WO2022130653A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2022130653A1
WO2022130653A1 PCT/JP2021/011389 JP2021011389W WO2022130653A1 WO 2022130653 A1 WO2022130653 A1 WO 2022130653A1 JP 2021011389 W JP2021011389 W JP 2021011389W WO 2022130653 A1 WO2022130653 A1 WO 2022130653A1
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WO
WIPO (PCT)
Prior art keywords
width direction
absorbent article
fixed
pair
absorbent
Prior art date
Application number
PCT/JP2021/011389
Other languages
English (en)
Japanese (ja)
Inventor
俊介 正木
和樹 長田
夏穂 久家
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN202180082267.8A priority Critical patent/CN116615165A/zh
Publication of WO2022130653A1 publication Critical patent/WO2022130653A1/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
    • 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
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/551—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 stretchable member are fixed to two sheet layers, and the elastic stretchable 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 bonded 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) so that 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 of 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 elastic elastic member when at least a part of the elastic elastic member is fixed to the waist circumference portion, it is possible to suppress the positional deviation of the elastic elastic member.
  • the region of the absorber portion is elastic. Since it is not directly joined to the elastic member, the absorber portion may shift in the vertical direction and move during wearing.
  • 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 waistline portion of the absorbent article while suppressing the occurrence of sagging in the waistline portion. To do.
  • the main invention for achieving the above object is an absorbent article having a width direction, a longitudinal direction and a thickness direction, a pair of waist circumference portions, and an absorbent body having an absorbent core in a deployed state.
  • At least one of the pair of waistline portions has a pair of seats and a plurality of stretchable members arranged between the pair of seats that expand and contract in the width direction, and each of the stretchable members has a stretchable member.
  • the one end portion of the waist circumference portion is continuously arranged from one end portion in the width direction to the other end portion, and both ends in the width direction have a pair of end fixing portions fixed to the pair of sheets.
  • the plurality of telescopic members include a first telescopic member having a non-fixed portion that is not fixed to the pair of sheets inside the end fixing portion in the width direction, and at least the non-fixed portion in the width direction.
  • the region overlapping the portion has at least one second telescopic member having a fixed portion fixed to the pair of sheets, and the length of the non-fixed portion in the width direction is the absorbency. It is an absorbent article characterized by being shorter than the length of the main body.
  • the present invention it is possible to improve the flexibility of the waistline portion of the absorbent article and suppress the occurrence of burr in the waistline portion.
  • FIG. 2 is a schematic cross-sectional view taken along the line II of FIG.
  • 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 the schematic plan view of the ventral waist circumference part 20 for demonstrating the overlap fixing part 53 in 1st Embodiment.
  • It is a schematic plan view of the ventral waist circumference portion 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 in another modification.
  • It is a schematic plan view of the ventral waist circumference portion 20 of the third embodiment.
  • the unfolded state it is an absorbent article having a width direction, a longitudinal direction, and a thickness direction, and has a pair of waist circumference portions and an absorbent body having an absorbent core, and is among the pair of waist circumference portions. At least one has a pair of seats and a plurality of stretchable members arranged between the pair of seats that expand and contract in the width direction, and each stretchable member has the stretchable member in the width direction of the one waist circumference portion.
  • the plurality of telescopic members have a pair of end fixing portions that are continuously arranged from one end to the other end and both ends in the width direction are fixed to the pair of sheets, and the plurality of telescopic members are in the width direction.
  • the first telescopic member having a non-fixed portion not fixed to the pair of sheets and a region overlapping with at least the non-fixed portion in the width direction are formed on the inside of the end fixing portion in the pair of sheets. It is characterized in that it has at least one second telescopic member having a fixed portion fixed to, and the length of the non-fixed portion is shorter than the length of the absorbent body in the width direction. It is an absorbent article.
  • the first telescopic member since the first telescopic 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 waistline portion is bulged, and the fit is deteriorated. It can be suppressed.
  • the absorbent core has a minimum portion in which the length of the absorbent core in the width direction is minimized, and the length of the non-fixed portion in the width direction is the said. It is desirable that it is shorter than the minimum portion and longer than half the length of the minimum portion.
  • the provision of the non-fixed portion improves the flexibility and improves the skin contact, but if the length of the non-fixed portion is too long, blistering may easily occur. Therefore, by making the length of the non-fixed portion shorter than the minimum portion of the absorbent core and longer than half the length of the minimum portion in the width direction, the flexibility of the waist circumference portion and the prevention of sagging are balanced. It becomes easier to take.
  • the pair of girth portions have side regions located on both outer sides of the absorbent body in the width direction, respectively, and both outer sides of the absorbent body in the longitudinal direction and.
  • a value obtained by dividing the total length of the fixed portion in the side region by the total length of the plurality of elastic members is the upper region. It is desirable that the total length of the fixed portion is larger than the value obtained by dividing the total length of the fixed portion by the total length of the plurality of elastic members.
  • the non-fixed portion of the first stretchable member straddles the center of the absorbent body in the width direction
  • the second stretchable member is the first stretchable member and the longitudinal portion. It is desirable that the second telescopic member is arranged adjacent to each other in at least one of the directions, and the second telescopic member has the fixing portion as a whole between the pair of end fixing portions in the width direction.
  • the absorbent core has a minimum portion in which the length of the absorbent core in the width direction is minimized, and the length of the non-fixed portion in the width direction is the said. Shorter than the smallest portion, the non-fixed portion straddles the center of the absorbent body in the width direction and extends to at least one of both outer sides of the non-fixed portion in the width direction to the end fixed portion. It is desirable that the existing fixing portion is provided.
  • the portion where the non-fixed portion is arranged is likely to be bulged, but the fixed portion extending to the end fixed portion is provided on at least one of both sides of the non-fixed portion in the width direction.
  • the absorbent core has a minimum portion in which the length of the absorbent core in the width direction is minimized, and the length of the non-fixed portion in the width direction is the said. It is desirable that the second telescopic member is shorter than the minimum portion and has the fixing portion as a whole between the pair of end fixing portions in the width direction.
  • the first telescopic member since the first telescopic member has a non-fixed portion, the area of the highly rigid portion of the waist circumference portion is reduced, and the non-fixed portion in the width direction is improved while improving the flexibility.
  • the length of the absorbent core By making the length of the absorbent core shorter than the length of the minimum part of the absorbent core, the occurrence of blisters is suppressed.
  • the second telescopic member does not have a non-fixed portion, the displacement of the first telescopic member is suppressed and the fit is improved.
  • the second telescopic member has the fixing portion as a whole between the pair of end fixing portions in the width direction, and is provided on at least one of the pair of waist circumference portions. It is desirable that the number of the first telescopic members provided is smaller than the number of the second telescopic members provided on one of the pair of waist circumference portions.
  • the first stretchable member has a fixing portion fixed to the pair of sheets, and the fixing portion of the first stretchable member and the fixing portion of the second stretchable member are described above. It is desirable that the overlapping fixing portions have overlapping fixing portions in the width direction, and the overlapping fixing portions are outward in the longitudinal direction with respect to the absorbent body.
  • the fixing portion of the first telescopic member and the fixing portion of the second telescopic member have overlapping fixing portions overlapping in the width direction, and the absorbent main body has a longitudinal direction (vertical direction). By being provided on the outside, it is possible to further suppress the absorbent body from trying to move upward.
  • the first stretchable member has a fixing portion fixed to the pair of sheets, and the fixing portion of the first stretchable member and the fixing portion of the second stretchable member are described above.
  • the absorbent body by providing the overlapping fixing portion so as to overlap with the absorbent body, the absorbent body can be further pressed so as not to shift, and the fit is improved.
  • the length of the overlapping fixing portion in the width direction of the absorbent article is longer than the length of each end fixing portion.
  • the overlapping fixing portions are shorter than the length of the end fixing portions. Compared with the case where the portion is provided, it is possible to suppress the expansion / contraction member from shifting in the vertical direction and reduce the deterioration of the fit of the waist circumference portion.
  • a post-treatment tape for holding the absorbent article in a rolled state when the absorbent article after use is disposed of is provided on the non-skin side of the waistline portion of the absorbent article.
  • 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 overlapping parts.
  • 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 portion. This makes it easier to post-treat the absorbent article after use.
  • the absorbent article has a sheet joint portion for joining the facing surfaces of the pair of sheets, and the sheet joint portion is provided so as to overlap the non-fixed portion in the width direction. Is desirable.
  • the absorbent article has a symbol that can be visually recognized from the non-skin side, and that the symbol and the non-fixed portion have a portion that overlaps in the thickness direction.
  • the girth portion is laminated with a hydrophobic nonwoven fabric adjacent to the non-skin side of the hydrophobic nonwoven fabric in at least a part of the region, and is more hydrophilic than the hydrophobic nonwoven fabric. It is desirable to have a hydrophilic non-woven fabric, and the non-fixed portion and the hydrophilic non-woven fabric have a portion that overlaps in the thickness direction.
  • an absorbent article by providing a highly hydrophilic hydrophilic non-woven fabric on the non-skin surface side, it becomes easy to absorb moisture such as sweat from the wearer's skin and evaporate the absorbed moisture to the atmosphere.
  • the hydrophilic non-woven fabric tends to contain water, when it is pressed against the body by the elastic member around the waist, the absorbed water may return to the skin side.
  • the pressing force can be reduced and the liquid return from the hydrophilic nonwoven fabric side can be suppressed.
  • At least one of the pair of waist circumference portions is arranged so that the pair of sheets and a sheet different from the pair of sheets overlap each other in the thickness direction.
  • At least one of the laminated portion or the pair of sheets has a folded portion folded back toward the inner surface side of the waist circumference portion, and the laminated portion or the folded portion is provided with the first elastic member. It is desirable to be there.
  • the rigidity can be guaranteed as compared with the case of only a pair of sheets. Further, by providing the non-fixed portion of the first telescopic member in such a portion having high rigidity as compared with the non-fixed portion provided in the portion of only a pair of seats, it is possible to suppress the diaper itself from sagging.
  • the non-fixed portion of the absorbent article is arranged so as to be asymmetric with respect to the center line passing through the center of the absorbent body in the width direction.
  • the first telescopic member since the first telescopic 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.
  • the non-fixed portion of the absorbent article straddles the end of the absorbent core in the width direction.
  • the stretchable member having a non-fixed portion first stretchable member
  • the stretchable member having a fixed portion second stretchable member
  • the stretchable member is Since the non-fixed portion that is not fixed extends more preferentially, the non-fixed portion fits the wearer side first when worn.
  • the side portion of the absorbent core first hits the body to fit and facilitates close contact with the wearer. This reduces the risk of leakage from the ends of the absorbent core.
  • FIG. 1 is a schematic perspective view of the pants-type disposable diaper 1 (hereinafter, also referred to as “diaper 1”) of the first embodiment.
  • FIG. 2 is a schematic plan view of the diaper 1 in the expanded state and the extended state.
  • FIG. 3 is a schematic cross-sectional view taken along the line I-I of FIG.
  • the "deployed state" in the diaper 1 is a state in which the pair of waist circumference portions 20 and 30 (described later) are separated by breaking the joint of the joint 40 described later, and the diaper 1 is opened in the longitudinal direction.
  • the "extended state" in the diaper 1 is a state in which the diaper 1 is extended without wrinkles, and the dimensions of each member (for example, waist circumference portions 20, 30 and the like) constituting the diaper 1 match the dimensions of the individual member. Or it is in a stretched state until it reaches a length close to it.
  • the diaper 1 has a width direction, a vertical direction, and a front-back 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 waistline 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 circumference portions 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 portion 20, and the one that is applied to the dorsal portion of the wearer is referred to as the dorsal waist circumference portion 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 (ventral side) of the absorbent body 10 in the longitudinal direction at the center of the ventral waist circumference portion 20 in the width direction. ) Is arranged, and the other end (dorsal side) of the absorbent body 10 in the longitudinal direction is arranged in the central portion of the dorsal waist circumference portion 30 in the width direction.
  • the absorbent body 10 is folded in half at substantially the center in the longitudinal direction thereof, and both side portions in the width direction of the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are joined by a pair of joint portions 40.
  • the diaper 1 in the pants-type state shown in FIG. 1 is obtained.
  • the longitudinal direction of the unfolded diaper 1 is along the vertical direction of the pants-shaped diaper 1.
  • welding, joining with an adhesive, or the like can be exemplified.
  • the absorbent body 10 is arranged on the absorbent body 11, the liquid-permeable top sheet 12 arranged on the skin side of the absorbent body 11, and on the non-skin side of the absorbent body 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 portion 20 and the dorsal waist circumference portion 30 are a flexible skin side sheet 21, 31 such as a non-woven fabric, a non-skin side sheet 22, 32 (a pair of sheets), and a skin side, respectively. It has a plurality of waist-circling elastic members 23, 33 (expandable members) arranged between the sheets 21, 31 and the non-skin side sheets 22, 32, which expand and contract in the width direction.
  • the plurality of waistline elastic members 23, 33 are arranged side by side at intervals in the vertical direction (longitudinal direction) between the skin side sheets 21, 31 and the non-skin side sheets 22, 32, and extend in the width direction. It is fixed in the state of being fixed.
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 expand and contract in the width direction to fit the wearer's waist circumference portion.
  • the waistline elastic members 23 and 33 include thread-like elastic members such as rubber threads and elongated elastic sheets.
  • the configurations of the waist circumference portions 20 and 30 are not limited to those shown in the figure, 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 portion 20 and the dorsal waist circumference portion 30 are separated, and the so-called ventral waist circumference portion 20, the dorsal waist circumference portion 30, and the absorbent main body 10 are provided.
  • the three-piece type is illustrated, but it is not limited to this.
  • the ventral waist circumference 20 and the dorsal waist circumference 30 are formed of one continuous member via the lower crotch, and the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are integrated with an exterior member and absorbed. It may be a so-called two-piece type pants-type disposable diaper having two members of the sex 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 circumference portions 20 and 30 may have the following configuration. That is, both waist circumference portions 20 and 30 may have the following configurations, or the dorsal waist circumference portion 30 may have the following configuration unlike the ventral waist circumference portions 20 and the ventral waist circumference portions. 20 may have the following configuration, and the dorsal waist circumference portion 30 may be different from the following configuration. The same applies to other embodiments.
  • the plurality of waist circumference expansion / contraction members 23 included in the ventral waist circumference portion 20 are a plurality of “continuous expansion / contraction members 231 continuously arranged from one end portion to the other end portion in the width direction of the waist circumference portion 20”. (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 joining portions 40 in the width direction separately from the pair of joining portions 40.
  • the pair of joints 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 expansion / contraction member 231a (first expansion / contraction 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 integrally formed with the end fixing portions 50, 50, or may be formed separately from the end fixing portion 50.
  • the first continuous expansion / contraction member 231a of the present embodiment has a non-fixing portion 51 in a part of the region between the end fixing portions 50, 50 in the width direction.
  • the fixed portion 52 of the second continuous telescopic member 231b may be provided at least in the portion where the non-fixed portion 51 is provided in the width direction, but corresponds to the position where the non-fixed portion 51 is provided.
  • the fixing portion 52 may be 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.
  • the portion where the waist circumference expansion / contraction member 23 is fixed to the pair of sheets 21 and 22 (fixed portion 52) is compared with the portion where the waist circumference expansion / contraction member 23 is not fixed (non-fixed portion 51).
  • the rigidity of the 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). 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 waist circumference telescopic member 23 has a portion (non-fixed portion 51) that is not fixed to the pair of seats 21 and 22, the flexibility of the waist circumference portion 20 can be improved.
  • the non-fixed portions 51 are all between the pair of end fixing portions 50 and 50, the position of the first continuous telescopic member 231a is likely to shift when worn, and the pair of seats 21 and 22 are squeezed. May occur.
  • the length of the non-fixed portion 51 is made longer than the length of the absorbent main body 10 in the width direction, the region of the absorbent main body 10 is directly joined to the waist circumference elastic member 23 (first continuous elastic member 231a). Therefore, there is a possibility that the absorbent main body 10 may be displaced in the vertical direction during wearing.
  • the length L51 of the non-fixed portion 51 (the total length of the non-fixed portions 51 provided for a certain first continuous expansion / contraction member 231a in the width direction) is determined in the width direction.
  • the length (width) of the absorbent body 10 is shorter than W10.
  • the position where the non-fixed portion 51 is provided in the first continuous telescopic member 231a is such that at least a part of the non-fixed portion 51 overlaps the absorbent main body 10 in the width direction as in the present embodiment of FIG.
  • all of the non-fixed portions 51 may be provided so as to overlap the absorbent main body 10 in the width direction.
  • the first continuous stretchable member 231a since the first continuous stretchable member 231a is not fixed to the pair of sheets 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 in the vertical direction with respect to the waist circumference portion 20.
  • the waist circumference portion 20 When the diaper 1 is worn, if the waist circumference portion 20 is displaced in the vertical direction of the first continuous telescopic member 231a, the seats 21 and 22 constituting the waist circumference portion 20 may be sagging or the wearer may wear the diaper 1. There is a possibility that the tightening in the waist circumference portion will be uneven and the fit of the waist circumference portion 20 will be deteriorated.
  • the first continuous expansion / contraction member 231a (non-fixed portion) is provided by providing the fixed portion 52 in the region overlapping the region where the non-fixed portion 51 is provided in the width direction.
  • the vertical movement of 51) is restricted by the second continuous expansion / contraction member 231b (fixing portion 52).
  • the waistline portion 20 is improved by providing the non-fixed portion 51, and the waist circumference portion 20 is effectively bent by providing the fixed portion 52 at a predetermined position. It can be suppressed.
  • the arrangement of the non-fixed portion 51 in the waist circumference portion 20 is not limited to the arrangement shown in FIG. 4, and a plurality of non-fixed portions 51 may be provided in one first continuous expansion / contraction member 231a.
  • a large number of non-fixed portions 51 the area of the portion having high rigidity becomes smaller, and the flexibility can be further improved.
  • the fixed portion 52 By providing the fixed portion 52 in the region overlapping the non-fixed portion 51 in the width direction, it is possible to prevent the position shift of the first continuous telescopic member 231a in the non-fixed portion 51 in the vertical direction.
  • the first continuous telescopic member 231a also has a fixing portion 52 fixed to a pair of sheets 21 and 22 in the region between the end fixing portions 50 and 50 on both sides in the width direction. That is, in the region between the pair of end fixing portions 50, 50, the fixing portion 52 is provided in the portion other than the non-fixing portion 51 in the first continuous expansion / contraction member 231a. Since the first continuous expansion / contraction member 231a is a free portion that is not fixed to the sheets 21 and 22 in the region where the non-fixed portion 51 is provided, it can move in the vertical direction. However, by having the fixing portion 52, the movement of the first continuous expansion / contraction member 231a in the vertical direction is suppressed.
  • the amount of movement (amplitude) of the first continuous expansion / contraction member 231a in the vertical direction becomes small. Therefore, the vertical positional deviation of the waist circumference expansion / contraction 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 second continuous expansion / contraction member 231b also has a non-fixed portion 51 in which the second continuous expansion / contraction member 231b is not fixed to the pair of sheets 21 and 22.
  • a non-fixed portion 51 in which the second continuous expansion / contraction member 231b is not fixed to the pair of sheets 21 and 22.
  • 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 the 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 wearing the diaper 1, the surface of the waist circumference portion 20 is covered. 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 first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b are provided above the absorbent core 11A in the vertical direction. Since the absorbent core 11A is formed of liquid absorbent fibers, it has higher rigidity than the waist circumference portion 20 and the like. Therefore, the non-fixed portion 51 and the fixed portion avoid such a portion of the absorbent core 11A. By providing 52, it becomes easy to realize a uniform fit.
  • a first continuous expansion / contraction member 231a is also provided at the upper end portion of the waist circumference portion 20 in the vertical direction. Since the non-fixed portion 51 of the first continuous expansion / contraction member 231a is also provided at the upper end portion of the waist circumference portion 20, the upper end portion of the waist circumference portion 20 has less highly rigid portions, and the flexibility of the upper end portion is improved. Can be made to.
  • the discontinuous expansion / contraction member 232 may also have 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 in the continuous portion of the discontinuous stretchable member 232 are fixed to the pair of sheets 21 and 22.
  • the non-fixing portion 56 is a portion where the discontinuous expansion / contraction member 232 is not fixed to the pair of sheets 21 and 22 between the end fixing portions 55.
  • a pair of end fixing portions 55, 55 are arranged at one end in the width direction of the waist circumference portion 20 and one end in the width direction of the absorbent core 11A.
  • the non-fixed portion 56 is arranged between them.
  • a pair of end fixing portions 55, 55 are arranged at the other end in the width direction of the absorbent core 11A and the other end in the width direction of the waist circumference portion 20, and the non-fixing portion 56 is between them. Have been placed.
  • the discontinuous telescopic member 232 also has the non-fixed portion 56, so that the flexibility of the waist circumference portion 20 is improved.
  • the present invention is not limited to the above, and the discontinuous expansion / contraction member 232 may not have the non-fixed portion 56.
  • a part of the discontinuous expansion / contraction member 232 may be fixed in the region between the pair of end fixing portions 55, 55. By doing so, when the diaper 1 is worn, the waistline portion 20 can be easily fitted in the region between the pair of end fixing portions 55, 55, and it is easy to prevent the wearer's skin from floating. ..
  • 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 portion 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) have an overlapping portion when viewed in the thickness direction. There is. If the tape fixing portion 71 of the post-treatment 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 portion 20 (dorsal waist circumference portion 30) is the tape fixing portion 71.
  • the non-skin side sheet 22 (32) may be lifted from the skin side sheet 21 (31) by being pulled toward the non-skin side.
  • 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 or the force for pulling the post-treatment tape 70 from being easily transmitted to the waist circumference portion 20. This makes it easier to perform post-treatment of the diaper 1 after use.
  • the non-fixed portion 51 of the first continuous expansion / contraction member 231a straddles the end 11e of the absorbent core 11A in the width direction.
  • the non-fixed portion 51 to which the waist circumference expansion / contraction member 23 is not fixed is It will grow more preferentially. As a result, when worn, the portion of the non-fixed portion 51 first fits the wearer's body.
  • the non-fixed portion 51 straddles the end 11e of the absorbent core 11A, that is, overlaps with the end 11e of the absorbent core 11A, so that the side portion of the absorbent core 11A first hits the body and fits.
  • FIG. 5 is a schematic plan view of the ventral waist circumference portion 20 for explaining the overlapping fixing portion 53 in the first embodiment.
  • the diaper 1 of the present embodiment has an overlapping fixing portion 53 in which the fixing portion 52 of the first continuous expansion / contraction member 231a and the fixing portion 52 of the second continuous expansion / contraction member 231b overlap in the width direction. is doing.
  • a plurality of overlapping fixing portions 53 (53a to 53f) are provided along the vertical direction, and each overlapping fixing portion 53 straddles the central WCL in the width direction of the absorbent main body 10. ..
  • the central portion of the absorbent body 10 in the width direction is a portion that is in contact with the center of the wearer's body, and the position of the absorbent body 10 may shift in the vertical direction (longitudinal direction) due to the movement of the body during wearing. was there.
  • the overlapping fixing portion 53 in which the fixing portions 52 overlap in the width direction is provided so as to straddle the central WCL in the width direction, thereby limiting the movement of the absorbent main body 10 and limiting the movement of the absorbent main body 10. It is possible to prevent the position of the above from being easily displaced in the vertical direction.
  • the overlapping fixing portion 53 is not limited to a configuration that straddles the central WCL in the width direction of the absorbent body 10, and has a portion that overlaps the absorbent body 10 in the width direction while shifting the absorbent body 10 in the vertical direction. It suffices if it is arranged so as to make it difficult.
  • the overlapping fixing portions 53a to 53d are provided outside the absorbent main body 10 in the longitudinal direction.
  • the absorbent main body 10 is displaced upward in the vertical direction. Can be suppressed.
  • the overlapping fixing portions 53a to 53d are spaced apart from the absorbent main body 10 in the longitudinal direction (vertical direction) in the longitudinal direction, but at least a pair of overlapping fixing portions 53 are arranged. Just do it.
  • the overlapping fixing portions 53e and 53f overlap with the absorbent main body 10 in the thickness direction.
  • the overlapping fixing portion 53 so as to overlap with the absorbent main body 10 in the thickness direction, the portion of the absorbent main body 10 can be suppressed so as not to be firmly displaced, and the fit of the diaper 1 is improved. ..
  • the overlapping fixing portions 53d and 53e do not necessarily necessarily all overlap with the absorbent main body 10 when viewed in the thickness direction, and may have an overlapping portion.
  • the length L53 in the width direction of the overlapping fixing portion 53 is longer than the length L50 of the end fixing portion 50.
  • the length may be shorter than the length L50 of the end fixing portion 50.
  • the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b are arranged adjacent to each other in the longitudinal direction.
  • the length L53 in the width direction of the overlapping fixing portion 53 is longer than the length LB23 in the longitudinal direction between the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b.
  • the first continuous expansion / contraction member Positions of the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b as compared with the case where the overlapping fixing portion 53 is provided so as to be shorter than the length (interval) LB23 in the longitudinal direction of the 231a and the second continuous expansion / contraction member 231b. Can be suppressed from shifting in the vertical direction, and deterioration of the fit of the waist circumference portion 20 (30) can be reduced.
  • FIG. 6 is a schematic plan view of the ventral waist circumference portion 20 in the modified example of the diaper 1.
  • the discontinuous telescopic member 232 does not have the non-fixed portion 56, but all have the fixed portions 55'fixed to the pair of sheets 21 and 22.
  • the region located on the outer side (both outer sides in the width direction) of both ends 10es and 10es in the width direction of the absorbent body 10 is defined as the side region SD (the side region SD (both outer sides in the width direction).
  • the region outside the upper end 10eu of the absorbent body 10 in the longitudinal direction (both outer sides in the longitudinal direction) and at a position overlapping with the absorbent body 10 in the width direction is surrounded by the upper region PD (bold dotted line). And the area shown by the dot pattern).
  • the value obtained by dividing the total length of the fixed portions 52 and 55'in the side region SD by the total length of the plurality of elastic members 23 around the waist (the elastic member of the present invention) is the fixed portion in the upper region PD. It is larger than the value obtained by dividing the total length of 52 by the total length of the plurality of elastic members 23 around the waist (the elastic member of the present invention).
  • the first continuous expansion / contraction member 231a1 is located at the upper end in the vertical direction
  • the second continuous expansion / contraction member 231b1 and the first continuous expansion / contraction member 231a2 are located from there toward the lower side in the vertical direction.
  • the second continuous expansion / contraction member 231b2, the first continuous expansion / contraction member 231a3, and the second continuous expansion / contraction member 231b3 are arranged at intervals in the vertical direction, and ten discontinuous expansion / contraction members 232 are arranged further below.
  • the total length of the plurality of waistline stretchable members 23 in the side region SD is the above-mentioned first continuous stretchable member 231a1 to 231a3, the second continuous stretchable member 231b1 to 231b3, and the discontinuous stretchable member 232, respectively, in the side region SD. Is the total length of.
  • the total length of the fixed portions 52 and 55'in the side region SD is, for example, in the side region SD on one side in the width direction of FIG.
  • the upper region PD contains the first continuous telescopic members 231a1, 231a2 and the second continuous telescopic members 231b1, 231b2, and the lengths of the elastic members 231a1,231a2, 231b1 and 231b2 in the upper region PD.
  • the total length is the total length of the plurality of waist-circling elastic members 23, and the total length of the fixed portions 52 of the first continuous elastic member 231a2 and the second continuous elastic member 231b1 and 231b2 is the fixed portion 52. The total length of.
  • the ratio occupied by the fixed portion 52 (55') is larger than that of the upper region PD.
  • the phenomenon that the non-fixed portion 51 is displaced in the vertical direction (longitudinal direction) and the diaper 1 is sagging is firmly suppressed by providing a large number of fixed portions 52 and 55'in the side region SD to fit the body.
  • the upper region PD which is a portion that easily touches the skin, flexibility can be ensured by reducing the number of fixed portions 52 as compared with the side region SD.
  • FIG. 7 is a schematic plan view of the ventral waist circumference portion 20 of the second embodiment.
  • the plurality of waist circumference telescopic members 23 included in the ventral waist circumference portion 20 are all continuously arranged from one end portion to the other end portion in the width direction of the waist circumference portion 20.
  • the telescopic member of the present invention), the first continuous telescopic member 231a and the second continuous telescopic member 231b are alternately arranged in the longitudinal direction.
  • the fixing portions 52 are 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.
  • the second continuous expansion / contraction member 231b is fixed in a wide range in the width direction by the fixing portion 52.
  • the fixing portion 52 As a result, even if the non-fixed portion 51 of the first continuous stretchable member 231a tries to move in the vertical direction, the movement is restricted by the fixed portion 52 of the second continuous stretchable member 231b, and it becomes easy to suppress a large displacement. ..
  • the absorbent core 11A has a portion in which the length (width) in the width direction narrows inward toward the central portion in the longitudinal direction of the absorbent core 11A.
  • the absorbent core 11A has a portion in which the length (width) in the width direction narrows inward. It has a minimum portion M1 whose length in the width direction is the minimum.
  • the length of the non-fixed portion 51 is shorter than the minimum portion M1 of the absorbent core 11A and longer than half the length of the minimum portion M1.
  • the length of the non-fixed portion 51 shorter than the minimum portion M1 of the absorbent core 11A and longer than half the length of the minimum portion M1, the flexibility of the waist circumference portion 20 and the prevention of blistering are balanced. It becomes easier to take.
  • the length of the non-fixed portion 51 in the width direction is shorter than the minimum portion M1 of the absorbent core 11A and longer than half the length of the minimum portion M1 as described above.
  • the length of the non-fixed portion 51 in the width direction is preferably shorter than at least the length (width) in the width direction of the longitudinal end 11Aeu of the absorbent core 11A, and the minimum portion M1 of the absorbent core 11A. It is more preferably less than or equal to the length. With such a configuration, it is possible to easily balance the flexibility of the waist circumference portion 20 and the prevention of blistering.
  • the non-fixed portion 51 of the first continuous telescopic member 231a straddles the central WCL in the width direction of the absorbent main body 10. Doing so increases flexibility in the central part in the width direction.
  • the amount of movement (amplitude) of the first continuous expansion / contraction member 231a in the vertical direction may be large, but the first continuous expansion / contraction member 231a is adjacent to the first continuous expansion / contraction member 231a in the longitudinal direction.
  • the second continuous expansion / contraction member 231b may be arranged adjacent to at least one of the first continuous expansion / contraction member 231a in the longitudinal direction.
  • the second continuous telescopic member 231b arranged directly below or directly above the first continuous telescopic member 231a having the non-fixed portion 51 has the fixed portion 52 from one end to the other end in the width direction. , It is possible to suppress the occurrence of sagging of the waist circumference portion 20.
  • the first continuous expansion / contraction member 231a is provided while improving the flexibility. The occurrence of misalignment is suppressed.
  • the second continuous expansion / contraction member 231b provided so as to overlap the non-fixed portion 51 in the width direction has the fixing portion 52 as a whole between the pair of end fixing portions 50, whereby the first continuous expansion / contraction member 231a is provided. It is possible to further suppress the movement in the vertical direction, and it is possible to reduce the deterioration of the fit due to the occurrence of blisters.
  • the first continuous telescopic member 231a of the present embodiment is provided with fixed portions 52 extending to the end fixed portion 50 on both outer sides of the non-fixed portion 51 in the width direction.
  • the first continuous expansion / contraction member 231a is easy to move, so that blisters are likely to occur. That is, by fixing to the end in the width direction, the first continuous expansion / contraction member 231a can be made difficult to shift. It is not always necessary to provide the fixing portions 52 on both sides of the non-fixing portion 51 of the first continuous expansion / contraction member 231a in the width direction, and at least one of the two outer sides of the non-fixing portion 51 up to the end fixing portion 50. It is desirable that the extending fixing portion 52 is provided.
  • the number of the first continuous elastic member 231a (the number of thread rubbers) among the plurality of elastic member 23 arranged in at least one of the pair of waist circumference portions 20 and 30 is the second. It is less than the number of continuous expansion / contraction members 231b (the number of rubber threads).
  • the number of continuous expansion / contraction members 231b (the number of rubber threads).
  • five first continuous expansion / contraction members 231a and six second continuous expansion / contraction members 231b are provided on the waist circumference portion 20.
  • the number of the fixing portions 52 increases, and the second continuous expansion / contraction member 231b is easily fixed firmly to the pair of sheets 21 and 22.
  • the ratio 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 increased. 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, it is possible to suppress the positional deviation of the waist circumference expansion / contraction member 23 as a whole. As a result, it is possible to further suppress the occurrence of burr in the waistline portion 20 and the deterioration of the fit.
  • the number of the first continuous expansion / contraction member 231a (the number of thread rubbers) is the number of the second continuous expansion / contraction members 231b (thread rubber) among the plurality of continuous expansion / contraction members 231 arranged in the waist circumference portion 20.
  • the number may be greater than or equal to).
  • 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. That is, by increasing the number of the non-fixed portions 51 to be larger than the number of the fixed portions 52, 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. For example, when the wearer of the diaper 1 is an infant or an elderly person with weak skin, the flexibility of the waist circumference 20 can be increased to prevent discomfort. It is valid.
  • FIG. 8 is a schematic plan view of the ventral waist circumference portion 20 in another modified example.
  • the plurality of waist circumference expansion / contraction members 23 included in the waist circumference portion 20 are all continuously arranged from one end portion to the other end portion in the width direction of the waist circumference portion 20.
  • the telescopic member 231 is provided, the arrangement of the fixed portion 52 and the non-fixed portion 51 is different from the above-described embodiment.
  • the non-fixed portion 51 is arranged so as to be asymmetric with respect to the center line (WCL) passing through the center in the width direction of the absorbent body 10.
  • the non-fixed portion 51 is arranged so as not to be symmetrical with respect to the center in the width direction of the absorbent main body 10, the presence of the non-fixed portion 51 itself causes the portion of the waist circumference portion 20 to have high rigidity. The area can be reduced and the flexibility can be improved.
  • FIG. 9 is a schematic plan view of the ventral waist circumference portion 20 of the third embodiment.
  • the waist circumference portion 20 is inside the end fixing portion 50 in the width direction, and the pair of sheets 21 and 22 are joined to each other in the sheet joint portion 60 (shown by a thick black line in FIG. 9). ).
  • welding, joining with an adhesive, or the like can be exemplified.
  • the non-skin side sheet 22 is easily visible in the appearance of the diaper 1, and irregular large vertical wrinkles are likely to be formed when the waistline elastic member 23 contracts.
  • the sheet joint portion 60 is provided 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 portion 60 shown in FIG. 9 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. , Discontinuous and spaced vertically apart. That is, the sheet joint portion 60 is arranged without intersecting the waist circumference expansion / contraction member 23. Specifically, the sheet joint portion 60 shown in FIG. 9 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 waist circumference portion 20 By providing the waist circumference portion 20 with the sheet joint portion 60 extending long in the width direction in this way, regular fine vertical wrinkles are likely to be formed when the waist circumference expansion / contraction member 23 contracts. Therefore, the appearance of the diaper 1 is improved, and the user can be given the impression that the waist circumference portion 20 has a good fit.
  • the sheet joint portion 60 extends continuously from one end edge to the other end edge of the waist circumference portion 20, that is, is provided so as to overlap the non-fixed portions 51 and 56 in the width direction. There is. Since the sheet joint portion 60 is provided so as to overlap the non-fixed portions 51 and 56 in the width direction, the waist circumference expansion / contraction member 23 is moved in the vertical direction by the non-fixed portions 51 and 56 that are not fixed to the pair of seats 21 and 22. Prevents the tendency to shift in the (longitudinal direction). Further, when the diaper 1 is worn, it is possible to prevent the waistline portion 20 from floating from the wearer's skin in the area where the non-fixed portions 51 and 56 are located. Further, since the area of the portion where the waist circumference expansion / contraction member 23 of the waist circumference portion 20 is fixed to the pair of seats 21 and 22 does not increase (because the fixing portion 52 does not increase), the flexibility of the waist circumference portion 20 can be maintained.
  • 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 sheet 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 comfortable to wear. The decrease can be suppressed.
  • the sheet joint portion 60 of the third embodiment is not limited to the sheet shape shown in FIG.
  • the sheet joint portion 60 may be arranged intermittently in the width direction without continuously extending in the width direction.
  • the sheet joint portion 60 may be arranged only in a part between a plurality of waist circumference expansion / contraction members 23 arranged in the vertical direction.
  • the sheet joint portion 60 may be arranged inside the joint portion 40 in the width direction, or may be arranged inside the end fixing portion 50 in the width direction.
  • the sheet joint portion 60 may be formed by a plurality of openings formed by penetrating a pair of sheets 21 and 22 in the thickness direction.
  • the sheets 21 and 22 are joined to each other by fusing the edges of the openings. With such a plurality of openings, it is possible to suppress the vertical movement of the waist circumference expansion / contraction member 23 while improving the air permeability of the diaper 1.
  • the diaper 1 may have a pattern (not shown) that can be visually recognized from the non-skin side.
  • the non-skin side of the back sheet 13 of the absorbent body 10 or the back sheet 13 and the exterior sheet 14 A pattern may be applied to the non-skin side surface of a film or the like further provided between them.
  • the design is a pattern, a picture, a symbol, a character, or the like, and is not particularly limited. Then, it is desirable that such a symbol and the non-fixed portion 51 of the first continuous expansion / contraction member 231a have a portion where they overlap in the thickness direction.
  • the non-fixed portion 51 can suppress the shrinkage of the area where the pattern is applied, and can improve the aesthetics.
  • the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 have skin-side sheets 21, 31 and non-skin-side sheets 22, 32, respectively.
  • flexible sheets such as non-woven fabrics are used as the skin-side sheets 21, 31 and the non-skin-side sheets 22, 32
  • the sheet members constituting the skin-side sheets 21, 31 and the non-skin-side sheets 22, 32 are used.
  • the (nonwoven fabric) may have the following configuration.
  • the sheet member (nonwoven fabric) constituting the non-skin side sheets 22 and 32 may be more hydrophilic than the sheet member (nonwoven fabric) constituting the skin side sheets 21 and 31.
  • the skin-side sheets 21 and 31 may be made of a non-woven fabric having a low hydrophilicity
  • the non-skin-side sheets 22 and 32 may be made of a non-woven fabric having a higher hydrophilicity than the skin-side sheets 21 and 31.
  • the nonwoven fabrics constituting the skin-side sheets 21 and 31 are referred to as "hydrophobic nonwoven fabrics", and the nonwoven fabrics constituting the non-skin-side sheets 22 and 32 are referred to as "hydrophilic nonwoven fabrics”.
  • the hydrophilic non-woven fabric (22, 32) is laminated adjacent to the non-skin side of the hydrophobic non-woven fabric (21, 31).
  • the hydrophilic non-woven fabric and the hydrophobic non-woven fabric are not limited to be arranged in all the regions of the waist circumference portions 20 and 30, and at least a part of the regions may be configured as described above.
  • the hydrophilic non-woven fabric (22, 32) tends to contain water, when it is pressed against the body by the waist elastic members 23, 33 of the waist circumference portion 20 or 30, the absorbed water may return to the skin side. .. Therefore, in the diaper 1 of the present invention, a plurality of waistline elastic members 23, 33 (expandable members) arranged between the skin side sheets 21, 31 (hydrophobic non-woven fabric) and the non-skin side sheets 22, 32 (hydrophilic non-woven fabric). ) And the hydrophilic non-woven fabric (22, 32) have a portion that overlaps in the thickness direction. By overlapping with the non-fixed portion 51, the force of pressing against the body can be reduced, and the liquid return from the hydrophilic non-woven fabric side can be suppressed.
  • the "hydrophilicity" of the above-mentioned sheet member can be evaluated by measuring the contact angle when ion-exchanged water is brought into contact with the surface of the sheet member. Specifically, if the contact angle between the hydrophilic non-woven fabric and the ion-exchanged water is smaller than the contact angle between the hydrophobic non-woven fabric and the ion-exchanged water, the hydrophilicity of the hydrophilic non-woven fabric is more hydrophilic than that of the hydrophobic non-woven fabric. Will be higher than.
  • the contact angle with ion-exchanged water is preferably less than 90 °, more preferably 50 ° or less.
  • the contact angle with the ion-exchanged water is preferably 90 ° or more, and more preferably 120 ° or more.
  • the hydrophilic non-woven fabric include those in which the hydrophobic non-woven fabric is subjected to a treatment (hydrophilic treatment) to attach a predetermined oil agent to the hydrophobic non-woven fabric to increase the hydrophilicity.
  • the diaper 1 has a pair of sheets 21 (31), so as to overlap the pair of sheets 21 (31), 22 (32) in the thickness direction at least one of the pair of waist circumference portions 20, 30.
  • a sheet (not shown) different from that of 22 (32) may be provided.
  • the pair of sheets 21 (31) and 22 (32) and the sheets other than the pair of sheets 21 (31) and 22 (32) overlap each other in the thickness direction as described above.
  • the arranged portion is a laminated portion, it is desirable that the first continuous expansion / contraction member 231a is provided in the laminated portion.
  • At least one of the pair of sheets 21 (31) and 22 (32) (in the above-described embodiment, the non-skin side sheets 22 and 32) is the inner surface (skin side surface) of the waist circumference portions 20 and 30. ) Has a folded portion (see FIG. 3). Similar to the above-mentioned laminated portion, it is desirable that the first continuous expansion / contraction member 231a is provided in the folded portion. Since the number of laminated materials is large in the laminated portion and the folded portion, the rigidity can be ensured as compared with the case where only the pair of sheets 21 (31) and 22 (32) are used.
  • the first continuous expansion / contraction member 231a is located in such a highly rigid portion. (That is, by providing the non-fixed portion 51), it is possible to suppress the action of a force from the skin surface side, and it is possible to limit the vertical movement of the first continuous telescopic member 231a in the non-fixed portion 51. As a result, it is possible to reduce the occurrence of blistering in the diaper 1 itself and deterioration of the fit.
  • 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), but the present invention is not limited to this. It may have a first elastic group in which one continuous expansion / contraction member 231a is organized, and a second elastic group in which some second continuous expansion / contraction members 231b are organized. More specifically, one first elastic group (or one second elastic group) is formed by two to five first continuous expansion / contraction members 231a (second continuous expansion / contraction member 231b), and one first.
  • each of the first continuous expansion / contraction members 231a (second continuous expansion / contraction member 231b) in one elastic group (or one second elastic group) is arranged at intervals of 2 to 8 mm. Further, it is desirable that the width of one first elastic group (or second elastic group) is 15 mm or less. By doing so, in the first elastic group, the number of highly rigid portions is reduced, so that the flexibility can be further improved, and the second elastic group firmly moves the non-fixed portion 51 in the vertical direction. It is possible to suppress the occurrence of blisters and reduce the deterioration of fit.
  • Pants-type disposable diaper (absorbent article), 10 Absorbent body, 11 Absorbent, 11A Absorbent Core, 11B Core Wrap Sheet, 12 top seats, 13 back seats, 14 Exterior sheet, 20 Ventral girth (girth), 30 Dorsal girth (girth), 21,31 Skin side sheet (sheet), 22, 32 Non-skin side sheet (sheet), 23,33 Girth elastic member, 231 Continuous telescopic member (expandable member), 232 discontinuous telescopic member, 231a 1st continuous telescopic member (1st telescopic member), 231b, 331b Second continuous expansion / contraction member (second expansion / contraction member), 231a1 to 231a3 1st continuous expansion / contraction member (1st expansion / contraction member) 231b1 to 231b3 Second continuous expansion / contraction member (second expansion / contraction member), 40 joints, 50, 55 end fixing part, 55'fixed part, 51,56 non-fixed part, 52 Fixed part, 53 Overlapping fixing part, 53a to 53f

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 (1) qui comprend une paire de parties de taille (20, 30) et un corps absorbant (10) : chaque partie de taille (20) comprenant une paire de feuilles (21, 22) et une pluralité d'éléments élastiques (23) ; chaque élément élastique (23) étant situé en continu depuis une extrémité vers l'autre extrémité de la partie de taille (20) dans la direction de la largeur, et ayant une partie fixe terminale (50) 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 (50) dans la direction de la largeur, et un deuxième 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 longueur de la partie non fixe (51) est plus courte que la longueur du corps absorbant (10) dans la direction de la largeur.
PCT/JP2021/011389 2020-12-14 2021-03-19 Article absorbant WO2022130653A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202180082267.8A CN116615165A (zh) 2020-12-14 2021-03-19 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020206873A JP6878671B1 (ja) 2020-12-14 2020-12-14 吸収性物品
JP2020-206873 2020-12-14

Publications (1)

Publication Number Publication Date
WO2022130653A1 true WO2022130653A1 (fr) 2022-06-23

Family

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PCT/JP2021/011389 WO2022130653A1 (fr) 2020-12-14 2021-03-19 Article absorbant

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Country Link
JP (1) JP6878671B1 (fr)
CN (1) CN116615165A (fr)
WO (1) WO2022130653A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022030432A1 (fr) * 2020-08-06 2022-02-10 花王株式会社 Couche jetable de type culotte
JP7064035B2 (ja) * 2020-08-06 2022-05-09 花王株式会社 パンツ型使い捨ておむつ

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137607U (fr) * 1985-02-14 1986-08-27
JP2011067379A (ja) * 2009-09-25 2011-04-07 Livedo Corporation シート部材およびシート部材の製造方法
US20110118689A1 (en) * 2007-11-19 2011-05-19 Sca Hygiene Products Ab Absorbent article comprising one or several patterns
JP2015109900A (ja) * 2013-12-06 2015-06-18 大王製紙株式会社 吸収性物品の伸縮構造、及び吸収性物品
JP2020151253A (ja) * 2019-03-20 2020-09-24 ユニ・チャーム株式会社 吸収性物品
JP2020151257A (ja) * 2019-03-20 2020-09-24 ユニ・チャーム株式会社 吸収性物品

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4160807B2 (ja) * 2002-08-30 2008-10-08 ユニ・チャーム株式会社 パンツ型の使い捨て着用物品
JP6211777B2 (ja) * 2013-03-18 2017-10-11 株式会社リブドゥコーポレーション 吸収性物品
EA036327B1 (ru) * 2017-10-12 2020-10-27 Юничарм Корпорейшн Впитывающее изделие

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137607U (fr) * 1985-02-14 1986-08-27
US20110118689A1 (en) * 2007-11-19 2011-05-19 Sca Hygiene Products Ab Absorbent article comprising one or several patterns
JP2011067379A (ja) * 2009-09-25 2011-04-07 Livedo Corporation シート部材およびシート部材の製造方法
JP2015109900A (ja) * 2013-12-06 2015-06-18 大王製紙株式会社 吸収性物品の伸縮構造、及び吸収性物品
JP2020151253A (ja) * 2019-03-20 2020-09-24 ユニ・チャーム株式会社 吸収性物品
JP2020151257A (ja) * 2019-03-20 2020-09-24 ユニ・チャーム株式会社 吸収性物品

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JP6878671B1 (ja) 2021-06-02
CN116615165A (zh) 2023-08-18

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