1/fr

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    • 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
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
    • D06M11/72—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with metaphosphoric acids or their salts; with polyphosphoric acids or their salts; with perphosphoric acids or their salts
    • 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
    • D06M13/244—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 sulfur or phosphorus
    • D06M13/248—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 sulfur or phosphorus with compounds containing sulfur
    • D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
    • 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
    • D06M13/244—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 sulfur or phosphorus
    • D06M13/282—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 sulfur or phosphorus with compounds containing phosphorus
    • D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts 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
    • 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
    • D06M13/402—Amides imides, sulfamic acids
    • 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
    • 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
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
    • D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
    • 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

Definitions

  • composition for permanent hydrophilic finishing of textile fibers and textile products Composition for permanent hydrophilic finishing of textile fibers and textile products
  • the invention relates to a composition for the permanent hydrophilic finish of textile fibers and textile products made thereof, such as nonwovens.
  • nonwovens For the production of nonwovens various methods are available. When spunbonding by spunbond process or melt-blow process the filaments formed by the melt spinning process from extruded polymers are forced under high pressure through spinnerets, stretched in a hot or cold air stream and deposited into a nonwoven. The nonwoven fabric can be subsequently solidified chemically, mechanically or thermally. In the production of dry nonwovens staple fibers are used, which are first carded to form a batt and then solidified chemically, mechanically or thermally. Hydrophilic nonwovens are used in particular as cover fleeces or as intermediate fleeces for hygiene articles such as baby diapers, sanitary napkins, incontinence products and similar products.
  • Such webs have the task to forward body fluids such as urine and blood quickly to the underlying absorption layer.
  • fibers or filaments of thermoplastic polymers such as polyolefin or polyester are mostly used.
  • these polymers are hydrophobic and therefore have to be rendered hydrophilic either during fiber production and / or further processing into nonwoven fabric.
  • the hydrophilization is carried out by treating the filaments with known spin finishes, which can then be further processed into staple fibers and / or directly into nonwoven fabrics. It is also more usual to treat the nonwovens before further processing into a hygiene article with a hydrophilic finishing agent as a so-called "top coat".
  • hydrophilic spin finish or a hydrophilic finishing agent The treatment of the hydrophobic fibers, filaments or nonwovens with a hydrophilic spin finish or a hydrophilic finishing agent is intended to give as long as possible a lasting hydrophilicity over the longest possible period of use of the nonwoven.
  • the hydrophilic spin finish or the finishing agent should therefore adhere well to the hydrophobic web and not or only slightly washed out by liquids.
  • Modern nonwovens should have a permanent hydrophilicity and be wetted several times with water or body fluids such as urine.
  • hydrophilic finishing compositions of fibers and nonwovens for sanitary applications have heretofore been marketed as either nearly anhydrous oils or as dilute aqueous dispersions.
  • the commercially available compositions are then diluted on site in fiber or nonwoven production with water, applied from aqueous dilution on the fibers or nonwovens and then dried.
  • no satisfactory permanent hydrophilic finish can be achieved.
  • the products thus treated often show insufficient results in the wash-off test and tend to wet migration.
  • the aqueous dispersions show better results with respect to the permanent hydrophilic finish of textile fibers and nonwovens.
  • the high water content of these dispersions can lead to bacterial attack or to the hydrolysis of the components used and thus to a limited storage stability.
  • Patent DE 196 45 380 B4 discloses a composition for the permanent hydrophilization of polyolefin fibers with cationically modified siloxanes, esterquats and nonionic surfactants.
  • the commercially available compositions all contain water and / or solvents and show only a limited storage stability.
  • anionic surfactants such as sulfosuccinates or liquid phosphoric acid esters are used to improve wetting.
  • these components reduce the surface tension of the compositions so much that, for example the urine in a wet diaper also wets the hydrophobic areas of the diaper and leaks out of the diaper.
  • the invention has for its object to provide a composition for permanent hydrophilic finish of textile fibers and fabrics such as nonwovens, which provides improved leakage protection and has improved storage stability.
  • composition according to the invention for the permanent hydrophilic finishing of textile fibers and textile products consists of:
  • composition (D) a hydrotrope dispersing aid in a proportion of 0-5 wt .-%, each based on the total weight of the composition; wherein the composition has a melting point of at least 45 ° C.
  • composition according to the invention may advantageously be dispersed in water as required by the customer and applied from aqueous dilution to the fibers or the fleece to be hydrophilically finished.
  • the provision as a composition with a melting point of at least 45 ° C ensures sufficient storage stability.
  • composition according to the invention exhibits a permanent-hydrophilic finishing of textile fibers and textile products comparable to the performance of spin finishes and finishing agents based on aqueous dispersions while retaining their respective performance properties.
  • the composition of the invention is present as granules. This allows a reduction in storage and transport costs and simplified handling at the customer. In addition, the granular composition is less sensitive to changing storage conditions.
  • composition according to the invention may also be provided as an aqueous dispersion having a solids content of at least 10% by weight, preferably at least 15% by weight. Also in this case, the storage stability compared to dilute aqueous dispersions is significantly improved.
  • the melting point of the composition is at least 55 ° C.
  • composition depends on the particular components used and the dispersibility and the desired performance characteristics of the composition. The inventors believe that compositions with a melting point above 120 ° C, preferably above 90 ° C, can no longer be meaningfully used as finishing agents for textile fibers and textile products.
  • For the preparation of the composition of the invention predominantly components of highly viscous or solid materials are used. Nevertheless, the application properties of the nonwovens vulcanized with the composition according to the invention, such as multiple strike-through, wet run, dry migration, wet migration and wash-off, are not adversely affected or even improved in comparison with the compositions used hitherto.
  • the fibers and nonwovens treated with the composition according to the invention show a good permanent hydrophilicity and a good absorption rate.
  • fibers also includes “filaments”, including single filaments and multi-filaments.
  • filaments including single filaments and multi-filaments.
  • fibers and filamentaments are therefore used synonymously.
  • Hydrophilic fibers, materials and surfaces are wettable spontaneously with water and aqueous liquids or show a contact angle of less than 90 ° ,
  • “permanently hydrophilic” means a textile product treated with a finishing agent (fiber or fabric) which has the "Multiple Strike Through” test according to WSP standard 70.7 (1 1) with penetration times of ⁇ 2I ⁇ 3 / ⁇ 5 / ⁇ 5 / ⁇ 5 seconds.
  • the storage stability of the dispersions known from the prior art is up to about 6 months.
  • the compositions of the present invention may be stored for at least 12 months at 22 ° C and 50% relative humidity without degradation of product properties as measured by the multiple strike-through test. Even in the form of highly concentrated dispersions having a solids content of at least 10%, preferably at least 15%, the compositions of the invention remain castable under these conditions.
  • the compositions preferably present as granules are considered to be storage-stable if the appearance of the granules does not change after storage at 50 ° C. for 3 days.
  • textile fibers in particular synthetic fibers or filaments of polyolefins such as polyethylene and polypropylene and polyesters such as polyethylene terephthalate (PET) and polylactides (PLA) or bicomponent fibers of polyolefins and polyesters are used.
  • the fabrics made from these fibers are preferably non-woven fabrics (nonwovens), especially nonwovens.
  • the acidic phosphoric acid ester is melted and neutralized with stirring. Thereafter, the remaining components of the composition are added and mixed together with stirring.
  • the water optionally present from the neutralization of the phosphoric acid ester is evaporated off until a residual water content of less than 5% by weight has been reached. Thereafter, granulation or scaling is carried out from the melt, whereby various granulation techniques or flaking methods known in the art may be used.
  • the phosphoric acid ester according to component (A) of the composition in its acidic form preferably corresponds to the following formula (I):
  • R 1 , R 2 and R 3 are independent of each other
  • an alkyl group or an alkenyl group having at least 12 C atoms which may each be branched or straight-chain, saturated or unsaturated, and / or
  • R 1 , R 2 and R 3 is not hydrogen.
  • any suitable bases such as LiOH, NaOH, KOH, NH 3 , amines and mono-, di- or tri-alkanolamines, in particular monodi- or triethanolamine, can be used.
  • At least one of R 1 , R 2 and R 3 in formula (I) is an alkyl group or an alkenyl group having 12 to 28 C atoms, more preferably having 12 to 24 C atoms.
  • At least one of R 1 , R 2 and R 3 in formula (I) of the phosphoric acid ester can be an alkoxylated alkyl or alkenyl group having 12 to 28 C atoms in the hydrocarbon chain and 1 to 6 alkoxy groups, preferably ethoxy groups , exhibit. Particular preference is given to alkoxylated alkyl or alkenyl groups having 12 to 24 C atoms in the hydrocarbon chain and 1 to 4 alkoxy groups, in particular ethoxy groups.
  • the chain length of the alkyl groups or alkenyl groups in the radicals R 1 , R 2 and R 3 of the phosphoric acid ester of the formula (I) preferably has on average 14 or more C atoms, preferably 16 or more C atoms and particularly preferably 14 to 18 C atoms.
  • the melting point of the neutralized phosphoric ester of component (A) is preferably at least 50 ° C.
  • the radicals R 1 , R 2 and R 3 may be the same or different. It is also possible to use mixtures of different phosphoric acid esters.
  • the proportion of component (A) in the composition of the invention is in the range of 25 to 85 wt .-%, preferably in the range of 40 to 70 wt .-%, particularly preferably in the range of 60 to 70 wt .-%, based on the total weight of the composition. A higher proportion of component (A) may result in increased wet migration and deterioration of the run-off behavior of a composition-finished product.
  • the consistency regulator according to component (B) of the composition according to the invention is selected from the following group of compounds: a) optionally alkoxylated C 12 -C 28 -fatty acid esters and alkoxylates of polyfunctional alcohols, b) C 12 -C 22 -alkyl polyglycosides; c) C16-C28 fatty alcohols and alkoxylated C12-C28 fatty alcohols; d) optionally alkoxylated C12-C28 fatty acid amides, and e) alkoxylated C12-C28 fatty acids and fatty acid esters f) synthetic waxes such as polyalkylene waxes and ester waxes and natural waxes, in particular vegetable waxes such as fruit and cereal waxes.
  • synthetic waxes such as polyalkylene waxes and ester waxes and natural waxes, in particular vegetable waxes such as fruit and cereal waxes.
  • the hydrocarbon chains of these compounds can each be branched or straight-chain, saturated or unsaturated.
  • the compounds used as consistency factors in the compositions according to the invention preferably have at least 16 C atoms in the hydrocarbon chain.
  • the alkoxy groups of the abovementioned compounds are preferably ethoxy groups (EO) and / or propoxy groups (PO).
  • the compounds preferably contain up to 15 alkoxy groups, in particular EO and / or PO groups.
  • the number of alkoxy groups is preferably from 1 to 15, preferably from 2 to 10, and more preferably from 2 to 8.
  • the nonionic consistency regulator according to component (B) of the composition according to the invention preferably has a melting point of at least 55 ° C.
  • the bodying agent is an ester of C12-C28 fatty acids with polyfunctional alcohols selected from the group consisting of sorbitol, neopentyl glycol, glycerol, trimethylolpropane, pentaerythritol and polyglycerol, glucose and polyglycosides, and mixtures thereof.
  • polyfunctional alcohols selected from the group consisting of sorbitol, neopentyl glycol, glycerol, trimethylolpropane, pentaerythritol and polyglycerol, glucose and polyglycosides, and mixtures thereof.
  • the esters may be alkoxylated or non-alkoxylated. Preference is given to non-alkoxylated fatty acid esters of polyfunctional alcohols.
  • Alkoxylates of polyfunctional alcohols are preferably alkoxylates of sorbitol, neopentyl glycol, glycerol, trimethylolpropane, pentaerythritol and polyglycerol, glucose and polyglycosides and mixtures thereof with 1 to 15 alkoxy groups, preferably ethoxy groups and / or propoxy groups.
  • C 12-22 alkyl polyglycosides in particular C 12-22 alkyl polyglucosides, and also C 16-28 fatty alcohols and fatty alcohol alkoxylates or alkoxylates of functionalized fatty alcohols having 12 to 28 C atoms in the carbon hydrogen chain and 1 to 15 alkoxy groups, in particular ethoxy and / or propoxy groups.
  • An example of a functionalized fatty alcohol is hydroxystearyl alcohol.
  • a solid fatty acid amide having 12 to 28 carbon atoms in the carbon chain can furthermore be used in the composition according to the invention.
  • the fatty acid amide is especially free of nitrosamines.
  • An example of a suitable fatty acid amide is stearic acid monoethanolamide.
  • the alkoxylated C 12 -C 28 fatty acids and fatty acid esters preferably have up to 15 alkoxy groups, preferably 1 to 10 alkoxy groups.
  • the fatty alcohol alkoxylates and fatty acid alkoxylates may terminally have a hydroxyl or an alkyl or alkenyl ether group. Particularly preferred are hydroxy-terminated fatty alcohol and fatty acid alkoxylates.
  • the nonionic bodying agent can be used as a single compound or as a mixture of different compounds.
  • a proportion of the bodying agent of 50% by weight of the total composition should not be exceeded, since too high a content of the bodying agent can lead to poor wetback, a low absorption rate and insufficient permanent hydrophilization.
  • the proportion of the bodying agent in the range of 10 to 40 wt .-%, particularly preferably in the range of 15 to 30 wt .-%, based on the total weight of the composition.
  • the hydrophilically modified polyalkylsiloxane of component (C) may be cationically or anionically modified, or may carry a non-ionic pendant hydrophilic group.
  • component (C) preferably comprises a cationically modified polyalkylsiloxane having at least one quaternary ammonium group.
  • the cationically modified polyalkylsiloxane particularly preferably corresponds to one of the following formulas IIa or IIb:
  • R 5 is independently of one another -CH 3 or -C 2 H 4 OH, preferably -CH 3 ,
  • R 6 is - (CH 2 ) x -X-CO-R 7 ,
  • R 7 denotes a linear or branched, saturated or unsaturated hydrocarbon chain having 9 to 23 C atoms, preferably C 9 -C 15 -alkyl,
  • X is an oxygen atom or NH, preferably NH,
  • Y is " one of the anions CH 3 OSO 3 " , C 2 H 5 OSO 3 " , CH 3 COO “ , CI “ , phosphate or lactate, preferably CH 3 COO " , q is an integer from 3 to 18, preferably 3 to 6, r and s are independently an integer from 1 to 50; x is an integer from 2 to 10, preferably 2 to 4, y is an integer from 8 to 22, preferably 8 to 16 and particularly preferably 8 to 12, and z is an integer from 0 to 10. Preference is given to those cationically modified polyalkylsiloxanes in which the radical R 4 carries a free cation.
  • the hydrophilically modified polyalkylsiloxane of component (C) comprises a nonionic alkoxylated polyalkylsiloxane having an ⁇ , ⁇ structure or comb structure, optionally end-capped with alkyl groups, acyl groups or phosphate groups.
  • the hydrophilically modified polyalkylsiloxane preferably has a viscosity at 25 ° C. of at least 3500 mPas. Particularly preferably, the viscosity of the polyalkylsiloxane at 22 ° C at least 5 Pa s and is preferably in the range of 5 to 100 Pa s, in particular between 50 and 80 Pa s. The viscosity is measured according to DIN ISO 2555.
  • Suitable highly viscous, hydrophilically modified polyalkylsiloxanes are commercially available, for example, under the name TEGOPREN TM from Evonik Industries or as L-series silicone oils from Wacker AG.
  • the hydrophilically modified polyalkylsiloxane of component (C) improves the absorbency of the products treated with the composition according to the invention.
  • Composition is in the range of 3 to 35 wt .-%, preferably in the range of 5 to 25 wt .-%, and particularly preferably from 10 to 15 wt .-%, based on the total weight of the composition.
  • a higher proportion of the component (A) deteriorates the granulation ability of the composition and increases the price.
  • the composition as component (D) may comprise a dispersing aid for stabilizing the granules and improving the dispersibility in water.
  • a dispersing aid for stabilizing the granules and improving the dispersibility in water.
  • Preferred dispersants are hydrotropic compounds, and in particular substances from the group of liquid at room temperature C6-C18 alkyl alkoxylates, which may be branched, straight-chain, saturated or unsaturated and having up to 6 ethoxy and / or propoxy groups, and amphoteric Surfactants, in particular betaines, (poly) phosphates, in particular polyphosphate alkali metal salts, and / or sulfonates such as alkyl sulfonates and cumene sulfonate.
  • Further suitable dispersing aids are polyvinyl alcohols and polyacrylates. The addition of hydrotrope substances can also reduce the viscosity of the composition in aqueous dispersion.
  • sodium polyphosphate is used as dispersing assistant.
  • the composition is preferably in the form of granules.
  • the granules are preferably free-flowing.
  • the mean grain size of the granules is preferably in the range of 4 to 10 mm.
  • composition according to the invention is preferably used as a spin finish for the permanent-hydrophilic finish of polyolefin fibers or polyolefin filaments or as a permanent hydrophilic finish for nonwoven fabrics made of polyolefin fibers or polyolefin filaments, in particular spunbonded nonwovens.
  • polystyrene resin As the polyolefin, it is possible to preferably use homo- or copolymers based on ethylene or propylene.
  • polystyrene resins examples include polyethylenes such as high density polyethylene (HDPE), low density polyethylene (LDPE), very low density polyethylene (VLDPE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), ultra high molecular weight polyethylene (UHMPE) ), VPE (cross-linked polyethylene), HPPE (high pressure polyethylene); Polypropylenes such as isotactic polypropylene; syndiotactic polypropylene, metallocene catalyzed polypropylene, impact modified polypropylene; Random copolymers based on ethylene and propylene, block copolymers based on ethylene and propylene; EPM (poly [ethylene-co-propylene]); EPDM (poly [ethylene-co-propylene-co-conjugated diene]).
  • HDPE high density polyethylene
  • LDPE low density polyethylene
  • VLDPE very low density polyethylene
  • LLDPE linear low density polyethylene
  • MDPE medium density
  • polystyrene polystyrene
  • Poly (methylstyrene) Poly (oxymethylene); Metallocene catalyzed alpha-olefin or cycloolefin copolymers such as norbornene-ethylene copolymers; Copolymers containing at least 60% ethylene and / or styrene and less than 40% Monomers such as vinyl acetate, acrylic acid esters, methacrylic acid esters, acrylic acid, acrylonitrile or vinyl chloride.
  • polymers examples include poly (ethylene-co-ethyl acrylate), poly (ethylene-co-vinyl acetate), poly (ethylene-co-vinyl chloride) and poly (styrene-co-acrylonitrile).
  • graft copolymers and polymer blends that is to say mixtures of polymers in which, inter alia, the abovementioned polymers are present, for example polymer blends based on polyethylene and polypropylene.
  • composition used according to the invention is suitable for the permanent hydrophilic finish of polyester fibers, in particular fibers of polyethylene terephthalate and polylactides, and of nonwovens made therefrom. Also suitable are bicomponent fibers of polyolefins and polyesters.
  • the preferably granular composition is preferably dispersed in water or another suitable solvent and applied in the form of a dilute aqueous dispersion in a proportion of 1 to 5 wt .-% of active components on the fiber or nonwoven.
  • the dispersion can be applied to a nonwoven in a known manner by means of dosing pens, kiss rollers, dipping baths or by spraying.
  • the order weight (OPU) of the composition is preferably in the range of 0.1 to 5%, based on the dry weight of the respective product (fiber, filament, nonwoven).
  • the invention furthermore also relates to textile fibers and filaments and textile products produced therefrom, in particular nonwovens, which are obtainable by the abovementioned process and are permanently hydrophilic-finished or treated with the composition according to the invention.
  • the nonwoven fabric equipped with the composition according to the invention forms part of an absorbent article.
  • Absorbent article refers to a device that is intended to be positioned against the skin of a wearer to absorb and retain the various exudates discharged by the body. Examples of absorbent articles are incontinence articles such as diapers, pant-like diapers, training pants, diaper holders and incontinence briefs, as well as feminine hygiene articles such as tampons, sanitary napkins and panty liners.
  • the absorbent article usually comprises a base unit having a liquid pervious topsheet and a backsheet and an absorbent core located between the topsheet and the backsheet for receiving body fluids.
  • the liquid pervious topsheet is aligned with a wearer when the article is worn.
  • the opposite lower layer is arranged on the side facing the clothing of the wearer.
  • At least the upper layer is formed from a non-woven fabric equipped with the composition according to the invention.
  • the acidic phosphoric acid ester was melted and neutralized with KOH with stirring. Thereafter, the remaining components were added and mixed with stirring. The water present from the neutralization of the phosphoric ester was evaporated until the melt reached a residual water content of less than 5% by weight. From the melt, a granulate having a mean particle size of about 5 mm was produced. From the granules thus obtained, a 5% aqueous dispersion was prepared. This dispersion was applied to a SSS spunbond nonwoven fabric of polypropylene fibers having a basis weight of 15 g / m 2 . The application weight (OPU) in Examples 1 and 2 was adjusted to 0.5%, based on the dry weight of the nonwoven. Table 1
  • a finishing agent commercially available as an aqueous dispersion was adjusted to an active component content of 5% and an order weight (OPU) of 0.5% on a SSS spunbond nonwoven fabric of polypropylene fibers having a basis weight of 15 g / m 2 applied.
  • the PP spunbond nonwoven is placed at a 25 ° angle onto a filter paper serving as the absorption layer.
  • a defined amount of a synthetic urine solution is applied. Unabsorbed test fluid is collected in a drip tray and the amount determined by weighing. The test is repeated twice on the same fleece. The amount of unabsorbed artificial urine solution should be 0% at the first run off.
  • a 10-well metal stencil is placed on a nonwoven piece as an absorbent layer.
  • a synthetic urine solution (0.9% NaCl) is pipetted successively.
  • a test field counts if the amount of fluid has been absorbed within 2 seconds by the underlying absorption layer.
  • the test is repeated after a waiting time of 3 minutes without replacing the absorption layer. The test result indicates the number of passed test fields.
  • the surface tension of a washing solution is measured, which results from washing out a 6x6 cm nonwoven piece with 40 ml demineralized water.
  • the nonwoven is stirred in water for 10 sec at room temperature (25 ° C).
  • the fleece is removed with tweezers and the surface tension of the Washing water at 25 ° C with a platinum ring measured.
  • the washing solution should have a surface tension of at least 60mN / m.
  • Dry Migration In dry migration according to an in-house test method, migration of the hydrophilic fiber preparation components to surrounding hydrophobic nonwoven material is replicated. For this purpose, alternating hydrophilic and hydrophobic layers are layered and stored under pressure (bearing load 10 kg) at elevated temperature of 60 ° C for 48 h. The hydrophobic nonwoven layers are placed in a solution of synthetic urine and the wetting of the nonwoven layers is assessed. Ideally, no wetting of the hydrophobic nonwoven takes place. The evaluation is based on the following criteria:
  • Grade 2 maximum 5 wetting points ⁇ 2 mm diameter visible
  • Grade 3 5 to 15 wetting sites with ⁇ 2 mm diameter visible
  • Grade 4 more than 15 wetting points ⁇ 2 mm diameter visible, or wetting points> 2 mm diameter visible.
  • Examples 1 and 2 of the invention meet the requirements for rapid and permanent hydrophilization of the polyolefin nonwoven.
  • the compositions of the invention are also stable in storage at room temperature for at least 12 months and show no visible changes as granules in the hot storage test at 50 ° C for 3 days.

Abstract

L'invention concerne une composition d'apprêt destinée à être utilisée pour conférer des propriétés hydrophiles permanentes à des fibres textiles et des produits textiles fabriqués à partir de celles-ci, ladite composition comprenant au moins un tensioactif anionique à base d'un ester phosphorique neutralisé d'un alcool gras comportant au moins 12 atomes de carbone dans une proportion de 25 à 80 % en poids, un agent de consistance non ionique dans une proportion de 10 à 50 % en poids, un polyalkylsiloxane modifié en termes d'hydrophilie dans une proportion de 3 à 35 % en poids, et un agent dispersant hydrotrope dans une proportion de 0 à 5 % en poids, les proportions indiquées étant rapportées au poids total de la composition. Ladite composition se présente de préférence sous forme de granulat et présente un point de fusion d'au moins 45 °C.
PCT/EP2015/080796 2014-12-22 2015-12-21 Composition d'apprêt destinée à conférer des propriétés hydrophiles permanentes à des fibres textiles et des produits textiles WO2016102469A1 (fr)

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US15/527,445 US20170362770A1 (en) 2014-12-22 2015-12-21 Composition for the permanent hydrophilic finishing of textile fibers and textile products
CN201580070364.XA CN107109776A (zh) 2014-12-22 2015-12-21 用于永久亲水性整理纺织纤维和纺织制品的组合物

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DE102014119334.2A DE102014119334A1 (de) 2014-12-22 2014-12-22 Zusammensetzung zur permanent-hydrophilen Ausrüstung von Textilfasern und Textilerzeugnissen
DE102014119334.2 2014-12-22

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CN111771021A (zh) * 2018-02-28 2020-10-13 东丽株式会社 层叠无纺布
CN111771020A (zh) * 2018-02-28 2020-10-13 东丽株式会社 层叠无纺布

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EP3638841B1 (fr) * 2017-06-14 2024-05-01 Rudolf GmbH Composition et son utilisation destinée à apprêter des fibres et textiles
EP3415685A1 (fr) * 2017-06-14 2018-12-19 Rudolf GmbH Composition et son utilisation destinée à apprêter des fibres et textiles
KR102294965B1 (ko) * 2019-10-14 2021-08-26 도레이첨단소재 주식회사 부직포용 세포무독성 친수성 개질 코팅제, 이를 포함하는 세포무독성 부직포 및 이의 제조방법

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EP0839947A2 (fr) * 1996-11-04 1998-05-06 Schill & Seilacher GmbH & Co. Composition pour rendre hydrophiles de façon permanente des polyoléfines, utilisation de la composition et les fibres ainsi traitées
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KR20200016865A (ko) * 2017-06-14 2020-02-17 루돌프 게엠베하 섬유 및 텍스타일을 마무리하기 위한 조성물 및 그의 용도
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CN111771021A (zh) * 2018-02-28 2020-10-13 东丽株式会社 层叠无纺布
CN111771020A (zh) * 2018-02-28 2020-10-13 东丽株式会社 层叠无纺布
CN111771021B (zh) * 2018-02-28 2022-11-22 东丽株式会社 层叠无纺布

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