JP4015505B2 - Disposable items - Google Patents

Disposable items Download PDF

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Publication number
JP4015505B2
JP4015505B2 JP2002234512A JP2002234512A JP4015505B2 JP 4015505 B2 JP4015505 B2 JP 4015505B2 JP 2002234512 A JP2002234512 A JP 2002234512A JP 2002234512 A JP2002234512 A JP 2002234512A JP 4015505 B2 JP4015505 B2 JP 4015505B2
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Japan
Prior art keywords
tape
nonwoven fabric
disposable
fixed
adhesive
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JP2002234512A
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JP2004073297A (en
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俊夫 村中
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Daio Paper Corp
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Daio Paper Corp
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  • Absorbent Articles And Supports Therefor (AREA)
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Description

【0001】
【発明の属する技術分野】
本発明は、使い捨て用品に関し、特に使い捨ておむつや使い捨て下着類や使い捨て衛生用品などにおいて、それを構成する不織布に、廃棄時に結束するための後処理テープや、使用者に装着するための止着テープなどの他の部材を固着した使い捨て用品に関するものである。
【0002】
【従来の技術】
例えば、フラット型の使い捨ておむつは、液不透過性シートの外面に不織布を貼り合わせてクロス状の感触を持たせてなる外面シートと不織布からなる内面シートとの間に吸収体を介在させた構成で、前ウェスト部から股間部を経て後ウェスト部に至る縦長形状に形成され、かつ前ウェスト部と後ウェスト部にそれぞれ両側外方に延出する前サイドフラップと後サイドフラップが設けられている。後サイドフラップには止着テープが設けられ、前ウェスト部にフロントターゲットテープが設けられており、着用者の背側に後ウェスト部を、腹側に前ウェスト部を当てがって、後サイドフラップの止着テープを前ウェスト部のフロントターゲットテープに止着することで、この使い捨ておむつを装着するように構成されている。
【0003】
また、パンツ型の使い捨ておむつは、フラット型使い捨ておむつの前サイドフラップと後サイドフラップを予め接合して、左右一対の脚開口部と胴開口部を形成したもので、基本的構造はフラット型と同様である。
【0004】
このような使い捨ておむつを使用した後廃棄する際には、フラット型の場合は止着テープを利用し、パンツ型の場合は後面上部にZ字状又はV字状に折り畳んだ状態で配設されている後処理テープを用いて、小さく巻いたり、折り畳んだりした状態で結束して廃棄するようになされている。
【0005】
上記止着テープや後処理テープは、図7(a)に示すように、使い捨ておむつの表面を覆っている不織布51にテープ52の一端部を粘着材やホットメルト接着材などの接着材層53を介して固着して取付けられている。
【0006】
【発明が解決しようとする課題】
ところが、テープ52を不織布51に接着材層53を介して固着した場合、図7(b)に示すように、テープ52に大きな剥離力が作用した時に、接着材層53が不織布51の表面に接着されていても、不織布51に層間剥離を生じてテープ52が外れてしまうことや、不織布51の繊維に粘着材が十分に浸透せず強固に接着されず、接着材層53が容易に剥がれてしまうことがあるという問題があった。
【0007】
本発明は、上記従来の問題点に鑑み、不織布に固着される他の部材の固着性能を向上できる使い捨て用品を提供することを目的とする。
【0008】
【課題を解決するための手段】
本発明は、使い捨て用品を構成する不織布の一部に他の部材を固着した使い捨て用品において、不織布の固着部位を、その固着部位の全面にわたって不織布を構成している繊維を圧密させた状態で相互に融着させた圧密融着部にて構成し、この圧密融着部に他の部材を接着剤にて接着固定したものである。
【0009】
この構成によれば、不織布が、低融点材料の繊維や、高融点材料をコアにしその表面を低融点材料で被覆した繊維を用いている場合に、他の部材の固着部位の全面を加熱加圧して圧密融着部とし、この圧密融着部に他の部材を接着剤にて接着固定することで、不織布と他の部材間に大きな剥離力が作用した場合でも不織布の層間隔離を生じず、また不織布の圧密融着部表面の平滑性が増し粘着材等の接着剤と繊維との接着強度が増すので、他の部材の固着性能を向上することができる。
【0010】
また、他の部材が、不織布に一端部が固着され、他端部に設けられた接着部を外面の任意の箇所に接着可能なテープである場合に、前記圧密融着部にテープの一端部を固着すると、大きな剥離力が作用するテープの固着部においても不織布の層間隔離を生じず、また不織布の圧密融着部表面がフラットとなって粘着材等と繊維との接着強度が増すので、テープの固着性能を向上できて大きな効果を発揮する。
【0012】
また、テープは、使い捨て用品の廃棄時に結束する後処理テープや、フラット型使い捨ておむつを装着する止着テープに好適に適用できる。
【0013】
また、止着テープの固着部を、使い捨ておむつを構成する外面シートと内面シートの不織布からなるテープ固着部位間に挿入し、固着部両面と両シートのテープ固着部位を固着すると、止着テープを一層強固に取付けることができる。
【0014】
【発明の実施の形態】
以下、添付図面を参照して本発明を使い捨ておむつに適用した実施形態について説明し、本発明の理解に供する。なお、以下に示す実施形態は本発明を具体化した一例であって、本発明の技術的範囲を限定するものではない。
【0015】
まず、本発明を、後処理テープを固着したパンツ型の使い捨ておむつに適用した第1の実施形態について、図1〜図3を参照して説明する。
【0016】
図1において、1はパンツ型の不織布を用いた使い捨ておむつで、PEシートなどの液不透過性シート2bの外面に不織布2aを貼り合わせてクロス状の感触を持たせてなる外面シート2と不織布からなる内面シート3とそれらの間に配置された吸収体4にて構成された長方形状のシート基材5が用いられている。このシート基材5の中央両側部にえぐり部5aを形成して中央で折り曲げ、両側縁部5b同士をヒートシールにて接続することで胴部6を形成するとともに、えぐり部5aにて脚開口部7を形成して構成されている。胴部6の胴開口部8には紐ゴム9が内蔵され、脚開口部7の回りにも紐ゴム10が内蔵されている。
【0017】
このような使い捨ておむつ1の胴部6の後側の表面に、使い捨ておむつ1をかさ低く折り畳んだ状態で結束して廃棄するための後処理テープ11が配設されている。後処理テープ11は、図2(a)に示すように、基片部12と内側剥離片部13と外側剥離片部14がZ字状に折り畳まれた状態で、その基片部12が粘着材層15を介して外面シート2の不織布2aに固着されている。内側剥離片部13は基片部12上に折り畳まれた状態を保つように粘着材層16にて粘着され、外側剥離片部14の内側剥離片部13に対向する面に結束時に止着するための粘着材層17が設けられ、この粘着材層17にて内側剥離片部13上に折り畳まれた状態を保っている。
【0018】
この使い捨ておむつ1を廃棄する際には、小さく折り畳んだ状態で、図2(b)に示すように、後処理テープ11の外側剥離片部14を持って引き剥がして後処理テープ11を引き延ばし、外側剥離片部14の粘着材層17を使い捨ておむつ1の外面の適所に接着させることで、使い捨ておむつ1を小さく折り畳んだ状態で結束して廃棄する。
【0019】
本実施形態では、このような後処理テープ11の基片部12が外面シート2の不織布2aから容易に外れるのを防止するため、図3に示すように、不織布2aのテープ固着部位18を、図3(b)に示すように、加熱加圧することで不織布2aを構成している繊維を圧密させた状態で相互に融着させた圧密融着部19とし、この圧密融着部19に粘着材層15を介して後処理テープ11の基片部12を固着している。
【0020】
不織布2aはPETやPPなどの高融点材料をコアにしその表面をPE低融点材料で被覆したバイコンポーネント繊維を用いており、圧密融着部19は、加圧加熱治具にて0.2〜2.0kg/cm2 程度の圧力で加圧しつつ、50〜200℃程度の温度で加熱することによって形成している。また、粘着材層15、16、17としては、例えばスチレン系ブロックポリマーを主剤とするものを用い、具体的にはスチレン−ブチレン−スチレンブロック共重合体(SBS)、スチレン−イソブチレン−スチレンブロック共重合体(SIS)などが用いられる。
【0021】
このように不織布2aのテープ固着部位18に圧密融着部19を形成することで、圧密融着部19を形成しなかった場合に、対不織布90度剥離強度が335gf/15mmであったのに対して、925gf/15mmの対不織布90度剥離強度が得られた。
【0022】
上記実施形態の説明では、後処理テープ11を粘着材層15にてテープ固着部位18に固着した例を示したが、ホットメルト接着材などのその他の接着材にて接着しても良く、また後処理テープ11に低融点材料層が設けられている場合には後処理テープ11の基片部12と圧密融着部19を加熱溶融させて一体固着してもよく、その場合もテープ固着部位18を圧密融着部19とすることで不織布2aの層間剥離を防止して高い固着力が確保される。さらに不織布表面がフラットになるため、粘着材層(接着材層)15が均一に圧密融着部19に接触し、不織布2aと後処理テープ11とを強固に接着することができる。
【0023】
次に、本発明を、止着テープを固着したフラット型の使い捨ておむつに適用した第2の実施形態について、図4、図5を参照して説明する。
【0024】
図4において、使い捨ておむつ21は、図5に示すように、PEシートなどの液不透過性シート22bの外面に不織布22aを貼り合わせてクロス状の感触を持たせてなる外面シート22と不織布からなる内面シート23との間に吸収体24を介在させた構成で、前ウェスト部25から股間部26を経て後ウェスト部27に至る縦長形状に形成されている。
【0025】
前ウェスト部25と後ウェスト部27間では、吸収体24の両側部に、糸ゴム等の弾性伸縮部材を伸長状態にして配置してシート23に接合することで立体ギャザー部28及びギャザリングされた外縁部29が形成され、前ウェスト部25と後ウェスト部27では、発泡ポリウレタンなどの弾性伸縮部材をギャザリングしたシート22、23に接合することでウェストにフィットするように構成されている。前ウェスト部25及び後ウェスト部27には、それぞれ両側外方に延出する前サイドフラップ31と後サイドフラップ32が設けられている。
【0026】
後サイドフラップ32には止着テープ33が設けられ、前ウェスト部25には止着テープ33の止着面となるフロントターゲットテープ34が設けられている。フロントターゲットテープ34は、その表面に止着面を構成する易剥離面が設けられ、また目印線34aが表示されている。
【0027】
この使い捨ておむつ21の装着時には、着用者の背側に後ウェスト部27、腹側に前ウェスト部25を当てがい、目印線34aを目安に着用者の体格、体型に応じて止着テープ33の止着位置を決め、フロントターゲットテープ34に止着する。この止着テープ33の止着によりレッグ開口部が形成され、着用者の股部分を外縁部29で包み込み、その内側に立体ギャザー部28が位置して尿漏れが防止される。
【0028】
このような全体構成の使い捨ておむつ21において、止着テープ33は、図5に示すように、遊端部にフロントターゲットテープ34に対する止着部35が設けられ、基端部の固着部36が外面シート22の不織布22aと不織布から成る内面シート23との間に挿入配置され、また不織布22aと内面シート23のテープ固着部位38は加熱加圧され、不織布を構成している繊維を圧密させた状態で相互に融着させた圧密融着部39とされ、固着部36の両面がホットメルト接着材37を介して不織布22aと内面シート23に接着されている。
【0029】
このように、止着テープ33の固着部36を外面シート22と内面シート23の間に挿入し、両シート22、23のテープ固着部位38を不織布の圧密融着部39としてホットメルト接着材37にて加熱接着することにより、止着テープ33が強固に固着され、不測に外れるのを確実に防止することができる。
【0030】
なお、本実施形態では止着テープ33の固着部36を外面シート22と内面シート23の間に挿入しているので、止着テープ33の固着強度を高くできるが、単純に固着部36をホットメルト接着材37にて内面シート23に接着するようにしてもよい。また、その他の接着材を用いて接着しても良く、また両者を相互に加熱融着しても良く、その場合にも不織布のテープ固着部位38を圧密融着部39とすることで、不織布の層間剥離を無くして高い接着力を安定して得ることができる。さらに不織布表面がフラットになるため、ホットメルト接着材37が均一に圧密融着部39に接触し、不織布と止着テープ33とを強固に接着することができる。
【0031】
次に、本発明を、フラット型の使い捨ておむつの内面シートと吸収体の固着に適用した第3の実施形態について、図6を参照して説明する。
【0032】
図6において、41は使い捨ておむつで、PEシートなどの液不透過性シートの外面に不織布を貼り合わせてクロス状の感触を持たせてなる外面シート42と不織布からなる内面シート43との間に、クレープ紙などでくるまれた吸収体44が介在されている。そして、内面シート43と、吸収体44外面のクレープ紙や外面シート42が、複数条のスパイラル状ホットメルト接着材45にて接着されている。本実施形態では、この内面シート43のスパイラル状のホットメルト接着材45にて接着される接着部位46を予め加熱加圧することで、不織布を構成している繊維を圧密させた状態で相互に融着させた圧密融着部47としている。従って、内面シート43と吸収体44をくるんでいるクレープ紙などとの固着が、内面シート43を構成する不織布の層間剥離によって不測に剥がれてしまうというようなことがなく、内面シート43と吸収体44とがホットメルト接着材45にて高い接着力で固着されている。さらに不織布表面がフラットになるため、ホットメルト接着材45が均一に圧密融着部47に接触し、不織布と吸収体44とを強固に接着することができる。
【0033】
かくして、本実施形態によれば、使用中に内面シート43と吸収体44が分離して異物感や不快感を与える恐れがなく、使用感を向上することができる。
【0034】
【発明の効果】
本発明の使い捨て用品によれば、不織布の固着部位を、その固着部位の全面にわたって不織布を構成している繊維を圧密させた状態で相互に融着させた圧密融着部にて構成し、この圧密融着部に他の部材を接着剤にて接着固定したので、不織布が、低融点材料の繊維や、高融点材料をコアにしその表面を低融点材料で被覆した繊維を用いている場合に、固着部位を加熱加圧して圧密融着部とし、この圧密融着部に他の部材を接着剤にて接着固定することで、不織布と他の部材間に大きな剥離力が作用した場合でも不織布の層間隔離を生じず、また不織布の圧密融着部表面がフラットとなって粘着材等の接着剤と繊維との接着強度が増すので、他の部材の固着性能を向上することができる。
【図面の簡単な説明】
【図1】本発明の第1の実施形態の使い捨ておむつの斜視図である。
【図2】図1のA−A矢視拡大断面を示し、(a)は折り畳み状態の断面図、(b)は使用時の状態の断面図である。
【図3】同実施形態の要部構成を示し、(a)は使い捨ておむつの全体正面図、(b)は(a)のB−B矢視拡大断面図である。
【図4】本発明の第2の実施形態の使い捨ておむつの斜視図である。
【図5】同実施形態の要部構成を示す拡大断面模式図である。
【図6】本発明の第3の実施形態の使い捨ておむつの分解斜視図である。
【図7】従来例の使い捨ておむつにおけるテープ固着構造を示し、(a)は拡大断面図、(b)は剥離力が作用した時の状態を示す拡大断面図である。
【符号の説明】
1 使い捨ておむつ
2 外面シート
2a 不織布
11 後処理テープ
15 粘着材層
18 テープ固着部位
19 圧密融着部
21 使い捨ておむつ
22 外面シート
22a 不織布
33 止着テープ
37 ホットメルト接着材
38 テープ固着部位
39 圧密融着部
41 使い捨ておむつ
43 内面シート
44 吸収体
45 ホットメルト接着材
46 接着部位
47 圧密融着部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable article, and in particular, a disposable diaper, a disposable underwear, a disposable sanitary article, etc., a post-treatment tape for binding to a non-woven fabric constituting the disposable article at the time of disposal, and a fastening tape for wearing to a user It is related with the disposable article which fixed other members.
[0002]
[Prior art]
For example, a flat-type disposable diaper has a configuration in which an absorbent body is interposed between an outer sheet made by bonding a nonwoven fabric to the outer surface of a liquid-impermeable sheet and having a cloth-like feel and an inner sheet made of the nonwoven fabric. The front side flap and the rear side flap are formed in a vertically long shape from the front waist part through the crotch part to the rear waist part. . A fastening tape is provided on the rear side flap, and a front target tape is provided on the front waist, and the rear waist is applied to the back of the wearer and the front waist is applied to the abdomen. The disposable diaper is attached by fastening the flap fastening tape to the front target tape at the front waist.
[0003]
In addition, the pants-type disposable diaper is a flat-type disposable diaper in which a front side flap and a rear side flap are joined in advance to form a pair of left and right leg openings and a torso opening. It is the same.
[0004]
When a disposable diaper is used and then discarded, a fastening tape is used in the case of a flat type, and in the case of a pants type, it is arranged in a state of being folded into a Z-shape or a V-shape on the rear surface. Using a post-processing tape, the tape is bundled in a state of being wound in a small size or folded and discarded.
[0005]
As shown in FIG. 7A, the fastening tape and the post-treatment tape are formed by attaching one end of the tape 52 to the nonwoven fabric 51 covering the surface of the disposable diaper, and an adhesive layer 53 such as an adhesive or a hot melt adhesive. It is fixed and attached via.
[0006]
[Problems to be solved by the invention]
However, when the tape 52 is fixed to the nonwoven fabric 51 through the adhesive layer 53, the adhesive layer 53 is applied to the surface of the nonwoven fabric 51 when a large peeling force acts on the tape 52 as shown in FIG. Even if they are bonded, delamination occurs in the nonwoven fabric 51 and the tape 52 comes off, or the adhesive material does not sufficiently penetrate into the fibers of the nonwoven fabric 51 and is not firmly bonded, and the adhesive layer 53 is easily peeled off. There was a problem that sometimes.
[0007]
An object of this invention is to provide the disposable article which can improve the adhering performance of the other member adhering to a nonwoven fabric in view of the said conventional problem.
[0008]
[Means for Solving the Problems]
The present invention relates to a disposable article in which another member is fixed to a part of the nonwoven fabric constituting the disposable article, and the non-woven fabric fixing portion is mutually bonded in a state where the fibers constituting the non-woven fabric are consolidated over the entire fixing portion. It is composed of a fusion-bonded portion fused to the other, and another member is bonded and fixed to the consolidation-fused portion with an adhesive .
[0009]
According to this configuration, when the nonwoven fabric uses fibers of a low melting point material or fibers having a high melting point material as a core and the surface thereof covered with a low melting point material, the entire fixing portion of another member is heated. By pressing and forming a consolidated fused part, and fixing other members to the consolidated fused part with an adhesive, even if a large peeling force acts between the nonwoven fabric and the other members, the interlayer separation of the nonwoven fabric does not occur Moreover, since the smoothness of the surface of the non-woven fabric is increased and the adhesive strength between the adhesive such as an adhesive and the fiber is increased, the fixing performance of other members can be improved.
[0010]
Further, when the other member is a tape whose one end is fixed to the non-woven fabric and an adhesive portion provided at the other end can be bonded to an arbitrary portion of the outer surface, the one end of the tape is bonded to the consolidated fusion portion. When fixing, the interlayer separation of the nonwoven fabric does not occur even in the fixed portion of the tape where a large peeling force acts, and the non-woven fabric fused surface becomes flat and the adhesive strength between the adhesive material and the fiber increases. The tape fixing performance can be improved and a great effect is exhibited.
[0012]
In addition, the tape can be suitably applied to a post-processing tape that is bound at the time of disposal of a disposable product and a fastening tape that is attached to a flat-type disposable diaper.
[0013]
Moreover, when the fixing part of the fastening tape is inserted between the tape fixing parts made of the nonwoven fabric of the outer sheet and the inner sheet of the disposable diaper, and the fixing part both sides and the tape fixing part of both sheets are fixed, It can be attached more firmly.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a disposable diaper will be described with reference to the accompanying drawings to provide an understanding of the present invention. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
[0015]
First, a first embodiment in which the present invention is applied to a pants-type disposable diaper to which a post-processing tape is fixed will be described with reference to FIGS.
[0016]
In FIG. 1, reference numeral 1 denotes a disposable diaper using a pant-type nonwoven fabric, and an outer surface sheet 2 and a nonwoven fabric which have a cloth-like feel by bonding the nonwoven fabric 2a to the outer surface of a liquid-impermeable sheet 2b such as a PE sheet. The rectangular sheet base material 5 comprised by the inner surface sheet 3 which consists of these, and the absorber 4 arrange | positioned among them is used. The sheet base 5 is formed with a counterbored portion 5a on both sides of the center and bent at the center, and the side edges 5b are connected to each other by heat sealing to form the body portion 6 and the leg portion 5a has a leg opening. The part 7 is formed and configured. A string rubber 9 is built in the trunk opening 8 of the trunk 6, and a string rubber 10 is also built around the leg opening 7.
[0017]
A post-processing tape 11 is disposed on the rear surface of the body 6 of the disposable diaper 1 for binding and discarding the disposable diaper 1 in a state of being folded down. As shown in FIG. 2A, the post-processing tape 11 has the base piece 12, the inner peeling piece 13, and the outer peeling piece 14 folded in a Z shape, and the base piece 12 is adhesive. It is fixed to the non-woven fabric 2 a of the outer surface sheet 2 through the material layer 15. The inner peeling piece portion 13 is adhered by the adhesive layer 16 so as to keep the folded state on the base piece portion 12, and is fixed to the surface of the outer peeling piece portion 14 facing the inner peeling piece portion 13 at the time of binding. An adhesive material layer 17 is provided, and the adhesive material layer 17 is kept folded on the inner peeling piece 13.
[0018]
When disposing of the disposable diaper 1, in a folded state, as shown in FIG. 2 (b), the outer treatment strip 11 of the post-treatment tape 11 is peeled off and the post-treatment tape 11 is stretched, By sticking the adhesive material layer 17 of the outer peeling piece 14 to a suitable place on the outer surface of the disposable diaper 1, the disposable diaper 1 is bound in a small folded state and discarded.
[0019]
In the present embodiment, in order to prevent the base piece portion 12 of the post-processing tape 11 from being easily detached from the nonwoven fabric 2a of the outer surface sheet 2, as shown in FIG. As shown in FIG. 3 (b), the fibers constituting the nonwoven fabric 2a are heat-pressed to form a consolidated fused portion 19 in which the fibers are fused together, and the pressure-adhered fused portion 19 is adhered. The base piece 12 of the post-processing tape 11 is fixed through the material layer 15.
[0020]
The non-woven fabric 2a uses bicomponent fibers in which a high melting point material such as PET or PP is used as a core and the surface thereof is covered with a PE low melting point material. It is formed by heating at a temperature of about 50 to 200 ° C. while applying a pressure of about 2.0 kg / cm 2 . Further, as the adhesive layers 15, 16, and 17, for example, those having a styrene block polymer as a main ingredient are used, and specifically, styrene-butylene-styrene block copolymer (SBS), styrene-isobutylene-styrene block copolymer. A polymer (SIS) or the like is used.
[0021]
In this way, by forming the consolidation fusion part 19 in the tape fixing part 18 of the nonwoven fabric 2a, when the consolidation fusion part 19 was not formed, the 90 degree peel strength against the nonwoven fabric was 335 gf / 15 mm. In contrast, a 90-degree peel strength against a nonwoven fabric of 925 gf / 15 mm was obtained.
[0022]
In the description of the above embodiment, an example in which the post-processing tape 11 is fixed to the tape fixing part 18 with the adhesive material layer 15 is shown. However, the post-processing tape 11 may be bonded with another adhesive such as a hot-melt adhesive. When the post-processing tape 11 is provided with a low-melting-point material layer, the base piece portion 12 and the consolidation fused portion 19 of the post-processing tape 11 may be heated and melted to be integrally fixed. By using 18 as the fusion-bonding portion 19, delamination of the nonwoven fabric 2 a is prevented, and a high fixing force is secured. Further, since the surface of the nonwoven fabric is flat, the pressure-sensitive adhesive layer (adhesive layer) 15 can uniformly contact the consolidated fusion-bonding portion 19, and the nonwoven fabric 2a and the post-processing tape 11 can be firmly bonded.
[0023]
Next, a second embodiment in which the present invention is applied to a flat disposable diaper to which a fastening tape is fixed will be described with reference to FIGS. 4 and 5.
[0024]
In FIG. 4, the disposable diaper 21 includes a nonwoven fabric 22a bonded to the outer surface of a liquid-impermeable sheet 22b such as a PE sheet, and a nonwoven fabric 22a and a nonwoven fabric. In the configuration in which the absorber 24 is interposed between the inner sheet 23 and the inner sheet 23, it is formed in a vertically long shape extending from the front waist part 25 to the rear waist part 27 through the crotch part 26.
[0025]
Between the front waist portion 25 and the rear waist portion 27, elastic gathering members such as thread rubber are arranged in an extended state on both sides of the absorber 24 and joined to the sheet 23 to be gathered and gathered. An outer edge portion 29 is formed, and the front waist portion 25 and the rear waist portion 27 are configured to fit the waist by joining elastically stretchable members such as foamed polyurethane to the sheets 22 and 23 gathered. The front waist part 25 and the rear waist part 27 are respectively provided with a front side flap 31 and a rear side flap 32 extending outward on both sides.
[0026]
A fastening tape 33 is provided on the rear side flap 32, and a front target tape 34 serving as a fastening surface of the fastening tape 33 is provided on the front waist portion 25. The front target tape 34 is provided with an easy-release surface constituting a fastening surface on the surface thereof, and a mark line 34a is displayed.
[0027]
When the disposable diaper 21 is worn, the rear waist portion 27 is applied to the back side of the wearer, and the front waist portion 25 is applied to the abdomen side. The fixing position is determined, and it is fixed to the front target tape 34. A leg opening is formed by the fastening of the fastening tape 33, and the crotch portion of the wearer is wrapped by the outer edge portion 29, and the three-dimensional gather portion 28 is positioned inside thereof to prevent urine leakage.
[0028]
In the disposable diaper 21 having such an overall configuration, as shown in FIG. 5, the fastening tape 33 is provided with a fastening portion 35 for the front target tape 34 at the free end portion, and the fixing portion 36 at the base end portion is provided on the outer surface. Inserted and arranged between the nonwoven fabric 22a of the sheet 22 and the inner surface sheet 23 made of the nonwoven fabric, and the tape adhering portion 38 of the nonwoven fabric 22a and the inner surface sheet 23 is heated and pressurized to consolidate the fibers constituting the nonwoven fabric. The both sides of the adhering portion 36 are bonded to the non-woven fabric 22a and the inner surface sheet 23 via the hot melt adhesive 37.
[0029]
In this way, the fixing portion 36 of the fastening tape 33 is inserted between the outer sheet 22 and the inner sheet 23, and the tape fixing portion 38 of both sheets 22 and 23 is used as the non-woven compacted fusion portion 39. By heat-bonding at, it is possible to reliably prevent the fastening tape 33 from being firmly fixed and coming off unexpectedly.
[0030]
In this embodiment, since the fixing portion 36 of the fastening tape 33 is inserted between the outer sheet 22 and the inner sheet 23, the fixing strength of the fixing tape 33 can be increased. You may make it adhere | attach on the inner surface sheet 23 with the melt adhesive material 37. FIG. Further, other adhesives may be used for bonding, and both may be heat-sealed to each other. In that case, the non-woven fabric can be obtained by using the non-woven tape adhering portion 38 as the compacted fusion part 39. It is possible to stably obtain a high adhesive force by eliminating the delamination. Furthermore, since the surface of the nonwoven fabric is flat, the hot melt adhesive 37 can uniformly contact the consolidation fusion part 39, and the nonwoven fabric and the fastening tape 33 can be firmly bonded.
[0031]
Next, a third embodiment in which the present invention is applied to the fixation of the inner sheet and the absorbent body of a flat disposable diaper will be described with reference to FIG.
[0032]
In FIG. 6, reference numeral 41 denotes a disposable diaper, which is provided between an outer surface sheet 42 having a cloth-like feeling by laminating a nonwoven fabric on the outer surface of a liquid-impermeable sheet such as a PE sheet and an inner surface sheet 43 made of the nonwoven fabric. Further, an absorber 44 wrapped with crepe paper or the like is interposed. The inner sheet 43 and the crepe paper or outer sheet 42 on the outer surface of the absorber 44 are bonded together by a plurality of spiral hot melt adhesives 45. In the present embodiment, the bonding portion 46 to be bonded by the spiral hot melt adhesive 45 of the inner surface sheet 43 is preliminarily heated and pressed to melt the fibers constituting the nonwoven fabric in a consolidated state. It is set as the consolidation fusion part 47 which was made to wear. Accordingly, the inner sheet 43 and the crepe paper that surrounds the absorber 44 are not accidentally peeled off due to delamination of the nonwoven fabric constituting the inner sheet 43, and the inner sheet 43 and the absorber are not peeled off. 44 is fixed by a hot melt adhesive 45 with high adhesive strength. Further, since the surface of the nonwoven fabric is flat, the hot melt adhesive 45 can uniformly contact the consolidated fusion bonded portion 47, and the nonwoven fabric and the absorbent body 44 can be firmly bonded.
[0033]
Thus, according to the present embodiment, there is no fear that the inner surface sheet 43 and the absorber 44 are separated during use to give a feeling of foreign matter or discomfort, and the usability can be improved.
[0034]
【The invention's effect】
According to the disposable articles of the present invention, the anchor site of the nonwoven fabric, constituted by compaction fused portion fused to each other in a state of being compacted fibers constituting the nonwoven fabric over the whole surface of the anchor site, the Since other members are bonded and fixed to the fusion-bonded part with an adhesive , the nonwoven fabric uses low-melting-point material fibers or high-melting-point material cores whose surfaces are covered with low-melting-point materials. , solid Chakubui the heating and pressing as a consolidated fused portion, by bonding and fixing the other member by an adhesive to the consolidation fused portion, even when a large peeling force between the nonwoven fabric and the other member is applied Since the interlayer separation of the nonwoven fabric does not occur and the surface of the non-woven fabric is flat, the adhesive strength between the adhesive such as a pressure-sensitive adhesive and the fiber increases, so that the fixing performance of other members can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a disposable diaper according to a first embodiment of the present invention.
2A and 2B are enlarged cross-sectional views taken along the line AA in FIG. 1, wherein FIG. 2A is a cross-sectional view in a folded state, and FIG. 2B is a cross-sectional view in use.
3A and 3B show the main configuration of the embodiment, in which FIG. 3A is an overall front view of a disposable diaper, and FIG. 3B is an enlarged cross-sectional view taken along line BB in FIG.
FIG. 4 is a perspective view of a disposable diaper according to a second embodiment of the present invention.
FIG. 5 is an enlarged schematic cross-sectional view showing the main configuration of the embodiment.
FIG. 6 is an exploded perspective view of a disposable diaper according to a third embodiment of the present invention.
7A and 7B show a tape fixing structure in a conventional disposable diaper, wherein FIG. 7A is an enlarged sectional view and FIG. 7B is an enlarged sectional view showing a state when a peeling force is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Outer surface sheet 2a Non-woven fabric 11 Post-processing tape 15 Adhesive material layer 18 Tape fixing part 19 Consolidation fusion part 21 Disposable diaper 22 Outer sheet 22a Non-woven fabric 33 Fastening tape 37 Hot melt adhesive 38 Tape fixing part 39 Consolidation fusing Part 41 Disposable diaper 43 Inner surface sheet 44 Absorber 45 Hot melt adhesive 46 Adhesion site 47 Consolidation fusion part

Claims (6)

使い捨て用品を構成する不織布の一部に他の部材を固着した使い捨て用品において、不織布の固着部位を、その固着部位の全面にわたって不織布を構成している繊維を圧密させた状態で相互に融着させた圧密融着部にて構成し、この圧密融着部に他の部材を接着剤にて接着固定したことを特徴とする使い捨て用品。In a disposable product in which other members are fixed to a part of the nonwoven fabric constituting the disposable product, the non-woven fabric fixing part is fused to each other in a state in which the fibers constituting the non-woven fabric are consolidated over the entire fixing part. A disposable article characterized in that it is constituted by a compacted fusion part, and another member is adhered and fixed to the compacted fusion part with an adhesive . 不織布は、高融点材料をコアにしその表面を低融点材料で被覆したバイコーポーネント繊維から成ることを特徴とする請求項1記載の使い捨て用品。 2. The disposable article according to claim 1 , wherein the nonwoven fabric is made of a bicomponent fiber having a high melting point material as a core and a surface thereof coated with a low melting point material . 他の部材は、不織布に一端部が固着され、他端部に設けられた接着部を外面の任意の箇所に接着可能なテープであり、前記圧密融着部にテープの一端部を固着したことを特徴とする請求項1又は2記載の使い捨て用品。The other member is a tape whose one end is fixed to the non-woven fabric, and an adhesive portion provided at the other end can be bonded to an arbitrary portion of the outer surface, and one end of the tape is fixed to the consolidation portion. The disposable article according to claim 1 or 2 . テープは、使い捨て用品の廃棄時に結束する後処理テープであることを特徴とする請求項記載の使い捨て用品。4. The disposable product according to claim 3, wherein the tape is a post-processing tape that is bound when the disposable product is discarded. テープは、フラット型使い捨ておむつを装着する止着テープであることを特徴とする請求項記載の使い捨て用品。4. The disposable article according to claim 3, wherein the tape is a fastening tape to which a flat disposable diaper is attached. 止着テープの固着部を、使い捨ておむつを構成する外面シートと内面シートの不織布からなるテープ固着部位間に挿入し、固着部両面と両シートのテープ固着部位を固着したことを特徴とする請求項記載の使い捨て用品。The fixing part of the fastening tape is inserted between the tape fixing part made of the nonwoven fabric of the outer sheet and the inner sheet of the disposable diaper, and both the fixing part and the tape fixing part of both sheets are fixed. 5. Disposable items according to 5 .
JP2002234512A 2002-08-12 2002-08-12 Disposable items Expired - Lifetime JP4015505B2 (en)

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Publication number Priority date Publication date Assignee Title
JP5413000B2 (en) * 2009-07-08 2014-02-12 王子ホールディングス株式会社 Fastening tape, manufacturing method of fastening tape, and tape-type disposable diaper
RU2735805C1 (en) * 2017-11-27 2020-11-09 Эссити Хайджин Энд Хелт Актиеболаг Absorbent pants-type product with recycling tape
CN212166014U (en) * 2018-12-29 2020-12-18 尤妮佳股份有限公司 Pants-type diaper
JPWO2022071518A1 (en) * 2020-09-30 2022-04-07

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