JP2017217069A - 生理用吸収性物品 - Google Patents
生理用吸収性物品 Download PDFInfo
- Publication number
- JP2017217069A JP2017217069A JP2016111638A JP2016111638A JP2017217069A JP 2017217069 A JP2017217069 A JP 2017217069A JP 2016111638 A JP2016111638 A JP 2016111638A JP 2016111638 A JP2016111638 A JP 2016111638A JP 2017217069 A JP2017217069 A JP 2017217069A
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- JP
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- Prior art keywords
- sheet
- absorbent
- napkin
- quaternary ammonium
- slit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
流動電位 = (X+0.190※)×1000 ・・・ 式1
(※ 溶媒の生理食塩水に要した滴定量)
y=ax (A)
式中、aは0.66以上であることが好ましく、0.93以上であることが更に好ましく、1.96以上であることが一層好ましい。また、aは、4.56以下あることが好ましく、4.19以下であることが更に好ましく、3.5以下であることが一層好ましい。例えばaは、0.66以上4.56以下の数であることが好ましく、0.93以上4.19以下の数であることが更に好ましく、1.96以上3.5以下の数であることが一層好ましい。特に、カチオン性ポリマーの有機性値及び無機性値が上述の範囲内であることを条件として、該カチオン性ポリマーの有機性値及び無機性値が前記の式Aを満たす場合には、該カチオン性ポリマーがシアル酸結合体と相互作用しやすくなり、該カチオン性ポリマーが赤血球に更に一層吸着しやすくなる。
測定対象物である血球凝集剤含有シート80を水平な場所にシワや折れ曲がりがないように静置し、5cN/cm2の荷重下での厚みを測定する。本発明における厚みの測定には、厚み計 PEACOCK DIAL UPRIGHT GAUGES R5-C(OZAKI MFG.CO.LTD.製)を用いた。このとき、厚み計の先端部と測定対象物における測定部分との間に、平面視円形状又は正方形状のプレート(厚さ5mm程度のアクリル板)を配置して、荷重が5cN/cm2となるようにプレートの大きさを調整する。
走査型電子顕微鏡(SEM)に付随されるエネルギー分散型X線分析装置(EDX)を用い、予め、血球凝集剤含有シート80を構成する構成繊維及び血球凝集剤8、それぞれの元素分析を行う。次いで、血球凝集剤8が配されているか否か判断したい試料片をアルミ製の試料台にカーボン製の両面テープを用いて貼り付け、必要に応じて白金/バナジウムコーティングを行った後、SEM観察で拡大しながらEDX(元素分析装置)を用いて血球凝集剤8の元素の有無について確認を行う。測定は、15kV〜40kVの加速電圧で行う。
測定対象物である吸収性シート又は吸収体を水平な場所にシワや折れ曲がりがないように静置し、5cN/cm2の荷重下での厚みを測定する。本発明における厚みの測定には、厚み計 PEACOCK DIAL UPRIGHT GAUGES R5-C(OZAKI MFG.CO.LTD.製)を用いた。このとき、厚み計の先端部と測定対象物における測定部分との間に、平面視円形状又は正方形状のプレート(厚さ5mm程度のアクリル板)を配置して、荷重が5cN/cm2となるようにプレートの大きさを調整する。
また、中央スリット領域44S1には、スリット列が、縦方向Xに3列以上形成されていることが好ましく、4列以上がより好ましく、5列以上が更に好ましい。また、個々のスリット列に含まれる横方向Yに離間したスリット44の本数は、好ましくは2本以上であり、より好ましくは3本以上である。
スリット領域44Sの縦方向Xには、中央スリット領域44S1に含まれるスリット列に加えて、中央スリット領域44S1の縦方向Xの前後それぞれに、1列又は2以上のスリット列を有することが好ましい。
スリット44の開口幅は、ナプキン1から吸収体4を取り出し、取り出された吸収体4を水平に置き、キーエンス製デジタルマイクロスコープVHX−900により測定倍率を調整して拡大することで、開口幅を測定する。
スリット領域44Sにおける同一スリット列内におけるスリット44の間隔(幅方向間隔)D44は、好ましくは3mm以上、更に好ましくは7mm以上、また、好ましくは20mm以下、更に好ましくは15mm以下であり、また、好ましくは3mm以上20mm以下、更に好ましくは7mm以上15mm以下である。
血球凝集剤含有シート80は、ナプキン1の使用中における経血を素早く引き込む観点から、その坪量が、表面シート2の坪量よりも高いことが好ましく、具体的に、好ましくは10g/m2以上50g/m2以下であり、更に好ましくは15g/m2以上40g/m2以下である。
例えば、ナプキン1では、図4に示すように、血球凝集剤含有シート80の肌対向面上に、吸収性シートで形成された吸収体4の多層構造体の全体が配されているが、多層構造体が配されていればよく、例えば、図6に示すように、吸収性シートで形成された吸収体4の多層構造体の一部が配されていてもよい。図6に示す血球凝集剤含有シート80及び吸収体4は、血球凝集剤含有シート80が、多層構造体の吸収体4の内部に配されている。好適には、図6に示すように、血球凝集剤含有シート80の肌対向面上に、上側吸収性シート402a、中間吸収性シート402c及び下側吸収性シート402bからなる3層構造体の中央吸収性シート402が配され、それら全体が、本体吸収性シート401で包まれて形成されている。具体的には、血球凝集剤含有シート80の非肌対向面上に、3層構造体の中央吸収性シート402及び本体吸収性シート401を構成する表面側吸収性シート401aが配されており、吸収性シートで形成された吸収体4の4層構造体が配されている。尚、血球凝集剤含有シート80の非肌対向面上には、本体吸収性シート401を構成する裏面側吸収性シート401bが配されている。図6に示す血球凝集剤含有シート80及び吸収体4の多層構造体を備えるナプキン1によれば、上述した図4に示すナプキン1と同様の効果を奏することができる。
2 表面シート
3 裏面シート
4 吸収体
401 本体吸収性シート
401a 表面側吸収性シート
401b 裏面側吸収性シート
402 中央吸収性シート
402a 上側吸収性シート
402b 下側吸収性シート
402c 中間吸収性シート
41 高吸収性ポリマー
44 スリット
8 血球凝集剤
80 血球凝集剤含有シート
9 圧搾溝
91 第1横圧搾溝
92 縦圧搾溝
93 第2横圧搾溝
FT 繊維リッチ領域
PT ポリマーリッチ領域
Claims (4)
- パルプを含有する吸収体と、該吸収体を挟持する、着用者の肌対向面側に位置する表面シート及び裏面シートとを具備する生理用吸収性物品であって、
前記表面シートと前記裏面シートとの間に、血球凝集剤を含有する血球凝集剤含有シートを備え、
前記吸収体は、吸収性シートで形成されており、
前記血球凝集剤含有シートの肌対向面上に、前記吸収性シートで形成された多層構造体が配されている生理用吸収性物品。 - 前記多層構造体は、複数のスリットを有しており、
前記多層構造体を断面視して、各前記スリットで分断された該多層構造体の周縁部分では、該多層構造体の層間が非接合となっており、
前記多層構造体を平面視して、該多層構造体は、各前記スリットの配された各スリット部分と、該スリット部分以外の非スリット部分とに区分され、該スリット部分の繊維密度が、該非スリット部分の繊維密度よりも大きい請求項1に記載の生理用吸収性物品。 - 前記多層構造体は複数のスリットを有しており、
前記スリットは、前記表面シート側の開口幅が、前記裏面シート側の開口幅よりも小さい請求項1又は2に記載の生理用吸収性物品。 - 前記多層構造体には、前記多層構造体及び前記血球凝集剤含有シートを貫通するスリットを有している、請求項1〜3の何れか1項に記載の生理用吸収性物品。
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |