JP2010063814A - Body fluid absorptive article - Google Patents

Body fluid absorptive article Download PDF

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JP2010063814A
JP2010063814A JP2008235501A JP2008235501A JP2010063814A JP 2010063814 A JP2010063814 A JP 2010063814A JP 2008235501 A JP2008235501 A JP 2008235501A JP 2008235501 A JP2008235501 A JP 2008235501A JP 2010063814 A JP2010063814 A JP 2010063814A
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body fluid
high compression
portion
compression portion
fluid absorbent
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JP5306753B2 (en )
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Ayako Akahira
Ikuya Saito
Akane Sakai
綾子 赤平
あかね 酒井
郁哉 齋藤
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Uni Charm Corp
ユニ・チャーム株式会社
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<P>PROBLEM TO BE SOLVED: To provide a body fluid absorptive article having a groove formed by compression. <P>SOLUTION: The body fluid absorptive article 1 has the groove 11 compressed and formed in a direction from a surface sheet 2 to a back surface sheet 3. At the bottom part of the groove 11, a low compression part 18 and a high compression part 19 are alternately formed, and a core material 4 is thicker in the low compression part 18 than in the high compression part 19. The low compression part 18 and the high compression part 19 are connected by inclined surfaces 22 and 23 having a smooth downward gradient, and the density of the core material 4 is gradually increased from the peak part 21 of the low compression part 18 to the high compression part 19. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、生理用ナプキンやおりもの吸収用のパッド等として使用するのに好適な体液吸収性物品に関する。 This invention relates to a suitable body fluid absorbent articles for use as a pad or the like for sanitary napkins and fabrics absorption.

生理用ナプキン等の体液吸収性物品において、横方向の両側に縦方向へ延びる圧搾溝が形成されているものは周知である。 In the body fluid absorbent articles such as sanitary napkins, which compression grooves on both sides of the lateral extending in the longitudinal direction are formed it is well known. その圧搾溝の底部に、体液吸収性の芯材が高密度に圧搾されている部位と、低密度に圧搾されている部位とが縦方向において交互に並ぶように形成されているものも周知である。 The bottom of the compressed groove, a portion body fluid absorbent core material is compressed at a high density, well known while others are formed such that the site being squeezed low density are alternately arranged in the longitudinal direction is there. 例えば、特開平9―108262号公報(特許文献1)に開示された生理用ナプキンは、ナプキンの長さ方向へ延びる一対の条溝を有し、条溝の底部には底部を横断するように延びる高圧搾部と低圧搾部とがナプキンの縦方向において交互に形成されている。 For example, sanitary napkins disclosed in Japanese Patent Laid-Open 9-108262 (Patent Document 1) has a pair of grooves extending in the longitudinal direction of the napkin, on the bottom of the groove so as to traverse the bottom a high compression portion and a low compression portion are alternately formed in the longitudinal direction of the napkin that extends. また、特開2002−119540号公報(特許文献2)には、高圧搾部と低圧搾部とが生理用ナプキンの縦方向へ交互に並んでいる溝を生理用ナプキンに形成するための加圧ロールとアンビルロールとからなる圧搾溝形成装置が開示されている。 Further, Japanese Patent 2002-119540 (Patent Document 2), a pressure for forming a groove and a high compression portion and a low compression portion are alternately arranged in the longitudinal direction of the sanitary napkin sanitary napkin compressed groove forming apparatus comprising a roll and the anvil roll is disclosed.
特開平9―108262号公報 JP-9-108262 discloses 特開2002−119540号公報 JP 2002-119540 JP

特許文献1に記載の条溝および特許文献2に記載の圧搾溝に形成された高圧搾部と低圧搾部とが生理用ナプキンの縦方向においてつながる態様は、水平な高圧搾部の表面を形成している溝の底部と、低圧搾部において溝を横断するように延びているほぼ垂直な壁面とが交差しているというものであって、圧搾溝の底部の下にある芯材の厚さは低圧搾部から高圧搾部へと移る部位において急激に変化する。 Aspects and high compression portion formed in compression groove according to grooves and Patent Document 2 described in Patent Document 1 and the low compression portion leading in the longitudinal direction of the sanitary napkin, forming a surface of the horizontal high compression portion the thickness of the to the bottom of the groove has been made in that a substantially vertical wall extending transverse to the grooves in the low compression portion are crossed, the core material under the bottom of the compressed groove changes abruptly at a site transfers to high compression unit from the low compression portion. そのような部位が形成される芯材の圧搾過程では、芯材を被覆している透液性シートの伸長割合が局所的に高くなって透液性シートが破れ、圧搾溝を外観の悪いものにしたり、透液性シートの破れた箇所から芯材がこぼれ出て、生理用ナプキンを着用感の悪いものにしたりすることがある。 Those in the pressing process of the core such sites are formed, broken liquid-pervious sheet elongation percentage of liquid-pervious sheet covering the core material becomes locally high, bad compression grooves of appearance or to, spill out the core material from the point of breaking liquid-permeable sheet, which may or in bad sense of wearing a sanitary napkin.

この発明は、このような問題を有する従来技術の体液吸収性物品に改良を施すことを課題にしている。 This invention is directed to the object applying the improved body fluid absorbent articles of the prior art having such a problem.

前記課題を解決するためにこの発明が対象とするのは、互いに直交する縦方向と横方向と厚さ方向とを有し、透液性表面シートと不透液性裏面シートとの間に体液吸収性の芯材が介在し、前記横方向の両側には前記表面シートと前記芯材とが前記表面シートから前記裏面シートへ向かう方向に圧搾されて前記縦方向へ延びる溝が形成され、前記溝の底部には、前記底部のうちで前記芯材の厚さが最も薄くなっている高圧搾部と、前記芯材の厚さが前記高圧搾部よりも厚くなっている低圧搾部とが前記縦方向に交互に形成されている体液吸収性物品である。 This invention is intended to solve the above problems, and a vertical and horizontal direction and a thickness direction which are orthogonal to each other, the body fluid between the liquid-permeable topsheet and liquid-impermeable backsheet absorbent core is interposed, on both sides of the transverse grooves extending in the longitudinal direction is pressed in a direction in which said core and said surface sheet is directed from the topsheet to the back sheet is formed, the at the bottom of the groove, and the high compression portion the thickness of the core material is thinnest among the bottom, the thickness of the core material and the low compression portion which is thicker than the high compression portions the longitudinal direction is a body fluid absorbent article are formed alternately.

かかる体液吸収性物品において、この発明が特徴とするところは、前記溝の底部では、前記低圧搾部が前記厚さ方向の上方に頂部を有し、前記縦方向において前記頂部と前記低圧搾部に隣接する前記高圧搾部とが滑らかな下り勾配を有する傾斜面でつながり、前記芯材の密度が前記頂部から前記高圧搾部に向かって次第に高くなっていることにある。 In such body fluid absorbent article, the place to which the present invention is characterized, in the bottom of the groove, the low compression portion has an apex above the thickness direction, the said top portion in the longitudinal direction low compression portion in connection with the inclined surface and the high compression portion adjacent has a smooth downward slope is that the density of the core material is gradually increased toward the high compression portions from the top.

この発明の好ましい実施形態の一つにおいて、前記体液吸収性物品を水平面に置いたときに、前記傾斜面と前記水平面との角度が20〜80°の範囲にある。 In one preferred embodiment of the present invention, when placed the body fluid absorbent article in a horizontal plane, the angle between the inclined surface and the horizontal plane is in the range of 20 to 80 °.

この発明の好ましい実施形態の一つにおいて、前記高圧搾部は、前記縦方向の寸法が1〜5mmの範囲にあって、前記横方向の寸法が2〜5mmの範囲にあり、前記低圧搾部は、前記縦方向の寸法が2〜8mmの範囲にあって、前記横方向の寸法が2〜5mmの範囲にある。 In one preferred embodiment of the present invention, the high compression portion, the longitudinal dimension is in the range of 1 to 5 mm, the dimension of the lateral is in the range of 2 to 5 mm, the low compression portion , the longitudinal dimension is in the range of 2 to 8 mm, the dimensions of the lateral is in the range of 2 to 5 mm.

この発明の好ましい実施形態の他の一つにおいて、前記高圧搾部と前記裏面シートとの間には粉砕パルプを含むティシュペーパが介在し、前記ティシューペーパが前記高圧搾部に密着している。 In one preferred embodiment of another present invention, tissue paper comprising a pulverized pulp between the backsheet and the high compression portion is interposed, the Tissue paper is in close contact with the high compression portion.

この発明に係る体液吸収性物品は、横方向の両側に形成された溝部における低圧搾部が厚さ方向の上方に頂部を有し、その頂部と低圧搾部に隣接する高圧搾部とが滑らかな下り勾配を有する傾斜面でつながっている。 The body fluid absorbent article according to the invention, has an upper on top of the low compression portion thickness direction of which is formed on both sides of the transverse groove, and the high compression portion adjacent to the low compression portion its top smoothly It is connected by inclined surfaces having a falling gradient. それゆえ、体液吸収性物品の表面シートと芯材とを圧搾して溝部を形成するときには、低圧搾部の頂部となるべき部位から高圧搾部となるべき部位に向かって徐々に圧縮の度合いを高めることができるから、表面シートが局部的に高い伸長割合で伸長されて破れるという問題の発生を抑えることができる。 Therefore, when forming the groove by pressing the topsheet and the core material of the body fluid absorbent article, the degree of gradually compressed toward the part to become the high compression portion from the portion to be the top of the low compression portion since it is possible to improve, it can topsheet suppress the occurrence of problem torn been extended in locally high elongation percentage.

体液吸収性物品として生理用ナプキンを例にとり、添付の図面を参照して、この発明の詳細を説明すると、以下のとおりである。 Taking an example sanitary napkins as body fluid absorbent article, with reference to the accompanying drawings, when describing the details of the present invention is as follows.

図1は、生理用ナプキン1の部分破断平面図であって、ナプキン1の互いに直交する縦方向と横方向と厚さ方向(図3参照)とがA,B,Cで示されている。 Figure 1 is a partially cutaway plan view of the sanitary napkin 1, the vertical and horizontal directions and the thickness direction (see FIG. 3) are shown A, B, with C perpendicular to each other of the napkin 1. ナプキン1は、透液性表面シート2と、不透液性裏面シート3と、体液吸収性の芯材4とを有し、芯材4は粉砕パルプ等の吸水性繊維または吸水性繊維と高吸水性ポリマー粒子等との混合物によって形成された吸水性材料の集合体6とこれをサンドウィッチしている2枚のティシューペーパ7a,7bとを含んでいる。 Napkin 1 includes a liquid-pervious topsheet 2, a liquid-impervious backsheet 3, and a core 4 of a body fluid absorbent core member 4 is high and the absorbent fibers or absorbent fibers such as crushed pulp two tissue paper 7a that sandwich this as aggregate 6 of the water absorbent material formed by a mixture of a water-absorbing polymer particles and the like, and a 7b. 表面シート2と裏面シート3とは芯材4の周縁から延出して重なり合い、その重なり合う部分は加熱下に加圧されて互いに接合し、周縁シール部8を形成している。 The topsheet 2 and the backsheet 3 overlapping extending from the peripheral edge of the core 4, the overlapping portion is joined together pressurized under heating to form a peripheral seal portion 8. ナプキン1の横方向Bの両側には縦方向Aへ延びる縦圧搾溝11が形成されており、縦方向Aの両端側には横方向Bへ延びる横圧搾溝12が形成されている。 On both sides of the transverse direction B of the napkin 1 have longitudinal compression grooves 11 extending in the longitudinal direction A are formed, the both ends in the longitudinal direction A transverse compression groove 12 extending in the transverse direction B is formed.

図2は、図1における縦圧搾溝11の部分IIの拡大図である。 Figure 2 is an enlarged view of a portion II of the longitudinal compression grooves 11 in FIG. 1. 縦圧搾溝11は、底部16と互いに対向する一対の側壁部17a,17bとを有し、底部16には、低圧搾部18と高圧搾部19とが縦方向Aに交互に並んでいる。 Vertical compression grooves 11, and a pair of side wall portions 17a, 17b facing each other with the bottom 16, the bottom 16, are arranged alternately with the low compression portion 18 to the high compression portion 19 Togatate direction A. 低圧搾部18と高圧搾部19とはまた、側壁部17a,17bと交差するように横方向Bへ延びている。 The low compression portion 18 and the high compression portion 19 also extends in the transverse direction B so as to intersect the side wall portion 17a, and 17b.

図3は、図2のIII−III線断面図である。 Figure 3 is a sectional view taken along line III-III in FIG. 2. 縦圧搾溝11において縦方向Aへ交互に並ぶ低圧搾部18と高圧搾部19とのうちの高圧搾部19では、表面シート2と芯材4とが厚さ方向へ局部的に強く圧搾され、高圧搾部19の芯材4が高圧搾部19の周囲の芯材4に比べて高密度化している。 In the high compression portion 19 of the longitudinal direction A with low compression portion 18 alternating with high compression portion 19 in the longitudinal compression grooves 11, and the topsheet 2 and the core 4 are locally strongly compressed in the thickness direction , the core 4 of the high compression portion 19 is densified as compared to the core material 4 around the high compression portion 19. その芯材4はまた、ティシューペーパ7aと7bとに強固に密着している場合がある。 Also the core 4 may have firmly adhered to the Tissue paper 7a and 7b. 高圧搾部19はほぼ一様な厚さを有し、縦方向Aと横方向Bとにほぼ水平に広がるように形成されている。 The high compression portion 19 has a substantially uniform thickness, in the longitudinal direction A and lateral direction B are formed so as to extend substantially horizontally. 低圧搾部18は、表面シート2と芯材4とが高圧搾部19に比べて軽度に圧搾されていて、厚さ方向Cの上方に頂部21を有し、縦方向Aにおける頂部21の両側に傾斜部20a,20bを有している。 Low compression portion 18, and the topsheet 2 and the core 4 have been squeezed lightly in comparison with the high compression portion 19, it has a top portion 21 upwardly in the thickness direction C, on both sides of the top 21 in the longitudinal direction A inclined portion 20a, and a 20b in. 傾斜部20a,20bは表面シート2によって形成される傾斜面22,23を有し、その傾斜面22,23は頂部21から縦方向Aにおいて低圧搾部18に隣接している高圧搾部19のそれぞれにまで滑らかな下り勾配で、より好ましくは滑らかにしてほぼ一様な下り勾配で延びている。 Inclined portion 20a, 20b has an inclined surface 22, 23 formed by the topsheet 2, the inclined surfaces 22 and 23 of the high compression portion 19 adjacent to the low compression portion 18 in the longitudinal direction A from the top 21 smooth downward slope to each extend in a substantially uniform downward slope more preferably smooth. 低圧搾部18においては、芯材4が頂部21から高圧搾部19に向かって、換言すると傾斜面22,23を下るにしたがって次第に密度が高くなるように圧搾されている。 In low compression portion 18 is compressed gradually as the density increases as the core material 4 is toward the high compression portion 19 from the top 21, down the inclined surfaces 22 and 23 with other words. ティシューペーパ7aは、集合体6を覆う部分のうちで縦圧搾溝11と横圧搾溝12とを除く部分において、表面シート2に対して接合している場合と接合していない場合とがある。 Tissue paper 7a, there are a case where the portion except the longitudinal compression grooves 11 and the transverse compression grooves 12 among the portion covering the aggregate 6, not bonded to the case where bonded to the surface sheet 2. ティシューペーパ7bも、それが集合体6を覆う部分において裏面シート3に対して接合している場合と接合していない場合とがある。 Tissue paper 7b also, there is a case where it is not joined to the case being bonded to the backsheet 3 in the portion covering the aggregate 6. ティシューペーパ7aと表面シート2との接合やティシューペーパ7bと裏面シート3との接合には、表面シート2や裏面シート3に間欠的に塗布されたホットメルト接着剤を使用することができる。 The bonding between the bonding and Tissue paper 7b and the backsheet 3 and Tissue paper 7a and the topsheet 2, it is possible to use a hot melt adhesive is intermittently applied on the topsheet 2 and the backsheet 3.

縦圧搾溝11は、低圧搾部18を形成するための凸部と高圧搾部19を形成するための凹部とを有する金型で生理用ナプキンの所要部位を押圧することによって得ることができる。 Vertical compression grooves 11 may be obtained by pressing the required site of the sanitary napkin in a mold having a recess for forming the convex portion and the high compression portion 19 for forming a low compression portion 18. 生理用ナプキンを圧搾するときには、金型や生理用ナプキンを適宜の温度にまで加熱したり、生理用ナプキンに適宜の水分を含ませたりして、表面シートや粉砕パルプ、高吸水性ポリマー粒子等の構成材料の変形や伸長を容易にすることができる。 When squeezing the sanitary napkin, or by heating the mold, a sanitary napkin to an appropriate temperature, with or impregnated with appropriate moisture sanitary napkin, the topsheet and fluff pulp, superabsorbent polymer particles or the like deformation and elongation of the material can be facilitated in. 縦圧搾溝11において、低圧搾部18の縦方向Aの寸法はpであって、好ましくは2〜8mmの範囲にある。 In the longitudinal compression grooves 11, the dimension in the longitudinal direction A of the low compression portion 18 is a p, preferably in the range of 2 to 8 mm. 高圧搾部19の縦方向Aの寸法はqであり、横方向Bの寸法はrであって、好ましくは寸法qが1〜5mmの範囲にあり、寸法rが2〜5mmの範囲にある。 The dimensions of the longitudinal direction A of the high compression portion 19 is q, the lateral dimension B a r, preferably in the range dimension q is 1 to 5 mm, dimension r is in the range of 2 to 5 mm. 寸法qや寸法rが5mmよりも大きくなると、ナプキン1の側部において高圧搾部19の占める面積が大きくなって、ナプキン1を柔軟性の乏しいものにする傾向が強くなる。 When the dimension q and dimension r is greater than 5 mm, it increases the area occupied by the high compression portion 19 at the sides of the napkin 1, tends to poor flexibility of the napkin 1 becomes stronger. また、寸法qが1mmよりも小さい場合や寸法rが2mmよりも小さいと、高圧搾部19を形成するために使用する金型の押圧部が鋭利な先端を持つものになるので、ナプキン1を圧搾する過程において表面シート2を破る可能性が高くなる。 Further, when the case and the dimensions r dimension q is less than 1mm is less than 2 mm, the pressing portion of the mold used to form the high compression portion 19 is one having a sharp tip, the napkin 1 It may break the surface sheet 2 in the process of squeezing increases.

縦圧搾溝11においてはまた、低圧搾部18の傾斜面22,23と水平線Hとが作る傾斜角度はαであって、好ましい低圧搾部18の傾斜角度αは20〜80度の範囲にある。 Also in longitudinal compression grooves 11, the inclination angle of the inclined surfaces 22 and 23 of the low compression portion 18 and the horizontal line H is made is a alpha, the inclination angle alpha of the preferred low compression portion 18 in the range of 20 to 80 degrees .

このように形成されているナプキン1では、表面シート2と芯材4とが表面シート2から裏面シート3に向かって圧搾されて縦圧搾溝11が形成されるときに、表面シート2は低圧搾部18の頂部21から高圧搾部19まで傾斜面22,23に沿って伸長割合が徐々に高くなるように伸長されるので、表面シート2が局部的に高い伸長割合で伸長されることによって破れるという問題の発生を回避することができる。 In napkin 1 are thus formed, when the topsheet 2 and the core 4 is compressed longitudinally compressed groove 11 is formed from the topsheet 2 toward the backsheet 3, the topsheet 2 low compression since elongation percentage along the inclined surfaces 22 and 23 from the top 21 of the section 18 to the high compression portion 19 is extended so as to gradually increase, broken by the topsheet 2 is stretched at a locally higher elongation percentage it is possible to avoid the occurrence of the problem. このナプキン1が着用されて、経血がナプキン1の横方向Bの中央部から縦圧搾溝11に向かって拡散したときに、低圧搾部18に進入した経血は、頂部21から高圧搾部19に向かって密度が次第に高くなる傾斜部20a,20bにおいて高圧搾部19に向かうように案内される。 The napkin 1 is worn, when the menstrual blood is diffused toward the longitudinal compression grooves 11 from the center of the horizontal direction B of the napkin 1, menstrual blood that has entered the low compression portion 18, the high compression portion from the top portion 21 inclined portion 20a which density is gradually increased toward the 19, is guided toward the high compression portion 19 at 20b. 高圧搾部19における吸水性材料の集合体6にはティシューペーパ7bが密着しており、そのティシューペーパ7bには集合体6よりも体液を拡散させる能力に優れているものが使用されている。 The assembly 6 of the water-absorbing material in the high compression portion 19 is in close contact Tissue paper 7b is being used which is excellent in the ability to diffuse the body fluids than assembly 6 in its Tissue paper 7b. それゆえ、高圧搾部19へ案内された経血は、集合体6と裏面シート3との間において拡散する傾向が強いので、低圧搾部18から進入してきた経血によって高圧搾部19における表面シート2を汚すということが少なくなる。 Thus, menstrual blood is guided to the high compression portion 19, since a strong tendency to diffuse between the aggregate 6 and the backsheet 3, the surface of the high compression portion 19 by menstrual blood having entered the low compression portion 18 it is less that the contamination of the sheet 2. そのようなナプキン1は、経血の量にもよるが、縦圧搾溝11へ進入した経血で肌を汚すということが少なくなる。 Such napkin 1, depending on the amount of menstrual blood, that contaminate the skin through blood enters the longitudinal compression grooves 11 is reduced.

図4は、ナプキン1の部分破断斜視図であって、縦圧搾溝11とその周囲とが示されている。 Figure 4 is a partially cutaway perspective view of the napkin 1, the vertical compression grooves 11 and its surroundings are shown. 縦圧搾溝11において、側壁17aの水平線Hに対する傾斜角度はβであり、側壁17bの水平線Hに対する傾斜角度はγであって、好ましい縦圧搾溝11における傾斜角度β,γは30度以上、90度未満の範囲にある。 In the longitudinal compression grooves 11, the inclination angle with respect to the horizontal line H of the side wall 17a is beta, the angle of inclination with respect to the horizontal line H of the side wall 17b a gamma inclination angle beta in preferred longitudinal compression grooves 11, gamma is 30 degrees or more, 90 It is in the range of less than degree. 傾斜角度βがこのような範囲にあると、ナプキン1に厚さ方向Cの圧力が作用しても、縦圧搾溝11は周囲の吸水性材料によって塞がれることが少なくなる。 If the inclination angle β is in this range, even if pressure acts in the thickness direction C in the napkin 1, the vertical compression grooves 11 is reduced to be closed by the water-absorbing material around. 傾斜角度β,γが30度未満である場合には、縦圧搾溝11の幅が広すぎるとか、深さが浅すぎるという問題を生じやすい。 The inclination angle beta, when γ is less than 30 degrees, Toka width of the longitudinal compression grooves 11 is too large, prone to a problem that the depth is too shallow. また、傾斜角度β,γが90度以上であると、ナプキン1に縦圧搾溝11を作るときに、表面シート2が破れやすいということやナプキン1に作用する体圧の影響で縦圧搾溝11が閉じたものになりやすいということがある。 The inclination angle beta, the γ is 90 degrees or more, when making longitudinal compression grooves 11 in the napkin 1, the vertical compression under the influence of body pressure acting on the or the napkin 1 that the topsheet 2 is easily broken groove 11 there is a fact that tends to be what is closed.

図示例において、縦圧搾溝11における低圧搾部18と高圧搾部19とのそれぞれは、横方向Bと平行になるように延びているが、この発明において、縦圧搾溝11の低圧搾部18と高圧搾部19とのそれぞれは横方向Bに対して傾斜して、換言すると縦方向Aと交差するように延びていてもよいものである。 In the illustrated example, each of the low compression portion 18 in the vertical compression grooves 11 and the high compression portion 19, but extend in parallel to the lateral direction B, in the present invention, low compression portion 18 of the longitudinal compression grooves 11 each of the high compression portion 19 and inclined with respect to the transverse direction B, and those which may extend so as to intersect in other words the longitudinal direction a.

また、図1においてナプキン1に形成されている横圧搾溝12は、図2に例示の低圧搾部18と高圧搾部19とが縦方向Aへ延びるものであって、横方向Bにおいて交互に並んでいるものであることを除くと、縦圧搾溝11と同様に形成されているということのできるものである。 The horizontal compression grooves 12 formed in the napkin 1 in Fig 1 is intended to 2 extends as illustrative of low compression portion 18 to the high compression portion 19 Togatate direction A, alternately in the transverse direction B except that those are arranged, it is those which may be referred to as longitudinal compression groove 11 are formed in the same manner. ただし、この発明は、横圧搾溝12が形成されていない体液吸収性物品で実施することもできる。 However, the invention can also be carried out in body fluid absorbent article lateral compression grooves 12 are not formed.

生理用ナプキンの部分破断平面図。 Partially cutaway plan view of a sanitary napkin. 図1の部分拡大図。 Partially enlarged view of FIG. 1. 図2のIII−III線断面図。 Sectional view taken along line III-III in FIG. 2. 生理用ナプキンの部分斜視図。 Partial perspective view of a sanitary napkin.

符号の説明 DESCRIPTION OF SYMBOLS

1 体液吸収性物品(生理用ナプキン) 1 body fluid absorbent article (sanitary napkin)
2 表面シート 3 裏面シート 4 芯材 7b ティシューペーパ 11 圧搾溝(縦圧搾溝) 2 topsheet 3 backsheet 4 core 7b Tissue paper 11 compression grooves (longitudinal compression groove)
18 低圧搾部 19 高圧搾部 20a,20b 傾斜部 21 頂部 22 傾斜面 23 傾斜面 A 縦方向 B 横方向 C 厚さ方向 18 low compression portion 19 the high compression portion 20a, 20b inclined portion 21 top 22 inclined surface 23 inclined surface A longitudinal B transverse direction C thickness direction

Claims (4)

  1. 互いに直交する縦方向と横方向と厚さ方向とを有し、透液性表面シートと不透液性裏面シートとの間に体液吸収性の芯材が介在し、前記横方向の両側には前記表面シートと前記芯材とが前記表面シートから前記裏面シートへ向かう方向に圧搾されて前記縦方向へ延びる溝が形成され、前記溝の底部には、前記底部のうちで前記芯材の厚さが最も薄くなっている高圧搾部と、前記芯材の厚さが前記高圧搾部よりも厚くなっている低圧搾部とが前記縦方向に交互に形成されている体液吸収性物品であって、 And a vertical and horizontal direction and a thickness direction which are orthogonal to each other, the body fluid absorbent core is interposed between the liquid-permeable topsheet and liquid-impermeable back sheet, on both sides of the lateral the topsheet and the groove and the core member extends is squeezed in the direction toward the back sheet from the surface sheet to the longitudinal direction are formed on the bottom of the groove, the thickness of the core material within the said bottom there is a high compression portion which is thinnest, a thickness of a body fluid absorbent article and a low compression portions which are thicker than the high compression portions are alternately formed in the longitudinal direction of the core material of Te,
    前記溝の底部では、前記低圧搾部が前記厚さ方向の上方に頂部を有し、前記縦方向において前記頂部と前記低圧搾部に隣接する前記高圧搾部とが滑らかな下り勾配を有する傾斜面でつながり、前記芯材の密度が前記頂部から前記高圧搾部に向かって次第に高くなっていることを特徴とする前記体液吸収性物品。 At the bottom of the groove, the low compression portion having a top portion above the thickness direction, gradient and the high compression portion adjacent to the low compression portion and the top portion in the longitudinal direction has a smooth descending slope connection in terms, the body fluid absorbent article density of the core material, characterized in that it gradually increases toward the high compression portions from the top.
  2. 前記体液吸収性物品を水平面に置いたときに、前記傾斜面と前記水平面との角度が20〜80°の範囲にある請求項1記載の体液吸収性物品。 The body fluid absorbent article when placed on a horizontal plane, the body fluid absorbent article according to claim 1, wherein the angle between the inclined surface and the horizontal plane is in the range of 20 to 80 °.
  3. 前記高圧搾部は、前記縦方向の寸法が1〜5mm、前記横方向の寸法が2〜5mmの範囲にあり、前記低圧搾部は、前記縦方向の寸法が2〜8mmの範囲にあって前記横方向の寸法が2〜5mmの範囲にある請求項1または2記載の体液吸収性物品。 The high compression portion, said longitudinal dimension is 1 to 5 mm, the dimension of the lateral is in the range of 2 to 5 mm, the low compression portion, the dimensions of the longitudinal direction is in the range of 2~8mm claim 1 or 2 body fluid absorbent article according dimension of said lateral is in the range of 2 to 5 mm.
  4. 前記高圧搾部と前記裏面シートとの間には粉砕パルプを含むティシュペーパが介在し、前記ティシューペーパが前記高圧搾部に密着している請求項1〜3のいずれかに記載の体液吸収性物品。 Tissue paper comprising pulverized pulp between the backsheet and the high compression portion is interposed, the body fluid absorbent according to claim 1, wherein Tissue paper is in close contact with the high compression portions articles.
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US9060904B2 (en) 2007-06-18 2015-06-23 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
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US9072634B2 (en) 2007-06-18 2015-07-07 The Procter & Gamble Company Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
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US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
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US9974699B2 (en) 2011-06-10 2018-05-22 The Procter & Gamble Company Absorbent core for disposable absorbent articles
US9987176B2 (en) 2013-08-27 2018-06-05 The Procter & Gamble Company Absorbent articles with channels
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US9241845B2 (en) 2007-06-18 2016-01-26 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9060904B2 (en) 2007-06-18 2015-06-23 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9072634B2 (en) 2007-06-18 2015-07-07 The Procter & Gamble Company Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method
US9326896B2 (en) 2008-04-29 2016-05-03 The Procter & Gamble Company Process for making an absorbent core with strain resistant core cover
US9340363B2 (en) 2009-12-02 2016-05-17 The Procter & Gamble Company Apparatus and method for transferring particulate material
US10004647B2 (en) 2009-12-02 2018-06-26 The Procter & Gamble Company Apparatus and method for transferring particulate material
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US9974699B2 (en) 2011-06-10 2018-05-22 The Procter & Gamble Company Absorbent core for disposable absorbent articles
US9173784B2 (en) 2011-06-10 2015-11-03 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9066838B2 (en) 2011-06-10 2015-06-30 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9468566B2 (en) 2011-06-10 2016-10-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US9492328B2 (en) 2011-06-10 2016-11-15 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9649232B2 (en) 2011-06-10 2017-05-16 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9532910B2 (en) 2012-11-13 2017-01-03 The Procter & Gamble Company Absorbent articles with channels and signals
US8979815B2 (en) 2012-12-10 2015-03-17 The Procter & Gamble Company Absorbent articles with channels
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US9375358B2 (en) 2012-12-10 2016-06-28 The Procter & Gamble Company Absorbent article with high absorbent material content
US10022280B2 (en) 2012-12-10 2018-07-17 The Procter & Gamble Company Absorbent article with high absorbent material content
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
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US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator

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