JP4825149B2 - Disposable body fluid treatment goods - Google Patents

Disposable body fluid treatment goods Download PDF

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JP4825149B2
JP4825149B2 JP2007037116A JP2007037116A JP4825149B2 JP 4825149 B2 JP4825149 B2 JP 4825149B2 JP 2007037116 A JP2007037116 A JP 2007037116A JP 2007037116 A JP2007037116 A JP 2007037116A JP 4825149 B2 JP4825149 B2 JP 4825149B2
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surface member
longitudinal direction
direction
contact side
skin
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JP2007175515A (en )
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祥宜 三嶋
尚子 小形
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ユニ・チャーム株式会社
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本発明は、使い捨ておむつや生理用ナプキン、吸収性パッド等の使い捨ての体液処理物品に関する。 The present invention is a disposable diaper, a sanitary napkin, a disposable body fluid treatment articles, such as absorbent pad.

特開平11−318976号公報は、肌当接側に位置する液透過性表面シートと、肌非当接側に位置する液不透過性裏面シートと、それらシートの間に介在する吸液性コアとから構成され、縦方向に前胴周り域および後胴周り域と、それら胴周り域の間に位置する股下域とを備え、コアの上部に位置して横方向へ延びる複数条の凸部が縦方向へ所与寸法離間して並ぶ使い捨ておむつを開示している。 JP 11-318976 discloses includes a liquid-permeable topsheet which is positioned on the skin contact side, a liquid impermeable backsheet which is located non-skin contact side, the liquid-absorbent core disposed between these sheets is composed of a, longitudinally front waist region and a rear waist region and, and a crotch region extending between these waist regions, the convex portions of plural rows extending in the transverse direction located in the upper part of the core There has been disclosed a disposable diaper arranged spaced a given dimension in the longitudinal direction.

凸部は、吸収性素材とそれを被覆する前記表面シートとから形成され、おむつの略後半分に位置している。 Convex portion is formed from the surface sheet covering the absorbent material and it is located substantially after half of the diaper. このおむつでは、それら凸部が軟便や水様便等の流動性排泄物に対する障壁を形成し、排泄物の縦方向への流動を防止することができる。 In this diaper, it is possible that they protrusion forms a barrier to flow of exudates loose stool or watery feces or the like, to prevent flow in the longitudinal direction of the excrement.

前記公報に開示のおむつは、流動性排泄物の横方向への流動を防止する手段を有さず、表面シート上を拡散した排泄物がおむつの両側縁部へ向かって流動することを防ぐことができない。 The diaper disclosed in the publication, to prevent no means for preventing flow in the lateral direction of the flowable waste, excreta diffused over the surface sheet flows toward the both side edges of the diaper can not. このおむつでは、排泄物がコアの両側縁の外側に漏出してそこに滞留してしまう場合がある。 In this diaper, there is a case where excrement will staying there leaking to the outside of the opposite side edges of the core.

本発明の課題は、尿や軟便、水様便、経血等の体液の縦方向と横方向とへの流動を防止することができ、体液をコアに確実に吸収、保持させることができる使い捨ての体液処理物品を提供することにある。 Disposable object of the present invention, the urine and loose passage, watery feces, it is possible to prevent flow into the vertical direction and the horizontal direction of the body fluid such as menstrual blood, reliably absorb body fluids into the core can be held and to provide a body fluid treating articles.

前記課題を解決するための本発明の前提は、縦方向及び前記縦方向と交差する横方向と、肌当接側とその反対側の非肌当接側とを有し、前記非肌当接側に位置する液不透過性のベースシートと、前記ベースシートの内面に配置された吸液性コアと、前記肌当接側に位置して前記コアの少なくとも一部を覆う液透過性の表面部材とから構成され、前記表面部材が、前記コアから前記肌当接側へ隆起して前記横方向へ延びるとともに前記縦方向へ所与寸法離間して並ぶ複数条の凸部と、前記凸部の間で前記横方向へ延びる複数条の凹部とを有する使い捨ての体液処理物品である。 Premise of the present invention for solving the above problems includes a transverse direction crossing the longitudinal direction and the vertical direction, the a skin contacting side and a skin noncontacting side of the opposite side, the skin noncontacting a liquid-impermeable base sheet located on the side, the base and the liquid-absorbent core disposed on the inner surface of the sheet, covering at least part liquid permeable surface of the core located in the skin contact side is composed of a member, said surface member, the convex portion of the plural rows arranged spaced a given dimension from the core to the longitudinal direction extends into the laterally raised to the skin contact side, the convex portion a body fluid treating articles of the disposable having a recess plural rows extending in the front Kiyoko direction between.

前記前提における本発明の特徴は、前記表面部材の前記凹部において、その厚み方向へ貫通して体液が通過可能な複数の開孔部が形成されており、前記開孔部が前記縦方向及び前記横方向へ所与寸法離間して並び、かつ、前記縦方向へ連なることなく該縦方向へ互い違いに並んでおり、前記表面部材の前記凸部及び前記凹部において、それらを形成する親水性繊維からなる繊維集合物の前記非肌当接側の繊維密度が、前記肌当接側の繊維密度よりも高く、前記開部の前記横方向における長さ寸法と、前記横方向において隣り合う前記開部どうしの離間寸法とがほぼ等しいことにある。 Feature of the present invention, in the recess of said surface member, the through thickness direction body fluids are formed a plurality of openings capable of passing, the opening is the longitudinal direction and the in the premise Sort spaced a given dimension in the transverse direction, and wherein are arranged alternately to said longitudinal direction without continuing in the longitudinal direction, in the convex portion and the concave portion of said surface member, the hydrophilic fibers forming them fiber density of the non-skin contact side of the made fiber assembly is the skin higher than the fiber density of the contact side, a length dimension in the transverse direction of the open hole, the opening adjacent in the transverse direction and spacing dimension of the hole each other is in a substantially equal.

本発明の実施の態様の他の一例としては、前記方向へ並ぶ前記開孔部の個数が2〜10個、前記方向へ並ぶ前記開孔部の個数が5〜25個の範囲内にあり、前記開孔部の面積が15〜600mm の範囲にある。 Another preferred embodiment of this invention, 2-10 number of the opening portions arranged to the transverse direction, within the number of 5 to 25 pieces of the opening portions arranged to the longitudinal direction There, the area of the opening is in the range of 15~600mm 2.

本発明にかかる使い捨ての体液処理物品によれば、複数条の凸部が横方向に延び、隣り合う凸部の間を凹部が横方向に延びているので、これら凸部が軟便等の流動性排泄物に対する障壁となり、 表面部材に形成された開孔部が排泄物の縦方向への流動を防止するとともに、表面部材を形成する繊維集合物の下部の繊維密度が、その上部の繊維密度よりも高いので、表面部材に吸収された体液が速やかに下方に流れてコアに吸収、保持され、排泄物が表面部材の外面に逆戻りすることはない。 According to a disposable body fluid treatment article according to the present invention, extending protrusion of the plural rows are laterally since the recess between the protrusions adjacent extends transversely, the fluidity of these projections and the like loose feces a barrier against bodily waste, along with the opening portion formed on the surface member to prevent the flow in the longitudinal direction of the excreta, the lower the fiber density of the fiber assembly to form the surface member, than the fiber density of the upper since even high absorbent core body fluid that has been absorbed into the surface member flows immediately downward, is held, excretion can not be back to the outer surface of the surface member.

表面部材の前記凹凸部のうちの少なくとも凹部において、その厚み方向へ貫通して体液が通過可能な多数の開孔部が形成されており、開孔部が縦方向及び横方向へ所与寸法離間して並んでいる実施の形態においては、体液が表面部材を透過するとともに開孔部を通過してコアに吸収、保持されるので、体液が表面部材の外面を拡散したとしても、体液が表面部材の周縁の外側へ漏出することはない。 In at least the recess of the uneven portion of the surface member, the through thickness direction body fluid are formed a number of apertures can pass, the given dimension spaced openings are the longitudinal and transverse directions in the embodiment are arranged to, body fluids absorbed by the core through the opening as well as through the face member, because it is held, even the body fluid is diffused to the outer surface of the surface member, the body fluid surface It does not leak to the outside of the periphery of the member.

表面部材において、前記表面部材において、前記凹凸部が前記上層繊維集合物から形成されており、前記下層繊維集合物からなる上方に突出した凸条部が前記凸部内の厚み方向中央部分にまで延びている実施の形態においては、凸条部が凸部の中芯の役割を果たし、凸部が凹部へ不用意に倒伏することを防ぐことができる。 In the surface member, in said surface member, extending the concave-convex portion is formed from the upper fiber assembly, convex portion projecting upwardly comprising the lower fiber assembly until the thickness direction central portion within said projecting portion in the embodiment in which plays the role of a core in the convex portion is convex portion, the convex portion can be prevented from being collapsed inadvertently into the recess.

添付の図面を参照し、本発明にかかる使い捨ての体液処理物品の詳細を、開放型の使い捨ておむつと生理用ナプキンとを例として説明すると、以下のとおりである。 With reference to the accompanying drawings, the details of the disposable body fluid treatment article according to the present invention, when an open-type disposable diaper and a sanitary napkin is described as an example, is as follows.

図1,2は、使い捨ておむつ1の部分破断斜視図と、図1の表面部材2の斜視図とであり、図3,4は、図1のA−A線矢視断面図と、図1のB−B線矢視断面図とである。 1 and 2, a partial cutaway perspective view of the disposable diaper 1 is in a perspective view of a surface member 2 of Figure 1, Figure 3 and 4, the A-A sectional view taken along line of FIG. 1, FIG. 1 it is and sectional view taken along line B-B. 図1,2では、横方向を矢印Xで示し、縦方向を矢印Yで示す。 In Figure 2, a transverse direction is indicated by an arrow X, a longitudinal direction is indicated by an arrow Y.

おむつ1は、肌当接側とその反対側の非肌当接側とを有し、肌当接側に位置する液透過性の表面部材2と、肌非当接側に位置する液不透過性のベースシート3と、それらの間に介在する吸液性のコア4と、実質的に液不透過性の防漏カフ5とから構成されている。 The diaper 1 has a skin contacting side and a skin noncontacting side of the opposite side, a liquid-permeable surface member 2 located on the skin contact side, the liquid located in the non-skin contact side impermeable a base sheet 3 of sex, the liquid-absorbent core 4 interposed therebetween, and a substantially liquid-impermeable leak-barrier cuffs 5. コア4は、表面部材2とベースシート3との内面に接合されている。 The core 4 is bonded to the inner surface of the surface member 2 and the base sheet 3. おむつ1は、縦方向に前胴周り域14および後胴周り域16と、それら胴周り域14,16の間に位置する股下域15とを有する。 The diaper 1 has a longitudinal direction in the front waist region 14 and the rear waist region 16, a crotch region 15 extending between these waist regions 14, 16.

ベースシートは3、互いに重なり合う実質的に液不透過性の二枚の繊維不織布3a,3bから形成され、その平面形状が砂時計型を呈する。 The base sheet 3, substantially liquid impermeable two fibrous nonwoven fabric 3a mutually overlapping is formed from 3b, the planar shape exhibits an hourglass type. ベースシート3は、横方向へ延びる両端縁部6と縦方向へ延びる両側縁部7とを画成している。 The base sheet 3 defines the side edges 7 extending across the edge 6 and longitudinally extending in the transverse direction. 両側縁部7は、股下域14において内方へ向かって弧を画いている。 Side edges 7 Egai arc toward the crotch region 14 inwardly.

両端縁部6には、横方向へ延びる帯状の胴周り用弾性部材8が伸長状態で取り付けられている。 At both edges 6, the strip of waist elastic members 8 extending in the transverse direction are attached in a stretched state. 両側縁部7には、股下域15を縦方向へ延びる複数条の脚周り用弾性部材9が伸長状態で取り付けられている。 The opposite side edges 7, leg elastic members 9 of plural rows extending crotch region 15 in the longitudinal direction are attached in a stretched state. 胴周り用弾性部材8と脚周り用弾性部材9とは、ベースシート3を形成する不織布3a,3bの間に介在し、それら不織布3a,3bに固着されている。 The waist elastic members 8 and the leg elastic members 9, nonwoven 3a forming the base sheet 3 interposed between 3b, they nonwoven 3a, it is secured to 3b.

表面部材2は、多数の親水性繊維からなる繊維集合物13であり、縦方向へ長い略矩形を有する。 Surface member 2 is a fiber assembly 13 comprising a plurality of hydrophilic fibers, having a long substantially rectangular to the longitudinal direction. 表面部材2は、カフ5の間に位置し、股下域15を中心に前後胴周り域14,16へ向かって延びている。 Surface member 2 is positioned between the cuff 5 extends toward the front and rear waist regions 14, 16 around the crotch region 15. 表面部材2は、コア4から上方へ隆起して横方向へ延びる複数条の凸部2aと、凸部2aの間に位置して横方向へ延びる複数条の凹部2bとを有する。 Surface member 2 has a convex portion 2a of the plural rows extending in the transverse direction and raised from the core 4 to the upward and the recess 2b of the plural rows extending in the transverse direction is located between the convex portion 2a. 凸部2aは、縦方向へ所与寸法離間して並んでいる。 Protrusions 2a are arranged spaced a given dimension in the longitudinal direction.

表面部材2では、それを形成する親水性繊維集合物の下部の繊維密度が、その上部の繊維密度よりも高くなっている。 In the surface member 2, the lower portion of the fiber density of the hydrophilic fiber assembly from which it is formed is higher than the fiber density of the top. 表面部材2の凹部2bには、表面部材2を厚み方向へ貫通する多数の開孔部2cが横方向へ所与寸法離間して並んでいる。 The recess 2b of the surface member 2, a large number of openings 2c that penetrates the surface member 2 in the thickness direction are arranged spaced a given dimension in the transverse direction.

表面部材2では、その外面に排泄された尿や軟便、水様便等の流動性排泄物が表面部材2を透過可能かつ開孔部2cを通過可能である。 In the surface member 2, urine and loose stool excreted on its outer surface, flowable excrement such as watery feces can pass through the permeable and opening 2c of the surface member 2. 表面部材2では、それを形成する親水性繊維集合物の下部の繊維密度が、その上部の繊維密度よりも高いので、表面部材2に滲入した排泄物が毛細管現象によって表面部材2の厚み方向上方から下方へ向かって速やかに移動する。 In the surface member 2, the lower portion of the fiber density of the hydrophilic fiber assembly to form that it is higher than the fiber density of the upper, infiltrating the excrement thickness direction above the surface member 2 by capillary action to the surface member 2 to move quickly toward downward from. 表面部材2に滲入した排泄物は、それを透過してコア4に達して吸収、保持されるので、排泄物が表面部材2の外面に逆戻りすることはない。 Excrement was insult to the surface member 2, the absorption reached after passing through the core 4 it, since it is retained, excretion can not be back to the outer surface of the surface member 2.

表面部材2では、排泄物が表面部材2に滲入する前に、表面部材2の外面を拡散したとしても、表面部材2の凸部2aが排泄物に対する障壁となるので、排泄物の縦方向への流動を防ぐことができる。 In the surface member 2, before the excrement to seep to the surface member 2, even if spread an outer surface of the surface member 2, the convex portion 2a of the surface member 2 is a barrier to excrement, in the longitudinal direction of the excrement it is possible to prevent the flow. また、表面部材2では、排泄物が凹部2bにおいて横方向へ拡散したとしても、拡散する過程で排泄物が開孔部2cに進入し、開孔部2cを通ってコア4に吸収、保持されるので、排泄物の横方向への流動を防止することができる。 Further, the surface member 2, even if the diffusion in the lateral direction in the excrement recess 2b, excrement in the process of spreading enters the opening 2c, absorbent core 4 through the opening 2c, is retained Runode, it is possible to prevent the flow in the lateral direction of the excrement.

表面部材2では、縦方向へ連なる開孔部2cの個数が5〜25個、横方向へ連なる開孔部2cの個数が2〜10個の範囲にあることが好ましい。 In the surface member 2, 5-25 or the number of apertures 2c continuing in the longitudinal direction, the number of openings 2c continuing the transverse direction is preferably in the 2-10 range. また、表面部材2では、開孔部2cの面積が15〜600mm の範囲にあることが好ましい。 Further, the surface member 2, it is preferable that the area of the opening portion 2c is in the range of 15~600Mm 2. 開孔部2cの面積が15mm 未満の場合では、排泄物が開孔部2cを通過し難く、排泄物の横方向の拡散を防ぐことができない。 If the area of the opening portion 2c is less than 15 mm 2, the excrement hardly passes through the opening 2c, it is impossible to prevent the lateral diffusion of excrement. 開孔部2cの面積が600mm を超過すると、開孔部2cの個数にもよるが、表面部材2の大半を開孔部2cが占めることになり、表面部材2に複数条の凸部2aを形成することが難しい。 If the area of the opening portion 2c is more than 600 mm 2, depending on the number of openings 2c, it becomes the majority of the surface member 2 that occupied by the opening 2c, the convex portion 2a of the plural rows on the surface member 2 it is difficult to form a.

おむつ1では、表面部材2の周縁の外側に排泄物が漏出することはなく、排泄物をコア4に確実に吸収、保持させることができる。 In the diaper 1, never excrement to the outside of the periphery of the surface member 2 leaks, reliably absorbed exudates into the core 4 can be held. また、おむつ1では、それを着用したときに、表面部材2の凸部2aが着用者の肌に接触するので、表面部材2の外面全域が着用者の肌に接触することはなく、着用者の肌に対する表面部材2の接触面積を少なくすることができる。 Furthermore, the diaper 1, when wearing it, the convex portion 2a of the surface member 2 is in contact with the wearer's skin, not the outer surface entire surface member 2 is in contact with the skin of the wearer, wearer it can be reduced contact area of ​​the surface member 2 to the skin.

後胴周り域16の両側縁部7には、一対のテープファスナ10が取り付けられている。 The opposite side edges 7 of the rear waist region 16 are a pair of tape fasteners 10 are attached. 前胴周り域14におけるベースシート3の外面には、テープファスナ10の止着域となるターゲットテープ11が取り付けられている。 The outer surface of the base sheet 3 in the front waist region 14, a target tape 11 serving as a fastening zone for the tape fasteners 10 are attached.

テープファスナ10は、後胴周り域16の両側縁部7に固着された基端部と、ターゲットテープ11に係脱可能に止着する自由端部とを有する。 Tape fasteners 10 has a proximal end secured to the side edge portions 7 of the rear waist region 16 and a free end which fastened detachably to the target tape 11. テープファスナ10の自由端部には、粘着剤(図示せず)が塗布されている。 The free end of the tape fasteners 10, adhesive (not shown) is applied. 自由端部は、表面部材2の外面の側へ向かって折曲され、カフ5に仮着されている。 The free end is bent toward the side of the outer surface of the surface member 2, and is temporarily attached to the cuff 5. ターゲットテープ11は、可撓性を有するプラスチックフィルムから形成されている。 Target tape 11 is formed from a plastic film having flexibility.

カフ5は、ベースシート3の両側縁部7を縦方向へ延びている。 Cuff 5 extends both side edge portions 7 of the base sheet 3 in the longitudinal direction. カフ5は、コア4の両側縁4bの外側近傍を縦方向へ延びる固定縁部5aと、固定縁部5aに並行して縦方向へ延びる自由縁部5bと、前後胴周り域14,16に位置しておむつ1の横方向内方へ倒伏した固定両端部5cとを有する。 Cuff 5 has a fixed edge 5a that extends outside the vicinity of opposite side edges 4b of the core 4 in the longitudinal direction, a free edge 5b extending in the longitudinal direction in parallel to the fixed edge 5a, the front and rear waist regions 14, 16 and a fixed end portions 5c of the collapsed inward in the transverse direction of the diaper 1 in position. 自由縁部5bには、縦方向へ延びる弾性部材12が伸長状態で取り付けられている。 The free edge 5b, the elastic member 12 extending in the longitudinal direction are attached in a stretched state. 弾性部材12は、自由縁部5bの一部に被覆されている。 The elastic member 12 is covered with a portion of the free edge 5b.

カフ5では、固定縁部5aから横方向外方へ側縁部5dが延びている。 In the cuff 5, the side edge portions 5d extends from the fixed edge 5a laterally outward. カフ5は、その固定縁部5aがベースシート3の側縁部7に固着され、その固定両端部5cがベースシート3の端縁部6に固着されている。 Cuff 5 has its fixed edge 5a is fixed to the side edge 7 of the base sheet 3, the fixing end portions 5c are fixed to the end edge 6 of the base sheet 3.

図1では、おむつ1が表面部材2を内側にして縦方向へ湾曲し、カフ5の自由縁部5bが縦方向へ収縮して自由縁部5bが表面部材2の上方へ起立している。 In Figure 1, the diaper 1 is curved in the longitudinal direction by a surface member 2 on the inside, the free edge 5b free edge 5b of the cuff 5 is contracted in the longitudinal direction are erected above the surface member 2. おむつ1では、起立したカフ5の自由縁部5bが排泄物に対する障壁を形成し、股下域15における両側縁部7からの排泄物の漏れを防ぐことができる。 In the diaper 1, the free edge 5b of the standing cuff 5 forms a barrier against body waste, it is possible to prevent leakage of excrement from the side edge portions 7 of the crotch region 15.

おむつ1では、ベースシート3の端縁部6がコア4の端縁4aから縦方向へ延び、ベースシート3の側縁部7とカフ5の側縁部5dとがコア4の側縁4bから横方向へ延びている。 In the diaper 1, the base end edge 6 of the sheet 3 extends from the end edge 4a of the core 4 in the longitudinal direction, base side edge 7 of the seat 3 and the side edge portion 5d and the side edges 4b of the core 4 of the cuff 5 and it extends in the transverse direction. 側縁部7と側縁部5dとは、それら側縁部7,5dの互いに重なり合う部分が固着されている。 The side edges 7 and the side edge portion 5d, together overlapping portions thereof side edges 7,5d is fixed.

おむつ1を着用するには、後胴周り域16に位置するベースシート3の両側縁部7を前胴周り域14に位置するベースシート3の両側縁部7の外側に重ね合わせ、テープファスナ10の自由端部をターゲットテープ11に止着して前後胴周り域14,16を連結する。 To wear the diaper 1 is superposed on the outside of the side edge portions 7 of the base sheet 3 located the side edge portions 7 of the base sheet 3 located in the rear waist region 16 to the front waist region 14, the tape fastener 10 connecting the front and rear waist regions 14, 16 secured to the free end portion to the target tape 11. 前後胴周り域14,16が連結されたおむつ1には、胴周り開口と、脚周り開口とが画成される。 The diaper 1 front and rear waist regions 14, 16 are connected, and the waist opening, and the leg-holes are defined.

おむつ1では、表面部材2が後胴周り域16を除く股下域15と前胴周り域14とに位置していてもよく、表面部材2が前胴周り域14を除く股下域15と後胴周り域16とに位置していてもよい。 In the diaper 1, it may be located in the crotch region 15 surface member 2 except the rear waist region 16 and the front waist region 14, a rear and crotch region 15 surface member 2 except the front waist region 14 waist it may be located in and around the region 16. また、おむつ1では、表面部材2が股下域15を除く前胴周り域14と後胴周り域16との少なくとも一方に位置していてもよい。 Furthermore, the diaper 1, the surface member 2 may be positioned on at least one of the rear waist region 16 and the front waist region 14 except the crotch region 15.

図5,6は、生理用ナプキン20の部分破断斜視図と、図5の表面部材24の斜視図とであり、図7,8は、図5のC−C線矢視断面図と、図5のD−D線矢視断面図とである。 5 and 6, a partially cutaway perspective view of the sanitary napkin 20 is in a perspective view of the surface member 24 of FIG. 5, 7 and 8, a sectional view taken along line C-C of FIG. 5, FIG. 5 is a D-D sectional view taken along line. 図5,6では、横方向を矢印Xで示し、縦方向を矢印Yで示す。 In FIGS. 5 and 6, a transverse direction is indicated by an arrow X, a longitudinal direction is indicated by an arrow Y.

ナプキン20は、肌当接側とその反対側の非肌当接側とを有し、肌当接側に位置する液透過性シート21と、肌非当接側に位置する液不透過性のベースシート22と、それらシート21,22の間に介在する吸液性コア23および液透過性の表面部材24とから構成されている。 Napkin 20 has a skin contacting side and a skin noncontacting side of the opposite side, a liquid-permeable sheet 21 located on the skin contact side, located on the skin non-contacting side liquid-impermeable the base sheet 22, and a liquid-absorbent core 23 and liquid permeable surface member 24. interposed between these sheets 21, 22. コア23は、ベースシート23と表面部材24との内面に接合されている。 The core 23 is bonded to the inner surface of the base sheet 23 and the surface member 24. 表面部材24は、液透過性シート21の内面に固着されている。 Surface member 24 is fixed to the inner surface of the liquid-permeable sheet 21.

ナプキン20は、横方向へ延びる両端縁部25と縦方向へ延びる両側縁部26とを有する。 Napkin 20 has a side edge portion 26 extending to the opposite end edges 25 and the longitudinal direction extending in the transverse direction. ナプキン20では、液透過性シート21とベースシート22との端縁部21a,22aがコア23の端縁23aから縦方向へ延び、それら端縁部21a,22aの互いに重なり合う部分が固着されている。 In napkin 20, the edge portion 21a of the liquid-permeable sheet 21 and the base sheet 22, 22a extends from the edge 23a of the core 23 in the longitudinal direction, their edges 21a, each other overlapping portion of 22a is fixed . ナプキン20では、液透過性シート21とベースシート22との側縁部21b,22bがコア23の側縁23bから横方向へ延び、それら側縁部21b,22bの互いに重なり合う部分が固着されている。 In napkin 20, the side edge portions 21b of the liquid-permeable sheet 21 and the base sheet 22, 22b extends from the side edge 23b of the core 23 in the transverse direction, they side edges 21b, mutually overlapping portions of 22b are fixed . ベースシート22の外面には、ナプキン20をショーツの内側に貼着するための粘着剤(図示せず)が塗布されている。 The outer surface of the base sheet 22, adhesive for adhering the napkin 20 to the inside of the shorts (not shown) is applied.

表面部材24は、多数の親水性繊維からなり、厚み方向へ互いに重なり合う二つの上下層繊維集合物27,28から形成された積層部材であって、略矩形を呈している。 Surface member 24 is made of a number of hydrophilic fibers, a laminated member formed of two upper and lower layers fiber assembly 27, 28 overlap each other in the thickness direction has a substantially rectangular. 上層繊維集合物27は、上方へ隆起して横方向へ延び、縦方向へ所与寸法離間して並んでいる複数条の凸部24aと、凸部24aの間に位置して横方向へ延びる複数条の凹部24bとからなり、凸部24aの内部には、下層繊維集合物28からなる上方に突出した凸条部28aがその厚み方向中央部24dにまで延びている。 Upper fiber assembly 27, extends laterally raised upwardly, extending the convex portion 24a of plural rows which are arranged spaced a given dimension in the longitudinal direction, is located between the convex portion 24a in the transverse direction consists of a recess 24b of the plural rows, inside of the protrusions 24a, the ridge portions 28a projecting upward including the lower fiber assembly 28 extends to its thickness direction central portion 24d. このように、上層繊維集合物27から形成された凸部24aの内部に上層繊維集合物27よりも高密度の下層繊維物28からなる凸条部28aが延びているので、凸条部28aが凸部24aの中芯の役割をして、凸部24aが凹部24bに向かって不用意に倒伏することを防ぐことができる。 Thus, since the convex portion 28a made of a high density of the underlying fiber material 28 than the upper fiber assembly 27 to the inside of the convex portion 24a formed from the upper layer fiber assembly 27 extends, the convex portion 28a and the role of the core in the convex portion 24a, the convex portion 24a can be prevented from being collapsed inadvertently toward the recess 24b.

表面部材24では、その厚み方向下方に位置する下層繊維集合物28の坪量がその厚み方向上方に位置する上層繊維集合物27のそれよりも大きく、下層繊維集合物28の密度が上層繊維集合物27のそれよりも高い。 In the surface member 24, the upper fiber assembly 27 greater than that of a density upper fiber assembly of the lower fiber assembly 28 to the basis weight of the lower fiber assembly 28 is positioned in the thickness direction above which is positioned in the thickness direction downwards higher than that of the object 27. 上層繊維集合物27では、その坪量が20〜200g/m の範囲にあることが好ましく、その密度が0.0004〜0.04g/cm の範囲にあることが好ましい。 In the upper fiber assembly 27, it is preferable that the basis weight is in the range of 20 to 200 g / m 2, it is preferable that its density is in the range of 0.0004~0.04g / cm 3. 下層繊維集合物28では、その坪量が100〜250g/m の範囲にあることが好ましく、その密度が0.01〜0.25g/cm の範囲にあることが好ましい。 In the lower fiber assembly 28, it is preferable that the basis weight is in the range of 100 to 250 g / m 2, it is preferable that its density is in the range of 0.01~0.25g / cm 3.

表面部材24の凸部24aと凹部24bとには、表面部材24を厚み方向へ貫通する多数の開孔部24cが形成されている。 The the convex portion 24a and the concave portion 24b of the surface member 24, a large number of openings 24c which penetrates the surface member 24 in the thickness direction is formed. 開孔部24cは、凸部24aと凹部24bとを横方向へ所与寸法離間して並んでおり、縦方向へ隣り合う凸部24aでは、開孔部24cが縦方向へ連なることなく縦方向へ互い違いに並んでいる。 Openings 24c, the vertical direction without the convex portion 24a and the recess 24b in the lateral direction are arranged spaced apart a given size, the convex portion 24a adjacent to the vertical direction, the opening portion 24c is contiguous to the longitudinal direction They are arranged alternately to. このように、開孔部24cが縦方向へ連なることがないので、凸部24aが経血に対する障壁としての機能を失うことはなく、経血が外部へ漏出するおそれはない。 Thus, since the opening portion 24c is prevented from continuing in the longitudinal direction, the convex portion 24a is not to lose the function as a barrier to menstrual blood, menstrual blood is not fear of leakage to the outside.

液透過性シート21の外面に排泄された経血は、シート21を透過して表面部材24の外面に達する。 Menstrual blood excreted on the outer surface of the liquid-permeable sheet 21 reaches the outer surface of the surface member 24 passes through the sheet 21. 表面部材24の外面に達した経血は、表面部材24を透過可能かつ開孔部24cを通過可能であって、下層繊維集合物28の坪量が上層繊維集合物27のそれよりも大きく、下層繊維集合物28の密度が上層繊維集合物27のそれよりも高いので、表面部材24に滲入した経血が毛細管現象によって上層繊維集合物27から下層繊維集合物28に向かって速やかに移動する。 Menstrual blood that has reached the outer surface of the surface member 24, the surface member 24 a can pass through the permeable and openings 24c, the basis weight of the lower fiber assembly 28 is greater than that of the upper fiber assembly 27, the density of the lower layer fiber assembly 28 is higher than that of the upper fiber assembly 27, menstrual blood and insult to the surface member 24 is moved rapidly from the upper fiber assembly 27 towards the lower fiber assembly 28 by capillary action . 表面部材24に滲入した経血は、それを透過してコア23に達し、コア23に吸収、保持される。 Menstrual blood and insult to the surface member 24 is transmitted through it reaches the core 23, absorbent core 23, is held.

表面部材24では、経血が表面部材24に滲入する以前に、それが表面部材24の外面を拡散したとしても、表面部材24の凸部24aによって経血の縦方向への流動を防ぐことができる。 In the surface member 24, before the menstrual blood to seep to the surface member 24, even it is diffused an outer surface of the surface member 24, it is prevented from flowing in the longitudinal direction of the menstrual blood by the convex portion 24a of the surface member 24 it can. また、経血が凹部24bにおいて横方向へ拡散したとしても、拡散する過程で経血が開孔部24cに進入し、開孔部24cを通ってコア23に吸収、保持されるので、経血の横方向への流動を防止することができる。 Further, even menstrual blood is diffused in the lateral direction in the recess 24b, menstrual blood in the process of spreading enters the opening 24c, absorbent core 23 through the openings 24c, since it is retained, menses it is possible to prevent the flow in the lateral direction.

表面部材24では、凸部24aに経血が排泄されたとしても、経血が凸部24aに形成された開孔部24cを通ってコア23に達し、コア23に吸収、保持されるので、経血の凸部24aにおける拡散を防止することができる。 In the surface member 24, even menstrual blood on the convex portion 24a is excreted, menstrual blood reaches the core 23 through the opening 24c formed on the protrusion 24a, absorbent core 23, since it is retained, it is possible to prevent diffusion of the raised portion 24a of the menstrual blood.

表面部材24を形成する親水性繊維には、親水処理を施した熱可塑性合成樹脂繊維やパルプ繊維、再生繊維のいずれかまたはそれら繊維の混合物を使用することができる。 The hydrophilic fibers forming the surface member 24, it is possible to use thermoplastic synthetic resin fibers and pulp fibers subjected to hydrophilic treatment, either or mixtures thereof Fibers of regenerated fibers. 熱可塑性合成樹脂繊維には、ポリオレフィン系、ポリエステル系、ポリアミド系の繊維を使用することができる。 The thermoplastic synthetic resin fibers, can be used polyolefin, polyester, fibers of polyamide. 再生繊維には、レーヨンやアセテート等のセルロ−ス系繊維を使用することができる。 Playback fibers, cellulose such as rayon and acetate - can be used scan-based fibers. 表面部材24では、親水性繊維からなる繊維集合物13,25,26に高吸収性ポリマー粒子が混入されていてもよい。 In the surface member 24, the high-absorbent polymer particles to the fiber aggregate 13,25,26 consisting of hydrophilic fibers may be mixed. 高吸収性ポリマー粒子としては、デンプン系、セルロース系、合成ポリマー系のものを使用することができる。 The high-absorbent polymer particles, can be used starch-based, cellulose-based, those of synthetic polymer systems.

ベースシート3を形成する繊維不織布3a,3bには、疎水性繊維不織布や疎水性繊維不織布を重ね合わせた2層の不織布を使用することができる。 Fibrous nonwoven fabric 3a for forming the base sheet 3, the 3b, may be used two layers of non-woven fabric superimposed hydrophobic fibrous nonwoven fabric and a hydrophobic fibrous nonwoven fabric. また、ベースシート3には、液不透過性のプラスチックフィルムや疎水性繊維不織布に液不透過性のプラスチックフィルムを固着した複合シートを使用することができる。 Further, the base sheet 3, it is possible to use a composite sheet obtained by fixing a liquid-impermeable plastic film liquid-impermeable plastic film and hydrophobic fibrous nonwoven fabric. 防漏カフ5には、疎水性繊維不織布を使用することができる。 The leak-barrier cuffs 5 may be used a hydrophobic fibrous nonwoven fabric. 液透過性シート21には、親水性繊維不織布、または、微細な多数の開孔を有するプラスチックフィルムを使用することができる。 The liquid-permeable sheet 21, it is possible to use the hydrophilic fibrous nonwoven fabric or a plastic film having a plurality of apertures fine.

ベースシート3を形成する不織布3a,3bや防漏カフ5には、高い耐水性を有するメルトブローン法による繊維不織布を、高い強度を有しかつ柔軟性に富んだスパンボンド法による繊維不織布で挟んだ複合不織布を使用することもできる。 The nonwoven fabric 3a, 3b and leak-barrier cuffs 5 which forms the base sheet 3, a fibrous nonwoven according meltblown having high water resistance, sandwiched by fibrous nonwoven fabric by rich has and flexibility with high strength spunbonded it is also possible to use composite nonwoven fabric.

不織布としては、スパンレース、ニードルパンチ、メルトブローン、サーマルボンド、スパンボンド、ケミカルボンド、エアースルー、の各製法により製造されたものを使用することができる。 The nonwoven fabric may be used spun lace, needle punch, melt blown, thermal bond, spun bond, chemical bond, those manufactured by an air-through, each preparation of. 不織布の構成繊維としては、ポリオレフィン系、ポリエステル系、ポリアミド系、の各繊維、ポリエチレン/ポリプロピレン、または、ポリエチレン/ポリエステルからなる芯鞘型複合繊維または並列型複合繊維を使用することができる。 The component fiber of the nonwoven fabric, it is possible to use a polyolefin, polyester, polyamide, each fiber, polyethylene / polypropylene, or the core sheath of polyethylene / polyester conjugate fiber or a parallel type composite fiber.

コア4,23は、フラッフパルプと高吸収性ポリマー粒子との混合物、または、フラッフパルプと高吸収性ポリマー粒子と熱可塑性合成樹脂繊維との混合物であり、所要の厚みに圧縮されている。 The core 4, 23 is a mixture of fluff pulp and super-absorbent polymer particles or a mixture of fluff pulp, super-absorbent polymer particles and thermoplastic synthetic resin fibers and compressed to a desired thickness. それらコア4,23は、その型崩れやポリマー粒子の脱落を防止するためにその全体がティッシュペーパーに被覆、接合されていることが好ましい。 They cores 4 and 23, the coating in its entirety in order to prevent falling off of the shapeless and polymer particles in tissue paper, it is preferably joined.

表面部材2,24の固着や液透過性シート21の固着、コア4,23の接合、防漏カフ5の固着、弾性部材の8,9,12固着には、ホットメルト型接着剤、または、ヒートシールや超音波接合等の熱による溶着手段を使用することができる。 Sticking sticking and liquid-permeable sheet 21 of the surface member 2, 24, bonding of the core 4, 23, fixing of the leak-barrier cuffs 5, the 8, 9, 12 sticking of the elastic member, the hot-melt adhesive, or, can be used welding means by heat sealing or thermal ultrasonic bonding or the like.

この発明は、開放型のおむつ1や生理用ナプキン20の他に、前後胴周り域があらかじめ連結されたパンツ型のおむつやおむつカバーの内側に取り付けて使用する吸収性パッドにも実施することができる。 The present invention, in addition to the open-type diaper 1 and the sanitary napkin 20, also be implemented in the absorbent pad to be used attached to the inside of the diaper and diaper cover pants-type front and rear waist regions are connected in advance it can.

おむつの部分破断斜視図。 Partial cutaway perspective view of the diaper. 図1の表面部材の斜視図。 Perspective view of a surface member of FIG. 図1のA−A線矢視断面図。 A-A sectional view taken along line of FIG. 図1のB−B線矢視断面図。 Sectional view taken along line B-B of FIG. ナプキンの部分破断斜視図。 Partial cutaway perspective view of the napkin. 図5の表面部材の斜視図。 Perspective view of a surface member of Figure 5. 図5のC−C線矢視断面図。 Sectional view taken along line C-C of FIG. 5. 図5のD−D線矢視断面図。 D-D sectional view taken along line of FIG.

1 使い捨ておむつ(使い捨ての体液処理物品) 1 disposable diapers (body fluid treatment articles of the disposable)
2 液透過性表面部材 2a 凸部 2b 凹部 2c 開孔部 2d 外周面 2e 厚み方向中央部分 3 液不透過性ベースシート 4 吸液性コア 7 両端縁部 8 両側縁部13 繊維集合物20 生理用ナプキン22 液不透過性ベースシート23 吸液性コア24 液透過性表面部材24a 凸部24b 凹部24c 開孔部24d 厚み方向中央部分25 両端縁部26 両側縁部27 上層繊維集合物28 下層繊維集合物28a 凸条部 2 liquid permeable surface member 2a fin 2b recess 2c openings 2d outer peripheral surface 2e thickness center section 3 liquid-impermeable base sheet 4 liquid-absorbent core 7 both end edge 8 side edges 13 fiber assembly 20 sanitary napkin 22 liquid-impermeable base sheet 23 liquid-absorbent core 24 liquid-permeable surface member 24a convex portion 24b recess 24c opening 24d thickness direction center portion 25 both end edge 26 opposite side edges 27 upper fiber assembly 28 lower fiber assembly things 28a ridges

Claims (2)

  1. 縦方向及び前記縦方向と交差する横方向と、肌当接側とその反対側の非肌当接側とを有し、前記非肌当接側に位置する液不透過性のベースシートと、前記ベースシートの内面に配置された吸液性コアと、前記肌当接側に位置して前記コアの少なくとも一部を覆う液透過性の表面部材とから構成され、前記表面部材が、前記コアから前記肌当接側へ隆起して前記横方向へ延びるとともに前記縦方向へ所与寸法離間して並ぶ複数条の凸部と、前記凸部の間で前記横方向へ延びる複数条の凹部とを有する使い捨ての体液処理物品において、 A transverse direction crossing the longitudinal direction and the vertical direction, the skin contact side and the non-skin opposite and a contact side, the non-skin located on the abutting side liquid-impermeable base sheet, wherein the base sheet absorbent core disposed on the inner surface of the is composed of at least a portion covering the liquid-permeable surface member of the core situated in the skin contact side, said surface member, said core and plural rows of protruding portions arranged spaced a given dimension from the said longitudinal direction extends into the laterally raised to the skin contact side, the recess of the plural rows extending in the front Kiyoko direction between the convex portion the disposable body fluid treatment article having bets,
    前記表面部材の前記凹部において、その厚み方向へ貫通して体液が通過可能な複数の開孔部が形成されており、前記開孔部が前記縦方向及び前記横方向へ所与寸法離間して並び、かつ、前記縦方向へ連なることなく該縦方向へ互い違いに並んでおり、 In the concave portion of said surface member, the through thickness direction is formed body fluid a plurality of openings capable of passing by the opening is then given size spaced to the longitudinal direction and the transverse direction arrangement, and are arranged in a staggered to said longitudinal direction without continuing to the longitudinal direction,
    前記表面部材の前記凸部及び前記凹部において、それらを形成する親水性繊維からなる繊維集合物の前記非肌当接側の繊維密度が、前記肌当接側の繊維密度よりも高く、 In the convex portion and the concave portion of said surface member, the fiber density of the non-skin contact side thereof to form fiber assembly consisting of hydrophilic fibers is higher than the fiber density of the skin contact side,
    前記開部の前記横方向における長さ寸法と、前記横方向において隣り合う前記開部どうしの離間寸法とがほぼ等しいことを特徴する前記物品。 The article and the length dimension in the transverse direction of the aperture portion, and the spaced distance of the aperture portion to each other adjacent to each other in the transverse direction, characterized in that approximately equal.
  2. 前記横方向へ並ぶ前記開孔部の個数が2〜10個、前記縦方向へ並ぶ前記開孔部の個数が5〜25個の範囲内にあり、前記開孔部の面積が15〜600mm の範囲にある請求項1に記載の物品。 The transverse number of the openings arranged in the direction is 2-10, the number of the opening portions arranged to the longitudinal direction is within 5 to 25 amino range, the area of the opening is 15~600Mm 2 the article of claim 1 which is in the range of.
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EP2740452A1 (en) 2012-12-10 2014-06-11 The Procter and Gamble Company Absorbent article with high absorbent material content
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