WO2014080839A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2014080839A1
WO2014080839A1 PCT/JP2013/080864 JP2013080864W WO2014080839A1 WO 2014080839 A1 WO2014080839 A1 WO 2014080839A1 JP 2013080864 W JP2013080864 W JP 2013080864W WO 2014080839 A1 WO2014080839 A1 WO 2014080839A1
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WO
WIPO (PCT)
Prior art keywords
pressing part
area
skin
pressing
absorbent
Prior art date
Application number
PCT/JP2013/080864
Other languages
English (en)
Japanese (ja)
Inventor
隆範 松尾
浩喜 森
Original Assignee
ユニ・チャーム株式会社
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.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201380060495.0A priority Critical patent/CN104797224B/zh
Priority to AU2013348986A priority patent/AU2013348986B2/en
Publication of WO2014080839A1 publication Critical patent/WO2014080839A1/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
    • A61F13/53—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
    • A61F13/531—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 having a homogeneous composition through the thickness of the pad
    • 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
    • A61F2013/530868—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 characterized by the liquid distribution or transport means other than wicking layer
    • A61F2013/530927—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 characterized by the liquid distribution or transport means other than wicking layer having longitudinal barriers
    • A61F2013/530934—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 characterized by the liquid distribution or transport means other than wicking layer having longitudinal barriers having a density gradient
    • A61F2013/530948—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 characterized by the liquid distribution or transport means other than wicking layer having longitudinal barriers having a density gradient along the length
    • 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
    • A61F13/531—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 having a homogeneous composition through the thickness of the pad
    • A61F2013/5312—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 having a homogeneous composition through the thickness of the pad with structure resisting compression

Definitions

  • the present invention relates to an absorbent article provided with an absorber containing a superabsorbent polymer.
  • Patent Document 1 discloses an absorption comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet and having an absorbent polymer material.
  • a sex product is disclosed.
  • the absorber of patent document 1 has the 1st pulp layer by the side of a surface sheet, and the 2nd pulp layer by the side of a back surface, and has high absorbency between a 1st pulp layer and a 2nd pulp layer.
  • Molecular material is placed (see paragraph 0020 and FIG. 4).
  • the absorbent article configured as described above, the absorbent disposed inside the absorber while maintaining the body fluid drawability without arranging the absorbent polymer material on the top sheet side of the absorber.
  • the absorption capacity can be increased by the functional polymer material, and leakage of body fluid can be suppressed.
  • the absorbent polymer material is granular and easily moves in the absorbent body as compared with fibers such as pulp. Therefore, the absorbent polymer material may move in the absorbent body during the transport process of the absorbent article or when the absorbent article is worn, and the absorbent polymer material may be unevenly arranged.
  • the absorbent polymer material is arranged unevenly, the absorption rate of the body fluid in the part is lowered, and the absorption performance may be deteriorated. Further, the absorbent polymer material is granular and hard compared to the fiber. For this reason, when the absorbent polymer material is arranged in an uneven manner, the portion becomes hard and the wearing feeling may be deteriorated.
  • an object of the present invention is to provide an absorbent article that can suppress the deterioration of the wearing feeling while ensuring the absorption performance of the absorber.
  • an absorbent article is provided with a liquid-permeable top sheet, a liquid-impermeable back sheet, and between the top sheet and the back sheet, and a fiber.
  • an absorbent body including a superabsorbent polymer wherein the absorbent body is an absorbent article in which a plurality of compressed parts are formed by compressing the absorbent body in the thickness direction, and the compressed part is the absorbent.
  • a first pressing portion extending in a first inclined direction that intersects the longitudinal direction and the width direction of the article, and a second extending direction that intersects the first inclined direction and intersects the longitudinal direction and the width direction.
  • first pressing parts, and the first pressing part and the second pressing part are alternately formed along the first direction which is one of the longitudinal direction and the width direction, and the first direction. Alternatingly spaced along a second direction perpendicular to Between the first pressing part and the second pressing part adjacent in the first direction, and between the first pressing part and the second pressing part adjacent in the second direction.
  • the area is provided with a non-compressed area where no compressed part is formed, and the length of the first compressed part in the first direction is longer than the length of the first compressed part in the second direction.
  • the length of the second pressing part in the first direction is longer than the length of the second pressing part in the second direction.
  • FIG. 1 is a plan view of the disposable diaper according to the first embodiment.
  • FIG. 2 is a cross-sectional view taken along line X1-X′1 of FIG.
  • FIG. 3 is an enlarged view of a portion B shown in FIG.
  • FIG. 4 is an enlarged view of a portion A shown in FIG.
  • FIG. 5 is an enlarged view of the squeezing portion of the absorbent body according to Modification 1 with reference to the portion A shown in FIG. 1.
  • the absorbent article 1 is an open type diaper.
  • an open type diaper is not a diaper that has been molded into a pants shape in advance, but is in a state where it is unfolded in a state before use, and is used by fastening predetermined parts of the product with tape or the like.
  • a diaper worn by a person may be a pant-type diaper that has been formed into a pant shape in advance, an adult diaper, or a children's diaper.
  • FIG. 1 is a plan view of the absorbent article 1
  • FIG. 2 is a cross-sectional view of the X1-X1 ′ cross section shown in FIG.
  • the absorbent article 1 corresponds to the front waistline region S1 disposed on the wearer's belly side, the rear waistline region S2 disposed on the wearer's back side, and the inseam of the wearer, and the front waistline region S1 and the rear And a crotch region S3 located between the waist region S2.
  • the absorbent article 1 includes a liquid-permeable surface sheet 10, a side sheet 60, a second sheet 15, a liquid-impermeable exterior sheet 20, and an absorber 30.
  • the absorbent article 1 includes a front-rear direction L extending to the wearer's body front side and a rear body side, a width direction W orthogonal to the front-rear direction, an inner direction T1 toward the wearer, and a side opposite to the inner direction (wearer And an outward direction T2 toward the side away from the head.
  • the inner direction T1 is a skin contact side such as a surface sheet
  • the outer direction is a non-skin contact side.
  • the top sheet 10 is provided on the skin contact side in contact with the wearer's skin.
  • the top sheet 10 is formed of a liquid-permeable sheet such as a hydrophilic nonwoven fabric or woven fabric, an apertured plastic film, or an apertured hydrophobic nonwoven fabric.
  • the second sheet 15 is joined to the non-skin contact side (outward direction side) of the top sheet 10.
  • the second sheet 15 is disposed between the top sheet 10 and the absorber 30.
  • the absorption speed of the body fluid can be increased and the return of the body fluid after absorption can be suppressed.
  • the second sheet 15 for example, an air-through nonwoven fabric or a perforated film is used. Note that the absorbent article may not include the second sheet 15.
  • the second sheet 15 is configured to be shorter in the width direction and in the front-rear direction than the absorber 30.
  • the second sheet 15 is disposed so as to cover a part of the absorber 30.
  • the side sheets 60 are arranged so as to cover the outer end portions in the width direction of the top sheet 10 in the inner direction T1 than the top sheet 10.
  • a liquid-impermeable sheet or the like is used for the side sheet 60.
  • the side sheet 60 is bonded to the surface of the top sheet 10 on the skin contact side via an adhesive.
  • the side sheets overlap each other at the inner end in the width direction of the side sheet 60.
  • a leak-proof elastic material 61 is provided in a portion extending along the front-rear direction L at a portion where the side sheets overlap.
  • the side sheet 60 and the leak-proof elastic material 61 constitute a leak-proof wall that prevents lateral leakage of excrement.
  • the leak-proof walls are provided along the front-rear direction of the absorbent article 1 at both ends in the width direction of the absorbent body 30.
  • the exterior sheet 20 includes a back nonwoven fabric 21 that comes into contact with clothes, and a liquid-impermeable back film 22 that is located on the skin side of the back nonwoven fabric 21 and formed of a waterproof film (for example, polyethylene).
  • the back film 22 is made of a moisture permeable or non-moisture permeable film.
  • the absorber 30 is provided between the exterior sheet 20, the top sheet 10, and the second sheet 15.
  • the absorber 30 absorbs the body fluid of the wearer.
  • the absorber 30 is formed by an absorbent core made of an absorbent material such as pulverized pulp or a superabsorbent polymer, and an absorbent sheet such as a tissue covering the absorbent core. The configuration of the absorber will be described in detail later.
  • the side sheet 60 and the exterior sheet 20 are joined to each other on the outer side in the width direction than the top sheet 10.
  • the outer end portions in the width direction of the side sheets 60 and the exterior sheet 20 are recessed inward in the width direction in the crotch region S3.
  • a region around the dent of the crotch region S3 is a leg region that is arranged along the wearer's leg.
  • a leg periphery elastic member 25 that expands and contracts in the front-rear direction is disposed.
  • the leg elastic members 25 are arranged along the front-rear direction L, and three leg elastic members 25 are arranged at intervals in the width direction.
  • the leg-hole elastic member 25 is disposed between the side sheet 60 and the back film 22 in a state of being stretched in the front-rear direction L.
  • a fastening member 41 extending outward in the width direction from the side sheet 60 and the exterior sheet 20 is provided.
  • the fastening member 41 is joined between the exterior sheet 20 and the side sheet 60.
  • the fastening member 41 extends outward in the width direction from the top sheet 10.
  • the fastening member 41 includes a hook portion 41A that engages with a target portion (not shown), which will be described later, and a fixed piece 41B to which the hook portion 41A is attached.
  • the absorbent body is configured to include an absorbent core containing pulp and a superabsorbent polymer, and a tissue that wraps the absorbent core.
  • the tissue includes an upper layer tissue disposed on the skin surface side of the absorbent core and a lower layer tissue disposed on the non-skin surface side. In the drawings, tissue is omitted for convenience.
  • Absorbent core of the present embodiment the pulp basis weight 254.4g / m 2, and is configured to include a superabsorbent polymer having a basis weight of 228.3g / m 2, a.
  • the ratio of superabsorbent polymer to absorbent material throughout the absorbent core is 47%.
  • the ratio of the superabsorbent polymer to the absorbent material of the entire absorbent core is desirably 35 to 55%.
  • the area of the absorber is 460 cm 2 .
  • the basis weight of the upper layer tissue is 18 g / m 2
  • the basis weight of the lower layer tissue is 16 g / m 2 .
  • FIG. 3 is an enlarged view of a portion B shown in FIG. In FIG. 3, a rough section of the skin side area 30A, the center area 30B, and the non-skin side area 30C is illustrated.
  • the skin side region 30A is a constant region including the skin contact side surface of the absorber 30 and extending from the skin contact side surface toward the non-skin contact surface side.
  • the non-skin side area 30 ⁇ / b> C is a constant area including the non-skin contact side surface of the absorber and from the non-skin contact side surface toward the skin contact surface side.
  • the central area 30B is an area between the skin side area and the non-skin side area.
  • the skin side area, the center area, and the non-skin side area are laminated in the thickness direction T in this order.
  • the thickness of the skin side area is 10% to 40% of the thickness of the absorbent body
  • the thickness of the central area is 20% to 80% of the thickness of the absorbent body
  • the thickness of the non-skin side area is the thickness of the absorbent body. 10% to 40%.
  • the thickness of the skin area is 40%, the thickness of the center area is 20%, and the thickness of the non-skin side area is 40%.
  • the thickness of the skin side region is 10%, the thickness of the central region is 80%, and the thickness of the non-skin side region is 10%.
  • the thicknesses of the skin side area, the central area, and the non-skin side area of the absorber can be appropriately set within the range of these absorbers.
  • the thickness of the non-skin side area may be greater than the thickness of the skin side area.
  • the superabsorbent polymer has a grain shape, and moves between the pulps when transporting or wearing the disposable diaper, and may move to the back sheet side of the absorbent body.
  • the outer surface of the disposable diaper (the surface on which the back nonwoven fabric 21 is disposed) is roughened by the superabsorbent polymer, and the wearer (for example, replace the disposable diaper) A hard superabsorbent polymer may hit.
  • the thickness of the non-skin side region thicker than the thickness of the skin side region, it is possible to suppress roughness due to the superabsorbent polymer on the outer surface of the disposable diaper.
  • the skin side area may be thicker than the non-skin side area.
  • the wearer often touches the outer surface of the disposable diaper, but the wearer often touches the inner surface of the disposable diaper (surface on the surface sheet side).
  • the thickness of the skin side area thicker than the thickness of the non-skin side area, it is possible to suppress roughness due to the superabsorbent polymer on the inner surface of the disposable diaper, and to improve the wearing feeling.
  • the thickness of the absorber 30 is desirably 5.0 mm or less. By increasing the thickness of the absorber 30, the cushioning property of the absorber 30 can be enhanced. However, if the thickness of the absorbent body 30 is made too thick, it may be difficult to maintain the shape of the entire absorbent body in the thickness direction by the compressed portion described later. Therefore, the thickness of the absorber is desirably 5.0 mm or less. In addition, the thickness of the absorber of this Embodiment is 3.0 mm, and the depth of the pressing part mentioned later is 1.2 mm.
  • the thickness of an absorber is the state which extended elastic members, such as the leg elastic material 25, until the state in which wrinkles, such as a surface sheet and a side sheet 60 which comprise a disposable diaper, are not formed (shown in FIG. 1). State).
  • each of the skin side area, the center area, and the non-skin side area is, for example, impregnated with liquid nitrogen, frozen, cut with a razor, returned to room temperature, and then scanned with an electron microscope (for example, Keyence). It can be measured by measuring at a magnification of 50 times using VE7800).
  • the density of the superabsorbent polymer in the central region only needs to be configured so that the density of the superabsorbent polymer is higher than that in the skin side region and the non-skin side region.
  • the polymer may be disposed, or the superabsorbent polymer may not be disposed.
  • the configuration in which the superabsorbent polymer is not disposed in the skin side region and the non-skin side region is a configuration in which the superabsorbent polymer is not disposed in the skin side region and the non-skin side region in the production process.
  • the process for example, the superabsorbent polymer is arranged in the skin side area and the non-skin side area by moving a part of the superabsorbent polymer in the central area to the skin side area and the non-skin side area in the product transportation process etc.
  • the density of the superabsorbent polymer in the central region can be 0.14 g / cm 3 .
  • the central region of the absorbent body is constituted by a sheet material sandwiching the superabsorbent polymer and the superabsorbent polymer, for example, the ratio of the superabsorbent polymer in the central region can be 80% or more.
  • the density of each superabsorbent polymer in the skin side area, the central area, and the non-skin side area can be measured, for example, by the following method.
  • the skin side area, central area, and non-skin side area can be separated in a state where the absorbent body is dry, the absorbent body with a known area is separated from the skin side area, central area, and non-skin side area, and the skin side Measure the thickness of each area, center area and non-skin area.
  • the thickness of each skin side area, center area, and non-skin side area can be measured using an electron microscope (for example, KEYENCE VE7800).
  • the skin side area, the central area, and the non-skin side area are each enclosed in a bag, and each bag is shaken at least several tens of times to separate the superabsorbent polymer from the skin side area, the central area, and the non-skin side area.
  • the skin side area, the center area, and the non-skin side area are taken out, and the superabsorbent polymer that could not be separated is taken out with tweezers.
  • the superabsorbent polymer in the bag and the superabsorbent polymer taken out by tweezers are combined and the weight is measured. Then, the density of the superabsorbent polymer in the skin side area, the central area, and the non-skin side area can be calculated.
  • the weight of the absorbent body having a known area is measured.
  • the absorber is immersed for 5 minutes in a sufficient amount of ion-exchanged water colored with a water-soluble dye.
  • the skin side area of the absorbent body is removed from the absorbent body with the tweezers using the interface of the swollen superabsorbent polymer as the release surface. Using the taken-out part as the skin side area, it is dried by an electric dryer at 80 ° C. for 1 hour or more.
  • the dyed superabsorbent polymer adhering to the skin side area after drying is separated from the skin side area with tweezers, etc., collected and weighed, and the weight is determined as the weight of the water absorbent polymer in the skin side area. To do. Similarly, the weight of the superabsorbent polymer in the non-skin side area is measured.
  • each skin side area, central area, and non-skin side area is measured in advance using an electron microscope (for example, KEYENCE VE7800).
  • the interface of the skin side area, the center area, and the non-skin side area becomes the boundary between the part with a large amount of the superabsorbent polymer and the part with a small amount of the super absorbent polymer (the boundary that peels when peeled off with tweezers).
  • the boundary surface between the area and the central area should be in the range of 10-40% from the whole skin side and non-skin side.
  • the central area of the absorbent body is configured with a higher density of superabsorbent polymer than the skin side area and the non-skin side area, and the density of the superabsorbent polymer in the skin side area and the non-skin side area is higher than the central area. Is also low.
  • the skin side area and the non-skin side area of the absorbent body are portions that easily come into contact with the wearer's skin. If the basis weight of the superabsorbent polymer in the portion is high, the wearing feeling is likely to deteriorate.
  • the basis weight of the superabsorbent polymer in the skin side region and the non-skin side region that are easily in contact with the skin of the wearer is low, deterioration of wearing feeling such as roughness due to the superabsorbent polymer can be suppressed.
  • the ratio of the superabsorbent polymer to the entire absorbent material constituting the absorber in order to ensure the absorption performance.
  • the ratio of the superabsorbent polymer to the entire absorbent material constituting the absorbent body is increased, the surface of the absorbent body may become rough due to the superabsorbent polymer, and the touch may be deteriorated.
  • the superabsorbent polymer in the skin side region absorbs the body fluid, thereby causing gel blocking, which may deteriorate the absorption performance of the entire absorbent body.
  • the absorbent body 30 is formed with a plurality of compressed portions obtained by compressing the absorbent body in the thickness direction.
  • the pressing part is formed on the skin contact surface side of the absorbent body, and is formed on the front surface side recessed part 31 recessed from the top sheet side toward the back sheet side, and on the back sheet side of the absorber, and from the back sheet side to the surface And a back surface side recess 32 that is recessed toward the sheet side.
  • the pressing part is formed by compressing the absorber in the thickness direction T by embossing.
  • the front surface side recess 31 is compressed from the inner direction T1 toward the outer direction T2, and is recessed from the inner direction toward the outer direction.
  • the surface of the absorbent article on the skin contact side is formed with a recess disposed along the surface-side recess 31 of the absorbent body 30.
  • the recess is formed by arranging the top sheet 10 and the second sheet 15 along the top surface side recess 31 of the absorber 30.
  • the back surface side recessed part 32 is compressed toward the inner direction T1 from the outer direction T2, and is recessed toward the inner direction from the outer direction.
  • a recess disposed along the back surface side recess 32 of the absorbent body 30 is formed on the surface on the non-skin contact side of the absorbent article.
  • the recess is formed by arranging the back nonwoven fabric 21 and the back film 22 along the back surface side recess 32 of the absorber 30.
  • FIG. 4 is an enlarged view of a portion A shown in FIG.
  • the shape of the front surface side recess 31 and the shape of the back surface side recess 32 of the present embodiment are the same, and therefore, in the following description, the shape of the front surface side recess 31 will be described as an example.
  • the shape of the front surface side recessed part 31 and the shape of the back surface side recessed part 32 are not restricted to the same structure, The shape of the front surface side recessed part 31 and the shape of the back surface side recessed part 32 may differ. Furthermore, the pressing part should just have at least any one among the surface side recessed part 31 and the back surface side recessed part 32. FIG.
  • intersects the 1st pressing part 33 extended in the 1st inclination direction C1 which cross
  • the 1st pressing part 33 and the 2nd pressing part 34 are alternately formed along the longitudinal direction L as a 1st direction which is one of a longitudinal direction and the width direction, and are as a 2nd direction orthogonal to a 1st direction. Are formed alternately at intervals along the width direction W. Therefore, a plurality of wavy linear pressing portions 35 that are continuous in the longitudinal direction are formed in the absorber.
  • the linear pressing part 35 is comprised by the 1st pressing part 33 and the 2nd pressing part 34 which continue in a line along a longitudinal direction.
  • the pressing portion In the region between the first pressing portion 33 and the second pressing portion 34 adjacent in the longitudinal direction and the region between the first pressing portion 33 and the second pressing portion 34 adjacent in the width direction, the pressing portion is formed. A non-squeezed region R1 is provided.
  • the length L33 in the longitudinal direction of the first pressing part 33 is longer than the length W33 in the width direction of the first pressing part 33, and the length L34 in the longitudinal direction of the second pressing part 33 is the width direction of the second pressing part. Longer than W34. Therefore, the shape of the non-squeezing region R1 has a longer dimension in the longitudinal direction than a dimension in the width direction. Moreover, the shape in planar view of the non-pressing area
  • region R1 is a rhombus shape.
  • the compressed part Since the compressed part is formed in the absorbent body, the compressed part can suppress the movement of the superabsorbent polymer in the absorbent body, and can suppress deterioration in wearing feeling and absorbent performance due to the superabsorbent polymer being biased. .
  • the 1st pressing part 33 is along the 1st inclination direction
  • the 2nd pressing part 34 is along the 2nd inclination direction C2
  • the 1st pressing part 33 and the 2nd pressing part are arrange
  • the first pressing portion 33 and the second pressing portion 34 are continuous in the longitudinal direction and the width direction, and no gap is provided between the first pressing portion 33 and the second pressing portion 34, the first A portion where the compressed portion 33 and the second compressed portion 34 intersect in the longitudinal direction and the width direction is formed. Since the absorber is compressed in the thickness direction, the portion where the first pressing portion and the second pressing portion intersect is harder than the surroundings. If the superabsorbent polymer is disposed at a portion where the first pressing portion and the second pressing portion intersect, it may become harder and the wearer may feel uncomfortable.
  • region is provided in the absorber.
  • the area of the squeezing part is preferably 200 to 600 mm 2 .
  • the front surface side recess 31 is compressed in the thickness direction from the skin contact side of the absorber toward the non-skin contact side. Since the surface side recessed part 31 is compressed in the thickness direction from the skin contact side of the absorbent body toward the non-skin contact side, the fiber density in the region on the skin contact surface side of the absorbent body is increased. Therefore, the cushioning property on the skin contact surface side of the absorbent body that touches the skin of the wearer is enhanced, and the touch is improved. Moreover, the fiber density of the area
  • the back surface side concave portion 32 is compressed in the thickness direction from the non-skin contact side of the absorber toward the skin contact side. Since the back surface side recessed part 32 is compressed in the thickness direction from the non-skin contact side of the absorbent body toward the skin contact side, the fiber density of the region on the non-skin contact surface side of the absorbent body is increased. Therefore, the cushioning property on the non-skin contact surface side of the absorbent body that is easily touched by the wearer is enhanced, and the touch is improved. Moreover, the fiber density of the area
  • the fiber of the skin surface side and the non-skin surface side fiber of an absorber can be firmly entangled.
  • the cushioning properties of the absorbent body on the skin contact surface side and the non-skin contact surface side can be increased, so that it is possible to suppress a sense of discomfort even when the thickness is reduced.
  • Width T36 between the first pressing portion and the second pressing portion in the width direction is 0.35 mm or more and 8.5 mm or less. 0.35 mm is the average particle diameter of the superabsorbent polymer.
  • interval of the width direction with a 1st pressing part and a 2nd pressing part is smaller than the particle size of a superabsorbent polymer, between a 1st pressing part and a 2nd pressing part adjacent to the width direction is a superabsorbent polymer. Does not pass, and a portion in which the superabsorbent polymer is solidified occurs between the first pressing portion and the second pressing portion.
  • the superabsorbent polymer Since the superabsorbent polymer has higher rigidity than the pulp, when a portion where the superabsorbent polymer is hardened is formed, the portion becomes locally hard and the wearing feeling may be deteriorated.
  • interval of the width direction of a 1st pressing part and a 2nd pressing part is 0.35 mm or more, Therefore A super absorbent polymer exists between the 1st pressing part and 2nd pressing part which adjoin a width direction. A passing space can be formed.
  • a pressing part is arrange
  • a large number of spaces surrounded on all sides by a pair of first pressing parts and a pair of second pressing parts are formed in the absorber.
  • local hardening can be suppressed by forming the space which a superabsorbent polymer passes between the 1st pressing part and 2nd pressing part which adjoin the width direction.
  • interval T36 of the width direction of the 1st pressing part 33 and the 2nd pressing part 34 is 8.5 mm or less, and the more preferable space
  • the compression part is formed in the substantially whole absorber, and the bending rigidity of an absorber becomes high because the compression part is formed. Therefore, even when an external force is applied to the absorber, such as when the absorber is pressed from the outer side in the width direction to the inner side in the width direction, it becomes difficult to bend.
  • interval of the width direction of a 1st pressing part and a 2nd pressing part is longer than 8.5 mm, the area
  • interval of the width direction of a 1st pressing part and a 2nd pressing part from a viewpoint of preventing the absorber from shaking 8.5 mm or less is preferable. Furthermore, if the distance in the width direction between the first pressing part and the second pressing part is 4.25 mm or less, the sway of the absorber can be effectively suppressed.
  • the pressing part Since the pressing part is formed over the entire surface of the absorbent body, it suppresses the movement of the superabsorbent polymer over the entire surface of the absorbent body, and the wearing feeling due to the uneven arrangement of the absorbent polymer material Deterioration of absorption performance can be suppressed. Furthermore, since the pressing part is formed in the whole surface of an absorber, a bodily fluid can be spread
  • the compressed portion is formed on the entire surface, but the compressed portion may not be formed on the entire surface.
  • mouth By forming the squeezing part partially rather than the entire surface of the absorbent body, the rigidity of the entire absorbent body can be reduced and the flexibility can be increased.
  • the linear pressing part 35 where the 1st pressing part 33 and the 2nd pressing part 34 continued is arrange
  • the absorber 30 has a longer length in the longitudinal direction than the length in the width direction, and there is a possibility that the absorber 30 cannot be efficiently used up to both ends in the longitudinal direction of the absorber.
  • a bodily fluid can be spread
  • the 1st pressing part 33 and the 2nd pressing part 34 are rhombus shape whose dimension of a longitudinal direction is longer than the dimension of the width direction.
  • the force is configured to propagate along the longitudinal direction.
  • the dimension in the width direction of the first squeezing part 33 and the second squeezing part 34 is longer than the dimension in the longitudinal direction, the force for suppressing deformation by the squeezing part is greater in the width direction than in the longitudinal direction. It becomes stronger, and the absorber may not be easily deformed inward in the width direction.
  • FIG. 5 is an enlarged view of the squeezing portion of the absorbent body according to Modification 1 with reference to the portion A shown in FIG. 1.
  • the 1st pressing part 33 and the 2nd pressing part 34 of embodiment are linear which has a fixed width and length
  • the 1st pressing part 33 and the 2nd pressing part 34 of the absorber which concern on the modification 1 are shown.
  • a superabsorbent polymer tends to concentrate on the said part at the time of embossing.
  • the 1st pressing part and the 2nd pressing part of the modification 1 are comprised by the some linear pressing part arrange
  • the shape of a pressing part is dot shape, a heart shape, etc. It may be a symbol and is not limited.
  • the dimension of the clearance gaps 33c and 34c is the same as the space
  • the skin side area, the center area, and the non-skin side area of the absorbent body are all configured to contain pulp and a superabsorbent polymer, but at least one of the skin side area and the non-skin side area is pulp. It may be constituted only by. Moreover, at least any one of the skin side area and the non-skin side area may contain crimped fibers such as curly cellulose fibers, or may be constituted by a bulky nonwoven fabric. Examples of the bulky nonwoven fabric include an airlaid nonwoven fabric and an air-through nonwoven fabric.
  • the dimension of the width direction may be comprised longer than the dimension of a longitudinal direction, and the 1st pressing part and the 2nd pressing part may be comprised. Moreover, the 1st pressing part and the 2nd pressing part may be alternately formed in the longitudinal direction at intervals, and may be formed alternately in the width direction.
  • an absorbent article that can suppress deterioration in wearing feeling while ensuring the absorption performance of the absorber.

Landscapes

  • 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)

Abstract

La présente invention concerne un article absorbant qui est capable de réduire au minimum la détérioration du confort de port tout en assurant les performances d'absorption d'un corps absorbant. L'article absorbant comprend un corps absorbant (30) qui a une région centrale avec une densité de polymère hautement absorbante qui est plus élevée que celle d'une région côté peau et une région non-côté peau, et dans lequel de multiples sections compressées, qui sont compressées dans la direction de l'épaisseur, sont formées. Les sections compressées comprennent des premières sections compressées (33) qui s'étendent dans une première direction d'inclinaison, et des deuxièmes sections compressées (34) qui s'étendent dans une deuxième direction d'inclinaison. Les premières sections compressées (33) et les deuxièmes sections compressées (34) sont formées en continu d'une manière alternée dans la direction longitudinale, et sont alternativement formées à des intervalles dans le sens de la largeur. Des régions non compressées (R1), dans lesquelles les sections compressées ne sont pas formées, sont disposées dans les régions entre les premières sections compressées adjacentes (33) et les deuxièmes sections compressées (34) dans la direction longitudinale, et dans les régions entre les premières sections compressées (33) et deuxièmes sections compressées (34) adjacentes dans le sens de la largeur.
PCT/JP2013/080864 2012-11-20 2013-11-15 Article absorbant WO2014080839A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201380060495.0A CN104797224B (zh) 2012-11-20 2013-11-15 吸收性物品
AU2013348986A AU2013348986B2 (en) 2012-11-20 2013-11-15 Absorbent article

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-253835 2012-11-20
JP2012253835A JP6030930B2 (ja) 2012-11-20 2012-11-20 吸収性物品

Publications (1)

Publication Number Publication Date
WO2014080839A1 true WO2014080839A1 (fr) 2014-05-30

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JP (1) JP6030930B2 (fr)
CN (1) CN104797224B (fr)
AU (1) AU2013348986B2 (fr)
MY (1) MY161716A (fr)
WO (1) WO2014080839A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016214406A (ja) * 2015-05-15 2016-12-22 王子ホールディングス株式会社 吸収性物品
JP2020185319A (ja) * 2019-05-17 2020-11-19 ユニ・チャーム株式会社 吸収性物品
EP3643280A4 (fr) * 2017-09-29 2021-04-21 Daio Paper Corporation Feuille absorbante, et article vestimentaire jetable comprenant ladite feuille absorbante

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JP5800959B1 (ja) * 2014-06-23 2015-10-28 ユニ・チャーム株式会社 使い捨ておむつ
JP6285812B2 (ja) * 2014-06-30 2018-02-28 ユニ・チャーム株式会社 使い捨ておむつ
JP6557004B2 (ja) * 2014-12-10 2019-08-07 王子ホールディングス株式会社 吸収性物品
JP6259539B2 (ja) * 2016-06-03 2018-01-10 花王株式会社 生理用吸収性物品
JP6259540B2 (ja) * 2016-06-03 2018-01-10 花王株式会社 生理用吸収性物品
JP7023045B2 (ja) * 2016-09-30 2022-02-21 ユニ・チャーム株式会社 吸収性物品
JP6876430B2 (ja) * 2016-12-28 2021-05-26 ユニ・チャーム株式会社 吸収性物品
CN107374833A (zh) * 2017-07-13 2017-11-24 杭州豪悦实业有限公司 一种增强型分区式复合芯体
JP6956048B2 (ja) * 2018-06-29 2021-10-27 ユニ・チャーム株式会社 吸収性物品
CN217186765U (zh) * 2021-01-26 2022-08-16 王子控股株式会社 吸收性物品的制造装置及吸收性物品
CN117942225A (zh) * 2022-10-27 2024-04-30 尤妮佳股份有限公司 吸收性物品

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JPS55175418U (fr) * 1979-06-01 1980-12-16
JP2004121382A (ja) * 2002-09-30 2004-04-22 Daio Paper Corp 体液吸収性物品
JP2011234896A (ja) * 2010-05-10 2011-11-24 Daio Paper Corp 使い捨て吸収性物品

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Publication number Priority date Publication date Assignee Title
EP1402864B1 (fr) * 2002-09-30 2012-05-30 Daio Paper Corporation Article absorbant les fluides corporels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55175418U (fr) * 1979-06-01 1980-12-16
JP2004121382A (ja) * 2002-09-30 2004-04-22 Daio Paper Corp 体液吸収性物品
JP2011234896A (ja) * 2010-05-10 2011-11-24 Daio Paper Corp 使い捨て吸収性物品

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016214406A (ja) * 2015-05-15 2016-12-22 王子ホールディングス株式会社 吸収性物品
EP3643280A4 (fr) * 2017-09-29 2021-04-21 Daio Paper Corporation Feuille absorbante, et article vestimentaire jetable comprenant ladite feuille absorbante
JP2020185319A (ja) * 2019-05-17 2020-11-19 ユニ・チャーム株式会社 吸収性物品
WO2020235119A1 (fr) * 2019-05-17 2020-11-26 ユニ・チャーム株式会社 Article absorbant

Also Published As

Publication number Publication date
CN104797224B (zh) 2017-09-01
AU2013348986B2 (en) 2016-11-24
CN104797224A (zh) 2015-07-22
JP6030930B2 (ja) 2016-11-24
MY161716A (en) 2017-05-15
AU2013348986A1 (en) 2015-05-14
JP2014100262A (ja) 2014-06-05

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