WO2021090556A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2021090556A1
WO2021090556A1 PCT/JP2020/032452 JP2020032452W WO2021090556A1 WO 2021090556 A1 WO2021090556 A1 WO 2021090556A1 JP 2020032452 W JP2020032452 W JP 2020032452W WO 2021090556 A1 WO2021090556 A1 WO 2021090556A1
Authority
WO
WIPO (PCT)
Prior art keywords
pair
longitudinal direction
width direction
absorbent article
absorber
Prior art date
Application number
PCT/JP2020/032452
Other languages
English (en)
Japanese (ja)
Inventor
幹彦 多田
翔士 ▲高▼阪
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 CN202080075775.9A priority Critical patent/CN114667124B/zh
Publication of WO2021090556A1 publication Critical patent/WO2021090556A1/fr

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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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • 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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/532—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 inhomogeneous in the plane 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
    • A61F13/534—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 an inhomogeneous 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
    • A61F13/534—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 an inhomogeneous composition through the thickness of the pad
    • A61F13/535—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 an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
    • 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
    • A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • 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
    • A61F13/56—Supporting or fastening means

Definitions

  • the present invention relates to absorbent articles such as light incontinence pads, sanitary napkins, and disposable diapers.
  • Absorbent items such as light incontinence pads, sanitary napkins, and disposable diapers are worn for a long time while in contact with the wearer's crotch area, so that the wearer does not feel uncomfortable or uncomfortable. , It is required to quickly absorb excrement discharged from the wearer and to have an excellent fit to the wearer's body.
  • Patent Document 1 provides an absorbent article having an absorbent core, wherein the absorbent core includes a central region and side regions located on both sides in the width direction thereof, and the central region and the central region thereof.
  • an object of the present invention is to provide an absorbent article having excellent fit, which does not easily cause discomfort to the wearer even during movements such as walking.
  • One aspect (aspect 1) of the present invention is a longitudinal direction, comprising a front surface sheet forming a skin facing surface, a back surface sheet forming a non-skin facing surface, and an absorber located between these sheets.
  • An absorbent article having a width direction and a thickness direction.
  • the absorber is viewed in a plan view.
  • At least a pair of bending guides arranged symmetrically with respect to the widthwise center line extending in the longitudinal direction. It has at least a pair of recesses extending in the longitudinal direction, which are located on the inner side in the width direction of the pair of bending guide portions and are arranged symmetrically with respect to the center line in the width direction.
  • Each of the pair of bending guides extends inward in the width direction from the widthwise edge of the absorber, and extends inward in the longitudinal direction as it goes inward in the width direction.
  • the absorbent article characterized in that it is.
  • the bending guide portion that functions as the bending base point of the absorber extends inward in the width direction from the widthwise edge of the absorber and toward the inward side in the width direction. Since it extends inward in the longitudinal direction, even during movements such as walking by the wearer (specifically, the direction in which the absorbent article is twisted alternately left and right with respect to the longitudinal direction).
  • the absorber, and thus the absorbent article is easily deformed according to the wearer's movement (even when a force is applied), and the action of such a bending guide portion is simply referred to as "following deformation action". It is less likely to cause discomfort to the wearer.
  • the absorber since the absorber has a pair of recesses extending in the longitudinal direction at a position on the inner side in the width direction of the bending guide portion, the above-mentioned folding is performed during the operation of the wearer. Even if a force is applied to the absorbent article through the bending guide portion in a direction in which the article is twisted alternately left and right with respect to the longitudinal direction, the force can be dispersed by a pair of recesses extending in the longitudinal direction, and the pair of recesses can be dispersed.
  • the portion on the inner side in the width direction, that is, the central portion in the width direction of the absorber can be made less likely to be deformed.
  • the central portion in the width direction of the absorber can be accurately brought into close contact with the crotch portion of the wearer. It is possible to demonstrate excellent fit even during the operation of. From the above, the absorbent article of the first aspect is less likely to cause discomfort to the wearer even during movements such as walking, and can exhibit excellent fit.
  • the at least pair of bending guide portions is in the longitudinal direction with respect to the longitudinal center line extending in the width direction.
  • a pair of bending guides located on one side and a pair of bending guides located on the other side in the longitudinal direction are included.
  • the pair of bending guides located on one side in the longitudinal direction and the pair of bending guides located on the other side in the longitudinal direction are arranged so as to be symmetrical with respect to the center line in the longitudinal direction. It is characterized by being.
  • the pair of bending guides located on one side in the longitudinal direction and the pair of bending guides located on the other side in the longitudinal direction are symmetrical with respect to the center line in the longitudinal direction. Therefore, during the movement of the wearer, the follow-up deformation action by the above-mentioned bending guide portion can be exerted over a wide range in the longitudinal direction of the absorbent article.
  • the at least pair of bending guides are located on one side of the width direction with respect to the width direction center line.
  • the virtual extension line of the bending guide portion and the virtual extension line of the bending guidance portion located on the other side in the width direction with respect to the center line in the width direction are arranged so as not to overlap on the same straight line. It is characterized by that.
  • At least a pair of bending guide portions are located on one side in the width direction as a virtual extension line of the bending guidance portion and the other side in the width direction with respect to the center line in the width direction. Since the virtual extension lines of the bending guides located at are arranged so as not to overlap on the same straight line, a bending base point can be formed for each bending guide, and the absorbers are more diverse. In addition to being able to easily deform into a shape, even if the above-mentioned twisting force is applied to the central portion in the width direction of the absorber via the bending guide portion during the movement of the wearer, the width direction is concerned. It is difficult to form a bending base point in the central portion, and it is possible to make it more difficult for the bending in the central portion in the width direction of the absorber to occur.
  • the absorber in any of the absorbent articles of aspects 1 to 3, is interposed with the surface sheet or intermediate sheet located on the skin-facing surface side via an adhesive layer.
  • the adhesive layer is characterized in that it extends in the longitudinal direction while having a portion intersecting with a virtual line parallel to the longitudinal direction in a plan view.
  • the absorbent article of the fourth aspect since the absorbent body is bonded to the surface sheet or the intermediate sheet located on the skin facing surface side via the adhesive layer, the absorbent body does not easily lose its shape even during the movement of the wearer. , Can demonstrate better fit. Further, the absorbent article of the fourth aspect extends in the longitudinal direction while having a portion where the above-mentioned adhesive layer intersects the longitudinal direction in a plan view (for example, a spiral shape along the longitudinal direction, Since it is arranged in the form of an omega, etc.), absorption inhibition by the adhesive layer is unlikely to occur, and even during the above-mentioned operation in which a force in the twisting direction is applied, the follow-up deformation action by the bending guide portion is inhibited. Instead, the absorbent article can be deformed by accurately following the movement of the wearer.
  • the absorbent article in any of the absorbent articles of the above aspects 1 to 4, is absorbed on the skin-facing surface side at a position on the skin-facing surface side of the absorber.
  • the absorbent article of the fifth aspect has the pair of bending guides in the absorbent body in which the length in the width direction of the portion overlapping the pair of bending guides in the skin-facing surface side absorption layer in the thickness direction. Since it is larger than the width direction of the portion, it is possible to prevent twisting due to the above-mentioned deformation of the bending guide portion before the excrement liquid such as urine is supplied from the wearer. As a result, the absorbent article of the fifth aspect can exhibit a better fit and can prevent the excrement liquid from leaking due to twisting.
  • the skin-facing surface side absorbing layer contains at least an absorbent polymer.
  • the skin facing surface side absorbing layer contains at least an absorbent polymer
  • the skin facing surface side absorbing layer is the excretory liquid when excretion liquid such as urine is supplied from the wearer. Can be absorbed and expanded to make it more difficult for the absorber located on the non-skin facing surface side of the skin facing surface side absorbing layer to be twisted.
  • the absorbent article of the sixth aspect can easily maintain an excellent fit even after excretion by the wearer, and can prevent the excrement liquid from leaking due to twisting.
  • each of the pair of bending guides is an end on the inner side in the width direction in a plan view. It is characterized in that the portion communicates with the pair of recesses.
  • the absorbent article of the present aspect 7 since the end portion on the inner side in the width direction of the pair of bending guide portions communicates with the pair of recesses, the absorbent article is transmitted through the bending guide portion during the wearer's operation.
  • the force in the twisting direction can be more easily dispersed in the pair of recesses, and the central portion in the width direction of the absorber can be made more difficult to be deformed.
  • the absorbent article has at least two fold lines extending in the width direction in a plan view. Have and Each of the pair of bending guide portions is arranged so as not to intersect the folding line.
  • the absorbent article of the eighth aspect has at least two fold lines extending in the width direction, and each of the pair of fold guides is arranged so as not to intersect these fold lines, and thus absorbs. Since it is possible to fold a sex article compactly, it is possible to make it excellent in storage and portability, and it is possible to form a bending base point using creases due to fold lines, the above-mentioned pair of folds can be formed. It is possible to easily deform the absorbent article into a wider variety of shapes without inhibiting the follow-up deformation action of the bending guide portion.
  • the absorbent article in any of the absorbent articles of the above aspects 1 to 8, is an adhesive portion arranged on the surface of the back surface sheet on the non-skin facing surface side.
  • Have and Each of the pair of bending guide portions is arranged so as not to overlap or partially overlap with the adhesive portion in the thickness direction.
  • the absorbent article of the ninth aspect has an adhesive portion for fixing to clothing such as the wearer's underwear, and each of the pair of bending guide portions does not completely overlap the adhesive portion in the thickness direction. Since it is arranged in such a manner, the absorbent article can be fixed to the wearer's clothes without hindering the follow-up deformation action by the pair of bending guides described above, and the excellent fit is more stable. Can be demonstrated.
  • the adhesive portion is located at least on the outer side in the longitudinal direction from the pair of bending guide portions in a plan view. It is characterized by being arranged.
  • the adhesive portion is arranged at least at a position on the outer side in the longitudinal direction from the bending guide portion, even if the above-mentioned bending guiding portion functions as a bending base point, the folding The portion of the bending guide portion on the outer side in the longitudinal direction can be steadily fixed to the wearer's clothing, and it is possible to prevent the absorbent article from being rolled up or peeled off during wearing.
  • the absorbent articles are located at both ends in the width direction and in the longitudinal direction in a plan view.
  • a pair of side sheets arranged on the surface of the surface sheet facing the skin so as to extend in the direction, and an elastic member fixed to each of the pair of side sheets and extending in the longitudinal direction are included. It also has a pair of leak-proof walls, The elastic member is characterized in that the fixed end in the longitudinal direction is located on the outer side in the longitudinal direction with respect to the virtual extension line of the pair of bending guide portions.
  • the longitudinal fixed end of the elastic member is located on the outer side in the longitudinal direction with respect to the virtual extension line of the pair of bending guide portions, and the outer side in the longitudinal direction of the bending guide portion. Since the leak-proof wall portion can be formed up to, the above-mentioned bending guide portion functions as a bending base point during wearing, and even if the absorbent article is deformed according to the wearer's movement, the excrement liquid leaks. Can be less likely to occur.
  • the absorber in any of the absorbent articles of aspects 1 to 11, has a relative length in the width direction to the central portion in the longitudinal direction in a plan view. It has a small constriction and Each of the pair of bending guide portions is arranged in the constricted portion.
  • the bending guide portion is arranged in the constricted portion corresponding to the circumference of the wearer's leg, the bending guide portion is deformed according to the movement of the wearer's leg. It is easy and more accurately the above-mentioned follow-up deformation action can be exhibited.
  • each of the pair of bending guide portions has an end portion on the lateral side in the width direction outward in the longitudinal direction of the constricted portion. Located between the maximum width portion having the maximum width of the absorber on the side and the minimum width portion having the minimum width of the absorber in the constricted portion, and between the maximum width portion and the minimum width portion. It is characterized in that it is located on the outer side in the longitudinal direction from the intermediate position in the longitudinal direction.
  • the end portion on the outer side in the width direction of the bending guide portion is located at the specific portion, the bending guidance is performed even when the wearer's leg movement is large.
  • the portion can be accurately deformed according to its movement, and the effect of the above-described aspect 12 can be more stably and surely exhibited.
  • FIG. 1 is a plan view of the light incontinence pad 1 according to the embodiment of the absorbent article of the present invention as viewed from the surface sheet 2 side in the thickness direction T.
  • FIG. 2 is a plan view of the light incontinence pad 1 viewed from the back surface sheet 3 side in the thickness direction T in the unfolded state.
  • FIG. 3 is an enlarged end view of a main part of the cross section of the light incontinence pad 1 shown in FIG. 1 along the line III-III.
  • FIG. 4 is a plan view of the light incontinence pad 1 in a state where the absorber 4 is unfolded and viewed from the skin facing surface side in the thickness direction T.
  • FIG. 5 is a perspective view schematically showing how the light incontinence pad 1 is bent and deformed at the bending guide portions 51 to 54.
  • FIG. 6 is a plan view schematically showing an arrangement form of the adhesive layer H arranged on the skin facing surface side of the absorber 4.
  • FIG. 7 is a plan view of the light incontinence pad 1'according to another embodiment of the absorbent article of the present invention as viewed from the surface sheet 2 side in the thickness direction T.
  • FIG. 8 is a plan view of the light incontinence pad 1'when the absorber 4'is unfolded and viewed from the skin facing surface side in the thickness direction T.
  • an object placed on a horizontal plane in an unfolded state for example, a light incontinence pad, an absorber, etc.
  • the object is light incontinence
  • planar view viewing in the thickness direction of the object from the front sheet side or the back sheet side
  • the various directions and the like used in the present specification are as follows.
  • the "longitudinal direction” refers to "the long direction of a vertically long object (for example, a light incontinence pad in a deployed state, an absorber, etc.) in a plan view”
  • the "width direction” is defined as “width direction”. It refers to the “short direction of the length of a vertically long object in a plan view”
  • the “thickness direction” refers to the "direction perpendicular to an object placed on a horizontal plane in an unfolded state", and these longitudinal directions.
  • the width direction and the thickness direction are orthogonal to each other.
  • the "virtual line located at the center of the vertically long object in the width direction and extending in the longitudinal direction” is referred to as “width direction center line CL ", and is referred to as "center of the vertically long object in the longitudinal direction”.
  • the “virtual line located at and extending in the width direction” is referred to as “longitudinal center line C W ".
  • the side relatively proximal to the center line C W in the longitudinal direction is referred to as “the inward side in the longitudinal direction", and "the length of the vertically elongated object”.
  • the "distal side relative to the longitudinal center line C W " is referred to as the "longitudinal outward side”.
  • relatively proximal side with respect to the width direction center line C L refers to the “width direction inner side” in the width direction of the "elongated object, relatively distal “and the width direction center line C L of" width direction outer side ".
  • the side relatively proximal to the wearer's skin surface is referred to as “skin facing surface”.
  • the side is called the “side”
  • the “distal side relative to the wearer's skin surface when wearing the light incontinence pad” is called the "non-skin facing side”.
  • the two surfaces facing the skin facing surface side and the non-skin facing surface side in the thickness direction are referred to as a skin facing surface and a non-skin facing surface, respectively, and the front surface sheet and the back surface.
  • the two surfaces facing the skin facing surface side and the non-skin facing surface side in the thickness direction are referred to as a skin facing surface side surface and a non-skin facing surface side surface, respectively.
  • the light incontinence pad 1 As shown in FIGS. 1 and 2, the light incontinence pad 1 according to the embodiment of the present invention has a longitudinal direction L and a width direction W in a plan view, and two longitudinal end edges are in the longitudinal direction. It has a vertically long outer shape that protrudes in an arc shape toward the outside.
  • the external shape of the light incontinence pad 1 is not limited to such a mode, and any shape (for example, oval shape, hourglass shape, gourd shape) according to various uses, usage modes, etc., as long as it is a vertically long shape. Shape etc.) can be adopted.
  • the above-mentioned light incontinence pad 1 has a liquid-permeable front surface sheet 2 that forms a skin-facing surface of the light incontinence pad 1 and a back surface sheet that forms a non-skin-facing surface of the light incontinence pad 1 in the thickness direction T. 3 and an absorber 4 located between these sheets are provided as a basic configuration. Further, in the above-mentioned light incontinence pad 1, as shown in FIGS. 1 to 3, a plurality of granular absorbent polymers arranged between the surface sheet 2 and the absorber 4 and a hydrophilic non-woven fabric wrapping the polymer are used.
  • Each of the side sheets 91 and 92 of the above is further provided with a plurality of elastic members 93 and 94 arranged along the longitudinal direction L.
  • the pair of side seats 91, 92 and the elastic members 93, 94 are elastic when the light incontinence pad 1 is attached to the inner surface of the wearer's clothing (that is, when the light incontinence pad 1 is curved in the longitudinal direction L).
  • the members 93, 94 contract the pair of side sheets 91, 92 in the longitudinal direction L, and the end edge portion on the inner side in the width direction of the pair of side sheets 91, 92 stands up, and the pair of leak-proof wall portions 9 , 9 can be formed.
  • the light incontinence pad 1 has a light incontinence pad 1 placed between one side edge and the other side edge of the light incontinence pad 1 in the longitudinal direction L in a plan view. Since it has a first fold line FL 1 and a second fold line FL 2 extending in the width direction W for folding in the longitudinal direction L with 2 inside, it can be folded compactly, and is storable and portable. It is excellent for such things.
  • the absorber 4 in plan view as shown in FIGS. 1 to 4, across the width direction center line C L extending in the longitudinal direction L of the light incontinence pad 1
  • Two pairs of relatively low-rigidity bending guides 51 to 54 which are arranged symmetrically with each other and are recessed in the thickness direction T from the surface on the non-skin facing surface side toward the surface on the skin facing surface side.
  • these two pairs of bending guide portions 51 to 54 are located on the inward side in the width direction and are arranged so as to extend in the longitudinal direction L so as to be symmetrical with the width direction center line CL in between, and are non-skin facing.
  • each of the above-mentioned bending guide portions 51 to 54 extends inward in the width direction from the widthwise end edges 4W 1 , 4W 2 of the absorber 4, and is inward in the width direction. As it goes toward the side, it extends toward the inward side in the longitudinal direction.
  • the guide portions 53 and 54 are arranged so as to be symmetrical with respect to the longitudinal center line C W extending in the width direction W.
  • At least a pair of bending guide portions 51, 52 functioning as a bending base point of the absorber 4 as shown in FIG. 5 have widths from the widthwise end edges 4W 1 , 4W 2 of the absorber 4. Since it extends inward in the direction and extends inward in the longitudinal direction toward the inward side in the width direction, it extends toward the inward side in the longitudinal direction even during movements such as when the wearer is walking (specifically, when the wearer is walking).
  • the absorber 4 and, by extension, the light incontinence pad 1 are deformed according to the wearer's movements (even when a force is applied to the light incontinence pad 1 in the direction of alternately twisting left and right with respect to the longitudinal direction L). It is easy to do (that is, it has a follow-up deformation action), and it is difficult for the wearer to feel uncomfortable. Further, the light incontinence pad 1 has a pair of recesses 61 and 62 extending in the longitudinal direction L at positions on the inner side in the width direction of the bending guide portions 51 and 52 in the absorber 4, so that the wearer can operate the pad 1.
  • a pair of recesses extending in the longitudinal direction L.
  • the force can be dispersed by the 61 and 62, and the portion on the inner side in the width direction of the pair of recesses 61 and 62, that is, the central portion in the width direction of the absorber 4 can be made less likely to be deformed.
  • the light incontinence pad 1 can accurately bring the central portion of the absorber 4 in the width direction into close contact with the crotch portion of the wearer, in addition to the follow-up deformation action of at least the pair of bending guide portions 51 and 52 described above. Therefore, excellent fit can be exhibited even when the wearer is in motion. Therefore, the light incontinence pad 1 is less likely to cause discomfort to the wearer even during movements such as walking, and can exhibit excellent fit.
  • the symmetrical across the width direction center line C L extending in the longitudinal direction L which means that it is axisymmetrical width direction center line C L as a symmetrical axis.
  • a pair of compression portions E 1, E 2 extending in the longitudinal direction L so as to be symmetrical with respect to the width direction center line C L, the pair squeeze portion E 1, E located between 2 and longitudinal center line C W across the extending in the width direction W in a circular arc shape to be symmetrical pair of compression portions E 3, and E 4, light incontinence pad It further has a round seal portion R s that extends continuously along the outer peripheral edge portion of 1.
  • the pair of squeezed portions E 1 and E 2 are formed at positions and shapes overlapping the pair of recesses 61 and 62 in a plan view, as shown in FIG.
  • the above-mentioned squeezed portions E 1 to E 4 are formed so as to be recessed in the thickness direction T from the surface of the front surface sheet 2 on the skin-facing surface side toward the back surface sheet 3, and are embossed or the like.
  • the surface sheet 2, the skin-facing surface side absorbing layer 7, and the absorber 4 are formed by being squeezed in the thickness direction T from the skin-facing surface side toward the non-skin-facing surface side by the processing means.
  • compression portions E 1 ⁇ E 4 are not particularly limited, may be employed desired liquid diffusibility and deformation-induced, any shape depending on the intensity. To begin with light incontinence pad 1, it may not have such a compression portions E 1 ⁇ E 4.
  • the surface sheet 2 extends from one side edge of the light incontinence pad 1 in the longitudinal direction L to the other side edge in a plan view, and is light.
  • the incontinence pad 1 has a vertically long outer shape extending from the vicinity of one side edge of the width direction W to the vicinity of the other side edge.
  • the surface sheet 2 is arranged at a position on the skin-facing surface side in the thickness direction T of the light incontinence pad 1, and forms a contact surface that can come into contact with the wearer's skin, that is, a skin-facing surface of the light incontinence pad 1. It is composed of a liquid-permeable sheet-like member.
  • the surface sheet 2 has a size slightly larger in the longitudinal direction L and the width direction W than the absorber 4 arranged on the non-skin facing surface side of the surface sheet 2.
  • a pair of side sheets 91 and 92 are joined to the surfaces of both ends in the width direction W on the skin-facing surface side.
  • the liquid-permeable sheet-like member that can be used as the surface sheet 2 is particularly limited as long as it has various properties that can be used as the surface sheet of the light incontinence pad (for example, liquid permeability, touch, flexibility, strength, etc.).
  • non-woven fabrics such as air-through non-woven fabrics, spunlace non-woven fabrics, spunbonded non-woven fabrics, and point-bonded non-woven fabrics, and arbitrary liquid-permeable sheet-like members such as porous resin films can be used.
  • the non-woven fabric When a non-woven fabric is used as the surface sheet, the non-woven fabric may have a single-layer structure or a multi-layer structure of two or more layers.
  • the type of constituent fibers of the non-woven fabric is not particularly limited, and examples thereof include hydrophilic fibers such as cellulosic fibers and thermoplastic resin fibers subjected to a hydrophilization treatment. These fibers may be used alone or in combination of two or more kinds of fibers.
  • examples of the cellulosic fibers that can be used as the constituent fibers of the non-woven fabric include natural cellulose fibers (for example, plant fibers such as cotton), regenerated cellulose fibers, purified cellulose fibers, and semi-synthetic cellulose fibers.
  • examples of the thermoplastic resin fibers that can be used as the constituent fibers of the non-woven fabric include olefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), and polyamides such as 6-nylon.
  • examples thereof include fibers made of known thermoplastic resins such as based resins. These resins may be used alone or in combination of two or more kinds of resins.
  • the structure of the liquid-permeable sheet-like member used as the surface sheet 2 is not particularly limited as long as it does not impede the effect of the present invention, and even if it has an overall flat sheet-like structure, it may be used. It may have a concavo-convex structure having a plurality of ridges and grooves extending in the longitudinal direction or the width direction (for example, a concavo-convex structure having a corrugated cross-sectional shape, a ridged groove structure, or the like).
  • each of the plurality of ridges in the concavo-convex structure has a hollow internal structure even if it has a solid internal structure. You may be doing it.
  • An arbitrary agent such as a plant-derived extract or a skin care agent may be applied to the surface of the surface sheet 2 on the skin-facing surface side, and a predetermined liquid may be applied to the non-skin-facing surface side of the surface sheet 2.
  • An intermediate sheet having diffusivity and liquid permeability may be arranged.
  • the outer shape, various dimensions, basis weight, etc. of the surface sheet are not particularly limited as long as they can be used as the surface sheet of the absorbent article, and the desired liquid permeability, touch, flexibility, strength, etc. can be obtained. Any shape, various dimensions, basis weight, etc. can be adopted according to the situation.
  • the back surface sheet 3 extends from one side edge of the light incontinence pad 1 in the longitudinal direction L to the other side edge in a plan view, and is light.
  • the incontinence pad 1 has a vertically long outer shape extending from one side edge of the width direction W to the other side edge.
  • the back sheet 3 is arranged at a position on the non-skin facing surface side in the thickness direction T of the light incontinence pad 1 to form the non-skin facing surface of the light incontinence pad 1 and absorb the light incontinence pad 1. It is composed of a liquid-impermeable sheet-like member that prevents excrement liquid such as urine that has permeated the body 4 from leaking to the outside of the light incontinence pad 1.
  • An adhesive portion 8 for adhesively fixing the light incontinence pad 1 to the inner surface of clothing such as the wearer's underwear is arranged on the surface of the back sheet 3 on the non-skin facing surface side.
  • the liquid-impermeable sheet-like member that can be used as the back sheet 3 is not particularly limited as long as it can prevent the permeation of excrement liquid such as urine discharged from the wearer.
  • a hydrophobic thermoplastic resin for example, polyolefin-based resin fiber, polyester-based resin fiber, various composite fibers such as core-sheath type composite fiber, etc.
  • a perforated or non-perforated resin film a laminated body in which a non-woven fabric is bonded to the resin film; a known liquid-impermeable sheet-like member such as a laminated non-woven fabric such as an SMS non-woven fabric can be adopted.
  • a leak-proof sheet formed of a thermoplastic resin film such as polyethylene may be arranged on the skin-facing surface side of the back sheet 3.
  • the outer shape, various dimensions, basis weight, etc. of the back sheet are not particularly limited as long as they can be used as the back sheet of the absorbent article, and can be adjusted to the desired leakage-proof performance, breathability, strength, and the like. Any shape, various dimensions, basis weight, etc. can be adopted.
  • the absorber 4 is one side of the light incontinence pad 1 in the longitudinal direction L with the central portion in the longitudinal direction L and the width direction W as the center in a plan view. It extends over a wide area in the longitudinal direction L from the vicinity of the edge to the vicinity of the other side edge, and also in the width direction W, it extends from the vicinity of one side edge of the width direction W to the vicinity of the other side edge. It extends and has a vertically long outer shape in which two longitudinal end edges project in an arc shape toward the outward side in the longitudinal direction.
  • the absorber 4 has a constricted portion 41 having a length in the width direction relatively smaller than other portions in the central portion in the longitudinal direction in a plan view, and further, the absorber 41 in the constricted portion 41. It has a minimum width portion 42 having the minimum width of 4 and maximum width portions 43, 43 having the maximum width of the absorber 4 on the outer side in the longitudinal direction of the constricted portion 41.
  • the absorber 4 is located between the front surface sheet 2 and the back surface sheet 3 (more specifically, on the non-skin facing surface side of the front surface sheet 2) in the thickness direction T of the light incontinence pad 1. (Between the located skin-facing surface side absorption layer 7 and the back surface sheet 3), it absorbs and retains excrement such as urine of the wearer who has permeated the front surface sheet 2 and the skin facing surface side absorption layer 7. It is formed by a predetermined water-absorbent member.
  • the absorber 4 is bonded to the skin-facing surface side absorbing layer 7 on the skin-facing surface side and the back surface sheet 3 on the non-skin-facing surface side, respectively, with an arbitrary adhesive such as a hot melt type adhesive.
  • an arbitrary adhesive such as a hot melt type adhesive.
  • the adhesive layer H formed by such an adhesive will be described later.
  • the water-absorbent member that can be used as the absorber 4 is not particularly limited as long as it can absorb and retain excrement liquid such as urine discharged from the wearer, and is made of a water-absorbent material known in the art.
  • a water-absorbent member can be adopted.
  • the water-absorbent material constituting such a water-absorbent member include hydrophilic fibers and highly absorbent polymers, and more specifically, cellulosic fibers such as crushed pulp, cotton, rayon, and acetate; Granules made of a highly absorbent polymer such as a sodium acrylate copolymer; a mixture of any combination of these can be mentioned.
  • the absorber 4 may be covered with a wrap sheet such as a hydrophilic tissue.
  • the absorbent body 4 in plan view as shown in FIG. 1, arranged so as to be symmetrical with respect to the width direction center line C L extending in the longitudinal direction L of the light incontinence pad 1, the non-skin-facing surface It has two pairs of relatively low-rigidity bending guide portions 51 to 54 that are recessed in the thickness direction T from the side surface toward the surface facing the skin.
  • Each of the bending guide portions 51 to 54 extends inward in the width direction from the widthwise edge 4W 1 , 4W 2 of the absorber 4, and inward in the longitudinal direction as it goes inward in the width direction. It extends toward the side.
  • the number of bending guides arranged is not limited to that of the light incontinence pad 1 of the above-described embodiment (that is, two pairs) as long as it is at least one pair, and the bending guides are absorbers. Only one pair may be formed in, or three or more pairs may be formed. In this way, at least a pair of bending guide portions that function as bending base points of the absorber are formed, and further, the pair of bending guide portions extend inward in the width direction from the widthwise edge of the absorber. Moreover, if it extends inward in the longitudinal direction as it goes inward in the width direction, the absorber, and thus the absorbent article, follows the movement of the wearer even during movements such as walking by the wearer. Therefore, it becomes easy to be deformed, and it is possible to make it difficult for the wearer to feel uncomfortable.
  • the form of the bending guiding portion is not particularly limited as long as it can promote the bending deformation as described above in the absorber, and the bending guiding portion is formed by reducing the basis weight of the water-absorbent material.
  • a low rigidity with relatively low rigidity such as a penetrating or non-penetrating slit portion or a squeezing groove portion formed by squeezing an absorber in the thickness direction by embossing or the like. It can be formed by a rigid portion.
  • the surface of the absorber forming the bending guide portion (that is, the surface on the skin facing surface side and the surface on the non-skin facing surface side) is particularly limited as long as it can promote the bending deformation as described above.
  • the bending guide portion is not limited, and even if the bending guide portion is formed so as to be recessed in the thickness direction from the surface of the absorber on the non-skin facing surface side to the surface on the skin facing surface side like the above-mentioned light incontinence pad 1. , Even if it is formed so as to be recessed in the thickness direction from the surface of the absorber on the skin-facing surface side toward the surface on the non-skin-facing surface side, or from both surfaces of the absorber toward the surfaces opposite to each other. It may be formed so as to be recessed in the longitudinal direction.
  • the bending guide portion extends from the widthwise edge of the absorber toward the inward side in the width direction, and extends toward the inward side in the longitudinal direction as it goes toward the inward side in the width direction.
  • the extending form is not particularly limited, and the bending guide portion may extend, for example, in a linear shape, a dotted line shape, and / or a curved shape, or may extend while forming a single or a plurality of branches.
  • the arrangement position of at least a pair of bending guide portions is not particularly limited as long as the effect of the present invention is not impaired, but when the wearer wears the absorbent article, it is located on one side in the longitudinal direction corresponding to the wearer's buttocks. It is preferable that at least a pair of bending guide portions are arranged, and more preferably at least one pair is arranged on each of one side and the other side of the longitudinal direction L.
  • the two pairs of bending guide portions 51 to 54 are in the longitudinal direction with respect to the longitudinal center line C W extending in the width direction W as shown in FIGS. 1 and 4. It includes a pair of bending guides 51 and 52 located on one side of L and a pair of bending guides 53 and 54 located on the other side of L in the longitudinal direction, and further includes one side of L in the longitudinal direction.
  • the pair of bending guide portions 51 and 52 located at the above and the pair of bending guide portions 53 and 54 located on the other side of the longitudinal direction L are arranged so as to be symmetrical with respect to the longitudinal center line C W. Has been done.
  • the absorbent article of the present invention it is not an essential component to arrange at least a pair of bending guide portions in this way, but in the absorbent article, at least a pair of bending guide portions extend in the width direction. It includes a pair of bending guides located on one side in the longitudinal direction and a pair of bending guides located on the other side in the longitudinal direction with respect to the center line of the direction, and is further located on one side in the longitudinal direction. It is preferable that the pair of bending guide portions and the pair of bending guide portions located on the other side in the longitudinal direction are arranged symmetrically with respect to the center line in the longitudinal direction.
  • a virtual extension line 51L of a fold induction unit 51 located on one side in the width direction W, the virtual extension line 52L of a fold induction unit 52 located on the other side in the width direction W with respect to the width direction center line C L Are arranged so that they do not overlap on the same straight line.
  • the virtual extension line of the pair of bent leading portion 53 also, the guiding section 53 bent Ori positioned on one side in the width direction W with respect to the width direction center line C L which is positioned on the other side of the longitudinal direction L and 53L, and a virtual extension line 54L of a fold induction unit 54 located on the other side in the width direction W are arranged so as not to overlap on the same straight line with respect to the width direction center line C L.
  • the virtual extension line of the bending guide portion is a virtual line that overlaps with and extends the center line of the bending guidance portion in a plan view, and each of the above-mentioned virtual extension lines 51L to 54L is linear. It is a virtual straight line that overlaps with the center line of the bending guide portions 51 to 54.
  • At least a pair of bending guides are in the width direction with respect to the center line in the width direction.
  • the virtual extension line of the bending guide located on one side and the virtual extension line of the bending guide located on the other side in the width direction with respect to the center line in the width direction are arranged so as not to overlap on the same straight line. Is preferable.
  • each of the pair of bending guide portions 51 and 52 located on one side of the longitudinal direction L is inward in the width direction in a plan view as shown in FIG.
  • the ends 51E and 52E of the above communicate with the pair of recesses 61 and 62, respectively.
  • the end portions 53E and 54E on the inner side in the width direction are the pair of recesses 61 and 62, respectively, in a plan view. Communicating.
  • At least a pair of bending guides are provided at the inner end in the width direction of each. Is preferably in communication with the pair of recesses.
  • the above-mentioned light incontinence pad 1 has two folding lines FL 1 and FL 2 extending in the width direction W in a plan view, and has two pairs of bending guiding portions 51 to 54 described above. As shown in FIG. 1, each is arranged so as not to intersect the two folding lines FL 1 and FL 2.
  • the absorbent article has at least two fold lines extending in the width direction and each of the pair of bend guides. Is preferably arranged so as not to intersect these fold lines.
  • the absorbent article can be folded compactly, and can be excellent in storage and portability, and can be bent by using creases due to fold lines. Since the base point can be formed, the absorbent article can be easily deformed into a wider variety of shapes without impeding the follow-up deformation action of the pair of bending guides described above.
  • the folding form of the absorbent article, the position of each folding line, the number of folding lines, etc. are not particularly limited as long as the effects of the present invention are not impaired.
  • the absorbent article may have one fold line extending in the width direction, may have two or more arbitrary number of fold lines, or may have fold lines extending in the width direction. You do not have to have it.
  • the absorber 4 is located on the inward side in the width direction of the above-mentioned bending guide portions 51 to 54 in a plan view, and is symmetrical with the width direction center line CL in between.
  • the pair of recesses 61 and 62 are arranged so that the distance between the recess 61 on one side in the width direction W and the recess 62 on the other side is 1/4 or more of the length in the width direction of the absorber 4.
  • the length in the longitudinal direction extends in the longitudinal direction L so as to be 1/10 or more of the length in the longitudinal direction of the absorber 4.
  • the number of recesses located on the inner side in the width direction of the bending guide portion is not particularly limited as long as it is at least one pair, and only one pair of recesses extending in the longitudinal direction is formed in the absorber. Alternatively, two or more pairs may be formed.
  • the wearer when the absorber has at least a pair of recesses extending in the longitudinal direction at the position on the inner side in the width direction of the bending guide portion, the wearer operates through the above-mentioned bending guidance portion. Even if a force is applied to the absorbent article in a direction in which it is twisted alternately left and right with respect to the longitudinal direction, the force can be dispersed by at least a pair of recesses extending in the longitudinal direction, and the force can be dispersed within the width direction of the pair of recesses.
  • the lateral portion that is, the central portion in the width direction of the absorber can be made difficult to deform.
  • the central portion in the width direction of the absorber can be accurately brought into close contact with the crotch portion of the wearer. Excellent fit can be exhibited even during operation.
  • the form of the recess extending in the longitudinal direction is not particularly limited as long as the force transmitted from the bending guide portion can be dispersed in the longitudinal direction, and the recess extending in the longitudinal direction reduces the basis weight of the water-absorbent material.
  • the low basis weight portion that is recessed in the thickness direction for example, a penetrating or non-penetrating slit portion or a squeezing groove portion formed by squeezing an absorber in the thickness direction by embossing or the like, which has relatively low rigidity. It can be formed by recesses.
  • the force transmitted from the bending guide portion as described above is applied in the longitudinal direction.
  • the recess extending in the longitudinal direction is not particularly limited as long as it can be dispersed in the skin, and the recess extending in the longitudinal direction is thickened from the surface of the absorber on the non-skin facing surface side to the surface on the skin facing surface side like the above-mentioned light incontinence pad 1.
  • It may be formed to be recessed in the longitudinal direction, it may be formed to be recessed in the thickness direction from the surface of the absorber on the skin-facing surface side toward the surface on the non-skin-facing surface side, or both surfaces of the absorber. It may be formed so as to be recessed in the thickness direction toward the surfaces opposite to each other.
  • At least a pair of recesses extending in the longitudinal direction are located inward in the width direction of the above-mentioned bending guide portion in a plan view and extend in the longitudinal direction so as to be symmetrical with respect to the center line in the width direction.
  • the extending form is not particularly limited, and each of the pair of recesses extending in the longitudinal direction forms a single or a plurality of branches even if they extend linearly, dottedly and / or curvedly, for example. However, it may be extended.
  • the arrangement position of at least a pair of recesses extending in the longitudinal direction is not particularly limited as long as the effect of the present invention is not impaired, but the area where the wearer's excretory opening can come into contact when the wearer wears the absorbent article. Is preferably located on the outer side in the width direction and is arranged so as to extend longer in the longitudinal direction than the region.
  • the absorber 4 has a constricted portion 41 having a relatively small width direction in the central portion in the longitudinal direction in a plan view. This makes it easier for the light incontinence pad 1 to come into close contact with the wearer's crotch.
  • the absorber 4 has such a constricted portion 41, it becomes difficult for the absorber 4, which has relatively high rigidity among the constituent members of the light incontinence pad 1, to come into contact with the inner portions of both legs of the wearer. Therefore, it is possible to make it difficult for the wearer to feel a foreign body.
  • each of the two pairs of bending guiding portions 51 to 54 is arranged in the constricted portion 41.
  • the bending guide portion in such a constriction portion, at least a pair of bending guide portions are arranged in such a constriction portion. Is preferable.
  • the bending guides are easily deformed according to the movement of the wearer's legs, and more accurately. The above-mentioned follow-up deformation action can be exhibited.
  • each of the above-mentioned bending guide portions 51 to 54 has an end portion on the outer side in the width direction on the outer side in the longitudinal direction of the constricted portion 41, as shown in FIG. It is located between the maximum width portion 43 having the maximum width of the absorber 4 and the minimum width portion 42 having the minimum width of the absorber 4 in the constricted portion 41, and between the maximum width portion 43 and the minimum width portion 42. It is located on the outer side in the longitudinal direction from the intermediate position in the longitudinal direction of.
  • such arrangement of the bending guides is not an essential component, but at least the widthwise outer ends of each of the pair of bending guides are such.
  • the bending guide can be accurately deformed according to the movement, and the above-mentioned effect can be more stable and more stable. It can be demonstrated reliably.
  • the absorber has a constricted portion as described above, so that the absorber has, for example, a structure in which the length in the width direction is constant in the longitudinal direction. You may have.
  • the plan-view shape, various dimensions, basis weight, etc. of the absorber are not particularly limited as long as they can be used as an absorber of an absorbent article, and can be adjusted according to desired absorption performance, flexibility, strength, and the like. Any shape (for example, rectangle, ellipse, hourglass, etc.), various dimensions, basis weight, etc. can be adopted.
  • the position where the absorber is arranged is not particularly limited as long as it includes the central portion in the longitudinal direction of the absorbent article, and the absorber is arranged unevenly toward one side in the longitudinal direction in, for example, the absorbent article. You may be.
  • the absorber may be bonded to a constituent member such as an absorbent layer on the skin-facing surface side, a surface sheet, or an intermediate sheet located on the skin-facing surface side via an adhesive layer. .. In this way, when the absorber is joined to the component located on the side facing the skin via the adhesive layer, the absorber does not easily lose its shape even during the wearer's movement, and exhibits better fit. can do.
  • FIG. 6 is a plan view schematically showing an arrangement form of the adhesive layer H arranged on the skin facing surface side of the absorber 4.
  • the adhesive layer H disposed in the absorbent body 4 is a spiral form in plan view, i.e., in a form having a longitudinal direction L parallel portion intersecting with the virtual line L 1, the longitudinal direction L It extends to.
  • the adhesive layer extends in the longitudinal direction while having a portion intersecting the longitudinal direction L in a plan view (for example, it is arranged in a spiral shape, an omega shape, or the like along the longitudinal direction).
  • the wearer wears an absorbent article without hindering the follow-up deformation action of the bending guide even during the above-mentioned operation in which a force in the twisting direction is applied. It can be deformed by accurately following the movement of.
  • the mode of the absorber is the above-mentioned light incontinence unless the effect of the present invention is impaired. It is not limited to the aspect of the pad 1.
  • FIG. 7 is a plan view of the light incontinence pad 1'according to another embodiment of the absorbent article of the present invention as viewed from the surface sheet 2 side in the thickness direction T
  • FIG. 8 is a plan view. , It is a plan view seen in the thickness direction T from the skin facing surface side in a state where the absorber 4'of the light incontinence pad 1'is unfolded.
  • the liquid permeable surface sheet 2 forming the skin facing surface of the light incontinence pad 1'and the non-skin facing surface of the light incontinence pad 1 in the thickness direction T.
  • a back sheet (not shown) forming the back sheet and an absorber 4'located between these sheets are provided as a basic configuration, and further, they are arranged on the surface of the back sheet on the non-skin facing surface side and are light.
  • An adhesive portion (not shown) for adhesively fixing the incontinence pad 1'to the inner surface of the wearer's clothing is further provided.
  • the light incontinence pad 1 'in as shown in FIG. 7, the longitudinal extending direction L pair of compression portions E so as to be symmetrical with respect to the width direction center line C L' and 1, E '2, the pair the compressing portion E '1, E' 2 in the longitudinal direction outward while spanning the width direction center line C L in the width direction W so as to be symmetrical position to and across the longitudinal centerline C W respectively side substantially circular a pair of compression portions E '3, E' 4 extending in an arc, and symmetrical with respect to the above pair of compression portions E '1, E' 2 of respectively positioned longitudinally outward and longitudinal center line C W and the pair of compression portions E '3, E' pair of compression portions extending so as to draw a greater arc than 4 E '5, E' 6 so continuously along the outer edge of the light incontinence pad 1 It has a round seal portion extending to.
  • each of the above-mentioned bending guide portions 51'to 54' extends inward in the width direction from the widthwise edge 4W 1 , 4W 2 of the absorber 4'and is inward in the width direction. As it extends inward in the longitudinal direction, it extends inward in the width direction in the middle of the absorber 4'from the width edge 4W 1 , 4W 2 toward the inward side in the width direction. It has branching portions 51'B to 54'B that branch toward the outer side of the direction.
  • excrement liquid such as urine travels along the bending guidance portions 51' to 54'and is L in the longitudinal direction. Even if it diffuses into the water, the excrement liquid can be guided inward in the width direction, so that the leakage of the excrement liquid can be made less likely to occur.
  • each of the pair of bending guide portions 51'and 52' located on one side of the longitudinal direction L is within the width direction in a plan view as shown in FIG.
  • the lateral ends 51'E and 52'E communicate with one side end of the pair of recesses 61'and 62' in the longitudinal direction L, respectively.
  • each of the pair of bending guide portions 53'and 54'located on the other side in the longitudinal direction L also has a pair of end portions 53'E and 54'E on the inner side in the width direction in a plan view. It communicates with the other end of the recesses 61'and 62'in the longitudinal direction, respectively.
  • the pair of bending guides and the pair of recesses extending in the longitudinal direction are arranged in this way, the above-mentioned twist transmitted through the bending guides during the wearer's operation, similar to the above-mentioned light incontinence pad 1.
  • the force in the direction of movement can be more easily dispersed in the pair of recesses, and the central portion in the width direction of the absorber can be made more difficult to be deformed.
  • a pair of bending guide portions 51'and 52'located on one side of the longitudinal direction L and a pair of bending guiding portions 53'located on the other side of the longitudinal direction L. , 54' are arranged symmetrically with respect to the longitudinal center line C W.
  • the light incontinence pad 1, 52 ' is positioned on one side in the width direction W with respect to the width direction center line C L 'and imaginary extension 51'L of, a fold inducing part 52 located on the other side in the width direction W with respect to the width direction center line C L' a fold inducing part 51 and the virtual extension line 52'L of the are arranged so as not to overlap in a straight line, similarly, the pair of bent guiding portion 53 located on the other side of the longitudinal direction L ', 54' also in the width direction W with respect to the width direction center line C L on the other hand 'and imaginary extension 53'L of, a fold inducing part 54 located on the other side in the width direction W with respect to the width direction center line C L' a fold inducing part 53 positioned on the side imaginary extension 54 of the ' They are arranged so that they do not overlap with L on the same straight line.
  • the skin facing side absorption layer 7 has a portion in the width direction that overlaps the bending guiding portions 51 to 54 in the thickness direction T, and the bending guiding portions 51 to 54 in the absorber 4 have a length in the width direction. It is formed larger than the width direction length of the portion having 54.
  • the skin-facing surface side absorbing layer overlaps with the pair of bending guide portions in the thickness direction. It is preferable that the width direction length of the portion to be formed is larger than the width direction length of the portion having the pair of bending guide portions in the absorber.
  • the absorption layer on the side facing the skin is formed in this way, it is possible to prevent twisting due to the above-mentioned deformation of the bending guide portion before the excrement liquid such as urine is supplied from the wearer.
  • An absorbent article provided with such an absorbent layer on the side facing the skin can exhibit a better fit and can prevent leakage of excrement liquid due to twisting.
  • the absorption layer on the side facing the skin is not particularly limited as long as it has a function of absorbing and retaining excrement liquid such as urine discharged from the wearer, and is, for example, the same as the above-mentioned absorber.
  • a material made of a water-absorbent material, or a material obtained by wrapping the water-absorbent material with one or more sheets of a liquid-permeable sheet such as a hydrophilic non-woven fabric can be preferably used.
  • the absorbent layer on the skin-facing surface side contains at least an absorbent polymer. If the skin-facing surface absorbing layer contains at least an absorbent polymer, when the wearer supplies excrement such as urine, the skin-facing surface absorbing layer absorbs the excrement and swells, causing the skin to swell. It is possible to make it more difficult for the absorbent body located on the non-skin facing surface side of the absorbing layer on the facing surface side to be twisted. As a result, the absorbent article provided with the absorption layer on the side facing the skin can easily maintain an excellent fit even after excretion by the wearer, and can prevent the excrement liquid from leaking due to twisting. it can.
  • the absorbent polymer is a polymer capable of absorbing and retaining water, and examples thereof include a polymer having a three-dimensional network structure in which a water-soluble polymer is appropriately crosslinked. Specific examples thereof include starch-based, acrylic acid-based, and amino acid-based particulate or fibrous polymers.
  • the plan-view shape, various dimensions, basis weight, etc. of the absorption layer on the side facing the skin are not particularly limited as long as the effects of the present invention are not impaired, and are arbitrary according to desired absorption performance, flexibility, strength, and the like. (For example, rectangular shape, oval shape, hourglass shape, etc.), various dimensions, basis weight, etc. can be adopted.
  • the adhesive portion 8 for adhesively fixing the light incontinence pad 1 to the inner surface of the wearer's clothes is on the surface of the back surface sheet 3 on the non-skin facing surface side as shown in FIG. They are arranged in the form of six stripes that extend continuously in the longitudinal direction L and are arranged at predetermined intervals in the width direction W.
  • the light incontinence pad 1 is adhesively fixed to the inner surface of the wearer's clothes.
  • the light incontinence pad 1 can be adhesively fixed to the inner surface of the garment by peeling off the release sheet and then pressing the adhesive portion 8 against the inner surface of the garment.
  • each of the bending guide portions 51 to 54 is arranged so as to partially overlap the adhesive portion 8 in the thickness direction T as shown in FIG.
  • each of the pair of bending guides described above is non-skin facing the back sheet.
  • the adhesive portion is arranged so as not to overlap or partially overlap with the adhesive portion arranged on the surface on the surface side in the thickness direction. In this way, when each of the pair of bending guide portions is arranged so as not to completely overlap the adhesive portion in the thickness direction, the follow-up deformation action of the pair of bending guide portions described above is not hindered. ,
  • the absorbent article can be fixed to the wearer's clothes, and excellent fit can be exhibited more stably.
  • the adhesive portion 8 extends to a position on the outer side in the longitudinal direction from the bending guide portions 51 to 54 in a plan view. Is located in.
  • the adhesive portion is arranged at least at a position on the outer side in the longitudinal direction from the above-mentioned pair of bending guide portions. It is preferable that it is.
  • the adhesive portion 8 is arranged in a region overlapping the absorber 4 in the thickness direction T in a plan view, and is arranged in the longitudinal direction L. They are arranged on both sides of the widthwise center line C L extending.
  • the adhesive portion 8 is arranged in this way, the portion overlapping with the absorber 4 in the thickness direction can be steadily adhesively fixed along the shape of the inner surface of the wearer's clothing, and further, during wearing. Even if the wearer's legs and buttocks move alternately left and right, the light incontinence pad 1 may turn over or peel off during wearing because it easily deforms along with the wearer's clothes. Is less likely to occur.
  • any pressure-sensitive adhesive known in the art can be adopted, for example, styrene-ethylene-butadiene-styrene (SEBS), styrene-butadiene-styrene (SBS). , Styrene-Isoprene-Styrene (SIS) and other pressure-sensitive adhesives mainly composed of styrene-based copolymers can be used.
  • SEBS styrene-ethylene-butadiene-styrene
  • SBS styrene-butadiene-styrene
  • SIS Styrene-Isoprene-Styrene
  • other pressure-sensitive adhesives mainly composed of styrene-based copolymers can be used.
  • the arrangement amount, arrangement shape, etc. of the adhesive portion are not particularly limited as long as the effect of the present invention is not impaired, and the adhesive portion is formed on the surface of the back surface sheet on the non-skin facing surface side.
  • the adhesive portion can be arranged in any linear form such as one or a plurality of linear lines (stripes), dotted lines, curved lines, and zigzags in the longitudinal direction L.
  • the adhesive portion may extend continuously in the longitudinal direction L as described above, or may extend intermittently.
  • various dimensions for example, length in the longitudinal direction, length in the width direction, etc.
  • basis weight of the adhesive portion are not particularly limited as long as the effects of the present invention are not impaired, and the light incontinence pad can be fixed to clothing.
  • Arbitrary dimensions, basis weight, etc. can be adopted in consideration of ease of use and fit.
  • the light incontinence pad 1 is located at both ends of the light incontinence pad 1 in the width direction W and extends in the longitudinal direction L at a position closer to the skin facing surface than the surface sheet 2.
  • a pair of protective members including a pair of side seats 91, 92 arranged in such a manner and a plurality of elastic members 93, 94 arranged along the longitudinal direction L in each of the pair of side seats 91, 92.
  • the leak wall portions 9 and 9 are provided.
  • the pair of side sheets 91 and 92 are arranged at both ends of the light incontinence pad 1 in the width direction W at the positions of the surface sheet 2 on the skin-facing surface side as shown in FIG.
  • the edge portion on the inner side in the width direction can stand up to form a pair of leak-proof walls.
  • It is composed of a pair of strip-shaped liquid-impermeable sheets extending in the longitudinal direction L.
  • Each of the pair of side seats 91 and 92 extends from one side edge of the light incontinence pad 1 in the longitudinal direction L to the other side edge in a plan view.
  • Each of the pair of side sheets 91 and 92 faces the skin of the surface sheet 2 at both ends of the laminate of the front surface sheet 2, the skin-facing surface side absorbing layer 7, the absorber 4, and the back surface sheet 3 in the width direction W. Both sheets are arranged so as to be sandwiched in the thickness direction T while being bent so as to reach the surface of the back surface sheet 3 on the non-skin facing surface side from the front surface side, and further, in that state, the width direction W of the laminate is arranged.
  • any joining means not shown
  • the fixed ends of the pair of side sheets 91 and 92 are formed.
  • the inner side ends of the pair of side sheets 91 and 92 located on the skin-facing surface side of the surface sheet 2 in the width direction W are not joined to any of the sheet-like members and form free ends. doing.
  • the strip-shaped liquid-impermeable sheet that can be used as a side sheet may have various properties (for example, liquid impermeableness, touch, flexibility, strength, etc.) that can be used as a side sheet of an absorbent article.
  • the present invention is not particularly limited, and for example, a hydrophobic non-woven fabric (for example, a spunbonded non-woven fabric, a point-bonded non-woven fabric, an SMS non-woven fabric, etc. having or imparted hydrophobicity), a liquid-impermeable synthetic resin film, and the like. And a laminate of these can be used.
  • the outer shape, basis weight, thickness, etc. of the strip-shaped liquid impermeable sheet that can be used as the side sheet are not particularly limited as long as the effects of the present invention are not impaired, and the desired liquid impermeability and touch are not particularly limited. , Any shape, basis weight, thickness, etc. can be adopted according to flexibility and the like.
  • the elastic members 93 and 94 are particularly limited as long as they can apply a contractile force in the longitudinal direction L to the light incontinence pad 1 via the pair of side sheets 91 and 92, and further the pair of side sheets 91 and 92.
  • any elastic member such as a rubber thread or flat rubber made of natural rubber; a thermoplastic elastomer such as urethane or ethylene-vinyl acetate copolymer (EVA) molded into a thread or band can be used. ..
  • the dimensional shape and the number of the elastic members 93 and 94 can apply a contraction force in the longitudinal direction L to the light incontinence pad 1 via the pair of side sheets 91 and 92, and further the pair of side sheets 91 and 92. If there is, the length is not particularly limited, and for example, the length of the elastic members 93 and 94 in the longitudinal direction is 1/2 or more, preferably 2/3 of the longitudinal length (overall length) of the entire light incontinence pad 1.
  • the above longitudinal length can be adopted, and as the fineness of the elastic members 93 and 94, a fineness of 200 dtex to 800 dtex, preferably a fineness of 300 dtex to 700 dtex can be adopted, and further, the elastic member 93, As the number of 94, one may be arranged on each of the pair of side sheets 91 and 92, two may be arranged, or three or more may be arranged.
  • the longitudinal fixed ends 93E and 94E of the elastic members 93 and 94 are more than the virtual extension lines 51L to 54L of the bending guide portions 51 to 54. It is located on the outer side in the longitudinal direction.
  • the elastic member has a fixed end in the longitudinal direction outside the virtual extension line of the pair of bending guides. It is preferably located on the opposite side.
  • the leak-proof wall portion can be formed to the outer side in the longitudinal direction of the bending guide portion, so that the above-mentioned bending guide portion functions as a bending base point during wearing and absorbs. Even if the article is deformed according to the movement of the wearer, it is possible to prevent the excrement liquid from leaking.
  • the absorbent article of the present invention since it is not an essential component of the absorbent article of the present invention to include the above-mentioned leak-proof wall portion (that is, the side sheet and the elastic member), the absorbent article includes these side sheets and the elastic member. It does not have to be.
  • the present invention can be applied to various absorbent articles such as panty liners, sanitary napkins, disposable diapers, etc., in addition to the light incontinence pads of each embodiment described above.
  • the absorbent article of the present invention is not limited to the above-described embodiments, and can be appropriately combined, substituted, modified, or the like within a range that does not deviate from the object and purpose of the present invention.
  • the ordinal numbers such as "first” and "second” are for distinguishing the items to which the ordinal numbers are attached, and mean the order, priority, importance, etc. of each item. It's not something to do.

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 n'a pas tendance à procurer une sensation inconfortable à l'utilisateur pendant la marche et autres mouvements, et assure une excellente tenue.　Cet article absorbant comprend une feuille de surface avant (2), une feuille de surface arrière (3), et un absorbeur (4) positionné entre ces feuilles, l'article absorbant étant caractérisé en ce que : l'absorbeur (4) comprend, dans une vue en plan, au moins une paire de parties de guidage de pliage (51, 52) qui sont disposées de manière symétrique par rapport à une ligne centrale dans le sens de la largeur CL s'étendant dans une direction longitudinale L, et au moins une paire de parties creuses (61, 62) qui sont situées à l'intérieur de la paire de parties de guidage de pliage (51, 52) dans le sens de la largeur, sont disposées de manière symétrique par rapport à la ligne centrale dans le sens de la largeur CL, et s'étendent dans la direction longitudinale L ; et la paire de parties de guidage de pliage (51, 52) s'étendent vers l'intérieur dans le sens de la largeur à partir des bords dans le sens de la largeur de l'absorbeur (4), et s'étendent vers l'intérieur dans la direction longitudinale vers le côté interne dans le sens de la largeur.
PCT/JP2020/032452 2019-11-08 2020-08-27 Article absorbant WO2021090556A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080075775.9A CN114667124B (zh) 2019-11-08 2020-08-27 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-203568 2019-11-08
JP2019203568A JP6869310B1 (ja) 2019-11-08 2019-11-08 吸収性物品

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WO2021090556A1 true WO2021090556A1 (fr) 2021-05-14

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JP (1) JP6869310B1 (fr)
CN (1) CN114667124B (fr)
TW (1) TW202120048A (fr)
WO (1) WO2021090556A1 (fr)

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WO2023053680A1 (fr) * 2021-09-29 2023-04-06 ユニ・チャーム株式会社 Article absorbant et emballage d'article absorbant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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JP2014117321A (ja) * 2012-12-13 2014-06-30 Kao Corp 吸収性物品
JP2015119922A (ja) * 2013-12-25 2015-07-02 大王製紙株式会社 吸収性物品
JP2018122014A (ja) * 2017-02-03 2018-08-09 花王株式会社 吸収性物品

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JP5709796B2 (ja) * 2012-05-18 2015-04-30 ユニ・チャーム株式会社 吸収性物品
JP5860928B2 (ja) * 2014-06-27 2016-02-16 ユニ・チャーム株式会社 吸収性物品
EP3058916B1 (fr) * 2015-02-17 2018-01-31 The Procter and Gamble Company Emballage pour articles absorbants formant un bassin tridimensionnel
EP3058915B1 (fr) * 2015-02-17 2018-11-07 The Procter and Gamble Company Noyaux absorbants pour articles absorbants
JP6373216B2 (ja) * 2015-03-31 2018-08-15 ユニ・チャーム株式会社 吸収性物品
CN106456400B (zh) * 2015-12-29 2018-10-19 尤妮佳股份有限公司 吸收性物品
JP6420779B2 (ja) * 2016-02-01 2018-11-07 ユニ・チャーム株式会社 吸収性物品
JP6416145B2 (ja) * 2016-03-31 2018-10-31 ユニ・チャーム株式会社 吸収性物品
JP6359064B2 (ja) * 2016-09-29 2018-07-18 大王製紙株式会社 パッド
JP7126349B2 (ja) * 2017-12-28 2022-08-26 花王株式会社 使い捨ておむつ

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JP2014117321A (ja) * 2012-12-13 2014-06-30 Kao Corp 吸収性物品
JP2015119922A (ja) * 2013-12-25 2015-07-02 大王製紙株式会社 吸収性物品
JP2018122014A (ja) * 2017-02-03 2018-08-09 花王株式会社 吸収性物品

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Publication number Priority date Publication date Assignee Title
WO2023053680A1 (fr) * 2021-09-29 2023-04-06 ユニ・チャーム株式会社 Article absorbant et emballage d'article absorbant

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CN114667124A (zh) 2022-06-24
JP6869310B1 (ja) 2021-05-12
JP2021074280A (ja) 2021-05-20
CN114667124B (zh) 2023-05-23
TW202120048A (zh) 2021-06-01

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