WO2020100590A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2020100590A1
WO2020100590A1 PCT/JP2019/042551 JP2019042551W WO2020100590A1 WO 2020100590 A1 WO2020100590 A1 WO 2020100590A1 JP 2019042551 W JP2019042551 W JP 2019042551W WO 2020100590 A1 WO2020100590 A1 WO 2020100590A1
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WO
WIPO (PCT)
Prior art keywords
sheet
layer sheet
absorbent article
article according
inner layer
Prior art date
Application number
PCT/JP2019/042551
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English (en)
French (fr)
Japanese (ja)
Inventor
京子 石橋
優子 福田
Original Assignee
花王株式会社
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.)
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Application filed by 花王株式会社 filed Critical 花王株式会社
Priority to CN201980068357.4A priority Critical patent/CN112867471B/zh
Priority to RU2021108144A priority patent/RU2768537C1/ru
Publication of WO2020100590A1 publication Critical patent/WO2020100590A1/ja

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    • 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
    • A61F13/45—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 shape
    • A61F13/49—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 shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • 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 of the pads

Definitions

  • the present invention relates to absorbent articles.
  • An absorbent article typified by a disposable diaper includes an absorbent body that absorbs excrement and an exterior body that holds the absorbent body at a predetermined position of the wearer.
  • the exterior body In order to prevent leakage of excrement and reduce stickiness and eczema caused by sweat, the exterior body has a moisture absorbent sheet placed on the skin side of the wearer or a non-layered sheet that is different from the inner layer sheet placed on the wearer's skin side. In many cases, the moisture absorbent sheet is sandwiched between outer layer sheets arranged on the skin side (Patent Document 1).
  • the conventional exterior body prevents the moisture absorbent sheet from directly touching the skin by interposing the inner layer sheet between the wearer's skin and the moisture absorbent sheet.
  • the inner layer sheet, the moisture absorption sheet and the outer layer sheet stick to the wearer's skin.
  • the hygroscopicity is not sufficiently exhibited, and problems such as stickiness remain.
  • an object of the present invention is to provide an absorbent article that reduces stuffiness in a diaper due to sweating or the like and does not give a sticky feeling to the wearer's skin.
  • the present invention is an absorbent article comprising an absorber and an exterior body holding the absorber, wherein the exterior body is an inner layer sheet arranged on the skin side of the wearer, and the non-skin side.
  • An outer layer sheet disposed in, and a moisture absorbent sheet provided between the inner layer sheet and the outer layer sheet, wherein the inner layer sheet and the outer layer sheet are thermoplastic fiber sheets or thermoplastic fiber composite sheets.
  • the moisture absorbent sheet contains cellulose fibers, the fiber orientation of the moisture absorbent sheet is arranged in a direction different from the direction orthogonal to the fiber orientation of the inner layer sheet, and a part of the moisture absorbent sheet is the inner layer sheet.
  • an absorbent article having a joint portion joined to at least one of the outer layer sheet.
  • the absorbent article of the present invention can form a space at least between the inner layer sheet and the moisture absorbent sheet when absorbing moisture, it is possible to reduce stuffiness in the diaper due to sweating or the like, and reduce the sticky feeling on the skin of the wearer.
  • An absorbent article can be provided.
  • FIG. 2 is a schematic cross-sectional view of the exterior body 13 taken along the line AA ′ in FIG. 1, where (a) shows a state before moisture absorption and (b) shows a state after moisture absorption.
  • FIG. 6 is a development view of the outer package 13. It is a figure showing pants type disposable diaper 2, (a) is a perspective view and (b) is a deployment top view seen from the skin side.
  • It is a cross-sectional schematic diagram of the other example of an exterior body (a) shows the state before moisture absorption, (b) shows the state after moisture absorption.
  • a part of the moisture absorbent sheet is joined to the inner layer sheet or the outer layer sheet at least at one or more places, and the moisture absorbent sheet is swollen in a direction different from the stretchable direction of the inner layer sheet and the outer layer sheet during moisture absorption. It has been found that a space is formed at least between the inner layer sheet and the moisture absorption sheet, and the formed space can reduce the sticky feeling on the skin of the wearer.
  • the tape-type disposable diaper 1 includes an absorber 12 that absorbs excrement of the wearer and an exterior body 13 that holds the absorber 12 at a predetermined position of the wearer.
  • absorbent articles include pants-type disposable diapers, split-type disposable diapers, and disposable sanitary shorts as shown in FIG. 4.
  • the exterior body 13 includes a skin side inner layer sheet 131, a non-skin side or outer side outer layer sheet 132, and a moisture absorption sheet 133 provided between the inner layer sheet 131 and the outer layer sheet 132.
  • the moisture absorbent sheet 133 is joined to the inner layer sheet 131 via the joint portions 134a to 134c and the outer layer sheet 132 via the joint portions 134d and e.
  • the moisture absorption sheet 133 may be provided in at least a part of the exterior body 13, and may be any part such as the back side portion 13a, the abdominal side portion 13b, the back side waistline portion 13c, and the abdominal side waistline portion 13d. From the viewpoint of efficiently removing sweat, it is preferably provided at least in the back waistline portion 13c.
  • the moisture absorption sheet 133 is arranged so that the fiber orientations of the inner layer sheet 131 and the outer layer sheet 132 are the same direction.
  • the moisture absorbent sheet 133 is made of cellulosic fibers and has a property that wrinkles tend to be formed in the direction orthogonal to the direction of the fibers when absorbing moisture, and thus the moisture absorbent sheet 133 easily swells in the direction of the fibers.
  • the inner layer sheet 131 and the outer layer sheet 132 are made of a nonwoven fabric of a thermoplastic resin as described later, and are unlikely to stretch in the fiber direction.
  • the moisture absorbing sheet 133 absorbs sweat
  • the moisture absorbing sheet 133 in the non-joint portion between the two joining portions 134 swells as shown in FIG. 2B, and the inner layer sheet 131 and the outer layer sheet 132. It becomes a drape shape apart from and forms a space. In this way, the moisture absorbing sheet 133 that has absorbed sweat is separated from the inner layer sheet 131 and the outer layer sheet 132, so that stickiness to the wearer's skin is prevented.
  • the fiber orientation of the inner layer sheet 131 and the outer layer sheet 132 and the fiber orientation of the moisture absorption sheet 133 are arranged in the same direction.
  • the inner layer sheet 131 may be arranged in a direction different from the direction orthogonal to the fiber orientation. That is, as shown in FIG. 3A, the fiber orientation X of the moisture absorbent sheet 133 is arranged so as to intersect at 90 ° with respect to the direction Y orthogonal to the fiber orientation of the inner layer sheet 131 (the inner layer sheet 131 and the outer layer sheet 132.
  • the fiber orientation of (1) and the fiber orientation of the moisture absorption sheet 133 are the same), but as shown in FIG. 3B, the fiber orientation X of the moisture absorption sheet 133 is orthogonal to the fiber orientation of the inner layer sheet 131. They may be arranged so as to intersect with the direction Y at 30 ° or more, more preferably 45 ° or more.
  • the moisture absorption sheet 133 may be joined to the outer layer sheet 132 at at least one point.
  • the joints 134d and 134e between the outer layer sheet 132 and the moisture absorbent sheet 133 are preferably provided at positions facing the joints 134a and 134c with the inner layer sheet 131 via the moisture absorbent sheet 133, but not necessarily required. Absent.
  • the term “provided at the opposite position” includes not only the case where they are completely opposed to each other but also the case that 80% or more of the joints 134a and 134c are opposed to the joints 134d and 134e.
  • the joints 134a to 134e may have discontinuous shapes.
  • the shape of the joint portion is a dot shape or a linear shape extending for a predetermined distance in the direction orthogonal to the fiber orientation of the moisture absorption sheet 133, and it is preferable that the bonding portions are arranged in a pattern with a constant interval. .. Further, when the joining portions 134a to 134e are dot-shaped, it is preferable that the joining portions 134a to 134e are arranged in the fiber orientation direction of the moisture absorbent sheet 133.
  • the joining portions 134a to 134e have a linear shape provided in a direction orthogonal to the fiber orientation of the moisture absorption sheet 133.
  • the pitch of the linear joints is preferably 2 mm or more and 20 mm or less, more preferably 3 mm or more and 15 mm or less, and most preferably 5 mm or more and 12 mm or less. That is, the lower limit of the pitch of the linear joints is preferably 2 mm, more preferably 3 mm, and most preferably 5 mm.
  • the upper limit of the pitch of the joints is preferably 20 mm, more preferably 15 mm, and most preferably 12 mm.
  • the width of the linear joints 134a to 134e is preferably 0.1 mm or more and 5 mm or less, more preferably 0.3 mm or more and 4 mm or less, and most preferably 0.5 mm or more and 3 mm or less. That is, the lower limit value is preferably 0.1 mm, more preferably 0.3 mm, and most preferably 0.5 mm.
  • the upper limit of the width of the joint portion is preferably 5 mm, more preferably 4 mm, and most preferably 3 mm.
  • the distance between two adjacent joints is preferably 0.5 mm or more and 18 mm or less, more preferably 1 mm or more and 16 mm or less, and most preferably 2 mm or more and 14 mm or less.
  • the lower limit value of the distance between two adjacent joints is preferably 0.5 mm, more preferably 1 mm, and most preferably 2 mm.
  • the upper limit of the distance between two adjacent joints is preferably 18 mm, more preferably 16 mm, most preferably 14 mm.
  • Intervals and sizes of the joints 134a to 134e are preferably appropriately determined according to the thickness of the inner layer sheet 131 and the moisture absorbent sheet 133, the elongation rate due to moisture absorption, and the like.
  • the joining may be any of thermal joining such as heat sealing, mechanical joining such as suturing, chemical joining with an adhesive, ultrasonic joining, or a combination thereof, and joining with an adhesive is preferable.
  • the adhesive include water-soluble adhesives, solvent-based adhesives, hot melt adhesives, epoxy adhesives, silicone adhesives, urethane adhesives, and the like, and of these, hot melt adhesives are preferable.
  • the hot melt adhesive is not limited to a particular one, and known adhesives such as EVA (ethylene vinyl acetate copolymer), PO (polyolefin), PA (polyamide), SR (synthetic rubber) , ACR (acrylic) -based, PUR (polyurethane, moisture-curable), or a mixture of two or more thereof can be used.
  • EVA ethylene vinyl acetate copolymer
  • PO polyolefin
  • PA polyamide
  • SR synthetic rubber
  • ACR acrylic
  • PUR polyurethane, moisture-curable
  • a styrene-butadiene-based hot melt adhesive is preferably used.
  • the inner layer sheet 131 and the outer layer sheet 132 are made of a thermoplastic fiber sheet or a stretch sheet.
  • the thermoplastic fiber include polyethylene fiber, polypropylene fiber, polyethylene / polypropylene composite fiber, polyethylene terephthalate fiber, polybutylene terephthalate fiber, and polyamide fiber.
  • a combination of polybutylene terephthalate fibers and the like is preferable.
  • thermoplastic fiber sheet examples include spunbond nonwoven fabric, thermal bond nonwoven fabric, air-through nonwoven fabric, and spunlace nonwoven fabric of the above fibers, and among these, spunbond nonwoven fabric and air-through nonwoven fabric are preferable. Further, these may be stretched, waterproofed or the like.
  • the elastic sheet is, for example, a composite sheet of one or more thermoplastic fiber sheets and another material.
  • Another preferable material is an elastic material, and a plurality of elastic filaments arranged in one direction, for example, as described in JP 2008-179128 A, are substantially in an unstretched state over their entire length,
  • An example is a sheet having excellent stretchability, which is formed by joining two stretchable nonwoven fabrics.
  • the non-woven fabric may be the above-mentioned non-woven fabric of thermoplastic fibers.
  • the elastic filament is made of a thread-like thermoplastic elastomer or rubber, and examples thereof include SEBS (styrene-ethylene-butadiene-styrene), SEPS (styrene-ethylene-propylene-styrene), natural rubber, and synthetic rubber.
  • SEBS styrene-ethylene-butadiene-styrene
  • SEPS styrene-ethylene-propylene-styrene
  • natural rubber and synthetic rubber.
  • the hydrophilicity of the inner layer sheet 131 is preferably higher than that of the outer layer sheet 132 and lower than that of the moisture absorbing sheet 133 so that the wearer's sweat can easily pass through and the excrement does not easily leak to the outside.
  • the outer layer sheet 132 is hydrophobic.
  • the hydrophilicity of the inner layer sheet 131 and the outer layer sheet 132 can be adjusted by applying a hydrophilizing agent to the non-woven fabric formed of the thermoplastic fibers.
  • the hydrophilizing agent is not particularly limited as long as it is a general hydrophilizing agent used for hygiene products.
  • the hydrophilicity is measured by the fiber contact angle measuring method described below, and the smaller the contact angle, the higher the hydrophilicity. Specifically, if the contact angle is 90 degrees or more, it is determined that the hydrophilicity is low, and if the contact angle is less than 90 degrees, the hydrophilicity is high.
  • the contact angle of the inner layer sheet 131 is preferably 50 degrees or more and 130 degrees or less, more preferably 70 degrees or more and 120 degrees or less, and most preferably 80 degrees or more and 110 degrees or less. That is, the lower limit value of the contact angle of the inner layer sheet 131 is preferably 50 degrees, more preferably 70 degrees, and most preferably 80 degrees.
  • the upper limit of the contact angle of the inner layer sheet 131 is preferably 130 degrees, more preferably 120 degrees, and most preferably 110 degrees.
  • the outer layer sheet 132 preferably has a high contact angle from the viewpoint of dew resistance. Therefore, the ideal contact angle is 180 degrees. Therefore, only the lower limit value is defined as a preferable value.
  • the lower limit of the contact angle is preferably 90 degrees or more, more preferably 110 degrees or more, and most preferably 130 degrees or more.
  • the upper limit value of the contact angle of the outer layer sheet 132 is 180 degrees.
  • the contact angle of the moisture absorbent sheet 133 is preferably 5 degrees or more and 70 degrees or less, more preferably 10 degrees or more and 60 degrees or less, and most preferably 15 degrees or more and 50 degrees or less. That is, the lower limit value of the contact angle of the moisture absorbent sheet 133 is preferably 5 degrees, more preferably 10 degrees, and most preferably 15 degrees.
  • the upper limit of the contact angle of the moisture absorbent sheet 133 is preferably 70 degrees, more preferably 60 degrees, and most preferably 50 degrees.
  • the difference between the contact angle of the moisture absorbent sheet 133 and the contact angle of the inner layer sheet 131 is preferably 30 degrees or more and 90 degrees or less, more preferably 40 degrees or more and 85 degrees or less, and most preferably 50 degrees or more and 80 degrees or less. is there. That is, the lower limit of the difference between the contact angle of the moisture absorbent sheet 133 and the contact angle of the inner layer sheet 131 is preferably 30 degrees, more preferably 40 degrees, and most preferably 50 degrees.
  • the upper limit of the contact angle difference is preferably 90 degrees, more preferably 85 degrees, and most preferably 80 degrees.
  • the difference between the contact angle of the inner layer sheet 131 and the contact angle of the outer layer sheet 132 is preferably 5 degrees or more and 90 degrees or less, more preferably 10 degrees or more and 80 degrees or less, and most preferably 15 degrees or more and 70 degrees or less. is there. That is, the lower limit of the difference between the contact angle of the inner layer sheet 131 and the contact angle of the outer layer sheet 132 is preferably 5 degrees, more preferably 10 degrees, and most preferably 15 degrees.
  • the upper limit of the contact angle difference is preferably 90 degrees, more preferably 80 degrees, and most preferably 70 degrees.
  • the contact angle is measured, for example, using a contact angle meter MCA-J manufactured by Kyowa Interface Science Co., Ltd. in a measurement environment of 20 ° C. Ion-exchanged water is dropped on the surface of the inner layer or the outer layer (about 20 picoliters), and then the contact angle is immediately measured using the contact angle meter. The measurement is carried out at 5 or more points of the fiber forming the hydrophilic region, and the average value thereof is taken as the contact angle. And In the case where one region (for example, a hydrophilic region) is taken out from a diaper that is an example of an absorbent article and evaluated and measured, when the region is fixed to another constituent member by an adhesive, fusion bonding, or the like.
  • the basis weight of the thermoplastic fiber sheet or thermoplastic fiber composite sheet is preferably not more than 5 g / m 2 above 50 g / m 2, more preferably 7 g / m 2 or more 45g / M 2 or less, and most preferably 10 g / m 2 or more and 40 g / m 2 or less. That is, the lower limit value is preferably 5 g / m 2 , more preferably 7 g / m 2 , and most preferably 10 g / m 2 .
  • the upper limit of the basis weight is preferably 50 g / m 2 , more preferably 45 g / m 2 , and most preferably 40 g / m 2 .
  • the relationship between the grammage of the inner layer sheet 131 and the outer layer sheet 132 is not particularly limited, but the liquid is transferred from the inner layer sheet 131 to the moisture absorption sheet 133, and the outer layer sheet 132 is required to have dew-proof property.
  • the basis weight of the outer layer sheet 132 is preferably higher than that of the inner layer sheet 131.
  • the moisture absorbent sheet 133 is made of cellulose fibers in the present embodiment, but it is sufficient that the moisture absorbent sheet contains at least 20% by mass, preferably 50% by mass, and more preferably 70% by mass of cellulose fibers.
  • Cellulose fibers include wood pulp, recycled pulp, chemical pulp, cotton, rayon and the like, and mixtures thereof. Wood pulp, recycled pulp, and chemical pulp are preferable because they have high hygroscopicity and are easily processed.
  • the moisture absorbent sheet 133 paper obtained by making cellulose fiber into paper, cloth obtained by weaving cellulose fiber, and then woven, or thermoplastic fiber (for example, polyethylene fiber, polypropylene fiber, or polyethylene terephthalate fiber) and cellulose fiber Spunlace or a combination thereof can be used, and preferably paper is used.
  • the paper or cloth may be subjected to various processes. Examples of such processing include water resistant processing and crepe processing. Also, a plurality of sheets of paper, cloth, or a combination thereof may be used.
  • the hydrophilicity of the moisture absorption sheet 133 is higher than that of the inner layer sheet 131.
  • the moisture absorbent sheet 133 preferably has a basis weight of 5 g / m 2 or more and 60 g / m 2 or less, more preferably 7 g / m 2 or more and 55 g / m 2 or less, and most preferably 9 g / m 2 or more and 50 g / m 2 or more. m 2 or less. That is, the lower limit of the basis weight is 5 g / m 2 , more preferably 7 g / m 2 , and most preferably 9 g / m 2 .
  • the upper limit of the basis weight is preferably 60 g / m 2 , more preferably 55 g / m 2 , and most preferably 50 g / m 2 .
  • the lower limit of the basis weight is 5 g / m 2 , more preferably 7 g / m 2 , most preferably 9 g / m 2
  • the upper limit is preferably 25 g / m 2 , more preferably Is 22 g / m 2 and most preferably 20 g / m 2
  • the lower limit of the basis weight is 15 g / m 2 , more preferably 20 g / m 2 , and most preferably 25 g / m 2 and the upper limit.
  • the elongation percentage due to humidity which is preferably measured by an elongation percentage measuring method, is 2% or more, more preferably 5% or more, and most preferably 7% or more.
  • the bonding portions of the moisture absorbent sheet 133 bonded to the inner layer sheet 131 may be separated from the inner layer sheet 131 when absorbing moisture.
  • the degree of freedom of the moisture absorbing sheet 133 is increased, the moisture absorbing sheet 133 can be more swollen in the fiber orientation direction, and a larger space can be formed between the sheets.
  • a tear strength measured according to JIS P-8113 is preferably 200 cN / 25 mm or less, and more preferably 150 cN / 25 mm or less.
  • the moisture absorbent sheet 133 and the inner layer sheet 131 are joined with a hot melt whose adhesive strength decreases when absorbing moisture, for example, a water soluble adhesive such as a water soluble polymer hot melt adhesive.
  • a water soluble adhesive such as a water soluble polymer hot melt adhesive.
  • water-soluble adhesives include water-soluble polymer adhesives such as polyvinyl alcohol, starch, carboxymethyl cellulose and water-soluble acrylic resins.
  • the moisture absorbent sheet 133 may be creped.
  • the creping process is performed, for example, so that a large number of wrinkles extending in the direction orthogonal to the fiber orientation direction of the moisture absorbent sheet 133 are formed.
  • the crepe process is performed by using a general doctor blade and changing the conveying speed.
  • the lower limit value of the crepe rate of the moisture absorbent sheet 133 is 2%, more preferably 5%.
  • the upper limit of the crepe ratio is preferably 40%, more preferably 30%.
  • the crepe rate can be evaluated by the following measuring method. The following measurement is performed at 23 ⁇ 2 ° C. and a relative humidity of 50 ⁇ 5%, and the sample is stored in the same environment for 24 hours or more before the measurement.
  • the moisture absorbent sheet 133 may be stretched by pressing with an embossing roll or the like. By the stretching process, the moisture absorbent sheet 133 becomes easier to stretch due to moisture absorption, and the flexibility also increases.
  • the joints 134a to 134c are preferably provided in such a processing direction.
  • the absorbent article of the present invention may further include an elastic body (FIGS. 6, 235a to c) in the outer package 23, like the pants-type disposable diaper shown in FIG. 4 (a).
  • the elastic bodies 235a to 235c are arranged between the inner layer sheet 231 and the outer layer sheet 232 such that the extending direction thereof is along the waistline direction.
  • the elastic bodies 235a to 235c have a bond with the moisture absorbent sheet 233 at least on both side portions S, and the bond in that case is preferably by the above-mentioned hot melt adhesive.
  • Examples of the elastic bodies 235a to 235c include natural rubber, butadiene rubber, styrene-butadiene rubber, and thread rubber such as urethane rubber, or flat rubber, or a stretchable sheet including a filament. Of these, thread rubber is preferable.
  • the lower limit of the fineness of the rubber thread is preferably 300 dtex, more preferably 400 dtex, and the upper limit thereof is preferably 1300 dtex, more preferably 1200 dtex.
  • the lower limit of the pitch between the rubber threads is preferably 2 mm, more preferably 3 mm, and the upper limit is preferably 20 mm, more preferably 15 mm.
  • the moisture absorption sheet 233 may be arranged between the elastic bodies 235a to 235c and the outer layer 232 as shown in FIG. 6 (a).
  • FIG. 6B there is an advantage that the space between the two adjacent elastic bodies 235a to 235c can be used for swelling of the moisture absorbent sheet 133 in the fiber orientation direction.
  • the moisture absorbent sheet 233 may be joined to the inner layer sheet 231 via the elastic bodies 235a to 235c.
  • the joint portions 235a to 235c are made of a hot melt adhesive because the hygroscopicity is further enhanced.
  • An absorbent article comprising an absorbent body and an exterior body holding the absorbent body,
  • the exterior body comprises an inner layer sheet on the skin side of the wearer, an outer layer sheet on the non-skin side, and a moisture absorbent sheet provided between the inner layer sheet and the outer layer sheet,
  • the inner layer sheet and the outer layer sheet are thermoplastic fiber sheets or thermoplastic fiber composite sheets,
  • the moisture absorbent sheet contains a cellulose fiber,
  • the fiber orientation of the moisture absorbent sheet is arranged in a direction different from the direction orthogonal to the fiber orientation of the inner layer sheet,
  • An absorbent article in which at least a part of the moisture absorbent sheet is joined to the outer package so as to be separated from the inner layer sheet by swelling in the fiber orientation direction due to moisture absorption.
  • ⁇ 2> The absorbent article according to ⁇ 1>, wherein the hygroscopic sheet is arranged so that the fiber orientations of the inner layer sheet and the outer layer sheet are the same.
  • ⁇ 3> The absorbent article according to ⁇ 1>, wherein the hygroscopic sheet is arranged so that the fiber orientation is different from that of the inner layer sheet and the outer layer sheet.
  • ⁇ 4> The absorbent article according to any one of the above ⁇ 1> to ⁇ 3>, wherein the moisture absorbent sheet is joined to the inner layer sheet and the outer layer sheet via joining portions, respectively.
  • ⁇ 5> The absorbent article according to ⁇ 4>, wherein the joint between the moisture absorbent sheet and the inner layer sheet faces the joint between the moisture absorbent sheet and the outer layer sheet with the moisture absorbent sheet in between. Goods.
  • ⁇ 6> The absorbent article according to ⁇ 4> or ⁇ 5>, wherein the joint has a discontinuous shape.
  • ⁇ 7> The absorbent article according to ⁇ 6>, wherein the joint is dot-shaped and is arranged in the fiber orientation direction of the moisture absorbent sheet.
  • ⁇ 8> The absorbent article according to ⁇ 6>, wherein the joint portion is linear and is provided in a direction orthogonal to the fiber orientation direction of the moisture absorbent sheet.
  • thermoplastic fiber composite sheet is a composite sheet of one or a plurality of thermoplastic fiber sheets and another material.
  • ⁇ 13> The absorbent article according to any one of ⁇ 1> to ⁇ 11>, wherein the hygroscopic sheet has a tear strength of 200 cN / 25 mm or less measured according to JIS P-8113.
  • ⁇ 14> The absorbent article according to any one of ⁇ 1> to ⁇ 13>, wherein the moisture absorption sheet has a crepe ratio of 2% or more and 40% or less.
  • ⁇ 15> The absorbent article according to any one of ⁇ 1> to ⁇ 14>, wherein the inner layer sheet has a contact angle of 50 degrees or more and 130 degrees or less.
  • ⁇ 16> The absorbent article according to any one of ⁇ 1> to ⁇ 15>, wherein the outer layer sheet has a contact angle of 90 degrees or more and 180 degrees or less.
  • ⁇ 17> The absorbent article according to any one of ⁇ 1> to ⁇ 16>, wherein the hygroscopic sheet has a contact angle of 5 degrees or more and 70 degrees or less.
  • ⁇ 18> The absorbent article according to any one of ⁇ 1> to ⁇ 17>, wherein a difference between the contact angle of the moisture absorbent sheet and the contact angle of the inner layer sheet is 30 degrees or more and 90 degrees or less.
  • ⁇ 19> The absorbent article according to any one of ⁇ 1> to ⁇ 18>, wherein a difference between a contact angle of the inner layer sheet and a contact angle of the outer layer sheet is 5 degrees or more and 90 degrees or less.
  • ⁇ 20> The absorbent article according to any one of ⁇ 1> to ⁇ 19>, further including an elastic body between the inner layer sheet and the outer layer sheet.
  • ⁇ 21> The absorbent article according to ⁇ 20>, wherein the elastic body is rubber thread.
  • ⁇ 22> The absorbent article according to any one of ⁇ 1> to ⁇ 21>, wherein the elastic body is arranged between the inner layer sheet and the moisture absorbent sheet.
  • ⁇ 23> The absorbent according to any one of ⁇ 19> to ⁇ 22>, wherein the moisture absorbent sheet is joined to a rubber thread with a hot melt adhesive, and is joined to the inner layer sheet via the rubber thread. Sex goods.
  • ⁇ 24> The absorbent article according to any one of ⁇ 1> to ⁇ 23>, wherein the moisture absorbent sheet is joined to the outer layer sheet at at least one point.
  • ⁇ 25> The absorbent article according to the above ⁇ 24>, wherein a joint portion between the moisture absorbent sheet and the outer layer sheet is arranged according to a predetermined pattern.
  • ⁇ 26> The absorbent article according to ⁇ 24> or ⁇ 25>, wherein a joint portion between the moisture absorbent sheet and the outer layer sheet is composed of a hot melt adhesive.
  • ⁇ 27> The absorbent article according to any one of ⁇ 1> to ⁇ 26>, wherein the outer layer sheet is hydrophobic.
  • ⁇ 28> The absorbent article according to any one of ⁇ 1> to ⁇ 27>, wherein the inner layer sheet and the outer layer sheet are spunbond nonwoven fabrics.
  • ⁇ 29> The absorbent article according to any one of ⁇ 1> to ⁇ 28>, wherein the inner layer sheet and the outer layer sheet are air-through nonwoven fabrics.
  • the absorbent article of the present invention reduces stuffiness in the diaper due to sweating and the like, and does not give a sticky feeling to the wearer's skin.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
PCT/JP2019/042551 2018-11-15 2019-10-30 吸収性物品 WO2020100590A1 (ja)

Priority Applications (2)

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CN114305879A (zh) * 2020-09-30 2022-04-12 尤妮佳股份有限公司 短裤型吸收性物品
JP7175357B1 (ja) * 2021-08-11 2022-11-18 株式会社リブドゥコーポレーション 使い捨て吸収性物品および使い捨て吸収性物品の製造方法
JP7175358B1 (ja) * 2021-08-11 2022-11-18 株式会社リブドゥコーポレーション 使い捨て吸収性物品および使い捨て吸収性物品の製造方法
EP4403152A4 (en) * 2021-12-20 2025-03-19 Unicharm Corporation Absorbent article

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010246901A (ja) * 2009-03-23 2010-11-04 Kao Corp 吸収性物品
JP2010269025A (ja) * 2009-05-22 2010-12-02 Livedo Corporation 伸縮シートおよび伸縮シートを有する使い捨て吸収性物品
JP2014068680A (ja) * 2012-09-27 2014-04-21 Kao Corp 吸収性物品
JP2015104609A (ja) * 2013-12-02 2015-06-08 株式会社リブドゥコーポレーション 使い捨てパンツ型おむつ
JP2015173751A (ja) * 2014-03-13 2015-10-05 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP2016125188A (ja) * 2014-12-26 2016-07-11 ユニ・チャーム株式会社 伸縮性不織布の製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8663184B2 (en) * 2005-08-05 2014-03-04 The Procter & Gamble Company Absorbent article with a multifunctional side panel
EP2532330B1 (en) * 2011-06-10 2022-06-01 The Procter & Gamble Company Laminate absorbent core for use in absorbent articles
CN207492100U (zh) * 2017-10-09 2018-06-15 福州福盟新材料科技有限公司 一种吸湿透气面料

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010246901A (ja) * 2009-03-23 2010-11-04 Kao Corp 吸収性物品
JP2010269025A (ja) * 2009-05-22 2010-12-02 Livedo Corporation 伸縮シートおよび伸縮シートを有する使い捨て吸収性物品
JP2014068680A (ja) * 2012-09-27 2014-04-21 Kao Corp 吸収性物品
JP2015104609A (ja) * 2013-12-02 2015-06-08 株式会社リブドゥコーポレーション 使い捨てパンツ型おむつ
JP2015173751A (ja) * 2014-03-13 2015-10-05 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP2016125188A (ja) * 2014-12-26 2016-07-11 ユニ・チャーム株式会社 伸縮性不織布の製造方法

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