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JP4276368B2 - Disposable pants - Google Patents

Disposable pants
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Publication number
JP4276368B2
JP4276368B2JP2000310981AJP2000310981AJP4276368B2JP 4276368 B2JP4276368 B2JP 4276368B2JP 2000310981 AJP2000310981 AJP 2000310981AJP 2000310981 AJP2000310981 AJP 2000310981AJP 4276368 B2JP4276368 B2JP 4276368B2
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JP
Japan
Prior art keywords
pants
line
joint portion
adhesive
additional
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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JP2002011043A (en
Inventor
健一 内本
巌 松浦
健次 中岡
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Livedo Corp
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Livedo Corp
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Translated fromJapanese

【0001】
【発明の属する技術分野】
本発明は、左右両側のサイド接合部の接合パターンを工夫した使い捨てパンツに関する。
【0002】
【従来の技術】
一般に、使い捨てパンツは、図2に示すように、透液性又は不透液性のバックシート2と、必要により最下層に不透液性シートを備えた吸収体4と、透液性のトップシート3とからなるシート積層体によって構成され、吸収体4を含むシート積層体2,3を前後に2つ折りし、その左右両側を側縁に沿ってヒートシールによるサイド接合部9により接合している。
【0003】
これにより、使い捨てパンツ1の上部には胴部開口5が形成され、左右下部には一対の脚部開口6が形成されると共に、これらの周囲にゴム製の伸縮性弾性部材8a〜8cを添設することによって、ウエスト用ギャザー、ボディフィット用ギャザー、レッグ用ギャザーが形成されるようになる。
【0004】
【発明が解決しようとする課題】
上記のような使い捨てパンツ1においては、従来から左右両側のヒートシールによるサイド接合部9の接合パターンについて様々な工夫がなされている。
【0005】
従来技術(例えば特開平7−227407号公報参照)の接合パターンの基本接合部は、上下方向に所定の間隔を隔てて配列された横長直線状であり、追加接合部は、基本接合部に対して交差又は接触されている縦長直線状であって、かかる第1従来技術では、基本接合部と追加接合部とが交差又は接触することから、この交差部分又は接触部分にヒートシールによる熱集中が発生して穴があく等によって破断しやすくなるという問題がある。
【0006】
本発明は、上記従来の問題を解決するためになされたもので、左右両側のサイド接合部がヒートシールにより破断しにくく、しかも、サイド接合部で伸縮性弾性部材の端の保持を良好に行いつつ、パンツ着用時の強度保持と使用後の破り易さとの好バランスが図れるように接合パターンを工夫した使い捨てパンツを提供することを目的とするものである。
【0007】
【課題を解決するための手段】
上記課題を解決するために、本発明は、吸収体を含むシート積層体を前後に2つ折りし、その左右両側部を側縁に沿って接合してサイド接合部を形成した使い捨てパンツであって、
上記サイド接合部は、ヒートシールによって形成された基本接合部と追加接合部とで構成されており、基本接合部は、上下方向に所定の間隔を隔てて配列された水平直線状の接着線群からなり、追加接合部は、幅方向に2列で上下方向に所定の間隔を隔てて配列された斜行直線状の接着線群からなり、基本接合部は追加接合部に対してパンツ幅方向の内側に配置されるとともに、追加接合部の2列の接着線群は、パンツ胴腹部、股部または/および脚部からパンツ両側側縁に延びる各弾性伸縮部材の端が交差して接着保持されるように配置されていることを特徴とする使い捨てパンツを提供するものである。
【0008】
本発明によれば、サイド接合部の基本接合部を水平直線状の接着線群とし、追加接合部を2列の斜行直線状の接着線群として、基本接合部を追加接合部に対してパンツ幅方向の内側に配置し、追加接合部の2列の接着線群をパンツ胴腹部などからパンツ両側側縁に延びる各弾性伸縮部材の端を交差して接着保持するように配置することにより、基本接合部は、パンツに幅方向の引張負荷を与えた時に、サイド接合部での安易な引きちぎれを防止するために接合の強度保持の機能を行い、追加接合部は、弾性伸縮部材を接着保持するとともに、破り易さを付加した機能を行うことになる。
【0009】
請求項2のように、上記基本接合部を構成する水平直線状の接着線群は、接着線の長さが2〜15mm、幅が0.4〜10mm、接着線間の間隔が0.4〜10mmであるのが好ましい。
【0010】
請求項3のように、上記追加接合部を構成する斜行直線状の接着線群は、接着線の斜行角度がパンツ幅方向の水平線からの反時計回り角度で5〜45度若しくは135〜175度を満足し、長さが2〜14mm、幅が0.4〜10mm、接着線間の間隔が0.4〜10mmであるのが好ましい。
【0011】
請求項4のように、上記追加接合部の2列の接着線群は、一方の列の接着線群の接着線の斜行角度と他方の列の接着線群の接着線の斜行角度とが、パンツ縦方向の垂直線に対して逆対称に形成されているのが好ましい。
【0012】
請求項5のように、上記追加接合部の2列の接着線群は、一方の列の接着線群の接着線の間に、他方の列の接着線群の接着線の端部が臨むように形成されているのが好ましい。
【0013】
請求項6のように、上記基本接合部と追加接合部のパンツ幅方向の全体長さが6〜25mmであるのが好ましい。
【0014】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して詳細に説明する。なお、従来技術と同一構成・作用の箇所は同一番号を付して詳細な説明は省略する。
【0015】
図1の実施形態においては、図2の左右両側のサイド接合部9の内、向かって右側の接合パターンのみを示してあり、左側の接合パターンは右側の接合パターンと対称となる。上記サイド接合部9は、ヒートシールによって形成された基本接合部9Aと追加接合部9B,9Cとで構成されている。
【0016】
上記基本接合部9Aは、上下方向に所定の間隔T1を隔てて配列された水平直線状の接着線9aの接着線群からなり、追加接合部9B,9Cは、幅方向に2列で上下方向に所定の間隔T2を隔てて配列された斜行直線状の接着線9b,9cの接着線群からなっている。
【0017】
上記基本接合部9Aは追加接合部9B,9Cに対してパンツ幅方向の内側に配置される。
【0018】
また、上記追加接合部9B,9Cの2列の接着線群は、パンツ胴腹部、股部または/および脚部からパンツ両側側縁に延びる各弾性伸縮部材8a〜8c(図2参照)の端が交差して接着保持されるように配置される。
【0019】
上記基本接合部9Aを構成する水平直線状の接着線群は、接着線9aの長さL1が2〜15mm、幅W1が0.4〜10mm、接着線間の間隔T1が0.4〜10mmであるのが好ましい。
【0020】
上記長さL1は、2mm未満ではシール部分の強度が不足し、15mmを越えるとシール部分の強度が過剰になって破り易さが損なわれる。この長さL1は3〜9mmであるのが好ましい。
【0021】
上記幅W1は、0.4mm未満ではシール部分の強度が不足し、10mmを越えるとシール部分周囲の素材がパンツ幅方向の引張負荷に耐えきれなくなって切れが生じて穴があく。この幅W1は0.7〜1.0mmであるのが好ましい。
【0022】
上記間隔T1は、0.4mm未満ではシール部分の間隔が狭いために熱シールによる溶けによって切れが生じ易く、10mmを越えるとシール部分のトータル強度を保つことができない。この間隔は0.5〜1.0mmであるのが好ましい。
【0023】
上記追加接合部9B,9Cを構成する斜行直線状の接着線群は、追加接合部9Bでは接着線9bの斜行角度θがパンツ幅方向の水平線からの反時計回り角度で5〜45度、追加接合部9Cでは、接着線9cの斜行角度θがパンツ幅方向の水平線からの反時計回り角度で135〜175度を満足し、かつ長さL2が2〜14mm、幅W2が0.4〜10mm、接着線9c間の間隔T2が0.4〜10mmであるのが好ましい。
【0024】
上記斜行角度θは、5度(または175度)未満では弾性伸縮部材8a〜8cの端を保持することができず、45度(または135度)を越えるとシール部分周囲の素材がパンツ幅方向の引張負荷に耐えきれなくなって切れが生じて穴があく。斜行角度θは20〜35度(または145〜160度)であるのが好ましい。
【0025】
上記斜行接着線長さL2は、2mm未満ではシール部分の強度が不足し、14mmを越えるとシール部分周囲の素材がパンツ幅方向の引張負荷に耐えきれなくなって切れが生じて穴があく。この斜行接着線長さL2は2.5〜5.0mmであるのが好ましい。
【0026】
上記幅W2は、0.4mm未満では弾性伸縮部材8a〜8cの端の保持が十分でなくなり、10mmを越えるとサイド接合部9の全体長さが長くなり過ぎて実用的でない。この幅W2は0.7〜1.0mmであるのが好ましい。
【0027】
上記斜行接着線間の間隔T2は、0.4mm未満であれば、シール部分の間隔が狭いために熱シールによる溶けにより切れが生じ易くなり、10mmを越えるとサイド接合部9の全体長さが長くなり過ぎて実際的でない。この斜行接着線間の間隔T2は0.5〜1.0mmであるのが好ましい。
【0028】
上記追加接合部9B,9Cの2列の接着線群は、一方の列の接着線群の接着線9bの斜行角度θと他方の列の接着線群の接着線9cの斜行角度θとが、パンツ縦方向の垂直線Vに対して逆対称に形成されているのが好ましい。
【0029】
また、上記追加接合部9B,9Cの2列の接着線群は、一方の列の接着線群の接着線9bの間に、他方の列の接着線群の接着線9cの端部9dが臨むように形成されているのが好ましい。
【0030】
上記基本接合部9Aと追加接合部9B,9Cのパンツ幅方向の全体長さL3は、6〜25mmであるのが好ましい。
【0031】
上記全体長さL3は、6mm未満であればシール部分の強度や弾性伸縮部材8a〜8cの端の保持に満足した効果を得ることが難しく、25mmを越えるとサイド接合部9の全体長さが長くなり過ぎて実用的でない。
【0032】
上記のように使い捨てパンツ1のサイド接合部9を構成すれば、サイド接合部9の基本接合部9Aを水平直線状の接着線群とし、追加接合部9B,9Cを2列の斜行直線状の接着線群として、基本接合部9Aを追加接合部9B,9Cに対してパンツ幅方向の内側に配置し、追加接合部9B,9Cの2列の接着線群をパンツ胴腹部などからパンツ両側側縁に延びる各弾性伸縮部材8a〜8cの端を交差して接着保持するように配置することにより、基本接合部9Aは、パンツに幅方向の引張負荷を与えた時にサイド接合部9での安易な引きちぎれを防止するために接合の強度保持の機能を行い、追加接合部9B,9Cは、弾性伸縮部材8a〜8cを接着保持するとともに、破り易さを付加した機能を行うことから、サイド接合部9は、通常の引張負荷程度では破れずに、適度な方向及び引張負荷でのみ破れ易くなるので、サイド接合部9で伸縮性弾性部材8a〜8cの端の保持を良好に行いつつ、パンツ着用時の強度保持と使用後の破り易さとの好バランスを図ることができる。
【0033】
また、基本接合部9Aと追加接合部9B,9Cとが交差又は接触することが無いことから、従来技術のようなヒートシールによる熱集中が発生しなくなり、サイド接合部9がヒートシールにより破断しにくくなって強固な接合が可能となる。
【0034】
【発明の効果】
以上の説明からも明らかなように、本発明は、サイド接合部の基本接合部を水平直線状の接着線群とし、追加接合部を2列の斜行直線状の接着線群として、基本接合部を追加接合部に対してパンツ幅方向の内側に配置し、追加接合部の2列の接着線群をパンツ胴腹部などからパンツ両側側縁に延びる各弾性伸縮部材の端を交差して接着保持するように配置することにより、基本接合部は、パンツに幅方向の引張負荷を与えた時に、サイド接合部での安易な引きちぎれを防止するために接合の強度保持の機能を行い、追加接合部は、弾性伸縮部材を接着保持するとともに、破り易さを付加した機能を行うことから、サイド接合部は、通常の引張負荷程度では破れずに、適度な方向及び引張負荷でのみ破れ易くなるので、サイド接合部で伸縮性弾性部材の端の保持を良好に行いつつ、パンツ着用時の強度保持と使用後の破り易さとの好バランスを図ることができる。
【0035】
また、基本接合部と追加接合部とが交差又は接触することが無いことから、従来技術のようなヒートシールによる熱集中が発生しなくなり、サイド接合部がヒートシールにより破断しにくくなって強固な接合が可能となる。
【図面の簡単な説明】
【図1】 本発明のサイド接合部の接合パターン図である
【図2】 使い捨てパンツの正面図である。
【符号の説明】
1 使い捨てパンツ
2 バックシート
3 トップシート
4 吸収体
8a〜8c 弾性伸縮部材
9 接合部
9A 基本接合部
9B 追加接合部
9C 追加接合部
9a〜9c 接着線
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable pant with a devised joint pattern of side joints on both the left and right sides.
[0002]
[Prior art]
In general, as shown in FIG. 2, the disposable pants include a liquid-permeable or liquid-impervious back sheet 2, anabsorbent body 4 having a liquid-impervious sheet as a lowermost layer as necessary, and a liquid-permeable top. The sheet laminates 2 and 3 including theabsorbent body 4 are folded back and forth, and the left and right sides thereof are joined along the side edges by theside joining portions 9 by heat sealing. Yes.
[0003]
Thereby, atrunk opening 5 is formed in the upper part of the disposable pants 1, a pair ofleg openings 6 is formed in the left and right lower parts, and rubber elasticelastic members 8a to 8c are attached around these. As a result, waist gathers, body fit gathers, and leg gathers are formed.
[0004]
[Problems to be solved by the invention]
In the disposable pants 1 as described above, various contrivances have conventionally been made with respect to the bonding pattern of the side bondingportions 9 by heat sealing on the left and right sides.
[0005]
The basic joint part of the joining pattern of the prior art (see, for example, JP-A-7-227407) is a horizontally long straight line arranged at a predetermined interval in the vertical direction, and the additional joint part is In the first conventional technology, since the basic joint and the additional joint intersect or contact each other, heat concentration due to heat sealing is caused at the intersection or contact. There is a problem that it is easy to break due to the occurrence of a hole or the like.
[0006]
The present invention has been made to solve the above-described conventional problems, and the side joint portions on both the left and right sides are not easily broken by heat sealing, and the end portions of the elastic elastic member are favorably held at the side joint portions. On the other hand, it is an object of the present invention to provide a disposable pant having a devised joint pattern so as to achieve a good balance between strength maintenance at the time of wearing the pant and ease of tearing after use.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is a disposable pant in which a sheet laminate including an absorbent body is folded in two back and forth, and both left and right side portions are joined along side edges to form side joints. ,
The side joint portion is composed of a basic joint portion formed by heat sealing and an additional joint portion, and the basic joint portion is a group of horizontal linear adhesive lines arranged at predetermined intervals in the vertical direction. The additional joint portion is composed of a group of slanted straight adhesive lines arranged in two rows in the width direction at a predetermined interval in the vertical direction, and the basic joint portion is in the width direction of the pants with respect to the additional joint portion. The adhesive line group of two rows of additional joints is bonded and held by crossing the ends of elastic elastic members extending from the pants waist, crotch or / and the legs to the pants side edges. Disposable pants characterized by being arranged as described above.
[0008]
According to the present invention, the basic joint portion of the side joint portion is a horizontal linear adhesive line group, the additional joint portion is a two-row oblique linear adhesive line group, and the basic joint portion is relative to the additional joint portion. By arranging the adhesive line group of two rows of additional joints so as to cross and bond and hold the ends of the elastic elastic members extending from the pant trunk abdomen to the side edges of the pants on the inner side in the width direction of the pants The basic joint functions to maintain the strength of the joints to prevent easy tearing at the side joints when a tensile load in the width direction is applied to the pants, and the additional joints adhere the elastic elastic members A function that adds holdability and ease of tearing is performed.
[0009]
As in claim 2, the horizontal linear bond line group constituting the basic joint has a bond line length of 2 to 15 mm, a width of 0.4 to 10 mm, and an interval between the bond lines of 0.4. It is preferably 10 mm.
[0010]
According to a third aspect of the present invention, the skewed linear bond line group constituting the additional joint portion has a skew angle of 5 to 45 degrees or 135 to 35 degrees in a counterclockwise angle from a horizontal line in the width direction of the pants. It is preferable that 175 degrees is satisfied, the length is 2 to 14 mm, the width is 0.4 to 10 mm, and the distance between the bonding lines is 0.4 to 10 mm.
[0011]
As inclaim 4, the two bonding line groups of the additional joint portion include an oblique angle of the adhesive line of the adhesive line group of one column and an oblique angle of the adhesive line of the adhesive line group of the other column. However, it is preferable that it is formed in reverse symmetry with respect to the vertical line of the underpants longitudinal direction.
[0012]
As inclaim 5, in the two bonding line groups of the additional bonding portion, the end of the bonding line of the other bonding line group faces between the bonding lines of the one bonding line group. It is preferable that it is formed.
[0013]
As inclaim 6, it is preferable that the overall length of the basic joint portion and the additional joint portion in the pants width direction is 6 to 25 mm.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same number is attached | subjected to the location of the same structure and effect | action as a prior art, and detailed description is abbreviate | omitted.
[0015]
In the embodiment of FIG. 1, only the right side joining pattern is shown among theside joining parts 9 on both the left and right sides of FIG. 2, and the left side joining pattern is symmetrical with the right side joining pattern. Theside joint 9 is composed of abasic joint 9A andadditional joints 9B and 9C formed by heat sealing.
[0016]
Thebasic joint portion 9A is composed of an adhesive line group of horizontal linearadhesive lines 9a arranged at a predetermined interval T1 in the vertical direction, and the additionaljoint portions 9B and 9C are vertically arranged in two rows in the width direction. Are formed of an adhesive line group of oblique linearadhesive lines 9b and 9c arranged at a predetermined interval T2.
[0017]
9 A of said basic junction parts are arrange | positioned inside pants width direction with respect to theadditional junction parts 9B and 9C.
[0018]
Further, the adhesive bond groups in two rows of the additionaljoint portions 9B and 9C are the ends of the elasticelastic members 8a to 8c (see FIG. 2) extending from the pant trunk, the crotch portion, and / or the leg portions to both side edges of the pants. Are arranged so as to be bonded and held crossing each other.
[0019]
The horizontal linear bond line group constituting thebasic joint 9A has a length L1 of thebond line 9a of 2 to 15 mm, a width W1 of 0.4 to 10 mm, and an interval T1 between the bond lines of 0.4 to 10 mm. Is preferred.
[0020]
If the length L1 is less than 2 mm, the strength of the seal portion is insufficient. If the length L1 exceeds 15 mm, the strength of the seal portion becomes excessive and the ease of tearing is impaired. This length L1 is preferably 3 to 9 mm.
[0021]
If the width W1 is less than 0.4 mm, the strength of the seal portion is insufficient. If the width W1 exceeds 10 mm, the material around the seal portion cannot withstand the tensile load in the pant width direction, causing a cut and a hole. The width W1 is preferably 0.7 to 1.0 mm.
[0022]
If the distance T1 is less than 0.4 mm, the gap between the seal portions is narrow, so that the gap is likely to be broken by melting by heat sealing, and if it exceeds 10 mm, the total strength of the seal portion cannot be maintained. This interval is preferably 0.5 to 1.0 mm.
[0023]
The skewed linear bond line group constituting theadditional joints 9B and 9C has a skew angle θ of thebond line 9b of the additional joint 9B of 5 to 45 degrees in a counterclockwise angle from the horizontal line in the pants width direction. In the additionaljoint portion 9C, the skew angle θ of thebonding line 9c satisfies 135 to 175 degrees in the counterclockwise angle from the horizontal line in the pants width direction, the length L2 is 2 to 14 mm, and the width W2 is 0.1. The distance T2 between 4 to 10 mm and thebonding line 9c is preferably 0.4 to 10 mm.
[0024]
If the skew angle θ is less than 5 degrees (or 175 degrees), the ends of the elasticelastic members 8a to 8c cannot be held. If the skew angle θ exceeds 45 degrees (or 135 degrees), the material around the seal portion is the width of the pants. Can no longer withstand the tensile load in the direction, causing cuts and holes. The skew angle θ is preferably 20 to 35 degrees (or 145 to 160 degrees).
[0025]
If the slanting bond line length L2 is less than 2 mm, the strength of the seal portion is insufficient, and if it exceeds 14 mm, the material around the seal portion cannot withstand the tensile load in the pant width direction, causing a cut and a hole. The skew bonding line length L2 is preferably 2.5 to 5.0 mm.
[0026]
If the width W2 is less than 0.4 mm, the ends of the elasticelastic members 8a to 8c are not sufficiently held, and if it exceeds 10 mm, the entire length of the sidejoint portion 9 becomes too long, which is not practical. The width W2 is preferably 0.7 to 1.0 mm.
[0027]
If the distance T2 between the oblique bond lines is less than 0.4 mm, the gap between the seal portions is narrow, and therefore, the gap is likely to be broken by melting by heat sealing. Is too long to be practical. The interval T2 between the oblique bond lines is preferably 0.5 to 1.0 mm.
[0028]
The two bonding line groups of theadditional joints 9B and 9C are composed of the skew angle θ of thebonding line 9b of the bonding line group of one column and the skew angle θ of thebonding line 9c of the bonding line group of the other column. However, it is preferable that it is formed in reverse symmetry with respect to the vertical line V in the pants vertical direction.
[0029]
In addition, in the two bonding line groups of theadditional bonding portions 9B and 9C, theend part 9d of thebonding line 9c of the bonding line group of the other row faces between thebonding lines 9b of the bonding line group of one column. It is preferable to be formed as described above.
[0030]
The overall length L3 in the pants width direction of the basicjoint portion 9A and the additionaljoint portions 9B and 9C is preferably 6 to 25 mm.
[0031]
If the total length L3 is less than 6 mm, it is difficult to obtain a satisfactory effect for the strength of the seal portion and the holding of the ends of the elasticelastic members 8a to 8c. Too long and impractical.
[0032]
If the sidejoint portion 9 of the disposable pants 1 is configured as described above, the basicjoint portion 9A of the sidejoint portion 9 is set as a horizontal linear bond line group, and the additionaljoint portions 9B and 9C are formed in two rows of oblique straight lines. As the bonding line group, thebasic bonding part 9A is arranged on the inner side in the pants width direction with respect to theadditional bonding parts 9B and 9C, and the two bonding line groups of theadditional bonding parts 9B and 9C are arranged on both sides of the pant from the pant waist and the like. By arranging the elasticelastic members 8a to 8c extending to the side edges so as to cross and hold the elastic bonding members 8A to 8c, the basicjoint portion 9A is provided with the sidejoint portion 9 when a tensile load in the width direction is applied to the pants. In order to prevent easy tearing, the function of maintaining the strength of the joint is performed, and the additionaljoint portions 9B and 9C adhere and retain the elasticelastic members 8a to 8c, and also perform the function of adding ease of tearing. The joint 9 is Since it does not break at the load level, it can be easily broken only in an appropriate direction and tensile load. Therefore, the sidejoint portion 9 can hold the ends of the elasticelastic members 8a to 8c well and maintain and use strength when wearing pants. A good balance can be achieved with the ease of subsequent breaks.
[0033]
In addition, since the basicjoint portion 9A and the additionaljoint portions 9B and 9C do not cross or come into contact with each other, heat concentration due to heat sealing as in the prior art does not occur, and the sidejoint portion 9 breaks due to heat sealing. It becomes difficult and strong joining becomes possible.
[0034]
【The invention's effect】
As is apparent from the above description, the present invention provides a basic joint in which the basic joint portion of the side joint portion is a horizontal linear bond line group, and the additional joint portion is a two-row oblique linear bond line group. The part is arranged inside the pants width direction with respect to the additional joint part, and the adhesive line group of two rows of the additional joint part is bonded by crossing the ends of the elastic elastic members extending from the pant waist part to the side edges of the pants. By arranging to hold, the basic joint performs the function of maintaining the strength of the joint to prevent easy tearing at the side joint when a tensile load in the width direction is applied to the pants, and additional joining The part adheres and holds the elastic expansion and contraction member, and performs the function of adding ease of tearing. Therefore, the side joint part is not torn at a normal tensile load, but is easily torn only at an appropriate direction and a tensile load. So, elastic bullets at the side joints While satisfactorily perform holding of the end of the member, it is possible to achieve a good balance between ease breaking after use and strength retention at the time of the pants worn.
[0035]
In addition, since the basic joint and the additional joint do not cross or come into contact with each other, heat concentration due to heat sealing as in the prior art does not occur, and the side joint is not easily broken by heat sealing and is strong. Joining is possible.
[Brief description of the drawings]
FIG. 1 is a bonding pattern diagram of a side bonding portion according to the present invention. FIG. 2 is a front view of disposable pants.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disposable pants 2 Back sheet 3Top sheet 4Absorber 8a-8c Elastic expansion-contraction member 9Joint part 9A Basicjoint part 9B Additionaljoint part 9C Additionaljoint part 9a-9c Bonding line

Claims (6)

Translated fromJapanese
吸収体を含むシート積層体を前後に2つ折りし、その左右両側部を側縁に沿って接合してサイド接合部を形成した使い捨てパンツであって、
上記サイド接合部は、ヒートシールによって形成された基本接合部と追加接合部とで構成されており、
基本接合部は、上下方向に所定の間隔を隔てて配列された水平直線状の接着線群からなり、
追加接合部は、幅方向に2列で上下方向に所定の間隔を隔てて配列された斜行直線状の接着線群からなり、
基本接合部は追加接合部に対してパンツ幅方向の内側に配置されるとともに、
追加接合部の2列の接着線群は、パンツ胴腹部、股部または/および脚部からパンツ両側側縁に延びる各弾性伸縮部材の端が交差して接着保持されるように配置され
基本接合部と追加接合部とが交差または接触していないことを特徴とする使い捨てパンツ。
Disposable pants in which the sheet laminate including the absorbent body is folded back and forth and the left and right sides are joined along the side edges to form side joints,
The side joint is composed of a basic joint formed by heat sealing and an additional joint,
The basic joint portion is composed of a group of horizontal linear adhesive lines arranged at predetermined intervals in the vertical direction,
The additional joint portion is composed of a group of oblique linear adhesive lines arranged in two rows in the width direction and at a predetermined interval in the vertical direction,
The basic joint is arranged inside the pants width direction with respect to the additional joint,
The two lines of the bonding line of the additional joint portion are arranged so that the ends of the elastic elastic members extending from the pants trunk, the crotch or / and the legs to the side edges of the pants cross and are bonded and held,
Disposable pants characterized in that thebasic joint and the additional joint do not intersect or contact each other .
上記基本接合部を構成する水平直線状の接着線群は、接着線の長さが2〜15mm、幅が0.4〜10mm、接着線間の間隔が0.4〜10mmである請求項1記載の使い捨てパンツ。  The horizontal linear bond line group constituting the basic joint portion has a bond line length of 2 to 15 mm, a width of 0.4 to 10 mm, and an interval between the bond lines of 0.4 to 10 mm. The disposable pants described. 上記追加接合部を構成する斜行直線状の接着線群は、接着線の斜行角度がパンツ幅方向の水平線からの反時計回り角度で5〜45度若しくは135〜175度を満足し、長さが2〜14mm、幅が0.4〜10mm、接着線間の間隔が0.4〜10mmである請求項1または2記載の使い捨てパンツ。  The skewed linear bond line group constituting the additional joint portion satisfies the angle of skew of the bond line of 5 to 45 degrees or 135 to 175 degrees in the counterclockwise angle from the horizontal line in the width direction of the pants. The disposable pants according to claim 1 or 2, wherein the length is 2 to 14 mm, the width is 0.4 to 10 mm, and the distance between the bonding lines is 0.4 to 10 mm. 上記追加接合部の2列の接着線群は、一方の列の接着線群の接着線の斜行角度と他方の列の接着線群の接着線の斜行角度とが、パンツ縦方向の垂直線に対して逆対称に形成されている請求項1〜3のいずれかに記載の使い捨てパンツ。  In the two bonding line groups of the additional joint portion, the oblique angle of the adhesive line of the adhesive line group of one column and the oblique angle of the adhesive line of the adhesive line group of the other column are perpendicular to the vertical direction of the pants. The disposable pants according to any one of claims 1 to 3, wherein the disposable pants are formed in reverse symmetry with respect to the line. 上記追加接合部の2列の接着線群は、一方の列の接着線群の接着線の間に、他方の列の接着線群の接着線の端部が臨むように形成されている請求項1〜4のいずれかに記載の使い捨てパンツ。  The two lines of the adhesive line group of the additional joint portion are formed such that an end of the adhesive line of the adhesive line group of the other row faces between the adhesive lines of the adhesive line group of the one line. Disposable pants according to any one of 1 to 4. 上記基本接合部と追加接合部のパンツ幅方向の全体長さが6〜25mmである請求項1〜5のいずれかに記載の使い捨てパンツ。  The disposable pants according to any one of claims 1 to 5, wherein the overall length of the basic joint portion and the additional joint portion in the pants width direction is 6 to 25 mm.
JP2000310981A2000-04-282000-10-11 Disposable pantsExpired - LifetimeJP4276368B2 (en)

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