WO2016103866A1 - 使い捨て着用物品 - Google Patents

使い捨て着用物品 Download PDF

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Publication number
WO2016103866A1
WO2016103866A1 PCT/JP2015/079266 JP2015079266W WO2016103866A1 WO 2016103866 A1 WO2016103866 A1 WO 2016103866A1 JP 2015079266 W JP2015079266 W JP 2015079266W WO 2016103866 A1 WO2016103866 A1 WO 2016103866A1
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WO
WIPO (PCT)
Prior art keywords
elastic member
leak
leg
branch line
proof cuff
Prior art date
Application number
PCT/JP2015/079266
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
瀧野　俊介
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201580054175.3A priority Critical patent/CN106794091B/zh
Publication of WO2016103866A1 publication Critical patent/WO2016103866A1/ja

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    • 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
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means

Definitions

  • the present invention relates to a disposable wearing article.
  • Patent Document 1 discloses that an absorbent body, a side flap having a plurality of leg-hole elastic members extending outward from both lateral edges of the absorbent body, and a longitudinal side along the absorbent side edge on the side flap.
  • the leak-proof cuff has a standing line between a plurality of leg-hole elastic members of the side flap, and one or more are provided inside the standing line of the leak-proof cuff.
  • Disposable diapers are disclosed in which the weirs of the cuffs at the crotch portion are raised by arranging the elastic members around the legs.
  • the leak-proof cuff by disposing one or more leg-hole elastic members inside the standing line of the leak-proof cuff, the leak-proof cuff can easily rise due to the elastic contraction force of the leg-hole elastic member. As a result, the height of the weir of the leak-proof cuff is increased, so that the capacity of the pocket structure formed by the leak-proof cuff increases and leakage is prevented.
  • the present invention provides a disposable wearing article in which a plurality of leg-holes elastic members provided on a side flap at the time of wearing and a leak-proof cuff portion do not overlap and a pocket structure is stably formed. This is the issue.
  • the present invention has a longitudinal direction and a lateral direction orthogonal to each other, a skin facing surface facing the wearer's skin and a non-skin facing surface on the opposite side, a front waistline region, a back waistline region, and a front and back waistline
  • the present invention relates to a disposable wearing article including an absorbent structure including a crotch region located between the regions and extending from the crotch region to the front and rear waistline region.
  • the wearing article of the present invention includes an absorbent structure in which the absorbent structure extends in the vertical direction and a pair of side flaps that extend laterally outward from both side edges of the absorbent body, and each of the pair of side flaps is an absorbent body.
  • a longitudinally extending distal edge that is laterally spaced from the lateral edge, a longitudinally extending branch line located on the skin facing surface between the absorbent side edge and the distal edge, and the branched line A leak-proof cuff having a leak-proof cuff that branches and extends in a direction toward the longitudinal center line of the wearing article, and a leg elastic portion that is positioned between the branch line and the distal edge and extends in the vertical direction.
  • leg elastic portion are joined to each other at the branch line, and the leak-proof cuff portion has a free edge extending in the vertical direction and spaced apart from the branch line in the vertical direction, and the leak-proof cuff elastic member extends along the free edge.
  • the leg elastic part extends in the vertical direction and the lateral dimensions are mutually
  • the leg elastic part is fixed in a stretched state in the longitudinal direction in each of the sub areas, and the leg elastic part front end part and the leg elastic part rear part located at both longitudinal end parts of the leg elastic part
  • the end portions are respectively fixed to the front waistline region and the rear waistline region.
  • a disposable pocket structure can be stably formed without overlapping a plurality of leg-hole elastic members and a leak-proof cuff provided on a side flap when worn.
  • a wearing article is provided.
  • FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 2.
  • FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. 2.
  • the cross-sectional schematic diagram showing the state of the crotch region of a diaper at the time of wear.
  • the cross-sectional schematic diagram similar to FIG. 3 showing the modification of a diaper.
  • the following embodiment relates to a diaper 10 shown in the accompanying drawings as an example of the disposable wearing article of the present invention, and includes not only an indispensable structure of the invention but also a selective and preferable structure.
  • a disposable diaper 10 includes a transverse direction X and a longitudinal direction Y, a longitudinal center line P extending in the longitudinal direction Y by dividing the transverse X dimension of the diaper 10 into two equal parts, and a skin facing surface. And a non-skin facing surface that is the opposite surface.
  • the diaper 10 includes a front waistline region 11, a rear waistline region 12, and a crotch region 13 positioned between the front and rear waist regions 11 and 12, and the diaper 10 extends from the crotch region 13 to the front and rear waist regions 11 and 12.
  • An absorbent structure 14 is provided that extends.
  • the front waist region 11 and the rear waist region 12 include a front waist panel 16 and a rear waist panel 17, respectively.
  • the crotch region 13 includes an absorbent structure 14, and the front and rear end portions 14 a and 14 b located at both ends in the longitudinal direction Y of the absorbent structure 14 are front and rear waist panels 16 and 17, that is, the front waistline region 11 and the rear waistline. Joined to area 12.
  • the front waist panel 16 has a substantially rectangular shape, and has an inner edge 16a and an outer edge 16b extending in parallel with each other in the lateral direction X, and both outer edges 16c extending in parallel with each other in the longitudinal direction Y.
  • the rear waist panel 17 has a substantially trapezoidal shape, an intermediate inner end edge 17a extending in the horizontal direction X, an outer end edge 17b extending in the horizontal direction X in parallel with the intermediate inner end edge 17a, and inner and outer end edges 17a, Both outer edges 17c extending in the longitudinal direction Y between 17b, and both inner edges 17d connecting the both outer edges 17c and the intermediate inner end edge 17a and extending obliquely with respect to the longitudinal centerline P are provided.
  • Both side edges 16c of the front waist panel 16 and both side edges 17c of the rear waist panel 17 are connected to each other at a side seam 20 which is overlapped with each other and intermittently extends in the longitudinal direction Y, and a waist opening 18 and a pair of leg openings 19 are formed. It is formed.
  • the overlapping sheets are heat-bonded to each other by heating or ultrasonic embossing / debossing.
  • the front and rear waist panels 16 and 17 include inner layer sheets 21 and 22 positioned on the skin facing surface side and outer layer sheets 23 and 24 positioned on the non-skin facing surface side, respectively. Further, in each of the front and rear waist panels 16 and 17, the front and rear waistline elastic members 25 and 26 made of a plurality of strand-like elastic materials are extended in the lateral direction X, and the inner layer sheets 21 and 22 and the outer layer sheets 23, 24 is attached with an adhesive, for example, a hot melt adhesive.
  • an adhesive for example, a hot melt adhesive.
  • the joining between the inner layer sheets 21 and 22 and the outer layer sheets 23 and 24 can be performed by applying an adhesive such as a hot melt adhesive between the inner layer sheets 21 and 22 and the outer layer sheets 23 and 24. Further, the inner layer sheets 21 and 22 and the outer layer sheets 23 and 24 can be joined by using an adhesive applied to the outer circumferences of the front and rear waist elastic members 25 and 26, for example, a hot melt adhesive.
  • Each of the inner layer sheets 21 and 22 may be formed of only one sheet material, or may be formed of a plurality of sheet materials.
  • an elastic nonwoven fabric or a strand-like elastic material having a fineness of about 300 to 940 dtex can be used so that the expansion ratio is about 1.5 to 3.0 times.
  • the absorbent structure 14 has a vertically long rectangular shape, a front end portion 14a joined to the skin facing surface of the front waist panel 16, a rear end portion 14b joined to the skin facing surface of the rear waist panel 17, and front and rear ends.
  • An intermediate portion 14c extending in the longitudinal direction Y between the portions 14a and 14b and located in the crotch region 13 is provided.
  • the absorbent structure 14 includes a body-side liner 30 that faces the wearer's skin during use, a backsheet 31 that is disposed on the non-skin-facing surface side of the body-side liner 30, and the body side.
  • An absorbent body 32 interposed between the liner 30 and the back sheet 31 and a covering sheet 33 disposed on the non-skin facing surface side of the back sheet 31 are included.
  • the body side liner 30, the back sheet 31, and the covering sheet 33 extend from the absorbent body 32 in the horizontal direction X and the vertical direction Y.
  • the body-side liner 30 is formed of a sheet having liquid permeability, and for example, a spunbond fiber nonwoven fabric, an SMS fiber nonwoven fabric, etc., having a hydrophilicity of about 15 to 25 g / m 2 per unit area can be used.
  • the back sheet 31 is formed of a non-liquid-permeable sheet, and can be formed of, for example, a plastic film or a fiber nonwoven fabric having a mass per unit area of about 10 to 25 g / m 2 and preferably having moisture permeability.
  • the covering sheet 33 is also formed from a liquid-impermeable sheet, and for example, a hydrophobic SMS fiber nonwoven fabric or spunbond fiber nonwoven fabric having a mass per unit area of about 10 to 25 g / m 2 can be used.
  • the absorbent body 32 has front and rear end edges 32a and 32b located on the front and rear waist panels 16 and 17, and both side edges 32c extending in the longitudinal direction Y between the front and rear end edges 32a and 32b, and fluff pulp and superabsorbent polymer.
  • a liquid-absorbent core (not shown) formed of an absorbent material such as particles, and a liquid-diffusible core wrap sheet (not shown) such as tissue paper for covering the entire liquid-absorbent core .
  • the absorbent body 32 extends in the longitudinal direction Y at the center in the lateral direction X of the absorbent structure 14.
  • a pair of body-side liner 30, back sheet 31, and covering sheet 33 extend from the side edge 32 c of absorbent body 32 to both sides in the lateral direction X and extend in the longitudinal direction Y symmetrically with respect to longitudinal center line P.
  • Side flaps 40 are formed.
  • the front and rear end portions 14 a and 14 b of the absorbent structure 14 include a side flap front end portion 40 a and a rear end portion 40 b that are located at both ends in the longitudinal direction Y of the side flap 40.
  • the side flap front end portion 40a and the rear end portion 40b are joined to the skin facing surfaces of the front and rear waist panels 16 and 17, respectively.
  • the side flap 40 corresponds to the outer edge of the side flap 40 and extends in the longitudinal direction Y.
  • the side flap 40 is located on the skin-facing surface between the side edge 32c and the distal edge 40c of the absorbent body 32, and is in the longitudinal direction.
  • a branch line 41 extending to Y
  • a leak-proof cuff 42 that branches from the branch line 41 and extends in the direction toward the longitudinal center line P
  • a leg elastic part positioned between the branch line 41 and the distal edge 40c 43.
  • the leak-proof cuff part 42 and the leg elastic part 43 extend in the longitudinal direction Y.
  • the side elastic members 47 extend in the vertical direction Y along the side edges 32 c of the absorber 32, and the branch line elastic members 44 extend in the vertical direction Y along the branch lines 41.
  • the leak-proof cuff portion 42 includes a free edge 42c that is spaced apart from the branch line 41 and extends in the vertical direction Y, and a leak-proof cuff elastic member 45 that extends in the vertical direction Y along the free edge 42c.
  • a leak-proof cuff front end 42a and a leak-proof cuff rear end 42b are located at both ends in the longitudinal direction Y of the leak-proof cuff 42, respectively.
  • the leakproof cuff front and rear end portions 42a and 42b are joined to the skin facing surfaces of the front and rear waist panels 16 and 17, respectively.
  • the leg elastic portion 43 includes a leg-hole elastic member 46 extending in the longitudinal direction Y between the branch line 41 and the side flap distal edge 40c.
  • a leg elastic portion front end portion 43a and a leg elastic portion rear end portion 43b are located at both ends in the longitudinal direction Y of the leg elastic portion 43, respectively.
  • the leg elastic portion front and rear end portions 43a and 43b are fixed to the skin facing surfaces of the front and rear waist panels 16 and 17, respectively.
  • the side flap front end portion 40a includes a leakproof cuff front end portion 42a and a leg elastic portion front end portion 43a
  • the side flap rear end portion 40b includes a leakproof cuff rear end portion 42b and a leg elastic portion rear end portion 43b.
  • the leak-proof cuff part 42 and the leg elastic part 43 are formed by folding back the body side liner 30, the back sheet 31, and the covering sheet 33 included in the side flap 40.
  • the leg elastic part 43 is formed by folding the covering sheet 33 included in the side flap 40 toward the longitudinal center line P (see FIGS. 3 and 4).
  • the leak-proof cuff portion 42 overlaps the end portion 33a of the covering sheet 33 folded back toward the longitudinal center line P with the back sheet 31 and the body side liner 30 folded back toward the longitudinal center line P.
  • the covering sheets 33 that overlap between the branch line 41 and the side flap distal edge 40c in the leg elastic portion 43 are fixed to each other by an adhesive, for example, a hot melt adhesive (not shown).
  • the covering sheet 33, the back sheet 31, and the body side liner 30 that overlap between the branch line 41 and the free edge 42c in the leak-proof cuff portion 42 are also joined to each other by an adhesive, for example, a hot melt adhesive (not shown).
  • an adhesive for example, a hot melt adhesive (not shown).
  • the leak-proof cuff part 42 and the leg elastic part 43 are mutually fixed in the branch line 41 with the adhesive agent, for example, hot-melt-adhesive (not shown).
  • the adhesive agent for example, hot-melt-adhesive
  • one or more strand-shaped elastic materials having a fineness of about 300 to 940 dtex are used at an expansion ratio of about 1.5 to 3.0 times. be able to.
  • one 780 dtex elastic yarn is stretched 2.2 times in the longitudinal direction Y and joined to the outside of the absorbent body 32 in the lateral direction X.
  • the leg elastic member 46 disposed in the leg elastic portion 43 is joined in the longitudinal direction Y in an extended state. Specifically, the leg elastic portion 43 is partitioned into three sub-regions 49 that extend in the vertical direction Y and have the same lateral X dimension, and a leg-hole elastic member 46 is disposed in each of the three sub-regions 49.
  • a band-like or strand-like elastic material can be used by extending about 1.5 to 3.0 times.
  • an elastic yarn having a fineness of about 300 to 940 dtex it is preferable to use an elastic yarn having a fineness of about 300 to 940 dtex.
  • a plurality of elastic yarns are used as the leg-hole elastic member 46.
  • the contraction force of the leg elastic members 46 arranged in the sub-region 49 adjacent to the branch line 41 is adjacent to the distal edge 40c. It is preferable that it is larger than the contraction force of the leg-holes elastic member 46 arranged in the sub-region 49 to be operated. Moreover, it is preferable to make the expansion ratio of the leg-holes elastic member 46 arranged in each sub-region 49 substantially the same value. Thereby, the leg elastic part 43 becomes easy to protrude in the cylinder shape toward the lateral direction X outer side of the diaper 10 from the leg opening 19.
  • leg elastic part 43 in the sub-region 49 adjacent to the branch line 41, two 620 dtex elastic yarns are arranged at an expansion ratio of 2.2, and the sub-region 49 adjacent to the distal edge 40c.
  • Two elastic yarns of 310 dtex are arranged at a stretch magnification of 2.0 to 2.2 times, and one sub-region 49 positioned between the two sub-regions 49 is 620 dtex with a stretch magnification of 2.2 times 1 It is possible to dispose a single elastic yarn having a length of elastic yarn of 310 dtex and a stretching magnification of 2.0 to 2.2 times.
  • the leg-hole elastic member 46 can be joined to the inner side where the covering sheet 33 is folded back.
  • the leg elastic portion 43 has a cylindrical bellows structure and protrudes outward in the lateral direction X from the leg opening 19 of the diaper 10. It will be easier to fit your thigh. Further, in the leg elastic part 43, the contraction force of the leg elastic member 46 included in the sub-region 49 adjacent to the branch line 41 is used as the contraction force of the leg elastic member 46 included in the sub-region 49 adjacent to the distal edge 40c. By making it larger than this, the vicinity of the branch line 41 can be surely fitted to the wearer's thigh, and the distal edge 40c is prevented from stimulating the wearer's skin.
  • the branch line elastic member 44 is located between the leg-hole elastic member 46 and the leak-proof cuff elastic member 45 and extends in the longitudinal direction Y adjacent to the branch line 41 that is the standing base edge of the leak-proof cuff part 42.
  • the branch line elastic member 44 pulls up the branch line 41 toward the waist opening 18 when the diaper 10 is worn, and prevents the branch line 41 from sliding down.
  • the branch line elastic member 44 is positioned between the branch line 41 and the leak-proof cuff elastic member 45 and in contact with the branch line 41. It is preferable to arrange. Thereby, it can prevent effectively that the leak-proof cuff part 42 falls toward the leg elastic part 43.
  • the branch line elastic member 44 is not essential and may be omitted.
  • one or more strand-shaped elastic materials having a fineness of about 300 to 940 dtex can be used with an expansion ratio of about 1.5 to 3.0 times.
  • an elastic yarn of 780 dtex is elongated in the longitudinal direction Y at an elongation ratio of 2.2 times, and an adhesive, for example, a hot melt adhesive (not shown) is applied to the elastic yarn, and a leak-proof cuff portion It is fixed between the covering sheet 33 and the back sheet 31 included in 42.
  • an adhesive for example, a hot melt adhesive (not shown) is applied to the elastic yarn, and a leak-proof cuff portion It is fixed between the covering sheet 33 and the back sheet 31 included in 42.
  • the position of the branch line 41 and the position of the branch line elastic member 44 substantially coincide with each other in plan view.
  • the leak-proof cuff part 42 and the leg elastic part 43 are fixed via an adhesive applied to the branch line elastic member 44, for example, a hot melt adhesive.
  • the cover sheet 33 located at the boundary between the leg elastic part 43 and the leak-proof cuff part 42 and the back sheet 31 included in the leak-proof cuff part 42 are joined with an adhesive, for example, a hot melt adhesive.
  • the branch line 41 the leak-proof cuff part 42 and the leg elastic part 43 can be fixed at the branch line 41.
  • the branch line elastic member 44 is disposed between the branch line 41 and the leak-proof cuff elastic member 45 at a position adjacent to the branch line 41 and fixed to the leak-proof cuff part 42.
  • the leak-proof cuff part 42 has a free edge 42c that is spaced apart from the branch line 41 in the horizontal direction X and extends in the vertical direction Y, and the leak-proof cuff elastic member 45 is fixed in an extended state along the free edge 42c.
  • the leakproof cuff front and rear end portions 42 a and 42 b positioned at both ends in the longitudinal direction Y of the leakproof cuff portion 42 are joined to the skin facing surface of the side flap 40 by an adhesive, for example, a hot melt adhesive 50.
  • the leak-proof cuff elastic member 45 included in the front and rear end portions 42 a and 42 b of the leak-proof cuff is disposed outside the lateral direction X of the side edges 32 c of the absorber 32.
  • the leak-proof cuff elastic member 45 is preferably close to the side edge 32c of the absorber 32.
  • the separation distance in the lateral direction X between the side edge 32c of the absorber 32 and the leak-proof cuff elastic member 45 is 2 cm. Is preferably within.
  • the free edge 42c extending between the leakproof cuff front and rear end portions 42a and 42b rises with respect to the absorber 32 when the leakproof cuff elastic member 45 contracts when the diaper 10 is worn.
  • the leak-proof cuff part 42 functions as a weir which prevents the leakage of excrement.
  • the leak-proof cuff elastic member 45 is joined to the inner side where the covering sheet 33 is folded.
  • one or more strand-shaped elastic materials having a fineness of about 300 to 940 dtex can be used so that the expansion ratio is about 1.5 to 3.0 times.
  • two elastic yarns of 470 dtex are stretched at a stretching magnification of 2.8 times.
  • the present invention is not limited to this, and can be implemented with various modifications such as, for example, using two elastic yarns of 310 dtex while being stretched at a stretch ratio of 2.2.
  • the leakproof cuff front and rear end portions 42a and 42b of the leakproof cuff portion 42 are joined to the front and rear waist panels 16 and 17 in a state where the leakproof cuff portion 42 is laid sideways toward the longitudinal center line P. is doing.
  • the present invention is not limited to this.
  • the free edge 42c on which the leak-proof cuff elastic member 45 is disposed is bent away from the longitudinal center line P, and the leak-proof cuff front and rear end portions 42a. 42b can be joined to the front and rear waist panels 16, 17 with the free edge 42c folded.
  • the non-liquid-permeable covering sheet 33 and the non-liquid-permeable back sheet 31 overlap. This prevents excrement accumulated between the pair of leak-proof cuff portions 42 rising with respect to the absorber 32 from leaking out of the leak-proof cuff portion 42.
  • a body-side liner 30 having liquid permeability is disposed on the skin-facing surface of the absorbent body 32 between the branch lines 41 of the pair of leak-proof cuff parts 42 and is excreted between the pair of leak-proof cuff parts 42. The urine is prevented from overflowing from the leak-proof cuff portion 42 by promptly guiding the urine to the absorber 32.
  • the distance from the branch line 41 to the free edge 42 c of the leak-proof cuff portion 42 is the distance from the branch line 41 to the distal edge 40 c of the leg elastic portion 43. It is preferable that the distance to be approximately the same or shorter.
  • the protection is sequentially performed along the direction away from the longitudinal center line P of the diaper 10.
  • the leakage cuff elastic member 45, the branch line elastic member 44, and the leg-hole elastic member 46 are located.
  • the side flap front and rear end portions 40a and 40b joined to the front and rear waist panels 16 and 17 of the diaper 10 are extended in the wearer's waist direction, that is, in the lateral direction X of the diaper 10.
  • the positional relationship in which the leakage-proof cuff elastic member 45 and the leg-hole elastic member 46 joined to the front and rear waist panels 16 and 17 of the diaper 10 are separated from each other in the lateral direction X is maintained.
  • the branch line elastic member 44 located between the leak-proof cuff elastic member 45 and the leg-hole elastic member 46 is located in the crotch region 13 of the diaper 10.
  • the branch line 41 located between the leak-proof cuff part 42 and the leg elastic part 43 is pulled up toward the waist opening 18.
  • the branch line 41 is prevented from sliding down, the angle formed by the leak-proof cuff portion 42 and the leg elastic portion 43 is maintained, and the leak-proof cuff portion 42 and the leg elastic portion 43 overlap or cross each other. It is prevented.
  • the side elastic members 47 arranged along the side edges 32 c of the absorber 32 pull up the absorber 32 toward the waist opening 18.
  • the leak-proof cuff elastic member 45 is located outside the lateral edge X of the side edge 32 c of the absorber 32, and the leg elastic part 43 is located further outside the leak-proof cuff elastic member 45 in the lateral direction X.
  • the leg elastic portion 43 protrudes outward in the lateral direction X of the diaper 10 in the crotch region 13, and a portion from the side edge 32 c of the absorber 32 to the leg elastic portion 43 in the side flap 40. Extends diagonally upward.
  • pocket structures 48 that are recessed outward in the lateral direction X when viewed from the inside of the diaper 10 are stably formed on both sides of the absorber 32.
  • the contraction force of the leak-proof cuff elastic member 45 is larger than the contraction force of the leg-hole elastic member 46 included in the leg elastic part 43.
  • the side flap 40 When the front and rear end portions 42a and 42b of the leak-proof cuff are arranged inside the both side edges 32c of the absorber 32, the side flap 40 has a shape that rises vertically from the side edge 32c of the absorber 32 to the leg elastic portion 43.
  • the pocket structure 48 that is recessed outward in the lateral direction X is difficult to be formed.
  • the leak-proof cuff elastic member 45 is disposed outside the lateral edge X of the side edge 32 c of the absorber 32.
  • front and rear waistline elastic members 25 and 26 extending in the transverse direction X and the leakage-proof cuff elastic member 45 extending in the longitudinal direction Y in plan view of the front and rear waistline regions 11 and 12 to which the side flap front and rear end portions 40a and 40b are joined. If the branch line elastic member 44 and the leg-line elastic member 46 are arranged so as to intersect with each other, the respective elastic members are interlocked, and the leak-proof cuff elastic member 45, the branch line elastic member 44, and the leg-line elastic member 46 are linked. Can be reliably separated in the lateral direction X, which is preferable.
  • each elastic member can be interlocked, it is not essential to cross each other, and may be separated within a range of, for example, 20 mm. Further, when the side flap front and rear end portions 40a, 40b are joined to the front / rear waist regions 11, 12, the front / rear waist elastic members 25, 26, the leak-proof cuff elastic member 45, the branch line elastic member 44, and the leg-hole elastic member 46 are used. It is preferable to apply an adhesive, for example, a hot melt adhesive, at a position where the crosses. Thereby, the interlocking
  • an adhesive for example, a hot melt adhesive
  • leg-hole elastic member 46 is a plurality of strand-like elastic materials.
  • a band-shaped stretchable nonwoven fabric is used as the leg-hole elastic member 46 instead of the strand-shaped elastic material, and one strip-shaped stretchable nonwoven fabric is provided in each of the three sub-regions 49 of the leg elastic portion 43.
  • the contraction force of the strip-shaped stretchable nonwoven fabric included in the sub-region 49 adjacent to the branch line 41 is the contraction force of the strip-shaped stretchable nonwoven fabric included in the sub-region 49 adjacent to the distal edge 40c. It is preferable to make it larger.
  • the belt-shaped stretchable nonwoven fabrics are separated from each other in the lateral direction X. Also by using a belt-like stretchable nonwoven fabric as the leg elastic member 46, the leg elastic portion 43 and the leak-proof cuff portion 42 are prevented from overlapping or intersecting when worn, and a pocket structure is stably formed.
  • the three-piece disposable diaper 10 has been described as an example of the present invention.
  • the absorbent structure 14 is joined to the chassis partitioned into the front waist region and the waist region 11 and 12 and the crotch region 13 according to the present invention.
  • a disposable wearing article can also be obtained.
  • the side flap 40 and the absorber 32 which comprise the absorption structure 14 can also be made into a separate member.
  • one of the leak-proof cuff portion 42 and the leg elastic portion 43 included in the side flap 40 can be a separate member from the side flap 40 and can be joined to the side flap 40 at the branch line 41.
  • the bonding is performed by an adhesive, for example, a hot melt adhesive, unless otherwise specified.
  • the bonding can also be performed by thermal welding or ultrasonic welding.
  • various known materials that are normally used in the technical field to which the present invention belongs can be used for each constituent member constituting the wearing article without limitation. .
  • a crotch region having a longitudinal direction and a lateral direction, a skin facing surface facing the wearer's skin and a non-skin facing surface on the opposite side, and located between the front waistline region, the back waistline region, and the front and back waistline region
  • a disposable wearing article comprising an absorbent structure extending from the crotch region to the front and rear waistline region, the absorbent structure extending in the longitudinal direction and extending laterally outward from both side edges of the absorbent body
  • a pair of side flaps each of the pair of side flaps being spaced laterally from the side edge of the absorber and extending longitudinally, and between the side edge and the distal edge of the absorber.
  • a branch line that is located on the skin facing surface and extends in the vertical direction
  • a leak-proof cuff that branches from the branch line and extends in the direction toward the longitudinal center line of the wearing article
  • a leg elastic part that is positioned and extends in the longitudinal direction, and the leak-proof cuff part and the leg elastic part are:
  • the leak-proof cuff parts are joined to each other at the branch line, and the leak-proof cuff portion has a free edge extending in the vertical direction and spaced apart from the branch line.
  • the section is divided into three sub-regions extending in the vertical direction and having the same horizontal dimension.
  • the leg elastic members are fixed in a longitudinally extended state, and both longitudinal end portions of the leg elastic portion
  • the leg elastic portion front end portion and the leg elastic portion rear end portion located at the front are fixed to the front waistline region and the rear waistline region, respectively.
  • the present invention relating to the disposable wearing article disclosed in the above paragraph 0037 can include at least the following embodiments.
  • the embodiments can be adopted separately or in combination with each other.
  • positioned at a pair of leak-proof cuff part is located in the outer side of the both-sides edge of an absorber in a horizontal direction.
  • the side elastic member is joined in an extended state on the inner side in the lateral direction from the branch line, and the side elastic member extends in the vertical direction along the side edge of the absorber.
  • the contraction force of the leak-proof cuff elastic member is larger than the contraction force of the leg-hole elastic member.
  • Diapers (disposable wearing items) 11 Front waistline region 12 Rear waistline region 13 Crotch region 14 Absorbing structure 14a Absorbing structure front end 14b Absorbing structure rear end 16 Front waist panel 17 Rear waist panel 25 Front waistline elastic member 26 Rear waistline elastic member 32 Absorption Body 32c Absorber side edge 40 Side flap 40a Side flap front end 40b Side flap rear end 40c Side flap distal edge 41 Branch line 42 Leak-proof cuff 42c Free edge 43 Leg elastic part 43a Leg elastic part front end 43b Leg Elastic part rear end part 44 Branch line elastic member 45 Leak-proof cuff elastic member 46 Leg elastic member 47 Side elastic member 49 Sub-region P Vertical center line X Horizontal direction Y Vertical direction

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2015/079266 2014-12-25 2015-10-16 使い捨て着用物品 WO2016103866A1 (ja)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP3991707A4 (en) * 2019-06-27 2023-07-12 Kao Corporation ABSORBENT ARTICLE
WO2024008531A1 (en) * 2022-07-07 2024-01-11 Essity Hygiene And Health Aktiebolag An absorbent article having standing gathers and leg cuffs

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JP7559053B2 (ja) * 2019-08-28 2024-10-01 エシティ・ハイジーン・アンド・ヘルス・アクチエボラグ バックシート配置を伴う衛生用品
JP7409985B2 (ja) * 2020-07-22 2024-01-09 花王株式会社 吸収性物品

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JP2005261554A (ja) * 2004-03-17 2005-09-29 Daio Paper Corp 使い捨て紙おむつ
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JP2010227414A (ja) * 2009-03-27 2010-10-14 Uni Charm Corp 使い捨てのおむつ
JP2011050501A (ja) * 2009-08-31 2011-03-17 Uni Charm Corp 着用物品
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WO2024008531A1 (en) * 2022-07-07 2024-01-11 Essity Hygiene And Health Aktiebolag An absorbent article having standing gathers and leg cuffs

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JP2016120142A (ja) 2016-07-07
CN106794091A (zh) 2017-05-31
JP6510808B2 (ja) 2019-05-08
CN106794091B (zh) 2020-11-06
TW201630581A (zh) 2016-09-01
TWI696454B (zh) 2020-06-21

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