JPWO2018047897A1 - 失禁用吸収性物品 - Google Patents
失禁用吸収性物品 Download PDFInfo
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- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
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Abstract
Description
前記失禁用吸収性物品は、尿量20cc以上を吸収する中量用以上の失禁用吸収性物品であり、
前記表面シートは、綿繊維100重量%からなるスパンレース不織布に撥水剤が塗布されてなるとともに、排泄口対応部分を含む領域に、表裏を貫通する多数の開孔が形成され、以下の拡散性試験による液の拡散面積が2000mm2以下であることを特徴とする失禁用吸収性物品が提供される。
<拡散性試験>
(1)100mm×100mmにカットした定性濾紙を2枚重ね、その上に幅80mm×長さ100mmにカットした表面シート試料を置く。
(2)青色に染色した水道水1mlをピペットで前記表面シート試料の表面からの高さが5mmの位置から滴下する。
(3)5分放置後の前記表面シート試料に拡がった青色染色部分の拡散面積を測定する。
(4)3回測定し、その平均値を算出する。
本発明に係る失禁パッド1は、図1〜図3に示されるように、ポリエチレンシートなどからなる不透液性裏面シート2と、肌当接面をなし、尿などを速やかに透過させる表面シート3と、これら両シート2、3間に介装された綿状パルプまたは合成パルプなどからなる吸収体4と、吸収体4の略側縁部を起立基端とし、かつ少なくとも着用者の排尿口部Hを含むように前後方向に所定の区間内において肌側に突出して設けられた左右一対の立体ギャザーBS、BSとから主に構成され、かつ吸収体4の周囲においては、その上下端縁部では不透液性裏面シート2と表面シート3との外縁部がホットメルトなどの接着剤やヒートシール等の接着手段によって接合され、またその両側縁部では吸収体4よりも側方に延出している不透液性裏面シート2と、立体ギャザーBSを形成しているサイド不織布7とがホットメルトなどの接着剤やヒートシール等の接着手段によって接合されている。図示例においては、吸収体4は、1層構造となっているが、中高部を形成する多層構造としてもよく、また、同一の大きさ、形状の吸収体を重ねた多層構造としてもよい。
前記表面シート3は、吸収体4の肌側を覆う部分である肌当接面を形成するものであり、綿繊維100重量%からなるスパンレース不織布で構成されるのが特徴である。スパンレース不織布は、接着剤を使用しない、柔軟性を有する等の利点を有する。
(1)100mm×100mmにカットした定性濾紙(ADVANTEC社製、型式:No.2)を2枚重ね、その上に幅80mm×長さ100mmにカットした表面シート試料を置く。なお、試料のシート幅は失禁パッド1の幅方向に一致し、シート長さは失禁パッド1の長さ方向に一致するものである。
(2)青色のインクや塗料などの染料によって青色に染色した水道水1mlを、ピペットで前記表面シート試料の表面からの高さ5mmの位置から滴下する。
(3)5分放置後の前記表面シート試料に拡がった青色染色部分の拡散面積を測定する。
(4)3回測定し、その平均値を算出する。
(1)前記表面シート試料と定規を一緒に写真撮影し、A3サイズの用紙にプリントアウトする。
(2)写真に撮影された定規の寸法から、青色染色部分の全部を含むように所定の大きさ(例えば100mm×100mm)に相当する寸法に用紙を切り取る(この切り取った所定寸法の用紙の重量をX+Yとする)。
(3)切り取った所定寸法の用紙から、青色染色部分を切り取る。
(4)切り取った青色染色部分の重量(X)と、残りの所定寸法の用紙の重量(Y)をそれぞれ測定する。
(5)次の計算式から拡散面積を算出する。
拡散面積=全体の面積(100mm×100mm)×青色染色部分の紙の重量(X)/所定寸法の紙の重量(X+Y)
上記の拡散面積測定方法は、特殊な装置やソフトウエアを用いることなく、簡単にかつ安価に測定できる利点がある。
前記吸収体4は、尿を吸収・保持し得るものであり、フラッフ状のパルプ繊維中に粉粒状の高吸水性ポリマーを分散混入したものが使用される。前記吸収体4は、パルプ繊維及び高吸水性ポリマーのみからなり、合成繊維が含まれていない。
本発明に係る失禁パッド1の表面シート3は、多数の開孔10を有する。前記開孔10から吸収体4を構成するパルプ、ポリマー、接着剤等が露出するのを防ぐため、表面シート3と吸収体4との間に中間シート6を配することが好ましい。前記中間シート6は、吸収体4からの逆戻り防止、クッション様効果により着用時の肌触りを柔らかくする効果も有する。
本発明は、表面シートとして、撥水処理を行った綿繊維100%スパンレース不織布であって、多数の開孔が形成されたものを用いた失禁パッドである。先ずは本発明の構成がもたらす効果の官能評価を行い、その効果を実証する。評価は、モニター20名の女性を対象に各商品を装着してもらい、とても良い:◎、良い:○、普通:△、悪い:×の4段階で評価してもらった。
試験2では、吸収体に関して、パルプ繊維量、ポリマー量及びこれらの比率を各々変化させたケースについて、官能評価を行い、その効果を実証する。評価は、モニター20名の女性を対象に各商品を装着してもらい、良い:○、悪い:×の2段階で評価してもらった。
試験3では、表面シートに関して、開孔1個当たりの面積、開孔寸法比、開孔の形成領域(縦・横)、開孔率(%)を各々変化させたケースについて、官能評価を行い、その効果を実証する。評価は、ラボ評価(試験室評価)と、実使用評価の2種類とした。なお、ラボ評価:人工尿を排尿口付近に80cc注入し、5分後に手で吸収物品の表面を触り、とても良い◎、良い:○、普通:△、悪い:×の4段階で評価した。また、実使用評価:モニター20名の女性を対象に各商品を装着してもらい、とても良い◎、良い:○、普通:△、悪い:×の4段階で評価してもらった。「人工尿」は、尿素:2wt%、塩化ナトリウム:0.8wt%、塩化カルシウム二水和物:0.03wt%、硫酸マグネシウム七水和物:0.08wt%、及びイオン交換水:97.09wt%を混合したものであり、特に記載の無い限り、温度37度で使用される。
Claims (7)
- 表面シートと裏面シートとの間に吸収体が介在された失禁用吸収性物品において、
前記失禁用吸収性物品は、尿量20cc以上を吸収する中量用以上の失禁用吸収性物品であり、
前記表面シートは、綿繊維100重量%からなるスパンレース不織布に撥水剤が塗布されてなるとともに、排泄口対応部分を含む領域に、表裏を貫通する多数の開孔が形成され、以下の拡散性試験による液の拡散面積が2000mm2以下であることを特徴とする失禁用吸収性物品。
<拡散性試験>
(1)100mm×100mmにカットした定性濾紙を2枚重ね、その上に幅80mm×長さ100mmにカットした表面シート試料を置く。
(2)青色に染色した水道水1mlをピペットで前記表面シート試料の表面からの高さが5mmの位置から滴下する。
(3)5分放置後の前記表面シート試料に拡がった青色染色部分の拡散面積を測定する。
(4)3回測定し、その平均値を算出する。 - 前記撥水剤の塗布量は、綿繊維100重量部に対して、0.3重量部以上である請求項1記載の失禁用吸収性物品。
- 前記表面シートは、未脱脂の綿繊維からなる請求項1、2いずれかに記載の失禁用吸収性物品。
- 前記吸収体は、合成繊維を含まないパルプ繊維と高吸水性ポリマーとの比が、パルプ繊維:高吸水性ポリマー=0〜70重量%:100〜30重量%である請求項1〜3いずれかに記載の失禁用吸収性物品。
- 前記パルプ繊維の目付は0〜800g/m2、前記高吸水性ポリマーの目付は85〜800g/m2である請求項4記載の失禁用吸収性物品。
- 前記撥水剤にはステアリン酸アミドが含有されている請求項1〜5いずれかに記載の失禁用吸収性物品。
- 前記開孔は、失禁用吸収性物品の長手方向に吸収体長さの15%以上、失禁用吸収性物品の幅方向に吸収体幅の50%以上の領域に設けられている請求項1〜6いずれかに記載の失禁用吸収性物品。
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