JP2008307272A - Disposable pants-type diaper - Google Patents

Disposable pants-type diaper Download PDF

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JP2008307272A
JP2008307272A JP2007158987A JP2007158987A JP2008307272A JP 2008307272 A JP2008307272 A JP 2008307272A JP 2007158987 A JP2007158987 A JP 2007158987A JP 2007158987 A JP2007158987 A JP 2007158987A JP 2008307272 A JP2008307272 A JP 2008307272A
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crotch region
sheet
diaper
joined
body fluid
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JP4818993B2 (en
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Toshibumi Otsubo
俊文 大坪
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Unicharm Corp
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Unicharm Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable pants-type diaper capable of quickly absorbing urine and having a simple structure. <P>SOLUTION: This disposable pants-type diaper 1 has a sheet piece 51 crossing a crotch region 6 on the inside of an inner face sheet 32 of the crotch region 6. The sheet piece 51 is so formed that a central part 52 in the lateral direction B of an upper edge part is joined with a central part in the lateral direction B of the crotch region 6 in front of the lowest portion 6a of the crotch region 6, the respective both side edge parts 53 of the sheet piece 51 are joined with both side edge parts of the crotch region 6 in the back of the lowest portion 6a of the crotch part 6, and the part of the crotch part 6 joined with the central part 52 of the sheet piece 51 is formed to project toward the inside of the diaper 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は使い捨てのパンツ型おむつに関し、より詳しくは尿を速やかに吸収することが可能な前記おむつに関する。   The present invention relates to a disposable pant-type diaper, and more particularly to the diaper capable of quickly absorbing urine.

従来、使い捨てのパンツ型おむつは周知である。また、そのようなおむつであって、股下域の前方部分が肌に密着可能に形成されたものは公知である。例えば、特開２００２−１１０４４号公報（特許文献１）に開示のおむつは、トップシートとスキンコンタクトシートとの間に便を受容可能な空隙を有し、スキンコンタクトシートには、便を導き入れるための開口部が形成されている。トップシートとバックシートとの間には第１の吸収体が介在しており、スキンコンタクトシートは前身頃に第２の吸収体を含んでいる。スキンコンタクトシートはまた、おむつの前後方向へ伸長された状態にある弾性部材を含んでいる。
特開２００２−１１０４４号公報 Conventionally, disposable pants-type diapers are well known. Also, such diapers are known in which the front part of the crotch region is formed so as to be in close contact with the skin. For example, a diaper disclosed in Japanese Patent Application Laid-Open No. 2002-11044 (Patent Document 1) has a space that can receive stool between a top sheet and a skin contact sheet, and stool is introduced into the skin contact sheet. An opening is formed for this purpose. The first absorbent body is interposed between the top sheet and the back sheet, and the skin contact sheet includes the second absorbent body in the front body. The skin contact sheet also includes an elastic member that is stretched in the front-rear direction of the diaper.
JP 2002-11044 A

特許文献１に開示のおむつは、スキンコンタクトシートが含む弾性部材の作用を利用してスキンコンタクトシートを尿道口周辺の肌に密着させると、第２の吸収体が尿を吸収する。また、便がスキンコンタクトシートに形成された開口部を通ってスキンコンタクトシートとトップシートとの間の空隙に進入すると、第１の吸収体が便に含まれた水分を吸収する。本発明者が知見したところによれば、このような構造のおむつでは、尿を吸収するための吸収体と、便の水分を吸収するための吸収体という個別の吸収体を使用するから、吸収体を１個だけ使用するおむつと比べると、おむつの構造が複雑になるという問題を生じる。また、それが原因となって、おむつの製造コストが嵩むという問題も生じかねない。   In the diaper disclosed in Patent Document 1, when the skin contact sheet is brought into close contact with the skin around the urethral opening using the action of the elastic member included in the skin contact sheet, the second absorber absorbs urine. Further, when the stool enters the gap between the skin contact sheet and the top sheet through the opening formed in the skin contact sheet, the first absorber absorbs moisture contained in the stool. According to the knowledge of the present inventor, a diaper having such a structure uses an absorbent body for absorbing urine and an absorbent body for absorbing stool water. Compared to a diaper that uses only one body, the diaper structure is complicated. Moreover, it may cause a problem that the manufacturing cost of the diaper increases.

そこで、この発明は、前記問題を解消するために、尿を速やかに吸収することが可能であって簡易な構造を有する使い捨てのパンツ型おむつの提供を課題にしている。   Therefore, in order to solve the above problems, the present invention has an object to provide a disposable pants-type diaper that can absorb urine quickly and has a simple structure.

前記課題を解決するために、この発明が対象とするのは、互いに直交する前後方向と横方向と上下方向とを有し、股下域と前記股下域の前方に位置する前胴周り域と前記股下域の後方に位置する後胴周り域とによってパンツ型に形成され、前記股下域と前記前胴周り域と前記後胴周り域とのうちの少なくとも前記股下域には透液性内面シートと不透液性外面シートとこれら両シート間に介在する体液吸収性の芯材とによって体液吸収部が形成されている使い捨てのパンツ型おむつである。   In order to solve the above-mentioned problem, the present invention is directed to a crotch region, a front waist region located in front of the crotch region, and a front waist region having a front-rear direction, a lateral direction, and a vertical direction orthogonal to each other, and A rear waist region located behind the crotch region and formed into a pants shape, and at least one of the crotch region, the front waist region, and the rear waist region has a liquid-permeable inner sheet; A disposable pants-type diaper in which a body fluid absorbing portion is formed by a liquid-impermeable outer sheet and a body fluid-absorbing core material interposed between both sheets.

かかるおむつにおいて、この発明が特徴とするところは、次のとおりである。前記股下域には、前記内面シートの内側において前記股下域を横断するシート片が設けられる。前記シート片は、前記横方向へ互いに並行して延びる上縁部と下縁部と、前記上下方向へ互いに並行して延びる両側縁部とを有し、前記上縁部の前記横方向の中央部が前記股下域の最下部よりも前方において前記股下域の前記横方向の中央部に接合するとともに、前記両側縁部のそれぞれが前記股下域の前記最下部よりも後方において前記股下域の両側縁部それぞれに接合しており、前記上縁部に接合する前記股下域の前記中央部が前記おむつの着用状態において前記おむつの内側に向かって突出可能に形成されている。   In this diaper, the features of the present invention are as follows. The crotch region is provided with a sheet piece that crosses the crotch region inside the inner sheet. The sheet piece has an upper edge portion and a lower edge portion extending in parallel with each other in the lateral direction, and both side edge portions extending in parallel with each other in the vertical direction, and the lateral center of the upper edge portion. A portion joined to the lateral central portion of the crotch region in front of the lowermost part of the crotch region, and each of the side edge portions on both sides of the crotch region behind the lowermost part of the crotch region It joins to each edge part, The said center part of the said crotch region joined to the said upper edge part is formed so that it can protrude toward the inner side of the said diaper in the wearing state of the said diaper.

この発明の好ましい実施形態の一つにおいて、前記股下域の前記両側縁部が、前記体液吸収部の両側縁部、前記体液吸収部の前記両側縁部それぞれから前記横方向へ延出する防漏フラップ、前記体液吸収部の前記両側縁部分それぞれにおいて前記体液吸収部に対して起立可能に形成された防漏カフのいずれかである。   In one of preferred embodiments of the present invention, the side edges of the crotch region extend in the lateral direction from the side edges of the body fluid absorber and the side edges of the body fluid absorber. It is either a flap or a leak-proof cuff formed so as to be able to stand up with respect to the body fluid absorbing portion at each of the side edge portions of the body fluid absorbing portion.

この発明の好ましい実施形態の他の一つにおいて、前記シート片が前記横方向において弾性的に伸長可能なものである。   In another preferred embodiment of the present invention, the sheet piece is elastically extensible in the lateral direction.

この発明の好ましい実施形態の他の一つにおいて、前記シート片は、前記上縁部と前記下縁部との間の寸法が少なくとも５０ｍｍであって、前記股下域の前記最下部よりも後方の部分との間に便を受容可能なポケットを形成している。   In another preferred embodiment of the present invention, the sheet piece has a dimension between the upper edge portion and the lower edge portion of at least 50 mm and is located behind the lowermost portion of the crotch region. A pocket that can receive feces is formed between the two parts.

この発明の好ましい実施形態のさらに他の一つにおいて、前記シート片の前記下縁部が前記内面シートに接合している。   In still another preferred embodiment of the present invention, the lower edge portion of the sheet piece is joined to the inner surface sheet.

この発明に係るパンツ型おむつは、股下域を横断するシート片がその上縁部の中央部において股下域の前方における中央部に接合する一方、シート片の両側縁部のそれぞれが股下域の後方において股下域の両側縁部それぞれに接合して、股下域の前方における中央部がおむつ着用状態においておむつの内側に突出可能であるから、このおむつを着用すると、その突出している中央部が尿道口周辺の肌に接触して、尿道口から流れ出る尿や尿道口から肌を伝って流れる尿を股下域に形成された体液吸収部において速やかに吸収する。   In the pants-type diaper according to the present invention, the sheet piece that crosses the crotch region is joined to the center portion in front of the crotch region at the center portion of the upper edge portion, while both side edges of the sheet piece are located behind the crotch region. Since the center part in front of the crotch area can be protruded inside the diaper when the diaper is worn, the center part protruding from the urethra mouth The urine flowing out of the urethral orifice and the urine flowing along the skin from the urethral orifice is quickly absorbed in the body fluid absorbing portion formed in the crotch region in contact with the surrounding skin.

股下域の前方における中央部をこのように作用させるシート片の両側縁部それぞれが接合する股下域の両側縁部それぞれとしては、股下域における体液吸収部の両側縁部、体液吸収部の両側縁部から延出する防漏フラップ、体液吸収部の両側縁部において起立可能に形成された防漏カフのいずれかを選ぶことができる。しかし、比較的剛性の高い芯材を含む体液吸収部の両側縁部を選ぶならば、股下域における前方の中央部を突出させることが容易になる。また、防漏カフを選ぶならば、シート片と股下域の後方の部分との間に形成されるポケットの容積を大きくすることができる。   The both side edges of the crotch area where the both side edges of the sheet piece that act the central part in the front of the crotch area in this way are joined are the both side edges of the body fluid absorbing part and both side edges of the body fluid absorbing part in the crotch area Either a leak-proof flap extending from the portion or a leak-proof cuff formed so as to be able to stand up at both side edges of the body fluid absorbing portion can be selected. However, if both side edges of the body fluid absorbing part including the core material having relatively high rigidity are selected, it becomes easy to project the front center part in the crotch region. Moreover, if a leak-proof cuff is selected, the volume of the pocket formed between the sheet piece and the rear portion of the crotch region can be increased.

シート片が横方向において弾性的に伸長可能である形態のおむつでは、おむつを着用したときに着用者の脚がシート片に接触すると、シート片が速やかに変形するので、シート片の存在によっておむつの着用感が悪くなるということがない。   In a diaper in which the sheet piece is elastically stretchable in the lateral direction, when the wearer's leg comes into contact with the sheet piece when the diaper is worn, the sheet piece is quickly deformed. The feeling of wearing will not worsen.

シート片の上縁部と下縁部との間の寸法が少なくとも５０ｍｍであって、シート片と股下域の後方の部分との間に便を収容可能なポケットが形成されている形態のおむつでは、便によって尿道口の周辺を汚すことがない。   In a diaper in which the dimension between the upper edge and the lower edge of the sheet piece is at least 50 mm, and a pocket capable of accommodating stool is formed between the sheet piece and the rear part of the crotch region The stool does not contaminate the area around the urethral orifice.

シート片の下縁部がおむつの内面シートに接合している形態のおむつでは、ポケットに受容された便が股下域の前方へ移動することを確実に防ぐことができる。   In a diaper in which the lower edge portion of the sheet piece is bonded to the inner sheet of the diaper, it is possible to reliably prevent the stool received in the pocket from moving forward in the crotch region.

添付の図面を参照して、この発明に係る使い捨てパンツ型おむつの詳細を説明すると、以下のとおりである。   The details of the disposable pants-type diaper according to the present invention will be described below with reference to the accompanying drawings.

図１は、着用状態にある使い捨てのパンツ型おむつ１の斜視図であって、おむつ１の前後方向と横方向と上下方向とが互いに直交する双頭矢印Ａ，Ｂ，Ｃで示されている。おむつ１は、股下域６と、前胴周り域７と、後胴周り域８とを有し、前後胴周り域７，８は、それぞれの側縁部１１，１２が合掌状に重なり合い、部位１３において互いに接合して、胴周り開口１４を形成している。前後胴周り域７，８はまた、股下域６と協働して一対の脚周り開口１６を形成している。   FIG. 1 is a perspective view of a disposable pant-type diaper 1 in a worn state, which is indicated by double-headed arrows A, B, and C in which the front-rear direction, the lateral direction, and the vertical direction of the diaper 1 are orthogonal to each other. The diaper 1 has a crotch region 6, a front waist region 7, and a back waist region 8, and the front and back waist regions 7, 8 overlap with each other in the shape of a palm. 13 are joined together to form a waistline opening 14. The front and rear waist areas 7 and 8 also form a pair of leg openings 16 in cooperation with the crotch area 6.

図２は、図１のおむつ１の部分破断図である。前後胴周り域７，８のそれぞれは、不織布で形成された内面シート２１と外面シート２２とを接着または溶着により接合することにより形成されていて、両シート２１，２２の間には、複数条の胴周り弾性部材２３と複数条の第１脚周り弾性部材２４とがあって、これら弾性部材２３，２４が両シート２１，２２の少なくとも一方に伸長状態で接合している。   FIG. 2 is a partially cutaway view of the diaper 1 of FIG. Each of the front and rear waist regions 7, 8 is formed by joining an inner sheet 21 and an outer sheet 22 formed of a nonwoven fabric by adhesion or welding, and a plurality of strips are provided between the sheets 21, 22. There are a plurality of first leg elastic members 24 and a plurality of first leg elastic members 24, and these elastic members 23, 24 are joined to at least one of both sheets 21, 22 in an extended state.

股下域６は、図１においてほぼＵ字形を呈するように湾曲しているパネル状部材１０の一部分によって形成されている。パネル状部材１０は、不織布で形成された透液性内面シート３２とプラスチックフィルムで形成された不透液性外面シート３３とが体液吸収性の芯材３１を実質的にサンドウィッチ状に被覆している体液吸収部４１を含むものであって、外面シート３３はその肌触りを向上させるために不織布３４で覆われている。ここで、芯材３１を内面シート３２と外面シート３３とで実質的にサンドウィッチ状に被覆するとは、図示の如く芯材３１の縁部から内面シート３２と外面シート３３とを延出させることによって芯材３１を被覆する態様の他に、芯材３１の内面の全体と芯材３１の外面の少なくとも一部分とを内面シート３２で被覆しておいてから、芯材３１の外面を外面シート３３で被覆する態様を含んでいる。かようなパネル状部材１０は、中間部３６が股下域６を形成し、股下域６から上方へ延びた前端部３７が前胴周り域７の内面に接着剤（図示せず）を介して接合している。パネル状部材１０の後端部３８は後胴周り域８の内面に接合している。   The crotch region 6 is formed by a part of the panel-like member 10 that is curved so as to be substantially U-shaped in FIG. The panel-shaped member 10 includes a liquid-permeable inner surface sheet 32 formed of a nonwoven fabric and a liquid-impermeable outer surface sheet 33 formed of a plastic film covering a body fluid-absorbing core 31 substantially in a sandwich shape. The outer sheet 33 is covered with a non-woven fabric 34 in order to improve the touch. Here, covering the core material 31 with the inner surface sheet 32 and the outer surface sheet 33 substantially in a sandwich shape means that the inner surface sheet 32 and the outer surface sheet 33 are extended from the edge of the core material 31 as shown in the figure. In addition to the mode of covering the core material 31, the entire inner surface of the core material 31 and at least a part of the outer surface of the core material 31 are covered with the inner surface sheet 32, and then the outer surface of the core material 31 is covered with the outer surface sheet 33. A mode of covering is included. In such a panel-like member 10, the intermediate portion 36 forms the crotch region 6, and the front end portion 37 extending upward from the crotch region 6 is attached to the inner surface of the front waist region 7 via an adhesive (not shown). It is joined. The rear end portion 38 of the panel-like member 10 is joined to the inner surface of the rear waist region 8.

パネル状部材１０は、体液吸収部４１の他に、芯材３１の側縁部から延出する内面シート３２と外面シート３３とが互いに接合して形成している防漏フラップ４２を含んでいる。防漏フラップ４２は、内面シート３２と外面シート３３との間において芯材３１に沿って延びていて、内面シート３２と外面シート３３との少なくとも一方に伸長状態で接合している第２脚周り弾性部材４３を含んでいる。この第２脚周り弾性部材４３は、脚周り開口１６の下方に位置するもので、脚周り開口１６の上方に位置する第１脚周り弾性部材２４と協働して脚周り開口１６の周縁部において環状に延びる弾性域を形成している。図１，２において、胴周り弾性部材２３と第１，第２脚周り弾性部材２４，４３とは、伸長状態にあって、おむつ着用者（図示せず）の胴周りと脚周りとに密着している。   In addition to the body fluid absorbing portion 41, the panel-like member 10 includes a leak-proof flap 42 formed by joining an inner surface sheet 32 and an outer surface sheet 33 extending from the side edge portion of the core material 31. . The leak-proof flap 42 extends along the core member 31 between the inner surface sheet 32 and the outer surface sheet 33 and is joined to at least one of the inner surface sheet 32 and the outer surface sheet 33 in an expanded state. An elastic member 43 is included. The second leg-hole elastic member 43 is located below the leg-hole opening 16, and cooperates with the first leg-hole elastic member 24 located above the leg-hole opening 16 to form a peripheral portion of the leg-hole opening 16. An elastic region extending in a ring shape is formed. In FIGS. 1 and 2, the waist elastic member 23 and the first and second leg elastic members 24 and 43 are in an extended state and are in close contact with the waist and legs of a diaper wearer (not shown). is doing.

さらに図２において、股下域６における内面シート３２の内側では、股下域６を横切るようにシート状の横断部材５１が延びている。横断部材５１は、横方向Ｂの中央部５２（図３，４参照）がおむつ１の横方向Ｂの寸法を二等分する縦中心線Ｐ−Ｐ上において股下域６に接合するとともに、横方向Ｂの両側に位置する側縁部５３（図３，４参照）それぞれが股下域６の両側縁部それぞれに接合している。横断部材５１の中央部５２は、股下域６のうちで最下部６ａよりも前方に位置する前部６ｂに接合し、側縁部５３が股下域６のうちで最下部６ａよりも後方に位置する後部６ｃ（図３，４参照）に接合していて、中央部５２は、股下域６の前部６ｂをおむつの内側に向かって突出させている。   Further, in FIG. 2, a sheet-like cross member 51 extends so as to cross the crotch region 6 inside the inner sheet 32 in the crotch region 6. The transverse member 51 is joined to the crotch region 6 on the longitudinal center line PP, in which the central portion 52 (see FIGS. 3 and 4) in the transverse direction B bisects the dimension in the transverse direction B of the diaper 1. The side edge portions 53 (see FIGS. 3 and 4) located on both sides in the direction B are joined to the both side edges of the crotch region 6. The central part 52 of the cross member 51 is joined to the front part 6b located in front of the lowermost part 6a in the crotch area 6, and the side edge part 53 is located rearward of the lowermost part 6a in the crotch area 6. It is joined to the rear part 6c (refer to FIGS. 3 and 4), and the central part 52 projects the front part 6b of the crotch region 6 toward the inside of the diaper.

図３，４は、図１のＩＩＩ−ＩＩＩ線断面図とＩＶ−ＩＶ線断面図とである。なお、ＩＶ−ＩＶ線は、参考のために図３にも示されている。横断部材５１は、中央部５２がホットメルト接着剤６４（図５参照）を介して股下域６の前部６ｂにおける内面シート３２に接合し、両側縁部５３のそれぞれが股下域６の後部６ｃにおける両側縁部それぞれの内面シート３２に接合している。股下域６の前部６ｂは、横断部材５１によって引っ張られていて、横断部材５１と接合している横方向Ｂの中央部が頂部となるように、おむつ１の内側に向かって突出している。   3 and 4 are a sectional view taken along line III-III and a sectional view taken along line IV-IV in FIG. The IV-IV line is also shown in FIG. 3 for reference. In the cross member 51, the central portion 52 is joined to the inner surface sheet 32 in the front portion 6b of the crotch region 6 via a hot melt adhesive 64 (see FIG. 5), and each side edge 53 is a rear portion 6c of the crotch region 6. Are joined to the inner sheet 32 at each of the side edges. The front part 6b of the crotch region 6 is pulled by the crossing member 51 and protrudes toward the inside of the diaper 1 so that the central part in the lateral direction B joined to the crossing member 51 is the top.

図５は、図１のおむつ１において、前後胴周り域７，８の側縁部１１，１２どうしの接合を解き、これら前後胴周り域７，８と股下域６とを前後方向Ａと横方向Ｂとに伸展した状態にある平坦なおむつ１ａの部分破断平面図である。ただし、横断部材５１については、おむつ１ａからおむつ１を得るときに使用される形状の一例が示されている。おむつ１ａにおける前方部材７０と後方部材８０とは、おむつ１の前胴周り域７と後胴周り域８とを形成するものであり、また、おむつ１ａにおいて平坦な矩形を成しているパネル状部材１０は、おむつ１におけるＵ字形のパネル状部材１０となるものである。おむつ１ａは中心線Ｐ’−Ｐ’に関して対称なもので、この中心線Ｐ’−Ｐ’は図１の中心線Ｐ−Ｐに対応している。図５において横方向Ｂへ延びる線Ｑ−Ｑは、中心線Ｐ’−Ｐ’上におけるおむつ１ａの寸法を二等分する横方向中心線であって、図１におけるおむつ１の最下部６ａはこの横方向中心線Ｑ−Ｑ上にある。   FIG. 5 shows the diaper 1 of FIG. 1 in which the side edge portions 11 and 12 of the front and rear waist regions 7 and 8 are unbonded, and the front and rear waist regions 7 and 8 and the crotch region 6 are It is a partial fracture top view of flat diaper 1a in the state extended in direction B. However, for the cross member 51, an example of the shape used when obtaining the diaper 1 from the diaper 1a is shown. The front member 70 and the rear member 80 in the diaper 1a form a front waistline region 7 and a back waistline region 8 of the diaper 1, and a panel shape forming a flat rectangle in the diaper 1a. The member 10 becomes the U-shaped panel-like member 10 in the diaper 1. The diaper 1a is symmetrical with respect to the center line P'-P ', and the center line P'-P' corresponds to the center line PP of FIG. In FIG. 5, a line QQ extending in the lateral direction B is a lateral center line that bisects the dimension of the diaper 1a on the center line P′-P ′, and the lowermost part 6a of the diaper 1 in FIG. It lies on this lateral centerline QQ.

前方部材７０と後方部材８０とにおいて、内面シート２１と外面シート２２とは接着剤６０を介して接合している。これら両シート２１，２２との間には、胴周り弾性部材２３と第１脚周り弾性部材２４とが伸長状態で介在している。   In the front member 70 and the rear member 80, the inner sheet 21 and the outer sheet 22 are joined via an adhesive 60. Between these two sheets 21 and 22, a waist elastic member 23 and a first leg elastic member 24 are interposed in an expanded state.

パネル状部材１０において、体液吸収性芯材３１は、それを被覆している透液性内面シート３２に対してホットメルト接着剤６１ａを介して接合し、不透液性外面シート３３に対してホットメルト接着剤６１ｂを介して接合している。これら内面シート３２と外面シート３３とは、芯材３１の周縁から延出する部分で重なり合い、ホットメルト接着剤６１ａおよび／またはホットメルト接着剤６１ｂを介して互いに接合しており、股下域６においては、重なり合った内面シート３２と外面シート３３とが防漏フラップ４２を形成している。防漏フラップ４２は、伸長状態にある第２脚周り弾性部材４３を含んでいるから、中心線Ｐ’−Ｐ’に沿う方向において、弾性的に収縮可能である。外面シート３３をその外側から覆う不織布３４は、ホットメルト接着剤６２を介して外面シート３３に接合している。また、その不織布３４は、ホットメルト接着剤６３を介して前方部材７０と後方部材８０とにおける内面シート２１に接合している。   In the panel-like member 10, the body fluid-absorbing core material 31 is bonded to the liquid-permeable inner surface sheet 32 covering the body-liquid-absorbing core material 31 via the hot melt adhesive 61 a, and to the liquid-impermeable outer sheet 33. It joins via the hot-melt-adhesive 61b. The inner surface sheet 32 and the outer surface sheet 33 overlap at a portion extending from the peripheral edge of the core material 31 and are joined to each other via the hot melt adhesive 61a and / or the hot melt adhesive 61b. The inner sheet 32 and the outer sheet 33 that overlap each other form a leak-proof flap 42. Since the leak-proof flap 42 includes the elastic member 43 around the second leg in the extended state, the leak-proof flap 42 can be elastically contracted in the direction along the center line P′-P ′. The nonwoven fabric 34 that covers the outer sheet 33 from the outside is bonded to the outer sheet 33 via a hot melt adhesive 62. Further, the nonwoven fabric 34 is bonded to the inner surface sheet 21 of the front member 70 and the rear member 80 via a hot melt adhesive 63.

図５における横断部材５１は、股下域の後部６ｃにある。その横断部材５１は横方向Ｂへ延びていて、中心線Ｐ’−Ｐ’上に位置する中央部５２と、両側縁部５３と、上縁部５１ａと、下縁部５１ｂとを有し、両側縁部５３のそれぞれが接着または溶着により股下域６の両側縁部それぞれ、より具体的にはその側縁部それぞれの一部を形成している体液吸収部４１の縁部における内面シート３２に接合した状態にある。中央部５２には、少なくとも上縁部５１ａの近傍に接着剤６４が塗布されている。横断部材５１は、両側縁部５３間の実寸が図示された両側縁部５３間の直線距離よりも長いものであるが、中央部５２と両側縁部５３それぞれとの間にタックをとるように折り重ね部位６６を設けることによって、図５では横方向Ｂへ直線的に延びている。折り重ね部位６６それぞれを伸展させたときの横断部材５１の全長は、図２，４においてほぼＶ字形を画いている横断部材５１の全長に等しい。なお、横断部材５１の側縁部５３は、仮想線で示されるように横方向Ｂへ延ばして、股下域６の側縁部の一部分を形成している防漏フラップ４２に接合することも可能である。   The cross member 51 in FIG. 5 is in the rear part 6c of the crotch region. The transverse member 51 extends in the transverse direction B, and has a central portion 52 located on the center line P′-P ′, side edge portions 53, an upper edge portion 51a, and a lower edge portion 51b. The inner side sheet 32 at the edge of the bodily fluid absorbing part 41 is formed on each side edge of the crotch region 6 by bonding or welding, and more specifically, part of each side edge. It is in a joined state. An adhesive 64 is applied to the central portion 52 at least in the vicinity of the upper edge portion 51a. The cross member 51 has an actual size between the side edges 53 longer than the linear distance between the side edges 53 shown in the figure, but is folded so as to take a tack between the center 52 and the side edges 53 respectively. By providing the overlapping portion 66, it extends linearly in the lateral direction B in FIG. The total length of the cross member 51 when each of the folded portions 66 is extended is equal to the total length of the cross member 51 that is substantially V-shaped in FIGS. Note that the side edge 53 of the cross member 51 extends in the lateral direction B as indicated by the phantom line, and can be joined to the leak-proof flap 42 forming a part of the side edge of the crotch region 6. It is.

おむつ１ａから図１のおむつ１を得るには、パネル状部材１０が内側となるようにしておむつ１ａを横中心線Ｑ−Ｑに沿って折り重ねる。そのときに、横断部材５１の中央部５２を内面シート３２に対して仮想線で示された部位６７において接合する。部位６７は、股下域６における横方向Ｂの中央に位置しており、内面シート３２が中央部５２と向き合うこととなる部位である。このときの接合には、接着剤６４を使用する。また、前方部材７０と後方部材８０とは、側縁部１１，１２どうしを部位１３において接合する。このようにして得られるおむつ１の横断部材５１は両側縁部５３間の実寸が、股下域６の前部６ａをおむつ１の内側へ向かって突出させることができるように（図２〜４参照）調整されている。   In order to obtain the diaper 1 of FIG. 1 from the diaper 1a, the diaper 1a is folded along the horizontal center line QQ so that the panel-like member 10 is inside. At that time, the central portion 52 of the cross member 51 is joined to the inner surface sheet 32 at a portion 67 indicated by a virtual line. The part 67 is located in the center of the crotch region 6 in the lateral direction B, and the inner sheet 32 faces the central part 52. An adhesive 64 is used for bonding at this time. Further, the front member 70 and the rear member 80 join the side edge portions 11 and 12 at the portion 13. The transverse member 51 of the diaper 1 obtained in this way is such that the actual size between the side edges 53 can project the front part 6a of the crotch region 6 toward the inside of the diaper 1 (see FIGS. 2 to 4). ) Has been adjusted.

得られたおむつ１は、それを着用すると、股下域６の前部６ｂが尿道口周辺の肌に接触し易く、接触したときには、尿道口から流出する尿を速やかに吸収することができる。また、着用者が女性であれば、尿道口から肌を伝って流れる尿も速やかに吸収することができる。   When the obtained diaper 1 is worn, the front part 6b of the crotch region 6 is likely to come into contact with the skin around the urethral opening, and when contacted, the urine flowing out from the urethral opening can be absorbed quickly. Moreover, if the wearer is a woman, the urine flowing along the skin from the urethral orifice can be absorbed quickly.

図５のおむつ１が乳幼児用のものである場合、股下域６の最下部６ａから横断部材５１の上縁部５１ａまでの寸法は、５０〜１００ｍｍであることが好ましい。ただし、横断部材５１は、おむつ１の上下方向Ｃにおいて、股下域６の最下部６ａから横断部材５１の上縁部５１ａまでの距離を調整し、おむつ１を着用したときに着用者の脚のつけ根近傍に上縁部５１ａが接触して、横断部材５１が下方へ多少押し下げられるようにしておくと、股下域６の前部６ｂを肌へ接触させることが容易になる。横断部材５１の上縁部５１ａから下縁部５１ｂまでの寸法Ｗ（図５参照）に格別の規定はないが、横断部材５１ａが図示例の如く帯状のものである場合のその寸法Ｗの一例は、５〜２０ｍｍである。横断部材５１は、非弾性的な不織布やプラスチックフィルム等のシート材料によって作ることができるものであるが、横方向Ｂに弾性的に伸長可能なシート材料によって作ることもできる。横断部材５１がこれら非弾性的なシート材料や弾性的なシート材料によって形成されていて、おむつ１を畳んで包装するときに多数のギャザーを生じて嵩張るということがないものであるときには、おむつ１の包装体がコンパクトなものになって、おむつ１の保存や輸送のためのスペースを節約することができる。   When the diaper 1 of FIG. 5 is for infants, the dimension from the lowermost part 6a of the crotch region 6 to the upper edge part 51a of the crossing member 51 is preferably 50 to 100 mm. However, the cross member 51 adjusts the distance from the lowermost part 6a of the crotch region 6 to the upper edge portion 51a of the cross member 51 in the vertical direction C of the diaper 1, and when the diaper 1 is worn, If the upper edge portion 51a is in contact with the vicinity of the base and the cross member 51 is pushed down slightly, it becomes easy to bring the front portion 6b of the crotch region 6 into contact with the skin. Although there is no special rule in the dimension W (refer FIG. 5) from the upper edge part 51a of the crossing member 51 to the lower edge part 51b, an example of the dimension W in case the crossing member 51a is a strip | belt-shaped thing like the example of illustration. Is 5-20 mm. The transverse member 51 can be made of a sheet material such as a non-elastic nonwoven fabric or a plastic film, but can also be made of a sheet material that can be elastically stretched in the transverse direction B. When the cross member 51 is formed of the inelastic sheet material or the elastic sheet material, and when the diaper 1 is folded and packaged, a large number of gathers are not generated and the diaper 1 is not bulky. Thus, the packaging body of the diaper 1 can be made compact to save space for storing and transporting the diaper 1.

おむつ１において、内面シート３２には不織布や開孔プラスチックフィルムを使用することができる。外面シート３３にはプラスチックフィルムを使用することができる。芯材３１には、粉砕パルプや高吸水性ポリマー粒子、これらパルプとポリマー粒子との混合物等の体液吸収性材料を使用することができる。その体液吸収性材料は、好ましくはティシュペーパ等の透液性にして液拡散性に優れたシートで被覆しておく。前胴周り域７を形成している前方部材７０と後胴周り域８を形成している後方部材８０とにおいて、胴周り弾性部材２３を追加し、前後胴周り域７，８の全体を弾性的に伸長可能にすることもできる。また、前方部材７０と後方部材８０とに、横方向Ｂへ弾性的に伸長可能なシート材料を使うこともできる。   In the diaper 1, a nonwoven fabric or a perforated plastic film can be used for the inner sheet 32. A plastic film can be used for the outer sheet 33. For the core material 31, a body fluid-absorbing material such as pulverized pulp, highly water-absorbing polymer particles, or a mixture of these pulp and polymer particles can be used. The body fluid-absorbing material is preferably coated with a sheet having excellent liquid diffusibility, such as tissue paper. In the front member 70 forming the front waistline region 7 and the rear member 80 forming the rear waistline region 8, a waistline elastic member 23 is added, and the entire front and back waistline regions 7, 8 are elastic. It can also be made extensible. In addition, a sheet material that can elastically extend in the lateral direction B can be used for the front member 70 and the rear member 80.

図６は、この発明の一実施形態を示す図５と同様な図である。図６のおむつ１ａでは、横断部材５１として、図５の横断部材５１と比べて上縁部５１ａから下縁部５１ｂまでの寸法Ｗが大きく、下縁部５１ｂが股下域６の最下部６ａに届くものが使用されている。おむつ１ａが乳幼児用のものである場合に、図６の横断部材５１の上縁部５１ａと下縁部５１ｂとの間の寸法Ｗは５０〜１００ｍｍに広げることができる。このような横断部材５１を有するおむつ１ａから得られるおむつ１は、横断部材５１よりも後方にポケット１００を有するものになるので、そのポケット１００の開口におむつ着用者の肛門（図示せず）が来るように横断部材５１を股下域６に取り付けておくことによって、股下域６において便と尿とが混合されることを防ぐことができる。横断部材５１は、中央部５２の一部または全部を股下域６の前部６ｂに対して接合することができるのであるが、中央部５２の一部のみを前部６ｂに接合するときには、上縁部５１ａを前部６ｂに接合する。横断部材５１は、また、下縁部５１ｂを股下域６の最下部６ａにおける内面シート３２に接合することができる。   FIG. 6 is a view similar to FIG. 5 showing one embodiment of the present invention. In the diaper 1 a of FIG. 6, as the cross member 51, the dimension W from the upper edge portion 51 a to the lower edge portion 51 b is larger than the cross member 51 of FIG. 5, and the lower edge portion 51 b is at the lowermost part 6 a of the crotch region 6. The one that arrives is being used. When the diaper 1a is for infants, the dimension W between the upper edge portion 51a and the lower edge portion 51b of the cross member 51 in FIG. 6 can be increased to 50 to 100 mm. The diaper 1 obtained from the diaper 1 a having such a cross member 51 has a pocket 100 behind the cross member 51, so that the anus (not shown) of the diaper wearer is in the opening of the pocket 100. By attaching the cross member 51 to the crotch region 6 so as to come, mixing of stool and urine in the crotch region 6 can be prevented. The crossing member 51 can join part or all of the central part 52 to the front part 6b of the crotch region 6, but when only part of the central part 52 is joined to the front part 6b, The edge part 51a is joined to the front part 6b. The cross member 51 can also join the lower edge portion 51 b to the inner sheet 32 in the lowermost portion 6 a of the crotch region 6.

図７，８もまた、この発明の実施形態の一例を示す図５と同様な図と、その図のＶＩＩＩ−ＶＩＩＩ線切断面を示す図である。図７，８のおむつ１ａでは、股下域６の両側縁部それぞれに防漏カフ９０が形成されている。防漏カフ９０は、帯状の不織布またはプラスチックフィルムを横方向ＢへＺ字型または逆Ｚ字型に折り畳むことによって形成されていて、図８に示されるように底辺部分８１と、頂辺部分８２と、中間辺部分８３とを有する。股下域６において、底辺部分８１は、ホットメルト接着剤８４を介して内面シート３２に接合している。頂辺部分８２は、縁部８２ａに弾性部材８６が伸長状態で取り付けられている。前方部材７０と後方部材８０とにおける防漏カフ９０の一部分は、底辺部分８１と中間辺部分８３、および中間辺部分８３と頂辺部分８２がホットメルト接着剤８７を介して接合している。横断部材５１は、両側縁部５３のそれぞれがホットメルト接着剤８９を介して頂辺部分８２の縁部８２ａに接合している。この縁部８２ａは、股下域６の側縁部に含まれる部分である。このようなおむつ１ａを横中心線Ｑ−Ｑに沿って折曲し、横断部材５１の中央部５２を股下域６の前方部分６ｂに接合するとともに、前後胴周り域７，８の側縁部１１，１２どうしを接合すると、パネル状部材１０が股下域６においてＵ字形を画くように湾曲することに伴い、防漏フラップ４２の弾性部材４３と、防漏カフ９０の弾性部材８６とが収縮する。その結果として、防漏フラップ４２と防漏カフ９０とが、図８に例示されるように、パネル状部材１０における体液吸収部４１の内面に対して起立する傾向を示し、おむつ着用者の脚周り（図示せず）に密着し易くなる。横断部材５１の両側縁部５３は、そのような挙動を示す防漏カフ９０の縁部８２ａに取り付けられていて、防漏カフ９０が高く起立することを可能にする。   FIGS. 7 and 8 are also a view similar to FIG. 5 showing an example of the embodiment of the present invention and a view taken along the line VIII-VIII of the view. 7 and 8, a leak-proof cuff 90 is formed on each side edge of the crotch region 6. The leak-proof cuff 90 is formed by folding a belt-shaped nonwoven fabric or plastic film in the lateral direction B in a Z-shape or an inverted Z-shape, and as shown in FIG. 8, a bottom portion 81 and a top portion 82. And an intermediate side portion 83. In the crotch region 6, the bottom portion 81 is joined to the inner surface sheet 32 via a hot melt adhesive 84. The apex portion 82 has an elastic member 86 attached to the edge 82a in an extended state. In a part of the leak-proof cuff 90 in the front member 70 and the rear member 80, the bottom side portion 81 and the intermediate side portion 83, and the intermediate side portion 83 and the top side portion 82 are joined via the hot melt adhesive 87. In the cross member 51, each of the side edges 53 is joined to the edge 82 a of the top portion 82 via a hot melt adhesive 89. The edge 82 a is a part included in the side edge of the crotch region 6. Such a diaper 1a is bent along the horizontal center line QQ, and the central portion 52 of the cross member 51 is joined to the front portion 6b of the crotch region 6, and the side edges of the front and rear waist regions 7, 8 When 11 and 12 are joined together, the elastic member 43 of the leak-proof flap 42 and the elastic member 86 of the leak-proof cuff 90 contract as the panel-like member 10 is bent so as to form a U shape in the crotch region 6. To do. As a result, as shown in FIG. 8, the leak-proof flap 42 and the leak-proof cuff 90 tend to stand up against the inner surface of the body fluid absorbing portion 41 in the panel-like member 10, and the leg of the diaper wearer It becomes easy to adhere to the surroundings (not shown). Both side edges 53 of the cross member 51 are attached to the edges 82a of the leak-proof cuff 90 exhibiting such behavior, allowing the leak-proof cuff 90 to stand up high.

図９もまた、この発明の実施形態の一例を示す図４と同様な図であるが、図９のおむつ１には、股下域６において使用される各種接着剤も図示されている。図９の股下域６において、前部６ｂの内面シート３２と芯材３１とはホットメルト接着剤６1ａを介して接合しているが、外面シート３３と芯材３１とは横方向Ｂの中央において接合しておらず、横断部材５１によって内面シート３２がおむつ１の内側へ引っ張られると、外面シート３３と芯材３１とが横方向Ｂの中央において離間して芯材３１がおむつ１の内側へ突出する一方、外面シート３３とそれに接合している不織布３４とはおむつ１の外側へ突出するように弧を画くことが可能である。そのような態様にあるときのおむつ１は、股下域６の前部６ｂが図４の如くに局部的にはへこんでいないので、前部６ｂに図柄や文字が画かれていても、その図柄や文字が歪んで見えにくくなるということがない。   FIG. 9 is also a view similar to FIG. 4 showing an example of the embodiment of the present invention, but various adhesives used in the crotch region 6 are also illustrated in the diaper 1 of FIG. In the crotch region 6 of FIG. 9, the inner surface sheet 32 and the core material 31 of the front portion 6 b are joined via the hot melt adhesive 61 a, but the outer surface sheet 33 and the core material 31 are at the center in the lateral direction B. When the inner sheet 32 is pulled to the inside of the diaper 1 by the cross member 51 without being joined, the outer sheet 33 and the core material 31 are separated from each other at the center in the lateral direction B, and the core material 31 is moved to the inner side of the diaper 1. On the other hand, the outer sheet 33 and the nonwoven fabric 34 bonded thereto can form an arc so as to protrude to the outside of the diaper 1. The diaper 1 in such an embodiment has the front part 6b of the crotch region 6 not locally recessed as shown in FIG. 4, so even if a pattern or a character is drawn on the front part 6b, And the characters are not distorted and difficult to see.

この発明によれば、体液吸収部を尿道口周辺の肌に接触させることが容易で、尿を速やかに吸収することが可能な使い捨てのパンツ型おむつの製造が可能になる。   According to this invention, it is easy to make the bodily fluid absorption part contact the skin around the urethral orifice, and it becomes possible to produce a disposable pant-type diaper that can absorb urine quickly.

おむつの斜視図。A perspective view of a diaper. おむつの部分破断斜視図。The partial fracture perspective view of a diaper. 図１のＩＩＩ−ＩＩＩ線断面図。III-III sectional view taken on the line of FIG. 図１のＩＶ−ＩＶ線断面図。IV-IV sectional view taken on the line of FIG. 図１のおむつを分解して伸展し、部分的に破断して示す図。The figure which decomposes | disassembles and extends the diaper of FIG. 1, and shows it partially fractured | ruptured. 実施形態の一例を示す図５と同様な図。The figure similar to FIG. 5 which shows an example of embodiment. 実施形態の他の一例を示す図５と同様な図。The figure similar to FIG. 5 which shows another example of embodiment. 図７のＶＩＩＩ−ＶＩＩＩ線切断面を示す図。The figure which shows the VIII-VIII line | wire cut surface of FIG. 実施形態の一例を示す図４と同様な図。The figure similar to FIG. 4 which shows an example of embodiment.

符号の説明Explanation of symbols

１ パンツ型おむつ
６ 股下域
６ａ 最下部
７ 前胴周り域
８ 後胴周り域
３１ 芯材
３２ 内面シート
３３ 外面シート
４１ 体液吸収部
４２ 防漏フラップ
５１ シート片（横断部材）
５１ａ 上縁部
５１ｂ 下縁部
５２ 中央部
５３ 側縁部
９０ 防漏カフ
１００ ポケット
Ａ 前後方向
Ｂ 横方向
Ｃ 上下方向 DESCRIPTION OF SYMBOLS 1 Pants type diaper 6 Inseam area 6a Bottom part 7 Front waist area 8 Rear waist area 31 Core material 32 Inner surface sheet 33 Outer surface sheet 41 Body fluid absorption part 42 Leak-proof flap 51 Sheet piece (transverse member)
51a Upper edge part 51b Lower edge part 52 Center part 53 Side edge part 90 Leak-proof cuff 100 Pocket A Front-rear direction B Lateral direction C Vertical direction

Claims (5)

互いに直交する前後方向と横方向と上下方向とを有し、股下域と前記股下域の前方に位置する前胴周り域と前記股下域の後方に位置する後胴周り域とによってパンツ型に形成され、前記股下域と前記前胴周り域と前記後胴周り域とのうちの少なくとも前記股下域には透液性内面シートと不透液性外面シートとこれら両シート間に介在する体液吸収性の芯材とによって体液吸収部が形成されている使い捨てのパンツ型おむつであって、
前記股下域には、前記内面シートの内側において前記股下域を横断するシート片が設けられ、
前記シート片は、前記横方向へ互いに並行して延びる上縁部と下縁部と、前記上下方向へ互いに並行して延びる両側縁部とを有し、前記上縁部の前記横方向の中央部が前記股下域の最下部よりも前方において前記股下域の前記横方向の中央部に接合するとともに、前記両側縁部のそれぞれが前記股下域の前記最下部よりも後方において前記股下域の両側縁部それぞれに接合しており、前記上縁部に接合する前記股下域の前記中央部が前記おむつの着用状態において前記おむつの内側に向かって突出可能に形成されていることを特徴とする前記パンツ型おむつ。 It has a front-rear direction, a lateral direction, and an up-down direction perpendicular to each other, and is formed into a pants shape by a crotch region, a front waist region located in front of the crotch region, and a rear waist region located behind the crotch region And at least the crotch region of the crotch region, the front waist region, and the rear waist region has a liquid-permeable inner sheet, a liquid-impervious outer sheet, and a body fluid absorbency interposed between the two sheets. A disposable pants-type diaper in which a body fluid absorption part is formed by the core material of
The crotch region is provided with a sheet piece that crosses the crotch region inside the inner sheet,
The sheet piece has an upper edge portion and a lower edge portion extending in parallel with each other in the lateral direction, and both side edge portions extending in parallel with each other in the vertical direction, and the lateral center of the upper edge portion. A portion joined to the lateral central portion of the crotch region in front of the lowermost part of the crotch region, and each of the side edge portions on both sides of the crotch region behind the lowermost part of the crotch region It is joined to each edge part, and the central part of the crotch region joined to the upper edge part is formed so as to be able to protrude toward the inside of the diaper when the diaper is worn. Pants-type diaper. 前記股下域の前記両側縁部が、前記体液吸収部の両側縁部、前記体液吸収部の前記両側縁部それぞれから前記横方向へ延出する防漏フラップ、前記体液吸収部の前記両側縁部それぞれにおいて前記体液吸収部に対して起立可能に形成された防漏カフのいずれかである請求項１記載のパンツ型おむつ。   The side edge portions of the crotch region are both side edge portions of the body fluid absorbing portion, leakage preventing flaps extending from the both side edge portions of the body fluid absorbing portion in the lateral direction, and both side edge portions of the body fluid absorbing portion. The underpants type diaper according to claim 1, wherein each of the pants is a leak-proof cuff formed so as to be able to stand up with respect to the body fluid absorbing portion. 前記シート片が前記横方向において弾性的に伸長可能なものである請求項１または２記載のパンツ型おむつ。   The pants-type diaper according to claim 1 or 2, wherein the sheet piece is elastically extendable in the lateral direction. 前記シート片は、前記上縁部と前記下縁部との間の寸法が少なくとも５０ｍｍであって、前記股下域の前記最下部よりも後方の部分との間に便を受容可能なポケットを形成している請求項１〜３のいずれかに記載のパンツ型おむつ。   The sheet piece has a dimension between the upper edge portion and the lower edge portion of at least 50 mm, and forms a pocket that can receive stool between the lowermost portion of the crotch region and the lowermost portion. The underpants type diaper in any one of Claims 1-3. 前記シート片の前記下縁部が前記内面シートに接合している請求項１〜４のいずれかに記載のパンツ型おむつ。   The underpants type diaper according to any one of claims 1 to 4, wherein the lower edge portion of the sheet piece is joined to the inner surface sheet.
JP2007158987A 2007-06-15 2007-06-15 Disposable pants-type diapers Expired - Fee Related JP4818993B2 (en)

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US9011404B2 (en) 2009-07-01 2015-04-21 Kao Corporation Pull-on absorbent article and method of making the same
US9028461B2 (en) 2010-12-28 2015-05-12 Kao Corporation Pull-on wear article and method for producing the same
CN114376801A (en) * 2022-02-24 2022-04-22 福建恒安集团有限公司 Three-dimensional pants-type sanitary napkin containing crotch extension sheet and preparation method thereof

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US9011404B2 (en) 2009-07-01 2015-04-21 Kao Corporation Pull-on absorbent article and method of making the same
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CN114376801A (en) * 2022-02-24 2022-04-22 福建恒安集团有限公司 Three-dimensional pants-type sanitary napkin containing crotch extension sheet and preparation method thereof
CN114376801B (en) * 2022-02-24 2023-01-10 福建恒安集团有限公司 Three-dimensional pants-type sanitary towel containing crotch extension sheet and preparation method thereof

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