EP2247273A2 - Article d'hygiène absorbant - Google Patents

Article d'hygiène absorbant

Info

Publication number
EP2247273A2
EP2247273A2 EP09717093A EP09717093A EP2247273A2 EP 2247273 A2 EP2247273 A2 EP 2247273A2 EP 09717093 A EP09717093 A EP 09717093A EP 09717093 A EP09717093 A EP 09717093A EP 2247273 A2 EP2247273 A2 EP 2247273A2
Authority
EP
European Patent Office
Prior art keywords
sensitive adhesive
pressure
layer
adhesive precursor
outer layer
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Withdrawn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
EP09717093A
Other languages
German (de)
English (en)
Inventor
Eckhard Pürkner
Achim Schmitt
Heinrich TRÄGER
Holger TÖNNIESSEN
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP2247273A2 publication Critical patent/EP2247273A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/58—Adhesives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/5605—Supporting or fastening means specially adapted for sanitary napkins or the like
    • A61F13/5611—Supporting or fastening means specially adapted for sanitary napkins or the like using fastening strips, e.g. adhesive, on the undergarment-facing side
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2809—Web or sheet containing structurally defined element or component and having an adhesive outermost layer including irradiated or wave energy treated component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
    • Y10T442/678—Olefin polymer or copolymer sheet or film [e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.]

Definitions

  • the invention relates to an absorbent hygiene article.
  • the invention further relates to a method for producing such hygiene articles.
  • Absorbent hygiene articles such as panty liners or incontinence products are known in the market. Production and construction of such hygiene articles are also known in various embodiments. It has proven to be expedient that the outside of such hygiene articles is coated with a pressure-sensitive adhesive in order to ensure a secure fit of such products.
  • the adhesion should be as stable as possible on the outside of the article, on the other hand, the adhesion to the garment should be fixed so far as possible, a slippage of the article is avoided. However, it should be ensured that when removing the hygiene product substantially no adhesive adheres to the surface of the garment.
  • absorbent articles which consist of several layers. On the outside, a layer of a UV-curing adhesive is applied, wherein the adhesive is cured by UV irradiation with different radiation doses.
  • the Pressure Sensitive Adhesives (PSA) described there are applied to the hygiene article as a hot melt adhesive.
  • EP 0784459 is known. This describes multi-layer absorbent hygiene articles, wherein on the outer side of a layer of a pressure-sensitive adhesive is applied.
  • Adhesives are described as being elastomeric hot-melt adhesives based on SBS or SIS copolymers. Such non-reactive hot melt adhesives are applied in a molten state and then form a sticky, adherent layer upon cooling. The application of such hot melt adhesives usually takes place at temperatures above 130 ° C. At these temperatures, the viscosity of the adhesives is so low that they can be applied to the substrate in thin layers by known application methods.
  • a major disadvantage of these hot applied adhesives is that the process of melting, feeding to the applicators, and application are energy intensive. Furthermore, appropriate measures to the stability of the processing equipment to heat must be carried out.
  • Another disadvantage in the application is that the corresponding hygiene products should be as flexible as possible. For this purpose, as thin as possible plastic films are usually used as the outer coating layer. However, such films are thermally sensitive, for example, the softening temperature of polyethylene as LDPE is below 120 0 C. Thus, the use of hot melt adhesives so limits set or thermally stable films must be used.
  • the present invention therefore relates to a multi-layer fluid-absorbent hygiene article for use in a garment, the article having an outer layer, a layer of a UV-crosslinking pressure-sensitive adhesive being applied to this outer layer, the pressure-sensitive adhesive consisting of a liquid pressure-sensitive adhesive precursor being crosslinked with UV radiation. Radiation is prepared and the pressure-sensitive adhesive precursor at a temperature of at most 80 ° C has a viscosity of less than 5000 mPas.
  • the invention further provides a method for producing a multi-layered fluid-absorbent hygiene article, wherein the hygiene article is prepared in a known per se, wherein on the outside of a film is attached, and on this film at temperatures below 80 0 C, a liquid pressure-sensitive adhesive precursor is applied , wherein this layer is crosslinked by UV radiation to form a pressure-sensitive adhesive.
  • Fluid-absorbent sanitary products generally consist of several layers each providing specific properties for this product.
  • an outer layer (back sheet) is provided. This serves as a carrier material for the absorbent hygiene article. It is connected to the other components by adhesive and optionally embossing. Optionally, it is possible to use additional additional inner layers to achieve special performance properties. Materials and adhesives for bonding the various layers together are known to those skilled in the art.
  • the outer layer is required to be moisture impermeable. However, it is advantageous if it is breathable, i. Gases or water vapor can pass.
  • the outer layer can be made on the basis of fibers or they are films. In this case, the layer may be tensile, or it has an elasticity. However, it is necessary that this layer is flexible and also tear-resistant.
  • layers of fibers are known, for example polyolefin fibers, such as PP or PE fibers, 2-component fibers or polyester fibers, such as polyethylene terephthalate fibers.
  • the fiber materials must be connected together in such a way that a hydrophobic, dense layer is formed. It can be around Nonwoven fabrics act (non-woven), or even a solid tissue, but this must have a high degree of flexibility.
  • films are essentially elastic films, for example based on thermoplastic elastomers.
  • polymers are styrene block copolymers, such as SBS, SIS, SEBS, SIBS, elastomeric polyurethanes, polyesters, polyethers, polyesteramides, EVA, rubber-elastic materials, such as EBR or SBR rubber or, in particular, polyolefins, such as polypropylene, polyethylene and copolymers. They often have a softening point of up to 130 0 C. Polyolefin films have been found to be particularly suitable, for example, from LDPE or LLDPE, which have a low softening point.
  • this softening point should be below 120 0 C (measured by ring / ball method, DIN 52011).
  • the films or the fabric should be hydrophobic. However, it may for example contain pores. Furthermore, various subregions with hydrophilic properties may be included.
  • the sheet material may also be made of polyolefins blended with other polymers, e.g. EVA, insist.
  • This film material is also very flexible, it may have a softening point below 100 ° C.
  • the thickness of the outer layer is 5 to 500 .mu.m, in particular up to 100 microns. Particularly preferred may be the layer thickness of 10 to 30 microns.
  • the outer layer may be smooth, it may be embossed or has from their production structures.
  • a characteristic of the outer layer is that it is hydrophobic. This is to retain liquids on the inside in the absorbent core.
  • the advantageously existing breathability of the outer layer can be achieved by polarity of the materials, by structure of the layer material or by pores in the layer. Such materials, in particular films, are commercially available.
  • a liquid pressure-sensitive adhesive precursor suitable according to the invention is applied on the outer layer. This should be able to be applied at low temperatures, ie the viscosity should be below 5000 mPas at temperatures up to 80 ° C. If the viscosity is too high, the selection of the application method is limited. The viscosity should preferably be chosen so that the application can be carried out at a temperature below 80 0 C, in particular below 50 ° C. At these low temperatures damage to the thin outer layer is not given.
  • the pressure-sensitive adhesive precursor suitable according to the invention should be crosslinkable by radiation-crosslinkable groups.
  • the crosslinking produces a non-flowable, permanently tacky layer which has good adhesion to the substrate of the outer layer.
  • One component of an adhesive precursor suitable according to the invention are mono-, di- or higher-functional acrylate or methacrylate esters.
  • acrylate or methacrylate esters include, for example, esters of acrylic acid or methacrylic acid with aromatic, aliphatic or cycloaliphatic polyols or of polyether alcohols.
  • Examples of monofunctional acrylate esters which can be used are esters of (meth) acrylic acid with monohydric alcohols.
  • these are aliphatic and / or aromatic alcohols having an OH group.
  • the number of carbon atoms may preferably be between 1 and 30 carbon atoms.
  • Examples of such alcohols are methanol, ethanol, propanol, butanol, hexanol, octanol, decanol or their isomers, higher homologues of the alkanols, alkylphenols such as nonylphenols, monofunctional low molecular weight polyethers such as unilaterally etherified polyethylene, polypropylene, polybutylene ethers with up to 10 repetitive units.
  • Such alcohols can be reacted with (meth) acrylic acid to give the corresponding esters by methods known to those skilled in the art. An analogous reaction is also possible with the polyols described below.
  • suitable compounds are acrylic or methacrylic esters of the aromatic, cycloaliphatic, aliphatic, linear or branched C 1-30 monoalcohols or of corresponding ether alcohols.
  • suitable compounds are 2-ethylhexyl acrylate, octyl / decyl acrylate, isobornyl acrylate, 3-methoxy-butyl acrylate, 2-phenoxyethyl acrylate, benzyl acrylate or 2-methoxypropyl acrylate.
  • polyols for the preparation of multifunctional (meth) acrylate esters a multiplicity of polyols can be used.
  • these are aliphatic polyols having 2-4 OH groups per molecule and 2 to about 30 C atoms.
  • Suitable aliphatic polyols are, for example, ethylene glycol, propanediol 1, 2 or -1, 3, butanediol 1, 4, butanediol 1, 3, butanediol-2,3, butenediol 1, 4, pentanediol 1, 5, pentene diols, hexanediol-1, 6, octanediol-1, 8, dodecanediol and higher homologs, isomers and mixtures of such compounds.
  • higher-functional alcohols such as glycerol, trimethylolpropane, pentaerythritol or sugar alcohols, such as sorbitol or glucose, and oligomeric ethers or reaction products with ethylene or propylene oxide.
  • the reaction products of low molecular weight, polyfunctional alcohols with alkylene oxides so-called polyether polyols
  • the alkylene oxides preferably have from two to about four carbon atoms.
  • Suitable examples are the reaction products of ethylene glycol, propylene glycol, the isomeric butanediols or hexanediols, glycerol, trimethylolethane or trimethylolpropane, pentaerythritol with ethylene oxide, propylene oxide or butylene oxide or mixtures thereof.
  • Examples of such (meth) acrylate esters are neopentyl glycol di (meth) acrylate, 1,8-octanediol di (meth) acrylate, butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, Trimethylolpropantri (nneth) acrylate, pentaerythritol tetra (nneth) acrylate, and (meth) acrylate esters of sorbitol and other sugar alcohols, ethylene oxide-modified Neopentylglykoldi (meth) acrylates, propylene oxide-modified Neopen- tylglykoldi (meth) acrylates, ethylene oxide-modified or propylene oxide -modified 1,6-hexanediol di (meth) acrylates, polyethylene glycol di (meth) acrylates, polypropylene glycol di
  • Mn molecular weight
  • urethane (meth) acrylates are reaction products of alcohols, especially monoalcohols, diols and / or triols with di- or tri-isocyanate compounds.
  • the proportions are chosen so that terminally NCO-functionalized prepolymers are obtained.
  • the prepolymers are intended to be linear, i. are produced predominantly from monoalcohols or diols and diisocyanates. An additional use of small amounts of trifunctional polyols or isocyanates is possible.
  • Such PU prepolymers can then be reacted with OH-reactive (meth) acrylic compounds to the PU (meth) acrylates.
  • Suitable monomeric polyisocyanates are 1,5-naphthylene diisocyanate, 2,2'-, 2,4- and / or 4,4'-diphenylmethane diisocyanate (MDI), hydrogenated MDI (Hi 2 MDI), allophanates of MDI, xylylene diiso - cyanate (XDI), tetramethylxylylene diisocyanate (TMXDI), 4,4'-diphenyldimethyl methane diisocyanate, 4,4'-dibenzyl diisocyanate, 1, 3-phenylene diisocyanate, 1, 4-phenylene diisocyanate, the isomers of toluene diisocyanate (TDI), 1-methyl 2,4-diisocyanato-cyclohexane, 1,6-diisocyanato-2,2,4-thmethylhexane, 1,
  • Suitable trifunctional isocyanates are polyisocyanates which are formed by trimerization or oligomerization of diisocyanates or by reaction of diisocyanates with polyfunctional compounds containing hydroxyl or amino groups.
  • Suitable for use as a polyol for example, low molecular weight polymers selected from polyester, polyether, polycarbonate, polyacetal polyols having terminal OH groups, or aliphatic or aromatic monohydric to trihydric alcohols, having a molecular weight (Mn) of about 200 to 5000 g / mol (number average molecular weight, M N as determined by GPC).
  • Mn molecular weight
  • Suitable polyesters can be obtained by polycondensation of acid and alcohol components.
  • Suitable polycarboxylic acids are those having an aliphatic, cycloaliphatic, aromatic or heterocyclic basic body.
  • diols for the reaction with the polycarboxylic acids a large number of polyols can be used.
  • polyols with 2 OH groups per molecule and 2 to 20 C atoms are suitable.
  • polyether polyols can be used, preferably obtained by reacting low molecular weight polyols with alkylene oxides having two to four carbon atoms.
  • polyacetals which have terminal OH groups.
  • polystyrene resin can be selected based on polycarbonates or polycaprolactones.
  • suitable polyols may be prepared based on polyacrylates. These are polymers produced by polymerization of poly (meth) acrylic esters.
  • the oligomeric polyols should contain 1 to 3 OH groups, in particular 2 terminal OH groups.
  • the polyols suitable for the preparation of the PU prepolymers should have a molecular weight of up to 5000 g / mol. In particular, the molecular weight should be less than 3000 g / mol.
  • polyether polyols the molecular weight should be between 200 and 2000 g / mol, in particular between 400 and 1000 g / mol.
  • polyesterpolyols the molecular weight should preferably be less than 1500 g / mol.
  • Particularly suitable are linear polyether polyols.
  • Suitable monofunctional compounds are, for example, aliphatic alcohols having 1 to 30 C atoms, such as, for example, ethanol, propanol, butanol, hexanol, octanol and higher homologs, and the corresponding thio compounds. It is also possible to use aromatic alcohols, for example alkylphenols, such as nonylphenol, or monohydroxy- or monoamino-functional oligomeric ethers. In particular, the functional group should be an OH group.
  • Suitable compounds are, for example, polyols having 2 to 40 carbon atoms, for example ethylene glycol, propanediol, butanediol and higher homologs.
  • the reaction of the polyols with the polyisocyanates can be carried out in a known manner, for example in the presence of solvents, but preference is given to working in a solvent-free form.
  • the temperature is usually increased, for example between 40 to 80 ° C.
  • catalysts which are customary for accelerating the reaction in polyurethane chemistry may be added to the reaction mixture, for example dibutyltin di-laurate, dimethyltin dineodecanoate or diazabicyclooctane (DABCO).
  • the NCO groups are subsequently reacted with compounds which carry a functional group which can react with isocyanates and has, as a further functional group, a crosslinkable by radical polymerization double bond.
  • This usually has a molecular weight of less than 1000 g / mol.
  • Corresponding OH-bearing esters are, for example, 2-hydroxyethyl (meth) acrylamide, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylamide, N Hydroxyethyl (meth) acrylamide, reaction products of glycidyl ethers or esters with acrylic or methacrylic acid, adducts of ethylene oxide or propylene oxide with (meth) acrylic acid, reaction products of hydroxyl acrylates with ⁇ -caprolactone or partial transesterification of Poylalkoholen, such as pentaerythritol, glycecane or Thmethylolpropane, with (meth) acrylic acid.
  • Poylalkoholen such as pentaerythritol, glycecane or Thmethylolpropane
  • auxiliaries and additives additionally usable in the pressure-sensitive adhesive precursor for the purposes of the present invention include, for example, plasticizers, stabilizers, antioxidants, adhesion promoters, resins, non-reactive polymers, dyes, fillers or pigments.
  • the suitable pressure-sensitive adhesive contains at least one tackifying resin.
  • the resin causes additional stickiness.
  • all resins which are compatible with the pressure-sensitive adhesive and the adhesive precursor can be used, i. form a largely homogeneous mixture.
  • resins which have a softening point of 70 to 140 0 C are, for example, aromatic, aliphatic or cycloaliphatic hydrocarbon resins, as well as modified or hydrogenated versions thereof. Examples of these are aliphatic or alicyclic petroleum hydrocarbon resins and their hydrogenated derivatives.
  • the resins are liquid types at room temperature.
  • the viscosity should preferably be below 200,000 mPas, in particular from 1,000 to 100,000 mPas. Also mixtures of solid and liquid resins are possible.
  • the resins generally have a low molecular weight below 1500 g / mol, in particular below 1000 g / mol. They may be chemically inert, or they still carry functional groups, such as double bonds or OH groups.
  • the resin can be used in an amount of 0 to 70 wt .-%, preferably from 10 to 40 wt .-% based on the adhesive precursor.
  • a photoinitiator As a further necessary constituent of the pressure-sensitive adhesive or of a precursor, a photoinitiator is used which upon irradiation with light of a wavelength of about 215 nm to about 480 nm is capable of initiating a free-radical polymerization of olefinically unsaturated double bonds.
  • a photoinitiator in principle all commercial photoinitiators are suitable which are compatible with the pressure-sensitive adhesive precursor suitable according to the invention.
  • initiators are all Norhsh Type I fragmenting and Norrish Type II substances.
  • Such initiators are known in the art and can be purchased Speedcure ®, for example, under the trade names Irgacure ®, Darocure ®.
  • the amount of initiators is from 0.1 to 5 wt .-%, in particular up to 3 wt .-%
  • thermoplastic polyethers polyesters, polyolefins, polyacrylates or polyamides may be added as non-reactive polymers. These should not have any radiation-reactive groups, but other functional groups may be included, such as OH, NH or epoxy groups. These polymers affect the cohesiveness of the crosslinked adhesive.
  • the adhesive is colored. This can be achieved by pigments or dyes. These are selected so that they do not interfere with radiation crosslinking.
  • the inventively suitable adhesive precursors contain 15 to 60 wt .-% of at least one urethane acrylate compound, 5 to 45 wt .-% of at least one (meth) acrylate ester and 5 to 40 wt .-% of a hydrocarbon resin and 0.1 to 15 wt. % of additives, such as a photoinitiator, where the sum should be 100%.
  • the composition is solvent-free.
  • the pressure-sensitive adhesive precursors which can be used according to the invention generally have a viscosity of less than 5000 mPas at 80 ° C. (Brookfield RVT, at the indicated temperature, 50 rpm, EN ISO 2555).
  • the viscosity of the adhesive is selected so that it has a viscosity of 200 mPas to about 3000 mPas, in particular below 1500 mPas, at typical processing temperatures. Suitable processing temperatures are for example 20 to about 80 ° C, in particular below 50 0 C.
  • the inventively suitable liquid or pasty adhesive precursors are to be applied to the outer side of the outer layer.
  • the adhesive may For example, be applied to the surface with a nozzle or with a spray device.
  • the adhesive precursor Immediately after application of the adhesive precursor, it is crosslinked by actinic radiation.
  • actinic radiation This may be electron radiation, but UV radiation is preferred, in particular UV-C radiation.
  • the wavelength can be from 210 to 450 nm.
  • the radiation intensity can be adapted to the adhesive and the initiator used.
  • the irradiation can be carried out continuously or a flash irradiation is carried out.
  • the irradiation time 0.01 sec. up to 10 sec. be.
  • Devices and process parameters for crosslinking UV-active adhesives are known to the person skilled in the art and can be selected appropriately.
  • the adhesive of the invention in predetermined forms, such as logos, logos, patterns, figures or the like is applied. If necessary, it is possible to produce a color-printed surface.
  • the coated surface can also be applied only to partial areas, usually more than 50% of the area is covered.
  • PSA pressure-sensitive adhesive
  • a protective layer can be applied to the adhesive layer.
  • This is made of anti-adhesive coated material that adheres to the adhesive, but can be easily removed by peeling off the adhesive surface.
  • These are the known coated or uncoated papers or films (release liner).
  • the protective layer is coated anti-adhesive, or it consists of poorly adhering material. These are known to the person skilled in the art, for example they may be silicone-coated paper or films.
  • the process according to the invention accelerates the production process of multi-layered hygiene articles.
  • a liquid precursor which is liquid and printable at low temperature, rapid coating is achieved.
  • Radiation crosslinking produces a pressure-sensitive adhesive layer firmly bonded to the outer layer immediately after application.
  • the multi-layer fluid-absorbent hygiene article according to the invention can be designed on the inside according to the known embodiments.
  • a pressure-sensitive adhesive layer is applied on the outside, which may be formed uniformly or as a pattern.
  • the adhesion of this pressure-sensitive adhesive layer to the fiber web or the film of the outside is good.
  • the outside in use is opposite a garment of fabric.
  • the hygiene article is then fixed under slight pressure in its position.
  • the adhesion of the PSA layer to the garment is significantly lower than the outer layer, it can be ensured that a residue-free removal from the clothing surface is possible by applying the inventively suitable UV-crosslinking adhesive.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

Article d'hygiène multicouche, absorbant de fluide, utilisable dans un article vestimentaire, présentant une couche externe, ladite couche externe présentant une couche d'un agent auto-adhésif, réticulable aux UV, l'agent auto-adhésif étant constitué par un précurseur auto-adhésif liquide qui est réticulé par rayonnement UV, caractérisé en ce que le précurseur auto-adhésif présente, à une température de 80°C maximum, une viscosité inférieure à 5000 mPas.
EP09717093A 2008-03-03 2009-01-26 Article d'hygiène absorbant Withdrawn EP2247273A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810012247 DE102008012247A1 (de) 2008-03-03 2008-03-03 Absorbierendes Hygieneprodukt
PCT/EP2009/050815 WO2009109417A2 (fr) 2008-03-03 2009-01-26 Article d'hygiène absorbant

Publications (1)

Publication Number Publication Date
EP2247273A2 true EP2247273A2 (fr) 2010-11-10

Family

ID=40451346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09717093A Withdrawn EP2247273A2 (fr) 2008-03-03 2009-01-26 Article d'hygiène absorbant

Country Status (8)

Country Link
US (1) US20100330860A1 (fr)
EP (1) EP2247273A2 (fr)
JP (1) JP2011514195A (fr)
KR (1) KR20100126342A (fr)
CN (1) CN101959487A (fr)
BR (1) BRPI0908574A2 (fr)
DE (1) DE102008012247A1 (fr)
WO (1) WO2009109417A2 (fr)

Families Citing this family (10)

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ES2643697T3 (es) 2011-06-23 2017-11-23 Fiberweb, Llc Artículo multicapa permeable al vapor y prácticamente impermeable al agua
US10369769B2 (en) 2011-06-23 2019-08-06 Fiberweb, Inc. Vapor-permeable, substantially water-impermeable multilayer article
WO2012178011A2 (fr) 2011-06-24 2012-12-27 Fiberweb, Inc. Article multicouches perméable à la vapeur d'eau, mais essentiellement imperméable à l'eau
CN111662669B (zh) * 2019-03-06 2022-03-15 苏州科化聚慧新材料有限公司 一种亲水性热熔型胶粘剂及其制备方法与应用
EP3999607A2 (fr) 2019-07-19 2022-05-25 Arkema France Compositions durcissables utiles pour obtenir des produits durcis non sensibilisants
US12187856B2 (en) 2019-08-23 2025-01-07 The Procter & Gamble Company Depolymerization of polymers
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WO2009109417A2 (fr) 2009-09-11
JP2011514195A (ja) 2011-05-06
KR20100126342A (ko) 2010-12-01
BRPI0908574A2 (pt) 2015-09-22
CN101959487A (zh) 2011-01-26
US20100330860A1 (en) 2010-12-30
DE102008012247A1 (de) 2009-09-10
WO2009109417A3 (fr) 2010-07-01

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