WO2019131109A1 - パンツ型吸収性物品 - Google Patents

パンツ型吸収性物品 Download PDF

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Publication number
WO2019131109A1
WO2019131109A1 PCT/JP2018/045480 JP2018045480W WO2019131109A1 WO 2019131109 A1 WO2019131109 A1 WO 2019131109A1 JP 2018045480 W JP2018045480 W JP 2018045480W WO 2019131109 A1 WO2019131109 A1 WO 2019131109A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
absorbent article
pants
area
type absorbent
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2018/045480
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
秀晃 槇
井上　拓也
哲郎 大窪
紀子 清水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
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 Unicharm Corp filed Critical Unicharm Corp
Priority to CN201890001456.1U priority Critical patent/CN214104885U/zh
Publication of WO2019131109A1 publication Critical patent/WO2019131109A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/496—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies 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 of the pads

Definitions

  • the present invention relates to a pant-type absorbent article.
  • a pant-type disposable diaper is known as a pant-type absorbent article.
  • the absorbent main body is cross-linked between the front and back body exterior bodies, the widthwise side edges of the front and back body exterior bodies are joined to each other, and the waist opening is formed.
  • An underpants-type disposable diaper is disclosed.
  • an elastic material around the waist is fixed in an extended state between the inner sheet and the outer sheet (non-stretchable sheet).
  • Patent Document 1 a string-like stretchable material is exemplified as a waist elastic material.
  • a stretchable sheet instead, the front and rear body and the outer body (a waist portion) are worn by the wearer. It can be attached to Therefore, the trace of the stretchable material can be made difficult to remain.
  • the finger is less likely to be caught and pulled up in the waist portion provided with the stretchable sheet, as compared with the waist portion provided with the thread-like stretchable material.
  • the present invention has been made in view of the above-described conventional problems, and an object thereof is to make it easy to pull up a pants-type absorbent article in which a stretchable sheet is provided in a waist portion.
  • a main invention for achieving the above object is a pants-type absorbent article having an absorbent core, a first waist part, and a second waist part, which has an up-down direction and a left-right direction.
  • One waist portion has an elastic sheet which expands and contracts in the left and right direction, and a non-elastic sheet laminated on the elastic sheet, and the elastic sheet has one end extending in the left and right direction, and the other
  • the stretchable sheet has an end, and the one end of the stretchable sheet is positioned above the other end, and the stretchable sheet has an area on the side of the one end flipped over and a site on the side of the other end And a fixed area fixed to the non-stretchable sheet.
  • FIG. 8A and 8B are cross-sectional views of modifications of the ventral torso part 20.
  • FIG. 20 is a cross-sectional view of a modified example of the ventral-side waist portion 20.
  • FIG. 20 is a cross-sectional view of a modified example of the ventral-side waist portion 20.
  • FIG. 20 is a cross-sectional view of a modified example of the ventral-side waist portion 20.
  • FIG. 20 is a cross-sectional view of a modified example of the ventral-side waist portion 20.
  • the stretchable sheet has one end along the left-right direction and the other end
  • the stretchable sheet One end is positioned above the other end
  • the elastic sheet is fixed to the non-elastic sheet by fixing the region on the side of the one end to the curled-back region and the region on the side of the other end
  • the stretchable sheet rises in the thickness direction of the first waist part or is folded back in the vertical direction in the flipping area, so that the first waist part where the flipping area is located
  • the thickness of the part of the part increases, and the thickened part becomes a handle, making it easy to pull up the pant-type absorbent article.
  • the pants-type absorbent article wherein the turn-up area is an area in which the region on the one end side of the stretchable sheet is turned up and turned back in the vertical direction. is there.
  • the thickness of the portion of the first waist portion where the turn-up area is located is increased, and the thickened portion becomes a handle, making it easy to pull up the pant-type absorbent article.
  • the turn-up area has an opposite surface facing the stretchable sheet, and the opposite surface of the turn-up area is not fixed to the portion of the stretchable sheet facing It is a pants-type absorbent article characterized by the above.
  • a space is formed between the turn-up area and the stretchable sheet, and the thickness of the portion of the first waist portion where the turn-up area is located is further increased.
  • the turn-up area has an opposite side opposite to the opposite side facing the stretchable sheet, and the opposite side of the turn-up area is the pants-type absorbent article It is not fixed to the sheet which it has, It is a pants type absorbent article characterized by the above-mentioned.
  • a space is formed between the turn-up area and the sheet, and the thickness of the portion of the first waist portion where the turn-up area is located is further increased.
  • the turn-up area has an opposite side opposite to the opposite side facing the stretchable sheet, and the opposite side of the turn-up area is the pants-type absorbent article It is fixed to the sheet which it has, It is a pants type absorbent article characterized by the above-mentioned.
  • the rigidity of the portion of the first waist portion where the turn-up region is located is enhanced, and the user can easily hold the portion.
  • the first waistline portion in the left-right direction in a state where the region on the one end side of the stretchable sheet is folded back in the up-down direction to form the turn-up region. And a side end of the second waist portion in the left-right direction are welded.
  • Such a pants-type absorbent article comprising a fixing portion for fixing the stretchable sheet to the non-stretchable sheet, the fixing portion having one end along the left-right direction and the other end, The one end of the fixing portion is located above the other end, and the portion on the one end side of the fixing portion is not folded downward.
  • the layer of the fixing portion becomes one layer at the upper end of the first waist portion, and the upper end of the first waist portion can be softened to stimulate the wearer's skin. Can be prevented.
  • the stretchable sheet is folded back in the vertical direction at a fold line along the lateral direction, and the turn-up area is a portion of the stretchable sheet folded at the fold line
  • the region on the one end side of the stretchable sheet is a region turned up and down in the vertical direction.
  • the thickness of the portion of the first waist part where the turn-up region is located is further increased by the stretchable sheet being folded back in a plurality of times.
  • the pants-type absorbent article according to the present invention an embodiment will be described by taking a disposable diaper for infants as an example.
  • the pants-type absorbent article according to the present invention is not limited to disposable diapers for infants, and can also be used as disposable diapers for adults, menstrual shorts, and the like.
  • FIG. 1 is a perspective view of a shorts-type disposable diaper 1 (hereinafter, "diaper").
  • FIG. 2 is a plan view of the diaper 1 in the unfolded and stretched state.
  • FIG. 3 is a cross-sectional view taken along line II of FIG.
  • the diaper 1 has a vertical direction and a horizontal direction in the pants-type state shown in FIG. 1, and the waist opening BH and the pair of leg openings LH are formed.
  • the waist opening BH side is the upper side
  • the crotch side is the lower side.
  • the direction in which the materials constituting the diaper 1 are stacked is referred to as the thickness direction
  • the side in contact with the wearer in the thickness direction is referred to as the skin side, and the side not in contact with the wearer. It is called the non-skin side.
  • the diaper 1 has the absorptive main body 10, the ventral waistline part 20, and the back waistline part 30 which are three members of rectangular shape planar view.
  • the ventral torso 20 is applied to the ventral side of the wearer and the dorsal torso 30 is applied to the dorsal side of the wearer.
  • the ventral-side waist portion 20 and the back-side waist portion 30 are arranged such that their longitudinal direction is along the left-right direction of the diaper 1.
  • the end of the absorbent main body 10 on one side in the longitudinal direction is disposed at the center of the ventral-side waist portion 20 in the left-right direction, and the length of the absorbent main body 10 is at the center of the back-side waist portion 30 in the left-right direction.
  • the other end of the direction is disposed.
  • the absorbent main body 10 is folded in half at the approximate center of the longitudinal direction so that the longitudinal direction of the absorbent main body 10 follows the vertical direction of the diaper 1.
  • Both ends of the ventral waist portion 20 and both ends of the back waist portion 30 are joined by thermal welding, ultrasonic welding or the like to form a pair of joint regions 2 as shown in FIG. It becomes diaper 1 of a pants type state.
  • the absorbent main body 10 is disposed on the non-skin side of the absorbent body 11, the liquid-permeable top sheet 12 disposed on the skin side of the absorbent body 11, and the absorbent body 11. It has a liquid-impermeable back sheet 13 and an exterior sheet 14 disposed on the non-skin side of the back sheet 13.
  • Absorbent body 11 has absorptive core 11A which absorbs and holds waste fluid, such as urine, and liquid permeable core wrap sheet 11B which covers absorptive core 11A.
  • the absorbent core 11A include those in which a liquid absorbent fiber such as pulp containing a high absorbent polymer (SAP) is molded into a predetermined shape.
  • the leg elastic member 15 is provided in the both sides of the absorptive main body 10 in the left-right direction, and the diaper 1 fits around a leg of a wearer.
  • the leg elastic members 15 are, for example, fixed in a stretched state in the longitudinal direction of the absorbent main body 10 between the exterior sheet 14 which is folded back inward in the left-right direction to form two layers.
  • a thread-like elastic member or a stretchable sheet can be exemplified.
  • the ventral-side waist portion 20 and the back-side waist portion 30 are, as shown in FIG. 3, respectively, inner layer sheets 21 and 31, outer layer sheets 22 and 32 laminated on the inner layer sheets 21 and 31, and a plurality of filamentous elastic members 23 and 33.
  • the outer layer sheets 22 and 32 are arranged on the non-skin side of the inner layer sheets 21 and 31.
  • the inner layer sheets 21 and 31 and the outer layer sheets 22 and 32 are disposed on the non-skin side of the absorbent main body 10.
  • the upper ends 221 and 321 of the outer layer sheets 22 and 32 are folded downward to cover the longitudinal ends of the absorbent main body 10 from the skin side.
  • the inner layer sheets 21 and 31 and the outer layer sheets 22 and 32 alone are non-stretchable sheets that do not substantially have stretchability in the left-right direction of the diaper 1.
  • SMS non-woven fabric spun-bond / melt-blown / spun-bond non-woven fabric
  • spun-bond non-woven fabric spun-bond non-woven fabric
  • air-through non-woven fabric plastic sheet, apertured plastic sheet, and laminate sheets thereof as inner layer sheets 21 and 31 and outer layer sheets 22 and 32 Can.
  • the plurality of thread-like elastic members 23 and 33 are arranged in the vertical direction between the inner layer sheets 21 and 31 and the outer layer sheets 22 and 32, and fixed in an extended state in the horizontal direction. Therefore, the ventral waist part 20 and the back waist part 30 expand and contract in the left-right direction, and fit around the wearer's waist.
  • thread-like elastic members 23, 33 thread-like elastic members such as rubber and spandex can be exemplified.
  • the thread-like elastic member 33 is disposed from the upper end to the lower end.
  • the thread-like elastic member 23 is not disposed at the upper end portion of the ventral-side waist portion 20, and instead, the stretchable sheet 24 which is expanded and contracted in the left-right direction is disposed.
  • the lower end portion of the stretchable sheet 24 and the thread-like elastic member 23 are arranged to overlap in the vertical direction, but they do not have to overlap.
  • the stretchable sheet 24 without disposing the thread-like elastic member 23 at the upper end of the ventral waist part 20, the upper end of the ventral waist part 20 is in close contact with the wearer on the surface. Therefore, local tightening can be suppressed, and traces of the expansion and contraction member can be made difficult to remain. In particular, since the abdomen of an infant is popping out, it is preferable to suppress the tightening of the ventral torso part 20.
  • the stretchability of the upper end of the waist portion 20, 30 greatly influences the ease of opening the waist opening BH when the diaper 1 is worn.
  • the stretchable sheet 24 has a property of being easily stretched from the natural state and difficult to shrink from the stretched state. Therefore, by arranging the stretchable sheet 24 at the upper end of the ventral waist portion 20, the waist opening BH can be easily spread when the diaper 1 is worn, and after the waist portions 20 and 30 are fitted to the wearer. It can prevent the tightening of the abdomen.
  • the stretchable sheet 24 may be, for example, various types such as spunbonded non-woven fabric, air-through non-woven fabric, needle-punched non-woven fabric, etc. composed of elastic fibers having a mass of 10 to 40 g / m 2 , more preferably 15 to 30 g / m 2.
  • a stretchable non-woven fabric produced by a known method can be used.
  • the elastic fiber is made of a thermoplastic elastomer, rubber or the like as a raw material, and particularly when a thermoplastic elastomer is used as a raw material, melt spinning using an extruder is possible like an ordinary thermoplastic resin. Also, the fibers thus obtained are easily heat-sealed and are suitable as stretchable non-woven fibers.
  • thermoplastic elastomer examples include styrene-based elastomers, olefin-based elastomers, polyester-based elastomers, and polyurethane-based elastomers. These can be used singly or in combination of two or more.
  • the stretchable sheet may be any one that exhibits elasticity at least in the left-right direction, and may exhibit elasticity in two or more directions.
  • the stretching ratio in the left-right direction of the stretchable sheet 24 is preferably about 1.2 to 3.0.
  • FIG. 4 is a cross-sectional view of the ventral-side waist part 20 in the process of manufacturing.
  • FIG. 5 is a cross-sectional view of the ventral torso part 20 in the product state.
  • 6 is a plan view of the ventral torso part 20 shown in FIG. 4 and 5 are diagrams schematically showing the configuration of the ventral-side waist portion 20, and the thickness of the ventral-side waist portion 20 is drawn thick. The same applies to the sectional views described later.
  • the thread-like elastic member 23 is omitted.
  • the belly-side waist portion 20 includes the inner layer sheet 21, the outer layer sheet 22, and the stretchable sheet 24.
  • the outer layer sheet 22, the inner layer sheet 21, and the elastic sheet 24 are laminated in order from the non-skin side in the thickness direction.
  • Each of the inner layer sheet 21, the outer layer sheet 22, and the stretchable sheet 24 has one end 21a, 22a, 24a and the other end 21b, 22b, 24b extending along the left-right direction, as shown in FIG. In the product state (FIG. 5), one end 21a, 22a, 24a of each sheet is located above the other end 21b, 22b, 24b.
  • the inner layer sheet 21 and the outer layer sheet 22 are joined by an adhesive (not shown) applied therebetween.
  • the inner layer sheet 21 and the outer layer sheet 22 correspond to the non-stretchable sheet of the present invention.
  • the inner layer sheet 21 and the outer layer sheet 22 are collectively referred to as a non-stretchable sheet.
  • the stretchable sheet 24 and the outer layer sheet 22 extend above the inner layer sheet 22. Further, the outer layer sheet 22 extends above the stretchable sheet 24.
  • the outer layer sheet 22 is folded downward with the position of the one end 21 a of the inner layer sheet 21 as the folding position F.
  • the portion 221 of the outer layer sheet 22 folded back covers the longitudinal end of the absorbent main body 10 from the skin side. Further, the portion 221 of the outer layer sheet 22 which has been folded back is fixed to the stretchable sheet 24 and the absorbent main body 10 by the adhesive 42.
  • an adhesive 41 such as a hot melt adhesive is applied between the non-stretchable sheet (the inner layer sheet 21 and the outer layer sheet 22) and the stretchable sheet 24.
  • the stretchable sheet 24 is fixed to the non-stretchable sheets 21 and 22 by the adhesive 41.
  • the application region of the adhesive 41 is a rectangular region in plan view.
  • the application region of the adhesive 41 is also referred to as a fixing portion 41.
  • the adhesive 41 may be partially applied to the application region of the adhesive 41, or the adhesive 41 may be applied to the entire region.
  • Examples of the application pattern of the adhesive 41 may include known patterns such as a stripe pattern, a spiral pattern, and an ⁇ pattern.
  • the planar shape of the application region of the adhesive 41 is not limited to the rectangular shape.
  • the fixing portion is not limited to the adhesive 41, and may be a welding area in which the stretchable sheet 24 is fixed to the non-stretchable sheets 21 and 22 by heat welding, ultrasonic welding, or the like.
  • the fixing portion 41 has one end 41a and the other end 41b extending in the left-right direction. In the product state (FIG. 5), one end 41a of the fixing portion 41 is located above the other end 41b.
  • the stretchable sheet 24 is provided at the upper end portion of the ventral-side waist portion 20, the thread-like elastic member 23 is not provided.
  • the area in which the stretchable sheet 24 is provided is smaller and smoother than the area in which the thread-like elastic member 23 is provided. Therefore, when the user holds and holds the ventral torso part 20 at the time of wearing the diaper 1, it is difficult for the finger to be caught and to be pulled up.
  • the fixing portion 41 does not straddle the end 24 a of the stretchable sheet 24 in the vertical direction. That is, it is preferable that the fixing portion 41 is not provided at a portion on the side of the one end 24 a of the stretchable sheet 24. Specifically, when the stretchable sheet 24 is fixed to the non-stretchable sheets 21 and 22 (FIG. 4), one end 24a of the stretchable sheet 24 may be extended above the one end 41a of the fixing portion 41. . By doing so, the site
  • the stretchable sheet 24 has a “folded area 241” in which the site on one end 24a side is flipped, and the non-stretchable sheet 21, a site on the other end 24b side by the fixing section 41, 22 and a "fixed region 242".
  • the comeback area 241 is an area where the stretchable sheet 24 is flipped from the one end 41a (upper end) of the fixed part 41, and the part of the stretchable sheet 24 that contacts the one end 41a of the fixed part 41. It is a region from 24 c to one end 24 a of the elastic sheet 24.
  • the fixing portion 41 shown in FIG. 5 is provided straddling the other end 24 b (lower end) of the stretchable sheet 24 in the vertical direction. Therefore, the site
  • the present invention is not limited to the above, and the fixing portion 41 may not be provided at a portion on the other end 24 b side of the stretchable sheet 24. That is, the site
  • the thickness is increased as much as the stretchable sheet 24 is folded back, and the finger is easily caught at the thickened portion. That is, the thickened part becomes a handle and it becomes easy to pull up the diaper 1 (the waist parts 20 and 30).
  • the foldable area 241 is not formed by folding back the elastic sheet 24 in the folding step of the manufacturing method of the diaper 1, but is formed by folding back the elastic sheet 24 by the contraction force of the elastic sheet 24. Be done. Therefore, as shown in FIG. 5 etc., the upper end portion of the stretchable sheet 24 is folded back so as to be curved. That is, the upper end portion of the stretchable sheet 24 is curled. Therefore, the flipped area 241 is easily floated with respect to the fixed area 242, and a space is formed between the flipped area 241 and the fixed area 242. Thus, the portion of the ventral torso 20 where the turned-up area 241 is located is thick enough to be easily grasped by the user.
  • the user generally holds the upper end portions of the waist parts 20 and 30 and pulls up the diaper 1. Therefore, it is preferable that a portion on one end 24 a side of the stretchable sheet 24 (that is, an end on the side of the waist opening BH) be turned up.
  • the stretchable sheet 24 is provided at the upper end of the ventral waist portion 20 as in the diaper 1 of the present embodiment, the thickness of the ventral waist portion 20 of the portion easily grasped by the user is It can be thickened.
  • the stretchable sheet 24 When the stretchable sheet 24 is provided at the upper end portion of the ventral-side waist portion 20, at least a part of the stretchable sheet 24 is from the center CL (see FIG. 5) of the ventral-side waist portion 20 in the vertical direction. Is also located at the top. More preferably, all of the stretchable sheets 24 may be located above the center CL of the ventral waist portion 20.
  • FIG. 7 is a view for explaining a modification of the turning area 241.
  • the blind area 241 is not limited to the one in which the portion on the end 24 a side of the stretchable sheet 24 is folded back as shown in FIG. 5.
  • the area of the end of the stretchable sheet 24 on the side of the end 24a of the stretchable area 24 may be turned up and may rise in the thickness direction, as shown in FIG. Also in this case, the thickness of the portion of the ventral-side waist portion 20 where the turn-up area 241 is located is increased, and the diaper 1 can be easily pulled up.
  • the curled-down downward fold-back wrinkled area 241 has an opposing surface 241 a that faces the portion of the elastic sheet 24 that has not been curled-up. And it is preferable that the opposing surface 241a of the turning area
  • the stretchable sheets 24 are not fixed by an adhesive or the like. By doing so, a space is formed between the facing surface 241 a of the turn-up area 241 and the elastic sheet facing it. Therefore, the thickness of the part of belly side waist part 20 in which turning area 241 is located further increases, and it becomes easy to pull up diaper 1.
  • the turn-up area 241 has an opposite side surface 241 b opposite to the opposite surface 241 a facing the stretchable sheet 24. It is preferable that the opposite side surface 241 b of the turn-up area 24 is not fixed to the sheet of the diaper 1. In FIG. 5, the opposite side surface 241 b of the turn-up area 241 is not fixed to the non-skin screen of the outer layer sheet 22 folded back downward with an adhesive or the like.
  • the configuration of the belly-side waist portion 20 is not limited to that shown in FIG.
  • the underpants type diaper 1 has a pair of joining area
  • the stretchable sheet 24 may be extended to the outside of the formation position of the bonding area 2 in the left-right direction.
  • region 2 is formed in the state in which the site
  • part by the side of the one end 24a of the elastic sheet 24 is folded back downwards and the turning area
  • the layer of the fixing portion 41 becomes one layer, and the upper end portion of the ventral-side waist portion 20 is soft. If the upper end of the ventral waist portion 20 is soft, it can be prevented that the upper end (edge) of the ventral waist portion 20 stimulates the skin of the wearer. Further, in the natural state of the diaper 1, the upper end portion of the ventral waistline portion 20 is likely to be frilled. Therefore, the user can have the impression that the diaper 1 is soft and comfortable to wear.
  • FIG. 8A and 8B are cross-sectional views of modifications of the ventral torso part 20.
  • FIG. 8A is a view of the ventral waist portion 20 in the process of manufacturing
  • FIG. 8B is a view of the ventral waist portion 20 in the product state.
  • the stretchable sheet 24 may be fixed by the fixing portion 41 to the portion 221 of the outer layer sheet 22 which is folded downward as in the ventral-side waist portion 20 of FIG. 8B.
  • the lower end 24 a of the stretchable sheet 24 becomes the one end 24 a of the stretchable sheet 24 in the state in the middle of the production (FIG. 8A). Therefore, the fixing portion 41 may be provided above the one end 24 a (lower end) of the stretchable sheet 24. By doing so, a part on the side of the one end 24 a of the stretchable sheet 24 is flipped up by the contraction force of the stretchable sheet 24 in the middle of production, and a flipped up area 241 is formed. Therefore, the thickness of the part of belly side waist part 20 in which turning up area 241 is located increases, and it becomes easy to pull up diaper 1.
  • FIG. 9 to 11 are cross-sectional views of modifications of the ventral-side waist portion 20.
  • FIG. In the belly-side waist part 20 of FIG. 5 described above, the upper end of the stretchable sheet 24 and the upper end (one end 41 a) of the fixing part 41 are located up to the upper end 20 a of the belly-side waist part 20.
  • the upper end of the stretchable sheet 24 and the upper end (one end 41a) of the fixing portion 41 are lower than the upper end 20a of the ventral-side waist portion 20. positioned. That is, in the upper end portion of the ventral-side waist portion 20, there is a region in which the stretchable sheet 24 and the fixing portion 41 are not located. Therefore, in the ventral-side waist portion 20 of FIG. 9 and FIG. 10, the upper end is softer than the vent-side waist portion 20 of FIG. Therefore, it can prevent that a wearer's skin is stimulated by the upper end (edge) 20a of belly side waist part 20, and diaper 1 has the impression that it is soft and comfortable to wear to the user. You can get it.
  • the adhesive 42 provided on the portion 221 of the outer layer sheet 22 folded back downward is opposed to the turning-up area 241. Therefore, the opposite side surface 241b of the turn-up area 241 is fixed by the adhesive 42 to the portion 221 of the outer layer sheet 22 folded back downward.
  • the opposite side surface 241b of the turning area 241 may be fixed to the sheet of the diaper 1.
  • the rigidity of the portion of the ventral torso region 20 where the turning up area 241 is located can be enhanced. Therefore, the user can easily grasp the thickened area 241 and pull up the diaper 1 easily.
  • at least a part of the opposite side surface 241b of the turn-up area 241 may be fixed to the sheet.
  • the portion on one end 24 a side of the stretchable sheet 24 is folded downward along with the outer layer sheet 22 and the fixing portion 41 along the folding line F along the left-right direction of the diaper 1 . That is, the method of manufacturing the diaper 1 includes the step of folding the stretchable sheet 24 downward. And the fixing
  • the number of laminated flexible sheets 24 in the turn-up area 241 is three. Therefore, in the belly-side waist portion 20 of FIG. 11, the thickness of the belly-side waist portion 20 is further increased by the amount by which the stretchable sheet 24 is folded back twice, and it becomes easy to pull up the diaper 1.
  • both sides (non-skin side and skin side) of the turn-up area 241 face the stretchable sheet 24 respectively. And both sides of the turning area 241 are not fixed to the part of elastic sheet 24 which each opposes. Therefore, a space is formed between the non-skin side of the turning area 241 and the portion of the elastic sheet 24 which is not folded back, and the elastic side of the turning area 241 and the elastic side folded back at the folding line F A space is also formed between the 24 sites. Therefore, the thickness of the part of belly side waist part 20 in which turning area 241 is located further increases, and it becomes easy to pull up diaper 1.
  • the manufacturing method of the diapar 1 may be twice or more the process of folding up the site
  • the number of stacked elastic sheets 241 in the turn-up area 241 is increased by the number of times of turn-back, and the thickness of the ventral-side waist portion 20 is increased.
  • the ventral waist portion 20 has the stretchable sheet 24, the ventral waist portion 20 corresponds to the first waist portion of the present invention, and the back waist portion 20 is the second waist portion of the present invention. It corresponds to, but it is not limited to this.
  • a mode in which the back waistline portion 20 has an elastic sheet 24, the back waistline portion 30 corresponds to a first waistline portion of the present invention, and the belly side waistline portion 20 corresponds to a second waistline portion of the present invention May be.
  • the second waist portion of the present invention may have a stretchable sheet, and both the ventral waist portion 20 and the back waist portion 30 may have a stretch sheet.
  • the stretchable sheet of the second waist part (the stretch sheet of either the ventral waistline 20 or the back waistline 30) has an area on one end side that is torn off It may or may not have.
  • the stretchable sheet 24 is disposed at the upper end portion of the ventral-side waist portion 20.
  • the stretchable sheet 24 may be located at any position of the ventral-side waist portion 20 in the vertical direction. May be arranged.
  • ventral waistline portion 20 and the back waistline portion 30 are separated as the pants-type absorbent article, and the three members of the ventral waistline portion 20, the back waistline portion 30, and the absorbent main body 10
  • the so-called 3 piece type diaper which it has is illustrated, it does not restrict to this.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2018/045480 2017-12-28 2018-12-11 パンツ型吸収性物品 Ceased WO2019131109A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201890001456.1U CN214104885U (zh) 2017-12-28 2018-12-11 短裤型吸收性物品

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JP2017-255003 2017-12-28
JP2017255003A JP7107681B2 (ja) 2017-12-28 2017-12-28 パンツ型吸収性物品

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Publication number Priority date Publication date Assignee Title
CN114681207A (zh) * 2020-12-29 2022-07-01 尤妮佳股份有限公司 一次性穿着物品

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0484309U (https=) * 1990-11-30 1992-07-22
JP2014100157A (ja) * 2012-11-16 2014-06-05 Kao Corp 使い捨ておむつ
WO2016159095A1 (ja) * 2015-03-30 2016-10-06 大王製紙株式会社 パンツタイプ使い捨ておむつ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0484309U (https=) * 1990-11-30 1992-07-22
JP2014100157A (ja) * 2012-11-16 2014-06-05 Kao Corp 使い捨ておむつ
WO2016159095A1 (ja) * 2015-03-30 2016-10-06 大王製紙株式会社 パンツタイプ使い捨ておむつ

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JP2019118579A (ja) 2019-07-22
JP7107681B2 (ja) 2022-07-27

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