WO2020189279A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2020189279A1
WO2020189279A1 PCT/JP2020/009120 JP2020009120W WO2020189279A1 WO 2020189279 A1 WO2020189279 A1 WO 2020189279A1 JP 2020009120 W JP2020009120 W JP 2020009120W WO 2020189279 A1 WO2020189279 A1 WO 2020189279A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent article
pair
width direction
fixed
waist circumference
Prior art date
Application number
PCT/JP2020/009120
Other languages
English (en)
Japanese (ja)
Inventor
秀晃 槇
和樹 長田
洋大 椎野
敬司 藤井
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=72520189&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2020189279(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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 CN202080019865.6A priority Critical patent/CN113556999B/zh
Priority to BR112021018584-4A priority patent/BR112021018584B1/pt
Priority to RU2021127395A priority patent/RU2765364C1/ru
Priority to CN202410193748.1A priority patent/CN117982294A/zh
Publication of WO2020189279A1 publication Critical patent/WO2020189279A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—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
    • 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
    • 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • 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
    • A61F13/493—Absorbent articles specially adapted to be worn around the waist, e.g. diapers adjustable by adding or removing material, e.g. umbilical cord arrangements
    • 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
    • A61F13/551—Packaging before or after use

Definitions

  • the present invention relates to an absorbent article.
  • an elastic structure around the waist of the absorbent article there is one provided with an elongated elastic elastic member provided along the elastic direction between the two sheet layers.
  • both ends of the elastic elastic member are fixed to two sheet layers, and the elastic elastic member is a free portion that is not fixed to the two sheet layers between the fixed ends.
  • an elastic structure having a sheet joint in which two sheet layers are joined via a hot melt adhesive in the region between the fixed ends. It is said that the sheet joints that are continuous in the expansion and contraction direction form a wavy shape (fold) along which the two sheet layers follow each other, and the top of the fold bends gently, resulting in a flexible feel.
  • the elastic elastic member since the elastic elastic member is not fixed to the two sheet layers between the fixed ends at both ends of the elastic elastic member in the waist circumference, the elastic article is worn around the waist.
  • the relative position of the elastic elastic member with respect to the part may shift (for example, the position shift in the vertical direction), the fit may deteriorate, or the sheet constituting the waist circumference may be "blurred". There is a risk.
  • the entire elastic elastic member when the entire elastic elastic member is fixed around the waist, it is possible to suppress the displacement of the elastic elastic member. However, if the area of the portion where the two sheet layers are fixed by the elastic elastic member becomes large, the flexibility of the waist circumference may be impaired.
  • the present invention has been made in view of the above problems, and an object of the present invention is to improve the flexibility of the waist circumference of an absorbent article and to cause burr in the waist circumference. Is to suppress.
  • the main invention for achieving the above object is an absorption having a width direction, a longitudinal direction, and a thickness direction, a pair of waist circumferences, and an absorbent body having an absorbent core in a deployed state.
  • at least one of the pair of waist circumferences has a pair of sheets and a plurality of elastic members arranged between the pair of sheets that expand and contract in the width direction, and each of the above-mentioned articles.
  • the elastic member is continuously arranged from one end to the other end of the waist circumference portion in the width direction, and both ends in the width direction are fixed to the pair of sheets.
  • the plurality of telescopic members having a fixed portion and having a non-fixed portion not fixed to the pair of seats inside the end fixed portion in the width direction and the stretchable member in the width direction. At least one region overlapping the non-fixed portion has at least one second telescopic member having a fixed portion fixed to the pair of seats, and the length of the non-fixed portion in the width direction.
  • the present invention it is possible to improve the flexibility of the waist circumference of the absorbent article and suppress the occurrence of blistering in the waist circumference.
  • FIG. 2 is a schematic cross-sectional view taken along the line II of FIG. It is a schematic plan view of the ventral waist circumference portion 20 of the first embodiment. It is a schematic plan view of the ventral trunk circumference 20 in the modified example. It is a schematic plan view of the ventral waist circumference portion 20 of the second embodiment. It is a schematic plan view of the ventral waist circumference portion 20 of the third embodiment.
  • the absorbent article In the unfolded state, the absorbent article has a width direction, a longitudinal direction, and a thickness direction, and has a pair of waist circumferences and an absorbent body having an absorbent core, and the pair of waist circumferences. At least one of the portions has a pair of sheets and a plurality of elastic members arranged between the pair of sheets that expand and contract in the width direction, and each of the elastic members is the one of the waist circumference portions.
  • the plurality of telescopic members are continuously arranged from one end to the other end in the width direction, and have a pair of end fixing portions in which both ends in the width direction are fixed to the pair of sheets.
  • An absorbent article comprising at least one second telescopic member having a fixing portion fixed to the pair of sheets.
  • the first elastic member since the first elastic member has a non-fixed portion, the area of the highly rigid portion of the waist circumference portion can be reduced, and the flexibility can be improved. Further, since the movement of the non-fixed portion of the non-first telescopic member in the vertical direction is restricted by the fixed portion, the elastic member is unlikely to be displaced, the waist circumference is bulged, and the fit is deteriorated. It can be suppressed.
  • the wearer can use the absorbent article in the area overlapping the absorbent body in the waistline, especially in the area corresponding to the central part of the wearer's body. It is possible to make it difficult to feel the hardness of.
  • the first telescopic member of the absorbent article has the non-fixing portion as a whole between the pair of end fixing portions in the width direction.
  • the length of the non-fixed portion in the width direction is longer than that in the case where the non-fixed portion is provided only in a part of the area between the end fixed portions on both sides in the width direction. It becomes longer, and the area of the low-rigidity portion of the waist circumference can be increased. As a result, the flexibility of the waist circumference can be further improved.
  • the first telescopic member has a central fixing portion in which the first telescopic member is fixed to the pair of sheets at the central portion in the width direction, and the central portion in the width direction. It is desirable to have the non-fixed portions on both outer sides of the fixed portion.
  • the first telescopic member is fixed by the central fixing portion in the central portion in the width direction, it is easy to prevent the first telescopic member from moving in the vertical direction, and it is easy to prevent the first telescopic member from moving in the vertical direction.
  • the amount of movement (amplitude) in Therefore the displacement of the elastic member in the vertical direction is suppressed, and it is possible to more easily suppress the bending of the waist circumference and the deterioration of the fit.
  • the second telescopic member of the absorbent article has the fixing portion as a whole between the pair of end fixing portions in the width direction.
  • the first stretchable member can move because the fixing portion of the second stretchable member is widely provided in the width direction. It becomes easy to be restricted, and it is suppressed that a large displacement occurs. Therefore, it is possible to make it easier to suppress the occurrence of swelling around the waist and the deterioration of the fit when worn.
  • the number of the first expansion / contraction members provided in at least one of the pair of waist circumferences is the number of the second elastic members provided in the one of the pair of waist circumferences. It is desirable that there are more than the number of elastic members.
  • the number of non-fixed portions provided around the waistline is larger than the number of fixed portions. That is, the proportion of the region having high rigidity in the waist circumference portion becomes small, and the flexibility of the waist circumference portion can be further increased.
  • the number of the second elastic members provided in at least one of the pair of waist circumferences is the number of the first elastic members provided in the one of the pair of waist circumferences. It is desirable that the number is equal to or greater than the number of elastic members.
  • the proportion of the portion in which the second elastic member is fixed is large in the waist circumference portion. Therefore, the position shift of the second telescopic member is less likely to occur. Then, as the number of fixed portions of the second telescopic member increases, the movement of the first telescopic member in the vertical direction is more likely to be restricted. That is, the displacement of the telescopic member can be suppressed as a whole. As a result, it is possible to further suppress the occurrence of swelling around the waist and deterioration of fit.
  • At least one first stretchable member is arranged between two second stretchable members arranged adjacent to each other in the longitudinal direction of such an absorbent article.
  • the non-fixed portion of the first telescopic member is arranged so as to be sandwiched in the vertical direction by the fixed portion of the second telescopic member, the non-fixed portion is arranged in the vertical direction.
  • the movement is easily restricted by the fixed portion, and the misalignment of the first telescopic member can be reduced. As a result, it is possible to further suppress the occurrence of swelling around the waist and deterioration of fit.
  • first stretchable member and the second stretchable member are alternately arranged side by side in the longitudinal direction of the absorbent article.
  • the movement of the non-fixed portion of the first telescopic member in the vertical direction is restricted by the fixed portion of the second telescopic member, so that the misalignment of the first telescopic member can be reduced. Can be done. As a result, it is possible to further suppress the occurrence of swelling around the waist and deterioration of fit. Further, since the fixed portion and the non-fixed portion are alternately arranged in the vertical direction, when the waist circumference portion contracts in the width direction, wrinkles having a clean shape are likely to be formed on the surface of the waist circumference portion.
  • the absorbent article has a portion where the absorbent body and the fixing portion overlap when viewed in the thickness direction.
  • the elastic force of the second elastic member fixed to the skin-side sheet makes it easy to suppress the displacement of the absorbent core indirectly fixed to the skin-side sheet. Therefore, the fit of the absorbent core is increased, the excrement is less likely to leak, and the comfort of the absorbent article is improved.
  • the fixing portion of the upper end of the absorbent body and the absorbent core in the longitudinal direction of the region overlapping the absorbent body when viewed in the thickness direction is desirable that it is provided in the area between the upper end.
  • the elastic force of the second elastic member is unlikely to act directly on the region overlapping the absorbent core, so that when the absorbent article is worn, the absorbent core is contracted or the wearer's skin. It is difficult for the force to push it to the side to act, and the absorption capacity of the absorbent core is easily maintained.
  • the upper end region (inner flap) of the absorbent body 10 fits the wearer's body, and a gap is less likely to be formed between the absorbent body and the wearer's body. It becomes easier to prevent the leakage of excrement such as urine. This makes it easier to suppress the leakage of excrement while further improving the fit of the absorbent core.
  • a post-treatment tape is provided on the non-skin side of the waist circumference of the absorbent article to keep the absorbent article in a rolled state when the used absorbent article is discarded.
  • the post-treatment tape has a tape fixing portion for fixing the post-treatment tape to the non-skin side of the waist circumference portion, and when viewed in the thickness direction, the tape fixing portion and the fixing portion. It is desirable to have a portion that overlaps with.
  • the post-treatment tape is non-skinned in the thickness direction after the use of the absorbent article.
  • the pulling force is easily transmitted to both the skin-side sheet and the non-skin-side sheet constituting the waist circumference portion. Therefore, it is possible to prevent only the non-skin side sheet from being pulled and torn, or the pulling force from being difficult to be transmitted to the waist circumference. This makes it easier to post-treat the absorbent article after use.
  • the absorbent article has a sheet joint portion for joining the opposing surfaces of the pair of sheets, and the sheet joint portion and the elastic member do not have an overlapping portion.
  • the elastic member around the waistline contracts, wrinkles are likely to be formed around the waistline, and the appearance and fit of the waistline can be improved.
  • the seat joint portion does not overlap with the waist circumference elastic member, the area of the portion where the waist circumference expansion / contraction member is fixed to the seat does not increase, and the waist circumference expansion / contraction member maintains the flexibility of the waist circumference. It is possible to regulate the vertical movement of. Therefore, it is easy to maintain the vertical distance between the elastic members around the waist, and it is possible to easily suppress the occurrence of sagging or deterioration of the fit around the waist.
  • the absorbent article according to the present invention is not limited to the above, and can be applied to pants-type disposable diapers for adults, tape-type disposable diapers, sanitary shorts, and the like.
  • FIG. 1 is a schematic perspective view of the pants-type disposable diaper 1 (hereinafter referred to as “diaper 1”) of the first embodiment.
  • FIG. 2 is a schematic plan view of the diaper 1 in the unfolded state and the extended state.
  • FIG. 3 is a schematic cross-sectional view taken along the line II of FIG.
  • the "deployed state" in the diaper 1 is a state in which the locking portions 40 described later are disjointed, the pair of waist circumference portions 20 and 30 (described later) are separated, and the diaper 1 is opened in the longitudinal direction.
  • the "extended state" of the diaper 1 is a state in which the diaper 1 is extended without wrinkles, and the dimensions of each member (for example, waist circumferences 20, 30, etc.) constituting the diaper 1 are the dimensions of the individual member. It is in a stretched state until it reaches the same length or a length close to it.
  • the diaper 1 has a width direction, a vertical direction, and a front-rear direction in the pants-shaped state shown in FIG. 1, and a waist circumference opening BH and a pair of leg circumference openings LH are formed.
  • the waist circumference side is the upper side and the inseam side is the lower side.
  • the ventral side of the wearer is the front side and the dorsal side of the wearer is the posterior side.
  • the direction in which the materials constituting the diaper 1 are laminated is referred to as the thickness direction
  • the side in the thickness direction that contacts the wearer is the skin side
  • the side that does not contact the wearer is non.
  • the diaper 1 has a longitudinal direction and a width direction intersecting each other.
  • the longitudinal direction is a direction along the vertical direction
  • the width direction is the same direction as the width direction in the pants-shaped state of FIG.
  • the diaper 1 has a pair of waist circumferences 20 and 30 and an absorbent main body 10.
  • the pair of waist circumferences 20 and 30 the one that is applied to the ventral side of the wearer is referred to as the ventral waist circumference 20, and the one that is applied to the back side of the wearer is referred to as the dorsal waist circumference 30.
  • the diaper 1 has a width direction and a longitudinal direction in the unfolded state shown in FIG. 2, and is located on one side (belly) of the absorbent body 10 in the longitudinal direction at the center of the ventral waist circumference portion 20 in the width direction.
  • the end on the side) is arranged, and the end on the other side (dorsal side) of the absorbent body 10 in the longitudinal direction is arranged at the center of the dorsal waist circumference 30 in the width direction.
  • the absorbent body 10 is folded in half at substantially the center in the longitudinal direction thereof, and the ventral waist circumference 20 and the dorsal waist circumference 30 are each locked on both sides in the width direction.
  • the longitudinal direction of the unfolded diaper 1 is along the vertical direction of the pants-shaped diaper 1. Further, as a locking method in the locking portion 40, welding, bonding with an adhesive, or the like can be exemplified.
  • the absorbent body 10 is arranged on the absorber 11, the liquid-permeable top sheet 12 arranged on the skin side of the absorber 11, and on the non-skin side of the absorber 11. It has a liquid-impermeable back sheet 13 and an exterior sheet 14 arranged on the non-skin side of the back sheet 13.
  • the absorber 11 has an absorbent core 11A that absorbs and retains excrement such as urine, and a liquid-permeable core wrap sheet 11B that covers the absorbent core 11A.
  • a liquid absorbent fiber such as pulp containing a highly absorbent polymer (SAP) formed into a predetermined shape can be exemplified.
  • SAP highly absorbent polymer
  • the absorbent core 11A may not be covered with the core wrap sheet 11B.
  • the ventral waist circumference 20 and the dorsal waist circumference 30 are composed of flexible skin-side sheets 21 and 31 such as non-woven fabrics and non-skin-side sheets 22 and 32 (a pair of sheets), respectively. It has a plurality of elastic members 23, 33 around the waist, which are arranged between the skin side sheets 21 and 31 and the non-skin side sheets 22 and 32 and expand and contract in the width direction.
  • the plurality of elastic members 23 and 33 around the waist are arranged side by side at intervals in the vertical direction (longitudinal direction) between the skin side sheets 21 and 31 and the non-skin side sheets 22 and 32, and are arranged in the width direction. It is fixed in the extended state.
  • the ventral waist circumference 20 and the dorsal waist circumference 30 expand and contract in the width direction to fit the wearer's waist circumference.
  • the waist circumference elastic members 23 and 33 include a thread-like elastic member such as rubber thread and an elongated elastic sheet.
  • the configurations of the waist circumference portions 20 and 30 are not limited to those shown in the drawings, and may be, for example, a configuration of three or more layers in which different sheets are laminated on a pair of sheets, or one sheet is bent. It may be configured as a pair of sheets.
  • the ventral waist circumference 20 and the dorsal waist circumference 30 are separated, and the ventral waist circumference 20, the dorsal waist circumference 30, and the absorbent body 10 3
  • the so-called three-piece type having a member has been exemplified, but the present invention is not limited to this.
  • the ventral waist circumference 20 and the dorsal waist circumference 30 are formed of a continuous member via the lower crotch, and the ventral waist circumference 20 and the dorsal waist circumference 30 are integrated. It may be a so-called two-piece type pants-type disposable diaper having two members, a member and an absorbent main body.
  • FIG. 4 is a schematic plan view of the ventral waist circumference portion 20 of the first embodiment.
  • the configuration of the pair of waist circumference portions 20 and 30 will be described by taking the ventral waist circumference portion 20 as an example.
  • at least one of the pair of waist circumferences 20 and 30 may have the following configuration. That is, both waist circumferences 20 and 30 may have the following configuration, or the ventral waist circumference 20 may have the following configuration and the dorsal waist circumference 30 may have the following configuration.
  • the side waist circumference portion 20 may have the following configuration, and the dorsal waist circumference portion 30 may differ from the following configuration. The same applies to other embodiments.
  • the plurality of waist circumference elastic members 23 included in the ventral waist circumference portion 20 are continuously arranged from one end to the other end in the width direction of the waist circumference 20. It has a “continuous telescopic member 231 (expandable member of the present invention)" and a plurality of “discontinuous telescopic members 232" arranged discontinuously in the width direction.
  • the discontinuous telescopic member 232 is arranged below the continuous telescopic member 231.
  • Each continuous telescopic member 231 has a "pair of end fixing portions 50" whose both ends in the width direction are fixed to the skin side sheet 21 and the non-skin side sheet 22.
  • the fixing method in the end fixing portion 50 is not particularly limited, and for example, fixing with an adhesive applied to the continuous expansion / contraction member 231 or a skin side sheet 21 and a non-skin side sheet 22 (hereinafter, "a pair of sheets 21"). , 22 ”) can be exemplified by well-known methods such as fixing with an adhesive applied to the inner surface and fixing with a pair of welded portions crossing the continuous expansion / contraction member 231.
  • the pair of end fixing portions 50 are arranged inside the pair of locking portions 40 in the width direction separately from the pair of locking portions 40.
  • the pair of locking portions 40 may be used as a pair of end fixing portions. That is, the diaper 1 does not have to have the end fixing portion 50 shown in FIG.
  • the plurality of continuous expansion / contraction members 231 have at least one "first continuous expansion / contraction member 231a" and "second continuous expansion / contraction member 231b".
  • the first continuous telescopic member 231a (first telescopic member of the present invention) has a "non-fixing portion 51" that is not fixed to a pair of sheets 21 and 22 inside the end fixing portion 50 in the width direction.
  • the second continuous expansion / contraction member 231b (the second expansion / contraction member of the present invention)
  • at least the region overlapping the non-fixed portion 51 in the width direction is fixed to the pair of sheets 21 and 22 as the "fixed portion 52".
  • the fixing portion 52 may be formed integrally with the end fixing portions 50 and 50, or may be formed separately from the end fixing portions 50.
  • the non-fixing portion 51 is continuously arranged from the end fixing portion 50 on one side in the width direction to the end fixing portion 50 on the other side (see FIG. 4). Then, the fixing portions 52 are continuously arranged from the one-sided end fixing portion 50 in the width direction to the other-side end fixing portion 50 so as to correspond to the position where the non-fixing portion 51 is provided. (See FIG. 4).
  • the non-fixed portion 51 of the first continuous expansion / contraction member 231a may be arranged only in a part of the region between the end fixing portions 50, 50.
  • the fixing portion 52 of the second continuous expansion / contraction member 231b may be provided at least in the portion where the non-fixing portion 51 is provided in the width direction.
  • the portion where the waist circumference elastic member 23 is fixed to the pair of sheets 21 and 22 (fixed portion 52) is more cured than the non-fixed portion (non-fixed portion 51) due to hardening of the adhesive or the like.
  • the rigidity of the waist circumference portion 20 is increased. Therefore, since the first continuous expansion / contraction member 231a has the non-fixed portion 51, for example, when the non-fixed portion 51 is not provided (the waist circumference expansion / contraction member 23 is fixed to the pair of seats 21 and 22 over almost the entire area.
  • the area of the highly rigid part can be reduced as compared with the case where the rigidity is high. Therefore, the flexibility of the waist circumference portion 20 can be improved, and the comfort of wearing the waist circumference portion 20 can be improved.
  • the length L51 of the non-fixed portion 51 (the total length in the width direction of the non-fixed portion 51 provided for a certain first continuous expansion / contraction member 231a) is absorbent.
  • the length (width) of the main body 10 is longer than W10.
  • the absorbent main body 10 has the absorbent core 11A formed of the liquid absorbent fiber, the rigidity is higher than that of the waist circumference portion 20 and the like. Therefore, in the region where the waist circumference 20 and the absorbent body 10 overlap in the width direction, the waist circumference 20 becomes harder than in the region where the absorbent main body 10 does not overlap, and when the diaper 1 is worn. There is a risk of causing discomfort or discomfort to the wearer.
  • the absorbent main body 10 is provided in the portion. It is possible to make it difficult for the wearer (user) to feel the hardness of the diaper. Especially in the area corresponding to the central part of the wearer's body, the flexibility can be easily felt. Therefore, it is possible to make it difficult for the wearer to feel uncomfortable or uncomfortable with the waist circumference portion 20.
  • the first continuous stretchable member 231a since the first continuous stretchable member 231a is not fixed to the pair of seats 21 and 22, the first continuous stretchable member 231a (non-fixed portion 51) moves up and down when the diaper 1 is worn. It may move in the direction. That is, there is a possibility that the first continuous expansion / contraction member 231a may be displaced with respect to the waist circumference portion 20 in the vertical direction. Then, when the diaper 1 is worn, if the first continuous telescopic member 231a is displaced in the vertical direction in the waist circumference portion 20, the sheets 21 and 22 constituting the waist circumference portion 20 may be bent. There is a risk that the tightening around the waist of the wearer will be uneven and the fit of the waist 20 will deteriorate.
  • the fixed portion 52 is provided in the region overlapping the region where the non-fixed portion 51 is provided in the width direction, the first continuous expansion / contraction member 231a (non-fixed portion) The vertical movement of 51) is restricted by the second continuous expansion / contraction member 231b (fixing portion 52).
  • the waist circumference 20 is bulged by providing the fixed portion 52 at a predetermined position. Can be suppressed.
  • the non-fixing portion 51 is continuously arranged from the end fixing portion 50 on one side in the width direction to the end fixing portion 50 on the other side. That is, the non-fixed portion 51 is provided as a whole between the pair of end fixed portions 50, 50. Therefore, the length L51 of the non-fixed portion 51 in the width direction is longer than that in the case where the non-fixed portion 51 is provided only in a part of the area between the end fixed portions 50, 50 on both sides in the width direction. It becomes longer, and the area of the portion of the waist circumference 20 having low rigidity can be increased. Thereby, the flexibility of the waist circumference portion 20 can be further improved.
  • the fixed portion 52 is continuously arranged from the end fixing portion 50 on one side in the width direction to the end fixing portion 50 on the other side corresponding to the non-fixing portion 51. That is, the fixing portion 52 is provided as a whole between the pair of end fixing portions 50, 50.
  • the range in which the first continuous expansion / contraction member 231a is not fixed to the pair of sheets 21 and 22 becomes wider. That is, the first continuous expansion / contraction member 231a (non-fixed portion 51) can move in the vertical direction over a wide range in the width direction, and the positional deviation of the first continuous expansion / contraction member 231a may become large.
  • the second continuous expansion / contraction member 231b is fixed by the fixing portion 52 in a wide range in the width direction. Therefore, even if the non-fixed portion 51 of the first continuous telescopic member 231a tries to move in the vertical direction, the movement is restricted by the fixed portion 52 of the second continuous telescopic member 231b, and it is easy to prevent a large displacement from occurring. As a result, even when the range of the non-fixed portion 51 is widened to improve the flexibility of the waist circumference portion 20, the waist circumference portion 20 may be sagging or the fit when worn may be deteriorated. You can firmly suppress what you do.
  • the fixing portion 52 does not necessarily have to be provided in the entire area between the end fixing portions 50, 50 on both sides in the width direction, but at least in the entire area of the region R1 overlapping with the absorbent core 11A in the width direction. It is desirable that they are continuously provided over the same direction (see FIG. 4). Since the second continuous expansion / contraction member 231b is fixed to the pair of sheets 21 and 22 in the region R1, the expansion / contraction force of the second continuous expansion / contraction member 231b easily acts on the entire region R1, and at least in the region R1. The waist circumference 20 can easily fit the wearer's skin. Therefore, in the region R1, the position of the absorbent core 11A is less likely to shift in the width direction, and it becomes easier to prevent excrement from leaking from the absorbent core 11A.
  • At least one of the one or more fixing portions 52 provided continuously over the entire area of the region R1 in the width direction is arranged so as to overlap with the absorbent body 10 in the longitudinal direction. desirable.
  • the absorbent body 10 and the fixing portion 52 of the second continuous expansion / contraction member 231b have an overlapping portion. If the second continuous elastic member 231b is fixed to the skin side sheet 21 in the region R1, the skin side sheet 21 is easily fixed to the wearer's body (skin) by the elastic force of the second continuous elastic member 231b. .. Then, the vertical displacement of the absorbent core 11A indirectly fixed to the skin side sheet 21 can be easily suppressed.
  • the displacement of the absorbent core 11A in the vertical direction (longitudinal direction) and the width direction is suppressed, the fit of the absorbent core 11A to the wearer is increased, excrement is less likely to leak, and the diaper 1 is worn. The comfort is improved.
  • At least one fixing portion 52 is provided.
  • at least one fixing portion 52 of the second continuous expansion / contraction member 231b is provided at a position that overlaps with the absorbent body 10 and does not overlap with the absorbent core 11A. Has been done. In this case, the stretching force of the second continuous stretching member 231b does not act on the region overlapping the absorbent core 11A.
  • the fixing portion 52 makes it easier for the inner flap of the absorbent body 10 to fit the wearer's body, it becomes difficult for a gap to be formed between the absorbent body 10 and the wearer's body in the inner flap. .. Therefore, it becomes easy to prevent excrement such as urine from leaking to the outside of the diaper 1 from the upper end portion of the absorbent body 10. As a result, it is possible to improve the fit of the absorbent core 11A and to easily suppress the leakage of excrement.
  • the number of the first continuous elastic members 231a (the number of rubber threads) is the number of the second continuous elastic members 231b (threads). It is more than the number of rubbers).
  • the number of the first continuous elastic members 231a is the number of the second continuous elastic members 231b (threads). It is more than the number of rubbers).
  • three first continuous expansion / contraction members 231a and two second continuous expansion / contraction members 231b are provided on the waist circumference portion 20. As the number of the first continuous expansion / contraction members 231a increases, the number of non-fixed portions 51 increases, and the area of the portion having high rigidity can be reduced.
  • the proportion of the region having high rigidity in the waist circumference portion 20 becomes small, and the flexibility of the waist circumference portion 20 can be further increased.
  • increasing the flexibility of the waist circumference 20 may damage the wearer's skin or cause discomfort. It is effective because it can be suppressed.
  • the number of the second continuous elastic members 231b (the number of rubber threads) among the plurality of continuous elastic members 231 arranged around the waist circumference 20 is the number of the first continuous elastic members 231a (threads).
  • the number of rubbers may be equal to or greater than the number of rubbers).
  • the proportion of the portion where the second continuous elastic member 231b is fixed in the waist circumference portion 20 becomes large, and the second continuous elastic member 231b Is less likely to be misaligned.
  • the movement of the first continuous expansion / contraction member 231a in the vertical direction is likely to be restricted as described above. That is, the misalignment of the continuous expansion / contraction member 231 can be suppressed as a whole. As a result, it is possible to further suppress the occurrence of swelling in the waist circumference portion 20 and deterioration of the fit.
  • At least one first telescopic member 231a is arranged between two second continuous telescopic members 231b and 231b arranged adjacent to each other in the vertical direction (longitudinal direction). That is, in the longitudinal direction, the non-fixed portion 51 of the first telescopic member 231a has a portion arranged so as to be vertically sandwiched by the fixed portions 52 and 52 of the second continuous telescopic member 231b. In such a portion, even if the first telescopic member 231a (non-fixed portion 51) is displaced in the vertical direction, it is moved in the vertical direction by the fixed portions 52, 52 arranged so as to sandwich the upper and lower portions thereof.
  • the non-fixed portion 51 of the first continuous telescopic member 231a is less likely to be largely displaced in the vertical direction, causing a bulge in the waist circumference portion 20, or a misalignment of the continuous telescopic member 231 to fit the waist circumference portion 20. It is possible to more efficiently suppress deterioration of sex.
  • the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b are alternately arranged side by side in the vertical direction (longitudinal direction).
  • the vertical direction there is a portion in which the first continuous telescopic member 231a is arranged between two adjacent second continuous telescopic members 231b and 231b, and such a portion repeats in the longitudinal direction. It is provided.
  • the non-fixed portion 51 of the first continuous expansion / contraction member 231a is less likely to be largely displaced in the vertical direction, and the waist circumference portion 20 is bulged or continuously expanded / contracted.
  • the fixed portion 52 and the non-fixed portion 51 are alternately arranged in the vertical direction, when the waist circumference portion 20 contracts in the width direction when the diaper 1 is worn, the surface of the waist circumference portion 20 is exposed. Wrinkles with a clean shape are likely to be formed. That is, the aesthetic appearance of the diaper 1 can be improved by regularly arranging the wrinkles having the same shape.
  • the waist circumference portion 20 has a discontinuous telescopic member 232 below the continuous telescopic member 231 arranged at the lowest position (inside in the longitudinal direction).
  • the discontinuous telescopic member 232 is discontinuous in at least a part of the region R1 that overlaps the absorbent core 11A in the width direction. That is, a part of the waist circumference stretchable member 23 that overlaps with the absorbent body 10 in the longitudinal direction has a non-stretchable region (discontinuous portion) in the central portion in the width direction. Therefore, the contraction of the absorbent core 11A by the waist circumference elastic member 23 can be suppressed, and the flatness of the absorbent core 11A can be ensured.
  • the discontinuous telescopic member 232 also preferably has an end fixing portion 55 and a non-fixing portion 56.
  • the end fixing portion 55 is a portion where both ends in the width direction of the continuous portion of the discontinuous telescopic member 232 are fixed to a pair of sheets 21 and 22.
  • the non-fixing portion 56 is a portion between the end fixing portions 55 in which the discontinuous telescopic member 232 is not fixed to the pair of sheets 21 and 22.
  • a pair of end fixing portions 55, 55 are provided at one end in the width direction of the waist circumference 20 and one end in the width direction of the absorbent core 11A. It is arranged, and the non-fixed portion 56 is arranged between them.
  • a pair of end fixing portions 55, 55 are arranged at the other end of the absorbent core 11A in the width direction and the other end of the waist circumference 20 in the width direction, and the non-fixing portion 56 is provided between them. Is placed.
  • the discontinuous telescopic member 232 also has the non-fixed portion 56 in this way, the flexibility of the waist circumference portion 20 is improved.
  • the present invention is not limited to the above, and the discontinuous telescopic member 232 may not have the non-fixed portion 56. Further, a part of the discontinuous telescopic member 232 may be fixed in the region between the pair of end fixing portions 55, 55. In this way, when the diaper 1 is worn, the waistline portion 20 can be easily fitted in the area between the pair of end fixing portions 55 and 55, and it is easy to prevent the diaper from floating from the wearer's skin. .. Further, among the plurality of discontinuous telescopic members 232, 232 ... Arranged in the vertical direction, those having a fixing portion in the region between the pair of end fixing portions 55, 55 and those having no fixing portion alternately alternate. It may be arranged. In this case, both flexibility and fit in the area can be achieved.
  • a post-treatment tape 70 is provided on the dorsal waist circumference 30 of the diaper 1.
  • the post-treatment tape 70 is a substantially rectangular tape-shaped member (tape member) that is long in the vertical direction, and is indicated by a tape fixing portion 71 (hatched portion in FIG. 2) on one side in the vertical direction (longitudinal direction). ), And has an adhesive portion 72 on the other side in the vertical direction (longitudinal direction).
  • the tape fixing portion 71 is formed of an adhesive or the like, and the post-treatment tape 70 is non-peelably fixed to the non-skin side surface of the non-skin side sheet 32 of the dorsal waist circumference portion 30 by the tape fixing portion 71.
  • An adhesive is applied to the adhesive portion 72, and before the diaper 1 is used, a part of the post-treatment tape 70 is folded with the adhesive portion 72 inside, so that the adhesive portion 72 is not exposed to the outside. In this way, the adhesive surface of the adhesive portion 72 is protected.
  • the adhesive portion 72 When disposing of the used diaper 1, the adhesive portion 72 is pulled by stretching the folded post-treatment tape 70 against the diaper 1 which is vertically rolled so that the absorbent body 10 is inside. It is exposed and the adhesive portion 72 side is wound around the diaper 1. As a result, the diaper 1 can be held in a rolled state, and the diaper 1 can be discarded without leaking excrement or the like adhering to the inside of the diaper 1 (absorbent main body 10) to the outside.
  • the post-treatment tape 70 is arranged so that the tape fixing portion 71 and the fixing portion 52 of the second continuous expansion / contraction member 231b (331b) overlap when viewed in the thickness direction. There is. If the tape fixing portion 71 of the post-processing tape 70 does not overlap with the fixing portion 52 when viewed in the thickness direction, the following problems may occur. That is, when the post-treatment tape 70 is pulled toward the non-skin side in the thickness direction after the diaper 1 is used, only the non-skin side sheet 22 (32) of the waist circumference 20 (back side waist circumference 30) is fixed with the tape. By being pulled toward the non-skin side via the portion 71, the non-skin side sheet 22 (32) may be lifted from the skin side sheet 21 (31). In this case, the non-skin side sheet 22 (32) may be torn, or the force for pulling the post-treatment tape 70 may be difficult to be transmitted to the waist circumference portion 20 (dorsal waist circumference portion 30).
  • the tape fixing portion 71 and the fixing portion 52 overlap each other, when the post-treatment tape 70 is pulled toward the non-skin side in the thickness direction after the diaper 1 is used, Both the skin side sheet 21 (31) and the non-skin side sheet 22 (32) joined in the thickness direction via the fixing portion 52 are pulled. Therefore, it is possible to prevent the sheets 21 (31) and 22 (32) constituting the waist circumference portion 20 from being torn and the force for pulling the post-processing tape 70 from being difficult to be transmitted to the waist circumference portion 20. This makes it easier to perform post-treatment of the diaper 1 after use.
  • FIG. 5 is a schematic plan view of the ventral waist circumference 20 in the modified example of the diaper 1.
  • a central fixing portion 53 for fixing the first continuous expanding / contracting member 231a to a pair of sheets 21 and 22 is provided at the central portion in the width direction of the first continuous expanding / contracting member 231a. That is, the first continuous telescopic member 231a has a central fixing portion 53 in the central portion in the width direction in the region between the end fixing portions 50, 50 on both sides in the width direction, and both outer sides in the width direction of the central fixing portion 53. Has non-fixed portions 51 and 51.
  • Other configurations of the diaper 1 in the modified example are the same as those in the above-described embodiment.
  • the non-fixing portion 51 continuous along the width direction is provided in the region between the end fixing portions 50, 50, and the first continuous expansion / contraction member 231a is provided.
  • the amount of movement (amplitude) of the first continuous expansion / contraction member 231a in the vertical direction may be the largest, so that there is a possibility that a large displacement may occur.
  • the first continuous expansion / contraction member 231a is fixed to the pair of sheets 21 and 22 by the central fixing portion 53 in the central portion in the width direction, the first continuous telescopic member 231a is fixed in the central portion in the width direction.
  • the continuous telescopic member 231a is suppressed from moving in the vertical direction. That is, the amount of movement (amplitude) of the first continuous telescopic member 231a in the vertical direction becomes small. Therefore, the vertical displacement of the waist circumference elastic member 23 can be suppressed, and it is possible to more easily suppress the waist circumference portion 20 from sagging or the fit from being deteriorated.
  • the length L51 of the non-fixed portion 51 in the width direction is larger than the width W10 of the absorbent body 10 (L51> W10). That is, the length (L51) obtained by subtracting the length L53 in the width direction of the central fixing portion 53 from the length in the width direction between the end fixing portions 50 and 50 on both sides in the width direction is the width of the absorbent body 10. It is larger than W10. Therefore, it is possible to prevent the non-fixed portion 51 from becoming narrow and maintain the flexibility of the waist circumference portion 20.
  • FIG. 6 is a schematic plan view of the ventral waist circumference portion 20 of the second embodiment.
  • the waist circumference portion 20 is inside the end fixing portion 50 in the width direction, and the sheet joint portion 60 (indicated by a thick black line in FIG. 6) in which a pair of sheets 21 and 22 are joined to each other. ).
  • Examples of the method of joining the pair of sheets 21 and 22 in the sheet joining portion 60 include welding and joining with an adhesive.
  • the non-skin side sheet 22 is likely to float and be visually recognized in the appearance of the diaper 1, and irregular large vertical wrinkles are likely to be formed when the waist circumference elastic member 23 contracts.
  • the pair of sheets 21 and 22 are easily separated in the thickness direction, and are non-skinned. The floating of the side sheet 22 may become noticeable.
  • the sheet joint portion 60 on the waist circumference portion 20, it is possible to suppress the floating of the non-skin side sheet 22 and improve the appearance of the diaper 1.
  • the sheet joint 60 shown in FIG. 6 extends longer in the width direction than in the vertical direction (longitudinal direction) of the diaper 1. Further, a portion for fixing the waist circumference elastic member 23 to the pair of sheets 21 and 22 (for example, the fixing portion 52 of the second continuous elastic member 231b) and the sheet joint portion 60 inside the end fixing portion 50 in the width direction. Are discontinuous and are spaced vertically spaced apart. That is, the sheet joint portion 60 is arranged without intersecting the waist circumference elastic member 23. Specifically, the sheet joint portion 60 shown in FIG. 8 extends continuously from one end edge to the other end edge of the waist circumference portion 20 and is arranged between all of the waist circumference expansion / contraction members 23 arranged in the vertical direction. ..
  • the sheet joint 60 regulates the vertical movement of the elastic member 23 around the waist. Therefore, it is easy to maintain the vertical distance between the waist circumference elastic member 23, and it is possible to easily prevent the waist circumference portion 20 from being sagging or the fit being deteriorated.
  • the flexibility of the waist circumference portion 20 may be reduced as compared with the case where the waist circumference portion 20 does not have the seat joint portion 60.
  • the sheet joint portion 60 is less likely to adhere to the wearer's skin than the waist circumference elastic member 23. Therefore, it is difficult for the user to feel the hardness of the adhesive or the like of the sheet joint portion 60 as compared with the hardness of the adhesive or the like for fixing the waist circumference elastic member 23 to the pair of sheets 21 and 22, and the waist circumference portion 20 is worn. It is possible to suppress a decrease in comfort.
  • the sheet joint portion 60 of the second embodiment is not limited to the sheet shape shown in FIG.
  • the sheet joint 60 may be arranged intermittently in the width direction without extending continuously in the width direction.
  • the sheet joint portion 60 may be arranged only in a part between a plurality of the waist-surrounding elastic members 23 arranged in the vertical direction.
  • the sheet joint portion 60 may be arranged inside the locking portion 40 in the width direction, or may be arranged inside the end fixing portion 50 in the width direction.
  • FIG. 7 is a schematic plan view of the ventral waist circumference portion 20 of the third embodiment.
  • the waist circumference portion 20 of the third embodiment has a sheet joining portion 60 in which a pair of sheets 21 and 22 are joined to each other inside the end fixing portion 50 in the width direction as in the second embodiment.
  • the shape and arrangement of the sheet joint portion 60 are different from those in the second embodiment.
  • the configuration other than the shape and arrangement of the sheet joint portion 60 is substantially the same as that of the second embodiment.
  • the broken line-shaped sheet joints 60 formed intermittently along the longitudinal direction (vertical direction) are arranged without intersecting the waist circumference elastic member 23. There is. That is, by joining the vertically long regions along the longitudinal direction between the two waist-circling elastic members 23, 23 adjacent to each other in the longitudinal direction (vertical direction) by using a joining means such as welding or an adhesive. , A broken line-shaped sheet joint 60 is formed along the longitudinal direction. A plurality of broken-line sheet joints 60 along the longitudinal direction are arranged side by side on the waist circumference 20 at intervals in the width direction.
  • the sheet joining portion 60 for joining the pair of sheets 21 and 22 in this way, it is possible to suppress the floating of the non-skin side sheet 22 and improve the appearance of the diaper 1 as in the second embodiment. it can. Further, since the movement of the waist circumference elastic member 23 in the vertical direction is restricted by the sheet joint portion 60, it is possible to easily suppress the occurrence of burr or deterioration of the fit around the waist circumference portion 20. In the third embodiment, since the seat joint portion 60 and the waist circumference elastic member 23 do not have overlapping portions, the area of the portion where the waist circumference portion 20 is fixed to the pair of seats 21 and 22 is Does not increase. Therefore, the flexibility of the waist circumference 20 is easily maintained.
  • a plurality of broken line-shaped sheet joints 60 along the longitudinal direction (vertical direction) of the waist circumference portion 20 are arranged side by side in the width direction (horizontal direction), whereby the waist circumference portion 20 Clean wrinkles are likely to be formed. That is, when the waist circumference portion 20 contracts in the width direction based on the elasticity of the waist circumference elastic member 23, the pair of sheets 21 and 22 are thick starting from the linear sheet joint portion 60 along the longitudinal direction. Concavo-convex deformation is likely to occur in the longitudinal direction. Therefore, wrinkles (vertical wrinkles) extending in the longitudinal direction along the sheet joint 60 are regularly arranged in the width direction on the surface of the waist circumference portion 20. By forming such wrinkles, it is possible to soften the touch of the waist circumference portion 20 and improve the appearance of the diaper 1.
  • the sheet joint 60 may be formed in a continuous linear shape along the longitudinal direction, and the sheet joint 60 and the expansion / contraction member 23 may overlap at a predetermined position.
  • the area of the joint portion between the elastic member 23 and the pair of sheets 21 and 22 increases, the flexibility of the waist circumference portion 20 decreases as compared with the case where the sheet joint portion 60 and the elastic member 23 do not overlap.
  • the contraction force when the elastic member 23 contracts in the width direction tends to act on the pair of sheets 21 and 22, the sheets 21 and 22 also tend to contract in the width direction based on the contraction force, and the body Vertical wrinkles are more likely to be formed on the peripheral portion 20.
  • the waist circumference 20 becomes softer to the touch, and the user is less likely to recognize the decrease in flexibility of the waist circumference 20. Therefore, even when the sheet joint portion 60 is formed in a linear shape continuous in the longitudinal direction, it is possible to suppress a decrease in wearing comfort of the waist circumference portion 20.
  • Pants-type disposable diaper (absorbent article), 10 Absorbent body, 11 Absorbent, 11A Absorbent Core, 11B Core Wrap Sheet, 12 top sheet, 13 back sheet, 14 exterior sheet, 20 ventral waist circumference (trunk circumference), 30 dorsal waist circumference (trunk circumference), 21,31 Skin side sheet (sheet), 22, 32 Non-skin side sheet (sheet), 23,33 Elastic member around the waist, 231 Continuous telescopic member (expandable member), 232 Non-continuous telescopic member, 231a 1st continuous telescopic member (1st telescopic member), 231b, 331b 2nd continuous telescopic member (2nd telescopic member), 40 Locking part, 50, 55 end fixing part, 51, 56 non-fixed part, 52 Fixed part, 53 Central fixing part, 60 sheet joint, 70 Post-treatment tape, 71 Tape fixing part, 72 Adhesive part

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne un article absorbant (1) qui comprend une paire de parties taille (20, 30) et un corps absorbant (10), la partie taille (20) comprenant une paire de feuilles (21, 22) et une pluralité d'éléments élastiques (23) ; chacun des éléments élastiques (23) étant disposé en continu depuis une extrémité vers l'autre extrémité de la partie taille (20) dans la direction de la largeur, et ayant une partie fixe terminale (40) sur les deux extrémités dans la direction de la largeur ; la pluralité d'éléments élastiques (23) comprenant un premier élément élastique (231a) qui a une partie non fixe (51) qui n'est pas fixée à la paire de feuilles (21, 22) vers l'intérieur des parties fixes terminales (40) dans la direction de la largeur, et un second élément élastique (231b) qui a une partie fixe (52) dans laquelle une région chevauchant la partie non fixe (51) dans la direction de la largeur est fixée à la paire de feuilles (21, 22) ; et la partie non fixe (51) a une longueur qui est plus longue que la longueur du corps absorbant (10) dans la direction de la largeur.
PCT/JP2020/009120 2019-03-20 2020-03-04 Article absorbant WO2020189279A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202080019865.6A CN113556999B (zh) 2019-03-20 2020-03-04 吸收性物品
BR112021018584-4A BR112021018584B1 (pt) 2019-03-20 2020-03-04 Artigo absorvente
RU2021127395A RU2765364C1 (ru) 2019-03-20 2020-03-04 Впитывающее изделие
CN202410193748.1A CN117982294A (zh) 2019-03-20 2020-03-04 吸收性物品

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Application Number Priority Date Filing Date Title
JP2019-053595 2019-03-20
JP2019053595A JP6811278B2 (ja) 2019-03-20 2019-03-20 吸収性物品

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WO2020189279A1 true WO2020189279A1 (fr) 2020-09-24

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PCT/JP2020/009120 WO2020189279A1 (fr) 2019-03-20 2020-03-04 Article absorbant

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JP (1) JP6811278B2 (fr)
CN (2) CN117982294A (fr)
BR (1) BR112021018584B1 (fr)
RU (1) RU2765364C1 (fr)
WO (1) WO2020189279A1 (fr)

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JP2022094089A (ja) * 2020-12-14 2022-06-24 ユニ・チャーム株式会社 吸収性物品
JP6878671B1 (ja) * 2020-12-14 2021-06-02 ユニ・チャーム株式会社 吸収性物品
JP7084978B1 (ja) * 2020-12-14 2022-06-15 ユニ・チャーム株式会社 吸収性物品

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JP2009148465A (ja) * 2007-12-21 2009-07-09 Kao Corp パンツ型使い捨ておむつ
JP2016120031A (ja) * 2014-12-24 2016-07-07 ユニ・チャーム株式会社 使い捨て着用物品
JP2017064133A (ja) * 2015-09-30 2017-04-06 大王製紙株式会社 吸収性物品の伸縮構造、及びパンツタイプ使い捨ておむつ
JP2018202023A (ja) * 2017-06-08 2018-12-27 王子ホールディングス株式会社 使い捨ておむつ

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CN113556999B (zh) 2024-03-01
JP6811278B2 (ja) 2021-01-13
BR112021018584A2 (fr) 2021-11-23
CN117982294A (zh) 2024-05-07
CN113556999A (zh) 2021-10-26
RU2765364C1 (ru) 2022-01-28
JP2020151257A (ja) 2020-09-24

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