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
  • 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
  • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
• • 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
• • 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
  • D06M13/10—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
• • 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
  • 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
  • D06M13/372—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 containing etherified or esterified hydroxy groups ; Polyethers of low molecular weight
• • 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
  • D06M13/402—Amides imides, sulfamic acids
  • D06M13/419—Amides having nitrogen atoms of amide groups substituted by hydroxyalkyl or by etherified or esterified hydroxyalkyl 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
  • 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
  • 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
  • D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
  • D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
• • 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
  • D06M15/53—Polyethers
• • 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
  • 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
  • D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
• • 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
  • D06M2200/10—Repellency against liquids
  • D06M2200/11—Oleophobic properties

Definitions

• the present invention comprises means for hydrophilic coating of sheets of hydrophobic thermoplastic materials and the use of the composition.
• the means for hydrophilic coating of sheets of initially hydrophobic thermoplastic materials imparts hydrophilic properties to the products made of the fabrics, such as nonwovens, films, foams which are basically hydrophobic substrates, in order to achieve repeated wettability with aqueous media.
• the invention relates to the thermoplastic materials coated with the compositions according to the invention and products produced therefrom.
• Hydrophilized fabrics, perforated films and foams are used in particular as cover layers or as liners in multi-layer constructions for sanitary articles and medical articles such as surgical table underlays, wound dressings, incontinence products and similar products.
• cover layers serve to forward body fluids such as blood or urine as quickly as possible to an underlying absorption layer (cover layer) or to distribute and forward (intermediate layer).
• Nonwoven or perforated film is usually used for these cover or intermediate layers made of polyester or polyolefin, for foams also polyurethane.
• hydrophobic substrates are used, since they largely pass the aqueous body fluids to the absorber layer underneath and absorb them only to a lesser extent, so that this upper layer remains dry.
• a preferably dry cover layer is useful to avoid skin irritation.
• these originally hydrophobic substrates In order for these originally hydrophobic substrates to be wetted by aqueous liquids, they must be coated hydrophilic.
• thermoplastic materials that allow low material and production costs.
• hydrophilic coating should give the most permanent possible hydrophilization that does not pass through mechanical friction is removed or leached out by liquids and provides the coated material with as constant a hydrophilicity as possible over a sufficiently long period of its useful life to allow repeated wetting with aqueous media.
• water-resistant or permanently hydrophilic properties The term “waterproof” or “permanent” is not synonymous with the concept of wash fastness. A proper coating would only be achieved by chemical linkage to the substrate or within the hydrophilic layer.
• the hydrophilization takes place by coating the surface of suitable substrates with surface-active substances or by adding hydrophilic additives into the melt before or during the extrusion process.
• Hydrophilizing melt additives are surface-active substances such as those described in US Pat US 2008/064281 A1 and WO 2005/111299 A1 to be discribed. These melt additives are economically and technically disadvantageous compared to surface coatings.
• the melt additives are distributed in the cross section of the entire matrix. As a rule, they migrate to the surface only very slowly, but only there can they produce the hydrophilizing effect. Thus, when added to the melt, it requires much more amount of hydrophilizing agent to achieve the same effect as in the superficial coating. Although this disadvantage can be reduced by a bicomponent spinning process in which the additive is added only to the outer layer, the process is more complex and expensive here. Repeated wettability is achieved by allowing hydrophilizing agent that has been removed at the surface to migrate out of the matrix. Thus, a permanence against aqueous media and mechanical friction can be achieved.
• Hydrophilic coatings which allow repeated wettability are also known from the literature.
• the EP 1 600 532 B1 describes the use of a fatty acid esterified glycerol alkoxylate to hydrophilize polyolefin and / or polyester material.
• the US 4,988,449 A describes hydrophilizing compositions containing diethanolamides as well as nonionic surfactants, alkyl phosphates, quaternary ammonium salts and / or alkylimidazolium salts. They are used as wetting agents for polyolefin nonwovens to allow the penetration of liquids.
• hydrophilicizing compositions which contain polyoxyalkylene-modified polydimethylsiloxanes, alone or in combination with nonionic surfactants, alkyl phosphates, quaternary ammonium salts and / or alkylimidazolium salts.
• the EP 410 485 B1 describes a process for hydrophilizing polyolefin fibers and nonwovens made therefrom by applying to the surface of the fibers an aqueous surfactant mixture in which the composition consists of alkoxylated triglycerides of C18 fatty acids and polyoxyalkylene modified polydimethylsiloxane.
• the EP 0 839 947 A2 describes hydrophilizing compositions consisting of nonionic surfactants in combination with a quaternary ammonium compound and / or a cationically modified polydimethylsiloxane.
• the DE 37 32 378 A1 relates to spin finish mixtures which contain fatty acid alkanolamides with softening points> 70 ° C. as bonding stop components, for synthetic fibers, especially for fibers made of polyacrylonitrile, which are used as cut fibers and the use of these spin finish mixtures for the preparation of staple fibers, especially based on polyacrylonitrile.
• the JP 002002020971 A describes an oily substance for high speed spinning of synthetic fibers.
• All these coating agents have in common that they are in the form of aqueous dilutable oils, pastes or aqueous prediluted emulsions or dispersions.
• aqueous dilute liquor aqueous dilute liquor
• the water is removed by a drying process.
• the coating is then in the form of a liquid film to a spreadable paste.
• the coatings which are state of the art today, can be removed again because of their at least partial water solubility, emulsifiability or dispersibility by aqueous liquids. Due to their mostly oily to waxy consistency as a coating they can be rubbed off mechanically.
• the permanently hydrophilic properties are generally achieved by the surfactant films undergo a rapid increase in viscosity by contact with aqueous media and thereby pass into a little water-soluble gel phase, but which can be redissolved by further addition of aqueous media.
• the present invention is based on considerations to achieve a particularly waterproof and rubbed hydrophilic coating by the water-insoluble portion of the coating is increased and the brittleness of the coating is increased. Furthermore, hydrophobic skin-care substances should be applied to the hydrophilic coating in a one-step process, without the wettability deteriorating significantly.
• hydrophobic skin care agents such as ester oils / waxes, silicone-based oils or waxes, and / or native or paraffinic oils or waxes.
• Water-resistant sunscreen formulations comprising emulsifiers based on organic phosphoric esters, often potassium monocetylphosphate formulated with long-chain alcohols such as cetylsteary alcohols and / or partial glycerides, eg described in US Pat US 2013/0177510 A1 , of the DE 10 2012 214 716 A1 , of the EP 2 545 896 A1 and the EP 2 545 901 A1 ,
• rinses or conditioners which are applied from aqueous emulsions / dispersions and their lubricants and care substances after washing partially remain in the hair, so are waterproof.
• Main components of these hair care formulations are mostly cationic surfactants which can be used as monomers or polymers in combination with longer-chain fatty alcohols and / or siloxanes and water. Often hydrophobic lubricants such as native, paraffinic or semi-synthetic oils or waxes are used.
• Such formulations are described for example in US Pat EP 1 413 285 A1 , of the WO 2010/136285 A1 , of the WO 2014/069388 A1 , of the DE 197 05 822 A1 and the DE10 2008 030 136 A1 ,
• fabric softeners based on cationic surfactants which remain at least partially on the laundry after the rinsing process, that is to say are water-resistant to a certain extent, inter alia described in US Pat DE 44 03 686 A1 . EP 0 387 064 A1 . GB 1 104 441 A1 ,
• the US 4,126,562 A proposes polymeric cationic salts in combination with nonionic glycerol monostearate or sorbitan stearate as a laundry softening formulation.
• the most commonly used cationic surfactants in hair and laundry conditioners are quaternary trialkylammonium salts and esterquats.
• the emulsifier potassium cetyl phosphate used in formulations for waterproof sunscreen products is ultimately too water-soluble; the nonionic emulsifiers cetylstearyl alcohol and the vegetable partial glycerides are not sufficiently wetting active with respect to aqueous media.
• the hair and fabric softener formulations may be formulated to meet the requirements of a hydrophilic coating for hydrophobic sheets of thermoplastic materials in terms of wetting speed, they are not sufficiently abrasion resistant and permanent.
• Skin-care substances may be found on the hydrophilic layers of absorbent articles.
• the hydrophilic cover fleeces which come into contact with the skin, to equip with hydrophobic care lotions when assembling the individual layers in the series production of the absorbent article.
• the hydrophilizing coating is applied to the flat substrate, which is further processed in the joining machine of series production and in a second process step, the care lotion.
• the lotion is applied in the form of a pattern of several stripes on the bodyside surface of the cover fleece, so that the liquid-permeable property of the cover fleece is given.
• the procedure according to WO 2012/047986 A2 proposes a lotion for application to the cover fleece of a hygiene article, in addition to 0.1-90 wt .-% of the hydrophobic care component (paraffin wax, petrolatum) or 0.1 to 25 wt .-% of an ethoxylated Monolaurinklareesters and 0.1 to 50 Wt .-% of an ethoxylated Monostearinklareesters and a carrier material.
• the composition is described as hydrophilic, but applied to an already liquid-permeable and thus hydrophilic or hydrophilized cover layer.
• hydrophilic coatings are usually used which have a liquid to pasty, at best roomy, lumpy consistency at room temperature and can therefore be easily rubbed off the surface.
• This low rubbing fastness leads to problems in further processing by sticky deposits, which force frequent shutdown and cleaning of the machines.
• mechanical abrasion of the coating results in degraded hydrophilic properties of the substrate.
• the coatings consist mostly of readily emulsifiable surfactants, which can be removed to some extent by aqueous media. This can reduce permanence / repeated wettability.
• a surface coating can be applied undiluted, diluted from solvent or diluted from aqueous emulsion / dispersion directly onto the fabric (film, foam, textile) or in a precursor to the filaments or fibers which are subsequently processed into fabric.
• care oils or waxes are applied to the previously hydrophilized substrate.
• the object of the invention is to provide a means for hydrophilic coating of hydrophobic surfaces of substrates for medical and hygiene articles with faster repeating Wettability, low tendency to detach against aqueous media and mechanical friction.
• it is intended to be able to add hydrophobic, skin-care substances to the hydrophilizing agent without the rapid repeated wettability being significantly worsened.
• the functionalization of the surface with hydrophilizing and care substances can be achieved in an economically advantageous, single-stage process.
• the present invention achieves this object by a means for hydrophilic coating of sheets of hydrophobic thermoplastic materials having the features of claim 1.
• the components of the composition were selected so that optimized wettability is achieved by controlling the HLB (hydrophilic-lipophilic balance), very good permanence is achieved by using as few water-soluble components as possible, and consistency of the overall formulation is achieved by the consistency of the individual components which allows good mechanical resistance.
• Mechanically less durable coatings which are typically liquid at room temperature, exhibit lower abrasion resistance, as well as a tendency to flow, such that the coating is spread over adjacent layers, e.g. the packaging material can pass.
• the dependent claims 2 to 12 describe particularly advantageous embodiments of the agent, the dependent claims 13 to 18 describe uses of the agent.
• composition of the invention is in a solid state at room temperature.
• the preferred dosage form are pourable flakes, flakes, granules, powders, etc. Due to the solid consistency, the rub fastness is significantly improved compared to liquid or pasty coatings. It has good permanent hydrophilicity properties and imparts to the substrates so equipped a rapid repeated wettability and good flowability of aqueous liquids.
• the proportion of components which are present in the liquid state at room temperature is not higher than that the composition still has a sufficiently solid consistency at room temperature in order to be able to be processed into a pourable dosage form without the particles adhering to one another.
• the composition of the invention has a consistency that makes it non-spreadable at room temperature using moderate pressures.
• the agent according to the invention should preferably be undiluted by a melt application to the substrate be applied. It must therefore be present in the melt as a homogeneous oil in suitable viscosity. Due to the desired low water solubility of the composition according to the invention, an application from aqueous liquor can be diluted only to a high degree, applied at elevated temperature and / or using a solubilizer (eg isopropanol).
• a solubilizer eg isopropanol
• composition of the invention is suitable for use as a hydrophilic coating for sheets of hydrophobic thermoplastic materials, preferably textiles, films and foams, particularly preferably nonwovens.
• the composition according to the invention can be applied to the fabric or, in a preliminary stage, to fibers or filaments which are further processed to form a textile fabric.
• Thermoplastic materials are plastics which are deformable in a certain temperature range. They can be processed, for example, by injection molding, extrusion, film blowing, etc.
• the thermoplastics include, for example: acrylonitrile-butadiene-styrene (ABS), polyamides (PA), polyacetate (PLA), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), Polyethylene (PE), Polypropylene (PP), Polystyrene (PS), Polyetheretherketone (PEEK), Polyvinylchloride (PVC) and Thermoplastic Polyurethane (TPU).
• ABS acrylonitrile-butadiene-styrene
• PA polyamides
• PLA polyacetate
• PMMA polymethyl methacrylate
• PC polycarbonate
• PET polyethylene terephthalate
• a hydrophilic material is wettable by aqueous liquids, i. the contact angle between the material or its surface and the liquid is less than 90 ° or the liquid spreads spontaneously.
• a material or its surface is called hydrophobic if the contact angle is greater than 90 ° and the aqueous liquid does not spontaneously spread.
• the components a), b) and c) are mixed in a molten state, then only the Neutralizing agent added *.
• the components b) and c) act as solvents for the alkylphosphoric acid ester.
• the alkyl phosphoric acid ester can not be neutralized undiluted because a non-fusible salt is formed.
• R 1, R 2 and R 3 independently of one another are (i) an alkyl group having 12 to 22 C atoms in the hydrocarbon chain or an alkenyl group having 12 to 22 C atoms in the hydrocarbon chain, and wherein the alkyl groups or alkenyl groups are each branched or straight-chain, saturated, may be unsaturated or polyunsatur
• At least one of R1, R2 and R3 in formula (I) is an alkyl group or an alkenyl group having 10 to 22 C atoms, more preferably having 12 to 18 C atoms, most preferably C12-C18 mono / dialkyl.
• any suitable bases such as alkali hydroxides, ammonia and alkanolamines or combinations thereof may be used, preferably non-volatile bases such as NaOH or KOH. It is particularly preferred that concentrated aqueous potassium or caustic soda be used to minimize water input. A portion of the water evaporates during the neutralization process, so that overall the consistency of the agent according to the invention obtains the desired solid state at room temperature.
• the functional solvents b) and c) allow the neutralization of the Alkylphosphorklareesters in the melt and have hydrophilizing / nourishing properties as components of the coating. Fats, waxes, tri- and partial glycerides, fatty alcohols, ester oils and combinations thereof can be used as the hydrophobic solvent / care substance.
• the hydrophobic solvent / care substance used is preferably care substances having a melting point> 30 ° C.
• the hydrophobic care agent is preferably selected from the group of native triglycerides, the medicinal white oils, vaseline, ester oils, ester waxes and / or paraffinic oils and waxes and the fatty alcohols and combinations thereof.
• Thistle oil, grapeseed oil, argan oil, wheat germ oil, pumpkin seed oil, canola oil, hydrogenated or unhydrogenated are particularly preferred fats and waxes with a melting point> 30 ° C.
• waxes are in particular saturated hydrocarbons, microcrystalline waxes, petrolatum and paraffins, preferably having a melting range> 30 ° C.
• Alcohols with C chains of C16-C22 are particularly suitable as native fatty alcohols.
• cetylstearyl alcohol Particularly preferred are cetylstearyl alcohol, shea butter and / or Vaseline.
• Nonionic emulsifiers which can be used are fatty alcohol alkoxylates, fatty acid alkoxylates, alkylglucosides, alkylpolyglucosides, fatty acid alkanolamides, alkoxylated fatty acid alkanolamides, alkylamine alkoxylates, partial glycerides and combinations thereof.
• fatty alcohol ethoxylates having a melting range> 30 ° C.
• hydrophilic polymers can be used polyalkylene glycols, polyvinyl alcohols, modified polyvinyl alcohols, modified polydimethylsiloxanes, modified polyvinylpyrrolidones and combinations thereof.
• modified polydimethylsiloxanes are particularly preferred.
• hydrophilic plasticizers include: modified polydimethylsiloxanes, organic cationic surfactants such as mono-, di- or trialkylammonium compounds, amidoamines (amidoamine quats), quaternized fatty acid trialkanolamine ester salts (esterquats) or polymeric cationic surfactants and combinations thereof.
• organic cationic surfactants such as mono-, di- or trialkylammonium compounds, amidoamines (amidoamine quats), quaternized fatty acid trialkanolamine ester salts (esterquats) or polymeric cationic surfactants and combinations thereof.
• wetting agents and further hydrophilizing agents may optionally be added to the composition according to the invention: sulfosuccinic acid esters, carboxylates, betaines, fatty alcohol alkoxylates, siloxanes, modified polydimethylsiloxanes, sulfosuccinic acid esters, alkylglucosides, alkylpolyglucosides, other sugar surfactants (sorbitan esters, sucrose esters, etc.), alkyl sulfates, alkyl ether sulfates, alkyl phosphates and alkyl ether phosphates, Polyvinyl alcohols, polyvinyl pyrrolidones and combinations thereof.
• composition according to the invention may optionally contain further technical additives from the group of cohesive agents, lubricants, complexing agents, corrosion inhibitors.
• additives may also be ionic surfactants, nonionic emulsifiers / bodying agents in the sense of the invention. These additives are known in the art and are commercially available.
• additives from the field of plant extracts and agents, vitamins, provitamins and the antimicrobial agents may be added to the agent.
• composition according to the invention may additionally contain care additives such as plant-based components, e.g. from chamomile, calendula, aloe vera and vitamins or provitamins like vitamin E or panthenol.
• care additives such as plant-based components, e.g. from chamomile, calendula, aloe vera and vitamins or provitamins like vitamin E or panthenol.
• the proportion of care additives in the composition according to the invention is preferably 0.5% by weight to 5% by weight, more preferably up to 2% by weight, and most preferably up to 1% by weight.
• composition of the invention is used as a permanent hydrophilizing coating, preferably for fiber-forming thermoplastic polymers, more preferably for polyethylene terephthalate (PET) and polyolefins and thermoplastic polyurethane, most preferably for polypropylene and polyethylene.
• thermoplastic polymers more preferably for polyethylene terephthalate (PET) and polyolefins and thermoplastic polyurethane, most preferably for polypropylene and polyethylene.
• composition of the invention is suitable for the hydrophilic coating of bicomponent systems (e.g., polyethylene / polyester core sheath fibers).
• bicomponent systems e.g., polyethylene / polyester core sheath fibers
• the composition of the invention is suitable for the hydrophilic coating of bicomponent systems.
• composition according to the invention can be applied to the substrate either undiluted in a molten state or diluted by suitable solvents or from aqueous dispersion or emulsion.
• suitable solvents or from aqueous dispersion or emulsion.
• the solvent and / or water is removed in a subsequent process step.
• the aqueous emulsion or dispersion is prepared with hot water (about 80 ° C.).
• the agent according to the invention can be dissolved in polar organic solvents, such as short-chain alcohols, or in mixtures of polar organic solvent and water.
• compositions of the invention in an amount of 0.1 to 5 wt .-% based on the dry weight of the respective product (fiber, filament, nonwoven, film, foam), more preferably in an amount of 0.2-3 wt. -%.
• a process for the production of permanently hydrophilized films, foams or textile products, in particular nonwovens comprises the application of the agent according to the invention to the substrate of polyolefin, polyester, polyamide or polyurethane as known to the person skilled in the art, via dosing pencils, rollers, dipping baths or by foam application.
• the agent according to the invention to the substrate of polyolefin, polyester, polyamide or polyurethane as known to the person skilled in the art, via dosing pencils, rollers, dipping baths or by foam application.
• solvent and / or water By diluting the composition with solvent and / or water, a particularly uniform distribution can take place with a small layer thickness.
• the solvent / water is removed after the application, whereby the coating is in a solid state of aggregation on the substrate at room temperature.
• the spun or staple fiber webs equipped according to the invention are particularly preferably physically strengthened nonwovens, more preferably by thermobonding, water needling or hot air.
• the hydrophilic coating can also be applied to filaments or fibers and additionally assume the function of a lubricating and processing aid.
• the fibers coated in this way are further processed into textile fabrics, which can optionally additionally be coated with the agent according to the invention.
• a process for the production of permanently hydrophilically coated films can be carried out so that the film is first coated with the agent according to the invention and then perforated in order to achieve the necessary porosity. Conversely, the film can also be perforated first and then coated.
• the agent according to the invention can be melted and applied directly from the melt to the substrate.
• a drying step is omitted in this method.
• the melt application can take place on the fabric, which is further processed in the next step as a functionalized layer (cover or intermediate layer) to a hygiene or medical article.
• the melt application may also be on the untreated substrate in further processing, e.g. on a hitherto hydrophobic cover fleece in the joining machine.
• Suitable coating devices for the melt application are already commercially available for the application of hot melt adhesives or lotions.
• An absorbent article is a multi-layered construction, primarily intended to contain body fluids.
• the absorbent article usually has at least one topsheet positioned bodyside, an absorbent layer or absorbent core which receives the liquid, and a liquid impermeable backsheet. Frequently, hydrophilic interlayers are incorporated to better distribute the liquid over the absorbent core.
• absorbent articles are wound coverings, wound plasters, surgical table covers or incontinence articles.
• the invention comprises absorbent articles comprising at least one liquid pervious sheet made from a sheet hydrophilized with the composition of the invention.
• substrates which already have a different coating before coating with the agent according to the invention, or which receive a further coating after coating with the agent according to the invention.
• the invention also includes substrates of such thermoplastic materials whose originally hydrophobic properties have been altered by additives (e.g., hydrophilic melt additives) prior to applying the composition of the invention.
• additives e.g., hydrophilic melt additives
• the substrate chosen was a hydrophobic thermally bonded polypropylene spunbonded nonwoven having a basis weight of 30 g / m 2.
• the hydrophilizing coatings were applied by spray application from aqueous ethanolic solution and dried at room temperature.
• the amount of application (based on the unextruded fleece) is determined by weight.
• the coated fleece is placed on 2 layers of filter paper (MN 618), which simulate the absorption layer in hygiene or medical articles.
• a nonwoven sample is placed on 2 layers of filter paper. At intervals of 1 cm, 20 ⁇ 1 drop of artificial urine (0.9% by weight saline solution) is added dropwise to the fleece. The drip points are marked before. The number of drops that sink within 2 seconds is counted.
• the experiment is repeated twice. In the repetition, the same dripping points are to be used.
• the sample is clamped on an inclined plane, which is beveled at an angle of 30 °. 2 drops of artificial urine are given at the top of the sample. The running length of the liquid is measured.

Landscapes

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

Applications Claiming Priority (1)

Publications (2)

Family

ID=54198922

Family Applications (1)

Country Status (2)

Citations (28)

Family Cites Families (1)

• 2014
  • 2014-08-20 DE DE102014111881.2A patent/DE102014111881A1/de not_active Ceased
• 2015
  • 2015-08-13 EP EP15180875.5A patent/EP2987905B1/fr not_active Not-in-force

Patent Citations (28)

Also Published As

Similar Documents

Legal Events