WO2017065175A1 - Underpants-type disposable diaper - Google Patents

Underpants-type disposable diaper Download PDF

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Publication number
WO2017065175A1
WO2017065175A1 PCT/JP2016/080256 JP2016080256W WO2017065175A1 WO 2017065175 A1 WO2017065175 A1 WO 2017065175A1 JP 2016080256 W JP2016080256 W JP 2016080256W WO 2017065175 A1 WO2017065175 A1 WO 2017065175A1
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WO
WIPO (PCT)
Prior art keywords
diaper
crotch portion
elastic member
rear direction
wearer
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PCT/JP2016/080256
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French (fr)
Japanese (ja)
Inventor
梅林　豊志
Original Assignee
株式会社瑞光
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Application filed by 株式会社瑞光 filed Critical 株式会社瑞光
Priority to CN201680049706.4A priority Critical patent/CN107920936A/en
Publication of WO2017065175A1 publication Critical patent/WO2017065175A1/en

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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
    • 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

Definitions

  • the present invention relates to a pants-type disposable diaper.
  • Patent Document 1 An example of this type of diaper is shown in FIG.
  • the diaper includes a front body 20 covering the front of the wearer's torso, a back body 21 covering the back of the torso, the front body 20 and the back body 21. And a crotch portion 22 covering the wearer's crotch.
  • the diaper is formed in a pants shape by defining the waist opening WO and the pair of leg openings LO formed by joining the ends E of the front body 20 and the back body 21 in the waistline direction X to each other.
  • a plurality of elastic members F ⁇ b> 10 extending along the front-rear direction Y are arranged on the crotch portion 22.
  • An object of the present invention is to provide a pants-type disposable diaper capable of widely covering the physique of wearers of different sizes with one same diaper.
  • the crotch portion is provided with a plurality of elastic members extending along the front-rear direction (longitudinal direction),
  • the total length in the front-rear direction of the crotch portion in a natural diaper in which no external force is applied to the elastic member is 50 to 70% of the total length in the front-rear direction of the crotch portion in the deployed diaper with the elastic member extended. It is characterized by being.
  • the total length of the crotch portion of the diaper in the natural state is 50 to 70% of the diaper in the unfolded state, so that the crotch portion can be greatly stretched when worn. Therefore, for example, one diaper can be used for both S size and M size, or both M size and L size can be used. That is, the tolerance range of a wearer's physique can be expanded with one size diaper.
  • FIG. 1A and 1B each show an embodiment of the present diaper
  • FIG. 1A is a front view of the diaper developed
  • FIG. 1B is a cross-sectional view taken along line IB-IB in FIG. 1A
  • FIG. 2 is a rear view of the diaper
  • 3A and 3B are schematic side views of the diaper showing the natural state of the crotch portion of the diaper, respectively.
  • FIG. 4 is a perspective view of a known diaper.
  • the elastic member is provided over the entire length of the range in which the leg openings are formed in the front-rear direction, and is not provided in at least the upper half region of the front body and the back body.
  • an absorbent main body is arranged from the front body to the back body, Another elastic member extending along the front-rear direction is disposed at both edges in the waistline direction (width direction) of the absorbent main body.
  • the other elastic member when the diaper covers a wide range of the wearer's physique, the other elastic member will suppress leakage of body fluid from the leg opening.
  • the diaper 1 of this embodiment includes an absorbent main body 2 and a diaper main body 3.
  • the absorbent main body 2 and the diaper main body 3 have a front body 20, a rear body 21 and a crotch part 22.
  • the front body 20 covers the wearer's front trunk (front part of the trunk) and extends in the trunk circumference direction X.
  • the rear body 21 covers the wearer's rear trunk (rear part of the trunk) and extends in the trunk circumference direction X.
  • the crotch portion 22 covers the crotch of the wearer between the front body 20 and the back body 21.
  • the crotch portion 22 extends in the front-rear direction (vertical direction) Y orthogonal to the waistline direction X and continues to the front body 20 and the back body 21.
  • the absorbent main body 2 is long in the longitudinal direction (longitudinal direction) Y perpendicular to the waistline direction X.
  • the diaper 1 is formed in a pants shape in a state where the crotch portion 22 is folded in two along a virtual line parallel to the waistline direction X. That is, both ends E in the waistline direction X of the front body 20 of the diaper main body 3 and both ends E in the waistline direction X of the back body 21 are joined to each other as shown in FIG. A waist opening WO and a leg opening LO are formed by the joining.
  • the dot pattern is attached
  • the absorbent main body 2 is provided with an absorbent core (core) 24.
  • the absorption core 24 absorbs body fluid.
  • the absorbent core 24 is sandwiched between a top sheet 26 and a back sheet 27. The sheets 26 and 27 and the absorbent core 24 are stacked on each other.
  • the top sheet 26 is made of a liquid-permeable thin nonwoven fabric and covers the skin surface of the absorbent core 24.
  • a cuff 25 may be provided on the top sheet 26.
  • the “skin surface” means an inner surface that directly or indirectly contacts the wearer's skin when the diaper is worn, and directly or indirectly faces the wearer's skin.
  • the back sheet 27 covers the non-skin surface of the absorbent core 24 and is made of a liquid-impermeable resin sheet.
  • a non-skin surface of the back sheet 27 is laminated with an outer nonwoven fabric 30 having air permeability.
  • a pattern 28 is applied to the front body 20 and / or the back body 21.
  • the “non-skin surface” means an outer surface that does not contact the wearer's skin when the diaper on the side opposite to the skin surface is worn, and does not face the wearer's skin.
  • the absorbent main body 2 is disposed between the front body 20 and the back body 21.
  • the diaper main body 3 constitutes a pair of front side body 31 and rear side body 32 that protrude from the absorbent body 2 in the waistline direction X, respectively.
  • Each of the horizontal bodies 31, 32 constitutes a part of the front and rear waist portions. That is, as shown in FIG. 1A, each of the horizontal bodies 31 and 32 protrudes in the waistline direction X from the crotch portion 22 and extends in the waistline direction X from the absorbent main body 2 (crotch portion 22).
  • a plurality of elastic members F ⁇ b> 1 extending in the front-rear direction Y are arranged in the crotch portion 22 in parallel with each other.
  • the elastic member F1 is provided over the entire length of the range in which the leg opening LO (FIG. 4) is formed in the front-rear direction Y, and is provided in at least the upper half region of the front body 20 and the back body 21.
  • the “range in which the leg opening LO is formed” corresponds to, for example, the range indicated by the symbol L1 in FIG. That is, in the state where the diaper is unfolded as shown in FIG. 2, the elastic member F ⁇ b> 1 is disposed over the range in the front-rear direction Y from the central edge of the front horizontal body 31 to the central edge of the rear horizontal body 32.
  • the elastic member F1 of the crotch portion 22 is sandwiched between the back sheet 27 and the exterior nonwoven fabric 30 in FIG. 1B. As shown in FIG. 2, both ends of the elastic member F1 of the crotch portion 22 in the front-rear direction Y are in a state of being contracted by so-called snap back.
  • FIG. 1A another elastic member F2 extending along the front-rear direction Y is disposed at both ends of the absorbent main body 2 in the width direction X.
  • the other elastic member F2 may be disposed on the pair of cuffs 25, 25 (FIG. 1).
  • the hip elastic member F4 may not be disposed in the front body 20 and / or the back body 21 on which the design 28 is drawn, or may be subjected to a known invalidation process.
  • Disabling means disabling the tension of the elastic member F4, and includes, for example, cutting the elastic member F4 and snapping back, or cutting the elastic member F4 short with heat or a blade.
  • each of the elastic members F1 to F4 for example, a thread-like or belt-like material containing a plurality of thread rubbers, flat rubbers, thermoplastic resins (hot melt) or urethane foam can be employed.
  • the absorbent main body 2 and the crotch portion 22 may be formed with a leg-around portion constricted along the wearer's leg portion.
  • Another elastic member (not shown) made of, for example, rubber thread is provided along the leg circumference and the leg circumference of the waist circumference sections 3F and 3B so as to follow the wearer's leg circumference. It may be done.
  • the total length of the crotch portion 22 of the diaper in a developed state in which the elastic member F1 of the crotch portion 22 of FIG. 2 is extended in the front-rear direction 1 is L1.
  • the elastic members F1 to F4 contract as shown in FIGS. 4 to 3A in a natural state where no external force is applied to the elastic members F1 to F4, and the total length of the crotch portion 22 becomes L2.
  • the full length L2 is illustrated as being shifted downward from the diaper 1 in order to make the full length L2 easy to understand.
  • the total length L2 in the front-rear direction Y of the crotch portion 22 in the natural state in FIG. 3A is set to 50 to 70% of the total length L1 in the front-rear direction Y of the crotch portion 22 in the expanded state in FIG. 1A.
  • the total length ratio L2 / L1 may be set to 55% to 65%.
  • the crotch portion 22 may be worn at about 70% to 90% of the full length L1 in the deployed state. Therefore, the tolerance of the physique of the wearer who can wear this diaper will be expanded.
  • the “natural state in which no external force is applied” means that the diaper is suspended in the air with both ends E without wearing the diaper, or the front body 20 and the back body 21 are stacked. Means a state in which an external force other than the diaper's own weight is not essentially applied to the elastic member F1.
  • the “full length of the crotch portion” means the total length in the front-rear direction Y of the portion excluding the joined end portions E shown in FIGS. 1A and 3A.
  • the total length L2 of the crotch portion 22 in the natural state means the length L2 of the smooth envelope L connecting the vertices 50 of the non-skin surface of the heel 5 as shown in FIGS. 3A and 3B, for example. .
  • the present invention can be used for pants-type disposable diapers.
  • Diaper 2 Absorbent body 20: Front body 21: Rear body 22: Crotch part 24: Absorption core 25: Cuff 26: Top sheet 27: Back sheet 3: Diaper body 30: Non-woven fabric 31: Front side body 32: Rear lateral body 3B: Rear waistline part 3F: Front waistline part L: Envelope L1, L2: Full length X: Trunk circumference direction Y: Front-rear direction (flow direction, longitudinal direction)

Abstract

A plurality of elastic members (F1) extending along the front-rear direction are disposed in a crotch portion (22), and the total front-rear-direction length (L2) of the crotch portion (22) of a diaper (1) in a natural state in which no external force is applied to the elastic members (F1) is 50-70% of the total front-rear-direction length (L1) of the crotch portion (22) of the diaper (1) in a deployed state in which the elastic members (F1) are stretched.

Description

パンツ型の使い捨てオムツPants-type disposable diapers
　本発明はパンツ型の使い捨てオムツに関する。 The present invention relates to a pants-type disposable diaper.
　かかるオムツにおいて、クロッチ部の前後方向に沿って伸縮する弾性部材をクロッチ部に配置することで、クロッチ部の密着性を高めることは知られている（特許文献１）。この種のオムツの一例が図４に示される。 In such a diaper, it is known to improve the adhesion of the crotch part by disposing an elastic member that expands and contracts along the front-rear direction of the crotch part in the crotch part (Patent Document 1). An example of this type of diaper is shown in FIG.
　図４において、オムツは着用者の胴の前面を覆う前身頃（ｆｒｏｎｔ　ｂｏｄｙ）２０と、前記胴の背面を覆う後身頃（ｂａｃｋ　ｂｏｄｙ）２１と、前記前身頃２０と前記後身頃２１とを連ね前記着用者の股を覆うクロッチ部２２とを有する。前記オムツは前記前身頃２０および前記後身頃２１の胴回り方向Ｘの両端部Ｅ同士が互いに接合され、前記接合により形成されたウエスト開口ＷＯおよび一対のレッグ開口ＬＯを定義することでパンツ型に形成されている。前記クロッチ部２２には前後方向Ｙに沿って延びる複数本の弾性部材Ｆ１０が配置されている。 In FIG. 4, the diaper includes a front body 20 covering the front of the wearer's torso, a back body 21 covering the back of the torso, the front body 20 and the back body 21. And a crotch portion 22 covering the wearer's crotch. The diaper is formed in a pants shape by defining the waist opening WO and the pair of leg openings LO formed by joining the ends E of the front body 20 and the back body 21 in the waistline direction X to each other. Has been. A plurality of elastic members F <b> 10 extending along the front-rear direction Y are arranged on the crotch portion 22.
ＪＰ２００３－６２００９Ａ（フロントページ）JP2003-62009A (front page)
　しかし、前記先行技術には１つのオムツで着用者の体格（Ｓ，Ｍ，Ｌ等）の許容範囲を拡げることについては開示されていない。 However, the prior art does not disclose expanding the allowable range of the wearer's physique (S, M, L, etc.) with one diaper.
　本発明の目的はサイズの異なる着用者の体格を１つの同じオムツで広範にカバーすることのできるパンツ型の使い捨てオムツを提供することである。 An object of the present invention is to provide a pants-type disposable diaper capable of widely covering the physique of wearers of different sizes with one same diaper.
　本オムツにおいて、クロッチ部には前後方向（長手方向）に沿って延びる複数本の弾性部材が配置され、
　前記弾性部材に外力を負荷していない自然状態のオムツにおける前記クロッチ部の前後方向の全長が、前記弾性部材を伸ばした展開状態のオムツの前記クロッチ部の前記前後方向の全長の５０～７０％であることを特徴とする。 In this diaper, the crotch portion is provided with a plurality of elastic members extending along the front-rear direction (longitudinal direction),
The total length in the front-rear direction of the crotch portion in a natural diaper in which no external force is applied to the elastic member is 50 to 70% of the total length in the front-rear direction of the crotch portion in the deployed diaper with the elastic member extended. It is characterized by being.
　本オムツによれば、前記自然状態のオムツは前記展開状態のオムツに対しクロッチ部の全長が５０～７０％であり、そのため、クロッチ部は着用時に大きく伸張されることができる。したがって、１つのオムツで例えばＳサイズおよびＭサイズの双方を兼用したり、あるいは、ＭサイズおよびＬサイズの双方を兼用し得る。すなわち、１つのサイズのオムツで着用者の体格の許容範囲を広げることができる。 According to the present diaper, the total length of the crotch portion of the diaper in the natural state is 50 to 70% of the diaper in the unfolded state, so that the crotch portion can be greatly stretched when worn. Therefore, for example, one diaper can be used for both S size and M size, or both M size and L size can be used. That is, the tolerance range of a wearer's physique can be expanded with one size diaper.
図１Ａおよび図１Ｂは、それぞれ、本オムツの一実施例を示し、図１Ａは同オムツを展開した正面図、図１Ｂは図１ＡのＩＢーＩＢ線断面図である。1A and 1B each show an embodiment of the present diaper, FIG. 1A is a front view of the diaper developed, and FIG. 1B is a cross-sectional view taken along line IB-IB in FIG. 1A. 図２は同オムツを展開した背面図である。FIG. 2 is a rear view of the diaper. 図３Ａおよび図３Ｂは、それぞれ、同オムツのクロッチ部の自然状態を示す同オムツの概略側面図である。3A and 3B are schematic side views of the diaper showing the natural state of the crotch portion of the diaper, respectively. 図４は公知のオムツの斜視図である。FIG. 4 is a perspective view of a known diaper.
　好ましくは、前記弾性部材は前記前後方向における前記レッグ開口が形成された範囲の全長にわたって設けられ、かつ、前記前身頃および前記後身頃における少なくとも上半分の領域には設けられていない。 Preferably, the elastic member is provided over the entire length of the range in which the leg openings are formed in the front-rear direction, and is not provided in at least the upper half region of the front body and the back body.
　この場合、クロッチ部に配置された弾性部材により、前後の身頃に付した図柄の見栄えを損なうおそれがない。 In this case, there is no possibility of impairing the appearance of the symbols attached to the front and rear bodies by the elastic member arranged in the crotch part.
　好ましくは、前記前身頃から前記後身頃にかけて吸収性本体が配置されており、
　前記吸収性本体の胴回り方向（幅方向）の両縁部には前記前後方向に沿って延びる別の弾性部材が配置されている。 Preferably, an absorbent main body is arranged from the front body to the back body,
Another elastic member extending along the front-rear direction is disposed at both edges in the waistline direction (width direction) of the absorbent main body.
　この場合、本オムツが着用者の体格の違いを広範にカバーした場合に、前記別の弾性部材はレッグ開口から体液が漏れるのを抑制するだろう。 In this case, when the diaper covers a wide range of the wearer's physique, the other elastic member will suppress leakage of body fluid from the leg opening.
１つの前記各実施態様または下記の実施例に関連して説明および／または図示した特徴は、１つまたはそれ以上の他の実施態様または他の実施例において同一または類似な形で、および／または他の実施態様または実施例の特徴と組み合わせて、または、その代わりに利用することができる。 Features described and / or illustrated in connection with one such embodiment or each of the following examples may be in the same or similar form in one or more other embodiments or other examples, and / or It can be utilized in combination with or instead of the features of other embodiments or examples.
本発明は、添付の図面を参考にした以下の好適な実施例の説明からより明瞭に理解されるであろう。しかし、実施例および図面は単なる図示および説明のためのものであり、本発明の範囲を定めるために利用されるべきものではない。本発明の範囲は請求の範囲によってのみ定まる。添付図面において、複数の図面における同一の部品番号は、同一または相当部分を示す。 The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and drawings are for illustration and description only and should not be used to define the scope of the present invention. The scope of the present invention is defined only by the claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.
以下、本発明の実施例にかかるオムツ１の構造の一例が図面にしたがって説明される。 Hereinafter, an example of the structure of the diaper 1 according to an embodiment of the present invention will be described with reference to the drawings.
　図１Ａおよび図１Ｂに示すように、本実施例のオムツ１は、吸収性本体２およびオムツ本体部３を備えている。前記吸収性本体２およびオムツ本体部３は、前身頃２０、後身頃２１およびクロッチ部２２を有している。前身頃２０は着用者の前胴（胴の前部）を覆い胴回り方向Ｘに延びる。後身頃２１は着用者の後胴（胴の後部）を覆い胴回り方向Ｘに延びる。クロッチ部２２は前記前身頃２０と後身頃２１との間の着用者の股間を覆う。 As shown in FIG. 1A and FIG. 1B, the diaper 1 of this embodiment includes an absorbent main body 2 and a diaper main body 3. The absorbent main body 2 and the diaper main body 3 have a front body 20, a rear body 21 and a crotch part 22. The front body 20 covers the wearer's front trunk (front part of the trunk) and extends in the trunk circumference direction X. The rear body 21 covers the wearer's rear trunk (rear part of the trunk) and extends in the trunk circumference direction X. The crotch portion 22 covers the crotch of the wearer between the front body 20 and the back body 21.
　前記クロッチ部２２は前記胴回り方向Ｘに直交する前後方向（縦方向）Ｙに延び前身頃２０および後身頃２１に連なる。前記吸収性本体２は前記胴回り方向Ｘに直交する縦方向（長手方向）Ｙに長い。 The crotch portion 22 extends in the front-rear direction (vertical direction) Y orthogonal to the waistline direction X and continues to the front body 20 and the back body 21. The absorbent main body 2 is long in the longitudinal direction (longitudinal direction) Y perpendicular to the waistline direction X.
　図１Ａにおいて、本オムツ１は、前記クロッチ部２２が前記胴回り方向Ｘに平行な仮想のライン（ｌｉｎｅ）において２つに折られた状態でパンツ型に形成される。すなわち、オムツ本体部３の前身頃２０の胴回り方向Ｘの両端部Ｅと前記後身頃２１の胴回り方向Ｘの両端部Ｅ同士が、図４のように互いに接合される。前記接合によりウエスト開口ＷＯおよびレッグ開口ＬＯが形成される。
　なお、図１Ａの前記端部Ｅの接合部位にはドット模様が付されている。 In FIG. 1A, the diaper 1 is formed in a pants shape in a state where the crotch portion 22 is folded in two along a virtual line parallel to the waistline direction X. That is, both ends E in the waistline direction X of the front body 20 of the diaper main body 3 and both ends E in the waistline direction X of the back body 21 are joined to each other as shown in FIG. A waist opening WO and a leg opening LO are formed by the joining.
In addition, the dot pattern is attached | subjected to the junction part of the said edge part E of FIG. 1A.
　図１Ｂに示すように、前記吸収性本体２には吸収コア（ｃｏｒｅ）２４が設けられている。この吸収コア２４は体液を吸収する。前記吸収コア２４は、トップシート（ｔｏｐ　ｓｈｅｅｔ）２６とバックシート（ｂａｃｋ　ｓｈｅｅｔ）２７との間で挟まれている。各シート２６，２７および吸収コア２４は互いに積層されている。 As shown in FIG. 1B, the absorbent main body 2 is provided with an absorbent core (core) 24. The absorption core 24 absorbs body fluid. The absorbent core 24 is sandwiched between a top sheet 26 and a back sheet 27. The sheets 26 and 27 and the absorbent core 24 are stacked on each other.
　図１Ｂにおいて、前記トップシート２６は透液性の薄い不織布からなり、吸収コア２４の肌面を覆う。このトップシート２６の上にはカフ（ｃｕｆｆ）２５が設けられていてもよい。
　なお、「肌面」とは、オムツの着用時に直接的または間接的に着用者の肌に接する内側の面を意味し、着用者の肌に直接的または間接的に対面する。 In FIG. 1B, the top sheet 26 is made of a liquid-permeable thin nonwoven fabric and covers the skin surface of the absorbent core 24. A cuff 25 may be provided on the top sheet 26.
The “skin surface” means an inner surface that directly or indirectly contacts the wearer's skin when the diaper is worn, and directly or indirectly faces the wearer's skin.
　前記バックシート２７は吸収コア２４の非肌面を覆い、液不透過性の樹脂シートからなる。前記バックシート２７の非肌面には通気性を有する外装不織布３０が接着されて積層されている。前記バックシート２７の非肌面には、図２に示すように、前身頃２０および／または後身頃２１に図柄２８があしらわれている。
　本発明において「非肌面」とは、前記肌面とは反対側のオムツの着用時に着用者の肌に接しない外側の面を意味し、着用者の肌に対面しない。図１Ａにおいて、吸収性本体２は前身頃２０と後身頃２１との間にわたって配置されている。 The back sheet 27 covers the non-skin surface of the absorbent core 24 and is made of a liquid-impermeable resin sheet. A non-skin surface of the back sheet 27 is laminated with an outer nonwoven fabric 30 having air permeability. On the non-skin surface of the back sheet 27, as shown in FIG. 2, a pattern 28 is applied to the front body 20 and / or the back body 21.
In the present invention, the “non-skin surface” means an outer surface that does not contact the wearer's skin when the diaper on the side opposite to the skin surface is worn, and does not face the wearer's skin. In FIG. 1A, the absorbent main body 2 is disposed between the front body 20 and the back body 21.
　前記オムツ本体部３は、それぞれ、前記吸収性本体２から胴回り方向Ｘに突出する一対の前横身頃３１および後横身頃３２を構成する。前記各横身頃３１，３２は前後の胴回り部の一部を構成する。つまり、図１Ａに示すように、前記各横身頃３１，３２は、クロッチ部２２よりも胴回り方向Ｘに突出し、吸収性本体２（クロッチ部２２）よりも胴回り方向Ｘに延び出ている。 The diaper main body 3 constitutes a pair of front side body 31 and rear side body 32 that protrude from the absorbent body 2 in the waistline direction X, respectively. Each of the horizontal bodies 31, 32 constitutes a part of the front and rear waist portions. That is, as shown in FIG. 1A, each of the horizontal bodies 31 and 32 protrudes in the waistline direction X from the crotch portion 22 and extends in the waistline direction X from the absorbent main body 2 (crotch portion 22).
　図２に示すように、前記クロッチ部２２には前後方向Ｙに沿って延びる複数本の弾性部材Ｆ１が互いに平行に配置されている。この弾性部材Ｆ１は前記前後方向Ｙにおける前記レッグ開口ＬＯ（図４）が形成された範囲の全長にわたって設けられ、かつ、前記前身頃２０および前記後身頃２１における少なくとも上半分の領域には設けられていない。
　“前記レッグ開口ＬＯが形成された範囲”とは、たとえば、図２の符号Ｌ１の範囲に相当する。すなわち、図２のようにオムツを展開した状態において、前横身頃３１の中央側の端縁から後横身頃３２の中央側の端縁までの前後方向Ｙの範囲にわたって前記弾性部材Ｆ１が配置される。 As shown in FIG. 2, a plurality of elastic members F <b> 1 extending in the front-rear direction Y are arranged in the crotch portion 22 in parallel with each other. The elastic member F1 is provided over the entire length of the range in which the leg opening LO (FIG. 4) is formed in the front-rear direction Y, and is provided in at least the upper half region of the front body 20 and the back body 21. Not.
The “range in which the leg opening LO is formed” corresponds to, for example, the range indicated by the symbol L1 in FIG. That is, in the state where the diaper is unfolded as shown in FIG. 2, the elastic member F <b> 1 is disposed over the range in the front-rear direction Y from the central edge of the front horizontal body 31 to the central edge of the rear horizontal body 32. The
　前記クロッチ部２２の弾性部材Ｆ１は図１Ｂのバックシート２７と外装不織布３０との間に挟まれている。図２に示すように、クロッチ部２２の弾性部材Ｆ１の前後方向Ｙの両端は、いわゆるスナップバック（ｓｎａｐ　ｂａｃｋ）して収縮した状態となっている。 The elastic member F1 of the crotch portion 22 is sandwiched between the back sheet 27 and the exterior nonwoven fabric 30 in FIG. 1B. As shown in FIG. 2, both ends of the elastic member F1 of the crotch portion 22 in the front-rear direction Y are in a state of being contracted by so-called snap back.
　図１Ａにおいて、前記吸収性本体２の幅方向Ｘの両端部には前記前後方向Ｙに沿って延びる別の弾性部材Ｆ２が配置されている。この別の弾性部材Ｆ２は一対のカフ２５，２５（図１）に配置されていてもよい。 In FIG. 1A, another elastic member F2 extending along the front-rear direction Y is disposed at both ends of the absorbent main body 2 in the width direction X. The other elastic member F2 may be disposed on the pair of cuffs 25, 25 (FIG. 1).
　図２の前身頃２０および前横身頃３１や後身頃２１および後横身頃３２にはウエスト用やヒップ（ｈｉｐ　ａｎｄ　ｂｕｔｔｏｃｋｓ）用の別の弾性部材Ｆ３，Ｆ４がオムツ本体３に直接設けられていてもよい。これらの各弾性部材Ｆ３，Ｆ４は、前後の胴回り部３Ｆ，３Ｂを着用者にフィット（ｆｉｔ）させるためのものである。 In the front body 20, front side body 31, rear body 21 and back side body 32 of FIG. 2, separate elastic members F3 and F4 for waist and hips (hip and buttocks) are directly provided on the diaper body 3. Also good. These elastic members F3 and F4 are for fitting the front and rear waist portions 3F and 3B to the wearer.
　前記ヒップ用の弾性部材Ｆ４は、前記図柄２８が描かれた前身頃２０および／または後身頃２１において、配置されていないか、あるいは、周知の無効化処理がなされていてもよい。無効化とは、弾性部材Ｆ４の張力を無効化することをいい、たとえば、弾性部材Ｆ４を切断してスナップバックさせたり、あるいは、弾性部材Ｆ４を熱や刃物で短く切断することを含む。 The hip elastic member F4 may not be disposed in the front body 20 and / or the back body 21 on which the design 28 is drawn, or may be subjected to a known invalidation process. Disabling means disabling the tension of the elastic member F4, and includes, for example, cutting the elastic member F4 and snapping back, or cutting the elastic member F4 short with heat or a blade.
前記各弾性部材Ｆ１～Ｆ４としては、たとえば、複数本の糸ゴム（ｒｕｂｂｅｒ）や平ゴムまたは熱可塑性樹脂（ホットメルト）または発泡ウレタンを含む糸状又は帯状の材料を採用することができる。 As each of the elastic members F1 to F4, for example, a thread-like or belt-like material containing a plurality of thread rubbers, flat rubbers, thermoplastic resins (hot melt) or urethane foam can be employed.
　吸収性本体２およびクロッチ部２２には、着用者の脚部に沿って括れた脚回り部が形成されてもよい。前記脚回り部や、前記胴回り部３Ｆ，３Ｂの脚回り部に連なる部位には、着用者の脚回りに沿うように、たとえば、糸ゴムなどからなる別の弾性部材（図示せず）が設けられていてもよい。 The absorbent main body 2 and the crotch portion 22 may be formed with a leg-around portion constricted along the wearer's leg portion. Another elastic member (not shown) made of, for example, rubber thread is provided along the leg circumference and the leg circumference of the waist circumference sections 3F and 3B so as to follow the wearer's leg circumference. It may be done.
　図２の前記クロッチ部２２の弾性部材Ｆ１を前後方向１に伸ばした展開状態のオムツの前記クロッチ部２２の全長はＬ１である。
一方、各弾性部材Ｆ１～Ｆ４は前記各弾性部材Ｆ１～Ｆ４に外力を負荷していない自然状態において図４ないし図３Ａのように収縮して、クロッチ部２２の全長はＬ２となる。なお、図３Ａおよび図３Ｂにおいて、前記全長Ｌ２を分かり易くするために、前記全長Ｌ２をオムツ１より下方にズラして図示している。 The total length of the crotch portion 22 of the diaper in a developed state in which the elastic member F1 of the crotch portion 22 of FIG. 2 is extended in the front-rear direction 1 is L1.
On the other hand, the elastic members F1 to F4 contract as shown in FIGS. 4 to 3A in a natural state where no external force is applied to the elastic members F1 to F4, and the total length of the crotch portion 22 becomes L2. 3A and 3B, the full length L2 is illustrated as being shifted downward from the diaper 1 in order to make the full length L2 easy to understand.
　図３Ａの自然状態の前記クロッチ部２２の前記前後方向Ｙの全長Ｌ２は図１Ａの前記展開状態の前記クロッチ部２２の前後方向Ｙの全長Ｌ１の５０～７０％に設定されている。好ましくは、前記全長の比Ｌ２／Ｌ１は５５％～６５％に設定されていてもよい。 The total length L2 in the front-rear direction Y of the crotch portion 22 in the natural state in FIG. 3A is set to 50 to 70% of the total length L1 in the front-rear direction Y of the crotch portion 22 in the expanded state in FIG. 1A. Preferably, the total length ratio L2 / L1 may be set to 55% to 65%.
　例えば、前記全長の比Ｌ２／Ｌ１が６０％に設定されている場合、前記クロッチ部２２は前記展開状態の全長Ｌ１の７０％～９０％程度で着用できるかもしれない。そのため、本オムツを着用できる着用者の体格の許容範囲が拡がるだろう。 For example, when the ratio L2 / L1 of the full length is set to 60%, the crotch portion 22 may be worn at about 70% to 90% of the full length L1 in the deployed state. Therefore, the tolerance of the physique of the wearer who can wear this diaper will be expanded.
　ここで、「外力を負荷していない自然状態」とは、オムツを着用せずに両端部Ｅを持ってオムツを宙に浮かせた状態や、前身頃２０と後身頃２１を重ねた状態でオムツを平らな平面（支持面）に置いた状態などを含み、弾性部材Ｆ１にオムツの自重以外の外力が本質的に負荷されていない状態を意味する。 Here, the “natural state in which no external force is applied” means that the diaper is suspended in the air with both ends E without wearing the diaper, or the front body 20 and the back body 21 are stacked. Means a state in which an external force other than the diaper's own weight is not essentially applied to the elastic member F1.
　また、「クロッチ部の全長」とは、図１Ａおよび図３Ａに示す接合された両端部Ｅを除いた部分の前後方向Ｙの全長を意味する。 Further, the “full length of the crotch portion” means the total length in the front-rear direction Y of the portion excluding the joined end portions E shown in FIGS. 1A and 3A.
　また、自然状態においてクロッチ部２２には弾性部材Ｆ１（図２）による収縮力で小さな多数の襞５（図３Ａ）が形成される。ここで、自然状態のクロッチ部２２の全長Ｌ２は、例えば、図３Ａおよび図３Ｂのように、前記襞５の非肌面の頂点５０を連ねた滑らかな包絡線Ｌの長さＬ２を意味する。 In the natural state, a large number of small ridges 5 (FIG. 3A) are formed in the crotch portion 22 by the contraction force by the elastic member F1 (FIG. 2). Here, the total length L2 of the crotch portion 22 in the natural state means the length L2 of the smooth envelope L connecting the vertices 50 of the non-skin surface of the heel 5 as shown in FIGS. 3A and 3B, for example. .
　以上のとおり、図面を参照しながら好適な実施例を説明したが、当業者であれば、本明細書を見て、自明な範囲で種々の変更および修正を容易に想定するであろう。
　たとえば、オムツは、図柄や模様などを有していなくてもよい。また、図柄や模様を付したシートをバックシートと外装不織布との間に介在させてもよい。
　したがって、そのような変更および修正は、請求の範囲から定まる本発明の範囲内のものと解釈される。 As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
For example, a diaper does not have to have a design or a pattern. Moreover, you may interpose the sheet | seat which attached | subjected the pattern and pattern between the back sheet | seat and the exterior nonwoven fabric.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.
　本発明はパンツ型の使い捨てオムツに利用できる。 The present invention can be used for pants-type disposable diapers.
　１：オムツ
　２：吸収性本体　２０：前身頃　２１：後身頃　２２：クロッチ部　２４：吸収コア
　２５：カフ　２６：トップシート　２７：バックシート
　３：オムツ本体　３０：外装不織布　３１：前横身頃　３２：後横身頃
　３Ｂ：後胴回り部　３Ｆ：前胴回り部
　Ｌ：包絡線　Ｌ１，Ｌ２：全長
　Ｘ：胴回り方向　Ｙ：前後方向（流れ方向、長手方向） 1: Diaper 2: Absorbent body 20: Front body 21: Rear body 22: Crotch part 24: Absorption core 25: Cuff 26: Top sheet 27: Back sheet 3: Diaper body 30: Non-woven fabric 31: Front side body 32: Rear lateral body 3B: Rear waistline part 3F: Front waistline part L: Envelope L1, L2: Full length X: Trunk circumference direction Y: Front-rear direction (flow direction, longitudinal direction)

Claims (3)

  1. 　着用者の胴の前面を覆い胴回り方向に延びる前身頃と、前記胴の背面を覆い前記胴回り方向に延びる後身頃と、前記胴回り方向に直交する前後方向に延び前記前身頃と前記後身頃とを連ね前記着用者の股を覆うクロッチ部とを有し、前記前身頃の前記胴回り方向の両端部と前記後身頃の前記胴回り方向の両端部とが互いに接合され、前記接合により形成されたウエスト開口およびレッグ開口を定義するパンツ型の使い捨てオムツであって、
    　前記クロッチ部には前記前後方向に沿って延びる複数本の弾性部材が配置され、
    　前記弾性部材に外力を負荷していない自然状態のオムツにおける前記クロッチ部の前記前後方向の全長が、前記弾性部材を伸ばした展開状態のオムツの前記クロッチ部の前記前後方向の全長の５０～７０％である、パンツ型の使い捨てオムツ。     A front body that covers the front of the wearer's torso and extends in the waistline direction; a rear body that covers the back of the torso and extends in the waistline direction; and that extends in the front-rear direction perpendicular to the waistline direction A waist opening formed by the joining, the crotch portion covering the crotch of the wearer, and both the end portions in the waist direction of the front body and the both ends in the waist direction of the back body are joined together And a pant-type disposable diaper that defines a leg opening,
    A plurality of elastic members extending along the front-rear direction are disposed in the crotch portion,
    The overall length in the front-rear direction of the crotch portion in a natural diaper in which no external force is applied to the elastic member is 50 to 70 of the overall length in the front-rear direction of the crotch portion in the deployed diaper with the elastic member extended. % Disposable pants-type diapers.
  2. 　請求項１のオムツにおいて、
    　前記弾性部材は前記前後方向における前記レッグ開口が形成された範囲の全長にわたって設けられ、かつ、前記前身頃および前記後身頃における少なくとも上半分の領域には設けられていない、パンツ型の使い捨てオムツ。     In the diaper of claim 1,
    The pants-type disposable diaper, wherein the elastic member is provided over the entire length of the range in which the leg openings are formed in the front-rear direction, and is not provided in at least the upper half region of the front body and the back body.
  3. 　請求項１もしくは２のオムツにおいて、
    　前記前身頃から前記後身頃にかけて吸収性本体が配置されており、
    　前記吸収性本体の前記胴回り方向の両縁部には前記前後方向に沿って延びる別の弾性部材が配置されている、パンツ型の使い捨てオムツ。     In the diaper according to claim 1 or 2,
    An absorbent main body is arranged from the front body to the back body,
    A pants-type disposable diaper in which another elastic member extending along the front-rear direction is disposed at both edges in the waistline direction of the absorbent main body.
PCT/JP2016/080256 2015-10-16 2016-10-12 Underpants-type disposable diaper WO2017065175A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0562227U (en) * 1991-06-28 1993-08-20 ユニ・チャーム株式会社 Worn articles
JPH08322878A (en) * 1995-05-31 1996-12-10 Uni Charm Corp Throw-away diaper
JP2003062009A (en) * 2001-08-23 2003-03-04 Uni Charm Corp Underpants type disposable diaper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1308865C (en) * 1985-09-06 1992-10-20 Andrew E. Huntoon Disposable diaper or incontinence garment with elasticized leg gaskets and absorbent core gathers
US5489282A (en) * 1991-09-11 1996-02-06 Kimberly-Clark Corporation Newborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears
MXPA01004425A (en) * 2001-04-30 2004-09-10 Grupo P I Mabe Sa De C V Disposable absorbent pant having improved fit.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0562227U (en) * 1991-06-28 1993-08-20 ユニ・チャーム株式会社 Worn articles
JPH08322878A (en) * 1995-05-31 1996-12-10 Uni Charm Corp Throw-away diaper
JP2003062009A (en) * 2001-08-23 2003-03-04 Uni Charm Corp Underpants type disposable diaper

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