WO2016200112A1 - Procédé de fabrication d'un noyau absorbant présentant une résistance supérieure à l'état humide - Google Patents

Procédé de fabrication d'un noyau absorbant présentant une résistance supérieure à l'état humide Download PDF

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Publication number
WO2016200112A1
WO2016200112A1 PCT/KR2016/005988 KR2016005988W WO2016200112A1 WO 2016200112 A1 WO2016200112 A1 WO 2016200112A1 KR 2016005988 W KR2016005988 W KR 2016005988W WO 2016200112 A1 WO2016200112 A1 WO 2016200112A1
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WO
WIPO (PCT)
Prior art keywords
absorbent core
absorbent
particles
cross
liquid
Prior art date
Application number
PCT/KR2016/005988
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English (en)
Korean (ko)
Inventor
김영삼
유주환
Original Assignee
주식회사 엘지화학
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
Priority claimed from KR1020160044888A external-priority patent/KR101749723B1/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to EP16807752.7A priority Critical patent/EP3170483B1/fr
Priority to CN201680002359.XA priority patent/CN106659615B/zh
Priority to US15/504,158 priority patent/US20170273836A1/en
Publication of WO2016200112A1 publication Critical patent/WO2016200112A1/fr

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Classifications

    • 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
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • 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
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • 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
    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • 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
    • 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
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor

Definitions

  • the present invention relates to a method for manufacturing an absorbent core with enhanced wet strength, and more particularly, wet strength prepared from cross-sectional cross-section yarn and superabsorbent polymer into which particles having specific properties are introduced into polyethylene terephthalate (PET) It relates to an enhanced absorbent core.
  • PET polyethylene terephthalate
  • Disposable diapers absorb hygiene such as blood, urine, and menstrual blood to be hygienic and convenient for the user to use.
  • disposable diapers absorb products secreted by various physiological actions of the wearer (for example, urine, blood, menstrual blood, etc.), and include diapers, women's sanitary napkins, panty liners, etc. .
  • These disposable diapers include as a basic component a liquid permeable top sheet, a liquid impermeable back sheet that forms an outer surface when worn, and an absorbent core disposed between the top sheet and the back sheet. It is composed.
  • the absorption core is an important part that absorbs secretions such as urine.
  • Absorbent cores are means for absorbing and retaining liquid secretions.
  • Absorbent cores are typically liquid absorbents, such as fluff pulp and super absorbent polymers, and tissues for packaging them. And the like, and rapidly absorb body fluid passing through the liquid permeable top sheet and retain the body fluid to prevent the absorbed body fluid from contacting the skin again.
  • Korean Patent Laid-Open Publication No. 2005-0032747 discloses an ultra-thin absorbent core of a disposable diaper manufactured using fluff pulp and a method of manufacturing the same.
  • the use of a large amount of pulp for the conveying role due to the characteristics and the number of voids is a weak point in the recent trend of ultra-thin diapers.
  • the present invention is to solve the problems of the prior art as described above to provide a cross-sectional cross-sectional yarn and cross-sectional cross-sectional yarns having a specific property in polyethylene terephthalate (PET) and a wet strength reinforced absorbent core made from a super absorbent polymer Its purpose is to.
  • PET polyethylene terephthalate
  • a wet strength reinforced absorbent core made from a super absorbent polymer
  • the present invention relates to a liquid permeable top sheet, an absorbent dispersion layer positioned below the upper sheet, an absorbent core positioned below the absorbent dispersion layer to absorb and retain liquid, and a liquid impermeable backsheet positioned below the absorbent core.
  • an absorbent core of an absorbent article comprising
  • the absorbent core comprises an aqueous dispersion comprising polyethylene terephthalate (PET) i) particles having a BET specific surface area of 300 to 1500 m 2 / g and ii) porosity of 50% or more. It provides an absorbent core, characterized in that it comprises a cross-shaped cross-section yarn and a super absorbent polymer prepared by mixing.
  • PET polyethylene terephthalate
  • the present invention also provides an aqueous dispersion comprising 1) polyethylene terephthalate, i) a particle having a BET specific surface area of 300 to 1500 m 2 / g to ii) a porosity of at least 50%. Manufacturing a cross-shaped cross-section yarn to obtain;
  • It provides a method for producing an absorbent core comprising a.
  • the present invention also provides an absorbent article comprising the absorbent core.
  • Absorbent core provided in the present invention can produce an ultra-thin absorbent article while exhibiting the same or better performance than the existing cellulose pulp has the advantage of ensuring the convenience of storage, activity when worn.
  • the absorbent core provided in the present invention includes particles having specific properties in the production of cross-sectional cross-section yarns to increase porosity and impart high hydrophobicity, thereby improving liquid permeability.
  • FIG. 1 is a schematic diagram of a cellulose absorbent core of the prior art.
  • FIG. 2 is a schematic diagram of a release cross-sectional yarn absorbent core of the present invention.
  • FIG. 3 is a schematic diagram of a structure of an absorbent article including a release cross-section yarn absorbent core of the present invention.
  • FIG. 4 is a schematic diagram of a structure of an absorbent article including a cellulose absorbent core of the prior art.
  • the present invention relates to a liquid permeable top sheet, an absorbent dispersion layer positioned below the upper sheet, an absorbent core positioned below the absorbent dispersion layer to absorb and retain liquid, and a liquid impermeable backsheet positioned below the absorbent core.
  • an absorbent core of an absorbent article comprising
  • the absorbent core comprises an aqueous dispersion comprising polyethylene terephthalate (PET) i) particles having a BET specific surface area of 300 to 1500 m 2 / g and ii) porosity of 50% or more. It relates to an absorbent core, characterized in that it comprises a cross-sectional cross-section yarn and a super absorbent polymer prepared by mixing.
  • PET polyethylene terephthalate
  • the present invention also provides a water dispersion comprising 1) polyethylene terephthalate comprising: i) particles having a BET specific surface area of from 300 to 1500 m 2 / g to ii) a porosity of at least 50%; Adding to form a cross-sectional cross-section yarn;
  • the absorbent core may include a liquid permeable top sheet, an absorbent dispersion layer positioned below the upper sheet, an absorbent core positioned below the absorbent dispersion layer to absorb and retain liquid, and a liquid impermeable back sheet positioned below the absorbent core. construct an absorbent article comprising a backsheet).
  • the 'polyethylene terephthalate (PET)' consists of polymerized units of monomer ethylene terephthalate and has a repeating unit of C 10 H 8 O 4 .
  • PET polyethylene terephthalate
  • Polyethylene terephthalate (PET) has excellent heat resistance, stiffness, electrical properties, etc., and its ultimate strength is only slightly reduced even at high temperatures for a long time. Because it belongs to crystalline plastics, it has good resistance to oils such as diesel oil. However, due to ester bonds in the molecular chain, the molded product is prone to change when immersed in acid or alkali over high temperature and long time.
  • the present invention uses polyethylene terephthalate in the form of cross-shaped cross-sectional yarns.
  • the cross-shaped cross section yarn refers to a yarn in which the state of the cross section of the yarn is changed by changing the shape of the nozzle used for spinning synthetic fibers from a general circle to a cross shape.
  • the cross-sectional cross-sectional yarn fibers included in the absorbent core of the present invention have a polyethylene terephthalate having i) 300 to 1500 m 2 / g of BET specific surface area to ii) porosity of 50% or more. It is prepared by adding an aqueous dispersion containing particles.
  • the porosity is increased and high hydrophobicity is imparted to improve the fluid permeability.
  • the particles have a particle size of 2 nm to 50 ⁇ m, or the contact angle to the water is preferably superhydrophobic of 125 ° or more, it is more preferable to have both the particle size and contact angle characteristics It is not limited to this.
  • the aqueous dispersion may include the particles, water and an organic solvent, the organic solvent is methanol, ethanol, isopropyl alcohol (IPA) and It may be at least one selected from the group consisting of acetone, and more preferably use isopropyl alcohol (IPA).
  • organic solvent is methanol, ethanol, isopropyl alcohol (IPA) and It may be at least one selected from the group consisting of acetone, and more preferably use isopropyl alcohol (IPA).
  • Particles introduced during the preparation of the cross-sectional cross-section of the present invention has a particle size of 2 nm to 50 ⁇ m.
  • the particles may also have a BET specific surface area of 300 to 1500 m 2 / g, preferably 500 to 1500 m 2 / g, more preferably 700 to 1500 m 2 / g.
  • the particles may have a superhydrophobicity of 125 ° or more, preferably superhydrophobicity of 140 ° or more, and more preferably 145 ° or more.
  • the particles can also have a porosity of at least 50%, preferably at least 90% of a porosity.
  • Particles of the present invention is not limited to the component as long as the material having the properties of i) to ii), specifically, inorganic oxides such as silica (SiO 2 ), alumina, carbon (Carbon) and titania (TiO 2 ), inorganic Compounds, organic polymers, ion exchange resins, metals, metal salts, and the like may be used, but are not limited thereto. It is preferable to use silica (SiO 2 ).
  • the particles may be included in an amount of 1 to 25 parts by weight based on 100 parts by weight of a mixture of water and an organic solvent.
  • additives such as additives, pH adjusters, surfactants, or stabilizers to prevent gelation, so that the original properties of the particles may be maintained at the time of drying.
  • the mixing rate after the aqueous dispersion is added is preferably mixed at a speed of 200 to 3000 rpm. If the mixing speed is less than 200 rpm, the effect due to mixing does not appear sufficiently, and if the mixing speed exceeds 3000 rpm, there is a problem of excessive grinding.
  • aqueous dispersion containing particles it is preferable to add to the cross-sectional cross-sectional yarn and then to mix for 10 seconds to 3 minutes. If the mixing time is less than 10 seconds, the effect of mixing does not appear sufficiently, and if the mixing time exceeds 3 minutes, there is a problem of being excessively ground.
  • the absorbent core preferably includes a cross-sectional cross-section yarn and a super absorbent polymer in a ratio of 1: 5 to 5: 1, but is not limited thereto.
  • the absorbent article is a diaper, training pants, absorbent underpants, adult incontinence products, sanitary napkins, feminine hygiene products such as tampons and panty liners, wound care products such as bandages and other articles, etc. It may include, but is preferably a diaper.
  • the absorbent article absorbs body fluids such as blood, urine, and menstrual blood so that the user can use them hygienically and conveniently.
  • Such absorbent articles typically consist of a liquid permeable topsheet that is in direct contact with the skin of the wearer when worn, a liquid impermeable backsheet that forms an outer surface when worn, an absorbent core disposed between the topsheet and the backsheet, and an elastomer It comprises a leg flap and a fastening means as a basic component.
  • the top sheet is generally composed of soft to the touch and does not irritate the skin of the wearer, in particular the top sheet should have a physical property that can quickly pass the liquid body secretion to the absorbent core .
  • Top sheets suitable as having these properties are made and used from a wide range of materials such as porous plastic films, natural fibers, synthetic fibers or mixtures of natural and synthetic fibers.
  • Absorbent core is a means for absorbing and retaining liquid secretions. It absorbs body fluids through the liquid permeable top sheet at high speed and prevents the absorbed body fluids from contacting the skin again. Perform the function you own.
  • the size, shape (e.g., rectangular, hourglass, etc.), structure, and absorbent capacity of the absorbent core are adapted to fit the wearer from infant to adult, and the absorbent core is provided on the back sheet by known attachment means. Attached and fixed.
  • the backsheet is impermeable to the liquid so that the body secretions absorbed and absorbed by the absorbent core do not contaminate or wet products that are in direct contact with the diaper, such as the wearer's clothing or bed sheet.
  • the back sheet is preferably impermeable to liquids and permeable to gases.
  • a film having such physical properties a plastic film has been generally used, and in recent years, a material obtained by adhering a nonwoven fabric to a polyethylene film has been widely used.
  • the leg flaps are positioned adjacent each longitudinal edge to allow the diaper to be worn and secured to the wearer's leg.
  • the fastening means performs a function of wearing a disposable diaper on the body and maintaining its wearing state.
  • Fastening means are widely used fastening members such as adhesive tape tabs or hooks and loops.
  • each of the components of the diaper are adhesively fixed by hot melt adhesive, heat fusion, or other bonding method which is well known in the diaper field to form the diaper.
  • Conventional absorbent cores are prepared using fluff pulp, starch graft copolymers, cross-linked carboxymethylcellulose derivatives, modified hydrophilic acrylates, etc., made by grinding wood pulp on a fibrous web.
  • the absorbent resin has been produced by uniformly or intentionally distributing it uniformly, and then adding water to it and then compressing it in order to improve the strength (Integrity) of the absorbent core.
  • Recent diapers tend to become lighter and lighter as they are more ergonomically developed. This improves breathability due to lightness and thinness when worn, improves freshness, and prevents side effects such as itching and rashes when worn for a long time with excellent breathability. to be.
  • the absorbent article of the present invention improves fluidity and liquid mobility by manufacturing an absorbent core having a maximum porosity by replacing the cellulose fluff pulp contained in the core of the existing absorbent article with cross-shaped cross-sectional yarn fibers.
  • Superabsorbent resins used in the absorbent core of the present invention are prepared by the steps and methods commonly used in the art.
  • the 'super absorbent resin' can absorb at least about 15 times its weight, preferably at least about 25 times its weight in water.
  • the superabsorbent resin can be selected from natural, synthetic, modified natural polymers and the like.
  • the superabsorbent resin may also be an organic compound including inorganic materials such as silica gel, or natural materials such as agar, pectin, guar gum and the like, and synthetic materials such as synthetic hydrogel polymers.
  • Such hydrogel polymers include, for example, alkali metal salts of polyacrylic acid; Polyacrylamide; Polyvinyl alcohol; Ethylene maleic anhydride copolymers; Polyvinyl ethers; Hydroxypropyl cellulose; Polyvinyl morpholinone; Vinyl sulfonic acids, polyacrylates, polyacrylamides, polymers and copolymers of polyvinyl pyridine and the like.
  • Other suitable polymers include hydrolyzed acrylonitrile grafted starch, acrylic acid grafted starch and isobutylene maleic anhydride copolymers and mixtures thereof.
  • the hydrogel polymer is preferably weakly crosslinked to render the material substantially water insoluble.
  • the crosslink can be, for example, by light irradiation or by covalent bonds, ionic bonds, van der Waals bonds or hydrogen bonds.
  • Superabsorbent materials may be in any form suitable for use in absorbent structures, including particles, fibers, flakes, spheres, and the like.
  • the absorbent core preferably includes a cross-sectional cross-section yarn and a super absorbent polymer in the same weight, but is not limited thereto.
  • the absorbent article is a diaper, training pants, absorbent underpants, adult incontinence products, sanitary napkins, feminine hygiene products such as tampons and panty liners, wound care products such as bandages and other articles, etc. It may include, but is preferably a diaper.
  • the absorbent article absorbs body fluids such as blood, urine, and menstrual blood so that the user can use them hygienically and conveniently.
  • Such absorbent articles typically consist of a liquid permeable topsheet that is in direct contact with the skin of the wearer when worn, a liquid impermeable backsheet that forms an outer surface when worn, an absorbent core disposed between the topsheet and the backsheet, and an elastomer It comprises a leg flap and a fastening means as a basic component.
  • the top sheet is generally composed of soft to the touch and does not irritate the skin of the wearer, in particular the top sheet should have a physical property that can quickly pass the liquid body secretion to the absorbent core .
  • Top sheets suitable as having these properties are made and used from a wide range of materials such as porous plastic films, natural fibers, synthetic fibers or mixtures of natural and synthetic fibers.
  • Absorbent core is a means for absorbing and retaining liquid secretions. It absorbs body fluids through the liquid permeable top sheet at high speed and prevents the absorbed body fluids from contacting the skin again. Perform the function you own.
  • the size, shape (e.g., rectangular, hourglass, etc.), structure, and absorbent capacity of the absorbent core are adapted to fit the wearer from infant to adult, and the absorbent core is provided on the back sheet by known attachment means. Attached and fixed.
  • the backsheet is impermeable to the liquid so that the body secretions absorbed and absorbed by the absorbent core do not contaminate or wet products that are in direct contact with the diaper, such as the wearer's clothing or bed sheet.
  • the back sheet is preferably impermeable to liquids and permeable to gases.
  • a film having such physical properties a plastic film has been generally used, and recently, a material in which a nonwoven fabric is bonded to a polyethylene film has been widely used.
  • the leg flaps are positioned adjacent each longitudinal edge to allow the diaper to be worn and secured to the wearer's leg.
  • the fastening means performs a function of wearing a disposable diaper on the body and maintaining its wearing state.
  • Fastening means are widely used fastening members such as adhesive tape tabs or hooks and loops.
  • each of the components of the diaper are adhesively fixed by hot melt adhesive, heat fusion, or other bonding method which is well known in the diaper field to form the diaper.
  • Conventional absorbent cores are prepared using fluff pulp, starch graft copolymers, cross-linked carboxymethylcellulose derivatives, modified hydrophilic acrylates, etc., made by grinding wood pulp on a fibrous web.
  • the absorbent resin has been produced by uniformly or intentionally distributing it uniformly, and then adding water to it and then compressing it in order to improve the strength (Integrity) of the absorbent core.
  • Recent diapers tend to become lighter and lighter as they are more ergonomically developed. This improves breathability due to lightness and thinness when worn, improves freshness, and prevents side effects such as itching and rashes when worn for a long time with excellent breathability. to be.
  • the absorbent article of the present invention improves fluidity and liquid mobility by manufacturing an absorbent core having a maximum porosity by replacing the cellulose fluff pulp contained in the core of the existing absorbent article with cross-shaped cross-sectional yarn fibers.
  • Superabsorbent resins used in the absorbent core of the present invention are prepared by the steps and methods commonly used in the art.
  • aqueous dispersion containing 10% by weight of silica airgel (AeroZel TM, JIOS G) in the four cross-modified cross-section made of a polyethylene terephthalate (( ⁇ ) Huvis COOLERVER TM) in 1% by weight, in the Ploughshare mixer (JS tech)
  • JS tech Ploughshare mixer
  • Absorbent core was evenly sprayed with a superabsorbent polymer on the cross-sectional cross-section yarn and repeatedly deposited four times using a core evaporator, and manufactured by pressing with a roll mill.
  • the ratio of cross-shaped cross-section yarn to superabsorbent resin is 55% by weight to 45% by weight.
  • the manufacturing process is shown in FIG. 8.
  • An absorbent core was prepared in the same manner as in Example 1 except that cellulose pulp was used instead of the cross-sectional cross-section yarns.
  • An absorbent core was prepared in the same manner as in Example 1, except that the aqueous dispersion including the silica airgel (AeroZel TM , JIOS Co., Ltd.) of Example 1 was not mixed.

Abstract

La présente invention concerne un noyau absorbant d'un article absorbant comprenant : une feuille supérieure perméable aux liquides ; une couche de distribution absorbante disposée sur la partie inférieure de la feuille supérieure ; un noyau absorbant, disposé sur la couche de distribution absorbante, pour absorber et retenir un liquide ; et une feuille de support imperméable aux liquides disposée sur la partie inférieure du noyau absorbant, où le noyau absorbant comprend une résine absorbant fortement l'eau et des fils croisés en section transversale modifiés préparés par mélangeage de polyéthylène téréphtalate (PET) avec une dispersion aqueuse contenant des particules présentant les propriétés suivantes : i) surface spécifique BET de 300 à 1500 m2/g et ii) porosité de 50 % ou plus. Par rapport à un noyau absorbant classique, le noyau absorbant de la présente invention présente pour effets un stockage pratique, une activité lorsqu'il est porté, et une perméabilité supérieure aux liquides.
PCT/KR2016/005988 2015-06-09 2016-06-07 Procédé de fabrication d'un noyau absorbant présentant une résistance supérieure à l'état humide WO2016200112A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16807752.7A EP3170483B1 (fr) 2015-06-09 2016-06-07 Procédé de fabrication d'un noyau absorbant présentant une résistance supérieure à l'état humide
CN201680002359.XA CN106659615B (zh) 2015-06-09 2016-06-07 用于制造具有增强的湿强度的吸收芯体的方法
US15/504,158 US20170273836A1 (en) 2015-06-09 2016-06-07 Method for manufacturing absorbent core having enhanced wet strength

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2015-0081162 2015-06-09
KR20150081162 2015-06-09
KR1020160044888A KR101749723B1 (ko) 2015-06-09 2016-04-12 습윤 강도가 강화된 흡수 코어의 제조 방법
KR10-2016-0044888 2016-04-12

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WO2016200112A1 true WO2016200112A1 (fr) 2016-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114746057A (zh) * 2019-11-26 2022-07-12 尤妮佳股份有限公司 吸收性物品

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US6521339B1 (en) * 1992-08-17 2003-02-18 Weyerhaeuser Company Diol treated particles combined with fibers
JP2008266812A (ja) * 2007-04-17 2008-11-06 Negoro Sangyo Co 機能性異型再生ポリエチレンテレフタレート繊維およびその製造方法
JP4320311B2 (ja) * 2005-04-28 2009-08-26 大王製紙株式会社 吸収性物品
KR101507287B1 (ko) * 2013-12-03 2015-03-30 주식회사 엘지화학 고흡수성 수지의 제조방법

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Publication number Priority date Publication date Assignee Title
US6521339B1 (en) * 1992-08-17 2003-02-18 Weyerhaeuser Company Diol treated particles combined with fibers
KR20020085827A (ko) * 2001-05-07 2002-11-16 유니챰 가부시키가이샤 체액 흡수성 물품
JP4320311B2 (ja) * 2005-04-28 2009-08-26 大王製紙株式会社 吸収性物品
JP2008266812A (ja) * 2007-04-17 2008-11-06 Negoro Sangyo Co 機能性異型再生ポリエチレンテレフタレート繊維およびその製造方法
KR101507287B1 (ko) * 2013-12-03 2015-03-30 주식회사 엘지화학 고흡수성 수지의 제조방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114746057A (zh) * 2019-11-26 2022-07-12 尤妮佳股份有限公司 吸收性物品
CN114746057B (zh) * 2019-11-26 2024-02-06 尤妮佳股份有限公司 吸收性物品

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