JPWO2010004894A1 - 吸水シート組成物 - Google Patents
吸水シート組成物 Download PDFInfo
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
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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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
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- A—HUMAN NECESSITIES
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- 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
- A61F13/53—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 absorbing medium
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- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- A61F13/53—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 absorbing medium
- A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2262/04—Cellulosic plastic fibres, e.g. rayon
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/728—Hydrophilic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/14—Velocity, e.g. feed speeds
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
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Abstract
Description
〔1〕吸水性樹脂及びホットメルト接着剤が、2枚以上の親水性不織布により挟持された構造を有する吸水シート組成物であって、前記親水性不織布の目付量が25g/m2以上、前記吸水性樹脂の含有量が200〜400g/m2、前記ホットメルト接着剤の含有量が、吸水性樹脂の含有量(質量基準)の0.10〜0.50倍である、吸水シート組成物;並びに
〔2〕前記〔1〕に記載の吸水シート組成物を、液体透過性シート及び液体不透過性シートで狭持してなる、吸収性物品に関する。
吸水性樹脂2.0gを、綿袋(メンブロード60番、横100mm×縦200mm)中に計り取り、500mL容のビーカーに入れた。綿袋に生理食塩水(0.9質量%塩化ナトリウム水溶液、以下同様)500gを一度に注ぎ込み、吸水性樹脂のママコが発生しないように生理食塩水を分散させた。綿袋の上部を輪ゴムで縛り、1時間放置して、吸水性樹脂を十分に膨潤させた。遠心力が167Gとなるよう設定した脱水機(国産遠心機株式会社製、品番:H-122)を用いて綿袋を1分間脱水し、脱水後の膨潤ゲルを含んだ綿袋の質量Wa(g)を測定した。吸水性樹脂を添加せずに同様の操作を行い、綿袋の湿潤時空質量Wb(g)を測定し、次式により吸水性樹脂の生理食塩水保水能を求めた。
吸水性樹脂の生理食塩水保水能(g/g)=[Wa−Wb](g)/吸水性樹脂の質量(g)
吸水性樹脂の4.14kPa荷重下での生理食塩水吸水能は、図1に機略構成を示した測定装置Xを用いて測定した。
吸水性樹脂の4.14kPa荷重下での生理食塩水吸水能(mL/g)=Wc(mL)÷0.10(g)
本試験は、25℃±1℃に調節された室内で行なった。100mL容のビーカーに、生理食塩水50±0.1gを量りとり、マグネチックスターラーバー(8mmφ×30mmのリング無し)を投入し、ビーカーを恒温水槽に浸漬して、液温を25±0.2℃に調節した。次に、マグネチックスターラー上にビーカーを置いて、回転数600r/minとして、生理食塩水に渦を発生させた後、吸水性樹脂2.0±0.002gを、前記ビーカーに素早く添加し、ストップウォッチを用いて、吸水性樹脂の添加後から液面の渦が収束する時点までの時間(秒)を測定し、吸水性樹脂の吸水速度とした。
吸水性樹脂100gに、滑剤として、0.5gの非晶質シリカ(デグサジャパン(株)、Sipernat 200)を混合した。
(B)JIS標準篩を上から、目開き850μmの篩、目開き600μmの篩、目開き500μmの篩、目開き425μmの篩、目開き300μmの篩、目開き250μmの篩、目開き150μmの篩及び受け皿の順に組み合わせた。
吸水シート組成物を、7cm四方の正方形に切断したものをサンプルとし、質量Wdを測定した。
500mL容のビーカーに生理食塩水500gを入れ、これに吸水シート組成物のサンプルを添加して1時間静置した。目開き75μmのJIS標準篩いの質量We(g)をあらかじめ測定しておき、これを用いて、前記ビーカーの内容物をろ過し、篩いを水平に対して約30度の傾斜角となるように傾けた状態で、30分間放置することにより余剰の水分をろ別した。サンプルの入った篩いの質量Wf(g)を測定し、以下の式により、吸水シート組成物の生理食塩水吸水能を算出した。
吸水シート組成物の生理食塩水吸水能(g/m2)=[Wf−We−Wd](g)/0.0049(m2)
吸水シート組成物を10×30cmの短冊状に切断したものを、サンプルとして使用した。
逆戻り量(g)=Wh−Wg
その後、試験液の拡散長D(cm)を測定した(図4)。
目付量60g/m2のレーヨン繊維とポリエチレンテレフタレート繊維の混合体(レーヨン繊維/ポリエチレンテレフタレート繊維=65/35(質量比))からなる親水性不織布(逆側)の上に、ポリアクリル酸部分中和物(中和度:75モル%)からなる高吸水性樹脂「アクアキープSA55SX II」(住友精化(株)社製、生理食塩水保水能:35g/g、4.14kPa荷重下での生理食塩水吸水能:24mL/g、生理食塩水吸水速度:42秒、質量平均粒径:370μm)とホットメルト接着剤としてエチレン−酢酸ビニル共重合体(溶融温度95℃)とをそれぞれの量がシート面積に対して表1に示す含有量となるように均一に混合した粉末を、均一に散布した。上部から、目付量60g/m2のレーヨン繊維とポリエチレンテレフタレート繊維の混合体(レーヨン繊維/ポリエチレンテレフタレート繊維=65/35(質量比))からなる親水性不織布(順側)を載せた後、加熱圧着によりシート化して、吸水シート組成物を得た。
実施例1において、吸水性樹脂とホットメルト接着剤を散布する不織布(逆側)として、親水性不織布の代わりに、疎水性不織布(目付量40g/m2の疎水性ポリエチレンテレフタレート(100%))を使用した以外は、実施例1と同じ方法でシート化し、吸水シート組成物を得た。
1 ビュレット部
10 ビュレット
11 空気導入管
12 コック
13 コック
14 ゴム栓
2 導管
3 測定台
4 測定部
40 円筒
41 ナイロンメッシュ
42 重り
5 吸水性樹脂
6 円筒型シリンダー
7 試験液
8 重り
9 濾紙
A サンプル(吸水シート組成物)
B 液体透過性シート
C 液体不透過性シート
D 拡散長
Claims (7)
- 吸水性樹脂及びホットメルト接着剤が、2枚以上の親水性不織布により挟持された構造を有する吸水シート組成物であって、前記親水性不織布の目付量が25g/m2以上、前記吸水性樹脂の含有量が200〜400g/m2、前記ホットメルト接着剤の含有量が、吸水性樹脂の含有量(質量基準)の0.10〜0.50倍である、吸水シート組成物。
- 親水性不織布が、レーヨン繊維、ポリオレフィン繊維、ポリエステル繊維及びそれらの混合体からなる群より選ばれた少なくとも1種である、請求項1記載の吸水シート組成物。
- 吸水性樹脂の生理食塩水保水能が、25g/g以上である、請求項1又は2記載の吸水シート組成物。
- ホットメルト接着剤が、エチレン−酢酸ビニル共重合体接着剤及びスチレン系エラストマー接着剤より選ばれた少なくとも1種である、請求項1〜3いずれか記載の吸水シート組成物。
- 吸水シート組成物の厚みが、乾燥状態で5mm以下である、請求項1〜4いずれか記載の吸水シート組成物。
- 吸水シート組成物の生理食塩水吸水量が、2000g/m2以上である、請求項1〜5いずれか記載の吸水シート組成物。
- 請求項1〜6のいずれか1項に記載の吸水シート組成物を、液体透過性シート及び液体不透過性シートで狭持してなる、吸収性物品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2008182028 | 2008-07-11 | ||
JP2008182028 | 2008-07-11 | ||
PCT/JP2009/061812 WO2010004894A1 (ja) | 2008-07-11 | 2009-06-29 | 吸水シート組成物 |
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JPWO2010004894A1 true JPWO2010004894A1 (ja) | 2012-01-05 |
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JP2010519736A Pending JPWO2010004894A1 (ja) | 2008-07-11 | 2009-06-29 | 吸水シート組成物 |
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US (1) | US20110151228A1 (ja) |
EP (1) | EP2314264B1 (ja) |
JP (1) | JPWO2010004894A1 (ja) |
KR (1) | KR101537136B1 (ja) |
CN (1) | CN102088944A (ja) |
AU (1) | AU2009269278C1 (ja) |
DK (1) | DK2314264T3 (ja) |
ES (1) | ES2527139T3 (ja) |
PL (1) | PL2314264T3 (ja) |
WO (1) | WO2010004894A1 (ja) |
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- 2009-06-29 PL PL09794340T patent/PL2314264T3/pl unknown
- 2009-06-29 DK DK09794340T patent/DK2314264T3/da active
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Also Published As
Publication number | Publication date |
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KR101537136B1 (ko) | 2015-07-15 |
EP2314264A1 (en) | 2011-04-27 |
ES2527139T3 (es) | 2015-01-21 |
US20110151228A1 (en) | 2011-06-23 |
WO2010004894A1 (ja) | 2010-01-14 |
AU2009269278C1 (en) | 2015-08-27 |
KR20110038128A (ko) | 2011-04-13 |
PL2314264T3 (pl) | 2015-03-31 |
DK2314264T3 (da) | 2014-10-27 |
CN102088944A (zh) | 2011-06-08 |
AU2009269278B2 (en) | 2015-04-09 |
EP2314264A4 (en) | 2013-05-08 |
EP2314264B1 (en) | 2014-10-08 |
AU2009269278A1 (en) | 2010-01-14 |
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