WO2020256144A1 - 吸収性物品、吸収体の製造方法、及び吸収体の製造装置 - Google Patents

吸収性物品、吸収体の製造方法、及び吸収体の製造装置 Download PDF

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Publication number
WO2020256144A1
WO2020256144A1 PCT/JP2020/024257 JP2020024257W WO2020256144A1 WO 2020256144 A1 WO2020256144 A1 WO 2020256144A1 JP 2020024257 W JP2020024257 W JP 2020024257W WO 2020256144 A1 WO2020256144 A1 WO 2020256144A1
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WO
WIPO (PCT)
Prior art keywords
absorber
squeezing
squeezed
absorbent article
region
Prior art date
Application number
PCT/JP2020/024257
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
守 大尾
工藤　悦子
夕貴 橋野
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.)
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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 CN202080044487.7A priority Critical patent/CN114040736A/zh
Publication of WO2020256144A1 publication Critical patent/WO2020256144A1/ja

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/495—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies with faecal cavity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15747—Folding; Pleating; Coiling; Stacking; Packaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/533—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 having discontinuous areas of compression
    • 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
    • A61F13/536—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 having discontinuous areas of compression

Definitions

  • the present invention relates to an absorbent article, a method for producing an absorber, and an apparatus for producing an absorber.
  • the rigidity of the absorber is low in the unsqueezed area where the lattice squeezed part is not provided. Therefore, in the unsqueezed area, the absorber is easily deformed, and the absorber is easily fitted to the wearer's body. However, the absorber tends to twist, and there is a risk that the absorption area cannot be secured.
  • the rigidity of the absorber increases, so that the absorber becomes difficult to twist.
  • the provision of the lattice pressing portion makes it difficult for the absorber to fit the wearer's body.
  • the absorber is easily twisted and a sufficient absorption area is secured. It may not be possible.
  • the absorbent article according to one embodiment is in the front-rear direction, the width direction orthogonal to the front-rear direction, the thickness direction, the front side region, the rear side region, the front side region, and the rear side region in the front-rear direction. It has a sandwiched inseam area and at least an absorber arranged in the inseam area.
  • the absorber is provided with a squeezed portion squeezed in the thickness direction.
  • the squeezed portion has a first squeezed portion having a grid pattern in the plan view of the absorber and a second squeezed portion having a pattern different from the grid pattern in the plan view of the absorber.
  • the method for producing an absorber according to an absorbent article includes a pressing step of providing a pressing portion by pressing at least the absorbing core in the thickness direction.
  • a pressing step of providing a pressing portion by pressing at least the absorbing core in the thickness direction.
  • a first squeezing portion having a grid pattern in the plan view of the absorber and a second squeezing section having a pattern different from the grid pattern in the plan view of the absorber.
  • the absorbent body manufacturing apparatus includes a squeezing apparatus that provides a squeezing portion by squeezing at least the absorbing core by a plurality of convex portions.
  • the plurality of convex portions have a first convex portion provided with a first pressing portion having a grid-like pattern in the plan view of the absorber, and a first convex portion having a pattern different from the grid-like pattern in the plan view of the absorber. It has a second convex portion for which two pressing portions are provided.
  • FIG. 1 is a schematic front view of the absorbent article according to the embodiment.
  • FIG. 2 is a schematic plan view of the absorbent article according to the embodiment.
  • FIG. 3 is a schematic plan view of the absorber according to the embodiment.
  • FIG. 4 is a schematic cross-sectional view of the absorber according to the embodiment.
  • FIG. 5 is a diagram for explaining a method for producing an absorber according to an embodiment.
  • FIG. 6 is a diagram for explaining an absorber manufacturing apparatus according to an embodiment.
  • FIG. 7 is a schematic cross-sectional view of the absorber according to the modified example.
  • the absorbent article according to one aspect is in the front-rear direction, the width direction orthogonal to the front-rear direction, the thickness direction, the front side region, the rear side region, the front side region and the rear side region in the front-rear direction. It has a sandwiched inseam area and at least an absorber arranged in the inseam area.
  • the absorber is provided with a squeezed portion squeezed in the thickness direction.
  • the squeezed portion has a first squeezed portion having a grid pattern in the plan view of the absorber and a second squeezed portion having a pattern different from the grid pattern in the plan view of the absorber.
  • the rigidity of the absorber can be changed between the region where the first squeezed portion is provided and the region where the second squeezed portion is provided. Therefore, since the deformation of the absorber can be controlled, the second squeezed portion is provided in addition to the first squeezed portion while having the diffusivity of excrement on the absorber by the first squeezed portion. , It is possible to suppress the twisting of the absorber and to fit the absorber to the wearer's body at the same time.
  • the area occupied by the second pressed portion per unit area may be larger than the area occupied by the first pressed portion per unit area.
  • the rigidity of the fixed region including the second squeezed portion (the region including the region where the second squeezed portion is provided and the region around it) is increased to the fixed region including the first squeezed portion (the first squeezed portion is provided). Since it is higher than the rigidity of the area obtained by combining the area around the area and the area around the area), the deformation of the absorber can be suppressed.
  • the second squeezing portion may be provided in the inseam region.
  • the absorber In the inseam area, the absorber is easily deformed in the width direction by being pinched by the wearer's legs. Therefore, by providing at least the second squeezing portion in the inseam region, the rigidity of the inseam region can be increased by the second squeezing portion, and the deformation of the absorber due to being pinched by the wearer's leg can be suppressed.
  • the inseam region may have a posterior inseam region located posterior to the anterior-posterior center of the absorbent article.
  • the second squeezing portion may be provided in the posterior inseam region.
  • the second squeezed portion may be provided at a position distant from the first squeezed portion in the plan view of the absorber.
  • the force applied to one of the first squeezed portion and the second squeezed portion is less likely to be transmitted to the other as compared with the case where the first squeezed portion and the second squeezed portion are continuously provided. .. Therefore, the first squeezed portion and the second squeezed portion are less likely to be influenced by each other, and the functions of the first squeezed portion and the second squeezed portion can be exhibited.
  • the distance between the first squeezed portion and the second squeezed portion in the front-rear direction is determined by the front-rear distance of one lattice composed of the first squeezed portion. It may be longer than the length in the direction. As a result, the distance between the first squeezed portion and the second squeezed portion is shorter than the length of one lattice of the first squeezed material, so that the first squeezed portion and the second squeezed portion are separated from each other. It becomes more difficult for the applied force to be transmitted to the other side. Therefore, the functions of the first squeezed portion and the second squeezed portion can be further exerted.
  • the first squeezing portion is provided on the front lattice squeezing portion provided on the front side of the center of the absorbent article in the anteroposterior direction and on the posterior side of the center in the anteroposterior direction. It may have a post-lattice squeezed portion. In the plan view of the absorber, the area occupied by the rear lattice squeezed portion per unit area may be larger than the area occupied by the front lattice squeezed portion per unit area.
  • the region on the rear side of the center of the absorbent article in the anteroposterior direction has high rigidity
  • the region on the front side of the center of the absorbent article in the anteroposterior direction has low rigidity. Therefore, urine is discharged from the region anterior to the center of the absorbent article in the anteroposterior direction, and the absorber is easily deformed because the rigidity is relatively low while maintaining diffusivity by the anterior lattice pressing portion.
  • the absorber can easily approach the wearer's body (specifically, the urination port), so that the absorber can easily absorb urine.
  • the absorber is less likely to be deformed because a region having relatively high rigidity is provided while maintaining diffusivity by the rear lattice pressing portion. As a result, it becomes difficult for the absorber to enter the groove (intergluteal cleft) of the buttocks, and a storage space for excrement (feces) can be secured.
  • the squeezed portion may further include a third squeezed portion having a pattern different from the grid pattern in the plan view of the absorber.
  • the third squeezing portion may be provided on the front side of the second squeezing portion.
  • the third squeezing portion may be provided on the front side of the first squeezing portion.
  • the area occupied by the third pressed portion per unit area may be larger than the area occupied by the first pressed portion per unit area.
  • the absorber may have an absorbent core containing an absorbent material that absorbs the liquid.
  • the absorption core may have a constricted portion in the inseam region in which both side edges of the absorption core in the width direction are constricted inward in the width direction in a plan view of the absorber.
  • the third pressing portion may be provided on the front side of the constricted portion.
  • the leg is formed by the rigidity of the third squeezed portion without hindering the deformation of the portion sandwiched between the wearer's legs. It is possible to prevent the deformation of the sandwiched portion from interlocking with the portion on the front side of the third pressed portion.
  • the absorbent article may have at least an exterior body provided in the anterior region.
  • the third squeezed portion may overlap the exterior body in the thickness direction.
  • the rigidity of the third squeezed portion can prevent the exterior body from being deformed in conjunction with the deformation of the absorber. As a result, wrinkles are less likely to occur on the outer body, and excrement can be prevented from leaking from the ventral side.
  • the third squeezed portion straddles the center of the absorbent article in the width direction and has a convex shape toward the rear side in a plan view of the absorber. It may extend in the width direction.
  • the deformation of the absorber is released to the outside in the width direction along the convex shape of the third squeezed portion. .. Therefore, it is possible to suppress the deformation of the absorber in the portion in front of the third squeezed portion.
  • the first squeezed portion may be composed of a plurality of squeezed portions intermittently provided so as to have the grid pattern.
  • the method for producing an absorber according to an absorbent article includes a pressing step of providing a pressing portion by pressing at least the absorbing core in the thickness direction.
  • a pressing step of providing a pressing portion by pressing at least the absorbing core in the thickness direction.
  • a first squeezing portion having a grid pattern in the plan view of the absorber and a second squeezing section having a pattern different from the grid pattern in the plan view of the absorber.
  • the rigidity can be changed between the region where the first squeezed portion is provided and the region where the second squeezed portion is provided.
  • the first squeezing portion has the diffusivity of excrement on the absorber
  • the second squeezing portion in addition to the first squeezing portion, the twisting of the absorber can be suppressed and the wearer's It is possible to manufacture an absorber related to an absorbent article that is compatible with the fit of the absorber to the body.
  • the squeezing step may include a step of covering the absorption core with a core wrap sheet constituting the core wrap.
  • the pressing portion may be provided by pressing the absorption core and the core wrap sheet.
  • the first squeezing is performed by squeezing the absorption core and the core wrap sheet by a first convex portion provided on at least one outer peripheral surface of the pair of first rolls.
  • a step of providing the portion, and a step of providing the second squeezed portion by squeezing the absorption core and the core wrap sheet by a second convex portion provided on at least one outer peripheral surface of the pair of second rolls. May have.
  • the first convex portion and the second convex portion cannot be arranged at the same position in one roll, the positions where the first squeezed portion and the second squeezed portion are provided can be restricted. Therefore, by using the first roll and the second roll, it is possible to provide the first squeezed portion and the second squeezed portion at arbitrary positions.
  • the squeezing portion in the squeezing step, when the other squeezing portion is provided in the squeezing region where one of the first squeezing portion and the second squeezing portion is provided, the squeezing portion is provided in the transport direction.
  • the absorption core and the core wrap sheet may be squeezed only in a part of the squeezed region.
  • the squeezing step includes a step of providing one of the first squeezing portion and the second squeezing portion that is deeply squeezed in the thickness direction, and the one squeezing portion. After being provided, it may have a step of providing the other pressing portion of the first pressing portion and the second pressing portion. According to this aspect, if the core wrap sheet is deeply squeezed in a state where the rigidity of the core wrap sheet is increased by squeezing, the highly rigid core wrap sheet is difficult to stretch, and therefore the core wrap sheet may be torn.
  • the amount of change in the thickness direction of the core wrap sheet at the time of squeezing can be reduced by squeezing the core wrap sheet provided with the deeply squeezed portion by deeply squeezing in the thickness direction. Therefore, when a shallow pressing portion and a deep pressing portion are provided, it is possible to prevent the core wrap sheet from being torn.
  • the absorbent body manufacturing apparatus includes a squeezing apparatus that provides a squeezing portion by squeezing at least the absorbing core by a plurality of convex portions.
  • the plurality of convex portions have a first convex portion provided with a first pressing portion having a grid-like pattern in the plan view of the absorber, and a first convex portion having a pattern different from the grid-like pattern in the plan view of the absorber. It has a second convex portion for which two pressing portions are provided.
  • the first squeezing portion has the diffusivity of excrement on the absorber
  • the second squeezing portion in addition to the first squeezing portion, the twisting of the absorber can be suppressed and the wearer's It is possible to manufacture an absorber related to an absorbent article that is compatible with the fit of the absorber to the body.
  • the absorbent article is, for example, a pants-type disposable diaper, a tape-type disposable diaper, or a shorts-type sanitary napkin.
  • the absorbent article of the embodiment is a pants-type disposable diaper.
  • FIG. 1 is a schematic front view of the absorbent article 1 according to the present embodiment.
  • FIG. 2 is a schematic plan view of the absorbent article 1 according to the present embodiment. The schematic plan view shown in FIG. 2 shows an stretched state in which the absorbent article 1 is stretched to a state in which wrinkles are not formed in a state where the side joint portion 18 described later is unfolded.
  • FIG. 3 is a schematic plan view of the absorber according to the present embodiment.
  • FIG. 4 is a schematic cross-sectional view of the absorber according to the present embodiment. It is sectional drawing which follows the F4-F4 cross section shown in FIG.
  • the absorbent article 1 has a front-rear direction L and a width direction W that are orthogonal to each other.
  • the anteroposterior direction L is defined by the direction extending to the anterior side and the posterior side of the body.
  • the anteroposterior direction L is a direction extending anterior-posteriorly in the deployed absorbent article 1.
  • the absorbent article 1 has an orthogonal thickness direction T in both the front-rear direction L and the width direction W.
  • the thickness direction T extends to the skin surface side T1 facing the wearer side and the non-skin surface side T2 on the side opposite to the skin surface side.
  • the absorbent article 1 has a front side region S1, a rear side region S2, and an inseam region S3.
  • the front side region S1 is a region facing the wearer's front waist circumference (abdomen).
  • the rear side region S2 is a region facing the rear waist circumference (back portion) of the wearer, and includes an region on which the body (buttocks) is placed when worn.
  • the inseam area S3 is located in the inseam of the wearer and is a region sandwiched between the front side area S1 and the rear side area S2.
  • a side joint portion 18 may be provided in which the end portion of the front side region S1 in the width direction W and the end portion of the rear side region S2 in the width direction W are joined.
  • the side joint portion 18 is defined by a portion in which the outer portion of the front side region S1 and the outer portion of the rear side region S2 are locked to each other.
  • the absorbent article 1 in the state where the side joint 18 is formed, the absorbent article 1 has a waist opening 16 through which the wearer's body is passed and a pair of legs into which the wearer's legs are inserted.
  • the leg circumference opening 17 is formed.
  • the waist opening 16 may be defined by the front edge S1F of the front region S1 and the trailing edge S2R of the rear region S2.
  • FIG. 2 shows a state in which the joint at the side joint portion 18 is released and the absorbent article 1 is unfolded.
  • the side joint portion 18 may extend along the front-rear direction L in each of the front exterior body 20 and the rear exterior body 30.
  • the boundary between the front side region S1 and the inseam region S3 may be defined by the rear end edge of the side joint 18 provided on the front exterior body 20.
  • the boundary between the rear side region S2 and the inseam region S3 may be defined by the front end edge of the side joint 18 provided on the rear exterior body 30.
  • the inseam area S3 may be an area provided with the leg circumference opening 17.
  • the inseam area S3 includes a front inseam area S3F located in front of the center of the absorbent article 1 in the anteroposterior direction L and a posterior inseam area S3R located posterior to the center of the absorbent article 1 in the anteroposterior direction L. , May have.
  • the outer portion in the present invention is a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge is an outer edge in the width direction W.
  • the inner portion in the present invention is a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is an inner edge in the width direction W.
  • the front end portion and the rear end portion in the present invention are portions that occupy a certain range in the front-rear direction L including the edge in the front-rear direction L, and the front end edge and the rear end edge are edges in the front-rear direction L.
  • the outer edge includes a front edge and a trailing edge, and the outer edge includes a front edge and a trailing edge.
  • the absorbent article 1 may have an exterior body 15 and an absorbent main body 40.
  • the exterior body 15 overlaps the absorbent body 40 in the thickness direction T.
  • the exterior body 15 may have a front exterior body 20 arranged in the front side region S1 and a rear exterior body 30 arranged in the rear side region S2.
  • the front exterior body 20 is an exterior body arranged on the non-skin surface side T2 of the absorbent main body 40 in the front side region S1.
  • the rear exterior body 30 is an exterior body that is separated from the front exterior body 20 in the front-rear direction L and is arranged on the non-skin surface side T2 of the absorbent main body 40 in the rear side region S2.
  • the exterior body 15 may have a cover sheet arranged on the skin surface side T1 of the absorbent body 40.
  • the cover sheets are the front cover sheet 27 provided on the skin surface side T1 of the absorbent main body 40 in the front side region S1 and the rear cover sheet 37 provided on the skin surface side T1 of the absorbent main body 40 in the rear side region S2. And may have.
  • the front cover sheet 27 and the rear cover sheet 37 may be made of a sheet such as a non-woven fabric.
  • the front exterior body 20 may have a front exterior sheet 25 arranged on the non-skin surface side T2 rather than the absorbent main body 40.
  • the rear exterior body 30 may have a rear exterior sheet 35 arranged on the non-skin surface side T2 of the absorbent body 40.
  • the front exterior sheet 25 and the rear exterior sheet 35 may be composed of, for example, a sheet such as a non-woven fabric.
  • the front exterior sheet 25 and the rear exterior sheet 35 may be composed of a plurality of sheets that overlap in the thickness direction T.
  • the exterior body 15 may have a waist elastic member (not shown) having elasticity in the width direction W.
  • the absorbent body 40 is arranged at least in the inseam area S3.
  • the absorbent body 40 may be arranged over the anterior region S1, the posterior region S2 and the inseam region S3.
  • the absorbent main body 40 is configured as a separate body from the front exterior body 20 and the rear exterior body 30, and is joined to the front exterior body 20 and the rear exterior body 30 in the front region S1 and the rear region S2, respectively. Good.
  • the absorbent body 40 (absorbent article 1) has at least an absorber 50 arranged in the inseam area S3.
  • the absorber 50 has at least an absorption core 51.
  • the absorption core 51 contains an absorption material that absorbs the liquid.
  • the absorption core 51 may contain, for example, ground pulp or a highly absorbent polymer (SAP), or a mixture thereof.
  • SAP highly absorbent polymer
  • the absorption core 51 is arranged at least in the inseam area S3.
  • the absorption core 51 may be arranged in the front side region S1 and may be arranged in the rear side region S2.
  • the absorption core 51 may extend from the front side region S1 to the rear side region S2 in the front-rear direction L.
  • the absorption core 51 may have a constricted portion 512 in which both side edges of the absorption core 51 in the width direction W are constricted inward in the width direction W in a plan view of the absorber 50. ..
  • the constriction portion 512 may be provided in the inseam area S3.
  • the absorber 50 is provided with a squeezed portion 55 squeezed in the thickness direction. The details of the pressing portion 55 will be described later.
  • the absorption core 51 may have a bending guide portion 515 that facilitates bending of the absorption core 51.
  • the bending guide portion 515 can induce deformation of the portion sandwiched between the wearer's legs. As a result, the absorber 50 can be deformed as intended.
  • the bending guide portion 515 may be a recess recessed in the thickness direction T, or may be a slit penetrating the absorption core 51 in the thickness direction T.
  • the basis weight of the absorbent material in the bending induction portion 515 may be lower than the basis weight of the absorbent material in the pressing portion 55.
  • the bending guide portion 515 may be provided adjacent to the constricted portion 512 in the width direction W.
  • the absorber 50 may have a core wrap 52 that covers the absorption core 51.
  • the core wrap 52 sandwiches the absorption core 51 in the thickness direction T.
  • the core wrap 52 may extend outward in the front-rear direction L from the absorption core 51.
  • the trailing edge 52R of the core wrap 52 may be behind the trailing edge 51R of the absorbing core 51, and the front edge 52F of the core wrap 52 ,
  • the absorption core 51 may be arranged at the same position as the front end edge 51F.
  • the core wrap 52 may be made of, for example, a tissue or a non-woven fabric.
  • the absorbent body 40 includes a skin surface sheet 41 (see FIG. 2) located on the skin surface side T1 of the absorber 50, and a liquid impermeable sheet (not shown) located on the non-skin surface side T2 of the absorber 50. It may have a main body sheet 43 (see FIG. 1) arranged on the non-skin surface side T2 of the liquid impermeable sheet.
  • the skin surface sheet 41 has a center sheet 41A that covers the center of the absorber 50 in the width direction W, and a pair of side sheets 41B that cover the outer portion of the center sheet 41A on the skin surface side T1 of the center sheet 41A. You can.
  • the skin surface sheet 41 and the main body sheet 43 may be liquid-permeable, and may be made of, for example, a non-woven fabric.
  • the liquid-impermeable sheet may be impermeable as long as it is impermeable, and may be made of, for example, a film.
  • the detailed configuration of the absorber 50 will be described with reference to FIGS. 2 to 4.
  • the absorber 50 is provided with a squeezed portion 55 squeezed in the thickness direction T.
  • the squeezing section 55 has a first squeezing section 551 and a second squeezing section 552.
  • the squeezing section 55 may further include a third squeezing section 553.
  • the first squeezed portion 551 has a grid pattern in the plan view of the absorber 50.
  • the first squeezing portion 551 may be composed of a plurality of squeezing portions intermittently provided so as to have a grid pattern.
  • the first pressing portion 551 may be composed of a linear pressing portion 551a extending linearly and a bending pressing portion 551b extending while bending.
  • the first squeezing portion 551 may or may not extend from the front edge 50F of the absorber 50 to the trailing edge 50R (see FIG. 3).
  • the first squeezing portion 551 may be provided at the center of the absorber 50 in the width direction W.
  • the first squeezing portion 551 may not be provided at the side end portion of the absorber 50 in the width direction W.
  • the first pressing portion 551 may be provided in a region where the absorption core 51 does not exist.
  • the second squeezed portion 552 has a pattern different from the grid pattern in the plan view of the absorber 50.
  • the second pressing portion 552 may be provided in the inseam area S3.
  • the second squeezed portion 552 is a portion where the absorber is pressed in a planar shape.
  • the second squeezing portion 552 may be provided behind the central CL of the absorbent article 1 in the anteroposterior direction L. Therefore, the second squeezing portion 552 may be arranged in the posterior inseam region S3R.
  • the front edge of the second squeezed portion 552 may be located posterior to the central CL of the absorbent article 1 in the anteroposterior direction L.
  • the second squeezing portion 552 may straddle the center of the center CW of the absorbent article 1 in the width direction W.
  • the second pressing portion 552 may extend in the width direction W.
  • the second squeezed portion 552 may have a rectangular shape.
  • the length in the width direction of the second squeezing portion 552 may coincide with the length in the width direction of the region where the first squeezing portion 551 is provided.
  • the second squeezing portion 552 may be separated from the outer edge of the absorption core and may be located inside the outer edge of the absorption core in the width direction.
  • the second squeezing portion 552 may be arranged on the front side of the center of the posterior inseam region S3R in the anteroposterior direction L. As a result, the absorber 50 is less likely to shrink in the width direction W than the second squeezing portion 552, and it becomes easier to secure a storage space for stool. It is sufficient that at least a part of the second squeezed portion 552 is arranged in front of the center of the posterior inseam region S3R in the anteroposterior direction L, but the entire area of the second squeezed portion 552 is before and after the posterior inseam region S3R. It may be arranged in front of the center of the direction L. The trailing edge of the second squeezed portion 552 may be located anterior to the center of the posterior inseam region S3R in the anteroposterior direction L.
  • the absorbent article 1 may have a region where the first squeezed portion 551 and the second squeezed portion 552 overlap in a plan view of the absorber 50.
  • the area occupied by the second squeezed portion 552 per unit area is larger than the area occupied by the first squeezed portion 551 per unit area.
  • the rigidity of the region where the second pressing portion 552 is provided becomes higher than the rigidity of the region where the first pressing portion 551 is provided, so that the deformation of the absorber 50 can be suppressed.
  • the area of the region R1 in which the grid pattern is formed by the first squeezed portion 551 may be larger than the area of the second squeezed portion 552.
  • the second squeezing section 552 is provided in a narrow range as compared with the first squeezing section 551. Therefore, by narrowing the region with high rigidity to a narrow range, it is possible to prevent the wearer from deteriorating the wearing comfort of the absorbent article 1 due to the rigidity.
  • the thickness h1 of the absorber in the region where the first squeezed portion 551 is provided may be thicker than the thickness h2 of the absorber in the region where the second squeezed portion 552 is provided. Therefore, the depth of the recess in the first squeezed portion 551 may be shallower than the depth of the recess in the second squeezed portion 552. As a result, the rigidity of the first squeezed portion 551 can be reduced to the rigidity of the second squeezed portion 552, and the rigidity of the first squeezed portion 551 provided in a wider range than the second squeezed portion 552 makes the absorbent article. It is possible to suppress the deterioration of the wearing comfort of 1.
  • the third squeezed portion 553 has a pattern different from the grid pattern in the plan view of the absorber 50.
  • the third squeezing section 553 is provided on the front side of the second squeezing section 552.
  • the third squeezing portion 553 may be provided on the front side of the central CL of the absorbent article 1 in the front-rear direction L.
  • the third pressing portion 553 may be arranged in the anterior inseam region S3F.
  • the trailing edge of the third squeezed portion 553 may be located anterior to the center CL of the absorbent article 1 in the anteroposterior direction L, and may be located anterior to the center of the anterior inseam region S3F in the anteroposterior direction L.
  • the third squeezing portion 553 may straddle the center of the center CW of the absorbent article 1 in the width direction W. As shown in FIG. 3, the third squeezing portion 553 may extend in the width direction W.
  • the third squeezed portion 553 may extend in the width direction W so as to have a convex shape toward the rear side in the plan view of the absorber 50.
  • the trailing edge of the third squeezed portion 553 may be curved outward in the front-rear direction L from the inside to the outside in the width direction W.
  • the third pressing portion 553 may have a crescent shape.
  • the third squeezing portion 553 may be provided on the front side of the constricting portion 512.
  • the third pressing portion 553 may be provided on the front side of the front end edge 512F of the constricted portion 512.
  • the third pressing portion 553 is arranged so as to straddle the boundary between the front side region S1 and the inseam region S3. Therefore, the third pressing portion 553 overlaps the front exterior body 20 in the thickness direction T.
  • the third pressing portion 553 may be arranged only in the anterior side region S1 or may be arranged only in the inseam region S3.
  • the absorber 50 includes a region provided with only the first squeezed portion 551, a region provided with only the second squeezed portion 552, a region provided with only the third squeezed portion 553, and a first squeezed portion.
  • a region provided with the first squeezed portion 551 and the second squeezed portion 552 and a region provided with the first squeezed portion 551 and the third squeezed portion 553 are provided.
  • the rigidity of the absorber 50 can be changed between the region where the first pressing portion 551 is provided and the region where the second pressing portion 552 is provided.
  • the first squeezed portion 551 has diffusivity of excrement on the absorber 50, and the second squeezed portion is added to the first squeezed portion 551.
  • the absorber 50 is easily deformed in the width direction W by being sandwiched between the wearer's legs.
  • the rigidity of the absorber 50 in the rear inseam area S3R can be increased. As a result, the absorber 50 is less likely to enter the groove (intergluteal cleft) of the buttocks, and a storage space for excrement (feces) can be secured.
  • the squeezing portion 55 has the third squeezing portion 553, when the absorber behind the third squeezing portion 553 is deformed, the rigidity of the third squeezing portion 553 causes it to be higher than that of the third squeezing portion 553. The front part is less likely to be linked to the deformation of the absorber on the rear side.
  • the length of the absorption core 51 in the width direction is reduced by the constricted portion 512, when the wearer's leg sandwiches the constricted portion 512, the portion sandwiched between the legs is easily deformed. Since the third pressing portion 553 is provided on the front side of the constricted portion 512, the wearer can suppress a sense of discomfort due to the rigidity of the absorber 50. In addition, since the third squeezed portion 553 is provided on the front side of the constricted portion 512, the deformation of the portion sandwiched between the wearer's legs is not hindered, and the rigidity of the third squeezed portion 553 increases.
  • the third squeezed portion 553 overlaps with the front exterior body 20 in the thickness direction T, the front exterior body 20 is deformed in conjunction with the deformation of the absorber 50 due to the rigidity of the third squeezed portion 553. Can be suppressed. As a result, wrinkles are less likely to occur on the front exterior body 20, and excrement can be prevented from leaking from the ventral side. Further, when a part of the absorber 50 provided behind the third squeezed portion 553 is deformed, the deformation of the absorber 50 is in the width direction W along the convex shape of the third squeezed portion 553. It is escaped to the outside. Therefore, it is possible to suppress the deformation of the absorber in the portion in front of the second front pressing portion.
  • the first squeezing portion 551 is composed of a plurality of squeezing portions, the first squeezing portion 551 absorbs the first squeezing portion 551 as compared with the case where the first squeezing portion 551 is composed of continuously extending squeezing portions. It is possible to suppress an increase in the rigidity of the body 50. Therefore, it becomes easier to fit the absorber to the wearer's body while maintaining diffusivity.
  • FIG. 5 is a diagram for explaining a method of manufacturing the absorber 50.
  • FIG. 5A shows the members viewed from the transverse direction TD (upper side), and
  • FIG. 5B shows the members viewed from the crossing direction CD.
  • FIG. 6 is a diagram for explaining an absorber manufacturing apparatus according to an embodiment.
  • FIG. 6A is a diagram for explaining the roll of the first squeezing device, and is a developed view of the outer peripheral surface of the roll of the first squeezing device developed on a plane.
  • FIG. 6B is a schematic cross-sectional view taken along the F6B-F6B cross section in FIG. 6A.
  • FIG. 6C is a diagram for explaining the first roll of the second squeezing device, and is a developed view of the outer peripheral surface of the roll of the second squeezing device developed on a plane.
  • FIG. 6D is a schematic cross-sectional view taken along the F6D-F6D cross section in FIG. 6C.
  • the direction in which the component parts in the manufacturing process are conveyed is shown as the transport direction MD
  • the direction intersecting the transport direction is shown as the cross direction CD
  • the direction orthogonal to the transport direction MD and the cross direction CD is shown as the transverse direction TD.
  • the absorber 50 can be manufactured by using the manufacturing apparatus 100 according to the embodiment.
  • the manufacturing apparatus 100 may include a coating apparatus 120, a squeezing apparatus 130, and a cutting apparatus 140.
  • the manufacturing apparatus 100 may have a conveying device for conveying each member.
  • the covering device 120 is a device for folding back the core wrap sheet 52C so that the core wrap sheet 52C covers the absorption core 51.
  • the covering device 120 may have a pair of bending guide members (not shown) arranged side by side in the CD direction as a main body. The covering device 120 is used in the step S20 described later.
  • the squeezing device 130 is a device that provides the squeezing portion 55 by squeezing at least the absorption core by a plurality of convex portions.
  • the squeezing device 130 may have a first squeezing device 131 and a second squeezing device 132.
  • the first squeezing device 131 is a device for providing the first squeezing portion 551.
  • the first squeezing device 131 may have a pair of upper and lower first rolls 131A and 131B as an example of the pair of rotating members.
  • the pair of first rolls 131A and 131B are supported by bearings (not shown) so that they can rotate around a rotation axis parallel to the CD direction. Therefore, the absorption continuum 50C sent to the interval between the outer peripheral surfaces of the pair of first rolls 131A and 131B passes through the interval G41 and is sent downstream in the MD direction.
  • the outer peripheral surface 131S of the first roll 131A may be provided with the first convex portion 151.
  • the first convex portion 151 may have, for example, a linear convex portion 151a for forming the linear pressing portion 551a and a bending convex portion 151b for forming the bending pressing portion 551b.
  • the outer peripheral surface of the first roll 131B may be a smooth surface without the first convex portion 151.
  • the second squeezing device 132 is a device for providing the second squeezing portion 552.
  • the second squeezing device 132 may have a pair of upper and lower second rolls 132A and 132B, similarly to the first squeezing device 131.
  • the second squeezing device 132 may be provided on the upstream side of the first squeezing device 131.
  • the outer peripheral surface 132S of the second roll 132A may be provided with a second convex portion 152 for forming the second pressing portion 552. Further, the outer peripheral surface 132S of the second roll 132A may be provided with a third convex portion 153 for forming the third pressing portion 553.
  • the outer peripheral surface of the second roll 132B may be a smooth surface without the second convex portion 152 and the third convex portion 153.
  • the height of the second convex portion 152 is higher than the height of the first convex portion 151. Therefore, the second convex portion 152 can be squeezed deeper than the first convex portion 151. Further, since the height of the third convex portion 153 is higher than the height of the first convex portion 151, the third convex portion 153 can be pressed deeper than the first convex portion 151.
  • the cutting device 140 is a device in which the absorber 50 cuts the absorption continuum 50C which is continuous in the front-rear direction L.
  • the cutting device 140 may have, for example, a pair of upper and lower third rolls 140A and 140B.
  • the third roll 140A may be a cutter roll having a cutter blade 141 on the outer peripheral surface of the third roll 140A.
  • the third roll 140B may be an anvil roll that receives the cutter blade 141.
  • the method for producing the absorber 50 includes steps S10 to S40.
  • Step S10 is a step of arranging the absorption core 51 on the core wrap sheet 52C constituting the core wrap 52.
  • the absorption core 51 manufactured by laminating the absorption materials may be arranged on the core wrap sheet 52C.
  • the absorption core 51 may have a bending guide portion 515.
  • the bending guide portion 515 may be formed by reducing the amount of the absorbent material laminated in the bending guide portion 515.
  • Step S20 is a step of covering the absorption core 51 with the core wrap sheet 52C.
  • Step S20 can be performed using the covering device 120.
  • the core wrap sheet 52C is bent so that each end in the CD direction is located above the absorption core 51, and is folded inward in the CD direction.
  • the folded portion of the core wrap sheet 52C is folded up and down on the absorption core 51, so that the outer peripheral surface of the absorption core 51 is covered with the core wrap sheet 52C.
  • Step S30 is a pressing step of providing the pressing portion 55 by pressing at least the absorption core 51 in the thickness direction T.
  • the first pressing portion 551 having a grid pattern in the plan view of the absorber 50 and the second pressing section 552 having a pattern different from the grid pattern in the plan view of the absorber 50.
  • a third pressing portion 553 may be further provided as the pressing portion 55.
  • the pressing portion 55 may be provided by pressing the absorption core 51 and the core wrap sheet 52C.
  • the step S30 may include a step S32 and a step S34. Step S32 can be performed using the second squeezing device 132, and step S34 can be performed using the first squeezing device 131.
  • the second squeezing portion 552 is provided by squeezing the absorption core 51 and the core wrap sheet 52C by the second convex portion 152 provided on at least one outer peripheral surface 132S of the pair of second rolls 132A and 132B. ..
  • the third squeezed portion 553 is provided by squeezing the absorption core 51 and the core wrap sheet 52C by the third convex portion 153 provided on at least one outer peripheral surface 132S of the pair of second rolls 132A and 132B. You can.
  • the first squeezing portion 551 is provided by squeezing the absorption core 51 and the core wrap sheet 52C by the first convex portion 151 provided on at least one outer peripheral surface 131S of the pair of first rolls 131A and 131B. ..
  • the linear pressing portion 551a is provided by pressing the absorption core 51 and the core wrap sheet 52C with the linear convex portion 151a.
  • the bending pressing portion 551b is provided by pressing the absorption core 51 and the core wrap sheet 52C by the bending convex portion 151b.
  • step S32 a second pressing portion 552 that is deeply pressed in the thickness direction T is provided.
  • a third pressing portion 553 that is deeply pressed in the thickness direction T may be provided.
  • step S34 after the second pressing portion is provided, the first pressing portion 551 that is shallowly pressed in the thickness direction T is provided.
  • step S30 the first squeezing section 551 is provided in the squeezing region where the second squeezing section 552 is provided.
  • step S34 the absorption core 51 and the core wrap sheet 52C are squeezed only in a part of the squeezing region (that is, the region where the second squeezing portion 552 is provided) in the transport direction MD.
  • the absorption core 51 and the core wrap sheet 52C are not squeezed in all the squeezed regions. Similarly, the absorption core 51 and the core wrap sheet 52C are squeezed only in a part of the region where the third squeezing portion 553 is provided.
  • Step S40 is a step of cutting the absorption continuum 50C.
  • Step S40 can be performed using the cutting device 140.
  • the absorption continuum 50C is cut at the same position as the front end edge 51F of the absorption core 51 or at a position in front of the front end edge 51F of the absorption core 51. As a result, the absorber 50 can be manufactured.
  • the rigidity is changed between the region where the first squeezed portion 551 is provided and the region where the second squeezed portion 552 is provided. be able to. Therefore, while the first squeezing portion 551 has diffusivity of excrement on the absorber 50, by providing the second squeezing portion 552 in addition to the first squeezing portion 551, the absorber 50 is twisted. It is possible to manufacture the absorbent body 50 according to the absorbent article 1 which can achieve both restraint and fit of the absorbent body 50 to the wearer's body. Further, the absorbent article 1 can be manufactured by using the absorber 50 manufactured as described above.
  • step S30 since the squeezing portion 55 is provided by squeezing the absorption core 51 and the core wrap sheet 52C, the diffusibility of excrement is increased in the case where the absorber 50 has the core wrap 52 covering the absorption core 51.
  • the absorber 50 according to the absorbent article 1 that can be maintained can be manufactured.
  • the step S30 includes a step S32 in which the second squeezing device 132 is used and a step S34 in which the first squeezing device 131 is used. Since the first convex portion 151 and the second convex portion 152 cannot be arranged at the same position in one roll, the positions where the first pressing portion 551 and the second pressing portion 552 are provided can be restricted. Therefore, by using the first rolls 131A and 131B and the second rolls 132A and 132B, the first squeezing portion 551 and the second squeezing portion 552 can be provided at arbitrary positions.
  • step S30 the core wrap sheet 52C provided with the second pressing portion 552 and the third pressing portion 553, which are deep pressing portions by deeply pressing in the thickness direction T, is shallowly pressed to perform pressing.
  • the amount of change in the thickness direction T of the core wrap sheet 52C can be reduced. Therefore, when the shallow pressing portion 55 and the deep pressing portion 55 are provided, it is possible to prevent the core wrap sheet 52C from being torn.
  • step S34 the absorption core 51 and the core wrap sheet 52C are squeezed only in a part of the squeezing region (that is, the region where the second squeezing portion 552 is provided) in the transport direction MD.
  • a part of the squeezing region that is, the region where the second squeezing portion 552 is provided
  • the damage to the core wrap sheet 52C due to squeezing can be reduced, and the core wrap sheet 52C can be prevented from being torn.
  • FIG. 7 is a schematic cross-sectional view of the absorber according to the modified example.
  • the first squeezing portion 551 is provided on the front lattice squeezing portion 551F provided on the front side of the center CL in the anteroposterior direction L of the absorbent article 1 and on the rear side of the center CL. It may have a rear grid squeezing portion 551R.
  • the rear lattice pressing portion 551R may have a lattice pattern different from that of the front lattice pressing portion 551F.
  • the area occupied by the rear lattice pressing portion 551R per unit area may be larger than the area occupied by the front lattice pressing portion 551F per unit area.
  • the front lattice pressing portion 551F may be arranged between the third pressing portion 553 and the second pressing portion 552 in the front-rear direction L.
  • the rear lattice pressing portion 551R may be arranged behind the second pressing portion 552 in the front-rear direction L.
  • the first squeezed portion 551 and the second squeezed portion 552 do not have to overlap.
  • the second squeezing portion 552 may be provided at a position distant from the first squeezing portion 551.
  • the distance between the first squeezed portion 551 and the second squeezed portion 552 in the front-rear direction L may be longer than the length in the front-rear direction L of one grid composed of the first squeezed portion 551.
  • the separation distance L21 between the front lattice pressing portion 551F and the second pressing portion 552 in the front-rear direction L may be longer than the front lattice length L11. In FIG. 7, the separation distance L21 is shorter than the length L11.
  • the separation distance L22 between the rear grid pressing portion 551R and the second pressing portion 552 in the front-rear direction L is the rear grid length L12 which is the length of one lattice composed of the rear grid pressing portion 551R in the front-rear direction L. May be longer than. Further, the separation distance between the first pressing portion 551 and the third pressing portion 553 in the front-rear direction L may be longer than the length in the front-rear direction L of one lattice composed of the first pressing portion 551.
  • the separation distance L3 between the front lattice pressing portion 551F and the third pressing portion 553 in the front-rear direction L is the length of the front-lattice L in the front-rear direction L of one lattice composed of the front lattice pressing portion 551F. It may be longer than the length L11. In FIG. 7, the separation distance L3 is longer than the front grid length L11. As shown in FIG. 7, the third pressing portion 553 may be provided on the front side of the first pressing portion 551. In the plan view of the absorber 50, the area occupied by the third squeezed portion 553 per unit area may be larger than the area occupied by the first squeezed portion per unit area.
  • the first squeezing portion 551 As described above, in the absorbent article according to the modified example, since the second squeezing portion 552 is provided at a position away from the first squeezing portion 551 in the plan view of the absorber 50, the first squeezing portion 551 As compared with the case where the first pressing portion 551 and the second pressing portion 552 are continuously provided, the force applied to one of the first pressing portion 551 and the second pressing portion 552 is less likely to be transmitted to the other. Therefore, the first squeezing section 551 and the second squeezing section 552 are less likely to be influenced by each other, and the functions of the first squeezing section 551 and the second squeezing section 552 can be exhibited.
  • the separation distance L21 and / or the separation distance L22 between the first pressing portion 551 and the second pressing portion 552 in the front-rear direction L is larger than the length in the front-rear direction L of one lattice composed of the first pressing portion 551. If it is long, the force applied to one of the first pressing portion 551 and the second pressing portion 552 becomes more difficult to be transmitted to the other. Therefore, the functions of the first squeezing section 551 and the second squeezing section 552 can be further exerted.
  • the separation distance L3 between the first pressing portion 551 and the third pressing portion 553 in the front-rear direction L is longer than the length in the front-rear direction L of one lattice composed of the first pressing portion 551, the first The force applied to one of the pressing portion 551 and the third pressing portion 553 becomes more difficult to be transmitted to the other. Therefore, the functions of the first squeezing section 551 and the third squeezing section 553 can be further exerted.
  • the area occupied by the rear lattice pressing portion 551R per unit area is larger than the area occupied by the front lattice pressing portion 551F per unit area, so that the rear lattice pressing portion 551R is provided.
  • the area where the front grid is squeezed has high rigidity, and the area where the front lattice pressing portion 551F is provided has low rigidity. Therefore, on the front side where urine is discharged, the absorber 50 is easily deformed because a region having a relatively low rigidity is provided while maintaining diffusivity by the front lattice pressing portion 551F.
  • the absorber 50 can easily approach the wearer's body (specifically, the urination port), so that the absorber 50 can easily absorb urine.
  • the absorber 50 is less likely to be deformed because a region having a relatively high rigidity is provided while maintaining diffusivity by the rear lattice pressing portion 551R.
  • the absorber 50 is less likely to enter the groove (intergluteal cleft) of the buttocks, and a storage space for excrement (feces) can be secured.
  • the area occupied by the third pressed portion 553 per unit area is larger than the area occupied by the first pressed portion per unit area.
  • the rigidity of the region where the third squeezing portion 553 is provided becomes higher than the rigidity of the region where the first squeezing portion 551 is provided, so that the absorber in the portion in front of the third squeezing portion 553 Deformation of 50 can be suppressed.
  • the second pressing portion 552 may be a pressing portion of another pattern.
  • the second squeezing portion 552 may be a plurality of punctate squeezing portions.
  • the distance between the plurality of punctate squeezed portions in the front-rear direction L may be, for example, 3.5 mm, and the distance between the plurality of punctate squeezed portions in the width direction W may be 1.5 mm.
  • the third pressing portion 553 may be a pressing portion of another pattern.
  • the present invention is not limited to this.
  • the first squeezing portion 551 and the second squeezing portion 552 can be provided by the pair of rolls.
  • the first squeezing portion 551 and the second squeezing portion 552 may be provided by a pair of rolls.
  • a first squeezing portion 551, a second squeezing portion 552, and a third squeezing portion 553 may be provided by a pair of rolls.
  • the second squeezing device 132 has the second convex portion 152 and the third convex portion 153, but the present invention is not limited to this.
  • the second squeezing device 132 has a second convex portion 152 and does not have to have a third convex portion 153. Therefore, the third squeezing portion 553 may not be provided, and the third squeezing device different from the first squeezing device 131 and the second squeezing device 132 may have the third convex portion 153.
  • the third squeezing device is arranged on the upstream side of the transport direction MD with respect to the first squeezing device 131. Good.
  • the third squeezing device is arranged on the upstream side of the transport direction MD with respect to the second squeezing device 132. Good.
  • the third squeezing section 553 is formed by squeezing shallower than the second squeezing section 552, the third squeezing device is arranged on the downstream side of the transport direction MD with respect to the second squeezing device 132. Good.
  • the second squeezed portion 552 and the third squeezed portion 553 are provided first and the first squeezed portion 551 is provided later, but the present invention is not limited to this.
  • the first squeezing section 551 may be provided first, and the second squeezing section 552 and the third squeezing section 553 may be provided later.
  • the absorption core 51 and the core wrap sheet 52C have been squeezed, but the present invention is not limited to this.
  • it may be squeezed together with other sheets.
  • the other sheet may be, for example, a skin surface sheet 41 or a second sheet arranged between the skin surface sheet 41 and the absorber 50.
  • Absorbent article 15: Exterior body, 20: Front exterior body, 30: Rear exterior body, 40: Absorbent body, 50: Absorbent, 51: Absorption core, 515: Bending guide, 52: Core wrap, 55: squeezing part, 551: first squeezing part, 551F: front lattice squeezing part, 551R: rear lattice squeezing part, 551a: linear squeezing part, 551b: bending squeezing part, 552: second squeezing part, 353: third squeezing part. Part, 100: Manufacturing equipment, 120: Coating equipment, 130: Squeezing equipment, 131: First squeezing equipment, 140: Cutting equipment

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  • Health & Medical Sciences (AREA)
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  • Heart & Thoracic Surgery (AREA)
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  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2020/024257 2019-06-20 2020-06-19 吸収性物品、吸収体の製造方法、及び吸収体の製造装置 WO2020256144A1 (ja)

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JP7476139B2 (ja) * 2021-06-14 2024-04-30 大王製紙株式会社 使い捨ておむつ
JP2023162995A (ja) 2022-04-27 2023-11-09 大王製紙株式会社 パンツタイプ使い捨て着用物品
JP2024048964A (ja) 2022-09-28 2024-04-09 大王製紙株式会社 吸収性物品
JP2024124805A (ja) 2023-03-03 2024-09-13 大王製紙株式会社 吸収性物品

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JP2017202238A (ja) * 2016-05-13 2017-11-16 ユニ・チャーム株式会社 吸収性物品
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JP2017202238A (ja) * 2016-05-13 2017-11-16 ユニ・チャーム株式会社 吸収性物品
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