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WO1996007385A2 - Article d'hygiene - Google Patents

Article d'hygiene Download PDF

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Publication number
WO1996007385A2
WO1996007385A2 PCT/EP1995/003434 EP9503434W WO9607385A2 WO 1996007385 A2 WO1996007385 A2 WO 1996007385A2 EP 9503434 W EP9503434 W EP 9503434W WO 9607385 A2 WO9607385 A2 WO 9607385A2
Authority
WO
WIPO (PCT)
Prior art keywords
weight
slip agent
hygiene article
hygiene
slip
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.)
Ceased
Application number
PCT/EP1995/003434
Other languages
German (de)
English (en)
Other versions
WO1996007385A3 (fr
Inventor
Eddy Taal
Eckhard Pürkner
Walter Weis
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 WO1996007385A2 publication Critical patent/WO1996007385A2/fr
Publication of WO1996007385A3 publication Critical patent/WO1996007385A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof

Definitions

  • the invention relates to a hygiene article and its manufacture.
  • a hygiene article is to be understood as a liquid-absorbing molded body which consists of a core made of absorbent material and a shell made of liquid-permeable sheet material and usually also contains a liquid-impermeable layer on one side.
  • Specific objects are e.g. Bandages for incontinence and feminine hygiene (sanitary napkins or panty liners).
  • the hygiene article In order to achieve a secure fit of this hygiene article, it is usually attached to the clothing, e.g. in a slip.
  • the hygiene article has a self-adhesive layer made of a pressure sensitive adhesive. This is a permanently sticky adhesive that adheres immediately to all substrates with light pressure. Those made with the pressure sensitive adhesive
  • a disadvantage of the use of pressure-sensitive adhesives in hygiene articles is that a protective layer is also necessary until use, which prevents them from sticking to unwanted substrates. different. It consists of a non-adhesive or poorly adhesive layer, in particular siliconized paper. The paper is thrown away in use.
  • Another disadvantage of the pressure sensitive adhesive is that it cannot always be removed from the item of clothing without leaving any residue.
  • EP 0211 311 deals with this problem of non-destructive and residue-free removal of the hygiene article. It describes an absorbent molded body, for example a sanitary napkin or panty liner, with a core made of absorbent material and a casing made of liquid-permeable sheet material, whereby One side of the molded body on the surface of the casing is provided with a pressure-sensitive self-adhesive layer covered with a removable protective film, which consists of a pressure-sensitive hot-melt adhesive made of 20 to 80% essentially amorphous olefinic polymers, 20 to 80% tackifying resins and 0 to There is 80% plasticizer oil.
  • the hot melt pressure sensitive adhesive is characterized in that it consists of atactic polymers and has a shear strength of less than 1 minute.
  • the task according to the invention was to provide hygiene articles which can do without a pressure-sensitive adhesive and thus without a protective film and which nevertheless ensure a secure fit and can be removed again from the item of clothing without destruction and without residue.
  • the solution according to the invention can be found in the patent claims. It essentially consists of using anti-slip agents instead of pressure sensitive adhesives.
  • Antislip agents are intended to prevent slippage, that is to say an unintentional sliding displacement of two objects relative to one another, even at very low pressure, but to enable their separation from one another without further ado. This is generally achieved in that the antislip agent opposes large resistance to movements in the sliding direction, but movements perpendicular to it have no or so little resistance that the surface of the separated objects is not damaged.
  • the tensile shear strength according to DIN 53283 should be very high and the tensile strength perpendicular to the adhesive surface according to DIN 53288 should be very small.
  • an anti-slip agent usually contains the following components: resin, wax, plasticizer, stabilizer, pigment, filler, etc.
  • the anti-slip agent differs from a pressure sensitive adhesive less in the type of base polymer than in the fact that it contains no tackifier, but rather release agent.
  • Waxes are particularly suitable release agents. They have a melting point of at least 40 ° C, are relatively low-viscosity and, unlike many resins, do not pull any threads. Specific waxes are: paraffin wax with melting points in the range from 45 to 70 ° C.
  • microcrystalline waxes with melting point ten in the range from 60 to 95 ° C microcrystalline waxes with melting point ten in the range from 60 to 95 ° C
  • synthetic Fischer-Tropsch waxes with melting points in the range from 100 to 115 ° C synthetic Fischer-Tropsch waxes with melting points in the range from 100 to 115 ° C
  • polyethylene waxes with melting ranges between 85 and 140 ° C and molecular weights in the range from 500 up to 3500 microcrystalline waxes with melting point ten in the range from 60 to 95 ° C
  • synthetic Fischer-Tropsch waxes with melting points in the range from 100 to 115 ° C synthetic Fischer-Tropsch waxes with melting points in the range from 100 to 115 ° C
  • polyethylene waxes with melting ranges between 85 and 140 ° C and molecular weights in the range from 500 up to 3500 polyethylene waxes with melting ranges between 85 and 140 ° C and molecular weights in the range from 500 up to 3500.
  • Tackifying resins are either not contained at all or are contained in minor amounts in the anti-slip agent.
  • Resins may be included, e.g. Hydrocarbon resins, especially petroleum resins. They are formed by polymerizing lower unsaturated hydrocarbons with an average of 5 carbon atoms per molecule (so-called Cs resins with average molecular weights of approximately 1200 to 1500). By polymerizing unsaturated hydrocarbons with nine carbon atoms, e.g. The so-called Cg resins are obtained indenes, methylindenes and styrene derivatives. Mixed polymerizations of C5 and Cg hydrocarbons lead to stable thermoplastic resins with softening points between 70 and 120 ° C.
  • the basic polymers are mainly polyolefins and rubbers.
  • Polyolefins have the general formula (-CH2 * -CR 1 R 2 ) n , where R 1 is mostly H and R 2 is H and straight-chain or branched saturated, saturated aliphatic or cycloaliphatic or aromatic groups, for example butyl, Propyl, butyl and cyclohexyl. If there are several components in one molecule, they are copolymers.
  • Preferred copolymers are based on ethylene and vinyl acetate. They are expediently low-viscosity, ie their melt index is in the range from 800 to 3000 g / 10 min according to DIN 53735.
  • Preferred base polymers are ethylene / vinyl acetate copolymers, in particular with a content of approx. 10 to 40, in particular approx. 30% by weight of vinyl acetate, for example Escorene Ultra from Exxon or the amorphous copolymer of ⁇ -olefins Vestoplast from Chem. Werke Huls AG. Further suitable anti-slip agents are described in DE 4230472.
  • polyolefin rubbers ie elastomers with rubber character based on olefins, in particular copolymers of ethylene and propylene (EPDM) or terpolymers of ethylene, propylene and a non-conjugated diene.
  • EPDM ethylene and propylene
  • the synthetic rubbers are particularly suitable as a basis for the anti-slip agents.
  • the styrene copolymers are again of particular importance, in particular styrene / butadiene rubber and styrene / butadiene / styrene rubber.
  • a suitable styrene block copolymer is e.g. the Cariflex TR-KX 138 S from Shell or the Stereon 840 A from Firestone.
  • Suitable anti-slip agents based on styrene copolymers are described in DE 4230473.
  • the anti-slip agent contains the components just mentioned in the following concentrations: 1. 30 to 100, in particular 70 to 100% by weight of at least one of the base polymers,
  • the antislip agent is a dispersion or solution, the above proportions relate to the solids content.
  • the recipe expediently consists of
  • the anti-slip agent is prepared in a known manner by mixing the components.
  • the use of water and in particular organic solvents is preferably dispensed with.
  • the anti-slip agent is preferably applied from the melt to the hygiene article, but application from an aqueous dispersion or organic solution is also possible, in particular in the form of pastes (viscosity from 20 to 100 Pas at 20 ° C. according to ASTM D 323673).
  • Highly concentrated aqueous dispersions with a solids content of 40 to 60% are expediently dried with infrared radiation or with high frequency.
  • the devices for applying adhesive are also known (see, for example, Ullmanns Enclyclopadie der techn. Chemie Volume 14, pp. 244 to 246). Specifically, the application by spraying, with wide slot nozzles, with anilox rollers and after the transfer process with the aid of silicone paper may be mentioned. However, a screen printing method is expediently used.
  • the anti-slip agent is pressed through a plastic or metal sieve with the aid of a doctor blade.
  • the underside of the sieve is provided with a coating, in which the places to be provided with adhesive are cut out in the manner of a template, so that the adhesive can only pass through the sieve at the free places.
  • a rotary screen printing machine is preferably used, in which the screen material is stretched on cylinders. The squeegees graze on the inside of the cylinders. If the antislip agent is applied from the melt, the temperature of the sieve must be carefully controlled.
  • the anti-slip agent can be applied to the water-impermeable layer, in particular to the polyethylene film.
  • the anti-slip agent is preferably applied to the covering made of a non-woven fabric. It usually consists of fibers from polyethylene, polypropylene and / or viscose.
  • the anti-slip agent is generally applied in an amount of 15 to 150 g / ⁇ ) 2, preferably in an amount of 50 to 100 g / m 2 .
  • the shape of the anti-slip surfaces can be any.
  • the anti-slip agent is preferably in the form of a strip or applied in a wavy manner, it also being possible to write characters or words. A punctiform application is particularly recommended. If the antislip agent is also impermeable to water, application over the entire surface is recommended, so that the use of the impermeable film can also be dispensed with.
  • the above anti-slip agent is applied to a film made of PE at 140 ° C. and a production speed of 40 m / min using a rotary screen printing machine.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hematology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention concerne des articles d'hygiène, en particulier des serviettes hygiéniques et des protège-slips caractérisés en ce qu'ils présentent un agent antiglissant à la place d'un adhésif. Il n'est ainsi plus nécessaire de recouvrir l'adhésif d'un papier de silicone. L'agent antiglissant est produit principalement à base d'un copolymère éthylène-acétate de vinyle ou d'un copolymère de styrène.
PCT/EP1995/003434 1994-09-10 1995-09-01 Article d'hygiene Ceased WO1996007385A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944432298 DE4432298A1 (de) 1994-09-10 1994-09-10 Hygieneartikel
DEP4432298.4 1994-09-10

Publications (2)

Publication Number Publication Date
WO1996007385A2 true WO1996007385A2 (fr) 1996-03-14
WO1996007385A3 WO1996007385A3 (fr) 1996-05-30

Family

ID=6527920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/003434 Ceased WO1996007385A2 (fr) 1994-09-10 1995-09-01 Article d'hygiene

Country Status (2)

Country Link
DE (1) DE4432298A1 (fr)
WO (1) WO1996007385A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000061695A1 (fr) * 1999-04-13 2000-10-19 Henkel Kommanditgesellschaft Auf Aktien Colle a fusion de faible viscosite

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY193634A (en) 2015-01-02 2022-10-20 Essity Hygiene & Health Ab Absorbent article

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PH12013A (en) * 1974-10-04 1978-10-06 Personal Products Co Sanitary napkin having improved attachment system
US4536433A (en) * 1983-09-16 1985-08-20 Sagi Zsigmond L Slip resistant absorbent pad
GB8505805D0 (en) * 1985-03-06 1985-04-11 Exxon Chemical Patents Inc Disposable liquid absorbent products
JPS6266857A (ja) * 1985-09-18 1987-03-26 花王株式会社 吸収性物品
SE458585B (sv) * 1985-10-03 1989-04-17 Moelnlycke Ab Foer engaangsanvaendning avsett baedd- eller saengskydd
KR870008000A (ko) * 1986-02-05 1987-09-23 하루히사 혼조 미끄럼 방지재
US4834739A (en) * 1987-12-17 1989-05-30 Kimberly-Clark Corporation External feminine protection device with skid-resistant coating for holding the device in place
DE4230473A1 (de) * 1992-09-14 1994-03-17 Henkel Kgaa Antislipmittel
DE4230472A1 (de) * 1992-09-14 1994-03-17 Henkel Kgaa Antislipmittel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000061695A1 (fr) * 1999-04-13 2000-10-19 Henkel Kommanditgesellschaft Auf Aktien Colle a fusion de faible viscosite
US6818093B1 (en) 1999-04-13 2004-11-16 Henkel Kommanditgesellschaft Auf Aktien Hot-melt adhesive of low viscosity

Also Published As

Publication number Publication date
DE4432298A1 (de) 1996-03-14
WO1996007385A3 (fr) 1996-05-30

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