WO2017183276A1 - Article absorbant hygiénique - Google Patents

Article absorbant hygiénique Download PDF

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Publication number
WO2017183276A1
WO2017183276A1 PCT/JP2017/006244 JP2017006244W WO2017183276A1 WO 2017183276 A1 WO2017183276 A1 WO 2017183276A1 JP 2017006244 W JP2017006244 W JP 2017006244W WO 2017183276 A1 WO2017183276 A1 WO 2017183276A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
absorbent article
ppm
sanitary
cover 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.)
Ceased
Application number
PCT/JP2017/006244
Other languages
English (en)
Japanese (ja)
Inventor
清輝 土久岡
佑輔 赤木
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co Ltd
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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Publication of WO2017183276A1 publication Critical patent/WO2017183276A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria

Definitions

  • the present invention relates to a hygiene absorbent article that dramatically improves the ability to decompose and remove odor-causing substances by using a fiber having an air catalyst attached thereto and a crosslinked acrylate-based moisture-absorbing / releasing fiber.
  • Patent Document 1 proposes a photocatalyst-containing fiber that is formed from a polymer having a crosslinked structure and a carboxyl group and contains metal oxide fine particles having photocatalytic activity.
  • metal oxide fine particles have a function of adsorbing malodorous substances, allergens, fungi, viruses, etc. to carboxyl groups and decomposing with photocatalysts, but sufficient light irradiation is necessary to exert their functions.
  • Patent Document 2 proposes a fiber structure in which an air catalyst that generates hydroxyl radicals, ozone, or peroxide without light irradiation is fixed. Air catalysts are excellent in decomposing and removing substances, but in order to perform their functions effectively, a sufficient amount of water vapor needs to be continuously present in the surroundings. There was a problem that there was a substance that was insufficiently removed.
  • Patent Document 3 proposes a deodorant, an antibacterial agent, or an antifungal agent comprising a metal composition containing iron, aluminum and potassium, and an aqueous composition containing water. Since this water-based composition evaporates moisture when it adheres to an object, there is a limit to the continuous performance of the function, and there is a problem that there is a substance that is insufficiently decomposed and removed only by an air catalyst. .
  • Patent Document 4 has not proposed a method for specifically realizing the function of these substance decomposition and removal agents in a hygiene absorbent article.
  • the present invention was devised in order to further advance the technique of Patent Document 4 described above, and its purpose is to provide a hygiene absorbent article having the ability to effectively and continuously decompose and remove a wide variety of odor-causing substances. It is to provide.
  • the present inventor has found that air in a sanitary absorbent article is combined with a crosslinked acrylate-based moisture-absorbing / desorbing fiber by using a fiber having an air catalyst attached thereto and a crosslinked acrylate-based moisture-absorbing / desorbing fiber.
  • the water vapor concentration around the catalyst is continuously increased, so that a large amount of OH radicals are generated from the air catalyst to maximize the substance decomposition and removal ability of the air catalyst, and this also has a cross-linked acrylate moisture absorption / release property. It has been found that the ability to decompose and remove a wide variety of odor-causing substances is synergistically increased with the addition of the substance adsorption ability of the fiber, and the present invention has been completed.
  • the present invention has the following configurations (1) to (4).
  • a sanitary absorbent article selected from diapers, incontinence guards, sanitary napkins, panty liners, and similar articles, wherein the sanitary absorbent article comprises a liquid-permeable cover layer, a liquid-impermeable cover layer, and the aforementioned An absorbent structure surrounded between both cover layers, wherein the liquid permeable cover layer and / or the absorbent structure is made of a metal composition containing iron, aluminum, potassium, and titanium, and the metal composition From the fiber having a metal content ratio of 100 to 500 ppm of iron, 100 to 500 ppm of aluminum, 0.5 to 50 ppm of potassium, and 0.1 to 50 ppm of titanium attached to the fiber surface, and a crosslinked acrylate-based moisture absorbing / releasing fiber
  • a sanitary absorbent article comprising a material-decomposing and removing fiber.
  • the hygroscopic absorbent article of the present invention continuously increases the water vapor concentration around the air catalyst due to the presence of the cross-linked acrylate-based moisture-absorbing / releasing fibers, the organic catalyst and inorganic substances (excluding metals) are decomposed by the air catalyst.
  • the ability to fully exhibit removal ability and the effect of adsorption of substances by cross-linked acrylate-based moisture-absorbing and releasing fibers also exist, so the ability to decompose and remove a wide variety of organic and inorganic substances (excluding metals) is extremely good. ing. Therefore, the sanitary absorbent article of the present invention can effectively decompose and remove odor-causing substances derived from human or animal body fluids.
  • the sanitary absorbent article of the present invention is selected from diapers, incontinence guards, sanitary napkins, panty liners, and the like, and a fiber having an air catalyst made of a specific metal composition attached to the fiber surface; It is characterized by comprising a material-decomposing and removing fiber composed of a crosslinked acrylate-based moisture-absorbing and releasing fiber.
  • the air catalyst attached to the fiber in the material decomposition removal fiber of the present invention generates a hydroperoxyl radical and a superoxide ion by reacting with moisture in the air by a catalytic effect without using chemicals, and is a harmful substance. It exhibits excellent effects such as antibacterial and deodorizing.
  • the air catalyst is composed of a metal composition containing iron, aluminum, potassium, and titanium.
  • iron, aluminum, and potassium extracted from soil with inorganic acid or sulfuric acid are converted from titanium tetrahydroxide hydrochloride. It can be manufactured by blending titanium.
  • the air catalyst itself, including its mechanism of action, has been widely known so far, and can be obtained from commercial products.
  • ⁇ ⁇ ⁇ ⁇ Potassium in the air catalyst is an energy source for the effect of the air catalyst to decompose and remove substances. Electron beams emitted from potassium collide with surrounding water molecules, and hydrated electrons, atomic hydrogen, hydrogen gas, hydroxyl radicals, and hydrogen peroxide are generated. Hydrated electrons and atomic hydrogen are oxidized to produce hydroperoxyl radicals and superoxide ions, which together with atomic hydrogen produce hydrogen peroxide. Hydrogen peroxide is reduced by iron to generate hydroxy radicals and hydroxide ions (Fenton reaction). Hydrogen peroxide is oxidized by iron to produce hydroperoxyl radicals and hydrogen ions. Hydroxy radicals and superoxide ions have a strong oxidizing power, thereby decomposing / removing substances and inhibiting the growth of microorganisms.
  • iron promotes the formation reaction of hydroxy radicals and hydroxide ions (Fenton reaction), and the formation reaction of hydroperoxyl radicals and hydrogen ions.
  • Aluminum functions as a binding material for fixing and fixing to an object or a carrier. Titanium has a role of further enhancing the substance decomposition / removal effect by aluminum, iron, and potassium.
  • the contents of aluminum, potassium, and titanium are preferably 100 to 500 ppm, 0.5 to 50 ppm, and 0.1 to 50 ppm, respectively, with respect to 100 ppm of iron. More preferably, the ratio is 100 to 300 ppm, 1 to 10 ppm, and 0.1 to 5 ppm, respectively, with respect to 100 ppm of iron.
  • the iron content in the metal composition is preferably 10 to 100 ppm
  • the aluminum content is 10 to 100 ppm
  • the potassium content is 0.1 to 10 ppm
  • the titanium content is preferably 0.01 to 1 ppm.
  • the fiber to which the air catalyst is attached to the surface has a fiber length of 30 to 70 mm and a single yarn fineness of 0.4 to 2.0 dtex.
  • a polyester fiber and / or an acrylic fiber As a method for attaching the air catalyst to the fiber, a conventionally known method can be appropriately employed. For example, the air catalyst component is sprayed on the surface of the fiber and dried, or the air catalyst component is dissolved. The method of immersing the fiber in the prepared solution and drying is mentioned.
  • a conventionally known fiber comprising a crosslinked structure and an acrylate-based polymer having a carboxyl group of 0.1 to 10 mmol / g can be used. It is.
  • a fiber for example, as described in JP-A No. 2000-314082, an increase in nitrogen content introduced by a crosslinking treatment with a hydrazine-based compound with respect to an acrylic fiber having an acrylonitrile content of 85 to 95% by weight.
  • cross-linked acrylate fibers include H-type carboxyl group-type fibers that have not been converted into salt type other than those converted into salt-type carboxyl groups such as Na salt, Mg salt, and Ca salt as described above. Either type can be used.
  • the cross-linked acrylate fiber preferably has a fiber length of 30 to 60 mm and a single yarn fineness of 1.5 to 11.0 dtex.
  • the material decomposition removal fiber of the present invention is obtained by using a cotton blender or the like at a mass ratio of 5:95 to 50:50 of the fiber having the air catalyst attached to the fiber surface and the crosslinked acrylate-based hygroscopic fiber. It is preferable to use the mixture uniformly.
  • the sanitary absorbent article of the present invention preferably contains the above-mentioned material decomposition removal fiber in an amount of 0.1% by mass or more, 0.5% by mass or more, and 1.0% by mass or more.
  • the upper limit of the content is not particularly limited, but is about 20% by weight from the viewpoint of maintaining the function of the sanitary absorbent article.
  • the content of the metal composition of the air catalyst in the material decomposition removal fiber of the present invention is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, further preferably 0.05% by mass or more, although an upper limit is not specifically limited, From an economical viewpoint, it is 20 mass%.
  • the content of the crosslinked acrylate-based moisture-absorbing / releasing fiber in the material-decomposing and removing fiber of the present invention is 50% by mass or more, preferably 60% by mass or more, and the upper limit is not particularly limited. %.
  • the material decomposition removal fiber of the present invention is preferably used by mixing with a heat-bonding fiber when it is contained in a hygiene absorbent article.
  • a heat-bonding fiber By heating the material decomposition removal fiber of the present invention together with the thermal bonding fiber, the material decomposition removal fiber can be uniformly dispersed and fixed in the hygiene absorbent article. Moreover, it can also contribute to the form retainability of the hygiene absorbent article.
  • a conventionally known fiber may be used.
  • a fiber having a core-sheath structure including a low melting point component in the sheath part is preferable.
  • a core-sheath fiber using a polyethylene terephthalate having a high melting point as the core component and a polyethylene having a low melting point as the sheath component can be used.
  • the sanitary absorbent article of the present invention includes a liquid-permeable cover layer, a liquid-impermeable cover layer, and an absorbent structure surrounded between the two cover layers, in the same manner as conventionally known ones.
  • the liquid is intended for human and animal body fluids such as urine, blood, and feces.
  • the liquid permeable cover layer is a layer that first receives the released body fluid into the absorbent article, and conventionally known liquid permeable materials such as spunbond nonwoven materials are used.
  • a conventionally known liquid-impermeable material such as a polyethylene film is used.
  • the absorbent structure is disposed between the liquid-permeable cover layer and the liquid-impermeable cover layer described above, and after acquiring the body fluid, it is distributed and stored throughout the structure.
  • Conventionally known materials such as superabsorbent materials, natural materials (such as cellulose fibers), and synthetic fibers that can absorb double weight of liquid are used.
  • the sanitary absorbent article of the present invention is characterized in that the above-mentioned material decomposition removal fiber is contained in the above-mentioned liquid-permeable cover layer or the absorbent structure or both.
  • the above-mentioned material decomposition removal fiber is contained in the above-mentioned part of the sanitary absorbent article, it is possible to effectively reduce odors derived from human and animal body fluids.
  • bonding by mechanical needling, air-through bonding, bonding by water injection, or the like can be employed as a method for incorporating the material decomposition removal fiber into the sanitary absorbent article according to the present invention.
  • the hygiene absorbent article of the present invention can be developed for various uses, but due to its material decomposition removal performance, it is particularly advantageously used in diapers, incontinence guards, sanitary napkins, or panty liners from which humans or animals release body fluids. Can be done.
  • the sanitary absorbent article of the present invention can continuously decompose and remove a wide range of organic and inorganic substances (excluding metals) such as ammonia, hydrogen sulfide, indole, nitric oxide and nitrogen dioxide. It also has an antibacterial function that suppresses the growth of bacteria, viruses, and molds.
  • Example 1 Preparation of Fiber A with Air Catalyst Adhered to Fiber Surface
  • a commercially available “TiOTiO” (manufactured by Sunward Shokai Co., Ltd.) was prepared as an air catalyst.
  • the metal composition of this “TiOTiO” was analyzed, it was iron 17 ppm, aluminum 24 ppm, potassium 0.22 ppm, titanium 0.08 ppm, and the content ratio of aluminum 141 ppm, potassium 1.29 ppm, titanium 0.47 ppm with respect to iron 100 ppm. Met.
  • the opened polyester fiber having a fiber length of 38 mm and a single yarn fineness of 1.45 dtex was placed on a belt conveyor and applied by spraying so that the amount of air catalyst adhered was 2.0% by mass.
  • the applied polyester was dried at 120 ° C. for 3 minutes to obtain fiber A having an air catalyst attached to the fiber surface.
  • thermal bonding fiber C As the thermal bonding fiber C, a core-sheath fiber using polyethylene terephthalate as the core component and polyethylene as the sheath component was used.
  • the fiber C had a fiber length of 44 mm and a single yarn fineness of 2.2 dtex.
  • liquid-permeable cover layer thus obtained and the above-described liquid-impermeable cover layer and absorbent structure, 150 mm in length and 50 mm in width so that an absorbent structure exists between both cover layers.
  • the ratio of the material decomposition removal fiber in a sanitary napkin was 1 mass%.
  • Example 2 Implementation was carried out except that an air catalyst made of a metal composition derived from soil prepared according to the method described in Production Example 1 (metal composition production) of JP-A No. 2007-215988 was used as the air catalyst.
  • a sanitary napkin was prepared in the same manner as in Example 1.
  • iron, aluminum, potassium, and titanium are 23 ppm, 33 ppm, 0.81 ppm, and 0.07 ppm, respectively.
  • the content was 143 ppm of aluminum, 3.52 ppm of potassium, and 0.30 ppm of titanium with respect to 100 ppm of iron.
  • Example 3 A sanitary napkin was prepared in the same manner as in Example 1 except that “BEL OASIS” (manufactured by Teijin Limited) was used as the crosslinked acrylate-based moisture-absorbing / releasing fiber B.
  • the fiber length of this fiber B was 51 mm, and the single yarn fineness was 9.9 dtex.
  • Examples 4 and 5 A sanitary napkin was prepared in the same manner as in Example 1 except that the composition ratios of fiber A and fiber B shown in Table 1 were changed.
  • Example 6 Example 1 except that an absorbent structure was obtained by entanglement of the above-described fiber assembly using a 150 ° C. air-through bonding method with cellulose fluff pulp mixed with superabsorbent particles constituting the absorbent structure. Similarly, a sanitary napkin in the form of a rectangular sheet having a length of 150 mm, a width of 50 mm, a thickness of 3.0 mm, and a weight of 40 g was prepared. In addition, the ratio of the material decomposition removal fiber in a sanitary napkin was 2 mass%.
  • Comparative Example 1 A sanitary napkin was prepared in the same manner as in Example 1 except that all the components of the fiber A with the air catalyst attached to the fiber surface were changed to the crosslinked acrylate-based moisture-absorbing / releasing fiber B.
  • Comparative Example 2 A sanitary napkin was prepared in the same manner as in Example 1 except that all the components of the crosslinked acrylate-based moisture-absorbing / releasing fiber B were changed to the fiber A with an air catalyst attached to the fiber surface.
  • each sample was prepared, and these samples were conditioned at 20 ° C. ⁇ 65% RH for 24 hours, and then sealed in a 5-liter sampling bag. 3 liters of 20 ° C. ⁇ 65% RH air and a predetermined substance (ammonia, hydrogen sulfide) having a predetermined initial concentration are added to a tedra bag containing the sample, and the conditions are 20 ° C. ⁇ 65% RH. The concentration (mass%) of the additive substance after 2 hours was measured with a detector tube, and the odor reduction rate (%) was calculated. The results are shown in Table 1.
  • each of the sanitary napkins of Examples 1 to 6 including the material-decomposing and removing fiber in which the air catalyst and the cross-linked acrylate-based moisture-absorbing and absorbing fiber are used in combination has high deodorizing properties against ammonia and hydrogen sulfide.
  • the effect (substance decomposition / removal effect) was shown.
  • the sanitary napkins of Comparative Example 1 using only crosslinked acrylate-based moisture-absorbing / desorbing fibers and Comparative Example 2 using only an air catalyst have a deodorizing effect (substance decomposition / removal) that is clearly inferior to Examples 1-6. Effect).
  • the sanitary absorbent article of the present invention has the ability to continuously decompose and remove a wide variety of substances, diapers, incontinence guards, sanitary napkins, panty liners, and the like from which human and animal body fluids are released It is extremely useful as a similar article.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Inorganic Chemistry (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Catalysts (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un article absorbant hygiénique apte à décomposer et éliminer efficacement et en continu une grande variété de substances à l'origine d'odeurs. L'article absorbant hygiénique, choisi parmi une couche, une protection contre l'incontinence, une serviette hygiénique, un protège-slip et d'autres articles similaires, comprend une couche de couverture perméable aux liquides, une couche de couverture imperméable aux liquides, et une structure absorbante enfermée entre les couches de couverture, la couche de couverture perméable aux liquides et/ou la structure absorbante comprenant une fibre de décomposition et d'élimination de substance comprenant une fibre ayant un catalyseur à air fixé à une surface de fibre de cette dernière, et une fibre d'absorption/libération d'humidité à base d'acrylate réticulé, le catalyseur à air comprenant une composition métallique contenant du fer, de l'aluminium, du potassium et du titane, où les rapports de teneur en métal dans la composition métallique sont, par rapport à 100 ppm de fer : 100 à 500 ppm d'aluminium ; 0,5 à 50 ppm de potassium ; et 0,1 à 50 ppm de titane.
PCT/JP2017/006244 2016-04-22 2017-02-21 Article absorbant hygiénique Ceased WO2017183276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-086383 2016-04-22
JP2016086383A JP6118440B1 (ja) 2016-04-22 2016-04-22 衛生吸収物品

Publications (1)

Publication Number Publication Date
WO2017183276A1 true WO2017183276A1 (fr) 2017-10-26

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PCT/JP2017/006244 Ceased WO2017183276A1 (fr) 2016-04-22 2017-02-21 Article absorbant hygiénique

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JP (1) JP6118440B1 (fr)
WO (1) WO2017183276A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005006827A (ja) * 2003-06-18 2005-01-13 Arkhe Kikaku:Kk おむつ
JP2005015995A (ja) * 2003-06-06 2005-01-20 Mitsubishi Chemicals Corp 吸収性物品の製造方法
WO2006027910A1 (fr) * 2004-09-07 2006-03-16 Japan Exlan Company Limited Fibre acrylique réticulée absorbant et relarguant lentement l'humidité
JP2008023247A (ja) * 2006-07-25 2008-02-07 Arkhe Will Co Ltd 男性用失禁パッド

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005015995A (ja) * 2003-06-06 2005-01-20 Mitsubishi Chemicals Corp 吸収性物品の製造方法
JP2005006827A (ja) * 2003-06-18 2005-01-13 Arkhe Kikaku:Kk おむつ
WO2006027910A1 (fr) * 2004-09-07 2006-03-16 Japan Exlan Company Limited Fibre acrylique réticulée absorbant et relarguant lentement l'humidité
JP2008023247A (ja) * 2006-07-25 2008-02-07 Arkhe Will Co Ltd 男性用失禁パッド

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Publication number Publication date
JP6118440B1 (ja) 2017-04-19
JP2017192658A (ja) 2017-10-26

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