JP5921770B2 - 伸張剥離物品 - Google Patents
伸張剥離物品 Download PDFInfo
- Publication number
- JP5921770B2 JP5921770B2 JP2015514253A JP2015514253A JP5921770B2 JP 5921770 B2 JP5921770 B2 JP 5921770B2 JP 2015514253 A JP2015514253 A JP 2015514253A JP 2015514253 A JP2015514253 A JP 2015514253A JP 5921770 B2 JP5921770 B2 JP 5921770B2
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- JP
- Japan
- Prior art keywords
- adhesive
- backing
- article
- substrate
- strips
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- BSKOLJVTLRLTHE-UHFFFAOYSA-N CCC1C(C)CCC1 Chemical compound CCC1C(C)CCC1 BSKOLJVTLRLTHE-UHFFFAOYSA-N 0.000 description 1
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Description
互いに対向する基材どうしを接着するための両面接着用物品が提供される。より具体的には、当該両面接着用物品は、両基材の少なくとも一方から、当該一方の基材に損傷を与えることなく、引き剥がすことが可能なものである。
引き剥がすことが可能な接着用物品は、非常に多くの種類の、商業的及び工業的用途において、一時的接着の必要に対するソリューションを提供する。これらの接着用物品は、当該物品を、その接着された基材と実質的に平行な方向に、物品の長手方向に伸張させることで、当該基材から容易に取り外すことができる。接着剤は伸張されると実質的な劣化を生じるので、伸張させる動作により、接着剤を、その付着している基材に損傷を与えることなく、簡便に引きがすことができるようになる。これらの物品は、通常、2つの異なる基材を互いに接合するために用いられ、しかも、その2つの接着接合された材料を、いずれの基材にも損傷を与えることなく、互いに分離することを可能にする。
再剥離性接着剤を設計することは、ユーザー体験という点に関して、独特の課題を提示する。ある用途においては、ユーザーは、剥がすという動作は、基材に接着接合されている物品を取り外す場合に、より直観的な方法であると感じる。しかしながら、基材から分離をすることは、従来の引き剥がすことが可能な接着剤の場合には、当該接着剤をその長手方向でかつ基材表面の平面に対して実質的に平行な方向に引っ張らない限り、そのような分離を有効に行うことはできない。その結果、接着剤を剥離するのに過大な力が必要とされる場合があるばかりか、下手をすると、接着剤のかすが、剥離後も基材の表面に残されるということも起こり得る。このような問題に対処するために、弱い接着剤を用いるということも考え得るが、そのような解決法は、衣類へ貼り付ける場合には、不適切であるということが多々あり得る。
引き剥がすことが可能な接着剤を用いた物品及びアセンブリを、それらの製造及び使用に関連する方法とともに、以下にさらに詳しく説明する。引き剥がすことが可能な物品及びアセンブリは、以下で広く検討されるが、医療用製品、工業用製品、及び消費者製品を含む多くの用途のいずれにも合わせてカスタマイズすることができる。特に、これらの構造物は、剛直な基材(例えば壁)及び可撓性のある基材(例えば衣類)の両方を含むさまざまな基材に対して物品を貼り付けることに特化することができる。
パーセント回復率(Percent recovery)=(Ls−Lr/Lo)×100(ただし、Lo及びLsは上と同様であり、Lrは、伸張して離した後の長さである(通常は、例えば「5分」というように、伸張からの解放の時間が与えられる)。
裏材の両サイド上の接着剤層を示す第1及び第2のパターンが映し出されたものが、互いにわずかに重なり合うことがあってもよい。このことは、図3及び図4A〜4Bにそれぞれ平面図及び断面図が図示される、他の例示的実施形態による接着用物品200によって示される。物品100と同様に、物品200は、概ね平坦で平面状の、連続的な弾性のある裏材202を備えている。裏材202には、細長い接着剤の条片208及び210の2つのセットが、裏材202の第1の主表面204及び第2の主表面206のそれぞれに接触し、それにわたって延伸している。図3に示すように、複数の条片208は互いに平行である。同様に、複数の条片210も互いに平行である。
上に述べた接着用物品は、必要な用途に応じて、さまざまな種類の構成及びアセンブリに製造され、パッケージされ、提供され得る。例えば、提供される接着用物品の上面と下面をライナーによってコーティングし、むき出しの接着性の表面を保護させる場合があり得る。ライナーは、離脱可能な表面部として機能し、接着用物品のパッケージに組み込まれることができ、又は、必要に応じて、積み重ねられた接着用物品において、隣接する接着用物品の一部になっていることができる。接着用物品は、連続的に製造されてもよく、ロール状に巻かれ、そして両面テープとして使用するように転換してもよい。この最後の構成は、多くの従来の両面テープ構造物がそうであるように、その両面に剥離ライナーを備えていてもよい。
両面接着アセンブリ600を基材690から分離する方法の一例が、図11に示されている。アセンブリ600は、永久的に貼り付けられた基材650に固定されている平坦な両面接着用物品680を備える。物品100と同様に、物品680は、上表面604及び下表面606を有する、平面的で弾性のある裏材682を備える。第1の接着剤608は、上表面604にわたって第1の2次元パターンにしたがって延在し、第2の接着剤610は、下表面606にわたって第2の2次元パターンにしたがって延在している。図示されている実施形態においては、前記第1及び第2のパターンは上から見ると、互いに重なってはいない。
A.基材から、実質的に弾性のある裏材と、第1の2次元パターンにしたがって上表面に広がる第1の接着剤と、第2のパターンにしたがって下表面に広がる第2の接着剤と、を有する概ね平坦な接着用物品を引き離す方法であって、前記第1及び第2のパターンは、上から見ると概ね互いに重なり合わない方法で、当該方法は、
第1の接着剤を基材から剥がすために、裏材及び第1の接着剤を、裏材と概ね平行な方向に、第2の接着剤がついていない接着用物品の領域に沿って伸ばすことと、
裏材及び第2の接着剤を裏材に対して概ね平行な方向に、第1の接着剤がついていない接着用物品の領域に沿って伸ばすことと、を含み、第1及び第2の接着剤はともに、裏材に貼り付いたままである方法。
B.実施形態Aの方法であって、裏材を伸張することは、基材に対して少なくとも90度の剥離角度で、裏材を剥離することを含む。
C.実施形態Bの方法であって、裏材を伸張することは、基材に対して少なくとも120度の剥離角度で、裏材を剥離することを含む方法。
D.実施形態A〜Cのいずれか1つの方法であって、基材は第1の基材であり、接着用物品は、第2の接着剤によって裏材に永久的に貼り付けられた第2の基材をさらに含む方法。
E.実施形態A〜Dのいずれか1つの方法であって、裏材を伸張することは、第2の基材を第1の基材から剥離することを含む方法。
実施例において用いられる材料が表1に示されている。
全ての試験は、一定の温度(摂氏23度±2度)及び、相対湿度50%±5%で実施した。データ記録のためのコンピュータ及び必要な荷重範囲を具えた不変定数の拡張引張試験器(インストロンエンジニアリング社(Instron Engineering Corporation)マサチューセッツ州カントン、から入手可能な、モデル55564 HS)を使用した。装置のクロスヘッド速度は、毎分12インチ(毎分30.5cm)にセットした。
ポリプロピレンフィルムの端部を、インストロンの上あご部に置き、ガラス板はインストロン上の135度固定用治具内に置いた。装置を作動し、応力−伸び曲線を測定した。平均荷重(g(f))及び曲線の下にある面積(エネルギー、mJ)が報告された。T剥離測定(紙にはりあわされたポリプロピレン)が、ガラス板を含まない試料に対して実施された。特に言及しない限り、剥離は接着用物品の条片の向きに実行された。
ポリプロピレンフィルムの端部を、インストロン装置の上あご部に置き、ガラス板はインストロン上の180度固定用治具内に置いた。装置を作動し、応力−伸び曲線を測定した。平均荷重(g(f))及びその曲線下面積(エネルギー、mJ)が報告された。フィルムがガラス板から離れるまでに引っ張られた距離も測定された(cm)。特に言及しない限り、せん断は接着用物品の条片の向きに実行された。
接着剤
接着剤の組成を表2に示す。
弾性のある裏材として、3M社(ミネソタ州セントポール)から入手可能な、B430シリーズの弾性材を用いた。この素材は、3層の積層体で、異方性の弾性体コアを有し、マイクロ活性化された、非弾性材ポリプロピレンのスキン層がコアを取り囲んでいる。
剥離ライナー上の接着剤の条片(幅0.635cm)がカットされ、弾性のある裏材の第1のサイドにくっつけられた。条片は矩形であり、隣り合う条片とは、約0.95cm離されて、平行になっている。さらに、剥離ライナー上の接着剤の条片(幅0.635cm)がカットされ、弾性のある裏材の第2の(逆側の)サイドに、第1のサイドの条片どうしの間にくっつけられた。弾性のある裏材の対向するサイドにある条片どうしは互いに重なり合っておらず、約0.16cmの隙間が存在していた。
E−2〜E−5が、E−1と同様に、表4に記載の隙間によって準備された。
実施例1に記載されたのと同様に、対照例が準備された。ただし、弾性のある裏材の第1のサイド全体が、剥離ライナー上の接着剤で覆われていた。第2のサイド上の条片は、第1のサイド上の接着剤コーティングと重なっていた。
C−2が、C−1と同様にして準備された。C−3及びC−4が、ポリプロピレンがガラスではなく紙と貼り合わされたこと以外はC−1と同様にして準備された。
せん断及び接着のデータは表3〜5に示される。これらの試料については、ポリプロピレンフィルムは接着剤の条片の向きに引っ張られた。
表3に示されるように、弾性的積層体E−1は、剥がれるまでに2cm引っ張る必要があったが、C−1の積層体は、0.4cmしか引っ張らなくても剥がれた。
表4は、名目上の隙間幅が−0.16cm〜0.64cmであるE−2〜E−5の剥離性能を示す。また、それらを隙間幅が0であるC−2と比較している。このデータは、裏材が剥離動作中に伸びる能力が、接着力を減少させて、剥離して取り除くことを容易にするということを示している。
Claims (1)
- 第1及び第2の主表面を有する、平坦で、実質的に弾性のある裏材と、
第1の2次元パターンにしたがって、前記第1の主表面を覆う第1の接着剤と、
第2の2次元パターンにしたがって、前記第2の主表面を覆う第2の接着剤と、を備え、
前記裏材は、100%の伸長に対して、少なくとも70%の弾性回復率を有し、
第1の主表面上において、第1の接着剤によって覆われている前記裏材の領域は、実質的に、対抗する第2の主表面上が第2の接着剤によって覆われておらず、かつ、第2の主表面上において、第2の接着剤によって覆われている前記裏材の領域は、実質的に、対抗する第1の主表面上が第1の接着剤によって覆われていないことによって、前記第1及び第2のパターンの双方を、前記裏材と平行な参照面に映し出して見たとした場合に、前記第1及び第2のパターンは互いに実質的に重ならない、両面接着用物品。
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2013
- 2013-12-12 PL PL13815318T patent/PL2859057T3/pl unknown
- 2013-12-12 CN CN201380026896.4A patent/CN104321399A/zh active Pending
- 2013-12-12 WO PCT/US2013/074517 patent/WO2014105433A1/en active Application Filing
- 2013-12-12 EP EP13815318.4A patent/EP2859057B1/en not_active Not-in-force
- 2013-12-12 KR KR1020147032655A patent/KR101620257B1/ko active IP Right Grant
- 2013-12-12 KR KR1020157024840A patent/KR101668210B1/ko active IP Right Grant
- 2013-12-12 BR BR112015001010A patent/BR112015001010A2/pt not_active Application Discontinuation
- 2013-12-12 JP JP2015514253A patent/JP5921770B2/ja not_active Expired - Fee Related
- 2013-12-12 MX MX2014014103A patent/MX2014014103A/es active IP Right Grant
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2014
- 2014-10-20 US US14/518,071 patent/US9572722B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN104321399A (zh) | 2015-01-28 |
KR20140143848A (ko) | 2014-12-17 |
PL2859057T3 (pl) | 2017-01-31 |
US20150034241A1 (en) | 2015-02-05 |
WO2014105433A1 (en) | 2014-07-03 |
EP2859057B1 (en) | 2016-07-27 |
BR112015001010A2 (pt) | 2017-06-27 |
JP2015520791A (ja) | 2015-07-23 |
KR20150111369A (ko) | 2015-10-05 |
KR101668210B1 (ko) | 2016-10-20 |
KR101620257B1 (ko) | 2016-05-12 |
US9572722B2 (en) | 2017-02-21 |
US20140186566A1 (en) | 2014-07-03 |
MX2014014103A (es) | 2015-01-26 |
EP2859057A1 (en) | 2015-04-15 |
US8889240B2 (en) | 2014-11-18 |
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