JP6418818B2 - 吸収性物品用の表面シート - Google Patents
吸収性物品用の表面シート Download PDFInfo
- Publication number
- JP6418818B2 JP6418818B2 JP2014135458A JP2014135458A JP6418818B2 JP 6418818 B2 JP6418818 B2 JP 6418818B2 JP 2014135458 A JP2014135458 A JP 2014135458A JP 2014135458 A JP2014135458 A JP 2014135458A JP 6418818 B2 JP6418818 B2 JP 6418818B2
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- gel
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- skin
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Images
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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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
-
- 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
-
- 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
-
- 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
-
- 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
- A61F2013/51002—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads with special fibres
- A61F2013/51004—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads with special fibres characterized by the length of the fibres
-
- 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F2013/51338—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having improved touch or feeling, e.g. smooth film
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Description
本発明の表面シートに用いられるゲル状組成物は、38℃でゲル状態を維持することができ、疎水性を有するものであれば特に制限されないが、例えば、スチレン系エラストマー及び炭化水素油を含む組成物などが挙げられ、中でも、スチレン系エラストマー、炭化水素油及びシリコーンオイルを含む組成物が好適に用いられる。中でも、前記ゲル状組成物は、重量平均分子量が10万以上18万未満であり、且つトリブロック以上のブロック共重合体からなるスチレン系熱可塑性エラストマー(A1)と、重量平均分子量が18万以上30万以下であり、且つトリブロック以上のブロック共重合体からなるスチレン系熱可塑性エラストマー(A2)とを、(A1)/(A2)=95/5〜50/50の質量比で含み、且つ分子量の分散度(Mw/Mn)が1.25〜1.60である、スチレン系熱可塑性エラストマー混合物(A)100質量部に対し、37.8℃における動粘度が5〜50mm2/sである炭化水素油(B)を500〜4800質量部と、25℃における動粘度が50〜200mm2/sであるシリコーンオイル(C)を20〜60質量部とを含有する組成物を、特に好ましく用いることができる。
装置 :GPC−8220 (東ソー(株)製)
カラム :SHODEX KF−804 (昭和電工(株)製)
温度 :40℃
溶媒 :THF
流量 :1.0mL/分
試料濃度:0.05〜0.6質量%
注入量 :0.1mL
検出 :RI(示差屈折計)
(1)ゲル状組成物が塗工された表面シートの測定対象となる所定範囲を、例えば、カッターの替え刃等の鋭利な刃物を用いて、その厚さを変化させないように切り出し、塗工量測定用のサンプルを得る。
(2)切り出したサンプルの面積:SA(m2)及び質量:SM0(g)を測定する。
(3)測定後のサンプルを、芳香族系溶媒(例えば、トルエン等)などのゲル状組成物が可溶な溶媒中に浸し、少なくとも3分間攪拌して、前記ゲル状組成物を溶媒中に溶出させる。
(4)予め質量を測定したろ紙を用いて前記溶媒中のサンプルをろ過した後、そのままろ紙上において、サンプルを溶媒で十分に洗浄する。洗浄後のサンプルをろ紙ごと100℃のオーブン内で十分に乾燥させる。
(5)乾燥後のろ紙及びサンプルの質量を測定し、その値から予め測定したろ紙の質量を差し引くことにより、乾燥後のサンプルの質量:SM1(g)を算出する。
(6)ゲル状組成物の塗工量GBS(g/m2)を、次式(1)により算出する。
本実施形態の表面シート2を構成する不織布としては、短繊維によって形成されたエアスルー不織布が用いられる。エアスルー不織布は、熱融着性複合繊維を含有するウェブに熱風を通過させ、熱融着性複合繊維の交点を熱融着させることにより得られた不織布である。熱融着性複合繊維を含有するウェブは、カード機等を使用した公知のウェブ形成方法によって形成することができる。ウェブ形成方法としては、例えば、短繊維を空気流に搬送させてネット上に堆積させる方法(エアレイ法)等が挙げられる。なお、このようにして形成されたウェブは、不織布化前の繊維集合体であり、不織布製造過程において加えられる処理(例えば、エアスルー法、カレンダー法等における加熱融着処理)が施されておらず、繊維同士が極めて緩く絡んでいる状態にある。熱融着性複合繊維を含有するウェブに対するエアスルー処理は、例えば、熱風吹き付け装置によって実施することができる。エアスルー処理では、所定温度(例えば120〜160℃)に加熱された熱風がウェブに対して吹き付けられ、熱風がウェブを通り抜けることにより、ウェブ中の熱融着性複合繊維の交点が熱融着される。このようなエアスルー処理によって製造された不織布としては、例えば、鞘成分が高密度ポリエチレンであり、芯成分がポリエチレンテレフタレートである複合繊維であって、繊維長が20〜80mm、好ましくは35〜65mmであり、繊度が1.1〜8.8dtex、好ましくは2.2〜5.6dtexである芯鞘型複合繊維を主体とした不織布が挙げられる。
3mmピッチの畝溝構造を有する不織布からなる表面シート上に、ポリスチレン−block−ポリ(エチレン−co−ブチレン)−block−ポリスチレン(SEBS)を5質量%と、ポリスチレン−block−ポリエチレン−block−ポリ(エチレン−co−プロピレン)−block−ポリスチレン(SEPS)を2質量%と、パールリーム6(日油株式会社製,流動イソパラフィン、イソブテン及びn-ブテンを共重合し、次いで水素を付加することにより生成された分岐鎖炭化水素、重合度:約5〜約10,重量平均分子量:約330)を90質量%と、シリコーンオイル(100cst)を3質量%とからなるゲル状組成物を、塗工幅2mm、塗工間隔2mmで塗工して、複数の線状塗工領域を有する表面シートサンプルを作製した。この作成した表面シートサンプルを、ユニ・チャーム株式会社から市販されているベービー用紙オムツ、ムーニー「エアフィット」Sサイズから表面シートを取り除いた部分に、ホットメルト接着剤を用いて貼り合わせて、実施例1の吸収性物品を作製した。
上述の表面シート上にゲル状組成物を塗工していないこと以外は、実施例1と同様にして比較例1の吸収性物品を作製した。
(1)サンプルの模擬尿滴下位置に印をつける。
(2)サンプルの重量及び模擬尿滴下位置の厚みを測定する。厚みの測定には厚み計(PEACOCK PIALTHICKNESS GAUGE,直径50mm)を使用する。
(3)サンプルを固定する。
(4)模擬尿滴下位置の上方10mmの位置にビュレットを固定する。
(5)一旦ビュレットを外し、模擬尿滴下位置の印が中央に位置するように、サンプル上に円筒(直径60mm,重さ200g)を設置する。
(6)ビュレットを模擬尿滴下位置(円筒の中央)に戻し、1回目の模擬尿滴下を開始する(T=0)。
(7)模擬尿70mLを滴下する。
(8)円筒内において、表面シートの表面から模擬尿が無くなるまで待つ。
(9)濾紙(アドバンテックNo.2,100mm×100mm)の重量(g)を測定し、これを「重量A(g)」とする。
(10)模擬尿滴下開始5分後(T=5分)に、重量測定済みの濾紙(アドバンテックNo.2,100mm×100mm)を、濾紙の中央と模擬尿滴下位置とが一致するようにサンプル上に設置し、その上に重り(3.5kg)を設置する。
(11)模擬尿滴下開始8分後(T=8分)(重りを設置してから3分後)、重りを外して、濾紙の重量(g)を測定し、これを「重量B(g)」とする。
(12)濾紙の重量の変化量(重量B(g)−重量A(g))を算出し、これを「第1リウェット量(g)」とする。
(13)1回目の模擬尿滴下開始から10分後(T=10分)に2回目の模擬尿滴下を開始する。
(14)模擬尿70mLを滴下する。
(15)上記(8)〜(12)と同様にして、円筒内において、表面シートの表面から模擬尿が無くなるまで待ち、濾紙の重量の変化量(g)を算出し、これを「第2リウェット量(g)」とする。
(16)2回目の模擬尿滴下開始から10分後(T=20分)に3回目の模擬尿滴下を開始する。
(17)模擬尿70mLを滴下する。
(18)上記(8)〜(12)と同様にして、円筒内において、表面シート表面から模擬尿が無くなるまで待ち、濾紙の重量の変化量(g)を算出し、これを「第3リウェット量(g)」とする。
(19)第1〜第3リウェット量の測定をそれぞれ5回繰り返し、それらの平均値を算出する。
2 表面シート
3 裏面シート
4 吸収体
41 吸収コア
42 コアラップシート
5 側部シート部材
6 塗工領域
7 非塗工領域
Claims (8)
- 吸収性物品用の表面シートであって、
前記表面シートは、短繊維によって形成された不織布と、38℃でゲル状態を維持することのできる疎水性のゲル状組成物とを含み、且つ、前記表面シートの肌面側の面に、前記ゲル状組成物が塗工された塗工領域と前記ゲル状組成物が塗工されていない非塗工領域とを有し、
前記塗工領域は、前記ゲル状組成物が前記不織布の短繊維間に形成される空隙部に少なくとも部分的に充填されて前記表面シートの肌面側の面に露出しており、
前記ゲル状組成物は、スチレン系エラストマー及び炭化水素油を含む組成物からなる、前記表面シート。 - 前記表面シートが、肌面側の面に、複数の凸部及び複数の凹部のうちの少なくとも一方を含む構造を有している、請求項1に記載の表面シート。
- 複数の凸部及び複数の凹部のうちの少なくとも一方を含む構造が、複数の畝部及び複数の溝部を含む畝溝構造であり、前記複数の畝部のうちの少なくとも一部の畝部に、前記ゲル状組成物が塗工されている、請求項2に記載の表面シート。
- 前記短繊維の繊維径が0.5dtex〜10.0dtexである、請求項1〜3のいずれか一項に記載の表面シート。
- 前記短繊維の繊維長が20mm〜80mmである、請求項1〜4のいずれか一項に記載の表面シート。
- 前記塗工領域が、前記表面シートの長手方向に平行に延びる複数の線状塗工領域であり、前記線状塗工領域の間隔が1mm〜10mmである、請求項1〜5のいずれか一項に記載の表面シート。
- 前記ゲル状組成物が、重量平均分子量が10万以上18万未満であり、且つトリブロック以上のブロック共重合体からなるスチレン系熱可塑性エラストマー(A1)と、重量平均分子量が18万以上30万以下であり、且つトリブロック以上のブロック共重合体からなるスチレン系熱可塑性エラストマー(A2)とを、(A1)/(A2)=95/5〜50/50の質量比で含み、且つ分子量の分散度(Mw/Mn)が1.25〜1.60である、スチレン系熱可塑性エラストマー混合物(A)100質量部に対し、37.8℃における動粘度が5〜50mm2/sである炭化水素油(B)を500〜4800質量部と、25℃における動粘度が50〜200mm2/sであるシリコーンオイル(C)を20〜60質量部とを含有する、請求項1〜6のいずれか一項に記載の表面シート。
- 請求項1〜7のいずれか一項に記載の表面シートを含む、吸収性物品。
Priority Applications (9)
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JP2014135458A JP6418818B2 (ja) | 2014-06-30 | 2014-06-30 | 吸収性物品用の表面シート |
CN201580036160.4A CN106470652A (zh) | 2014-06-30 | 2015-01-13 | 吸收性物品用的表面片材 |
AU2015285821A AU2015285821A1 (en) | 2014-06-30 | 2015-01-13 | Outer-surface sheet for absorbent article |
SG11201610064QA SG11201610064QA (en) | 2014-06-30 | 2015-01-13 | Outer-surface sheet for absorbent article |
KR1020167034423A KR102305170B1 (ko) | 2014-06-30 | 2015-01-13 | 흡수성 물품용의 표면 시트 |
PCT/JP2015/050661 WO2016002234A1 (ja) | 2014-06-30 | 2015-01-13 | 吸収性物品用の表面シート |
MYPI2016704835A MY183098A (en) | 2014-06-30 | 2015-01-13 | Outer-surface sheet for absorbent article |
TW104120941A TW201617049A (zh) | 2014-06-30 | 2015-06-29 | 吸收性物品用之表面層片 |
PH12016502465A PH12016502465A1 (en) | 2014-06-30 | 2016-12-12 | Outer-surface sheet for absorbent article |
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JPS5328088B2 (ja) | 1973-03-27 | 1978-08-12 | ||
EP1025865A1 (en) * | 1999-02-02 | 2000-08-09 | The Procter & Gamble Company | Disposable absorbent articles with improved adhesive for attachment to the skin to facilitate adhesion in oily conditions |
MY133783A (en) * | 1999-07-28 | 2007-11-30 | Dow Global Technologies Inc | Hydrogenated block polymers having elasticity and articles made therefrom |
JP3995388B2 (ja) * | 2000-04-21 | 2007-10-24 | 花王株式会社 | 吸収性物品 |
JP2002085451A (ja) * | 2000-05-10 | 2002-03-26 | Uni Charm Corp | 油性成分を含んだ層を有するシート、および前記シートを用いた製品 |
JP4208433B2 (ja) * | 2000-05-12 | 2009-01-14 | 花王株式会社 | 吸収性物品 |
US20060062816A1 (en) * | 2001-10-01 | 2006-03-23 | Gatto Joseph A | Sanitary napkins with hydrophobic lotions |
CN100588663C (zh) * | 2002-10-15 | 2010-02-10 | 埃克森美孚化学专利公司 | 用于烯烃聚合的多催化剂体系和由其生产的聚合物 |
KR100887428B1 (ko) * | 2004-06-21 | 2009-03-09 | 더 프록터 앤드 갬블 캄파니 | 로션 함유 톱시트를 구비한 흡수용품 |
DK2441420T3 (en) * | 2009-06-12 | 2015-01-26 | Sumitomo Seika Chemicals | water-absorbent sheet |
JP5909349B2 (ja) | 2010-12-20 | 2016-04-26 | 花王株式会社 | 吸収性物品 |
JP5843740B2 (ja) * | 2012-02-29 | 2016-01-13 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5998000B2 (ja) * | 2012-09-30 | 2016-09-28 | ユニ・チャーム株式会社 | 不織布及び吸収性物品 |
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2014
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SG11201610064QA (en) | 2016-12-29 |
JP2016013208A (ja) | 2016-01-28 |
MY183098A (en) | 2021-02-13 |
KR102305170B1 (ko) | 2021-09-28 |
TW201617049A (zh) | 2016-05-16 |
KR20170026355A (ko) | 2017-03-08 |
WO2016002234A1 (ja) | 2016-01-07 |
CN106470652A (zh) | 2017-03-01 |
AU2015285821A1 (en) | 2016-12-22 |
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