JP2017002235A - 支持体層を備えた積層フィルム及びそのフィルムロール - Google Patents
支持体層を備えた積層フィルム及びそのフィルムロール Download PDFInfo
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Abstract
Description
図1A及び図1Bは、一実施形態による積層フィルム10を示す。図1Cは、積層フィルム10の変形例を示す。図2A及び図2Bは、積層フィルム10が有する支持体層12を示す。
例えば、h≧50μm、h≧0.50×t、h≦120μm、又はh≦2000μmであることができる。好ましくは、h≧0.75×t又はh≧tとすることができる。
ii)隣り合う壁部分24、26のピッチp1、p2(図2B):
例えば、p1≧200μm、p1≧400μm、p2≧200μm、p2≧400μm、p1≦4000μm、p1≦1000μm、p2≦4000μm、若しくはp2≦1000μm、又はp1=p2であることができる。
iii)微細突起20(壁部分24、26)の先端20aの幅w1、w2(図2B):
例えば、w1>0μm、w2>0μm、w1≦100μm、若しくはw2≦100μm、又はw1=w2であることができる。
iv)微細突起20と粘着層16との接触面の、粘着層16の全面に対する面積率R:
例えば、R>0%、又はR≦50%であることができる(微細突起20及び粘着層16の双方を剛体と仮定した場合)。
v)微細突起20の両側面20bの交差角度θ(図5):
例えば、θ≧0°、θ≦90°、又はθ≦60°であることができる。
図6B:複数の円環状の壁部分24を複数の直線状の壁部分26によって連結した壁状部22を備える。
図6C:互いに交差する複数の直線状の壁部分24、26を有する壁状部22と、壁部分24、26によって包囲された矩形又は菱形の空間内に壁状部22から離隔して配置される柱状部28とを備える。
図6D:複数の波状の壁部分24、26を組み合わせた壁状部22を備える。
図6E:複数の直線状の壁部分24を、互いに平行かつ所定間隔で離隔するように配置した壁状部22を備える。この場合、壁状部22は、粘着層16と支持体層12との間で空気層18(図4B)を部分的に包囲する。積層フィルム10の適用によっては、このような壁状部22であっても、空気層18に隣接する粘着層16の主部分16a(図4B)を汚染から保護することができる。
図6G:複数の台形状の壁部分24を組み合わせた壁状部22を備える。
図6H:複数の六角形状の壁部分24を組み合わせた壁状部22を備える。
図6I:互いに交差する複数の直線状の壁部分24、26を、それぞれに異なる間隔で配置した壁状部22を備える。このような壁状部22を備える微細突起20は、支持体層12の剥離力が粘着層16に沿った支持体層12の剥離方向に応じて異なるようにする形状を有するものである。図示の例では、間隔の広い壁部分24が順次剥離される方向(つまり壁部分26に略平行な方向)へ支持体層12を剥離するときの剥離力は、間隔の狭い壁部分26が順次剥離される方向(つまり壁部分24に略平行な方向)へ支持体層12を剥離するときの剥離力よりも小さくなる。
図2A及び図2Bに示す支持体層12を、微細突起20のパラメータi、ii及びivを変更して作製し、サンプル1〜5を用意した。個々のサンプル1〜5は、ホモポリプロピレンと低密度ポリエチレンとの90/10のブレンドを材料として厚み200μmのオレフィンシートを作製した後、微細突起20の雌型を有する金属製の型板にオレフィンシートを加熱下で押し付けることにより作製した。他方、ホモポリプロピレンと低密度ポリエチレンとの90/10のブレンドから作製した厚み200μmの平坦なオレフィンシートを、比較例1による支持体層12′とした。
サンプル1:h=100μm、p1=p2=500μm、R=6.9%
サンプル2:h=100μm、p1=p2=800μm、R=4.3%
サンプル3:h=100μm、p1=p2=1000μm、R=3.5%
サンプル4:h=75μm、p1=p2=800μm、R=4.3%
サンプル5:h=125μm、p1=p2=800μm、R=3.5%
他のパラメータiii及びvは共通とし、w1=w2=35μm、θ=40°とした。
粘着層16及び基材層14を有するシリコーン粘着テープとして、下記のテープ2及びテープ3を用意した。
テープ2:粘着剤としてMQ樹脂(MQ803TF(商品名))(Wacker chemie AG(ミュンヘン)より入手可能)60部を、シラノール末端ポリジメチルシロキサン液(Wacker Elastomer 350N(商品名))(Wacker chemie AG(ミュンヘン)より入手可能)100部に溶かしてコーティングシロップを得た。このコーティングシロップを、実験1のテープ1の基材層14と同じ不織布からなる基材層14に、ナイフコータによって厚み0.050mmに塗布し、その直後に、60KGy/180KeVの電子ビーム照射に曝して硬化させ、粘着層16を形成した。
テープ3:コーティングシロップの塗布厚みを0.025mmとした以外は、テープ2と同じ条件で作製した。
図2A及び図2Bに示す支持体層12を、図3を参照して説明した方法により、サンプル2と同じパラメータi〜vで作製し、サンプル6を用意した。目付量は800g/m2であった。他方、比較例2として、表面にフロロシリコーン剥離剤を塗布した支持体層12′(Fujiko K1(商品名))(株式会社フジコー(丸亀市)より入手可能)を用意し、比較例3として、表面にフロロカーボン剥離剤を塗布した支持体層12′(Scotchpak(商標名) 9741(商品名))(スリーエムジャパン株式会社(東京都)より入手可能)を用意した。
粘着層16及び基材層14を有するシリコーン粘着テープとして、下記のテープ4を用意した。
テープ4:粘着剤としてMQ樹脂(MQ803TF(商品名))(Wacker chemie AG(ミュンヘン)より入手可能)30部を、トリメチルシリル末端ポリジメチルシロキサン液(Wacker shilicone fluid AK 1,000,000(商品名))(Wacker chemie AG(ミュンヘン)より入手可能)100部に溶かしてコーティングシロップを得た。このコーティングシロップを、シリコーン処理したPETフィルムからなる基材層14に、ナイフコータによって厚み0.050mmに塗布し、その直後に、40KGy/180KeVの電子ビーム照射に曝して硬化させ、粘着層16を形成した。
実験4で条件3及び条件2に曝した後の模擬積層体42、42′から支持体層12、12′を剥離して、それぞれのテープ4の粘着層16をステンレス板に重ね、重さ2kgのローラを基材層14の上で1往復させて、個々のテープ4をステンレス板に貼り付けた。それらテープ4をステンレス板から180°方向へ300mm/分の速度で剥離する剥離試験を行い、テープ4をステンレス板から剥離するために要する力(すなわち接着強度)(N/25mm)を測定した。測定結果(3回の試験の平均値)を表5に示す。
12 支持体層
14 粘着層
16 基材層
18 空気層
20 微細突起
20a 先端
22 壁状部
24、26 壁部分
28 柱状部
42 フィルムロール
46 空気層部分
Claims (10)
- 互いに反対側の第1面及び第2面を有する基材層と、
前記第1面に積層される粘着層と、
前記第2面に剥離可能に積層され、前記基材層を広げた状態に支持する支持体層とを具備し、
前記支持体層の、前記基材層とは反対側の面に、微細突起が設けられる、
積層フィルム。 - 請求項1に記載の積層フィルムを、前記粘着層を内側に向けて巻くとともに、前記微細突起の先端を前記粘着層に接触させてなる、フィルムロール。
- 前記粘着層と前記支持体層との間に、前記微細突起によって少なくとも部分的に包囲される空気層が形成される、請求項2に記載のフィルムロール。
- 前記微細突起は、前記空気層に隣接する前記粘着層の主部分を汚染から保護する壁状部を備える、請求項3に記載のフィルムロール。
- 前記壁状部は、互いに交差する複数の壁部分を有する、請求項4に記載のフィルムロール。
- 前記壁状部は、互いに離隔する複数の壁部分を有する、請求項4に記載のフィルムロール。
- 前記空気層は、前記複数の壁部分によって分割される複数の空気層部分を有する、請求項5又は6に記載のフィルムロール。
- 前記微細突起は、先端で前記粘着層に接触する柱状部を備える、請求項2〜7のいずれか1項に記載のフィルムロール。
- 前記面からの前記微細突起の突出高さが、前記粘着層の厚み以上である、請求項2〜8のいずれか1項に記載のフィルムロール。
- 前記微細突起と前記粘着層との間に剥離剤が存在しない、請求項2〜9のいずれか1項に記載のフィルムロール。
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US15/579,970 US20180179419A1 (en) | 2015-06-12 | 2016-06-08 | Laminated film with backing layer, and film roll of same |
PCT/US2016/036346 WO2016200876A1 (en) | 2015-06-12 | 2016-06-08 | Laminated film with backing layer, and film roll of same |
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WO2019066344A3 (ko) * | 2017-09-26 | 2019-05-23 | 주식회사 엘지화학 | 디스플레이 화소 전사용 패턴 필름 및 이를 이용한 디스플레이의 제조방법 |
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JP6570329B2 (ja) | 2015-06-12 | 2019-09-04 | スリーエム イノベイティブ プロパティズ カンパニー | 粘着層と剥離層とを備えた物品 |
US11426967B2 (en) * | 2016-06-30 | 2022-08-30 | 3M Innovative Properties Company | Cushioning structures including interconnected cells |
WO2020045379A1 (ja) * | 2018-08-28 | 2020-03-05 | リンテック株式会社 | 熱電変換材料のチップの製造方法及びその製造方法により得られたチップを用いた熱電変換モジュールの製造方法 |
CN115582024B (zh) * | 2022-10-14 | 2023-06-02 | 哈尔滨工程大学 | 一种海水淡化-海水提铀膜内衬制备方法及其装置 |
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DE7931547U1 (de) * | 1979-11-08 | 1980-02-07 | Hoechst Ag, 6230 Frankfurt | Klebeband |
US5130185A (en) * | 1990-08-24 | 1992-07-14 | Ness Irving S | Doubled sided pressure sensitive adhesive |
JPH0633022A (ja) * | 1992-07-20 | 1994-02-08 | Sekisui Chem Co Ltd | 粘着シートもしくはテープ用基材の製造方法、及び粘着シートもしくはテープ用基材、並びに粘着シートもしくはテープ |
US5902260A (en) * | 1997-03-14 | 1999-05-11 | Hollister Incorporated | Thin film wound dressing with stretchable foraminous backing layer |
US6524675B1 (en) * | 1999-05-13 | 2003-02-25 | 3M Innovative Properties Company | Adhesive-back articles |
US8323773B2 (en) * | 2001-10-09 | 2012-12-04 | 3M Innovative Properties Company | Laminates with structured layers |
US20040001931A1 (en) * | 2002-06-25 | 2004-01-01 | 3M Innovative Properties Company | Linerless printable adhesive tape |
US20050074573A1 (en) * | 2003-10-01 | 2005-04-07 | Bowen Kurt Thomas | Engineered structured release liner and processes for making the same |
US8252407B2 (en) * | 2005-01-12 | 2012-08-28 | Avery Dennison Corporation | Adhesive article having improved application properties |
US7790259B2 (en) * | 2006-03-17 | 2010-09-07 | Hung-Chih Wu | Cut-free magnetic tape structure |
EP2646517A4 (en) * | 2010-12-03 | 2014-05-14 | 3M Innovative Properties Co | EXTRUDABLE URETHANE PARTICLE COATING |
US8530021B2 (en) * | 2011-03-08 | 2013-09-10 | 3M Innovative Properties Company | Microstructured tape |
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CN110603142A (zh) * | 2017-09-26 | 2019-12-20 | 株式会社Lg化学 | 用于转印显示像素的图案膜及使用其制备显示器的方法 |
JP2020520821A (ja) * | 2017-09-26 | 2020-07-16 | エルジー・ケム・リミテッド | ディスプレイ画素転写用パターンフィルムおよびこれを用いたディスプレイの製造方法 |
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EP3307532B1 (en) | 2019-10-09 |
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US20180179419A1 (en) | 2018-06-28 |
EP3307532A4 (en) | 2019-01-16 |
EP3307532A1 (en) | 2018-04-18 |
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