WO2016152784A1 - パンツタイプ使い捨ておむつ - Google Patents

パンツタイプ使い捨ておむつ Download PDF

Info

Publication number
WO2016152784A1
WO2016152784A1 PCT/JP2016/058718 JP2016058718W WO2016152784A1 WO 2016152784 A1 WO2016152784 A1 WO 2016152784A1 JP 2016058718 W JP2016058718 W JP 2016058718W WO 2016152784 A1 WO2016152784 A1 WO 2016152784A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet layer
exterior body
elastic
sheet
stretchable region
Prior art date
Application number
PCT/JP2016/058718
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
陽平 大野
Original Assignee
大王製紙株式会社
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 大王製紙株式会社 filed Critical 大王製紙株式会社
Publication of WO2016152784A1 publication Critical patent/WO2016152784A1/ja

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch 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
    • A61F13/51—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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/15121—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for mild incontinence
    • 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
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/1513—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for anal discharge
    • 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
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/15146—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for urine collection
    • 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
    • A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
    • A61F2013/49092—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening comprising leg cuffs

Definitions

  • the present invention relates to a pants-type disposable diaper provided with a display sheet on which a design or the like is printed.
  • the pants-type disposable diaper includes an exterior body that individually or integrally forms a front body and a back body, and an interior body that includes an absorbent body that is attached to the inner surface of the exterior body so as to extend from the front body to the back body.
  • a waist opening and a pair of left and right leg openings are formed by joining the side edge portions of the outer body of the front body and the side edges of the outer body of the rear body to form a side seal portion. Is common.
  • the exterior body in order to improve fit to the body, has a laminated structure having a plurality of sheet layers, and various elastic elastic members are attached in an expanded state between the sheet layers.
  • various elastic elastic members are attached in an expanded state between the sheet layers.
  • elongated elastic expansion / contraction members along the width direction are arranged in the front / rear direction in the waist area corresponding to the side seal portion and the middle area located between the front and rear waist areas.
  • What is attached in a state of being extended in the width direction at intervals in the direction has a relatively high fit to the body (for example, see Patent Document 1).
  • the waistline region and the intermediate region overlap the front-rear direction range having the absorber, and there are inner and outer fixing portions for fixing the inner body to the outer body in the range. Therefore, even if an elastic elastic member is provided so as to cross the range in the front-rear direction having the absorber, its expansion / contraction function is limited by the rigidity of the absorber.
  • the absorbent body may contract in the width direction, thereby deteriorating the wearing feeling and appearance, and the absorbent body may be twisted or cracked, resulting in a decrease in absorption performance.
  • the elastic elastic member is continuously attached along the width direction, and almost the entire portion overlapping the absorber is finely cut, or the elastic elastic member is attached to the exterior body at the portion overlapping the absorber. It is generally employed to form a non-stretchable region where a contraction force in the width direction does not act on the absorbent body by making it non-fixed and cutting at one place in the middle in the width direction.
  • the exterior body in the non-stretchable region is hardly affected by the contraction force of the elastic stretch member and hardly forms shrinkage wrinkles. Therefore, the display sheet which attached the pattern etc. was interposed between the exterior body and interior body in this part (refer patent document 1) and the sheet
  • the display sheet Since the display sheet is visually recognized through the constituent material of the exterior body, the display sheet is provided with the elastic elastic member of the exterior body and the outside thereof, as described in Patent Document 2 in that the display can be visually recognized more clearly. It is desirable to interpose between the sheet layers. In this case, since the display sheet and the elastic expansion / contraction member are adjacent to each other, in order to completely eliminate the influence of the contraction force of the elastic expansion / contraction member, the display sheet and the inner sheet layer are elastic. It is desirable to have a display sheet back non-fixed structure in which the elastic member is not fixed.
  • Such a display sheet back non-fixed structure is not an exterior body continuous structure in which the exterior body is continuous from the front body to the back body as in Patent Documents 1 and 2, and the front exterior body that is separated in the front-rear direction and
  • an exterior body dividing structure having a rear exterior body when the display sheet is extended to the crotch side end of the exterior body in order to enlarge the display, the sheet layer inside the display sheet and the elastic elastic member And the crotch side opens, and not only the appearance deteriorates, but also the sheet layer of the exterior body may be peeled off.
  • the elastic elastic member cut in order to kill the elasticity as described above may protrude from the opening, or fragments of the elastic elastic member may come out of the opening. There is also.
  • JP 2012-1000069 A Japanese Patent Laid-Open No. 2004-254861 JP 2010-158590 A
  • a main problem of the present invention is to provide a pants-type disposable diaper having an exterior body division structure in which an opening at the crotch side in the exterior body is prevented while the display on the display sheet is clearly visible.
  • the front exterior body and the rear exterior body are spaced apart in the front-rear direction, At least one of the front exterior body and the rear exterior body includes a non-stretchable region provided in the middle in the width direction in the front-rear direction range having the absorber, and a stretchable region provided on both sides in the width direction of the non-stretchable region.
  • the stretchable region includes an inner sheet layer, an outer sheet layer, and a plurality of elongated sheets attached in an extended state along the width direction at intervals in the front-rear direction between the inner sheet layer and the outer sheet layer.
  • the non-stretchable region includes an inner sheet layer and an outer sheet layer that are continuous from the stretchable region, a remaining cutting portion that is left between the inner sheet layer and the outer sheet layer, and that is continuous from the elastic stretchable member of the stretchable region, and both.
  • An elastic elastic member in the elastic region and an unnecessary elastic elastic member made of at least one of the cut pieces of the elastic elastic member which is not continuous.
  • the non-stretchable region is provided with a display sheet visible from the outer surface, In pants-type disposable diapers;
  • the display sheet is provided adjacent to the inside of the outer sheet layer in the non-stretchable region,
  • the unnecessary elastic elastic member is non-fixed to the inner surface of the display sheet and the outer surface of the inner sheet layer, Of the front exterior body and the rear exterior body, the exterior body having the display sheet is such that the sheet material forming one of the inner sheet layer and the outer sheet layer is folded back behind the other at the crotch side edge. Crotch side folded portion fixed by A pants-type disposable diaper characterized by that.
  • the display sheet is provided adjacent to the inside of the outer sheet layer in the non-stretchable region, the display on the display sheet can be clearly seen.
  • the unnecessary elastic elastic member has a display sheet back non-fixed structure in which the unnecessary elastic elastic member is not fixed to the inner surface of the display sheet and the outer surface of the inner sheet layer, the influence of the shrinkage force of the unnecessary elastic elastic member on the display sheet is affected. It can be completely eliminated.
  • the exterior body having the display sheet has a crotch portion in which the sheet material forming one of the inner sheet layer and the outer sheet layer is folded and fixed behind the other at the crotch side edge. It has a side turn part.
  • the gap between the display sheet and the inner sheet layer is closed by the sheet material at the end portion on the crotch side, the exterior body having the display sheet is reliably prevented from opening to the crotch side.
  • the gap between the display sheet and the inner sheet layer opens to the crotch side, the appearance is deteriorated, the sheet layer of the exterior body is peeled off, or the elastic elastic member cut to kill the elasticity is opened from the opening. It is also possible to reliably prevent the protrusion or the elastic elastic member fragments from coming out of the opening.
  • the exterior body having the display sheet individually includes a sheet material that forms the inner sheet layer and a sheet material that forms the outer sheet layer, and the outer sheet layer is formed at the crotch side folded portion.
  • the front exterior body and the rear exterior body are spaced apart in the front-rear direction, At least one of the front exterior body and the rear exterior body includes a non-stretchable region provided in the middle in the width direction in the front-rear direction range having the absorber, and a stretchable region provided on both sides in the width direction of the non-stretchable region.
  • the stretchable region includes an inner sheet layer, an outer sheet layer, and a plurality of elongated sheets attached in an extended state along the width direction at intervals in the front-rear direction between the inner sheet layer and the outer sheet layer.
  • the non-stretchable region includes an inner sheet layer and an outer sheet layer that are continuous from the stretchable region, a remaining cutting portion that is left between the inner sheet layer and the outer sheet layer, and that is continuous from the elastic stretchable member of the stretchable region, and both.
  • An elastic elastic member in the elastic region and an unnecessary elastic elastic member made of at least one of the cut pieces of the elastic elastic member which is not continuous.
  • the non-stretchable region is provided with a display sheet visible from the outer surface, In pants-type disposable diapers;
  • the display sheet is provided adjacent to the inside of the outer sheet layer in the non-stretchable region,
  • the unnecessary elastic elastic member is non-fixed to the inner surface of the display sheet and the outer surface of the inner sheet layer,
  • the exterior body having the display sheet is folded by an edge on the crotch side to form a crotch side folded portion, and is formed by an inner portion and an outer portion of one sheet material.
  • Each of the inner sheet layer and the outer sheet layer is formed, A pants-type disposable diaper characterized by that.
  • the display sheet is provided adjacent to the inside of the outer sheet layer in the non-stretchable region, the display on the display sheet can be clearly seen.
  • the unnecessary elastic elastic member has a display sheet back non-fixed structure in which the unnecessary elastic elastic member is not fixed to the inner surface of the display sheet and the outer surface of the inner sheet layer, the influence of the shrinkage force of the unnecessary elastic elastic member on the display sheet is affected. It can be completely eliminated.
  • the exterior body having the display sheet has the inner sheet layer and the outer portion formed by an inner portion and an outer portion of one sheet material that is folded at the crotch side edge to form a crotch side folded portion. Sheet layers are respectively formed.
  • the gap between the display sheet and the inner sheet layer is closed by the sheet material at the end portion on the crotch side, the exterior body having the display sheet is reliably prevented from opening to the crotch side.
  • the gap between the display sheet and the inner sheet layer opens to the crotch side, the appearance is deteriorated, the sheet layer of the exterior body is peeled off, or the elastic elastic member cut to kill the elasticity is opened from the opening. It is also possible to reliably prevent the protrusion or the elastic elastic member fragments from coming out of the opening.
  • the front exterior body and the rear exterior body are spaced apart in the front-rear direction, At least one of the front exterior body and the rear exterior body includes a non-stretchable region provided in the middle in the width direction in the front-rear direction range having the absorber, and a stretchable region provided on both sides in the width direction of the non-stretchable region.
  • the stretchable region includes an inner sheet layer, an outer sheet layer, and a plurality of elongated sheets attached in an extended state along the width direction at intervals in the front-rear direction between the inner sheet layer and the outer sheet layer.
  • the non-stretchable region includes an inner sheet layer and an outer sheet layer that are continuous from the stretchable region, a remaining cutting portion that is left between the inner sheet layer and the outer sheet layer, and that is continuous from the elastic stretchable member of the stretchable region, and both.
  • An elastic elastic member in the elastic region and an unnecessary elastic elastic member made of at least one of the cut pieces of the elastic elastic member which is not continuous.
  • the non-stretchable region is provided with a display sheet visible from the outer surface, In pants-type disposable diapers;
  • the display sheet is provided adjacent to the inside of the outer sheet layer in the non-stretchable region,
  • the unnecessary elastic elastic member is non-fixed to the inner surface of the display sheet and the outer surface of the inner sheet layer,
  • the exterior body having the display sheet is such that both the sheet material forming the inner sheet layer and the sheet material forming the outer sheet layer are inside or outside at the crotch end. Having a crotch side folded portion that is folded and fixed to A pants-type disposable diaper characterized by that.
  • the display sheet is provided adjacent to the inside of the outer sheet layer in the non-stretchable region, the display on the display sheet can be clearly seen.
  • the unnecessary elastic elastic member has a display sheet back non-fixed structure in which the unnecessary elastic elastic member is not fixed to the inner surface of the display sheet and the outer surface of the inner sheet layer, the influence of the shrinkage force of the unnecessary elastic elastic member on the display sheet is affected. It can be completely eliminated.
  • the exterior body having the display sheet is fixed by folding both the sheet material forming the inner sheet layer and the sheet material forming the outer sheet layer inwardly or outwardly at the crotch end. The crotch side has a folded portion.
  • the gap between the display sheet and the inner sheet layer is closed by the sheet material at the end portion on the crotch side, the exterior body having the display sheet is reliably prevented from opening to the crotch side.
  • the gap between the display sheet and the inner sheet layer opens to the crotch side, the appearance is deteriorated, the sheet layer of the exterior body is peeled off, or the elastic elastic member cut to kill the elasticity is opened from the opening. It is also possible to reliably prevent the protrusion or the elastic elastic member fragments from coming out of the opening.
  • the present invention is suitable for such a form.
  • Such a form becomes possible by cutting the elastic stretchable member for forming the non-stretchable region only at one place in the width direction of the non-stretchable region.
  • the cutting trace (melting trace and pressurization trace) of the sheet layer is reduced, and it is possible to prevent the display sheet from being difficult to see due to the overlap of the cutting traces.
  • the present invention is suitable for such a form.
  • Such a form becomes possible by cutting the elastic stretchable member for forming the non-stretchable region at a portion other than the center in the width direction of the non-stretchable region.
  • the cutting trace melting trace or pressure trace
  • the position of the cutting trace is other than the center, so that it is effective to make it difficult to see the display sheet display due to overlapping cutting traces, etc.
  • the unnecessary elastic elastic member on one side in the width direction remains particularly long, if the gap between the display sheet and the inner sheet layer opens to the crotch side, it tends to protrude from the opening. Therefore, the present invention is suitable for such a form.
  • a pants-type disposable diaper with an exterior body division structure that prevents the opening of the crotch end in the exterior body while making the display of the display sheet clearly visible. Is brought about.
  • FIG. 3 is a cross-sectional view taken along the line 3-3 in FIG. 1.
  • FIG. 4 is a sectional view taken along line 4-4 of FIG. (A) 5-5 sectional view of FIG. 1, (b) 6-6 sectional view of FIG. It is a perspective view of a pants type disposable diaper.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1.
  • FIG. 5 is a cross-sectional view corresponding to the 5-5 cross section of FIG. 1. It is a perspective view of a cutting device. It is an enlarged plan view of a display sheet portion.
  • FIG. 1 to 6 show an example 100 of a pants-type disposable diaper.
  • the dotted pattern in the cross-sectional view shows an adhesive as a joining means for joining the constituent members located on the front side and the back side, and is a solid, bead, curtain, summit or spiral coating of hot melt adhesive, or pattern coating (Transfer of hot melt adhesive in a relief printing system) or the like, or the fixed portion of the elastic stretchable member is formed by application to the outer peripheral surface of an elastic stretchable member such as a comb gun or a shroud coating instead of or together with this Is.
  • an elastic stretchable member such as a comb gun or a shroud coating instead of or together with this Is.
  • hot melt adhesives examples include EVA, adhesive rubber (elastomer), olefin, and polyester / polyamide types, which can be used without any particular limitation.
  • a joining means for joining the constituent members means by material welding such as heat sealing or ultrasonic sealing can be used.
  • the pants-type disposable diaper 100 of the present embodiment extends from the front exterior body 12F constituting the front body F and the rear exterior body 12B constituting the rear body B and from the front exterior body 12F to the rear exterior body 12B through the crotch part.
  • the exterior body 12F and 12B are provided inside the exterior body 12F, and both side portions of the front exterior body 12F and both side portions of the rear exterior body 12B are joined to form the side seal portion 12A.
  • the opening formed by the front and rear end portions of the exterior bodies 12F and 12B becomes a waist opening WO through which the wearer's torso passes, and the lower edge of the exterior bodies 12F and 12B and the interior are formed on both sides in the width direction of the interior body 200.
  • the portions surrounded by the side edges of the body 200 are leg openings LO through which the legs pass.
  • the interior body 200 is a part that absorbs and holds excrement such as urine
  • the exterior body 12 is a part that supports the interior body 200 with respect to the wearer's body.
  • the symbol Y indicates the total length of the diaper in the deployed state (the length in the front-rear direction from the edge of the waist opening WO of the front body F to the edge of the waist opening WO of the back body B), and the symbol X indicates the diaper in the deployed state. The full width of is shown.
  • the pants-type disposable diaper 100 of this embodiment forms a waist region T defined as a front-rear direction range (a front-rear direction range extending from the waist opening WO to the upper end of the leg opening LO) having the side seal portion 12A, and a leg opening LO.
  • an intermediate region L defined as a front-rear direction range between the front-rear region having the side seal portion 12A of the front body F and the front-rear region having the side seal portion 12A of the rear body B).
  • the waistline region T can be divided into a “waist portion” W that conceptually forms the edge of the waist opening and a “waist lower portion” U that is a lower portion than this.
  • the waist opening WO side is closer to the waist opening than the boundary on the waist opening WO side.
  • the waist opening WO side becomes the waist portion W with respect to the absorbent body 56 or the interior body 200.
  • the length in the front-rear direction varies depending on the size of the product and can be determined as appropriate.
  • the waist portion W can be 15 to 40 mm and the waist lower portion U can be 65 to 120 mm.
  • both side edges of the intermediate region L are wrapped in a U-shape or a curved shape along the circumference of the leg of the wearer, and this is a portion into which the wearer's leg is put.
  • the unfolded pants-type disposable diaper has a substantially hourglass shape as a whole.
  • the interior body 200 can take any shape, but is rectangular in the illustrated form. As shown in FIGS. 3 to 5, the interior body 200 includes a top sheet 30 on the body side, a liquid-impermeable sheet 11, and an absorbent element 50 interposed therebetween. Yes, it is the main body that takes up the absorption function.
  • Reference numeral 40 denotes an intermediate sheet (second sheet) provided between the top sheet 30 and the absorbent element 50 in order to quickly transfer the liquid that has passed through the top sheet 30 to the absorbent element 50. Shows a three-dimensional gather 60 that stands on the body side and is provided on both sides of the interior body 200 in order to prevent excrement from leaking to both sides of the interior body 200.
  • the interior body 200 can be fixed to the exterior bodies 12F and 12B by a joining means by material welding such as heat sealing or ultrasonic sealing, or a hot melt adhesive.
  • the inner surface 200 is fixed to the inner surface of the exterior body 12 by a hot melt adhesive applied to the rear surface of the interior body 200, that is, in this case, the back surface of the liquid-impermeable sheet 11 and the attachment portion 65 of the three-dimensional gather 60.
  • the inner and outer fixing portions 201 for fixing the inner body 200 and the outer bodies 12F and 12B can be provided in almost the entire region where both overlap, and are usually provided in a portion excluding both ends in the width direction of the inner body. preferable.
  • the top sheet 30 has a property of allowing liquid to pass through, and examples thereof include a porous or non-porous nonwoven fabric, a porous plastic sheet, and the like.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing.
  • processing method examples include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • spunlace method a spunlace method
  • thermal bond method a melt blown method
  • melt blown method a melt blown method
  • needle punch method an air through method
  • point bond method a point bond method.
  • the spunbond method and spunlace method are preferable.
  • the air-through method, point bond method, and thermal bond method are preferable processing methods. .
  • the top sheet 30 may be composed of one sheet or may be composed of a laminated sheet obtained by bonding two or more sheets. Similarly, the top sheet 30 may be composed of one sheet or two or more sheets in the planar direction.
  • both sides of the top sheet 30 pass between the liquid-impermeable sheet 11 and the three-dimensional gather 60 to reach the back side of the absorbent element 50, in order to prevent liquid penetration. It is preferable to join to the permeable sheet 11 and the three-dimensional gather 60.
  • the top sheet 30 is preferably fixed to a member adjacent to the back side by a joining means by material welding such as heat sealing or ultrasonic sealing, or a hot melt adhesive.
  • a joining means such as heat sealing or ultrasonic sealing, or a hot melt adhesive.
  • the top sheet 30 is fixed to the surface of the intermediate sheet 40 and the surface of the packaging sheet 58 on the front side of the absorbent body 56 by a hot melt adhesive applied to the back surface thereof.
  • An intermediate sheet (also referred to as “second sheet”) 40 having a higher liquid permeation rate than the top sheet 30 can be provided in order to quickly transfer the liquid that has permeated through the top sheet 30 to the absorber.
  • This intermediate sheet 40 not only improves the absorption performance by the absorbent by quickly transferring the liquid to the absorbent body, but also prevents the “reversed” phenomenon of the absorbed liquid from the absorbent body, so that the top sheet 30 is always dried. It can be made into the state which carried out.
  • the intermediate sheet 40 can be omitted.
  • the intermediate sheet 40 examples include the same materials as the top sheet 30, spunlace, spunbond, SMS, pulp nonwoven fabric, mixed sheet of pulp and rayon, point bond, or crepe paper.
  • an air-through nonwoven fabric is preferable because it is bulky.
  • the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable.
  • Basis weight is preferably 20 ⁇ 80g / m 2, more preferably 25 ⁇ 60g / m 2.
  • the thickness of the raw fiber of the nonwoven fabric is preferably 2.0 to 10 dtex.
  • the intermediate sheet 40 in the illustrated form is arranged in the center shorter than the width of the absorbent body 56, but may be provided over the entire width.
  • the length of the intermediate sheet 40 in the longitudinal direction may be the same as the length of the absorbent body 56 or may be within a short length range centered on the region that receives the liquid.
  • the intermediate sheet 40 is preferably fixed to a member adjacent to the back side by a joining means by material welding such as heat sealing or ultrasonic sealing, or a hot melt adhesive for the purpose of preventing positional displacement with respect to the back side member.
  • the intermediate sheet 40 is fixed to the surface of the portion of the packaging sheet 58 located on the front side of the absorbent body 56 with a hot melt adhesive applied to the back surface thereof.
  • the material of the liquid-impermeable sheet 11 is not particularly limited.
  • a plastic film made of an olefin resin such as polyethylene or polypropylene, a laminated nonwoven fabric provided with a plastic film on the surface of the nonwoven fabric, or a plastic film For example, a laminated sheet in which a nonwoven fabric or the like is laminated and bonded to each other can be exemplified.
  • a liquid-impervious and moisture-permeable material that is preferably used from the viewpoint of preventing stuffiness.
  • a microporous plastic film obtained by kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, forming a sheet, and then stretching in a uniaxial or biaxial direction.
  • an olefin resin such as polyethylene or polypropylene
  • non-woven fabric using microdenier fiber enhancement of leakproofness by reducing the voids of the fiber by applying heat or pressure, application of superabsorbent resin or hydrophobic resin or water repellent
  • a sheet that is liquid-impermeable without using a plastic film can also be used as the liquid-impermeable sheet 11.
  • the liquid-impermeable sheet 11 has a width that can be accommodated on the back side of the absorbent element 50 as shown in the drawing, and in order to improve leakage prevention, the liquid-impermeable sheet 11 wraps around both sides of the absorbent element 50 to form the side surface of the top sheet 30 of the absorbent element 50. It can also extend to both sides.
  • the width of this extended portion is suitably about 5 to 20 mm on the left and right.
  • an excretion indicator whose color is changed by absorption of the liquid component can be provided on the inner side of the liquid-impermeable sheet 11, particularly on the side of the absorber 56.
  • the three-dimensional gather 60 is a belt-like member that extends over the entire front-rear direction along both side portions of the interior body 200, blocks excrement that travels in the lateral direction along the top sheet 30, and prevents side leakage. Is provided.
  • the three-dimensional gather 60 of the present embodiment is provided so as to stand up from the side portion of the interior body 200, the base side portion rises obliquely toward the center in the width direction, and the tip side portion from the intermediate portion has a width. It stands up diagonally outward in the direction.
  • the three-dimensional gather 60 folds the belt-shaped gather sheet 62 having a length equal to the length in the front-rear direction of the interior body 200 in the width direction and folds it into two.
  • a plurality of elongated gather elastic elastic members 63 are fixed along the longitudinal direction at intervals in the width direction.
  • a base end portion (an end portion on the side opposite to the sheet folding portion in the width direction) located on the opposite side to the front end portion of the three-dimensional gather 60 is an attachment portion 65 fixed to the back surface of the side edge portion of the interior body 200.
  • a portion other than the attachment portion 65 is a protruding portion 66 (a portion on the folded portion side) protruding from the attachment portion 65.
  • the projecting portion 66 includes a base side portion that extends toward the center in the width direction, and a tip side portion that is folded back outward in the width direction from the tip of the base side portion.
  • This form is a surface contact type three-dimensional gather, but a line contact type three-dimensional gather (not shown) that is not folded outward in the width direction can also be employed.
  • the both ends of the front-back direction among the protrusion parts 66 are used as the front-back fixing
  • a gathering elastic member 63 extending in the front-rear direction is fixed to the free part 68 in an extended state.
  • hot melt adhesives and heat seals and super seals by various coating methods are used to bond the inner layer and the outer layer of the gather sheet 62 and to fix the gather elastic elastic member 63 sandwiched therebetween.
  • At least one of fixing means by material welding such as a sonic seal can be used. Since the flexibility is lost when the entire inner layer and outer layer of the gather sheet 62 are bonded together, it is preferable that the portions other than the bonding portion of the gather elastic elastic member 63 are not bonded or weakly bonded.
  • a hot melt adhesive is applied only to the outer peripheral surface of the gather elastic stretchable member 63 by an application means such as a comb gun or a sure wrap nozzle, and is sandwiched between the inner layer and the outer layer of the gather sheet 62, thereby collecting the gather elastic stretch.
  • an application means such as a comb gun or a sure wrap nozzle
  • hot melt adhesives and heat seals by various application methods are used for fixing the waterproof film 64 and the gather sheet 62 incorporated in the three-dimensional gather 60 and fixing the front and rear fixing portion 67 to the side surface of the interior body 200.
  • at least one of means by material welding such as ultrasonic sealing can be used.
  • slot application of hot melt adhesive is used for fixing the waterproof film 64.
  • the front and rear fixing portion 67 is fixed by combining hot melt adhesive and material welding means, but these can be fixed only by any one of the means.
  • the gather sheet 62 is made of a spunbond nonwoven fabric (SS, SSS, etc.), SMS nonwoven fabric (SMS, SSMMS, etc.), a melt-blown nonwoven fabric with excellent uniformity and concealment, and water repellent with silicon as necessary.
  • a treated product can be suitably used, and the fiber basis weight is preferably about 10 to 30 g / m 2 .
  • the elongated elastic elastic member 63 rubber thread or the like can be used. When spandex yarn rubber is used, the thickness is preferably 470 to 1240 dtex, more preferably 620 to 940 dtex.
  • the elongation at the time of fixation is preferably 150 to 350%, more preferably 200 to 300%.
  • the term “elongation rate” means a value when the natural length is 100%.
  • a waterproof film 64 can be interposed between the gather sheets folded in two.
  • the number of the elongated elastic elastic members 63 provided in the free part of the three-dimensional gather 60 is preferably 2 to 6, and more preferably 3 to 5.
  • the arrangement interval 60d is suitably 3 to 10 mm. If comprised in this way, in the range which has arrange
  • the elongated elastic elastic member 63 may be disposed not only at the distal end side but also at the base side.
  • the fixing target of the attachment portion 65 of the three-dimensional gather 60 can be an appropriate member such as the top sheet 30, the liquid-impermeable sheet 11, and the absorbent element 50 in the interior body 200.
  • the contraction force of the elongated elastic elastic member 63 acts so that both ends in the front-rear direction are brought close to each other, but the both ends in the front-rear direction of the protruding portion 66 are fixed so as not to stand up.
  • the free portions stand up against the body side as shown in FIG.
  • the attachment portion 65 is positioned on the back surface side of the interior body 200, the three-dimensional gather 60 stands up so as to open outward in the width direction at the crotch portion and in the vicinity thereof. It comes in contact, and the fit is improved.
  • the dimensions of the three-dimensional gather 60 can be determined as appropriate, but in the case of an infant paper diaper, for example, as shown in FIG. 3, the standing height of the three-dimensional gather 60 (the length in the width direction of the protruding portion 66 in the unfolded state) W6 is It is preferably 15 to 60 mm, particularly 20 to 40 mm.
  • the separation distance W3 between the folds located on the innermost side is preferably 60 to 190 mm, particularly preferably 70 to 140 mm.
  • double (two rows) of three-dimensional gathers can be provided on the left and right sides of the interior body 200.
  • the absorbent element 50 includes an absorbent body 56 and a packaging sheet 58 that wraps the entire absorbent body 56.
  • the packaging sheet 58 can be omitted.
  • the absorber 56 can be formed of an aggregate of fibers.
  • This fiber assembly a filament assembly obtained by opening, as necessary, synthetic fiber tows (fiber bundles) such as cellulose acetate as well as short fibers such as cotton-like pulp and synthetic fibers Can also be used.
  • the fiber basis weight can be, for example, about 100 to 300 g / m 2 when stacking cotton-like pulp or short fibers, and about 30 to 120 g / m 2 for filament aggregates, for example. Can do.
  • the fineness in the case of synthetic fibers is, for example, 1 to 16 dtex, preferably 1 to 10 dtex, and more preferably 1 to 5 dtex.
  • the filament may be a non-crimped fiber, but is preferably a crimped fiber.
  • the crimped degree of the crimped fiber can be, for example, about 5 to 75, preferably 10 to 50, and more preferably about 15 to 50 per inch. Further, a crimped fiber that is uniformly crimped is often used. It is preferable to disperse and hold superabsorbent polymer particles in the absorber 56.
  • the absorber 56 may have a rectangular shape, but as shown in FIGS. 1 and 2, the front end portion, the rear end portion, and a constricted portion having a narrower width than the front end portion and the rear end portion are located between them. It is preferable to form an hourglass shape having the shape because the fit of the absorbent body 56 and the three-dimensional gather 60 around the legs is improved.
  • the size of the absorbent body 56 can be appropriately determined as long as it extends across the front, rear, left and right of the urination port position, but it preferably extends to the periphery of the interior body or the vicinity thereof in the front-rear direction and the width direction.
  • Reference numeral 56X indicates the width of the absorber 56.
  • the absorber 56 can contain superabsorbent polymer particles in a part or all thereof.
  • Superabsorbent polymer particles include “powder” in addition to “particles”.
  • the superabsorbent polymer particles 54 those used in this type of disposable diaper can be used as they are, for example, by sieving (shaking for 5 minutes) using a 500 ⁇ m standard sieve (JIS Z8801-1: 2006).
  • the ratio of the particles remaining on the top is preferably 30% by weight or less, and the ratio of the particles remaining on the screen by sieving (shaking for 5 minutes) using a standard sieve of 180 ⁇ m (JIS Z8801-1: 2006) 60% by weight or more is desirable.
  • the material of the superabsorbent polymer particles can be used without any particular limitation, but those having a water absorption of 40 g / g or more are suitable.
  • Superabsorbent polymer particles include starch, cellulose and synthetic polymers, such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and sodium carboxymethylcellulose cross-link. Or an acrylic acid (salt) polymer can be used.
  • As the shape of the superabsorbent polymer particles a commonly used granular material is suitable, but other shapes can also be used.
  • the superabsorbent polymer particles those having a water absorption rate of 70 seconds or less, particularly 40 seconds or less are preferably used. If the water absorption speed is too slow, the liquid supplied into the absorber 56 is likely to cause a so-called reverse return that returns to the outside of the absorber 56.
  • the superabsorbent polymer particles those having a gel strength of 1000 Pa or more are preferably used. Thereby, even if it is a case where it is set as the bulky absorber 56, the sticky feeling after liquid absorption can be suppressed effectively.
  • the basis weight of the superabsorbent polymer particles can be appropriately determined according to the amount of absorption required for the use of the absorber 56. Therefore, although it cannot be generally stated, it can be 50 to 350 g / m 2 . If the amount of polymer is less than 50 g / m 2, it is difficult to secure the absorption amount. When it exceeds 350 g / m 2 , the effect is saturated.
  • the superabsorbent polymer particles can adjust the spray density or spray amount in the plane direction of the absorber 56. For example, it is possible to increase the amount of the liquid excretion site more than other sites.
  • men can increase the front spray density (amount), while women can increase the center spray density (amount).
  • a portion where no polymer exists locally (for example, in a spot shape) in the planar direction of the absorber 56 can also be provided.
  • tissue paper particularly crepe paper, non-woven fabric, polylaminated non-woven fabric, a sheet with small holes, or the like can be used.
  • the superabsorbent polymer particles be a sheet that does not escape.
  • a nonwoven fabric is used in place of the crepe paper, a hydrophilic SMS nonwoven fabric (SMS, SSMMS, etc.) is particularly suitable, and the material can be polypropylene, polyethylene / polypropylene composite material, or the like.
  • the basis weight is preferably 5 to 40 g / m 2 , particularly 10 to 30 g / m 2 .
  • the packaging form of the packaging sheet 58 can be determined as appropriate, but from the viewpoint of ease of manufacture and prevention of leakage of the superabsorbent polymer particles from the front and rear end edges, the cylinder is formed so as to surround the front and back surfaces and both side surfaces of the absorbent body 56. It is preferable that the front and rear edge portions protrude from the front and rear of the absorbent body 56, and the overlapping portion and the overlapping portion of the front and rear protruding portions are joined by a joining means such as hot melt adhesive or material welding.
  • the exterior bodies 12F and 12B include a front exterior body 12F that is a part constituting the front body F and a rear exterior body 12B that is a part constituting the rear body B.
  • the front exterior body 12F and the rear exterior body 12B Are not continuous on the crotch side and are separated in the front-rear direction. This separation distance 12d can be about 150 to 250 mm.
  • a part of the exposed portion of the back surface of the interior body 200 in the separated portion (for example, the entire portion in the front-rear direction of the portion exposed between the front exterior body 12F and the rear exterior body 12B, but does not extend to the front and rear ends of the interior body 200.
  • the crotch portion cover sheet 12M made of a nonwoven fabric or the like is attached so as to cover the entire side of the interior body 200 so that both side edges in the width direction do not reach the both side edges of the interior body 200, but may be omitted.
  • the exterior bodies 12F and 12B have a waistline portion that is a front-rear direction range corresponding to the waistline region T.
  • the front exterior body 12F does not have a portion corresponding to the intermediate region L, but the rear exterior body 12B has a collar cover portion 14 that extends from the waist region T to the intermediate region L side. is doing.
  • the front exterior body 12F is also provided with a collar cover portion that extends from the waistline region T toward the intermediate region L, a configuration that does not provide a collar cover portion while providing a groin cover portion, and the front exterior body 12F and It is not necessary to provide a portion corresponding to the intermediate region L in both of the rear exterior bodies 12B.
  • the lower edge of the buttock cover portion 14 is formed in a straight line shape along the width direction, similarly to the lower edge of the front exterior body 12F, but is positioned on the waist opening side toward the outer side in the width direction. It can also be a curve that becomes
  • the exterior bodies 12F and 12B are formed by joining the outer sheet layer 12S and the inner sheet layer 12H by a joining means such as a hot melt adhesive or welding as shown in FIGS.
  • the sheet material for forming the outer sheet layer 12S and the sheet material for forming the inner sheet layer 12H are individual sheet materials as shown in FIGS. 5, 7, 8, 11, and 12, and 9 and FIG. 10 can be used as a common sheet material. That is, in the latter case, the inner sheet layer 12H and the outer sheet layer 12S are respectively formed by the inner portion and the outer portion of one sheet material folded at the crotch side edge. In the former form, since there are few sheet material folding steps, there is an advantage that the inner sheet layer 12H and the outer sheet layer 12S are not easily displaced, and in the latter form, the number of sheet materials is small. There is.
  • the sheet material forming the outer sheet layer 12S wraps around the waist side edge of the sheet material forming the inner sheet layer 12H. It is preferable to fold inwardly to form a waist-side folded portion and to extend the waist-side folded portion 12r over the waist-side end of the interior body 200.
  • both the sheet material forming the outer sheet layer 12S and the sheet material forming the inner sheet layer 12H are folded inward at the edge on the waist side, and the folded portion 12r is turned to the waist side of the interior body 200. You may extend to the edge part.
  • the sheet material used for the outer sheet layer 12S and the inner sheet layer 12H can be used without particular limitation as long as it is a sheet, but is preferably a non-woven fabric.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing.
  • the processing method examples include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • the basis weight is preferably about 10 to 30 g / m 2 .
  • the total weight of the exterior bodies 12F and 12B is preferably about 20 to 60 g / m 2 .
  • elongated elastic elastic members 15 to 19 such as thread rubber are stretched between the outer sheet layer 12S and the inner sheet layer 12H in order to enhance the fit of the wearer around the torso. Is provided at a rate.
  • synthetic rubber or natural rubber may be used.
  • hot melt adhesives and heat seals by various coating methods are used for bonding the outer sheet layer 12S and the inner sheet layer 12H on the exterior bodies 12F and 12B and fixing the elongated elastic members 15 to 19 sandwiched between them.
  • hot melt adhesives and heat seals by various coating methods are used. At least one of fixing means by material welding such as an ultrasonic seal can be used.
  • a hot melt adhesive is applied only to the outer peripheral surfaces of the elongated elastic elastic members 15 to 19 by an application means such as a comb gun or a sure wrap nozzle, and sandwiched between the two sheet layers 12S and 12H, thereby forming the elongated shape. Only the hot melt adhesive applied to the outer peripheral surfaces of the elastic elastic members 15 to 19 is used to fix the elongated elastic elastic members 15 to 19 to both the sheet layers 12S and 12H and to fix the sheet layers 12S and 12H. It has a structure to do.
  • a plurality of waist elastic elastic members 17 are vertically spaced so as to be continuous over the entire width direction. And is fixed in a state of being stretched along the width direction at a predetermined stretch rate.
  • the waist elastic elastic member 17 has a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • the cross-sectional area is 0.05 to 1.5 mm 2 , particularly 0.1 to 1).
  • the rubber thread .0mm about 2), 4 3 to 22 present approximately at intervals of ⁇ 12 mm, respectively elongation 150-400%, preferably fixed in particular about 220-320%.
  • the waist elastic elastic member 17 does not need to have the same thickness and elongation rate.
  • the thickness and elongation rate of the elastic elastic member may be different between the upper portion and the lower portion of the waist portion W.
  • a plurality of waist lower elastic elastic members 15 and 19 made of an elongated elastic elastic member are vertically spaced between the outer sheet layer 12S and the inner sheet layer 12H in the waist lower part U of the exterior bodies 12F and 12B. And is fixed in a state of being stretched along the width direction at a predetermined stretch rate.
  • the waist elastic elastic members 15 and 19 have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • the cross-sectional area is 0.05 to 1.5 mm 2 , particularly 0.1. It is preferable to fix the thread rubber of about 1 to 15 mm 2 ) at an interval of 1 to 15 mm, particularly 3 to 8 mm, and about 5 to 30 pieces, respectively, with an elongation of 200 to 350%, particularly 240 to 300%.
  • cover elastic elastic members 16 made of an elongated elastic elastic member are vertically spaced between the outer sheet layer 12S and the inner sheet layer 12H in the buttock cover part 14 of the rear exterior body 12B. And it is being fixed in the state extended
  • the cover elastic member 16 has a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • the cross-sectional area is 0.05 to 1.5 mm 2 , particularly 0.1 to 1. It is preferable to fix the thread rubber of about 0 mm 2 at 5 to 40 mm, particularly about 2 to 10 at intervals of 5 to 20 mm, with an elongation of 150 to 300%, particularly 180 to 260%, respectively.
  • a cover elastic member When providing an inguinal cover portion on the front exterior body 12F, a cover elastic member can be provided in the same manner.
  • the width of the absorbent body 56 in part or all thereof.
  • the middle in the width direction preferably including the entire inner / outer fixing portion 201 including part or all of the portion overlapping the absorbent body 56 in the width direction is defined as the non-stretchable region A1, and its width Both sides in the direction are the stretchable region A2 over the entire width direction.
  • the elastic elastic members 15, 16 and 19 are attached from the one side seal portion 12 ⁇ / b> A to the other side seal portion 12 ⁇ / b> A across the absorber 56, and the elastic elastic member 15 is formed as the non-elastic region A ⁇ b> 1.
  • 16, 19 are not fixed to the inner sheet layer 12H and the outer sheet layer 12S, and are cut at one place in the middle in the width direction, or almost the entire elastic elastic members 15, 16, 19 are cut finely to expand and contract.
  • the non-stretchable region A1 can be constructed by killing the stretchability while leaving the stretchability in the region A2.
  • a part of the outer sheet layer 12S may be cut, but it is desirable to cut only the elastic elastic members 15, 16, and 19 only by heating and pressing without cutting the outer sheet layer 12S.
  • a cut mark 22 remains in at least one of the outer sheet layer 12S and the inner sheet layer 12H, and the outer sheet layer 12S and the inner sheet. Between the layers 12H, only the uncut portion that continues from the elastic elastic members 15, 16, and 19 in the elastic region A2 remains as the unnecessary elastic elastic member 18.
  • a seal roll 70 provided with a pressing portion 71 having a large number of cutting projections 73 on the outer peripheral surface;
  • the object to be cut is sandwiched between the inner sheet layer 12H and the outer sheet layer 12S with the display sheet 25 and elastic elastic members 15 to 17, 19 attached between the inner sheet layer 12H and the outer sheet layer 12S.
  • a method of cutting the elastic elastic members 15, 16, and 19 only at a portion sandwiched between the cutting projection 73 and the outer peripheral surface of the anvil roll 80 can be adopted by heating the cutting projection 73 according to the above. .
  • a cutting trace 22 remains in at least one of the outer sheet layer 12S and the inner sheet layer 12H, and between the outer sheet layer 12S and the inner sheet layer 12H.
  • the elastic remaining members that are continuous from the elastic elastic members 15, 16, and 19 in the elastic region A2 and the cut pieces of the elastic elastic members that are not continuous with the elastic elastic members 15, 16, and 19 in both elastic regions A2 are unnecessary. It will remain as 18.
  • a display sheet 25 having a character or the like is interposed in the non-stretchable region A1 of at least one of the front exterior body 12F and the rear exterior body 12B so as to be adjacent to the inside of the outer sheet layer 12S.
  • the display of the display sheet 25 can be seen through the outer sheet layer 12S.
  • the display sheet 25 is a base sheet made of paper or non-woven fabric, a decorative pattern (including pictures and one-point characters), usage instructions, usage assistance, function indications such as size, or the manufacturer or product name. It is possible to preferably use a display such as a mark display such as a characteristic function added by printing or the like.
  • the unnecessary elastic elastic member 18 is not applied to the inner surface of the display sheet 25 and the outer surface of the inner sheet layer 12H. It is fixed. Furthermore, the inner surface of the display sheet 25, the unnecessary elastic elastic member 18 and the outer surface of the inner sheet layer 12H may be unfixed to each other. That is, the outer surface of the display sheet 25 and the inner surface of the inner sheet layer 12H can be fixed to the opposite surface by a fixing means such as a hot melt adhesive, but the inner surface of the display sheet 25, the unnecessary elastic elastic member 18 and the inner surface. The outer surface of the sheet layer 12H is not fixed to the opposite surface by a fixing means such as a hot melt adhesive.
  • a continuous gap is formed on the back side of the display sheet 25.
  • a part of the elastic elastic members 15, 16, 19 in the non-expandable region A 1 is manufactured by fixing the inner side surface of the display sheet 25 by a fixing means such as a hot melt adhesive. Do not fix to the outer surface of the inner sheet layer 12H.
  • the front exterior body 12F and the rear exterior body 12B in the form shown in FIGS. 5, 7, and 8 are configured such that the sheet material forming the outer sheet layer 12S is the inner sheet layer 12H at the end of the crotch side.
  • the crotch-side folded portion 20 is formed by folding back inside, and the crotch-side folded portion 20 is fixed so as not to open. Therefore, the gap 12i between the display sheet 25 and the inner sheet layer 12H in the front exterior body 12F and the rear exterior body 12B is closed by the sheet material at the end portion on the crotch side, so that the gap 12i opens to the crotch side. It is surely prevented.
  • the fixing structure of the crotch-side folded portion 20 is not particularly limited, and uses fixing of other members, such as the crotch-side folded portion 20 being fixed by the inner and outer fixing portions 201 as shown in FIG. Further, as shown in FIG. 7, the crotch side folded portion 20 may be fixed to the opposing surface via a hot melt adhesive. As indicated by reference numeral 21 in FIG. 8, the crotch side folded portion 20 can be sealed together with the folded portion by means of material welding such as heat sealing or ultrasonic sealing.
  • the outer sheet layer 12S and the inner sheet layer 12H of the front exterior body 12F and the rear exterior body 12B are formed from a common sheet material, as shown in FIGS.
  • the inner sheet layer 12H and the outer sheet layer 12S of the front exterior body 12F and the rear exterior body 12B can be respectively formed by the inner part and the outer part of the sheet material folded in step 1). .
  • the gap 12i between the display sheet 25 and the inner sheet layer 12H in the front exterior body 12F and the rear exterior body 12B is closed by the sheet material at the crotch end, so that the gap 12i is on the crotch side. Opening is reliably prevented.
  • both the sheet material forming the inner sheet layer 12H and the sheet material forming the outer sheet layer 12S in the front exterior body 12F and the rear exterior body 12B are located at the crotch end. It is also possible to form the crotch side folded portion 20 by folding outward (or inside). Even in such a configuration, the gap 12i between the display sheet 25 and the inner sheet layer 12H in the front exterior body 12F and the rear exterior body 12B is closed by the sheet material at the crotch end, so that the gap 12i is on the crotch side. Opening is reliably prevented.
  • the turn-back length of the crotch-side turn-back portion 20 can be determined as appropriate, and in addition to a short portion of about 5 to 30 mm, as shown in FIG. 9 and FIG.
  • the length of the exterior body having the folded portion may be approximately the same as the length in the front-rear direction.
  • the display sheet 25 is an end portion on the crotch side of the front exterior body 12F and the rear exterior body 12B.
  • the display area can be widened and a large display area can be secured. Therefore, the separation distance 25e between the crotch side edge of the display sheet 25 and the crotch side edges of the front exterior body 12F and the rear exterior body 12B having the display sheet 25 can be about 5 to 30 mm.
  • the elastic elastic members 15, 16, and 19 for forming the non-stretchable region A1 are cut at only one position in the width direction of the non-stretchable region A1, thereby FIG.
  • the unnecessary elastic elastic member 18 consists only of the cutting remainder continuous from the elastic elastic member of expansion-contraction area
  • the display of the display sheet 25 is difficult to see due to the fact that the cut traces 22 are reduced and the cut traces 22 overlap.
  • the crotch-side folded portion 20 is provided on both the front exterior body 12F and the rear exterior body 12B, but only one of them can be provided (although both have display sheets 25, only one Including the case of applying the structure of the invention).
  • the following terms in the specification have the following meanings unless otherwise specified in the specification.
  • the “front / rear (vertical) direction” means a direction connecting the ventral side (front side) and the back side (rear side), and the “width direction” means a direction (left / right direction) orthogonal to the front / rear direction.
  • Elongation rate means a value when the natural length is 100%.
  • ⁇ “Weighing” is measured as follows. After the sample or test piece has been pre-dried, it is left in a test room or apparatus in a standard state (test location is temperature 20 ⁇ 5 ° C., relative humidity 65% or less) to obtain a constant weight. Pre-drying refers to making a sample or test piece constant in an environment where the relative humidity is 10 to 25% and the temperature does not exceed 50 ° C. In addition, it is not necessary to perform preliminary drying about the fiber whose official moisture content is 0.0%. A sample with a size of 200 mm ⁇ 250 mm ( ⁇ 2 mm) is cut out from the test piece in a constant weight using a rice-basis plate (200 mm ⁇ 250 mm, ⁇ 2 mm). Measure the weight of the sample, multiply it by 20, calculate the weight per square meter, and use it as the basis weight.
  • Thickness is automatically measured using an automatic thickness measuring instrument (KES-G5 handy compression measurement program) under the conditions of load: 10 gf / cm 2 and pressure area: 2 cm 2 .
  • the water absorption rate is the "time to end point" when JIS K7224-1996 "Water absorption rate test method for superabsorbent resin" is performed using 2 g of superabsorbent polymer and 50 g of physiological saline. .
  • test and measurement shall be performed in a test room or equipment in the standard condition (test location is temperature 20 ⁇ 5 °C, relative humidity 65% or less). .
  • the present invention can be used for pants-type disposable diapers such as the above examples.

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)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2016/058718 2015-03-24 2016-03-18 パンツタイプ使い捨ておむつ WO2016152784A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-060890 2015-03-24
JP2015060890A JP5992568B1 (ja) 2015-03-24 2015-03-24 パンツタイプ使い捨ておむつ

Publications (1)

Publication Number Publication Date
WO2016152784A1 true WO2016152784A1 (ja) 2016-09-29

Family

ID=56921019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/058718 WO2016152784A1 (ja) 2015-03-24 2016-03-18 パンツタイプ使い捨ておむつ

Country Status (3)

Country Link
JP (1) JP5992568B1 (zh)
CN (2) CN105997360B (zh)
WO (1) WO2016152784A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018097771A1 (en) 2016-11-23 2018-05-31 Essity Hygiene And Health Aktiebolag Absorbent article with folded edges to enclose elastic elements and method for manufacturing an absorbent article with folded edges
US20200397627A1 (en) * 2018-02-28 2020-12-24 Daio Paper Corporation Disposable wearing article

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5992568B1 (ja) * 2015-03-24 2016-09-14 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP6820708B2 (ja) * 2016-09-29 2021-01-27 大王製紙株式会社 吸収性物品
WO2018074400A1 (ja) * 2016-10-21 2018-04-26 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP6404297B2 (ja) * 2016-10-21 2018-10-10 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP6351685B2 (ja) * 2016-10-21 2018-07-04 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP6347826B2 (ja) * 2016-12-08 2018-06-27 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP6396396B2 (ja) * 2016-12-08 2018-09-26 大王製紙株式会社 パンツタイプ使い捨ておむつ及びその製造方法
JP7078433B2 (ja) * 2018-03-28 2022-05-31 大王製紙株式会社 パンツタイプ使い捨て着用物品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432718U (zh) * 1990-07-11 1992-03-17
JP2008264480A (ja) * 2007-03-23 2008-11-06 Oji Nepia Kk 使い捨ておむつの製造方法及び使い捨ておむつ
JP2009160128A (ja) * 2007-12-28 2009-07-23 Daio Paper Corp パンツ型使い捨ておむつ
JP2014028308A (ja) * 2013-10-10 2014-02-13 Uni Charm Corp 使い捨ておむつ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4986585B2 (ja) * 2006-11-27 2012-07-25 花王株式会社 吸収性物品
WO2009084643A1 (ja) * 2007-12-28 2009-07-09 Daio Paper Corporation パンツ型使い捨ておむつ
JP5250406B2 (ja) * 2008-12-03 2013-07-31 花王株式会社 シートの加工方法及び加工装置
JP5754986B2 (ja) * 2011-03-02 2015-07-29 ユニ・チャーム株式会社 使い捨ておむつ
JP5992568B1 (ja) * 2015-03-24 2016-09-14 大王製紙株式会社 パンツタイプ使い捨ておむつ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432718U (zh) * 1990-07-11 1992-03-17
JP2008264480A (ja) * 2007-03-23 2008-11-06 Oji Nepia Kk 使い捨ておむつの製造方法及び使い捨ておむつ
JP2009160128A (ja) * 2007-12-28 2009-07-23 Daio Paper Corp パンツ型使い捨ておむつ
JP2014028308A (ja) * 2013-10-10 2014-02-13 Uni Charm Corp 使い捨ておむつ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018097771A1 (en) 2016-11-23 2018-05-31 Essity Hygiene And Health Aktiebolag Absorbent article with folded edges to enclose elastic elements and method for manufacturing an absorbent article with folded edges
EP3544560A4 (en) * 2016-11-23 2020-06-17 Essity Hygiene and Health Aktiebolag SUCTIONABLE ARTICLE WITH FOLDED EDGES TO ENCLOSE ELASTIC ELEMENTS AND METHOD FOR PRODUCING AN SUCTIONABLE ARTICLE WITH FOLDED EDGES
US10993844B2 (en) 2016-11-23 2021-05-04 Essity Hygiene And Health Aktiebolag Absorbent article and method for manufacturing an absorbent article
US20200397627A1 (en) * 2018-02-28 2020-12-24 Daio Paper Corporation Disposable wearing article

Also Published As

Publication number Publication date
JP2016179041A (ja) 2016-10-13
CN105997360B (zh) 2021-01-08
CN105997360A (zh) 2016-10-12
CN205612636U (zh) 2016-10-05
JP5992568B1 (ja) 2016-09-14

Similar Documents

Publication Publication Date Title
JP5992568B1 (ja) パンツタイプ使い捨ておむつ
JP6057355B2 (ja) パンツタイプ使い捨ておむつ及びその製造方法
JP6362250B2 (ja) 吸収性物品
WO2015137129A1 (ja) パンツタイプ使い捨ておむつの製造方法、及びその製造方法により製造可能なパンツタイプ使い捨ておむつ
WO2018168561A1 (ja) 吸収性物品
WO2015198967A1 (ja) パンツタイプ使い捨ておむつの製造方法、及びパンツタイプ使い捨ておむつ
JP2015186563A5 (zh)
JP5964389B2 (ja) パンツタイプ使い捨ておむつ
JP2016007347A5 (zh)
JP6315337B2 (ja) パンツタイプ使い捨ておむつの製造方法
JP2016054989A5 (zh)
CN110691575B (zh) 短裤型一次性尿布
JP2016189819A5 (zh)
JP2016189819A (ja) 吸収性物品
JP6192026B2 (ja) パンツタイプ使い捨ておむつ及びその製造方法
JP2018033748A (ja) パンツタイプ使い捨ておむつ
JP6163280B1 (ja) パンツタイプ使い捨ておむつ
JP5638305B2 (ja) パンツタイプ使い捨ておむつ
JP7158836B2 (ja) パンツタイプ使い捨ておむつ
JP6183975B2 (ja) パンツタイプ使い捨ておむつ及びその製造方法
JP2016021989A (ja) 吸収性物品
JP2020018483A (ja) パンツタイプ使い捨て着用物品
JP2019054939A5 (zh)
JP7201739B2 (ja) パンツタイプ使い捨て着用物品
JP6186535B2 (ja) パンツタイプ使い捨ておむつ

Legal Events

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

Ref document number: 16768687

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16768687

Country of ref document: EP

Kind code of ref document: A1