WO2020179658A1 - Article absorbant - Google Patents

Article absorbant Download PDF

Info

Publication number
WO2020179658A1
WO2020179658A1 PCT/JP2020/008277 JP2020008277W WO2020179658A1 WO 2020179658 A1 WO2020179658 A1 WO 2020179658A1 JP 2020008277 W JP2020008277 W JP 2020008277W WO 2020179658 A1 WO2020179658 A1 WO 2020179658A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
exterior body
width direction
elastic member
absorbent
Prior art date
Application number
PCT/JP2020/008277
Other languages
English (en)
Japanese (ja)
Inventor
伊藤　幸博
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
Publication of WO2020179658A1 publication Critical patent/WO2020179658A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—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
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs

Definitions

  • the present invention relates to absorbent articles such as disposable diapers.
  • the absorbent article described in Patent Document 1 has an absorbent main body having an absorbent core and an exterior body arranged on the non-skin facing surface side of the absorbent main body.
  • a plurality of elastic members that can be expanded and contracted in the width direction are arranged on the exterior body at intervals in the front-rear direction.
  • a non-functionalized region in which the contracting force of the elastic member is not expressed is provided in a region of the exterior body facing the absorbent main body.
  • the non-functionalized region is formed by a large number of protrusions and cutter blades that divide the elastic member, and a large number of embossed pins that harden the elastic member by heat sealing (paragraph 0045 of Patent Document 1).
  • the contractile force of the elastic member of the absorbent article of Patent Document 1 is configured not to be expressed in the non-functionalized region facing the absorbent main body, and is expressed in regions on both sides in the width direction of the non-functionalized region. .. In the regions on both sides in the width direction from the non-functional region, the contraction force is divided in the non-functional region, and the contraction forces are not continuous with each other. Therefore, the contraction force by the regions on both sides in the width direction of the non-functionalized region is not sufficiently exerted, and the region outside the absorbent body in the width direction and the outer edge of the absorbent body are sufficiently fitted to the body. There were things I could't do. If the fit of the outer edge of the absorbent main body is reduced, side leakage of body fluid may occur.
  • the region facing the absorbent main body also comes into close contact with the wearer's waist.
  • the shape of the waist around the waist of the wearer projects outward due to the bulge of the abdomen in the region facing the absorbent main body. Therefore, if the region facing the absorbent main body comes into close contact with the bulge of the abdomen of the wearer, the wearing feeling may be reduced.
  • the wearer who uses the absorbent article often falls asleep. When lying down, body pressure is likely to be applied to the widthwise center of the back of the absorbent article.
  • the absorbent article is further brought into close contact with the body when body pressure is applied, and the feeling of being tightened becomes stronger. Feeling may be reduced.
  • an object of the present invention to provide an absorbent article which can suppress the lateral leakage of bodily fluid by improving the fitting property at the outer edge of the absorbent main body while suppressing a decrease in wearing feeling.
  • the absorbent article includes a front-rear direction and a width direction orthogonal to the front-rear direction, a crotch region and a pair of waist regions located on both sides of the crotch region in the front-rear direction, and an absorbent core.
  • the exterior body has a pair of sheet materials, and an elastic member that is disposed between the pair of sheet materials and extends in the width direction, and the elastic member is the It has a continuous elastic member that continuously expands and contracts in the width direction from one outer side portion of the exterior body to the other outer side portion of the exterior body, and in the exterior body, in the width direction of the absorbent article.
  • the continuous elastic member can be expanded and contracted to at least one of the non-fixed region in which the continuous elastic member is not fixed to the pair of sheet materials in the center and the pair of sheet materials outside the non-fixed region in the width direction.
  • a pair of fixed regions fixed to the above are provided, and each of the pair of fixed regions is arranged so as to straddle the outer edge of the absorbent body in the width direction.
  • FIG. 5 is a cross-sectional view taken along the CC cross section of the absorbent article shown in FIG. It is an enlarged plan view of an exterior body.
  • the absorbent article has a width direction orthogonal to the front-rear direction and the front-rear direction, a pair of waist circumference areas located on both sides of the inseam area and the inseam area in the front-rear direction, and an absorption core.
  • An absorbent body arranged straddling the inseam area and the waist circumference area, and an exterior body arranged on the non-skin facing surface side of the absorbent body in at least one of the pair of waist circumference areas.
  • the exterior body has a pair of sheet materials, and an elastic member that is disposed between the pair of sheet materials and extends in the width direction, and the elastic member is the It has a continuous elastic member that continuously expands and contracts in the width direction from one outer side portion of the exterior body to the other outer side portion of the exterior body, and in the exterior body, in the width direction of the absorbent article.
  • the continuous elastic member can be expanded and contracted to at least one of the non-fixed region in which the continuous elastic member is not fixed to the pair of sheet materials in the center and the pair of sheet materials outside the non-fixed region in the width direction.
  • a pair of fixed regions fixed to the above are provided, and each of the pair of fixed regions is arranged so as to straddle the outer edge of the absorbent body in the width direction.
  • the continuous elastic member is continuous in the width direction from one outer side portion of the exterior body to the other outer side portion of the exterior body, and is not divided. Therefore, the contraction force of the continuous elastic member is more likely to be developed as compared with the form in which the elastic member is not continuous in the width direction. Since the fixing region to which the continuous elastic member is fixed straddles the outer edge of the absorbent main body, the outer edge of the absorbent main body is fitted by the continuous elastic member, and lateral leakage of body fluid can be suppressed. In addition, a non-fixed area is arranged between the fixed areas. The non-fixed region does not have a fixing means for fixing the continuous elastic member, and is easily deformed flexibly as compared with the fixed region. Therefore, even if the center of the absorbent body in the width direction comes into close contact with the body due to the contraction of the continuous elastic member in the non-fixed region, the discomfort to the body can be reduced and the deterioration of the wearing feeling can be suppressed.
  • the non-fixed region may be arranged at least between the outer edge of the absorbent main body and the outer edge of the absorbent core in the front-back direction.
  • the area outside the absorbent core in the front-rear direction fits the body, and leakage in the front-rear direction can be suppressed.
  • the absorbent core is not arranged on the inner surface (the surface in contact with the body) of the region outside the absorbent core in the front-rear direction, and wrinkles due to the contraction of the continuous elastic member are easily formed. Since the non-fixed region is easily deformed flexibly, it is possible to alleviate the contact of wrinkles on the skin due to the contraction of the continuous elastic member and suppress the deterioration of the wearing feeling.
  • the non-fixed region may be arranged at least in a region outside the absorbent main body in the front-rear direction.
  • the inner surface of the exterior body is in direct contact with the skin, and wrinkles due to the contraction of the continuous elastic member are likely to hit the skin. Since the non-fixed region of the exterior body hits the center of the wearer's waist circumference in the width direction, it is possible to alleviate the contact of wrinkles on the skin due to the contraction of the continuous elastic member and suppress the deterioration of the wearing feeling. Further, the region outside the absorbent main body in the front-rear direction fits the body due to the contraction of the continuous elastic member, and leakage in the front-rear direction can be suppressed.
  • the fixing region may extend from the outer side portions on both sides of the exterior body to the inner side in the width direction, and may be continuous to the outer edge of the absorbent main body.
  • the outer side in the width direction of the absorbent main body also fits the body, and the outer side of the absorbent main body. It is possible to suppress the floating of the edge and further suppress the lateral leakage.
  • the exterior body does not continuously expand and contract in the width direction from one outer side portion of the exterior body to the other outer side portion of the exterior body, and is divided in the width direction.
  • a stretchable region having a continuous elastic member wherein the exterior body extends inward in the width direction from both outer sides of the exterior body, and the non-continuous elastic member is stretchably fixed, and the width.
  • a non-stretchable region in which the non-continuous elastic member is not stretchably fixed is provided between the stretchable regions in the direction, and the non-stretchable region is inside the non-fixed region in the front-rear direction. It may be placed over the absorbent body.
  • the non-stretchable region is provided inside the non-fixed region in the front-rear direction, the contraction of the absorption core in the absorbent body can be suppressed.
  • the absorption performance of body fluid can be enhanced, and by suppressing the generation of wrinkles on the surface of the absorbent core, transmission leakage in the front-back direction can be suppressed.
  • the exterior body is provided in a front torso peripheral area located in front of the inseam area and in a rear torso peripheral area arranged behind the inseam area.
  • the rear exterior body is disposed, and the fixed region includes a front fixed region provided on the front exterior body and a rear fixed region provided on the rear exterior body.
  • the region has a front non-fixed region provided in the front exterior body and a rear non-fixed region provided in the rear exterior body, and the length of the front fixed region in the width direction is the rear
  • the length of the fixed region in the width direction may be longer, and the length of the rear non-fixed region in the width direction may be longer than the length of the front non-fixed region in the width direction.
  • the wearer's excretory opening is located near the front torso area. Therefore, body fluid is more likely to be guided to the area around the front torso than to the area around the rear torso, and front leakage is likely to occur.
  • the length of the front fixed region in the width direction is relatively long, the adhesion of the outer edge of the absorbent body can be improved in the front trunk circumference region, and front leakage can be suppressed.
  • the sheet material and the continuous elastic member are not fixed, and thus it is less likely that the sheet member and the continuous elastic member come into close contact with the body as compared with the fixed region. Since the length of the rear non-fixed region in the width direction is relatively long, it is possible to provide a wide region around the rear trunk that is difficult to adhere to and secure a space for accommodating stool.
  • the exterior body is a front exterior body arranged in the front waist region located on the front side of the crotch region, and a rear waist region located on the rear side of the crotch region.
  • a rear exterior body that is disposed, the elastic members are disposed in the front exterior body with a space in the front-rear direction, and a front side that straddles an outer edge of the absorbent main body in the width direction.
  • the front elastic member includes an elastic member and a rear elastic member that is arranged at a distance in the front-rear direction in the rear exterior body and that straddles an outer edge of the absorbent main body in the width direction.
  • the number of may be larger than the number of the rear elastic members.
  • the force for pulling the absorbent main body outward in the width direction in the front exterior body causes the width of the absorbent main body in the rear exterior body to increase. It tends to be stronger than the force that pulls outward in the direction.
  • the outer portion of the rear torso circumference region is connected to the outer portion of the front torso circumference region, and is pulled outward in the width direction via the outer portion of the front torso circumference region. Therefore, the absorptive main body in the back waist region is pulled outward in the width direction, the unevenness of the surface is reduced, and the surface is likely to hit the body.
  • leakage through the gap between the buttocks can be suppressed.
  • the pair of fixed regions may be arranged so as to straddle each of the extension lines extending in the front-rear direction from the outer edge of the absorption core.
  • the extension line is pulled outward in the width direction by the continuous elastic member, and the outer edge of the absorption core is pulled through the extension line. Can also be pulled outward in the width direction.
  • the fit of the outer edge of the absorption core can be improved, and lateral leakage of body fluid can be further suppressed.
  • the non-fixed region may be provided with a joint portion to which the pair of sheet materials are joined.
  • the surface of the sheet material can be controlled by the joint portion.
  • the absorbent article may be a tape type or a pants type.
  • the absorbent article may be a 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 plan view of the disposable diaper 10 according to the present embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA shown in FIG.
  • FIG. 3 is a sectional view taken along the line BB of the absorbent article shown in FIG.
  • FIG. 4 is a sectional view taken along the line CC of the absorbent article shown in FIG.
  • FIG. 1 shows an stretched state in which the absorbent article 10 is stretched to a state in which wrinkles are not formed in a state where the side joint portion 60 described later is unfolded.
  • the members are shown separated in the thickness direction T, but in an actual product, they are in contact with the thickness direction T.
  • the absorbent article 10 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 absorbent article 10 has a thickness direction T orthogonal to 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 and the non-skin surface side T2 facing away from the wearer.
  • the absorbent article 10 has a crotch region S3 and a waist region located outside the crotch region S3 in the front-rear direction.
  • the waist region may include a front waist region that faces the wearer's front waist region (abdomen) and a back waist region S2 that faces the wearer's back waist region (back part).
  • the inseam area S3 faces the wearer's inseam.
  • the crotch region S3 is a region in which a leg opening 66, which will be described later, is formed.
  • the boundary on the inseam area side of the front torso circumference area S1 is the front end edge of the leg circumference opening 66
  • the boundary on the inseam area side of the rear torso circumference area S2 is the rear end edge of the leg circumference opening 66.
  • the absorbent article 10 has an absorbent main body 40 and an exterior body 15.
  • the exterior body 15 is arranged on the non-skin facing surface side of the absorbent body 40 in at least one of the pair of waist circumference areas.
  • the exterior body 15 may include a front exterior body 16 arranged in the front waist region S1 and a rear exterior body 17 arranged in the rear waist region S2.
  • the front exterior body 16 is arranged in a region that overlaps with the absorbent main body 40 and a region that does not overlap with the absorbent main body 40 in the front trunk circumference region S1.
  • the rear exterior body 17 is arranged in a region that overlaps the absorbent main body 40 and a region that does not overlap the absorbent main body 40 in the rear waistline region S2.
  • the front exterior body 16 and the rear exterior body 17 may be separated from each other in the front-rear direction L.
  • the front exterior body 16 and the rear exterior body 17 may be continuous in the front-rear direction L without being separated in the front-rear direction L.
  • the exterior body 15 will be described in detail later.
  • the absorbent article 10 may be provided with a side joint portion 60 in which the outer portion of the front exterior body 16 and the outer portion of the rear exterior body 17 are joined. With the side joint 60 formed, the absorbent article 10 has a waist opening 62 through which the wearer's torso passes, and a pair of leg-surrounding openings 66 into which the wearer's legs are inserted, respectively. Is formed.
  • 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 length of the rear exterior body 17 of the present embodiment in the front-rear direction L is longer than the length of the front exterior body 16 in the front-rear direction L.
  • the rear exterior body 17 extends to the crotch side with respect to the side joint portion 60.
  • 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 the 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 end portion includes a front end portion and a rear end portion, and the outer end edge includes a front end edge and a rear end edge.
  • the absorbent main body 40 is arranged across the front exterior body 16 and the rear exterior body 17.
  • the absorbent main body 40 may be configured as a separate body from the front exterior body 16 and the rear exterior body 17, or may be integrated with the front exterior body 16 and the rear exterior body 17.
  • the absorbent main body 40 may include an absorbing core 45, a top sheet 43 located on the skin surface side T1 of the absorbing core 45, and a back sheet located on the non-skin surface side T2 of the absorbing core 45.
  • the absorbent core 45 may be disposed at least in the crotch region S3, and may span at least one of the pair of waist regions.
  • the absorbent core 45 may include, for example, ground pulp or super absorbent polymer (SAP), or a mixture thereof.
  • the absorption core 45 may be covered by a core wrap.
  • the top sheet 43 is a liquid permeable sheet, and is made of, for example, a non-woven fabric.
  • the top sheet 43 may include a center sheet that covers the center of the absorbent core 45 in the width direction and a side sheet that covers the outer side portion of the center sheet.
  • the back sheet may have a first back sheet 41 and a second back sheet 42 arranged on the non-skin surface side T2 of the first back sheet 41.
  • the first backsheet 41 may be made of a liquid permeable film.
  • the second back sheet 42 may be made of a non-woven fabric.
  • the configuration described as the exterior body 15 may be a configuration provided on both the front exterior body 16 and the rear exterior body 17.
  • the exterior body 15 has a pair of sheet materials 18 and an elastic member 50 arranged between the pair of sheet materials 18 and extending in the width direction.
  • the pair of sheet materials 18 have a first sheet 18A arranged on the non-skin surface side T2 of the absorbent main body 40, and a second sheet 18B located on the non-skin surface side T2 of the first sheet 18A. Good.
  • the first sheet 18A and the second sheet 18B may be separate sheets or the same sheet.
  • the exterior body 15 may be provided with another sheet material in addition to the first sheet 18A and the second sheet 18B.
  • the elastic member 50 is arranged between the first sheet 18A and the second sheet 18B.
  • a plurality of elastic members 50 are arranged along the width direction W and at intervals in the front-rear direction L.
  • the elastic member 50 includes continuous elastic members 51 and 52 that continuously expand and contract in the width direction from one outer side portion of the exterior body 15 to the other outer side portion of the exterior body 15, and an exterior body from one outer side portion of the exterior body 15. It may have a discontinuous elastic member 53 that is divided in the width direction W without continuously expanding and contracting to the other outer portion of the width direction W.
  • the structure which continuously expands/contracts in the width direction from one outer side portion of the exterior body 15 to the other outer side part of the exterior body 15 has a configuration in which the front exterior body 16 continuously expands/contracts in the width direction W, and
  • the configuration may be such that the exterior body 17 continuously expands and contracts in the width direction W, and does not have to be a configuration that continuously expands and contracts across both the front exterior body 16 and the rear exterior body 17.
  • the outer portion of the exterior body 15 arranged on the continuous elastic members 51 and 52 may be a side joint portion 60. That is, the continuous elastic members 51 and 52 may continuously expand and contract in the width direction W from one side joint portion 60 of the exterior body 15 to the other side joint portion 60 of the exterior body 15.
  • the continuous elastic member includes a waist continuous elastic member 51 extending inward in the front-rear direction L from the waist opening portion 62, and a waist continuous elastic member 52 arranged inside the waist continuous elastic member 51 in the front-rear direction L. You can do it.
  • the waist circumference continuous elastic member 52 constitutes the continuous elastic member of the present invention.
  • a plurality of continuous elastic members may be arranged at intervals in the front-rear direction L. Five waist continuous elastic members 51 of this embodiment are arranged in each of the front exterior body 16 and the rear exterior body 17, and two waist continuous elastic members 52 are arranged in the front exterior body 16 and the rear exterior body Four of them are arranged on the body 17.
  • the waist continuous elastic member 51 is fixed to the pair of sheet members 18 so as to be capable of expanding and contracting between one outer side portion of the exterior body 15 and the other outer side portion of the exterior body 15.
  • the waist continuous elastic member 51 and the pair of sheet materials 18 are fixed over the entire region where the waist continuous elastic member 51 is arranged. Therefore, the waist continuous elastic member 51 and the sheet material 18 integrally expand and contract over the entire region where the waist continuous elastic member 51 is arranged. At least a part of the waist continuous elastic member 51 may be colored in a color different from that of the sheet material. In the region where the waist continuous elastic member 51 is arranged, the sheet material 18 is in close contact with the skin over the entire width direction W, and leakage can be suppressed.
  • the means for fixing the elastic member is not particularly limited, and in the present embodiment, the elastic member 50 is joined to the sheet material 18 by the HMA type adhesive HM.
  • the HMA type adhesive HM is shown in FIGS. 2, 3 and 4.
  • the HMA type adhesive HM may be applied to the elastic member 50 or the sheet material 18.
  • the waist circumference continuous elastic member 52 is arranged from one outer portion of the exterior body 15 to the other outer portion of the exterior body 15, and is partially fixed to the sheet material 18. Specifically, in the exterior body 15, in the center of the absorbent article 10 in the width direction W, the waistline continuous elastic member 52 is not fixed to the pair of sheet materials 18, and the non-fixed area R12 and the non-fixed area R12. Also, on the outer side in the width direction W, a pair of fixing regions R11 in which the waist elastic member 52 is stretchably fixed to at least one of the pair of sheet materials 18 is provided.
  • the outer edge of the fixed region R11 and the non-fixed region R12 straddle the plurality of waist-continuous elastic members 52. Is formed. Therefore, the outer end edges of the fixed region R11 and the non-fixed region R12 are the waist circumference continuous elastic member 52 located on the frontmost side in the front exterior body 16 and the waist circumference continuous elastic member located on the rearmost side in the rear exterior body 17. 52 and.
  • the inner edge of the fixed region R11 and the inner edge of the non-fixed region R12 are a continuous elastic member around the waist located on the rearmost side in the front exterior body 16 and a continuous waist circumference located on the front side in the rear exterior body 17.
  • the fixed region R11 and the non-fixed region R12 in the front exterior body extend in the front-rear direction across the waist-surrounding continuous elastic member 52 located at the frontmost side and the waist-periphery continuous elastic member 52 located at the rearmost side.
  • the fixed region R11 and the non-fixed region R12 in the rear exterior body extend in the front-rear direction across the waist-circumferential continuous elastic member 52 located at the frontmost side and the waist-circumferential continuous elastic member 52 located at the rearmost side. ing.
  • the waist circumference continuous elastic member 52 expands and contracts together with the sheet material 18 in the fixed region R11, and expands and contracts while floating with respect to the sheet material 18 in the non-fixed region R12.
  • the rigidity is lower than that in the fixed region R11 and the elastic deformation is likely to occur flexibly.
  • the absorbent article 10 does not continuously fix the waist elastic member 52 to the sheet material 18, the material cost of the fixing means can be reduced.
  • the waist continuous elastic member 52 of the front exterior body 16 is arranged in a region facing the bulge of the abdomen, and the waist continuous elastic member 52 of the rear exterior body 17 is located at the buttocks. Is located in the area facing the back beyond the bulge or buttocks. This abdominal bulge and buttock bulge overhang, especially in the center of the body in the width direction.
  • the non-fixed region R12 is located in the center of the absorbent article 10 in the width direction W, and is arranged so as to face the center in the width direction of the body when worn.
  • the non-fixed region R12 does not have a fixing means for fixing the continuous elastic member 52 around the waist, and is easily deformed more flexibly than the fixed region R11.
  • the exterior body 15 can be flexibly deformed to reduce the discomfort to the body and reduce the wearing feeling. Can be suppressed.
  • the non-fixed region R12 is located at the center of the rear exterior body 17 in the width direction W, and is susceptible to body pressure in a lying state. At this time, in the non-fixed region R12, the continuous elastic member 52 around the waist is not fixed to the sheet material 18, but rises from the sheet material 18 and contracts, so that the non-fixed region R12 has lower adhesion to the body than the fixed region R11.
  • the absorbent article 10 is in close contact with the center of the back of the wearer. You can suppress overdoing. The user is less likely to feel tight and can suppress a decrease in wearing feeling.
  • the fixed region R11 and the non-fixed region R12 are arranged so as to straddle at least the outer edge of the absorbent main body 40 in the front-rear direction L.
  • the waist-surrounding continuous elastic member 52 of the rear exterior body 17 has a region on the rear side of the rear end edge 40R of the absorbent body 40 and a region on the front side of the rear end edge 40R of the absorbent body 40. It is provided in.
  • the waist circumference continuous elastic member 52 of the front exterior body 16 is provided in a region on the front side of the front end edge 40F of the absorbent body 40 and a region on the rear side of the front end edge 40F of the absorbent body 40. There is.
  • Each of the pair of fixed regions R11 is arranged so as to straddle the outer edge 40E of the absorbent main body 40 in the width direction W. It is sufficient that at least a part of the range of the fixed region R11 in the front-rear direction L straddles the outer edge 40E of the absorbent main body 40 in the width direction W.
  • the waist elastic member 52 is continuous in the width direction W and is not divided. Therefore, the contraction force of the waist elastic continuous elastic member 52 is more likely to be exhibited than in the case where the elastic member is not continuous in the width direction.
  • the waist circumference continuous elastic member 52 since the fixed region R11 to which the waist circumference continuous elastic member 52 is fixed straddles the outer edge 40E of the absorbent body 40, the waist circumference continuous elastic member 52 fits the outer edge 40E of the absorbent body 40 to the body. Therefore, the lateral leakage of body fluid can be suppressed.
  • the fixed region R11 and the non-fixed region R12 may be arranged between the outer edge of the absorbent main body 40 and the outer edge of the absorbent core 45 in the front-rear direction L.
  • the fixed region R11 and the non-fixed region R12 of the present embodiment are a region between the front edge 40F of the absorbent body 40 and the front edge 45F of the absorbing core 45, and the trailing edge 40R and the absorbing core 45 of the absorbing core 45. It may be provided in the region between the trailing edge 45R. According to this configuration, the region outside the absorption core 45 in the front-rear direction L fits the body due to the contraction of the continuous elastic member 52 around the waist, and leakage in the front-rear direction L can be suppressed.
  • the absorption core 45 is not arranged on the inner surface (the surface in contact with the body) of the region outside the L in the front-rear direction with respect to the absorption core 45, and wrinkles due to the contraction of the continuous elastic member 52 around the waist are likely to be formed.
  • the non-fixed region R12 By flexibly deforming the non-fixed region R12, it is possible to alleviate the contact of wrinkles on the skin due to the contraction of the continuous elastic member 52 around the waist and suppress the deterioration of the wearing feeling.
  • the fixed region R11 and the non-fixed region R12 may be arranged at least in the region outside the absorbent body 40 in the front-rear direction L.
  • the region outside the absorbent body 40 in the front-rear direction L fits the body due to the contraction of the continuous elastic member 52 around the waist, and leakage in the front-rear direction L can be suppressed.
  • the inner surface of the exterior body 15 is in direct contact with the skin, and wrinkles due to the contraction of the continuous elastic member 52 around the waist are likely to hit the skin. Since the non-fixed region R12 hits the center in the width direction of the wearer, it is possible to alleviate the contact of wrinkles on the skin due to the contraction of the continuous elastic member 52 around the waist and suppress the deterioration of the wearing feeling.
  • the outer edge of the fixed region R11 and the outer edge of the non-fixed region R12 may be inside the front-rear direction L with respect to the outer edge of the exterior body 15, and may be the front-rear direction L with respect to the outer edge of the absorbent main body 40. May be outside of. Further, the inner end edge of the fixed region R11 and the inner end edge of the non-fixed region R12 may be inside in the front-rear direction than the outer end edge of the absorbent main body 40, and may be in the front-rear direction than the outer end edge of the absorbent core 45. May be outside of.
  • the inner edge of the fixed region R11 (the outer edge of the non-fixed region R12) may be located on the inner side in the width direction W than the outer edge 40E of the absorbent main body, and more preferably, the outer edge of the absorbent core 45. It may be located inside the width direction W with respect to 45E.
  • the pair of fixed regions R11 may be arranged so as to straddle the core extension lines extending in the front-rear direction L from the outer edge 45E of the absorption core 45. Since the waist circumference continuous elastic member 52 is arranged on the extension line extending from the outer edge 45E of the absorption core 45, the waist circumference continuous elastic member 52 pulls the extension line of the absorption core to the outside in the width direction W, and the extension line is pulled.
  • the outer edge 45E of the absorbent core 45 can also be pulled to the outside in the width direction W via this.
  • the outer edge of the fixed region R11 may be at least located on the outer side of the exterior body.
  • the fixed region R11 that straddles the outer edge 40E of the absorbent main body and the fixed region R11 that is located on the outer side portion of the exterior body may be provided at intervals in the width direction W.
  • the fixing region R11 may extend inward in the width direction from the outer portions on both sides of the exterior body 15 and may extend to the outer edge 40E of the absorbent main body 40. Since the fixing regions R11 are continuous from the outer side portions on both sides of the exterior body to the outer edges of the absorbent main body, the outer region in the width direction of the absorbent main body 40 also fits the body, and the outer edges of the absorbent main body 40. Lifting of 40E can be suppressed and lateral leakage can be suppressed.
  • the fixed region R11 and the non-fixed region R12 may be provided on either the front exterior body 16 or the rear exterior body 17, or may be provided on both the front exterior body 16 and the rear exterior body 17.
  • the fixed region R11 may have a front fixed region R111 provided on the front exterior body 16 and a rear fixed region R112 provided on the rear exterior body 17.
  • the non-fixed region R12 may have a front non-fixed region R121 provided on the front exterior body 16 and a rear non-fixed region R122 provided on the rear exterior body 17. Since the fixed region R11 and the non-fixed region R12 are provided in both the front exterior body 16 and the rear exterior body 17, lateral leakage of body fluid is suppressed on both the abdomen side and the back side while suppressing deterioration in wearing comfort. Can be suppressed.
  • the length of the front fixed region R111 in the width direction W may be longer than the length of the rear fixed region R112 in the width direction W.
  • the wearer's excretory opening is located near the front torso circumference area S1. Therefore, body fluid is more likely to be guided to the front waist region S1 than to the rear waist region S2, and front leakage is likely to occur.
  • the length of the front fixing region R111 in the width direction W is relatively long, the adhesion of the outer edge 40E of the absorbent main body 40 in the front waist region S1 can be increased and front leakage can be suppressed.
  • the length of the rear non-fixed region R122 in the width direction W may be longer than the length of the front non-fixed region R121 in the width direction W.
  • the sheet material 18 and the continuous elastic member 52 around the waist are not fixed, and it is difficult to adhere to the body as compared with the fixed region R11. Since the length of the rear non-fixed region R122 in the width direction W is relatively long, it is possible to provide a wide region in which the rear waist region S2 is unlikely to be in close contact with the body, and to secure a feces accommodation space.
  • a discontinuous elastic member 53 may be provided inside the continuous elastic member 52 around the waist in the front-rear direction L.
  • the exterior body 15 is formed between an expansion / contraction region R21 extending inward in the width direction W from the outer portions on both sides of the exterior body and to which a discontinuous elastic member 53 is stretchably fixed, and an expansion / contraction region R21 in the width direction.
  • a non-stretchable region R22 to which the discontinuous elastic member 53 is not stretchably fixed is provided.
  • the non-stretchable region R22 includes not only the region in which the non-continuous elastic member 53 is not arranged but also the region in which the non-continuous elastic member 53 in the non-stretchable state (non-stretched state) is arranged.
  • the stretchable region R21 and the non-stretchable region R22 are formed so as to straddle the plurality of discontinuous elastic members 53.
  • the outer edge of the stretchable region R21 and the outer edge of the non-stretchable region R22 are the discontinuous elastic member 53 located on the frontmost side in the front exterior body 16 and the waist circumference located on the rearmost side in the rear exterior body 17.
  • the continuous elastic member 52 is the continuous elastic member 52.
  • the inner edge of the stretchable region R21 and the inner edge of the non-stretchable region R22 are a discontinuous elastic member 53 located on the rearmost side in the front exterior body 16 and a discontinuous elastic member located on the frontmost side in the rear exterior body 17. 53 and match.
  • the stretchable region R21 and the non-stretchable region R22 in the front exterior body extend in the front-rear direction across the waist-circumferential discontinuous elastic member 53 located on the frontmost side and the discontinuous elastic member 53 located on the rearmost side.
  • the stretchable region R21 and the non-stretchable region R22 in the rear exterior body extend in the front-rear direction across the discontinuous elastic member 53 located at the frontmost side and the discontinuous elastic member 53 located at the rearmost side. ..
  • the non-stretchable region R22 may be arranged so as to overlap the absorbent main body 40 inside the non-fixed region R12 in the front-rear direction L.
  • the non-stretchable region R22 only needs to overlap at least a part of the absorbent main body, and more preferably, may overlap the center of the absorbent main body 40 in the width direction W.
  • the absorption performance of body fluid can be enhanced, and by suppressing the occurrence of wrinkles on the surface of the absorption core 45, it is possible to suppress the leakage in the front-rear direction L. ..
  • the stretchable region R21 and the non-stretchable region R22 may be arranged inside the fixed region R11 and the non-fixed region R12 in the front-rear direction L.
  • the outer edge of the stretchable region R21 and the outer edge of the non-stretchable region R22 may be on the inner side in the front-rear direction than the outer edge of the absorbent body 40, and on the outer side in the front-rear direction than the outer edge of the absorbent core. It may be there.
  • the inner edge of the stretchable region R21 and the inner edge of the non-stretchable region R22 may be inside the outer edge of the absorption core 45 in the front-rear direction.
  • the inner edge of the stretchable region R21 (the outer edge of the non-stretchable region R22) may be located on the inner side in the width direction than the outer edge 40E of the absorbent main body, and more preferably than the outer edge of the absorbent core. It may be located on the inner side in the width direction. Further, the outer edge of the expansion / contraction region R21 may be located on the outer side of the exterior body.
  • the inner edge of the stretchable region R21 (the outer edge of the non-stretchable region R22) and the inner edge of the fixed region R11 (the outer edge of the non-fixed region R12) may have the same positions in the width direction.
  • the non-stretchable region R22 may be arranged to overlap the absorbent main body 40 on the inner side in the front-rear direction than the non-fixed region R12.
  • the elastic members constituting the discontinuous elastic member 53 are continuously arranged in the width direction.
  • the elastic member is arranged so as to straddle the stretchable region R21 and the non-stretchable region R22.
  • an adhesive for fixing the elastic member is applied to the elastic member of the elastic region R21 or a region of the sheet material corresponding to the elastic region R21.
  • the elastic members constituting the discontinuous elastic member 53 when the elastic members constituting the discontinuous elastic member 53 are continuously arranged in the width direction, it corresponds to the entire area of the elastic member or the elastic region R21 and the non-expandable region R22 in the sheet material.
  • An adhesive is applied to the area to secure the elastic member. Then, the elastic member arranged across the stretchable region R21 and the non-stretchable region R22 is cut at a plurality of locations in the non-stretchable region R22.
  • the elastic members 50 are arranged at intervals in the front-rear direction L in the front-exterior body 16, and the front-side elastic members straddle the outer edge 40E of the absorbent main body 40 in the width direction W, and the rear-exterior body 17 in the front-rear direction. It may have a rear elastic member which is arranged at intervals in L and straddles the outer edge 40E of the absorbent body 40 in the width direction W.
  • the front elastic member is, of the elastic members arranged in the front exterior body 16, an elastic member that is arranged in a stretchable state so as to straddle the outer edge 40E of the absorbent main body.
  • the front elastic member of the present embodiment is composed of nine discontinuous elastic members 53, two waist continuous elastic members 52, and two waist continuous elastic members 51.
  • the rear elastic member is an elastic member arranged on the rear exterior body 17 so as to straddle the outer edge 40E of the absorbent body in a stretchable state.
  • the rear elastic member of the present embodiment is composed of eight discontinuous elastic members 53 and two waist continuous elastic members 52.
  • the number of front elastic members may be larger than the number of rear elastic members. Since the number of front elastic members is larger than the number of rear elastic members, the force that pulls the absorbent body outward in the width direction in the front exterior body 16 causes the absorbent body to be outward in the width direction in the rear exterior body 17. It tends to be stronger than the pulling force.
  • the outer portion of the rear torso circumference region S2 is connected to the outer portion of the front torso circumference region S1 via the side joint 60, and is pulled outward in the width direction W via the outer portion of the front torso circumference region S1. Be done.
  • the absorbent main body 40 in the rear waist circumference region S2 is pulled to the outside in the width direction W, the unevenness of the surface becomes small, and it is easy to hit the body on the surface. Since the absorbent body 40 hits the body on the surface in the rear torso circumference area S2, leakage through the gap between the buttocks can be suppressed.
  • FIG. 5 is an enlarged plan view of the exterior body 15.
  • the non-fixed region R12 may be provided with a joint portion 75 in which a pair of sheet materials 18 are joined.
  • the joining portion 75 may be configured to join the first sheet 18A and the second sheet 18B, and specifically, the welding portion where the sheet material 18 is welded by heat or ultrasonic waves, and the sheet material 18 have a thickness. Examples include an embossed portion compressed in the direction and an adhesive portion in which the sheet material 18 is joined with an adhesive.
  • the unevenness of the sheet material 18 can be controlled by the joint portion 75. By forming wrinkles finely or forming wrinkles into an intended shape, it is possible to suppress the discomfort to the skin due to wrinkles.
  • the shape of the joint portion 75 in a plan view is not limited.
  • the joining portion may have a dot shape or a linear shape extending in the front-rear direction or the width direction.
  • a plurality of joints 75 may be provided at intervals in a plan view. That is, the joint portions 75 may be arranged at intervals in at least one of the front-rear direction L and the width direction.
  • a joint portion is provided between waist-continuous elastic members 52 adjacent in the front-rear direction. 75 may be provided.
  • the waist circumference continuous elastic members 52 adjacent to each other in the front-rear direction can be separated by a joint. Therefore, the waist-surrounding continuous elastic members 52 can be arranged at regular intervals in the front-rear direction, and wrinkles due to contraction of the waist-periphery continuous elastic members 52 can be easily made uniform. In addition, by arranging the continuous elastic members around the waist 52 at regular intervals in the front-rear direction, the continuous elastic members 52 around the waist that are adjacent to each other in the front-rear direction overlap with each other, so that they are locally in close contact with the body. Can be suppressed.

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

L'invention concerne un article absorbant (10) qui comprend une région d'entrejambe (S1), une paire de régions de taille (S2, S3) situées sur les deux côtés de la région d'entrejambe dans la direction avant-arrière, un corps absorbant (40) ayant un noyau absorbant (45), et un corps extérieur (15) disposé sur le côté non tourné vers la peau du corps absorbant dans au moins une des régions de la paire de régions de taille. Le corps extérieur comprend une paire de matériaux en feuille (18) et un élément élastique (50) disposé entre la paire de matériaux en feuille et s'étendant dans le sens de la largeur. L'élément élastique comprend un élément élastique continu (52) qui est élastique de façon continue à partir d'une partie latérale externe du corps extérieur jusqu'à l'autre partie latérale externe du corps extérieur dans le sens de la largeur. Le corps extérieur est pourvu : d'une région de non-fixation (R12), l'élément élastique continu n'étant pas fixé à la paire de matériaux en feuille au centre de l'article absorbant dans le sens de la largeur; et d'une paire de régions de fixation (R11), l'élément élastique continu étant fixé de manière extensible/rétractable à au moins un des matériaux de la paire de matériaux en feuille sur les côtés extérieurs de la région de non-fixation dans le sens de la largeur. La paire de régions de fixation est disposée sur toute l'étendue du bord externe du corps absorbant dans le sens de la largeur.
PCT/JP2020/008277 2019-03-01 2020-02-28 Article absorbant WO2020179658A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-038052 2019-03-01
JP2019038052A JP7109393B2 (ja) 2019-03-01 2019-03-01 吸収性物品

Publications (1)

Publication Number Publication Date
WO2020179658A1 true WO2020179658A1 (fr) 2020-09-10

Family

ID=72279468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/008277 WO2020179658A1 (fr) 2019-03-01 2020-02-28 Article absorbant

Country Status (2)

Country Link
JP (1) JP7109393B2 (fr)
WO (1) WO2020179658A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022094089A (ja) * 2020-12-14 2022-06-24 ユニ・チャーム株式会社 吸収性物品
CN117897126A (zh) * 2021-08-31 2024-04-16 尤妮佳股份有限公司 伸缩性片、内裤型吸收性物品以及伸缩性片的制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002045399A (ja) * 2000-08-01 2002-02-12 Toyo Eizai Corp パンツ型使い捨ておむつ
JP2009106667A (ja) * 2007-10-31 2009-05-21 Daio Paper Corp パンツ型使い捨ておむつ、及び使い捨て吸収性物品における伸縮部構造
WO2011001944A1 (fr) * 2009-07-01 2011-01-06 花王株式会社 Article absorbant de type culotte et procédé de production de celui-ci
JP2014198179A (ja) * 2013-03-29 2014-10-23 大王製紙株式会社 吸収性物品の伸縮構造
WO2016203602A1 (fr) * 2015-06-18 2016-12-22 ユニ・チャーム株式会社 Article à porter jetable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002045399A (ja) * 2000-08-01 2002-02-12 Toyo Eizai Corp パンツ型使い捨ておむつ
JP2009106667A (ja) * 2007-10-31 2009-05-21 Daio Paper Corp パンツ型使い捨ておむつ、及び使い捨て吸収性物品における伸縮部構造
WO2011001944A1 (fr) * 2009-07-01 2011-01-06 花王株式会社 Article absorbant de type culotte et procédé de production de celui-ci
JP2014198179A (ja) * 2013-03-29 2014-10-23 大王製紙株式会社 吸収性物品の伸縮構造
WO2016203602A1 (fr) * 2015-06-18 2016-12-22 ユニ・チャーム株式会社 Article à porter jetable

Also Published As

Publication number Publication date
JP2020137970A (ja) 2020-09-03
JP7109393B2 (ja) 2022-07-29

Similar Documents

Publication Publication Date Title
JP3515932B2 (ja) 使い捨ての着用物品
JP5383018B2 (ja) 使い捨ておむつ
KR101389183B1 (ko) 팬츠 형상의 착용 물품 및 그 제조 방법
WO2020179658A1 (fr) Article absorbant
CN113556999B (zh) 吸收性物品
JP4198312B2 (ja) 紙おむつ
JP2005278774A (ja) パンツ型使い捨て紙おむつ及びその製造方法
WO2016208255A1 (fr) Article absorbant
CN210330913U (zh) 短裤型吸收性物品
JP2010142499A (ja) 使い捨てパンツ型おむつおよびその製造方法
WO2020116595A1 (fr) Couche jetable
JP2009261981A (ja) 紙おむつ
JP2002336302A (ja) 使い捨てのパンツ型おむつ
WO2015108091A1 (fr) Sous-vêtement jetable
JP3744925B2 (ja) 使い捨ての尿とりパッド
JP2003102778A (ja) パンツ型使い捨ておむつ
JP6026053B1 (ja) 吸収性物品
JP5183488B2 (ja) 吸収性物品
JP7217203B2 (ja) 吸収性物品
JP7179458B2 (ja) 吸収性物品
JP7179457B2 (ja) 吸収性物品
JP7366881B2 (ja) パンツ型使い捨ておむつ
CN111479540B (zh) 吸收性物品
JP7149070B2 (ja) 吸収性物品
CN210433616U (zh) 带式吸收性物品

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20766734

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20766734

Country of ref document: EP

Kind code of ref document: A1