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JP4679321B2 - Pants-type diapers - Google Patents

Pants-type diapers Download PDF

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Publication number
JP4679321B2
JP4679321B2 JP2005277566A JP2005277566A JP4679321B2 JP 4679321 B2 JP4679321 B2 JP 4679321B2 JP 2005277566 A JP2005277566 A JP 2005277566A JP 2005277566 A JP2005277566 A JP 2005277566A JP 4679321 B2 JP4679321 B2 JP 4679321B2
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Prior art keywords
elastic member
diaper
front body
curved elastic
back body
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Expired - Fee Related
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JP2007082890A (en
Inventor
貴夫 小山
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Kao Corp
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Kao Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region

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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)
  • Orthopedics, Nursing, And Contraception (AREA)

Description

本発明は、パンツ型の使い捨ておむつに関する。   The present invention relates to a pants-type disposable diaper.

筋力の低下した高齢者にとってパンツ型の使い捨ておむつの引き上げ、特に入浴後等の湿潤時の引き上げは、大変な労力を伴うものであり、その改善が求められている。
また、高齢者、特に女性の高齢者においては、加齢に伴って著しい腹囲の増大が見られる。そのため、従来の大人用のパンツ型の使い捨ておむつは、着用者の腹部ないし下腹部回りにきつさを感じさせ易いという問題があった。
For elderly people with weak muscular strength, raising a pants-type disposable diaper, especially when wet after taking a bath, is accompanied by a great deal of labor, and there is a need for improvement.
In addition, in elderly people, particularly female elderly people, a marked increase in abdominal circumference is seen with aging. Therefore, the conventional pants-type disposable diaper for adults has a problem that it is easy to feel tightness around the wearer's abdomen or lower abdomen.

前身頃に配する弾性部材の配置形状を工夫したパンツ型の使い捨ておむつとして、特許文献1には、前身頃及び後身頃に、おむつ幅方向の両端部よりもおむつ幅方向中央部側において股下側に近づくように、それぞれ湾曲させた、前身頃持ち上げ弾性部材及び後身頃持ち上げ弾性部材を設けたものが記載されている。   As a pants-type disposable diaper in which the arrangement shape of the elastic member disposed on the front body is devised, Patent Document 1 discloses that the front body and the back body are on the crotch side at the center side in the diaper width direction rather than at both ends in the diaper width direction. Is provided with a front body lifting elastic member and a rear body lifting elastic member, which are curved so as to approach each other.

また、特許文献2には、弾性材が前後方向中心へ向けて斜めに添設されてなるパンツ型の使い捨ておむつが記載され、特許文献3には、胴回り弾性部材の少なくとも1本は股下部側に変位した形状に配置されているパンツ型の使い捨ておむつが記載されている。   Patent Document 2 describes a pants-type disposable diaper in which an elastic material is attached obliquely toward the center in the front-rear direction. Patent Document 3 discloses that at least one of the waistline elastic members is on the crotch side. A pants-type disposable diaper arranged in a displaced shape is described.

特開平10−127687号公報Japanese Patent Laid-Open No. 10-127687 実開平6−421号公報Japanese Utility Model Publication No. 6-421 特開平9−99006号公報JP-A-9-99006

しかし、特許文献1記載のおむつは、前身頃の腹部相当箇所に、腹部弾性伸縮部材がおむつ横方向に配されており、前身頃持ち上げ弾性部材とこの腹部弾性伸縮部材とが交差して互いの収縮力が干渉し合うため、前身頃を持っておむつを引き上げる際に、その引き上げ力が後身頃持ち上げ弾性部材に十分伝わらない。そのため、おむつの引き上げ性が良好ではない。また、特許文献1記載のおむつは、後身頃持ち上げ弾性部材のおむつ長手方向の最大変位距離が前身頃持ち上げ弾性部材のおむつ長手方向の最大変位距離よりも大きくなされておらず、おむつの引き上げ力が後身頃持ち上げ弾性部材に十分に伝わらないため、この点からも、おむつの引き上げ性が良好ではない。
また、特許文献2の斜めの弾性部材や特許文献3記載の湾曲した弾性部材によっても、おむつの引き上げ性を向上させることはできない。
However, in the diaper described in Patent Document 1, an abdomen elastic elastic member is disposed in the diaper lateral direction at a position corresponding to the abdomen of the front body, and the front body lifting elastic member and the abdomen elastic elastic member intersect to each other. Since the contraction forces interfere with each other, when pulling up the diaper with the front body, the lifting force is not sufficiently transmitted to the elastic member that lifts the back body. For this reason, the pulling property of the diaper is not good. In the diaper described in Patent Document 1, the maximum displacement distance in the diaper longitudinal direction of the elastic member lifting the back body is not larger than the maximum displacement distance in the longitudinal direction of the diaper longitudinally lifting elastic member. Since the back body is not sufficiently transferred to the elastic member, the lifting performance of the diaper is not good from this point.
Moreover, the lifting property of a diaper cannot be improved also by the slanting elastic member of patent document 2, and the curved elastic member of patent document 3.

従って、本発明の目的は、前身頃を持って引き上げることにより、おむつ全体を容易に引き上げることができ、また、優れた装着感を得ることのできるパンツ型おむつを提供することにある。   Accordingly, an object of the present invention is to provide a pant-type diaper that can easily pull up the entire diaper by pulling it up with the front body and can obtain an excellent wearing feeling.

本発明は、前身頃及び後身頃を有し、ウエスト開口部及び一対のレッグ開口部が形成されているパンツ型の使い捨ておむつであって、前身頃及び後身頃それぞれのウエスト開口部近傍には、ウエスト弾性部材がおむつ幅方向に沿って配されており、展開状態における前身頃及び後身頃それぞれのウエスト弾性部材よりもおむつ横方向中央線側に、おむつ幅方向の両端部におけるよりもおむつ幅方向中心部側においておむつ横方向中心線に近づくように、それぞれ湾曲させて、前身頃湾曲弾性部材及び後身頃湾曲弾性部材が配されており、前身頃湾曲弾性部材と後身頃湾曲弾性部材とは、おむつ幅方向中央部付近における相互の最近接部においてもおむつ長手方向に50mm以上離間しており、且つ後身頃湾曲弾性部材のおむつ長手方向の最大変位距離が、前身頃湾曲弾性部材のおむつ長手方向の最大変位距離よりも大きいパンツ型おむつを提供することにより前記目的を達成したものである。   The present invention is a pants-type disposable diaper having a front body and a back body, in which a waist opening and a pair of leg openings are formed, in the vicinity of the waist opening of each of the front body and the back body, The waist elastic member is arranged along the diaper width direction, and the diaper width direction is closer to the center line side of the diaper than the waist elastic members of the front body and the back body in the unfolded state than at both ends of the diaper width direction The front body curved elastic member and the back body curved elastic member are arranged to be curved so as to approach the diaper lateral center line on the center side, and the front body curved elastic member and the back body curved elastic member are: The maximum distance in the diaper longitudinal direction of the back body curved elastic member is also separated by 50 mm or more in the diaper longitudinal direction at the closest part in the vicinity of the central part of the diaper width direction. Position distance is obtained by achieving the above object by providing a larger pant diaper than the maximum displacement distance of the diaper longitudinal direction of the front body curved elastic member.

本発明のパンツ型おむつによれば、前身頃を持って引き上げることにより、おむつ全体を容易に引き上げることができ、また、優れた装着感を得ることができる。   According to the pants-type diaper of the present invention, the entire diaper can be easily pulled up by pulling up the front body, and an excellent wearing feeling can be obtained.

以下、本発明をその好ましい実施形態に基づいて説明する。
本実施形態のパンツ型の使い捨ておむつ1(以下、おむつ1という)は、図1〜4に示すように、成人用のパンツ型おむつであり、図4に示すように、液透過性の表面シート2、液不透過性又は撥水性の裏面シート3及び液保持性の吸収体4を備えている。
おむつ1は、図2に示すように、股下部に配される股下領域C並びにその前後に位置する腹側領域A及び背側領域Bに区分することができる。股下領域Cは、左右両側にレッグ開口部6,6形成用の凹欠部が形成されている領域である。また、本おむつ1は、図2に示すように、おむつ横方向に延びるおむつ中心線CLを境にして前身頃Fと後身頃Gとに区分することができる。
Hereinafter, the present invention will be described based on preferred embodiments thereof.
The pants-type disposable diaper 1 (hereinafter referred to as diaper 1) of the present embodiment is a pants-type diaper for adults as shown in FIGS. 1 to 4, and a liquid-permeable top sheet as shown in FIG. 2. A liquid-impermeable or water-repellent back sheet 3 and a liquid-retaining absorbent 4 are provided.
As shown in FIG. 2, the diaper 1 can be divided into a crotch region C disposed in the crotch part, and a ventral region A and a dorsal region B positioned in front and rear thereof. The crotch region C is a region in which recessed portions for forming the leg openings 6 and 6 are formed on both the left and right sides. Further, as shown in FIG. 2, the present diaper 1 can be divided into a front body F and a back body G with a diaper center line CL extending in the lateral direction of the diaper as a boundary.

おむつ1は、腹側領域Aの両側縁部A1,A1と背側領域Bの両側縁部B1,B1とがヒートシール、高周波シール、超音波シール等の公知の接合手段により接合されて、一対のサイド接合部23,23、ウエスト開口部5及び一対のレッグ開口部6,6が形成されている。   The diaper 1 has a pair of side edges A1, A1 of the ventral region A and side edges B1, B1 of the back region B joined together by known joining means such as heat seal, high frequency seal, ultrasonic seal, etc. Side joint portions 23, 23, a waist opening 5, and a pair of leg openings 6, 6.

おむつ1は、図2及び図4に示すように、吸収性本体10と、該吸収性本体10の外面(着用者とは反対側に向けられる面)側に位置して該吸収性本体10を固定している外装体20とからなる。吸収性本体10は、縦長の形状を有しており、表面シート2、裏面シート3及び吸収体4を具備する。吸収体4は、表面シート2及び裏面シート3間に挟持固定されている。吸収性本体10の長手方向の両側部には、一対の立体ガード11が形成されている。立体ガード11の自由端部には、糸状の弾性部材11aが長手方向に沿って伸長状態で固定されている。吸収性本体10は、その長手方向を、展開且つ伸張状態(図2に示す状態)におけるおむつ長手方向に一致させて、外装体20の中央部に公知の接合手段(接着剤等)により接合されている。また、吸収体4は、図2に示すように、おむつ縦方向(図2の上下方向)と同方向に長い形状を有している。   As shown in FIGS. 2 and 4, the diaper 1 is located on the side of the absorbent main body 10 and the outer surface (surface facing away from the wearer) of the absorbent main body 10. The outer package 20 is fixed. The absorbent main body 10 has a vertically long shape, and includes a top sheet 2, a back sheet 3, and an absorber 4. The absorber 4 is sandwiched and fixed between the top sheet 2 and the back sheet 3. A pair of three-dimensional guards 11 are formed on both sides in the longitudinal direction of the absorbent main body 10. A thread-like elastic member 11a is fixed to the free end of the three-dimensional guard 11 in an elongated state along the longitudinal direction. The absorbent main body 10 is joined to the central portion of the outer package 20 by a known joining means (adhesive or the like) with its longitudinal direction coinciding with the longitudinal direction of the diaper in the unfolded and extended state (the state shown in FIG. 2). ing. Moreover, the absorber 4 has a long shape in the same direction as the diaper vertical direction (up-down direction of FIG. 2), as shown in FIG.

ここで、展開且つ伸長状態とは、サイド接合部を引き剥がして(サイド接合部がない場合は着用者の左右側部に位置するおむつ側部を切断して)、おむつを展開状態とし、その展開状態のおむつを、各部の弾性部材を伸長させて、設計寸法(弾性部材の影響を一切排除した状態で平面状に広げたときの寸法と同じ)となるまで拡げた状態をいう。本明細書に記載の各部の寸法等は、特に説明しない限り、展開且つ伸長状態のおむつについて測定する。また、おむつ横方向中心線CLとは、展開且つ伸張状態における、おむつの長手方向の全長を2等分する線であり、おむつ幅方向に延びている。   Here, the expanded and extended state means that the side joint portion is peeled off (if there is no side joint portion, the diaper side portions located on the left and right side portions of the wearer are cut), and the diaper is in the expanded state. The expanded state of the diaper is a state in which the elastic member of each part is extended to the design dimension (same as the size when it is expanded in a flat state in a state where the influence of the elastic member is completely eliminated). Unless otherwise specified, the dimensions and the like of each part described in the present specification are measured for a diaper in a developed and extended state. The diaper lateral center line CL is a line that bisects the entire length of the diaper in the developed and extended state, and extends in the diaper width direction.

外装体20は、図4に示すように、おむつ1の外表面(着用者とは反対側に向けられる面)を形成している外層シート21と、該外層シート21に隣接してその内側に積層接着された内層シート22とを具備し、これら両シート間に、後述する各部の弾性部材51,61,62,71,72,81,82が、ホットメルト型接着剤等の接着剤を用いて伸張状態で固定されている。   As shown in FIG. 4, the outer package 20 includes an outer layer sheet 21 that forms an outer surface of the diaper 1 (a surface facing away from the wearer), and an outer layer sheet 21 adjacent to the outer layer sheet 21 on the inner side. The inner layer sheet 22 is laminated and bonded, and elastic members 51, 61, 62, 71, 72, 81, and 82 of each part described later use an adhesive such as a hot-melt adhesive between the two sheets. And fixed in an extended state.

図2に示すように、前身頃Fのウエスト開口部近傍5Aには、おむつ横方向に沿ってウエスト弾性部材51が伸張状態で配されている。ウエスト弾性部材51は、前身頃Fの全幅に亘って配されている。ウエスト弾性部材51は、互いに平行に複数本配されている。
また、後身頃Gのウエスト開口部近傍5Bにも、同様に、おむつ幅方向に沿って複数本のウエスト弾性部材51が互いに平行に且つ伸長状態で配されている。そして、これらのウエスト弾性部材51により、ウエスト開口部5の周囲に、実質的にその全周に亘るウエストギャザーが形成されている。
As shown in FIG. 2, a waist elastic member 51 is disposed in a stretched state along the diaper lateral direction in the waist opening vicinity 5 </ b> A of the front body F. The waist elastic member 51 is arranged over the entire width of the front body F. A plurality of waist elastic members 51 are arranged in parallel to each other.
Similarly, in the waist opening vicinity 5B of the back body G, a plurality of waist elastic members 51 are arranged in parallel and extended in the diaper width direction. The waist elastic member 51 forms a waist gather substantially around the entire circumference of the waist opening 5.

また、図2に示すように、おむつ1の前身頃F及び後身頃Gそれぞれのウエスト弾性部材51よりもおむつ横方向中央線CL側(図1に示す状態においては下方側)には、おむつ幅方向の両端部におけるよりもおむつ幅方向中央部側においておむつ横方向中央線CLに近づくように、それぞれ湾曲させて、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72が配されている。
「おむつ幅方向の両端部におけるよりも」とは、「前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72の伸長状態で配されている部位のうち、おむつ幅方向の両端部に最も近接している部位よりも」の意味である。
「おむつ幅方向中央部側において」とは、「おむつ幅方向中央部」という領域を指すのではなく、「おむつ幅方向の両端部」からの方向を指す。
「湾曲」とは「弓形に曲がっている(広辞苑)」ことのみをいうのではなく、直線状、曲線状及びこれらの組み合わせた形状の何れも含み、おむつ幅方向の両端部からおむつ幅方向中央部側に向かって長手方向の位置が股下側へ移動する形状全てを含む。一旦おむつ長手方向両端部に向かった後に股下側へ向かう形状も含まれるが、引き上げ力の伝達性の観点からは、おむつ幅方向の両端部からおむつ幅方向中央部側に向かって長手方向の位置が漸次股下側へ移動する形状が好ましい。
Moreover, as shown in FIG. 2, the diaper width | variety center line CL side (lower side in the state shown in FIG. 1) is a diaper width | variety rather than the waist elastic member 51 of each front body F and back body G of the diaper 1. The front body curved elastic member 71 and the back body curved elastic member 72 are arranged so as to be closer to the diaper lateral center line CL on the diaper width direction central part side than at both ends in the direction.
“Rather than at both ends in the diaper width direction” means “of the portions arranged in the stretched state of the front body curved elastic member 71 and the back body curved elastic member 72 closest to both ends in the diaper width direction”. It means "than the part that is."
“On the diaper width direction central portion side” does not refer to a region called “diaper width direction central portion”, but refers to a direction from “both ends in the diaper width direction”.
“Curved” does not only mean “curved in a bow shape (Kojien)”, but includes any of straight, curved, and combinations thereof, and from the both ends of the diaper width direction to the center of the diaper width direction. All shapes in which the position in the longitudinal direction moves toward the crotch side toward the part side are included. A shape that once goes to both ends of the diaper in the longitudinal direction and then toward the crotch side is included, but from the viewpoint of transmission of the lifting force, the position in the longitudinal direction from both ends in the diaper width direction toward the center in the diaper width direction A shape that gradually moves toward the crotch side is preferable.

前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72は、それぞれ一本のみ配されていても良いが、本実施形態においては、それぞれ複数本配されている。
前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72は、おむつ幅方向中央部付近における相互の最近接部においてもおむつ長手方向に50mm以上離間している。この点において、前身頃及び後身頃の両湾曲弾性部材71,72は、それぞれ、レッグ開口部近傍にレッグ開口部を脚回りにフィットさせるための後述するレッグ弾性部材61,62とは明らかに異なるものである。
Only one front body curved elastic member 71 and rear body curved elastic member 72 may be provided, but in the present embodiment, a plurality of each is provided.
The front body curved elastic member 71 and the back body curved elastic member 72 are separated from each other by 50 mm or more in the longitudinal direction of the diaper even at the closest part in the vicinity of the central part in the diaper width direction. In this regard, the curved elastic members 71 and 72 in the front and back bodies are clearly different from the leg elastic members 61 and 62 described later for fitting the leg openings around the legs in the vicinity of the leg openings, respectively. Is.

おむつ1においては、図3に示すように、後身頃湾曲弾性部材72のおむつ長手方向の最大変位距離Lbが、前身頃湾曲弾性部材71のおむつ長手方向の最大変位距離Laよりも大きい。
前身頃湾曲弾性部材71のおむつ長手方向の最大変位距離Laとは、前身頃湾曲弾性部材71の、おむつ横方向中央線CLに最も近い位置とおむつ横方向中央線CLから最も遠い位置との間の距離(離間距離ともいう)を、おむつ長手方向に沿って測定した距離である。本実施形態のように、前身頃湾曲弾性部材71が複数本存在する場合には、各前身頃湾曲弾性部材71について前記離間距離を測定し、それらの中で最も前記離間距離が長いものの該離間距離を最大変位距離とする。後身頃湾曲弾性部材72のおむつ長手方向の最大変位距離Lbについても同様である。本実施形態においては、図3に示すように、3本の前身頃湾曲弾性部材71が互いに平行に配されており、それらは前記離間距離が等しいため、そのうちの一本の前身頃湾曲弾性部材71aについての離間距離を最大離間距離Laとして示してある。また、3本の後身頃湾曲弾性部材72が互いに平行に配されており、それらは前記離間距離が等しいため、そのうちの一本の後身頃湾曲弾性部材72aについての離間距離を最大離間距離Lbとして示してある。
In the diaper 1, as shown in FIG. 3, the maximum displacement distance Lb in the diaper longitudinal direction of the back body curved elastic member 72 is larger than the maximum displacement distance La in the diaper longitudinal direction of the front body curved elastic member 71.
The maximum displacement distance La in the diaper longitudinal direction of the front body curved elastic member 71 is between the position closest to the diaper lateral center line CL and the position farthest from the diaper lateral center line CL of the front body curved elastic member 71. Is a distance measured along the longitudinal direction of the diaper. When there are a plurality of front body curved elastic members 71 as in the present embodiment, the separation distance is measured for each front body curved elastic member 71, and the separation distance of the longest separation distance is measured. Let the distance be the maximum displacement distance. The same applies to the maximum displacement distance Lb in the longitudinal direction of the diaper of the back body curved elastic member 72. In the present embodiment, as shown in FIG. 3, three front body curved elastic members 71 are arranged in parallel to each other, and they have the same separation distance. The separation distance for 71a is shown as the maximum separation distance La. In addition, since the three back body curved elastic members 72 are arranged in parallel to each other and they have the same separation distance, the separation distance of one of the back body bending elastic members 72a is defined as the maximum separation distance Lb. It is shown.

尚、最大変位距離La,Lbの測定においては、前身頃湾曲弾性部材71又は後身頃湾曲弾性部材72のうち、おむつの収縮に寄与しない部分、例えば、収縮力が発現しない状態にされている部分は、前身頃湾曲弾性部材71又は後身頃湾曲弾性部材72の一部とは考えない。   In the measurement of the maximum displacement distances La and Lb, a portion of the front body curved elastic member 71 or the back body curved elastic member 72 that does not contribute to the contraction of the diaper, for example, a portion that does not express contraction force. Is not considered a part of the front body curved elastic member 71 or the back body curved elastic member 72.

本実施形態のおむつ1によれば、後身頃湾曲弾性部材72の前記最大変位距離Lbが、前身頃湾曲弾性部材71の前記最大変位距離Laよりも大きいため、図5(a)に示すように、前身頃Fの上端部近傍を手に持って引っ張り上げたときに、前身頃湾曲弾性部材71と後身頃湾曲弾性部材72とが、おむつの側縁近傍において略直線状となり、前身頃湾曲弾性部材71の伸縮力が後身頃湾曲弾性部材72に良好に伝達され、それにより、後身頃G側が効率よく引っ張られて上方に向かって引き上げられる。このように、前身頃Fを持って引き上げることにより、おむつ全体を容易に引き上げることができる。
また、おむつ1を着用した状態においては、図5(b)に示すように、弾性部材71,72の収縮作用によって、おむつが、着用者の下腹部及び臀部の形状に沿った形状に変形して、それらに良好にフィットするため、違和感を与えにくく、良好な装着感を与えることができる。
According to the diaper 1 of the present embodiment, since the maximum displacement distance Lb of the back body bending elastic member 72 is larger than the maximum displacement distance La of the front body bending elastic member 71, as shown in FIG. When the vicinity of the upper end portion of the front body F is pulled up with the hand, the front body bending elastic member 71 and the back body bending elastic member 72 become substantially straight in the vicinity of the side edge of the diaper, and the front body bending elasticity The elastic force of the member 71 is transmitted well to the back body bending elastic member 72, whereby the back body G side is efficiently pulled and pulled upward. Thus, by pulling up with the front body F, the whole diaper can be pulled up easily.
In the state where the diaper 1 is worn, the diaper is deformed into a shape along the shape of the lower abdomen and the buttocks of the wearer by the contracting action of the elastic members 71 and 72 as shown in FIG. And since it fits them well, it is hard to give a sense of incongruity and can give a good wearing feeling.

また、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72がそれぞれおむつ幅方向に向かうに連れておむつ横方向中央線CLに近づくように湾曲している。これらの弾性部材71,72は、着用者の腹部及び臀部の比較的下部にフィットしやすく、特に高齢者においては、図5(b)に示すように、腹部及び臀部それぞれの最大突出部F1及び臀部の最大突出部G1それぞれを下方から支持するように、おむつをフィットさせることができ、従来の大人用のパンツ型の使い捨ておむつにおいて発生していた腹部や臀部の過度の締め付けを防止しつつ、おむつの側部においては、着用者に良好にフィットさせることができる。   Further, the front body curved elastic member 71 and the back body curved elastic member 72 are curved so as to approach the diaper lateral center line CL in the diaper width direction. These elastic members 71 and 72 are easy to fit in the lower part of the wearer's abdomen and buttocks, and particularly for elderly people, as shown in FIG. The diaper can be fitted so as to support each of the maximum protrusions G1 of the buttocks from below, preventing excessive tightening of the abdomen and buttocks that occurred in conventional adult pants-type disposable diapers, In the side part of a diaper, it can fit a wearer favorably.

前身頃湾曲弾性部材71の前記最大変位距離Laは、引き上げ力の伝達性および下腹部形状へのフィット性の観点から20〜90mmが好ましく、40〜60mmがより好ましい。後身頃湾曲弾性部材72の前記最大変位距離Lbは、引き上げ力の被伝達性および臀部形状へのフィット性の観点から105〜175mmが好ましく、125〜145mmがより好ましい。前身頃および後身頃の最大離間距離の差(Lb−La)は、引き上げ力の伝達性の観点から50〜120mmが好ましく、70〜100mmがより好ましい。   The maximum displacement distance La of the front body curved elastic member 71 is preferably 20 to 90 mm, and more preferably 40 to 60 mm, from the viewpoints of the transferability of the lifting force and the fit to the lower abdomen shape. The maximum displacement distance Lb of the back body curved elastic member 72 is preferably 105 to 175 mm, and more preferably 125 to 145 mm, from the viewpoint of the transferability of the lifting force and the fit to the heel shape. The difference in the maximum separation distance between the front body and the back body (Lb−La) is preferably 50 to 120 mm, and more preferably 70 to 100 mm, from the viewpoint of transferability of the lifting force.

本実施形態のおむつ1においては、図2に示すように、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72は、それぞれおむつの幅方向に分割された状態に配されている。即ち、両弾性部材71,72は、おむつ横方向中央部で非連続となっている。
前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72は、それぞれ分割された各部分の平面視形状が、直線状、曲線状及びこれらの組み合わた形状の何れであっても良いが、本実施形態におけるように曲線状であることが好ましく、サインカーブの1/2〜1/4周期分の曲線状であることがより好ましい。
前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72は、左右の分割部分を合わせた形状が、サインカーブ一周期分の形状と略同一の形状とされていることが、引き上げ容易性及び高齢者体形へのフィット性の観点から好ましい。
In the diaper 1 of this embodiment, as shown in FIG. 2, the front body curved elastic member 71 and the back body curved elastic member 72 are each arranged in a state of being divided in the width direction of the diaper. That is, the elastic members 71 and 72 are discontinuous at the central portion in the diaper lateral direction.
In the front body bending elastic member 71 and the back body bending elastic member 72, the shape of each of the divided parts may be any of a linear shape, a curved shape, and a combination thereof. Is preferably a curved line, and more preferably a curved line corresponding to ½ to ¼ period of a sine curve.
The front body curved elastic member 71 and the back body curved elastic member 72 have a shape in which the left and right divided parts are combined substantially the same as the shape of one cycle of the sine curve. It is preferable from the viewpoint of fit to the body shape.

本実施形態のおむつ1における、着用者の脚周りに配される部位であるレッグ部60それぞれには、第1及び第2のレッグ弾性部材61,62が配されている。これらのレッグ弾性部材61,62は、股下領域において重なるか又は近接しており、これらの弾性部材により、レッグ開口部6それぞれの開口周縁部に、実質的にその全周に亘って実質的に連続するレッグギャザーが形成されている。
レッグ部のフィット性をレッグ弾性部材により向上させつつ、引き上げ性を阻害しないようにする観点から、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72とこれらのレッグ弾性部材61,62とは交差していないことが好ましい。
In the diaper 1 of the present embodiment, first and second leg elastic members 61 and 62 are disposed on each leg portion 60 which is a portion disposed around the legs of the wearer. These leg elastic members 61 and 62 overlap or are close to each other in the crotch region, and by these elastic members, substantially the entire circumference of each leg opening 6 is substantially overlapped with each other. A continuous leg gather is formed.
The front body curved elastic member 71 and the back body curved elastic member 72 and these leg elastic members 61 and 62 intersect from the viewpoint of improving the fit of the leg portion by the leg elastic member and not hindering the pulling performance. Preferably not.

また、レッグ弾性部材61,62は脚回りの防漏性を向上させるために、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72それぞれよりも高い収縮力が発生するように配置することが好ましい。また、レッグ弾性部材は、着用者が装着時に前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72と混同し、足の入れ場所に迷うことが無いように、前身頃湾曲弾性部材71又は後身頃湾曲弾性部材72と、色や幅、それらの組み合わせ等によって、視覚的に識別可能になされていることが好ましい。また、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72とは、不織布間に挟まれて保持されていることが、収縮力を阻害せず優れた引き上げ性を達成でき、かつ、通気性、柔軟性にも優れて装着感も向上するため好ましい。   In addition, the leg elastic members 61 and 62 are preferably arranged so as to generate a higher contraction force than the front body curved elastic member 71 and the back body curved elastic member 72 in order to improve leakage prevention around the legs. . Further, the leg elastic member is confused with the front body curved elastic member 71 and the back body curved elastic member 72 when worn by the wearer, and the front body curved elastic member 71 or the back body so as not to get lost in the place where the foot is put. It is preferable that the curved elastic member 72 is visually identifiable by the color, width, combination thereof, and the like. Further, the front body curved elastic member 71 and the back body curved elastic member 72 are sandwiched and held between the nonwoven fabrics, can achieve excellent pullability without impairing the contraction force, and have air permeability, It is preferable because it is excellent in flexibility and improved in wearing feeling.

本おむつ1における複数本の前身頃湾曲弾性部材71,71,71同士は相互に交差しないように配されており、複数本の後身頃湾曲弾性部材72,72,72同士も相互に交差しないように配されている。これにより、前身頃湾曲弾性部材71の伸縮力を後身頃湾曲弾性部材72に一層効率よく伝達することができる。交差している場合には、交差部で異なる方向の力が干渉し合うことで、引き上げ方向の力が緩和され、効率的な引き上げ力の伝達が阻害されてしまう。また、交差しないことで、均一の装着感を達成でき、装着感の向上の観点からも好ましい。
尚、「交差しない」とは、互いの弾性部材が常に所定間隔を開けて位置することを指す。間隔は、股下方向に向かって大きくなっても良いし、小さくなっても良いが、単位面積当たりの装着圧を一定にして快適な装着感を達成するためには、間隔は一定距離を保つことが好ましい。
The plurality of front body curved elastic members 71, 71, 71 in the diaper 1 are arranged so as not to cross each other, and the plurality of back body curved elastic members 72, 72, 72 also do not cross each other. It is arranged in. Thereby, the expansion / contraction force of the front body curved elastic member 71 can be more efficiently transmitted to the back body curved elastic member 72. When intersecting, forces in different directions interfere with each other at the intersecting portion, so that the force in the pulling direction is relaxed and efficient transmission of the pulling force is hindered. Moreover, by not intersecting, a uniform wearing feeling can be achieved, which is preferable from the viewpoint of improving the wearing feeling.
Note that “does not intersect” means that the elastic members are always located at a predetermined interval. The interval may be increased or decreased in the crotch direction, but in order to achieve a comfortable wearing feeling with a constant mounting pressure per unit area, the interval should be kept constant. Is preferred.

本実施形態のおむつ1における前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72は、それぞれ、おむつ幅方向に分割された状態に配されており、吸収体4の幅方向中央部と重なる部分には、これらの弾性部材71,72が存在していない。
吸収体の一部と重なる部分、特に吸収体の幅方向中央部と重なる部分に弾性部材71,72を存在させないことにより、肌と吸収体との過度の摩擦により引き上げ性が阻害されることを防止して、引き上げ容易性を向上させることができる。吸収体の一部と重なる部分に弾性部材71,72を存在させない構成に代えて、吸収体の一部と重なる部分における弾性部材71,72を収縮力を発現しない状態とすることによっても同様の効果が得られる。前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72を収縮力を発現しない状態とする方法としては、弾性部材71,72を細かく切断する方法、外装体20に挟持された弾性部材71,72を、その一部において接着剤等の接合手段で外装体20に接合せずにおき、その非接合部位において弾性部材71,72を切断する方法、が挙げられる。
The front body curved elastic member 71 and the back body curved elastic member 72 in the diaper 1 of the present embodiment are each arranged in a state of being divided in the diaper width direction, and are overlapped with the central portion in the width direction of the absorbent body 4. These elastic members 71 and 72 do not exist.
By not having the elastic members 71 and 72 in a portion that overlaps with a part of the absorbent body, particularly in a portion that overlaps the central portion in the width direction of the absorbent body, the pullability is inhibited by excessive friction between the skin and the absorbent body. It is possible to improve the ease of pulling up. Instead of the configuration in which the elastic members 71 and 72 do not exist in a portion overlapping with a part of the absorber, the same can be achieved by setting the elastic members 71 and 72 in a portion overlapping with a part of the absorber to a state that does not express contraction force. An effect is obtained. Examples of a method for bringing the front body curved elastic member 71 and the back body curved elastic member 72 into a state in which the contraction force is not expressed include a method of finely cutting the elastic members 71, 72, and elastic members 71, 72 sandwiched between the exterior bodies 20. A method in which a part of the elastic members 71 and 72 is cut at the non-bonded portion without being bonded to the exterior body 20 by a bonding means such as an adhesive.

弾性部材71,72が存在しない部分又は弾性部材71,72が収縮力を発現しない部分は、吸収体の全幅の1/2以上であることが好ましく、全幅で収縮しないことがより好ましい。ここでいう全幅は、前身頃湾曲弾性部材71については、おむつの長手方向において、前身頃湾曲弾性部材71の左右に分割された各部分それぞれのおむつ幅方向中央側の端部の位置と同位置における吸収体4の幅であり、後身頃湾曲弾性部材72については、おむつの長手方向において、後身頃湾曲弾性部材72の左右に分割された各部分それぞれのおむつ幅方向中央側の端部の位置と同位置における吸収体4の幅である。   The part where the elastic members 71 and 72 do not exist or the part where the elastic members 71 and 72 do not express the contraction force is preferably 1/2 or more of the entire width of the absorber, and more preferably does not contract with the full width. The full width here is the same as the position of the end of the front side curved elastic member 71 in the longitudinal direction of the diaper in the longitudinal direction of the diaper width direction of each part divided into the left and right sides of the front body curved elastic member 71. In the longitudinal direction of the diaper, the position of the end portion of the center part in the diaper width direction of each part divided into the left and right sides of the back body curved elastic member 72 in the longitudinal direction of the diaper And the width of the absorber 4 at the same position.

本実施形態のおむつ1においては、図4に示すように、吸収体4を含む吸収性本体10の長手方向の両側縁それぞれから所定幅の部分10S,10Sが、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72が挟まれて固定されている外装体20の肌当接面側に接合されておらず、当該部分10S,10Sに対応する外装体20の部分10S‘、10S’は、吸収体4を含む吸収性本体10から独立して収縮可能となっている。かかる構成により、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72が収縮可能な領域を比較的広く確保しつつ、吸収体4のよれ等を防止することができる。
所定幅の部分10S(=10S’)の幅は、例えば10〜30mm程度であることが好ましい。
In the diaper 1 of the present embodiment, as shown in FIG. 4, portions 10 </ b> S and 10 </ b> S having predetermined widths from both side edges in the longitudinal direction of the absorbent main body 10 including the absorbent body 4 are the front body curved elastic member 71 and the rear body. The parts 10S ′ and 10S ′ of the exterior body 20 corresponding to the portions 10S and 10S are not joined to the skin contact surface side of the exterior body 20 to which the body-curved elastic member 72 is sandwiched and fixed. It can be contracted independently from the absorbent main body 10 including the body 4. With such a configuration, it is possible to prevent the absorber 4 from being swayed while ensuring a relatively wide area in which the front body curved elastic member 71 and the back body curved elastic member 72 can contract.
The width of the predetermined width portion 10S (= 10S ′) is preferably about 10 to 30 mm, for example.

本実施形態のおむつ1においては、図5に示すように、前身頃湾曲弾性部材71と後身頃湾曲弾性部材72とが、おむつの側部において、相互に重なっている。相互に重なっていることにより、両弾性部材が実質的に連続している。両弾性部材71,72が相互に重なっている構成に代えて、両弾性部材がおむつ側部において相互に近接して実質的に連続している構成としても同様の効果が得られる。両弾性部材71,72が、おむつの側部において相互に重なっているか、近接して実質的に連続していることによって、前身頃湾曲弾性部材71の収縮力が後身頃湾曲弾性部材72に伝達されやすく、引き上げ容易性が向上する。
実質的に連続している場合としては、弾性部材71及び弾性部材72の伸縮性を有する部分が、それぞれ、おむつ側縁近傍に配置しており、おむつ内側縁から各弾性部材71,72それぞれの伸縮性を有する部分までのおむつ横方向距離は0〜30mmである場合が挙げられる。この距離は0〜10mmであることが好ましく、0mmであることがより好ましい。おむつ内側縁とは、おむつ側縁が接合(サイドシール)されている部分のおむつ内方よりの縁部をさす。
弾性部材71,72がそれぞれ複数配されている場合、個々の弾性部材のいずれか1本以上同士が重なったり近接して実質的に連続していることが好ましく、個々の弾性部材の全てが互いにおむつ側部で互いに接合されていることが引き上げ容易性の観点からより好ましい。ここでいう「接合」とは、前後の弾性部材同士が、熱融着や接着剤等の手段により連結されていることを表すが、必ずしも、おむつ長手方向の位置が完全に一致している必要は無く、おむつ長手方向における弾性部材同士間の距離が0〜10mmの範囲となっている場合も含む。引き上げ力の伝達性の観点からは前記距離は0〜3mmであることが好ましく、0mmであることが最も好ましい。弾性部材71,72の各々の本数は互いに等しいことが引き上げ容易性の観点から最も好ましい。
In the diaper 1 of the present embodiment, as shown in FIG. 5, the front body curved elastic member 71 and the back body curved elastic member 72 overlap each other at the side part of the diaper. By overlapping each other, both elastic members are substantially continuous. In place of the configuration in which the two elastic members 71 and 72 overlap each other, the same effect can be obtained by a configuration in which the two elastic members are substantially adjacent to each other in the diaper side portion. The elastic force of the front body bending elastic member 71 is transmitted to the back body bending elastic member 72 by the two elastic members 71 and 72 being overlapped with each other on the side of the diaper or being substantially adjacent to each other. It is easy to be lifted and the easiness of lifting is improved.
In a substantially continuous case, the elastic member 71 and the elastic member 72 have elastic portions arranged in the vicinity of the diaper side edge, and the respective elastic members 71 and 72 are arranged from the diaper inner edge. The case where the diaper horizontal direction distance to the part which has a stretching property is 0-30 mm is mentioned. This distance is preferably 0 to 10 mm, and more preferably 0 mm. The inner edge of the diaper refers to the edge from the inside of the diaper where the diaper side edge is joined (side seal).
In the case where a plurality of elastic members 71 and 72 are provided, it is preferable that one or more of the individual elastic members overlap each other or are substantially adjacent to each other, and all of the individual elastic members are mutually connected. It is more preferable from the viewpoint of easiness of pulling up that the diaper side portions are joined to each other. The term “joining” as used herein means that the front and rear elastic members are connected by means such as heat fusion or adhesive, but the position in the longitudinal direction of the diaper is not necessarily the same. There is also a case where the distance between the elastic members in the longitudinal direction of the diaper is in the range of 0 to 10 mm. The distance is preferably 0 to 3 mm, and most preferably 0 mm, from the viewpoint of transmission of lifting force. The number of the elastic members 71 and 72 is most preferably equal to each other from the viewpoint of ease of pulling up.

本実施形態のおむつ1においては、前身頃Fにおけるウエスト弾性部材51と前身頃湾曲弾性部材71との間におむつ幅方向に沿って前身頃第2弾性部材81が配されており、後身頃Gにおけるウエスト弾性部材51と後身頃湾曲弾性部材72との間におむつ幅方向に沿って後身頃第2弾性部材82が配されている。そして、前身頃湾曲弾性部材71は、前身頃第2弾性部材81と交差しておらず、後身頃湾曲弾性部材72も後身頃第2弾性部材82と交差していない
これらの第2弾性部材81,82は、着用時に着用者の腸骨の高さと略同じ高さに位置するように設計されており、これらの弾性部材81,82が腸骨に引っかかるために効果的にズレ落ちが防止される。
他方、これらの第2弾性部材81,82の各々が、前身頃湾曲弾性部材71及び後身頃湾曲弾性部材72と交差しないことにより、前身頃湾曲弾性部材71の伸縮力を後身頃湾曲弾性部材72に効率よく伝達することが可能である。「交差した場合」には、交差部で異なる方向の力が干渉しあうことで引き上げ方向の力が緩和され、効率的な引き上げ力の伝達が阻害されてしまう。また、「交差しない」ことにより、均−の装着圧を、達成できるため(伸縮部材の収縮力が集中してしまうための過度のしめつけを防止できるため)、装着感の観点からも好ましい効果を発揮する。
In the diaper 1 of the present embodiment, the front body second elastic member 81 is disposed along the diaper width direction between the waist elastic member 51 and the front body curved elastic member 71 in the front body F, and the back body G A rear body second elastic member 82 is disposed along the diaper width direction between the waist elastic member 51 and the back body curved elastic member 72. The front body curved elastic member 71 does not intersect with the front body second elastic member 81, and the back body curved elastic member 72 does not intersect with the back body second elastic member 82. These second elastic members 81 , 82 are designed to be positioned at substantially the same height as the wearer's iliac when worn, and these elastic members 81, 82 are caught on the iliac so that slippage is effectively prevented. The
On the other hand, each of these second elastic members 81, 82 does not intersect the front body curved elastic member 71 and the back body curved elastic member 72, so that the stretching force of the front body curved elastic member 71 is applied to the back body curved elastic member 72. Can be transmitted efficiently. In the case of “crossing”, forces in different directions interfere with each other at the intersection, so that the force in the pulling direction is relaxed, and efficient transmission of the pulling force is hindered. In addition, by “not intersecting”, a uniform mounting pressure can be achieved (because excessive shrinkage due to the concentration of the contracting force of the elastic member can be prevented). Demonstrate.

尚、前身頃におけるウエスト弾性部材51と前身頃第2弾性部材81との間に形態的な差がない場合、大人用のおむつの場合には、ウエスト開口部の周縁端から幅40mmの範囲内に配された弾性部材をウエスト弾性部材とし、それより下方に配された弾性部材を、前身頃第2弾性部材82とする。後身頃におけるウエスト弾性部材51と後身頃第2弾性部材82との区別も同様である。幼児用おむつの場合は、前記の40mmを30mmに変更する。   When there is no morphological difference between the waist elastic member 51 and the front body second elastic member 81 in the front body, in the case of an adult diaper, the width is within a range of 40 mm from the peripheral edge of the waist opening. The elastic member disposed in the upper part is referred to as a waist elastic member, and the elastic member disposed below the elastic member is referred to as a front body second elastic member 82. The distinction between the waist elastic member 51 and the back body second elastic member 82 in the back body is the same. In the case of infant diapers, the 40 mm is changed to 30 mm.

本実施形態のおむつ1においては、前身頃湾曲弾性領域よりも後身頃湾曲弾性領域の方が伸長応力が高くなっている。おむつの引き上げ時にはおむつの前身頃側を持つことが多いため、前身頃を引き上げる力は着用者の臀部方向に向かうにつれ緩和され小さくなる。 その結果、引き上げ力が臀部まで十分伝わらず、臀部部分が弛んだままになりやすいが、このように、後身頃湾曲弾性領域の伸長応力を高くすることで、引き上げ時の力が緩和されたとしても臀部部分に十分な引き上げ力が発揮されるので、引き上げ容易性及びフィット性を確実に向上させることができる。   In the diaper 1 of the present embodiment, the extension stress is higher in the back body curved elastic region than in the front body curved elastic region. Since the front body side of the diaper is often held when the diaper is pulled up, the force to pull up the front body is relaxed and becomes smaller toward the wearer's buttocks. As a result, the pulling force is not sufficiently transmitted to the buttocks, and the buttocks part is likely to remain loose.As described above, by increasing the elongation stress in the curved elastic region of the back body, the pulling force is alleviated. In addition, since a sufficient lifting force is exerted on the buttocks, easiness of lifting and fit can be improved with certainty.

前身頃湾曲弾性領域とは、前身頃湾曲弾性部材71を展開状態のおむつの長手方向に沿って上下10mm移動させた際に描かれる仮想線に挟まれたおむつ全幅にわたる領域をさす。前身頃湾曲弾性部材71が複数本存在する場合は、図7に示すように、最もウエスト側に位置する前身頃湾曲弾性部材71aをウエスト側に10mm移動した仮想線LUと、最も股下側に位置する前身頃湾曲弾性部材71bを股下側に10mm移動した仮想線LDとで挟まれた領域(図7中の斜線部)を前身頃湾曲弾性領域とする。前身頃湾曲弾性領域には、弾性材のみならず不織布やフィルム、吸収材等おむつを形成する各種部材が含まれる。
前身頃湾曲弾性部材71が、吸収体の幅方向中央部と重なる部分には存在しないか又は該吸収体の幅方向中央部と重なる部分においては収縮力を発現しないようになされている場合には、前身頃湾曲弾性部材71が存在しない部分、または収縮力を発現しない部分に幅方向に略平行に前身頃湾曲弾性部材71が配置されていると仮定し左右の前身頃湾曲弾性部材71同士を接合する。その後に上記同様に仮想線を引く。後身頃湾曲弾性領域についても、前身頃湾曲弾性領域と同じ要領で定義する。
後身頃湾曲弾性領域および前身頃湾曲弾性領域の伸長応力を高くする手段(方法)としては、後身頃湾曲弾性領域を形成する弾性部材の本数を多くする、伸長倍率を高くする、伸長応力の大きい弾性材を用いる等が挙げられる。
前身頃湾曲弾性部材71の本数は、引き上げ容易性、高齢者体型へのフィット性の観点から2本〜6本が好ましい。2本以上とすることにより、引き上げ力を十分に伝達でき、引き上げ容易性を確実に向上させることができ、6本以下とすることにより、各弾性部材の応力が低減して十分な引き上げ力を伝達できなくなることを防止し、引き上げ容易性を確実に向上させることができる。
The front body curved elastic region refers to a region extending over the entire width of the diaper sandwiched between imaginary lines drawn when the front body curved elastic member 71 is moved up and down 10 mm along the longitudinal direction of the developed diaper. When there are a plurality of front body curved elastic members 71, as shown in FIG. 7, an imaginary line LU obtained by moving the front body curved elastic member 71 a located on the most waist side by 10 mm toward the waist side and a position located on the most crotch side A region (hatched portion in FIG. 7) sandwiched between the imaginary line LD obtained by moving the front body curved elastic member 71b to the crotch side by 10 mm is defined as a front body curved elastic region. The front body curved elastic region includes not only an elastic material but also various members that form a diaper such as a nonwoven fabric, a film, and an absorbent material.
When the front-body curved elastic member 71 does not exist in a portion overlapping the central portion in the width direction of the absorber, or in a portion overlapping the central portion in the width direction of the absorber, the contraction force is not expressed. Assuming that the front body bending elastic member 71 is disposed substantially parallel to the width direction in a portion where the front body bending elastic member 71 does not exist or a portion where contraction force is not expressed, the left and right front body bending elastic members 71 are Join. Thereafter, an imaginary line is drawn as described above. The back body curved elastic region is also defined in the same manner as the front body curved elastic region.
As means (methods) for increasing the elongation stress of the back body curved elastic region and the front body curved elastic region, the number of elastic members forming the back body curved elastic region is increased, the expansion magnification is increased, and the elongation stress is large. For example, an elastic material is used.
The number of the front body curved elastic members 71 is preferably 2 to 6 from the viewpoints of ease of pulling up and fitting to the elderly body shape. By using 2 or more, the lifting force can be transmitted sufficiently and the easiness of lifting can be improved reliably. By using 6 or less, the stress of each elastic member is reduced and sufficient lifting force is obtained. It is possible to prevent the transmission from becoming impossible, and to improve the easiness of lifting.

〔前身頃湾曲弾性領域又は後身頃湾曲弾性領域の伸長応力の測定方法〕
腹側領域と背側領域の接合部分(サイド接合部)を剥がし、おむつを展開状態にした後、前身頃湾曲弾性領域および後身頃湾曲弾性領域を切り出してサンプルとする。前身頃湾曲弾性部材及び後身頃湾曲弾性部材以外の弾性部材(前身頃湾曲弾性部材でも後身頃湾曲弾性部材でもない弾性部材)が含まれる場合は、それらを取り除くか又は切断して、それら弾性部材の伸長応力が発現しないよう処理する。
このサンプルを、水平な面上に肌当接部分の外面が該水平な面に当接するように載置し、自然に収縮した状態における該サンプルの幅方向(=おむつ幅方向)の両端部間の長さを測定し、その長さから20mmを引いた値を自然長とする。自然長は、サンプルの幅方向両側縁部における上縁部と下縁部の長手方向中点を結んだ線の長さを測定し、その値から20mmを引く。
そして、そのサンプルをたるませて、テンシロン引っ張り試験機〔(株)オリエンテック社製、「RTC−1150」〕のチャック間に固定し(サンプルの幅方向両端部から10mm幅方向内側に入る領域をチャックで留める)、その時の荷重をゼロとする。その後速度300mm/minで、おむつ幅方向と同じ方向に自然長の1.5倍になるまで伸長させたときの応力を伸長応力とする。
[Method for measuring elongation stress in front body curved elastic region or back body curved elastic region]
After peeling the joint part (side joint part) of the ventral region and the dorsal region and putting the diaper into an unfolded state, the front body curved elastic region and the back body curved elastic region are cut out and used as samples. When elastic members other than the front body curved elastic member and the back body curved elastic member (an elastic member that is neither the front body curved elastic member nor the back body curved elastic member) are included, these elastic members are removed or cut. It is processed so that the elongation stress of.
This sample is placed on a horizontal surface so that the outer surface of the skin contact portion is in contact with the horizontal surface, and between the both ends in the width direction (= diaper width direction) of the sample in a naturally contracted state The length obtained by subtracting 20 mm from the length is taken as the natural length. The natural length is determined by measuring the length of the line connecting the longitudinal midpoints of the upper edge and the lower edge at both side edges in the width direction of the sample, and subtracting 20 mm from that value.
Then, the sample is slackened and fixed between chucks of a Tensilon tensile tester [Orientec Co., Ltd., “RTC-1150”] (the region that enters the 10 mm width direction inside from both ends in the width direction of the sample) The load at that time is zero. Thereafter, the stress when the film is stretched at a speed of 300 mm / min until it becomes 1.5 times the natural length in the same direction as the diaper width direction is defined as an elongation stress.

また、本実施形態のおむつ1においては、前身頃湾曲弾性領域よりも前身頃第2弾性領域の伸長応力が高く、後身頃湾曲弾性領域よりも後身頃第2弾性領域の伸長応力が高くなっている。
前身頃湾曲弾性領域及び後身頃湾曲弾性領域よりも、腸骨近傍に位置する前身頃第2弾性領域及び後身頃第2弾性領域の伸長応力の方を高くすることにより、腸骨に該弾性部材が引っかかやすくなり、効率的にズレ落ちを防止することができる。また、前身頃第2弾性領域及び後身頃第2弾性領域による締め付けによりズレ落ちが防止されるので、前身頃湾曲弾性領域及び後身頃湾曲弾性領域の伸長応力を低減でき、前方に大きく突出する下腹部や後方に突出する臀部に対し、従来に比べて小さい装着圧が達成でき、その結果、下腹部及び臀部の違和感が一層低減し、より優れた装着感を達成することができる。
ズレ落ちを防止し、かつ優れた装着感を達成する観点から前身頃第2弾性領域及び後身頃第2弾性領域の伸長応力は互いに等しいことが好ましい。
伸長応力の測定方法は、前身頃湾曲弾性領域及び後身頃湾曲弾性領域の伸長応力と同様の方法で行うが、前身頃第2弾性領域及び後身頃第2弾性領域の伸長長さ(伸長応力を測定するときの長さ)を、前身頃湾曲弾性領域及び後身頃湾曲弾性領域の自然長の1.5倍とするところのみが異なる。前身頃第2弾性領域及び後身頃第2弾性領域それぞれは、前身頃湾曲弾性領域と同じ要領で定義される。
Moreover, in the diaper 1 of this embodiment, the elongation stress of the front body second elastic region is higher than the front body curved elastic region, and the elongation stress of the rear body second elastic region is higher than the rear body curved elastic region. Yes.
By making the elongation stress of the front body second elastic region and the back body second elastic region located in the vicinity of the iliac higher than the front body curved elastic region and the back body curved elastic region, the elastic member is attached to the iliac bone. It becomes easy to be scratched, and the slippage can be prevented efficiently. Further, since the slippage is prevented by tightening by the second elastic region of the front body and the second elastic region of the back body, the extension stress of the front body curved elastic region and the back body curved elastic region can be reduced, and the bottom protruding greatly forward With respect to the abdomen and the buttocks protruding rearward, a smaller mounting pressure can be achieved as compared with the conventional case. As a result, the discomfort in the lower abdomen and the buttocks is further reduced, and a more excellent wearing feeling can be achieved.
From the viewpoint of preventing slipping off and achieving an excellent wearing feeling, it is preferable that the elongation stress of the front body second elastic region and the back body second elastic region is equal to each other.
The elongation stress is measured by the same method as the elongation stress of the front body curved elastic region and the back body curved elastic region, but the elongation lengths of the front body second elastic region and the back body second elastic region (extensive stress is defined as The only difference is that the measurement length is 1.5 times the natural length of the front body curved elastic region and the back body curved elastic region. Each of the front body second elastic region and the back body second elastic region is defined in the same manner as the front body curved elastic region.

本実施形態のおむつ1は、図6に示すように、前身頃F及び後身頃Gそれぞれにおける吸収体4の長手方向の両側部に切込部41,42が形成されている。これらの切込部は、おむつの着用時には閉じ、下腹部ないし臀部に対応する部位に立体的な膨らみ部を形成できるため、下腹部ないし臀部にする押圧力を低減して良好な使用感を得ることができる。切込部は、本実施形態のように、前身頃F及び後身頃Gの両方に設けることが好ましいが、前身頃F及び後身頃Gのいずれか一方のみに設けることもできる。
複数の層からなる吸収体の場合は、各層のうち一層にでも切込部が形成されていれば良い。ただし、膨らみ部の形成の確実性、明瞭性の観点から、切込部が形成されている層の切込部には他の層が重なっていないこと、あるいは各層の切込部が重なっていることが好ましい。切込部が重なっているときは、完全に重なっている場合と共に、ずれて重なっている場合も含む。
切込部は、閉じた際にシワの発生が少ないことから、切込部の開口部から先端部(最深部)に向かうにつれて漸次幅が減少する形状であることが好ましく、平面視して略V字状(あるいは略U字状)であることがより好ましい。切込部が閉じた状態とは、自然状態で完全あるいはほぼ完全に閉じる場合に限られず、側縁間の距離が短くなる場合も含まれる。
In the diaper 1 of the present embodiment, as shown in FIG. 6, cut portions 41 and 42 are formed on both sides in the longitudinal direction of the absorbent body 4 in each of the front body F and the back body G. These cuts close when the diaper is worn, and a three-dimensional bulge can be formed in the part corresponding to the lower abdomen or the buttocks, thus reducing the pressing force to the lower abdomen or the buttocks and obtaining a good feeling of use. be able to. The cut portion is preferably provided in both the front body F and the back body G as in the present embodiment, but can be provided only in either the front body F or the back body G.
In the case of an absorber composed of a plurality of layers, it is only necessary that the cut portion is formed in one of the layers. However, from the viewpoint of certainty and clarity of the formation of the bulging part, the other layer does not overlap the cut part of the layer where the cut part is formed, or the cut part of each layer overlaps. It is preferable. When the cut portions are overlapped, this includes not only the case where they are completely overlapped but also the case where they are overlapped.
Since the cut portion is less likely to be wrinkled when it is closed, the cut portion preferably has a shape in which the width gradually decreases from the opening portion of the cut portion toward the tip portion (the deepest portion). More preferably V-shaped (or substantially U-shaped). The state in which the cut portion is closed is not limited to a case where the cut portion is completely or almost completely closed in a natural state, and includes a case where the distance between the side edges is shortened.

上述した実施形態のパンツ型おむつにおける各部の形成材料について説明する。表面シート2、裏面シート3、吸収体4、立体ガード11、外層シート21及び内層シート22等の形成材料としては、従来の使い捨ておむつ等において用いられている各種の材料を用いることができる。例えば、吸収体4としては、親水性繊維の集合体又はこれに高吸水性ポリマーを保持させてなるもの等を用いることができる。このような吸収体としては、パルプ繊維の積繊物やパルプ繊維と高吸水性ポリマーとの混合積繊物等を用いることができるが、このような積繊物に、アセテートトウなどの繊維を含ませたり、このような積繊物と紙や不織布等を組み合わせて吸収体とすることもできる。上述したおむつ1における切込部41,42は、吸収体4の構成材料である親水性繊維の集合体の一部を切り欠いて形成してある。吸収体4は、親水性繊維の集合体又はこれに高吸水性ポリマーを保持させてなる吸収性コアの表面を、液透過性の薄紙や不織布で被覆してあるものであっても良く、切込部が閉鎖した状態は、切込部を挟んで相対向する吸収性コアの部分同士が直接接触していても良いし、薄紙や不織布を介在した状態で互いに密着していても良い。   The formation material of each part in the underpants type diaper of embodiment mentioned above is demonstrated. As materials for forming the top sheet 2, the back sheet 3, the absorbent body 4, the solid guard 11, the outer layer sheet 21, the inner layer sheet 22, and the like, various materials used in conventional disposable diapers and the like can be used. For example, as the absorbent body 4, an aggregate of hydrophilic fibers or a structure in which a highly water-absorbing polymer is held thereon can be used. As such an absorbent body, a pile fiber product of pulp fibers, a mixed fiber product of pulp fibers and a super absorbent polymer, or the like can be used. It can also be included, or it can also be set as an absorber by combining such a piled fiber and paper, a nonwoven fabric, etc. The notches 41 and 42 in the diaper 1 described above are formed by cutting out a part of the aggregate of hydrophilic fibers that is a constituent material of the absorbent body 4. The absorbent body 4 may be formed by coating the surface of an absorbent core formed by holding a collection of hydrophilic fibers or a superabsorbent polymer with liquid-permeable thin paper or nonwoven fabric. When the cut-in portion is closed, the absorbent core portions facing each other across the cut-out portion may be in direct contact with each other, or may be in close contact with each other with thin paper or non-woven fabric interposed therebetween.

前記弾性部材51,61,62,71,72,71,72,81,82の形成材料としては、使い捨ておむつ等に用いられる各種公知の弾性材料を用いることができ、例えば素材としては、スチレン−ブタジエン、ブタジエン、イソプレン、ネオプレン等の合成ゴム、天然ゴム、EVA、伸縮性ポリオレフィン、ウレタン等の伸縮性の素材を広く用いることができ、例えば形態としては、断面が矩形、正方形、円形、多角形状、マルチフィラメントタイプ等の、糸状や紐状のもの、或いは帯状のもの等を用いることができる。   As a material for forming the elastic members 51, 61, 62, 71, 72, 71, 72, 81, 82, various known elastic materials used for disposable diapers and the like can be used. Elastic materials such as synthetic rubber such as butadiene, butadiene, isoprene and neoprene, natural rubber, EVA, elastic polyolefin and urethane can be widely used. For example, the shape is rectangular, square, circular, polygonal A filamentous or string-like one such as a multifilament type or a belt-like one can be used.

以上、本発明の好ましい実施形態について説明したが、本発明は、上述した実施形態に制限されない。
例えば、本発明の使い捨ておむつは、成人用のパンツ型おむつ、特に高齢女性用に適しているが、幼児用のおむつとして用いることもできる。
As mentioned above, although preferable embodiment of this invention was described, this invention is not restrict | limited to embodiment mentioned above.
For example, the disposable diaper of the present invention is suitable for adult pants-type diapers, particularly for elderly women, but can also be used as infant diapers.

図1は、本発明の一実施形態としてのパンツ型おむつを、その前身頃側から見た状態を示す斜視図である。FIG. 1 is a perspective view of a pant diaper as an embodiment of the present invention as seen from the front body side. 図2は、図1のパンツ型おむつの展開且つ伸張状態を示す平面図である。FIG. 2 is a plan view showing a developed and extended state of the pant-type diaper of FIG. 図3は、図2から吸収性本体を除去した状態を示す平面図である。FIG. 3 is a plan view showing a state where the absorbent main body is removed from FIG. 2. 図4は、図2のX−X線断面図である。4 is a cross-sectional view taken along line XX of FIG. 図5は、本発明の作用効果を説明する図であり、図5(a)は、前身頃を持っておむつを引き上げる状態を示す側面図であり、5(b)は、おむつを着用した状態を示す側面図である。FIG. 5 is a diagram for explaining the effects of the present invention, FIG. 5 (a) is a side view showing a state in which the diaper is pulled up with the front body, and 5 (b) is a state in which the diaper is worn. FIG. 図6は、図2に示すパンツ型おむつの吸収体を示す平面図である。FIG. 6 is a plan view showing the absorbent body of the pant-type diaper shown in FIG. 図7は、前身頃湾曲弾性領域の説明図である。FIG. 7 is an explanatory diagram of the front body curved elastic region.

符号の説明Explanation of symbols

1 パンツ型おむつ
2 表面シート
3 裏面シート
4 吸収体
5 ウエスト開口部
51 ウエスト弾性部材
6 レッグ開口部
61 第1のレッグ弾性部材
62 第2のレッグ弾性部材
71 前身頃湾曲弾性部材
72 後身頃湾曲弾性部材
81 前身頃第2弾性部材
82 後身頃第2弾性部材
A 腹側領域
B 背側領域
C 股下領域
F 前身頃
G 後身頃
DESCRIPTION OF SYMBOLS 1 Pants-type diaper 2 Top sheet 3 Back sheet 4 Absorber 5 Waist opening 51 Waist elastic member 6 Leg opening 61 First leg elastic member 62 Second leg elastic member 71 Front body curved elastic member 72 Rear body curved elastic member 72 Member 81 front body second elastic member 82 back body second elastic member A ventral region B dorsal region C inseam region F front body G back body

Claims (5)

前身頃及び後身頃を有し、ウエスト開口部及び一対のレッグ開口部が形成されているパンツ型の使い捨ておむつであって、
吸収性本体と該吸収性本体を固定している外装体とからなり、
前身頃及び後身頃それぞれのウエスト開口部近傍には、ウエスト弾性部材がおむつ幅方向に沿って配されており、展開且つ伸長状態における前身頃及び後身頃それぞれのウエスト弾性部材よりもおむつ横方向中心線側に、おむつ幅方向の両端部におけるよりもおむつ幅方向中央部側においておむつ横方向中心線に近づくように、それぞれ湾曲させて、前身頃湾曲弾性部材及び後身頃湾曲弾性部材が配されており、
前身頃湾曲弾性部材と後身頃湾曲弾性部材とは、おむつ幅方向中央部付近における相互の最近接部においてもおむつ長手方向に50mm以上離間しており、且つ後身頃湾曲弾性部材のおむつ長手方向の最大変位距離が、前身頃湾曲弾性部材のおむつ長手方向の最大変位距離よりも大きくなっており、
前身頃湾曲弾性部材及び後身頃湾曲弾性部材が、それぞれ複数本配されており、複数本の前身頃湾曲弾性部材同士及び複数本の後身頃湾曲弾性部材同士は、相互に交差ぜずに互いの間隔が一定距離を保つように配されており、
前身頃におけるウエスト弾性部材と前身頃湾曲弾性部材との間におむつ幅方向に沿って前身頃第2弾性部材が配されており、後身頃におけるウエスト弾性部材と後身頃湾曲弾性部材との間におむつ幅方向に沿って後身頃第2弾性部材が配されており、
前記外装体は、おむつの外表面を形成する外層シートと、該外層シートの内面側に積層接着された内層シートとを具備しており、
前身頃湾曲弾性部材及び前身頃第2弾性部材は、互いに交差しないように且つそれぞれ伸長状態で、外層シートと内層シートとの間に固定されており、
後身頃湾曲弾性部材及び後身頃第2弾性部材も、互いに交差しないように且つそれぞれ伸長状態で、外層シートと内層シートとの間に固定されており、
前記前身頃湾曲弾性部材は、前記前身頃のみに存在しており、前記後身頃湾曲弾性部材は、前記後身頃のみに存在している、パンツ型おむつ。
A pants-type disposable diaper having a front body and a back body, wherein a waist opening and a pair of leg openings are formed,
It consists of an absorbent main body and an exterior body fixing the absorbent main body,
In the vicinity of the waist opening of each of the front body and the back body, a waist elastic member is arranged along the diaper width direction, and the center of the diaper in the lateral direction is larger than the waist elastic members of the front body and the back body in the expanded and extended state. The front body bending elastic member and the back body bending elastic member are arranged on the line side so as to be closer to the diaper lateral center line on the diaper width direction central portion side than on both ends of the diaper width direction, respectively. And
The front body curved elastic member and the back body curved elastic member are separated from each other by 50 mm or more in the longitudinal direction of the diaper at the closest part in the vicinity of the central part of the diaper width direction. The maximum displacement distance is larger than the maximum displacement distance in the diaper longitudinal direction of the front body curved elastic member,
A plurality of front body bending elastic members and a plurality of back body bending elastic members are arranged, and the plurality of front body bending elastic members and the plurality of back body bending elastic members do not cross each other. It is arranged so that the distance is kept constant,
A front body second elastic member is disposed along the diaper width direction between the waist elastic member and the front body curved elastic member in the front body, and between the waist elastic member and the back body curved elastic member in the back body. The back body second elastic member is arranged along the diaper width direction,
The exterior body includes an outer layer sheet that forms an outer surface of the diaper, and an inner layer sheet that is laminated and bonded to the inner surface side of the outer layer sheet,
The front body curved elastic member and the front body second elastic member are fixed between the outer layer sheet and the inner layer sheet so as not to cross each other and in an extended state,
The back body curved elastic member and the back body second elastic member are also fixed between the outer layer sheet and the inner layer sheet so as not to cross each other and in an extended state ,
The front body curved elastic member is present only in the front body, and the back body curved elastic member is present only in the rear body .
前身頃湾曲弾性部材及び後身頃湾曲弾性部材は、吸収体の幅方向中央部と重なる部分には、存在しないか又は該吸収体の幅方向中央部と重なる部分においては収縮力を発現しないようになされている請求項1記載のパンツ型おむつ。   The front body bending elastic member and the back body bending elastic member do not exist in the portion overlapping the central portion in the width direction of the absorber, or do not express contraction force in the portion overlapping the central portion in the width direction of the absorber. The underpants type diaper according to claim 1 made. 前身頃湾曲弾性部材と後身頃湾曲弾性部材とが、おむつの側部において、相互に重なっているか又は近接して実質的に連続している請求項1又は2記載のパンツ型おむつ。   The underpants type diaper according to claim 1, wherein the front body curved elastic member and the back body curved elastic member overlap each other or are substantially adjacent to each other at a side portion of the diaper. 前身頃湾曲弾性部材を含む前身頃湾曲弾性領域よりも、後身頃湾曲弾性部材を含む後身頃湾曲弾性領域の方が伸長応力が高い請求項1〜3の何れかに記載のパンツ型おむつ。   The underpants type diaper according to any one of claims 1 to 3, wherein the rear body curved elastic region including the back body curved elastic member has a higher elongation stress than the front body curved elastic region including the front body curved elastic member. 前身頃湾曲弾性部材を含む前身頃湾曲弾性領域よりも前身頃第2弾性部材を含む前身頃第2弾性領域の伸長応力が高く、後身頃湾曲弾性部材を含む後身頃湾曲弾性領域よりも後身頃第2弾性部材を含む後身頃第2弾性領域の伸長応力が高い請求項1〜4の何れかに記載のパンツ型おむつ。   The front body second elastic region including the front body second elastic member has a higher elongation stress than the front body curved elastic region including the front body curved elastic member, and the back body than the rear body curved elastic region including the back body curved elastic member. The underpants type diaper according to any one of claims 1 to 4, wherein the second body elastic region including the second elastic member has a high elongation stress.
JP2005277566A 2005-09-26 2005-09-26 Pants-type diapers Expired - Fee Related JP4679321B2 (en)

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JP5160863B2 (en) * 2007-11-15 2013-03-13 ユニ・チャーム株式会社 Disposable diapers
JP5253064B2 (en) * 2008-09-18 2013-07-31 ユニ・チャーム株式会社 Disposable diapers
JP5625358B2 (en) * 2010-01-08 2014-11-19 王子ホールディングス株式会社 Tape type disposable diaper
JP5625357B2 (en) * 2010-01-08 2014-11-19 王子ホールディングス株式会社 Tape type disposable diaper
JP5530252B2 (en) 2010-05-20 2014-06-25 ユニ・チャーム株式会社 Disposable wearing items
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