JP3692100B2

JP3692100B2 - Folding method and packing method of unfolding side absorbent article

Info

Publication number: JP3692100B2
Application number: JP2002199909A
Authority: JP
Inventors: 委宏大谷
Original assignee: Daio Paper Corp
Current assignee: Daio Paper Corp
Priority date: 2002-07-09
Filing date: 2002-07-09
Publication date: 2005-09-07
Anticipated expiration: 2022-07-09
Also published as: JP2004041307A

Description

【０００１】
【発明の属する技術分野】
この発明は、トップシートとバックシートとそれらの間に介在された吸収体と、使用面側に起立しうる立体ギャザーをそなえた使い捨て展開型紙おむつ、尿取りパッド、生理用ナプキンなどの展開型吸収性物品の折畳方法、およびその折り畳まれた展開型吸収性物品の梱包方法に関する。
【０００２】
【従来の技術】
従来の展開型紙おむつは、例えば、特開２００１−２９３０２９号公報に開示されている。すなわち、図８に示す展開型紙おむつは、トップシート２１とバックシート２２とそれらの間に介在された吸収体２３と、使用面側に起立しうる立体ギャザー２４をそなえ、吸収体２３の幅方向の中間領域に長手方向に沿って、吸収体２３を折り返すことを容易にする一対の肉薄部２３ａを形成する。
【０００３】
そして、肉薄部２３ａに沿って、吸収体２３の幅方向に吸収体２３の幅寸法の約３分の１となるように展開型紙おむつを折り畳む。
【０００４】
また、従来の別の展開型紙おむつの折畳方法を図９に示す。この図に示す展開型紙おむつは、トップシート３１とバックシート３２とそれらの間に介在された吸収体３３と、使用面側に起立しうる立体ギャザー３４およびその外側に延出するサイドフラップ３５をそなえる。
【０００５】
そして、吸収体３３は略砂時計形状をしており、吸収体３３の最狭部３３ａにおいて、立体ギャザー３４は吸収体３３上に設けられている。
【０００６】
このように構成された展開型紙おむつを折り畳むときは、まず、図１０において、立体ギャザー３４を折り畳む。次に、最狭部３３ａにおいて、吸収体３３の縁辺部にある仮想折畳線Ｇ１に沿ってサイドフラップ３５を吸収体３３の内側に向かって折り畳む。次に、図９に示すように、その折り畳み方向と直交する方向に、仮想折畳線Ｇ２に沿って三つ折りに折り畳む。
【０００７】
【発明が解決しようとする課題】
ところが、図８に示すような展開型紙おむつの折畳方法では、折り畳んだ展開型紙おむつの吸収体２３上の肉薄部２３ａに吸収体２３の長手方向に２本の折り目がついてしまい、使用するときに、この折り目に沿って尿などが流れ、尿漏れなどの原因となるという問題がある。
【０００８】
また、図９に示すような展開型紙おむつの折畳方法では、最狭部３３ａにおいて、立体ギャザー３４が仮想折畳線Ｇ１上に位置するため、立体ギャザー３４に折り畳み皺が入ってしまい、使用するときに、十分に起立せず、尿漏れなどの原因となるという問題がある。
【０００９】
そこで、この発明の目的は、漏れない展開型吸収性物品の折畳方法および梱包方法を提供することにある。
【００１０】
【課題を解決するための手段】
そのため、請求項１に記載の発明は、展開型吸収性物品の折畳方法であって、トップシートとバックシートとそれらの間に介在された吸収体と、起立しうるように前記トップシートの両側部に長さ方向に立体ギャザーをそなえ、前記吸収体は、展開した状態で、長手方向の中央部付近に幅方向の最狭部を設け、長手方向の両端部付近の幅が中央部付近より広くなる略砂時計形状とし、前記立体ギャザーは、前記吸収体の中央部付近では、前記吸収体の外側に設け、前記吸収体の両端部付近では、前記吸収体上に設ける展開型吸収性物品において、前記吸収体の中央部付近では、前記吸収体と前記立体ギャザーが重ならず、前記吸収体の端部付近では、前記立体ギャザーが吸収体上にあり、前記立体ギャザーが格納されている展開状態から、両側を前記立体ギャザーの内側の折畳線に沿って内側に向かって折り畳み、前記展開型吸収性物品の両側を折り返して前記立体ギャザーをすべて前記吸収体上に重ね合わせた状態とする、ことを特徴とする。
【００１１】
請求項２に記載の発明は、展開型吸収性物品の折畳方法において、請求項１に記載の折畳方法で折り畳み後、前記折畳線と直交する第２の折畳線に沿って三つ折りに折り畳む、ことを特徴とする。
【００１２】
請求項３に記載の発明は、展開型吸収性物品の梱包方法において、請求項２に記載の折畳方法で折り畳んだ展開型吸収性物品を立てた状態で横方向に複数重ね合わせ、その重ね合せた厚みの０．６〜０．８倍に圧縮して包装袋に収容することを特徴とする。
【００１３】
請求項４に記載の発明は、請求項３に記載の展開型吸収性物品の梱包方法において、前記圧縮された展開型吸収性物品の吸収体の圧縮仕事量が４．９〜６．９Ｊ／ｍ^２であり、かつ、圧縮固さが０．４〜０．５５であり、かつ、圧縮回復性が３０〜４０％であることを特徴とする。
【００１４】
【発明の実施の形態】
以下、図面を参照しつつ、展開型紙おむつ（展開型吸収性物品）の折畳方法および梱包方法について説明する。図１は、この例に用いる展開型紙おむつの装着時の斜視図、図２は、図１に示す展開型紙おむつを展開した状態を示す一部破断平面図である。
【００１５】
図１および図２に示す展開型紙おむつは、トップシート１とバックシート２とそれらの間に介在された吸収体３と、使用面側に起立しうる立体ギャザー４Ａをそなえる。この吸収体３は、図示しない吸収用のティシューペーパーで被覆されている。また、吸収体３は、略砂時計形状となっており、図２中の長手方向中央付近に最狭部３ａが形成されている。
【００１６】
トップシート１は、展開型紙おむつの使用面を構成し、尿などの排泄物を吸収体３側に透過させる機能を有する素材でなり、肌着に近い感触を有した材料が好ましい。このような材料としては、例えば、織布、不織布および多孔性フィルム等を用いることができる。また、トップシート１の周縁部に撥水処理を施し、この周縁部における尿などの滲みによる漏れを防止する機能を付加したものが好ましい。
【００１７】
バックシート２は、通気性を有し、肌ざわりのよい材料が好ましい。このような材料としては、トップシート１と同様に、織布、不織布および多孔質フィルム等を用いることができる。また、バックシート２の内側には撥水処理を施し、吸収体３側からの尿などの滲みによる漏れを防止する機能を付加したものが好ましい。
【００１８】
吸収体３は、例えば、解織パルプを主材として高分子吸水ポリマーを併用したものや、熱可塑性樹脂、セルロース繊維および高分子吸水ポリマーの混合物に熱処理を施したもの等を用いることが好ましい。この他、吸収体３の材料としては、高分子ポリマーとパルプとを混合したものを用いてもよい。この場合、上記した高分子吸水ポリマーは、吸収体３の上層と中層および下層の何れの位置に存在してもよい。
【００１９】
吸収体３とバックシート２との間には、ポリエチレンフィルムからなる不透液性シート５をそなえる。
【００２０】
トップシート１の両側部には、内部に糸ゴム７をそなえて使用面側に起立しうる脚回り用の立体ギャザー４Ａをそなえる。さらに立体ギャザー４Ａの外側には、立体ギャザー４Ａを構成するギャザーシート４とバックシート２からなるサイドフラップ６が延出し、装着時に背側となるサイドフラップ６の両側部には、装着時に展開型紙おむつの腰まわりを固定するための止着部材８が設けられる。
【００２１】
立体ギャザー４Ａは、詳しくは、図３（Ａ）に示すように、吸収体３の幅方向の最狭部３ａにおいて、吸収体３の外側に設けられ、図３（Ｂ）のように、立体ギャザー４Ａを折り畳んだときに（格納状態）、吸収体３に重ならないように設ける。
【００２２】
図４（Ａ）は、図２のＣ−Ｃにおける展開型紙おむつの断面図である。ここでは、吸収体３の幅が最狭部３ａに比べて広いため、立体ギャザー４Ａを吸収体３の上に重なるように設ける。
【００２３】
このように構成された展開型紙おむつを折り畳むときは、まず、図２に示すように、吸収体３の幅方向の最狭部３ａにおいて、展開型紙おむつの両側部のサイドフラップ６を、吸収体３と立体ギャザー４Ａとの間にある仮想折畳線（折畳線）Ｆ１にて内側に向かって折り畳む。詳しくは、図３（Ｂ）のように、立体ギャザー４Ａを格納状態とし、仮想折畳線Ｆ１において、サイドフラップ６を両側から内側に向かって図３（Ｃ）に示すように折り畳む。
【００２４】
すなわち、サイドフラップ６を折り畳むとき、立体ギャザー４Ａを格納状態とし、吸収体３の最狭部３ａにおいて、格納された立体ギャザー４Ａと吸収体３との間で折り、格納された立体ギャザー４Ａを吸収体３上に重ね合せる。
【００２５】
すると、立体ギャザー４Ａ上には、折り皺が入らないので、使用時に正常に起立することができる。また、図４（Ｂ）では、吸収体３の幅が最狭部３ａに比べて広いので、吸収体３上の仮想折畳線Ｆ１において、サイドフラップ６と吸収体３を両側から内側に向かって図４（Ｃ）のように折り曲げる。
【００２６】
このとき、吸収体３の両側部の折曲部３ｂの長さＬ_１は、折り曲げていない部分の長さＬに対して、Ｌ≧２Ｌ_１となるようにＬとＬ_１とを設定する。したがって、吸収体３の両側部の折曲部３ｂどうしが重なり合わないので、折り畳むときに厚さを薄くすることができる。
【００２７】
このようにして仮想折畳線Ｆ１にて折り畳むと図５のようになる。次に、その折り畳み方向と直交する方向に三つ折りに折り畳む。すなわち、仮想折畳線Ｆ１に直交する、展開型紙おむつの長手方向をほぼ３等分する位置にある仮想折畳線（第２の折畳線）Ｆ２において、展開型紙おむつの両端部から内側に向かって矢印のように三つ折りに折り畳むと、図６のようになる。
【００２８】
そして、折り畳んだ展開型紙おむつを図７に示すように、立てた状態で横方向に複数重ね合わせて圧縮して包装袋９に収容して、梱包する。このとき、その重ね合せた厚みの０．６倍の厚みになるように折り畳んだ展開型紙おむつを圧縮する。
【００２９】
なお、この例で使用する吸収体３は、圧縮された展開型紙おむつの吸収体３の圧縮仕事量（ＷＣ）が４．９Ｊ／ｍ^２であり、かつ、圧縮固さ（ＬＣ）が０．４であり、かつ、圧縮回復性（ＲＣ）が４０％となるような弾力性のあるものとする。したがって、包装袋９を開封した際に、吸収体３が圧縮前の厚さと柔軟性を回復し、良好な装着感を得ることができる。
【００３０】
ここで、圧縮仕事量、圧縮固さ、圧縮回復性は、ＫＥＳ−Ｇ５ハンディー圧縮試験機により、押圧スピード０．１ｃｍ／ｓ、最大圧縮圧力４９０３．３Ｐａで、２．０ｃｍ^２の端面を吸収体３に押し当てて測定する際の値である。
【００３１】
なお、この例では、展開型吸収性物品として、展開型紙おむつについて説明したが、本発明はこれに限定されるものではなく、尿取りパッド、生理用ナプキン等にも適用しうる。
【００３２】
また、この例では、折り畳まれた展開型紙おむつを立てた状態で横方向に複数重ね合わせ、その重ね合せた厚みの０．６倍の厚みになるように圧縮して包装袋９に収容したが、本発明はこれに限定されるものではなく、折り畳まれた展開型紙おむつを重ね合せた厚みの０．６〜０．８倍の厚みとなるように圧縮すればよい。このようにすると、使用時に、折り目が残らず、尿漏れなどを防ぐことができ、かつ、人体に装着しやすい。
【００３３】
さらに、この例では、圧縮された展開型紙おむつの吸収体３の圧縮固さを０．４、かつ、圧縮仕事量を４．９Ｊ／ｍ^２、かつ、圧縮回復性を４０％となるような吸収体３としたが、本発明はこれに限定されるものではなく、吸収体３の圧縮固さが０．４〜０．５５、かつ、圧縮仕事量が４．９〜６．９Ｊ／ｍ^２、かつ、圧縮回復性が３０〜４０％となるように設定すればよい。このように設定すると、使用時に、吸収体３が圧縮前の厚さに回復し、装着感がよい。
【００３５】
【発明の効果】
したがって、この発明によれば、展開型吸収性物品を折り畳むときに、吸収体の中央部付近では、吸収体と立体ギャザーが重ならず、吸収体の端部付近では、立体ギャザーが吸収体上にあり、立体ギャザーが格納されている展開状態から、展開型吸収性物品の両側を立体ギャザーの内側の折畳線に沿って内側に向かって折り畳み、展開型吸収性物品の両側を折り返して立体ギャザーをすべて吸収体上に重ね合わせた状態とするので、立体ギャザーに折り皺が入らず、使用時に立体ギャザーが正常に起立し、尿漏れなどの漏れのない展開型吸収性物品の折畳方法および梱包方法を提供することができる。
【００３６】
請求項２に記載の発明によれば、加えて、請求項１に記載の折畳方法で折り畳み後、折畳線と直交する第２の折畳線に沿って三つ折りに折り畳むので、展開型吸収性物品をコンパクトに折り畳むことができる。
【００３７】
請求項３に記載の発明によれば、加えて、請求項２に記載の折畳方法で折り畳んだ展開型吸収性物品を立てた状態で横方向に複数重ね合わせ、その重ね合せた厚みの０．６〜０．８倍の厚みに圧縮して包装袋に収容するので、コンパクトで、かつ、使用時に折り目の残らないような梱包をすることができる。
【００３８】
請求項４に係る発明によれば、請求項３に記載の効果に加えて、圧縮して包装袋に収容する吸収体の圧縮仕事量が４．９〜６．９Ｊ／ｍ^２であり、かつ、圧縮固さが０．４〜０．５５であり、かつ、圧縮回復性が３０〜４０％であるので、吸収体に弾力性があり、包装袋を開封した際に、吸収体が圧縮前の厚さと柔軟性を回復し、良好な装着感を得ることができる。
【図面の簡単な説明】
【図１】この発明の一例としての展開型紙おむつの斜視図である。
【図２】その一部破断平面図である。
【図３】そのＢ矢視断面図であり、（Ａ）は、立体ギャザーが起立した状態、（Ｂ）は、立体ギャザーを折り畳んだ状態（格納状態）、（Ｃ）は、Ｆ１において、サイドフラップを折り畳んだ状態を示すものである。
【図４】そのＣ矢視断面図であり、（Ａ）は、立体ギャザーが起立した状態、（Ｂ）は、立体ギャザーを折り畳んだ状態（格納状態）、（Ｃ）は、Ｆ１において、サイドフラップと吸収体の一部を折り畳んだ状態を示すものである。
【図５】この発明の一例としての展開型紙おむつをＦ１において折り畳んだ状態を示す展開型紙おむつの斜視図である。
【図６】その展開型紙おむつをＦ２において三つ折りにした状態を示す展開型紙おむつの斜視図である。
【図７】その折り畳んだ展開型紙おむつを包装袋に収納した状態を示す斜視図である。
【図８】従来の展開型紙おむつを折り畳んだ状態を示す断面図である。
【図９】従来の別の展開型紙おむつの一部破断平面図である。
【図１０】そのＡ矢視断面図である。
【符号の説明】
１トップシート
２バックシート
３吸収体
３ａ最狭部
４Ａ立体ギャザー
６サイドフラップ
９包装袋[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable absorbent disposable diaper, a urine collecting pad, a sanitary napkin, etc. having a top sheet, a back sheet, an absorbent body interposed therebetween, and a three-dimensional gather that can stand on the use surface side. folding method of sexual products products, and to a method for packing the folded-extracting absorbent article.
[0002]
[Prior art]
A conventional unfoldable disposable diaper is disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-293029. That is, the developed disposable diaper shown in FIG. 8 includes a top sheet 21, a back sheet 22, an absorber 23 interposed therebetween, and a three-dimensional gather 24 that can stand on the use surface side. A pair of thin portions 23a that make it easy to fold the absorber 23 along the longitudinal direction are formed in the intermediate region.
[0003]
Then, the developed disposable diaper is folded along the thin portion 23a in the width direction of the absorbent body 23 so as to be about one third of the width dimension of the absorbent body 23.
[0004]
FIG. 9 shows another conventional folding method for unfolded disposable diapers. The developed disposable diaper shown in this figure includes a top sheet 31, a back sheet 32, an absorbent body 33 interposed therebetween, a three-dimensional gather 34 that can stand on the use surface side, and a side flap 35 that extends to the outside. I have it.
[0005]
The absorber 33 has a substantially hourglass shape, and the three-dimensional gather 34 is provided on the absorber 33 in the narrowest portion 33 a of the absorber 33.
[0006]
When the unfoldable disposable diaper configured as described above is folded, first, the three-dimensional gather 34 is folded in FIG. Next, the side flap 35 is folded toward the inner side of the absorber 33 along the virtual fold line G <b> 1 at the edge of the absorber 33 at the narrowest portion 33 a. Next, as shown in FIG. 9, it is folded in three along the virtual fold line G2 in a direction orthogonal to the folding direction.
[0007]
[Problems to be solved by the invention]
However, in the folding method of the unfolded disposable paper diaper as shown in FIG. 8, two thin folds are formed in the longitudinal direction of the absorbent body 23 on the thin portion 23 a on the absorbent body 23 of the folded unfolded disposable paper diaper. In addition, there is a problem that urine etc. flows along this crease, causing urine leakage and the like.
[0008]
Further, in the folding method of the unfoldable disposable diaper as shown in FIG. 9, since the three-dimensional gather 34 is located on the virtual fold line G1 in the narrowest portion 33a, a folding bag enters the three-dimensional gather 34 and is used. When it does, there is a problem that it does not stand up sufficiently and causes urine leakage and the like.
[0009]
Accordingly, an object of the present invention is to provide a folding method and packaging method of extracting absorbent product article does not leak.
[0010]
[Means for Solving the Problems]
Therefore, the invention according to claim 1 is a method for folding a deployable absorbent article, wherein the top sheet, the back sheet, the absorbent body interposed therebetween, and the top sheet so as to be able to stand up. Zona give a three-dimensional gathers in the longitudinal direction both side portions, said absorbent body, in a developed state, the narrowest portion in the width direction is provided near the center portion in the longitudinal direction, the width in the vicinity of both ends in the longitudinal direction center a substantially hourglass shape wider than the vicinity of parts, the three-dimensional gathers, in the central portion and around the absorbent body, wherein provided on the outer side of the absorbent body, wherein the end portions near the absorber, provided Ru deployment on the absorber In the type absorbent article, the absorber and the three-dimensional gather do not overlap in the vicinity of the center of the absorber, and the three-dimensional gather exists on the absorber near the end of the absorber, and the three-dimensional gather From the stored deployment state, both Is folded inward along a folding line on the inside of the three-dimensional gather, and both sides of the expandable absorbent article are folded back so that all the three-dimensional gathers are superposed on the absorber. And
[0011]
The invention according to claim 2 is a method of folding a deployable absorbent article, wherein the folding type article is folded along the second fold line perpendicular to the fold line after being folded by the fold method according to claim 1. It folds in a fold.
[0012]
The invention according to claim 3 is a packing method for a deployable absorbent article, wherein a plurality of the deployable absorbent articles folded by the folding method according to claim 2 are stacked in the lateral direction, and the stacking is performed. Compressed to 0.6 to 0.8 times the combined thickness and accommodated in a packaging bag.
[0013]
Invention of Claim 4 is a packing method of the expansion | deployment type | mold absorbent article of Claim 3 , Comprising: The compression work of the absorber of the said compression | deployment type | mold expandable absorbent article is 4.9-6.9 J /. m ² , compression hardness is 0.4 to 0.55, and compression recovery is 30 to 40%.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, with reference to the drawings, a folding method and a packing method for a developed disposable diaper (deployable absorbent article) will be described. FIG. 1 is a perspective view when the unfoldable disposable diaper used in this example is mounted, and FIG. 2 is a partially broken plan view showing a state where the unfoldable disposable diaper shown in FIG. 1 is unfolded.
[0015]
The unfolded disposable diaper shown in FIGS. 1 and 2 includes a top sheet 1, a back sheet 2, an absorbent body 3 interposed therebetween, and a three-dimensional gather 4A that can stand on the use surface side. The absorbent body 3 is covered with a tissue paper for absorption (not shown). Moreover, the absorber 3 has a substantially hourglass shape, and the narrowest portion 3a is formed near the center in the longitudinal direction in FIG.
[0016]
The top sheet 1 is a material that constitutes a use surface of the unfoldable disposable diaper and has a function of transmitting excrement such as urine to the absorber 3 side, and a material having a touch close to underwear is preferable. As such a material, a woven fabric, a nonwoven fabric, a porous film, etc. can be used, for example. Moreover, what added the function which performs the water-repellent process to the peripheral part of the top sheet 1, and prevents the leakage by bleeding of urine etc. in this peripheral part is preferable.
[0017]
The back sheet 2 is preferably a material having air permeability and good texture. As such a material, similarly to the top sheet 1, a woven fabric, a nonwoven fabric, a porous film, or the like can be used. Further, it is preferable that the inside of the back sheet 2 is subjected to water repellent treatment and added with a function of preventing leakage due to bleeding of urine from the absorber 3 side.
[0018]
The absorbent body 3 is preferably, for example, a combination of a high-molecular water-absorbing polymer using woven pulp as a main material, or a mixture of a thermoplastic resin, cellulose fiber, and a high-molecular water-absorbing polymer subjected to heat treatment. In addition, as the material of the absorbent body 3, a mixture of a polymer and pulp may be used. In this case, the above-described polymer water-absorbing polymer may be present in any position of the upper layer, middle layer and lower layer of the absorber 3.
[0019]
A liquid-impermeable sheet 5 made of a polyethylene film is provided between the absorber 3 and the back sheet 2.
[0020]
On both sides of the top sheet 1, there are provided three-dimensional gathers 4 </ b> A for leg rotations that can be erected on the use surface side with the rubber thread 7 inside. Further, outside the three-dimensional gather 4A, side flaps 6 comprising a gather sheet 4 and a back sheet 2 constituting the three-dimensional gather 4A extend, and on both sides of the side flap 6 which is the back side when mounted, the unfolded type when mounted. A fastening member 8 for fixing the waist of the paper diaper is provided.
[0021]
Specifically, the three-dimensional gather 4A is provided outside the absorber 3 at the narrowest portion 3a in the width direction of the absorber 3 as shown in FIG. 3A, and is three-dimensional as shown in FIG. (stored state) when the gathers 4A folded Ri folding, provided so as not to overlap the absorbent body 3.
[0022]
FIG. 4A is a cross-sectional view of the developed disposable diaper in CC of FIG. Here, since the width of the absorbent body 3 is wider than the narrowest portion 3a, Keru set to overlap the three-dimensional gathers 4A on the absorber 3.
[0023]
When folding the thus configured extracting paper diaper, as shown in FIG. 2, at the narrowest portion 3a in the width direction of the absorbent body 3, the side flaps 6 on both sides of the deployable paper diaper, absorber 3 and the three-dimensional gather 4 A virtual fold line ( fold line ) between F is folded inward at F1. Specifically, as shown in FIG. 3 (B), the three-dimensional gather 4A is set in the retracted state, and the side flaps 6 are folded inward from both sides as shown in FIG. 3 (C) in the virtual fold line F1.
[0024]
That is, when the side flap 6 is folded, the three-dimensional gather 4A is set in the retracted state, and the stored three-dimensional gather 4A is folded between the stored three-dimensional gather 4A and the absorber 3 at the narrowest portion 3a of the absorber 3. Superimpose on the absorber 3.
[0025]
Then, since no crease is formed on the three-dimensional gather 4A, it can stand up normally during use. In FIG. 4B, since the width of the absorber 3 is wider than the narrowest portion 3a, the side flap 6 and the absorber 3 are directed from both sides to the inside in the virtual fold line F1 on the absorber 3. And bend as shown in FIG.
[0026]
At this time, L and L ₁ are set so that the length L ₁ of the bent portion 3 b on both sides of the absorber 3 is L ≧ 2L ₁ with respect to the length L of the unbent portion. Accordingly, the bent portions 3b on both sides of the absorbent body 3 do not overlap each other, so that the thickness can be reduced when folded.
[0027]
In this way, when folded along the virtual fold line F1, it becomes as shown in FIG. Next, it is folded in three in a direction orthogonal to the folding direction. That is, in the virtual fold line (second fold line) F2 that is orthogonal to the virtual fold line F1 and that divides the longitudinal direction of the developed paper diaper into approximately three equal parts, from both ends of the developed paper diaper to the inside When it is folded in three as shown by the arrow, it becomes as shown in FIG.
[0028]
Then, as shown in FIG. 7, the folded unfolded disposable diapers are stacked and compressed in a horizontal direction in a standing state, accommodated in the packaging bag 9, and packed. At this time, the developed disposable diaper folded so as to have a thickness 0.6 times the thickness of the overlapped thickness is compressed.
[0029]
Note that, in the absorbent body 3 used in this example, the compression work (WC) of the compressed spread-type disposable diaper absorbent body 3 is 4.9 J / m ² and the compression hardness (LC) is 0.00. 4 and the elasticity is such that the compression recovery (RC) is 40%. Therefore, when the packaging bag 9 is opened, the absorbent body 3 recovers the thickness and flexibility before compression, and a good wearing feeling can be obtained.
[0030]
Here, the work of compression, compression hardness, and compression recoverability were measured using a KES-G5 handy compression tester with a pressing speed of 0.1 cm / s, a maximum compression pressure of 4903.3 Pa, and an end face of 2.0 cm ² as an absorber. It is a value when pressed against 3 for measurement.
[0031]
In this example, the spreadable disposable diaper has been described as the spreadable absorbent article. However, the present invention is not limited to this and can be applied to a urine collection pad, a sanitary napkin, and the like.
[0032]
In this example, the folded unfolded disposable diapers are stacked in the horizontal direction, and compressed into 0.6 times the thickness of the stacked thickness, and stored in the packaging bag 9. The present invention is not limited to this, and it may be compressed so as to have a thickness of 0.6 to 0.8 times the thickness of the folded unfolded disposable diapers. In this way, there is no crease left during use, urine leakage and the like can be prevented, and it is easy to attach to the human body.
[0033]
Furthermore, in this example, the compression hardness of the compressed unfoldable disposable diaper 3 is 0.4, the compression work is 4.9 J / m ² , and the compression recovery is 40%. Although it was set as the absorber 3, this invention is not limited to this, The compression hardness of the absorber 3 is 0.4-0.55, and compression work is 4.9-6.9 J / m. ² and compression recovery may be set to 30 to 40%. If it sets in this way, at the time of use, the absorber 3 will recover to the thickness before compression, and a feeling of wearing is good.
[0035]
【The invention's effect】
Therefore, according to the present invention, when the deployable absorbent article is folded, the absorber and the three-dimensional gather do not overlap in the vicinity of the central portion of the absorber, and the three-dimensional gather on the absorber near the end of the absorber. From the unfolded state in which the three-dimensional gather is stored, both sides of the deployable absorbent article are folded inward along the inner folding line of the three-dimensional gather, and both sides of the deployable absorbent article are folded back to form a three-dimensional since a state superimposed on all gathers absorber, without entering the folds in the standing gathers, standing gathers are erected normally in use, leak-free folding of extracting absorbent product articles such as incontinence Methods and packaging methods can be provided.
[0036]
According to the invention described in claim 2 , in addition, after folding by the folding method according to claim 1 , it is folded in three along the second fold line perpendicular to the fold line. The absorbent article can be folded compactly.
[0037]
According to the invention described in claim 3 , in addition, a plurality of the spreadable absorbent articles folded by the folding method according to claim 2 are stacked in the lateral direction, and the thickness of the stacked thickness is 0. Compressed to a thickness of 6 to 0.8 times and accommodated in a packaging bag, it is compact and can be packaged so that no creases remain during use.
[0038]
According to the invention of claim 4 , in addition to the effect of claim 3 , the compression work of the absorber that is compressed and accommodated in the packaging bag is 4.9 to 6.9 J / m ² , and Since the compression hardness is 0.4 to 0.55 and the compression recovery property is 30 to 40%, the absorbent body is elastic, and when the packaging bag is opened, the absorbent body is before compression. The thickness and flexibility can be recovered, and a good wearing feeling can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of an unfolded disposable diaper as an example of the present invention.
FIG. 2 is a partially broken plan view thereof.
FIGS. 3A and 3B are cross-sectional views taken along arrow B, where FIG. 3A is a state in which a three-dimensional gather is raised, FIG. 3B is a state in which a three-dimensional gather is folded (stored state), and FIG. The state which folded the flap is shown.
4A and 4B are cross-sectional views taken along the arrow C, where FIG. 4A is a state in which a three-dimensional gather is raised, FIG. 4B is a state in which a three-dimensional gather is folded (stored state), and FIG. The state which folded a part of flap and absorber is shown.
FIG. 5 is a perspective view of a developed paper diaper showing a state in which the developed paper diaper as an example of the present invention is folded at F1.
FIG. 6 is a perspective view of a developed paper diaper showing a state in which the developed paper diaper is folded in three at F2.
FIG. 7 is a perspective view showing a state in which the folded unfolded disposable diaper is stored in a packaging bag.
FIG. 8 is a cross-sectional view showing a state in which a conventional developed paper diaper is folded.
FIG. 9 is a partially broken plan view of another conventional unfoldable disposable diaper.
FIG. 10 is a cross-sectional view taken along arrow A in FIG.
[Explanation of symbols]
1 Top sheet 2 Back sheet 3 Absorber 3a Narrowest part 4A Solid gather 6 Side flap 9 Packaging bag

Claims

A top sheet, a back sheet, an absorbent body interposed between them, and a three-dimensional gather in the longitudinal direction on both sides of the top sheet so that the top sheet can stand up. The narrowest part in the width direction is provided near the central part of the skirt, and the width near the both end parts in the longitudinal direction is wider than the vicinity of the central part, and the three-dimensional gather is absorbed near the central part of the absorber. Provided outside the body, in the vicinity of both ends of the absorbent body, in the deployable absorbent article provided on the absorbent body, in the vicinity of the central part of the absorbent body, the absorbent body and the three-dimensional gather do not overlap, Near the end of the absorber, the three-dimensional gather is on the absorber, and from the expanded state in which the three-dimensional gather is stored, both sides are folded inward along the inner folding line of the three-dimensional gather,
Folding both sides of the expandable absorbent article to put all the three-dimensional gathers on the absorbent body,
A folding method for a deployable absorbent article, characterized in that :

A folding method for a deployable absorbent article, wherein the folding type folding article is folded in three along a second folding line orthogonal to the folding line after being folded by the folding method according to claim 1 .

A plurality of the spreadable absorbent articles folded by the folding method according to claim 2 are overlapped in the horizontal direction, and compressed to 0.6 to 0.8 times the overlapped thickness to form a packaging bag. A packing method for a deployable absorbent article, characterized in that it is housed.

The compression work of the absorbent body of the compressed expandable absorbent article is 4.9 to 6.9 J / m ² , the compression hardness is 0.4 to 0.55, and the compression recovery The packing method for a deployable absorbent article according to claim 3 , wherein the property is 30 to 40%.