JP6227787B2 - キャリパが増大する伸展性オーゼティック構造体を含む吸収性物品 - Google Patents
キャリパが増大する伸展性オーゼティック構造体を含む吸収性物品 Download PDFInfo
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- JP6227787B2 JP6227787B2 JP2016540453A JP2016540453A JP6227787B2 JP 6227787 B2 JP6227787 B2 JP 6227787B2 JP 2016540453 A JP2016540453 A JP 2016540453A JP 2016540453 A JP2016540453 A JP 2016540453A JP 6227787 B2 JP6227787 B2 JP 6227787B2
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- 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
- B32B2555/00—Personal care
-
- 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
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
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- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Description
「吸収性物品」とは、身体の滲出物を吸収して収容する装置を指し、より具体的には、身体から排出される種々の滲出物を吸収して収容するために、着用者の身体に接して、又はその近傍に配置される装置を指す。吸収性物品としては、おむつ(乳幼児用おむつ及び成人失禁用おむつ)、パンツ、生理用ナプキン若しくはパンティーライナーなどの婦人用保護吸収性物品、胸当て、介護用マット、よだれ掛け、拭き取り布、並びに同様のものを挙げることができる。本明細書で使用する時、用語「滲出物」は、限定するものではないが、尿、血液、膣排泄物、母乳、汗及び糞便を含む。本発明の好ましい吸収性物品は使い捨て吸収性物品であり、より好ましくは、使い捨ておむつ及び使い捨てパンツである。
吸収性物品における多くの用途のために、最初は扁平であるが、縦寸法に沿って伸長されると、同時にキャリパ(即ち、厚さ)が増大する構造体を有することが非常に望ましいであろう。
リガメントは弾性、非弾性又は高非弾性であってもよい。また、リガメントは伸展性、非伸展性又は高非伸展性であってもよい。リガメントは、不織布、フィルム、紙、又はシート状発泡体、織布、編地、又はこれらの材料の組み合わせで作製されてもよい。これらの材料の組み合わせは、積層体、例えば、フィルムと不織布の積層体、であってもよい。
構造体(100)の縦寸法に沿った力を加えた時の、第1の層及び第2の層(110、120)の、互いに対する反対縦方向の最大変位を規定することが望ましい場合がある。これは、停止補助具(160、180、190)を提供することによって促進することができる。
a)第1の層及び第2の層(110、120)が、例えば、第1の層及び/又は第2の層(110、120)の横方向縁部(114、124)の一方の方向の、リガメント(130)が設けられている領域の縦方向外方にあってもよい、少なくとも1つの層対層付着領域(160)内で互いに付着される。この層対層付着領域(160)は、第1の層及び第2の層(110、120)の一方が少なくとも1つの所定の余裕部を有するように提供される。余裕部は、2つの隣り合ったリガメントの間にあってもよいか、又は代替的に、若しくはそれに加えて、層対層付着領域(160)と、層対層付着領域(160)に最も近接したリガメントのリガメント付着領域(135、136)との間にあってもよい。また、組み合わさって構造体の最大限可能な伸長を規定する、1つを超える所定の余裕部を提供することも可能である。余裕部は、構造体(100)がその初期の扁平構成になっている時に、一種のたるみ(170)を形成することができる。即ち、余裕部における第1の層及び/又は第2の層の縦寸法は、余裕部が設けられている区域内の構造体の縦寸法よりも大きい。このような停止補助具の一例が図1A、図1B、図2、図3及び図6に示される)。代替的に、余裕部は、余裕部が設けられるべき区域内の第1の層又は第2の層(110、120)の材料を、この区域内においてそれぞれの層の伸展性を創出するように適合させることによって、生み出すことができる。材料を適合させることは、材料を変更することによって行うことができ、例えば、余裕部を形成するためにself加工(selfing)すること(余裕部内におけるそれぞれの第1の層又は第2の層の材料を、それを比較的たやすく伸展可能にするために、弱化すること)、穴を作ること、又は伸展性材料を用いることによって行うことができる。代替的に、第1の層又は第2の層は、余裕部の区域内では、異なる材料で作製されてもよく、余裕部内の材料を伸展性にする。
層間停止補助具及び/又は層−リガメント間停止補助具は非弾性又は高非弾性であってもよい(余裕部が、材料を弾性的に伸展可能にするように材料を変更することによって設けられる場合には、余裕部を除く)。また、層間停止補助具及び/又は層−リガメント間停止補助具は非伸展性又は高非伸展性であってもよい(余裕部が、材料を伸展可能にするように材料を変更することによって設けられる場合には、余裕部を除く)。
本発明の構造体は吸収性物品における多種多様の用途を見いだすことができる。
引張強度
引張強度は、Zwick Roell GmbH &Co.KG,Ulm,ドイツから入手可能である、TestExpert 11.0ソフトウェアを利用する、コンピュータインタフェースを有する伸長引張試験機Zwick Roell Z2.5を用いて一定の速度で測定する。測定される力がセルの限度の10%〜90%以内であるロードセルを用いる。可動式(上部)空気圧つかみ具及び固定式(下部)空気圧つかみ具の双方に、試験片の幅よりも広いゴム張りの把持部を装着する。試験は全て、約23℃+2℃及び約45%±5%の相対湿度に維持された調整室内で行う。
引張強度=ピーク力(N)/試験片の幅(cm)
ロープ/糸状材料の場合:引張強度=ピーク力(N)
曲げ剛性は、Lorentzen & Wettre GmbH,Darmstadt,ドイツから市販されているLorentzen & Wettre曲げ抵抗試験機(Bending Resistance Tester、BRT)Model SE016機器を用いて測定する。材料(例えば、リガメント並びに第1の層及び第2の層)の剛性を、SCAN−P29:69に従い、DIN 53121(3.1「2点法」)による要求事項に対応して測定する。分析のために、規格において挙げられている38.1mm×50mmの試験片の代わりに、25.4mm×50mmの長方形試験片を用いた。したがって、曲げ力はmN単位で指定され、曲げ抵抗は、以下にある式に従って測定した。
平均測定キャリパは、Mitutoyo Absolute caliper device model ID−C1506、株式会社ミツトヨ、日本を用いて測定する。
構造体の弾性率は、コンピュータインタフェースを有する引張試験機(好適な機器は、Zwick Roell GmbH &Co.KG,Ulm,ドイツから入手可能な、TestExpert 11.0ソフトウェアを利用するZwick Roell Z2.5である)を用い、測定される力がセルの限度の10%〜90%以内であるロードセルを用いて、一定の構造体圧縮速度で測定する。プランジャプレート(500)をしっかりと締め付けるために、可動式上部固定式空気圧つかみ具にゴム張りの把持部を装着する。固定式下部つかみ具は、100mm×100mmの寸法を有するベースプレート(510)である。ベースプレート(510)の表面はプランジャプレート(500)と垂直である。プランジャプレート(500)を上部つかみ具に固定するために、上部つかみ具をベースプレート(510)の上面(515)の上方20mmまで下に下げる。上部つかみ具を閉じ、プランジャプレート(500)がしっかりと締められたことを確認する。プランジャプレート(500)は3.2mmの幅及び100mmの長さを有する。構造体と接触することになるプランジャプレート(500)の縁部(520)は、r=1.6mmの衝突縁部半径を有する曲面を有する。分析のために、ゲージ長を、直立構成における構造体のキャリパ(図11参照)よりも少なくとも10%高く設定する。クロスヘッド及びロードセルをゼロ点調整する。プランジャプレート(500)の幅は構造体の横断方向と平行でなければならない。
構造体実施例の作製:
各構造体のために、打ち抜き型又はかみそりナイフを用いて、150mmの縦寸法及び25mmの横寸法を有する不織布の2つの部片を切り出す。これらの不織布は構造体の第1の層及び第2の層になる予定である。打ち抜き型又はかみそりナイフを用いて、10mmの縦寸法(これは、最終的な構造体内において4mmの自由中間部分の縦寸法を生じさせることになり、その一方で、各横方向縁部上の3mmは第1の層及び第2の層にそれぞれ付着される)及び25mmの横寸法を有する4つのリガメント(実施例1、2、4及び5)、別に、6つのリガメント(実施例3)を切り出す。最終的な構造体内でリガメントの第1の横方向縁部になる予定の側縁部の近傍の各リガメントの第1の表面上に、3mmの長さ及び25mmの幅を有する両面テープ(例えば、3Mから入手できる3M両面医療テープ1524−3M(44g/m2))を貼り、最終的な構造体内でリガメントの第2の横方向縁部になる予定の側縁部の近傍の各リガメントの第2の表面上に、第2のテープを貼る。 テープの幅をリガメントの横寸法とそろえる。
Claims (16)
- 縦寸法、横寸法及びキャリパを有する構造体を含む使い捨て吸収性物品であって、前記縦寸法、前記横寸法及び前記キャリパは互いに垂直であり、前記構造体の前記縦寸法に沿った力を加えると、前記構造体は前記縦寸法に沿って伸長し、同時に、扁平構成から直立構成へ変形することができ、これによって、前記構造体は前記縦寸法及び前記横寸法と垂直な方向に直立され、前記直立構成は、前記扁平構成よりも高いキャリパを有し、前記構造体は非伸展性及び非弾性材料からなる、使い捨て吸収性物品。
- 前記構造体において、前記非伸展性及び非弾性材料は高非伸展性及び高非弾性である、請求項1に記載の使い捨て吸収性物品。
- 前記材料であって、それらから前記構造体がなる、前記材料が、フィルム、不織布、紙、シート状発泡体、織布、編地、及びこれらの組み合わせからなる群から選択される、請求項1又は2に記載の使い捨て吸収性物品。
- 前記構造体がその扁平構成において5mm未満のキャリパを有する、請求項1〜3のいずれか一項に記載の使い捨て吸収性物品。
- 前記構造体がその直立構成において少なくとも5mmのキャリパを有する、請求項1〜4のいずれか一項に記載の使い捨て吸収性物品。
- 前記直立構成の前記キャリパが50mm以下である、請求項1〜5のいずれか一項に記載の使い捨て吸収性物品。
- その直立構成における前記構造体の最大キャリパが、少なくとも2mmである、請求項1に記載の使い捨て吸収性物品。
- 前記構造体がその直立構成において0.01MPa〜0.3MPa(0.01N/mm2〜0.3N/mm2)の弾性率を有する、請求項1〜7のいずれか一項に記載の使い捨て吸収性物品。
- 前記材料であって、それらから前記構造体がなる、前記材料が、500mNm未満の曲げ剛性を有する、請求項1〜8のいずれか一項に記載の使い捨て吸収性物品。
- 前記材料であって、それらから前記構造体がなる、前記材料が、80N/cm未満の引張強度を有する、請求項1〜9のいずれか一項に記載の使い捨て吸収性物品。
- 前記直立構成が、前記縦寸法に沿って加えられた前記力の解放時に、実質的に完全にその扁平構成に戻る、請求項1〜10のいずれか一項に記載の使い捨て吸収性物品。
- 前記構造体が、前記構造体の前記縦寸法に沿った力を加えたときの前記構造体の最大縦方向伸展を規定する停止補助具を含む、請求項1〜11のいずれか一項に記載の使い捨て吸収性物品。
- 前記構造体が少なくとも3つの材料層を含む、請求項1〜12のいずれか一項に記載の使い捨て吸収性物品。
- 前記吸収性物品が、おむつ、パンツ及び生理用ナプキンからなる群から選択され、前記構造体が、前側腰部構造、後側腰部構造、ランディング区域、1つ又は2つの前側耳部、1つ又は2つの後側耳部のうちの1つ以上に含まれる、請求項1〜13のいずれか一項のいずれか一項に記載の吸収性物品。
- 前記構造体の前記縦寸法が前記吸収性物品の横方向中心線と実質的に平行であり、前記構造体の前記横寸法が前記吸収性物品の縦方向中心線と実質的に平行である、請求項14に記載の吸収性物品。
- 前記構造体の横方向の縁部又はその近傍における第1の層及び第2の層の区域が前記吸収性物品に付着される、請求項1〜15のいずれか一項に記載の吸収性物品。
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US201314022269A | 2013-09-10 | 2013-09-10 | |
US14/022,269 | 2013-09-10 | ||
PCT/US2014/054484 WO2015038457A1 (en) | 2013-09-10 | 2014-09-08 | Absorbent articles comprising extensible auxetic structures which increase in caliper |
Publications (2)
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JP2016533843A JP2016533843A (ja) | 2016-11-04 |
JP6227787B2 true JP6227787B2 (ja) | 2017-11-08 |
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US (1) | US20150073369A1 (ja) |
EP (1) | EP3043760A1 (ja) |
JP (1) | JP6227787B2 (ja) |
CN (1) | CN105473112A (ja) |
WO (1) | WO2015038457A1 (ja) |
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CN105530897A (zh) * | 2013-09-10 | 2016-04-27 | 宝洁公司 | 孔室成形结构 |
EP2995289A1 (en) * | 2014-09-10 | 2016-03-16 | The Procter and Gamble Company | Multi-level cell forming structures and their use in disposable consumer products |
CN106801296B (zh) * | 2017-03-06 | 2019-02-26 | 东华大学 | 一种可调尺度与形状记忆的柔性拉胀面料及其制造方法 |
KR102447724B1 (ko) * | 2021-12-31 | 2022-09-27 | 한국과학기술연구원 | 신축 균일도가 향상된 신축성 기판 및 그 제조 방법 |
KR102447725B1 (ko) * | 2021-12-31 | 2022-09-27 | 한국과학기술연구원 | 신축 균일도가 향상된 신축성 기판 및 그 제조 방법 |
US12055612B2 (en) | 2022-05-12 | 2024-08-06 | Joon Bu Park | Negative Poisson's ratio materials for energy absorption |
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2014
- 2014-09-08 EP EP14771472.9A patent/EP3043760A1/en not_active Withdrawn
- 2014-09-08 WO PCT/US2014/054484 patent/WO2015038457A1/en active Application Filing
- 2014-09-08 US US14/479,883 patent/US20150073369A1/en not_active Abandoned
- 2014-09-08 CN CN201480046093.XA patent/CN105473112A/zh active Pending
- 2014-09-08 JP JP2016540453A patent/JP6227787B2/ja not_active Expired - Fee Related
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US20150073369A1 (en) | 2015-03-12 |
EP3043760A1 (en) | 2016-07-20 |
WO2015038457A1 (en) | 2015-03-19 |
JP2016533843A (ja) | 2016-11-04 |
CN105473112A (zh) | 2016-04-06 |
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