JP4249097B2 - Pants-type disposable diaper - Google Patents

Pants-type disposable diaper Download PDF

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Publication number
JP4249097B2
JP4249097B2 JP2004190932A JP2004190932A JP4249097B2 JP 4249097 B2 JP4249097 B2 JP 4249097B2 JP 2004190932 A JP2004190932 A JP 2004190932A JP 2004190932 A JP2004190932 A JP 2004190932A JP 4249097 B2 JP4249097 B2 JP 4249097B2
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Prior art keywords
joint
leg
disposable diaper
type disposable
opening
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JP2006006780A (en
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幸子 中澤
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New Oji Paper Co Ltd
Oji Nepia Co Ltd
Oji Holdings Corp
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Oji Nepia Co Ltd
Oji Holdings Corp
Oji Paper Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8223—Peel tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Description

本発明は、パンツ型使い捨ておむつに関するものである。さらに詳しくは、本発明は、いかなる体形の着用者であっても良好にフィットするパンツ型使い捨ておむつに関するものである。   The present invention relates to a pants-type disposable diaper. More specifically, the present invention relates to a pants-type disposable diaper that fits well to any body shape wearer.

使い捨ておむつは、液透過性の表面シートと、液不透過性の裏面シートと、これら両シートの間に配置された吸収体から基本的に形成されており、着用時に排泄された尿等の排泄物を液透過性の表面シートを介して吸収体に保持し、液不透過性の裏面シートにより、排泄物がおむつの外に漏れ出すのを防ぐ構造になっている。そして、その用途に応じて好適に使用できるように展開型、パンツ型等、様々な形態のものが提案されており、乳幼児を始めとして成人失禁者まで広く使用されている。   Disposable diapers are basically formed from a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between these two sheets, and excreted urine excreted when worn. An object is held on the absorber through a liquid-permeable top sheet, and the liquid-impermeable back sheet prevents the excrement from leaking out of the diaper. And various forms, such as a deployment type and a pants type, have been proposed so that they can be suitably used according to the application, and are widely used by infants and other adult incontinent persons.

パンツ型使い捨ておむつは、一般に、前身頃と後身頃を股下部を介して折り畳んで重ね合せ、前身頃と後身頃の相対する長手方向両側縁部を接合してウエスト周り開口部と一対の脚周り開口部を形成し、さらに、おむつを着用者の身体にフィットさせるためにウエスト周り開口部と脚周り開口部に沿って伸縮弾性体を配置して形成されてれている。   Pants-type disposable diapers are generally folded by overlapping the front and back bodies through the crotch, joining the opposite longitudinal edges of the front and back bodies and opening around the waist and a pair of legs In order to form the opening, and to fit the diaper to the wearer's body, the elastic elastic body is disposed along the waist opening and the leg opening.

このようなパンツ型使い捨ておむつは、形成されるウエスト周り開口部と脚周り開口部の大きさが一定であるため、全ての着用者にフィットするものではなく、着用者の体形によってウエスト周りと脚周りの何れかの開口部が大き過ぎたり小さ過ぎたりする不具合を生じており、開口部が小さ過ぎると、開口部に配置した伸縮弾性体の締付けにより、着用者の肌に跡が付き、傷付いたり、かぶれるという問題を生じ、また、開口部が大き過ぎると、開口部から排泄物が漏れ出すという問題を生じていた。特に、着用者の動きの影響を受け易い脚周り開口部において、これらの問題は著しいものであった。   Such a pants-type disposable diaper is not suitable for all wearers because the size of the opening around the waist and the opening around the leg is constant, and it does not fit all wearers. There is a problem that one of the surrounding openings is too large or too small, and if the opening is too small, the elastic elastic body placed in the opening will be tightened, leaving a mark on the skin of the wearer. There was a problem of sticking or rashing, and when the opening was too large, there was a problem of excretion leaking from the opening. In particular, these problems are significant in the opening around the leg that is susceptible to the movement of the wearer.

このような問題を改善するために、パンツ型使い捨ておむつの胴周り側縁部において、ウエスト周り開口部と脚周り開口部に沿って伸縮性の止着テープを取付け、各開口部に生じた弛みを締め付けて着用者にフィットさせるようにしたもの（特許文献１）、また、パンツ型使い捨ておむつの胴周り側縁部において、脚周り開口部からウエスト周り開口部近傍にかけて、あるいは、脚周り開口部からウエスト周り開口部に達するスリットを形成し、スリット部分を着脱可能な連結部材で連結して、おむつを着用者にフィットさせるようにしたもの（特許文献２、特許文献３）、さらに、パンツ型使い捨ておむつの胴周り側縁部において、脚周り開口部にスリットを形成して、おむつを着用者に必要以上に締め付けることがないようにしたもの（特許文献４）等が開示されている。
実開平５−３９５３１号公報 実開平６−６５４０９号公報 実開平６−６６６５３号公報 特開平８−３８５４６号公報 In order to improve such problems, elastic fastening tape is attached along the waist opening and leg opening at the side edge around the waist of the pants-type disposable diaper. (Patent document 1) which tightened the body to fit the wearer, and the trunk side edge of the pant-type disposable diaper from the leg-hole opening to the waist-around opening, or the leg-hole opening A slit reaching from the waist to the opening around the waist is formed, and the slit part is connected by a detachable connecting member to fit the diaper to the wearer (Patent Document 2, Patent Document 3). Disposable diaper around the torso side edge, slits are formed in the leg opening to prevent the diaper from being tightened more than necessary by the wearer ( Patent Document 4) have been disclosed.
Japanese Utility Model Publication No. 5-39531 Japanese Utility Model Publication No. 6-65409 Japanese Utility Model Publication No. 6-66653 JP-A-8-38546

しかしながら、胴周り側縁部に伸縮性の止着テープを取付けたおむつの場合、おむつを締め付ける場合に重なり部分が形成されるため、着用感が悪くなってしまう。また、胴周り側縁部にスリットを形成し、連結部材で連結したおむつの場合、大量の排泄物が排泄された場合にスリットから漏れ出してしまい、また、着用中に連結部材が外れた場合には、おむつとしての機能が失われてしまう可能性がある。さらに、側縁部において脚周り開口部にスリットを形成したおむつの場合、脚周り開口部の締付けが弱いため、着用者の体形によっては、スリットから排泄物が漏れ出してしまう可能性がある。   However, in the case of a diaper in which a stretchable fastening tape is attached to the waistline side edge, an overlapped portion is formed when the diaper is tightened, so that the feeling of wearing is deteriorated. In addition, in the case of a diaper that is formed with a slit in the waistline side edge and connected with a connecting member, when a large amount of excrement is excreted, it leaks out of the slit, and when the connecting member comes off during wearing May lose its function as a diaper. Furthermore, in the case of a diaper in which a slit is formed in the opening around the leg at the side edge, since the tightening of the opening around the leg is weak, excrement may leak from the slit depending on the body shape of the wearer.

本発明は、上記従来のパンツ型使い捨ておむつの有する問題点を克服し、いかなる体形の着用者であっても良好にフィットし、着用者の肌を傷付けたり、かぶれたりすることがなく、さらに、脚周り開口部からの漏れ防止効果を改善したパンツ型使い捨ておむつを提供するものである。   The present invention overcomes the problems of the conventional pants-type disposable diaper, fits well to any body wearer, and does not damage or rash the wearer's skin, The present invention provides a pants-type disposable diaper having an improved effect of preventing leakage from an opening around a leg.

上記従来のパンツ型使い捨ておむつの有する問題点を解決するための本発明は、以下の各発明を包含する。   The present invention for solving the problems of the conventional pants-type disposable diapers includes the following inventions.

（１）前身頃と、後身頃と、これら両身頃の間に位置する股下部とを有してなり、前記前身頃と後身頃を股下部で折り畳んで重ね合せ、前身頃と後身頃の相対する長手方向両側縁部を接合してウエスト周り開口部と一対の脚周り開口部を形成し、各開口部に沿ってウエスト周り伸縮弾性体と脚周り伸縮弾性体を配置したパンツ型使い捨ておむつにおいて、
前記前身頃と後身頃の相対する長手方向両側縁部は、前記脚周り開口部から所定長さの領域が、その他の領域を接合している接合部よりも接合強度が強い複数の接合部によって接合されており、該複数の接合強度が強い接合部に隣接しておむつのサイズを表示する手段が配置されていて、脚周り開口部側の接合強度が強い接合部を引き裂いて着用者の脚周りに適合したサイズの脚周り開口部を形成して使用できることを特徴とするパンツ型使い捨ておむつ。 (1) It has a front body, a back body, and a crotch part located between these two body parts. The front body and the back body are folded and overlapped at the crotch part, and the front body and the back body are relative to each other. In a pants-type disposable diaper in which both side edges in the longitudinal direction are joined to form an opening around the waist and a pair of leg openings, and an elastic body around the waist and an elastic body around the leg are arranged along each opening ,
The longitudinal opposite side edges of the front body and the back body are formed by a plurality of joints having a region having a predetermined length from the opening around the leg and a joint strength stronger than a joint joining other regions. A means for displaying the size of the diaper is disposed adjacent to the joint having the strong joint strength, and the leg of the wearer's leg is torn by tearing the joint having a strong joint strength on the leg opening side. A pants-type disposable diaper characterized in that it can be used by forming a leg-periphery opening of a size that fits around .

（２）前記脚周り伸縮弾性体が複数本の伸縮弾性部材からなり、それらの複数の伸縮弾性部材のうちの１本以上が前記接合強度が強い接合部又はその近傍に先端部が位置するように配置されていることを特徴とする（１）項記載のパンツ型使い捨ておむつ。 (2) The leg stretchable elastic body is composed of a plurality of stretchable elastic members, and at least one of the plurality of stretchable elastic members is positioned at or near the joint where the joint strength is strong. The pants-type disposable diaper according to item (1), wherein

（３）前記脚周り開口部から所定長さの領域は、前記両側縁部の長手方向に１０〜４０ｍｍの間隔で複数の接合強度の強い接合部を形成するように接合されていることを特徴とする（１）項又は（２）項に記載のパンツ型使い捨ておむつ。 (3) The region having a predetermined length from the opening around the leg is joined so as to form a plurality of joints having a strong joint strength at intervals of 10 to 40 mm in the longitudinal direction of the side edges. The pants-type disposable diaper according to (1) or (2).

（４）前記複数の接合強度の強い接合部の間に接合強度がより低い接合部が配置されていることを特徴とする（３）項に記載のパンツ型使い捨ておむつ。 (4) The pants-type disposable diaper according to (3), wherein a joint having a lower joint strength is disposed between the plurality of joints having a high joint strength.

（５）前記脚周り開口部から所定長さの領域の接合強度の強い接合部を含む長手方向両側縁部の剥離強度が６．５〜３５．０Ｎ／２５ｍｍであることを特徴とする（１）項〜（４）項のいずれか１項に記載のパンツ型使い捨ておむつ。 (5) The peel strength of both side edges in the longitudinal direction including a joint portion having a strong joint strength in a predetermined length region from the opening around the leg is 6.5 to 35.0 N / 25 mm (1) The pants-type disposable diaper according to any one of items (1) to (4).

（６）前記前身頃と後身頃の相対する長手方向両側縁部を接合している接合部の幅寸法が３〜２０ｍｍであることを特徴とする（１）項〜（５）項のいずれか１項に記載のパンツ型使い捨ておむつ。 (6) Any one of the items (1) to (5), characterized in that a width dimension of a joint part joining the opposite longitudinal side edges of the front body and the back body is 3 to 20 mm. The pants-type disposable diaper according to item 1.

（７）前記前身頃と後身頃の相対する長手方向両側縁部を接合している接合部が、長手方向に間隔をおいて平行に配置されている複数の線状乃至帯状接合部であることを特徴とする（１）項〜（６）項のいずれか１項に記載のパンツ型使い捨ておむつ。 (7) The joints joining the opposite longitudinal side edges of the front body and the back body are a plurality of linear or belt-like joints arranged in parallel at intervals in the longitudinal direction. The pants-type disposable diaper according to any one of items (1) to (6).

（８）前記長手方向両側縁部を接合している接合部が、前記前身頃と後身頃の両側縁部をヒートシール処理して形成されており、且つ、前記接合強度が強い接合部と接合強度が弱い接合部がヒートシールパターンを変更することによって形成されていることを特徴とする（１）項〜（７）項のいずれか１項に記載のパンツ型使い捨ておむつ。 (8) The joining portion joining the both side edges in the longitudinal direction is formed by heat-sealing the both side edges of the front body and the back body, and joining the joining portion having a strong joining strength. The pants-type disposable diaper according to any one of items (1) to (7), wherein the joint portion having a low strength is formed by changing a heat seal pattern.

本発明のパンツ型使い捨ておむつは、前身頃と後身頃の相対する長手方向両側縁部がヒートシール処理等により接合してウエスト周り開口部と一対の脚周り開口部が形成されており、且つ、長手方向両側縁部の全長の１／２より脚周り開口部側の脚周り開口部から所定長さの領域が、長手方向両側縁部の他の領域を接合している接合部よりも接合強度が強い接合部によって接合されていることを特徴とするものである。   In the pants-type disposable diaper of the present invention, opposite longitudinal side edges of the front body and the back body are joined by a heat seal process or the like to form a waist opening and a pair of leg openings, and An area of a predetermined length from the leg opening on the side of the leg opening on the side of the leg opening on the side of the full length of both edges in the longitudinal direction is stronger than the joint joining the other areas on both sides of the longitudinal direction. Is characterized by being joined by a strong joint.

このような長手方向両側縁部の脚開口部側を接合強度の強い接合部によって接合されている構成を有する本発明のパンツ型使い捨ておむつは、脚周りの大きな着用者に対しても、脚周り開口部側の接合強度が強い部分を脚周り開口端部から必要な長さだけ手で引裂いて広げることにより着用者の脚周りに適合した大きさの脚周り開口部を形成することができ、しかも、引き裂き広げた状態で脚周り開口部が着用者の脚周りを十分に締めつける機能を有しているため、フィット性が良く、脚周り開口部からの排泄物の漏れを防止する機能も十分に備えている。   The pants-type disposable diaper of the present invention having such a structure in which the leg opening side of both side edges in the longitudinal direction is joined by a joint having a strong joint strength is suitable for a large wearer around the leg. By opening the portion with strong joint strength on the opening side by tearing by hand the necessary length from the leg opening end, a leg opening of a size suitable for the wearer's leg can be formed, In addition, the leg opening has a function to sufficiently tighten the wearer's leg around in the state of tearing and spreading, so the fit is good and the function to prevent leakage of excrement from the leg opening is also sufficient. In preparation.

本発明の場合、脚周り開口部に配置する伸縮弾性体を複数本の伸縮弾性部材で形成し、少なくとも１本の伸縮弾性部材を接合強度が強い接合部又はその近傍に先端部が位置するように配置することが好ましい。
このように接合強度が強い接合部近傍に伸縮弾性部材の先端部が位置するように配置して脚周り伸縮弾性体による締めつけ機能を付与することにより、脚周り開口部を引き裂いて脚周り開口部を広げた場合にも脚周り開口部のフィット性を良好な状態に維持できることとなり、本発明の効果をより高めることが可能となる。 In the case of the present invention, the stretchable elastic body disposed in the opening around the leg is formed by a plurality of stretchable elastic members, and at least one stretchable elastic member is positioned at or near the joint where the joint strength is strong. It is preferable to arrange in.
By arranging the tip of the elastic elastic member in the vicinity of the joint where the bonding strength is strong in this way and providing a tightening function by the elastic elastic body around the leg, the leg opening is torn. Even when the leg is widened, the fit of the opening around the leg can be maintained in a good state, and the effect of the present invention can be further enhanced.

以下、図面を参照して、本発明のパンツ型使い捨ておむつのを具体的に説明するが、勿論、本発明はこれらによって何等限定されるものではない。   Hereinafter, the pants-type disposable diaper of the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to these in any way.

図１は、本発明のパンツ型使い捨ておむつを組み立てた状態を示す斜視図である。図１において、パンツ型使い捨ておむつ１は、前身頃２と、後身頃３と、これら両身頃の間に位置する股下部４とを有しており、前身頃２と後身頃３を股下部４で折り畳んで重ね合わせ、前身頃２と後身頃３の相対する長手方向両側縁部を互いに離間して平行に形成されているおむつの幅方向に長い線状乃至帯状の接合部５によって接合してウエスト周り開口部６と一対の脚周り開口部７を形成し、各開口部に沿ってウエスト周り伸縮弾性体８と脚周り伸縮弾性体９を配置し、さらに、胴周りにも胴周り伸縮弾性体１０を配置して形成されている。   FIG. 1 is a perspective view showing a state in which a pants-type disposable diaper of the present invention is assembled. In FIG. 1, a pants-type disposable diaper 1 has a front body 2, a back body 3, and a crotch part 4 positioned between the two body parts. The front body 2 and the back body 3 are connected to the crotch part 4. Folded together and joined together, the opposite side edges in the longitudinal direction of the front body 2 and the back body 3 are joined together by a linear or belt-like joint 5 which is long in the width direction of the diaper formed parallel to each other. A waist circumference opening 6 and a pair of leg circumference openings 7 are formed, a waist circumference elastic body 8 and a leg circumference elastic body 9 are arranged along each opening, and the waist circumference elasticity is also provided around the trunk. The body 10 is arranged and formed.

また、脚周り開口部７側の領域には、ウエスト周り開口部側の領域を接合している接合部５より接合強度が強い複数の線状接合部１１が一定間隔で形成されると共に、隣接する接合強度が強い接合部１１との間には接合部１１よりも接合強度が弱い点線状の接合部１２が形成されている。
さらに、脚周り伸縮弾性体９は、複数本の伸縮弾性部材９’，９’…からなり、各伸縮弾性部材９’が股下部４から各接合強度が強い接合部１１の近傍で、そのウエスト周り開口部６側の位置に先端部が位置するように配置されている。 Further, in the region around the leg opening 7, a plurality of linear joints 11 having a stronger bonding strength than the joint 5 joining the region around the waist opening are formed at regular intervals and adjacent to each other. Between the joints 11 having a strong joint strength, a dotted line-like joint 12 having a joint strength lower than that of the joint 11 is formed.
Further, the leg elastic elastic body 9 is composed of a plurality of elastic elastic members 9 ′, 9 ′, etc., and each elastic elastic member 9 ′ is in the vicinity of the joint 11 where the joint strength is strong from the crotch part 4 and its waist. It arrange | positions so that a front-end | tip part may be located in the position of the circumference opening part 6 side.

このような構成を有する本発明のパンツ型使い捨ておむつは、脚周りの大きさが異なる着用者であっても、接合部の脚周り開口部側の接合強度が強い接合部１１部分を手で開口部側から順次引裂いて着用者の脚周りに適合した脚周り開口部を形成することができ、さらに、股下部から接合強度が強い接合部１１近傍にかけて配置した伸縮弾性部材からなる脚周り伸縮弾性体の作用により引き裂き拡張した後の脚周り開口部が着用者の脚周りを締め付けることとなり、脚周り開口部を着用者の脚周りに無理なく良好にフィットさせることが可能であり、且つ、脚周り開口部からの排泄物の漏れを防止することができる。   The pants-type disposable diaper of the present invention having such a configuration opens the joint portion 11 portion having a strong joint strength on the leg-periphery opening side of the joint portion by hand, even if the wearer has a different size around the leg. A leg opening that fits around the leg of the wearer can be formed by tearing sequentially from the part side, and further, the leg stretchable elasticity composed of a stretchable elastic member arranged from the crotch part to the vicinity of the joint 11 having a strong joint strength. The opening around the leg after tearing and expanding by the action of the body tightens the circumference of the wearer's leg, and it is possible to fit the leg opening around the wearer's leg reasonably and satisfactorily. Leakage of excrement from the surrounding opening can be prevented.

図２〜図５は、本発明のパンツ型使い捨ておむつの長手方向両側縁部を接合している接合部の形状及び配置状態を示す拡大平面図である。
図２〜図５において、接合部５、接合部１１及び接合部１２は、いずれもおむつの幅方向に長い複数の線状の接合パターンにより形成されており、図２では、脚周り開口部７側に一定間隔で形成された各接合強度が強い接合部１１の間に複数本の点線状の接合強度が弱い接合部１２が形成されており、図３では、脚周り開口部７側に一定間隔で形成された各接合強度が強い接合部１１の間に１本の細線状の接合パターンからなる接合強度が弱い接合部１２が形成されている。 2 to 5 are enlarged plan views showing the shape and arrangement state of the joint part joining the both side edges in the longitudinal direction of the pants-type disposable diaper of the present invention.
2 to 5, each of the joint portion 5, the joint portion 11, and the joint portion 12 is formed by a plurality of linear joining patterns that are long in the width direction of the diaper. In FIG. A plurality of dotted joints 12 having a weak joint strength are formed between joints 11 having a strong joint strength formed on the side at constant intervals. In FIG. A joint portion 12 having a low joint strength formed of a single thin wire-like joint pattern is formed between the joint portions 11 formed at intervals and having a strong joint strength.

また、図４では、２本の平行線状の接合線パターンからなる接合強度が強い接合部１１が一定間隔で形成されており、さらに、図５では、線状の接合パターンからなる接合強度が強い接合部１１が一定間隔で形成されると共に、接合強度が強い接合部１１に隣接しておむつのサイズを示す表示１３が形成されている。   Further, in FIG. 4, the joint portions 11 having a strong joint strength composed of two parallel line-shaped joint line patterns are formed at regular intervals, and in FIG. 5, the joint strength composed of a linear joint pattern is formed. Strong joints 11 are formed at regular intervals, and a display 13 indicating the size of the diaper adjacent to the joint 11 having strong joint strength is formed.

なお、図４及び図５では、脚周り開口部側の両側縁部に接合強度が強い接合部１１のみが形成され、接合強度が弱い接合部（１２）が形成されていない例を示したが、隣接する接合強度が強い接合部１１の間に接合強度が弱い接合部（１２）が形成されていても良い。隣接する接合強度が強い接合部の間に接合強度が弱い接合部を形成することにより、装着時に脚周り開口部において前後身頃の側縁部が離間することがなくなるため、装着時の見栄えが良くなり好ましい。   4 and 5 show an example in which only the joint portion 11 having a strong joint strength is formed at both side edges on the side of the opening around the leg and the joint portion (12) having a low joint strength is not formed. A joint portion (12) having a low joint strength may be formed between adjacent joint portions 11 having a high joint strength. By forming a joint with low joint strength between adjacent joints with strong joint strength, the side edges of the front and rear bodies do not separate at the opening around the leg when wearing, so the appearance at the time of wearing is good It is preferable.

本発明において、隣接する接合強度が強い接合部１１間の間隔は１０〜４０ｍｍであることが好ましい。隣接する接合強度が強い接合部間の間隔が１０ｍｍ未満になると、接合強度が強い接合部の間隔が密になり過ぎるため、使用済みのパンツ型使い捨ておむつを両側縁部で引き剥がして着用者から外す場合に引き剥がし難くなる。また、接合強度が強い接合部間の長さが４０ｍｍを超えて長くなると、接合強度が強い接合部によって形成される脚周り開口部のサイズの違いが大きくなるため、すべての着用者に適合させることができなくなる。   In this invention, it is preferable that the space | interval between the junction parts 11 with strong adjacent joint strength is 10-40 mm. When the distance between adjacent joints with high bonding strength is less than 10 mm, the distance between the bonding parts with high bonding strength becomes too dense, so the used pants-type disposable diaper is peeled off at both side edges from the wearer. It becomes difficult to peel off when removing. Also, if the length between joints with strong joint strength exceeds 40 mm, the difference in size of the leg opening formed by the joint part with strong joint strength becomes large, so it is suitable for all wearers. I can't do that.

また、本発明において、接合部の接合強度が強い接合部を含む長手方向両側縁部の剥離強度は６．５〜３５．０Ｎ／２５ｍｍであることが好ましい。剥離強度が６．５／Ｎ２５ｍｍ未満になると、接合部の接合強度が低くなり、おむつ装着時に接合部が剥離してしまう可能性がある。また、剥離強度が３５．０Ｎ／２５ｍｍを超えて大きくなると、接合強度が高くなり過ぎるため、使用済みのおむつを接合部で引き剥がして着用者から外す場合に引き剥がし難くなる。   Moreover, in this invention, it is preferable that the peeling strength of a longitudinal direction both-sides edge part including a junction part with strong joint strength of a junction part is 6.5-35.0 N / 25mm. When the peel strength is less than 6.5 / N25 mm, the joint strength of the joint portion becomes low, and the joint portion may peel off when the diaper is mounted. Further, if the peel strength increases beyond 35.0 N / 25 mm, the joint strength becomes too high, so that it is difficult to peel off when the used diaper is peeled off at the joint and removed from the wearer.

なお、上記剥離強度は、図６に示すように、パンツ型使い捨ておむつ１の前身頃２と後身頃３と接合部５を含む部分を２５ｍｍの幅で切り取り、前身頃２と後身頃３をそれぞれチャックに取付け、テンシロン引張り試験機により２００ｍｍ／ｍｉｎの速度で矢印の方向に引張って測定した１８０°剥離試験の測定値である。   In addition, as shown in FIG. 6, the said peeling strength cuts off the part containing the front body 2, the back body 3, and the junction part 5 of the underpants type disposable diaper 1 with a width of 25 mm, and each of the front body 2 and the back body 3 is each cut off. It is a measurement value of a 180 ° peel test which is attached to a chuck and measured by pulling in a direction of an arrow at a speed of 200 mm / min with a Tensilon tensile tester.

さらに、本発明において、各接合部の幅寸法（図２においてｄで示す部分）は３〜２０ｍｍであることが好ましい。接合部の幅寸法が３ｍｍ未満になると、特に接合部５の強度が低くなり、おむつ装着時に接合部が剥離してしまう可能性がある。また、各接合部の幅寸法が２０ｍｍを超えて広くなると、使用済みのおむつを各接合部で引き剥がす場合に引き剥がし難くなるし、さらに、おむつを装着した上に衣類を装着する場合に、両側縁部が剛直化して衣類が引っ掛かり、装着し難くなる。   Furthermore, in this invention, it is preferable that the width dimension (part shown by d in FIG. 2) of each junction part is 3-20 mm. When the width dimension of the joint portion is less than 3 mm, the strength of the joint portion 5 is particularly low, and the joint portion may be peeled off when the diaper is mounted. Also, if the width dimension of each joint becomes wider than 20 mm, it becomes difficult to peel off when used diapers are peeled off at each joint, and furthermore, when wearing clothes on wearing diapers, Both side edges become stiff and clothes are caught, making it difficult to wear.

また、本発明において、両側縁部における各接合部は、前身頃と後身頃の両側縁部を合わせてヒートシール処理して形成することができる。すなわち、前身頃と後身頃の両側縁部を合掌型に重ね合わせ、加圧溶融もしくは超音波溶融を各々単独で行なうか、あるいはこれらを組合せて接合して形成することができる。   Moreover, in this invention, each junction part in a both-sides edge part can be formed by heat-sealing together the both-sides edge part of a front body and a back body. That is, it can be formed by superimposing both side edges of the front body and the back body in a palm-type shape and performing pressure melting or ultrasonic melting individually or by combining them together.

また、各接合部を形成するヒートシールパターンは、図１〜図５に示すように、おむつの幅方向に長い線状のパターンとすることが好ましい。このような線状のヒートシールパターンを形成することにより、各接合部に適度の強度を付与することができるため、おむつ着用時に接合部が剥離することがなく、また、使用済みのおむつを外す場合には接合部を手で容易に引き剥がすことができる。さらに、ヒートシールパターンの長さ、太さ、形状等を変えることにより、接合強度が強い接合部と接合強度が弱い接合部を容易に形成することができる。   Moreover, it is preferable to make the heat seal pattern which forms each junction part into a linear pattern long in the width direction of a diaper, as shown in FIGS. By forming such a linear heat-seal pattern, it is possible to impart appropriate strength to each joint, so that the joint does not peel off when the diaper is worn, and the used diaper is removed. In some cases, the joint can be easily peeled off by hand. Furthermore, by changing the length, thickness, shape, and the like of the heat seal pattern, it is possible to easily form a joint having a high joint strength and a joint having a low joint strength.

図１〜図５には、使い捨ておむつの両側縁部における各接合部の形状、配置状態として、両側縁部の長手方向に所定間隔で複数の線状乃至帯状のヒートシール部を平行に配置したパターンを示したが、各接合部の形状、配置状態はこれらのパターンに限定されるものではなく、パンツ型使い捨ておむつの前身頃と後身頃の相対する長手方向両側縁部における脚周り開口部から所定長さの領域をその他の領域よりも接合強度の強い接合部となるように接合でき、それによって、脚周り開口部側の接合強度が強い部分を脚周り開口部から必要な長さだけ手で引裂いて広げることにより着用者の脚周りに適合した大きさの脚周り開口部を形成することができるような接合部である限り、各接合部の形状、配置状態に特に制限はない。   In FIG. 1 to FIG. 5, a plurality of linear or belt-like heat seal portions are arranged in parallel at predetermined intervals in the longitudinal direction of both side edges as the shape and arrangement state of each joint at both side edges of the disposable diaper. Although the pattern is shown, the shape and arrangement state of each joint is not limited to these patterns. From the opening around the leg at the opposite longitudinal side edges of the front and back of the pants-type disposable diaper A region with a predetermined length can be joined so that it has a stronger joint strength than other regions. There are no particular restrictions on the shape and arrangement of the joints as long as the joints can be formed by tearing and spreading to form a leg-periphery opening of a size suitable for the wearer's leg.

本発明のパンツ型使い捨ておむつは、前身頃と、後身頃と、これら両身頃の間に位置する股下部とを有するパンツを形成する部材をその股下部を介して折り畳んで重ね合わせ、前身頃と後身頃の相対する長手方向両側縁部を接合してウエスト周り開口部と一対の脚周り開口部を形成し、各開口部に沿ってウエスト周り伸縮弾性体と脚周り伸縮弾性体を配置して形成される。   A pants-type disposable diaper according to the present invention comprises a front body, a back body, and a member forming a pant having a crotch portion located between both body folds and folded over the crotch portion, Join the opposite longitudinal edges of the back body to form an opening around the waist and a pair of leg openings, and arrange the elastic body around the waist and the elastic body around the legs along each opening. It is formed.

具体的には、液透過性のトップシートと、液不透過性のバックシートと、これら両シートの間に配置された吸収体とからなるいわゆる一体型のおむつを用い、これをトップシートを内側にして折り畳み、前後身頃の両側縁部を接合してパンツ型使い捨ておむつを形成することができる。
あるいは、液透過性のトップシートと、液不透過性のバックシートと、これら両シートの間に配置された吸収体とからなる吸収性本体と、吸収性本体が接合され、これを着用者に当てて保持する外装部材とからなるいわゆるツーピース型のおむつを用い、これを吸収性本体を内側にして折り畳み、外装部材の前後身頃の両側縁部を接合してパンツ型使い捨ておむつを形成することもできる。 Specifically, a so-called integrated diaper comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between these two sheets is used, and the top sheet is placed inside. The pants-type disposable diaper can be formed by folding and joining the side edges of the front and back bodies.
Alternatively, an absorbent main body composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the two sheets, and the absorbent main body are joined, and this is attached to the wearer. A so-called two-piece diaper consisting of an exterior member to be held against and held, folded with the absorbent main body inside, and joined to both side edges of the front and back body of the exterior member to form a pants-type disposable diaper it can.

本発明において、液透過性のトップシートとしては、ポリエチレン、ポリプロピレン、ポリエステル、その他の熱可塑性樹脂を原料とした合成繊維等からなる不織布に親水化処理を施したものが用いられる。   In the present invention, as the liquid-permeable top sheet, a non-woven fabric made of synthetic fiber or the like using polyethylene, polypropylene, polyester, or other thermoplastic resin as a raw material is used.

本発明において、液不透過性のバックシートとしては、微孔を設けたポリエチレンシート、あるいは熱可塑性樹脂にフィラーを加えて延伸したシートのような透湿性のある液体不透過性のシートが用いられる。このようなシートを用いると、ムレが改善されるため快適な着用感が得られる。さらに、このようなシートの外側に不織布からなるカバーシートを貼り合わせた積層構造のシートを用いることもできる。   In the present invention, as the liquid-impermeable back sheet, a moisture-permeable liquid-impermeable sheet such as a polyethylene sheet provided with micropores or a sheet obtained by adding a filler to a thermoplastic resin is used. . When such a sheet is used, stuffiness is improved and a comfortable wearing feeling can be obtained. Furthermore, a sheet having a laminated structure in which a cover sheet made of a nonwoven fabric is bonded to the outside of such a sheet can also be used.

本発明において、吸収体としては、通常の使いすておむつのような吸収性物品に使用されるものであればいずれも使用することができる。すなわち、綿状パルプと高吸収性ポリマーを併用したもの、さらに熱融着繊維を加えたもの等を使用することができ、全体をティッシュのような親水性シートで包まれているものが好ましい。その他、親水性シートの片面に高吸収性ポリマーの層を設けたもの、２枚の親水性シートの間に高吸収性ポリマーを挟持したもの等のシート状の吸収体も使用することができる。また、吸収体の形状は、砂時計型であっても矩形であっても良い。   In the present invention, any absorber can be used as long as it is used for absorbent articles such as ordinary diapers. That is, a combination of a cotton-like pulp and a superabsorbent polymer, a material added with heat-fusible fibers, and the like can be used, and the whole is preferably wrapped with a hydrophilic sheet such as a tissue. In addition, a sheet-like absorbent body such as one in which a superabsorbent polymer layer is provided on one surface of a hydrophilic sheet and a superabsorbent polymer sandwiched between two hydrophilic sheets can also be used. Further, the shape of the absorber may be an hourglass shape or a rectangle.

本発明において、外装部材としては、ポリエチレン、ポリプロピレン、ポリエステル、その他の熱可塑性樹脂を原料とした合成繊維からなる不織布を用いることができる。外装部材は、１層の不織布で形成しても良く、あるいは２層以上の不織布を積層して形成しても良い。   In the present invention, as the exterior member, a nonwoven fabric made of synthetic fibers using polyethylene, polypropylene, polyester, or other thermoplastic resins as raw materials can be used. The exterior member may be formed of a single layer of non-woven fabric, or may be formed by laminating two or more layers of non-woven fabric.

本発明において、ウエスト周り開口部、脚周り開口部及び胴周り部に配置される伸縮弾性体としては、天然系、合成系のウレタン糸、糸ゴム、平ゴム等の通常の使いすておむつに使用される伸縮弾性部材をそのまま使用することができ、これらの伸縮弾性部材を伸長状態で配置し、ホットメルト接着剤などにより接着固定される。   In the present invention, the elastic elastic body disposed in the waist opening, leg opening and trunk periphery is a normal diaper such as natural, synthetic urethane thread, thread rubber, flat rubber, etc. The stretchable elastic member to be used can be used as it is, these stretchable elastic members are arranged in an expanded state, and are bonded and fixed by a hot melt adhesive or the like.

本発明のパンツ型使い捨ておむつは、前身頃と後身頃をその長手方向両側縁部に沿って形成された接合部により接合されて形成されており、且つ、接合部は、その全長の１／２より脚周り開口部側に、複数の接合強度が強い部分が形成されている。そのため、脚周りの大きさが異なる着用者であっても、接合部の脚周り開口部側の接合強度が強い部分を手で引裂いて着用者の脚周りに適合した脚周り開口部を形成することができるため、着用者の肌を傷付けたり、かぶれたりすることがなく、脚周りに良好にフィットさせることが可能であり、さらに、脚周り開口部からの排泄物の漏れを防止することができるため、乳幼児を始めとして成人失禁者用のパンツ型使い捨ておむつとして有用である。   The pants-type disposable diaper of the present invention is formed by joining the front body and the back body by joints formed along both longitudinal side edges, and the joint is 1/2 of the total length. A plurality of portions having high bonding strength are formed on the leg opening side. Therefore, even if the wearer has a different size around the leg, a leg opening that fits around the wearer's leg is formed by tearing a portion of the joint where the joint strength on the leg opening side is strong by hand. It is possible to fit well around the leg without damaging or rashing the wearer's skin, and further, preventing leakage of excrement from the opening around the leg Therefore, it is useful as a pants-type disposable diaper for adult incontinent persons including infants.

本発明のパンツ型使い捨ておむつを組み立てた状態を示す斜視図である。It is a perspective view which shows the state which assembled the underpants type disposable diaper of this invention. 本発明のパンツ型使い捨ておむつの接合部の状態を示す拡大図である。It is an enlarged view which shows the state of the junction part of the underpants type disposable diaper of this invention. 本発明のパンツ型使い捨ておむつの接合部の状態を示す拡大図である。It is an enlarged view which shows the state of the junction part of the underpants type disposable diaper of this invention. 本発明のパンツ型使い捨ておむつの接合部の状態を示す拡大図である。It is an enlarged view which shows the state of the junction part of the underpants type disposable diaper of this invention. 本発明のパンツ型使い捨ておむつの接合部の状態を示す拡大図である。It is an enlarged view which shows the state of the junction part of the underpants type disposable diaper of this invention. 本発明のパンツ型使い捨ておむつの接合部の剥離強度の測定方法を示す説明図である。It is explanatory drawing which shows the measuring method of the peeling strength of the junction part of the underpants type disposable diaper of this invention.

符号の説明Explanation of symbols

１：パンツ型使い捨ておむつ
２：前身頃
３：後身頃
４：股下部
５：接合部
６：ウエスト周り開口部
７：脚周り開口部
８：ウエスト周り伸縮弾性体
９：脚周り伸縮弾性体
９’：伸縮弾性部材
１０：胴周り伸縮弾性体
１１：接合強度が強い接合部
１２：接合強度が弱い接合部
１３：おむつのサイズを示す表示
ｄ：接合部の幅寸法
1: Pants-type disposable diaper 2: Front body 3: Back body 4: Crotch 5: Joint 6: Opening around waist 7: Opening around leg 8: Elastic body around waist 9: Elastic body around leg 9 ' ： Elastic elastic member 10 ： Elastic elastic body around the waist 11 ： Joint portion with high joint strength 12 ： Joint portion with low joint strength 13 ： Indication of diaper size d ： Width dimension of the joint portion

Claims (8)

前身頃と、後身頃と、これら両身頃の間に位置する股下部とを有してなり、前記前身頃と後身頃を股下部で折り畳んで重ね合せ、前身頃と後身頃の相対する長手方向両側縁部を接合してウエスト周り開口部と一対の脚周り開口部を形成し、各開口部に沿ってウエスト周り伸縮弾性体と脚周り伸縮弾性体を配置したパンツ型使い捨ておむつにおいて、
前記前身頃と後身頃の相対する長手方向両側縁部は、前記脚周り開口部から所定長さの領域が、その他の領域を接合している接合部よりも接合強度が強い複数の接合部によって接合されており、該複数の接合強度が強い接合部に隣接しておむつのサイズを表示する手段が配置されていて、脚周り開口部側の接合強度が強い接合部を引き裂いて着用者の脚周りに適合したサイズの脚周り開口部を形成して使用できることを特徴とするパンツ型使い捨ておむつ。 It has a front body, a back body, and a crotch part located between these two body parts. The front body and the back body are folded and overlapped at the crotch part, and the front body and the back body are opposed to each other in the longitudinal direction. In a pants-type disposable diaper in which both side edges are joined to form a waist circumference opening and a pair of leg circumference openings, and a waist circumference elastic body and leg circumference elastic body are arranged along each opening,
The longitudinal opposite side edges of the front body and the back body are formed by a plurality of joints having a region having a predetermined length from the opening around the leg and a joint strength stronger than a joint joining other regions. A means for displaying the size of the diaper is disposed adjacent to the joint having the strong joint strength, and the leg of the wearer's leg is torn by tearing the joint having a strong joint strength on the leg opening side. A pants-type disposable diaper characterized in that it can be used by forming a leg-periphery opening of a size that fits around . 前記脚周り伸縮弾性体が複数本の伸縮弾性部材からなり、それらの複数の伸縮弾性部材のうちの１本以上が前記接合強度が強い接合部又はその近傍に先端部が位置するように配置されていることを特徴とする請求項１記載のパンツ型使い捨ておむつ。   The leg elastic elastic body is composed of a plurality of elastic elastic members, and one or more of the elastic elastic members are arranged so that the distal end portion is located at or near the bonding portion where the bonding strength is strong. The pants-type disposable diaper according to claim 1, wherein 前記脚周り開口部から所定長さの領域は、前記両側縁部の長手方向に１０〜４０ｍｍの間隔で複数の接合強度の強い接合部を形成するように接合されていることを特徴とする請求項１又は請求項２に記載のパンツ型使い捨ておむつ。   The region having a predetermined length from the leg-hole opening is joined to form a plurality of joints having a strong joint strength at intervals of 10 to 40 mm in the longitudinal direction of the side edges. The underpants type disposable diaper of Claim 1 or Claim 2. 前記複数の接合強度の強い接合部の間に接合強度がより低い接合部が形成されていることを特徴とする請求項３に記載のパンツ型使い捨ておむつ。   The pants-type disposable diaper according to claim 3, wherein a joint portion having a lower joint strength is formed between the plurality of joint portions having a high joint strength. 前記脚周り開口部から所定長さの領域の接合強度の強い接合部を含む長手方向両側縁部の剥離強度が６．５〜３５．０Ｎ／２５ｍｍであることを特徴とする請求項１〜請求項４のいずれか１項に記載のパンツ型使い捨ておむつ。   The peel strength at both side edges in the longitudinal direction including a joint portion having a strong joint strength in a region of a predetermined length from the opening around the leg is 6.5 to 35.0 N / 25 mm. The underpants type disposable diaper of any one of claim | item 4. 前記前身頃と後身頃の相対する長手方向両側縁部を接合している接合部の幅寸法が３〜２０ｍｍであることを特徴とする請求項１〜請求項５のいずれか１項に記載のパンツ型使い捨ておむつ。   The width dimension of the joint part which joins the longitudinal direction both side edge part which the said front body and back body oppose is 3-20 mm, The any one of Claims 1-5 characterized by the above-mentioned. Pants-type disposable diaper. 前記前身頃と後身頃の相対する長手方向両側縁部を接合している接合部が、長手方向に間隔をおいて平行に配置されている複数の線状乃至帯状接合部であることを特徴とする請求項１〜請求項６のいずれか１項に記載のパンツ型使い捨ておむつ。   The joints joining the opposite longitudinal side edges of the front body and the back body are a plurality of linear or belt-like joints arranged in parallel at intervals in the longitudinal direction. The underpants-type disposable diaper according to any one of claims 1 to 6. 前記長手方向両側縁部を接合している接合部が、前記前身頃と後身頃の両側縁部をヒートシール処理して形成されており、且つ、前記接合強度が強い接合部と接合強度が弱い接合部がヒートシールパターンを変更することによって形成されていることを特徴とする請求項１〜請求項７のいずれか１項に記載のパンツ型使い捨ておむつ。   The joint part joining the both side edges in the longitudinal direction is formed by heat-sealing both side edges of the front body and the back body, and the joint part having a strong joint strength and the joint strength is weak. The pants-type disposable diaper according to any one of claims 1 to 7, wherein the joint portion is formed by changing a heat seal pattern.
JP2004190932A 2004-06-29 2004-06-29 Pants-type disposable diaper Expired - Fee Related JP4249097B2 (en)

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JP4747071B2 (en) * 2006-10-19 2011-08-10 王子ネピア株式会社 Pants-type disposable diaper
JP4916303B2 (en) * 2006-12-28 2012-04-11 花王株式会社 Method for manufacturing worn article
US8449519B2 (en) 2007-12-20 2013-05-28 Sca Hygiene Products Ab Seam joining together at least two web materials
JP5238568B2 (en) * 2009-03-23 2013-07-17 花王株式会社 Pants-type absorbent article
JP5448513B2 (en) * 2009-03-23 2014-03-19 花王株式会社 Pants-type absorbent article
JP5075901B2 (en) 2009-09-30 2012-11-21 大王製紙株式会社 Absorbent articles
JP5695320B2 (en) * 2010-01-21 2015-04-01 ユニ・チャーム株式会社 Pants-type disposable wearing articles
JP5809941B2 (en) * 2011-11-24 2015-11-11 株式会社リブドゥコーポレーション Disposable diaper manufacturing method
JP5438139B2 (en) * 2012-01-20 2014-03-12 大王製紙株式会社 Pants-type disposable diaper
JP6195302B2 (en) * 2013-11-18 2017-09-13 花王株式会社 Pants-type absorbent article
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