JP6537248B2 - 機能性物質薄膜素材の製造方法並びに機能性物質薄膜素材およびその積層体 - Google Patents
機能性物質薄膜素材の製造方法並びに機能性物質薄膜素材およびその積層体 Download PDFInfo
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Description
共に薄膜状のPETフィルム1とPPフィルム2とをウエットラミネート法またはドライラミネート法によって非シリコーン系接着層3を介して剥離自在に積層する。
第2のPPフィルムへの機能性物質の積層工程は、第1のPETフィルムとPPフィルムとの積層工程に連続して実行する場合と、非連続に実行する場合とを選択して実行するとよい。
第3の機能性物質の仕上げ工程おいては、連続的に走行搬送されているPPフィルム2の非シリコーン系接着層3の積層されていない表面に対して積層された機能性物質を100〜130℃の温度領域に加熱することによって薄膜状の機能性物質薄膜素材4に形成する仕上げ処理を実行する。仕上げ処理における加熱温度、搬送速度、加熱の搬送方向長さ等の仕上げ条件は完成させる機能性物質薄膜素材4の特性に応じて調整すると良い。また、第3工程の終了によって製造された機能性物質薄膜素材4はPPフィルム2に対して当該機能性物質薄膜素材4およびPPフィルム2の相性によって固着もしくは剥離自在に積層されることとなる。
本実施形態においては、非シリコーン系接着層3による接着強度を、PPフィルム2に積層した薄膜状の機能性物質を機能性物質薄膜素材4に仕上げるために100〜130℃の加熱温度に加熱する際においてPPフィルム2に熱変形が発生しない大きさに予め設定しているので、PPフィルム2が第3の仕上げ工程終了後まで継続して均一厚さおよび平坦性を維持することができ、このPPフィルム2の性状によって均一厚さの平坦な機能性物質薄膜素材4およびその積層体を得ることができる。
PETフィルムとして、東レ社製、T60、厚さ:50μmを用いた。
PPフィルムとして、ミルウィック社(MIRWEC FILM INC. 米国)製、 BOPLON(登録商標)FILM、厚さ:20μmを用いた。
両者のラミネート法として次の2種類のラミネート法を用いた。
ウエットラミネート法においては、スロットダイ法によってUV硬化粘着剤を乾燥厚みが50μmとなるようにPETフィルム1に塗工し、その後PETフィルム1とPPフィルム2とをラミネートし、その後1分間UVを照射してUV硬化粘着剤を固化させた。
ドライラミネート法においては、スロットダイ法によってアクリル系粘着剤を乾燥厚みが25μmとなるようにPETフィルム1に塗工し、その後100℃で1分間乾燥してPETフィルム1にアクリル系粘着剤層を形成した。その後アクリル系粘着剤層にPPフィルム2をドライラミネートした。
(実施例1:機能性物質として弾性部材を用いた例)
弾性部材としてニトリル系ゴム接着剤を用いた。
機能性物質薄膜素材の製法:
スロットダイ法によってニトリル系ゴム接着剤を乾燥厚みが35μmとなるようにPPフィルム2の表面に塗工し、その後100℃、110℃、120℃、30℃で2分間乾燥させて4種類のニトリル系ゴム接着剤を固化させた。
機能性物質薄膜素材の機能:
このようにして製造された4種類のニトリル系ゴム接着剤の薄膜層はPPフィルム2から剥離自在であり、均一厚さおよび平坦性を維持している。
このニトリル系ゴム接着剤の薄膜層としては、次の機能を有している。
第1に、自動車部品の接着剤として使用されるニトリル系ゴム接着剤を、均一厚さおよび平坦性を備えた薄膜シート状に加工することができる。
第2に、既存のシリコーン系離型フィルムの表面に剥離自在に形成したニトリル系ゴム接着剤の薄膜層においては、接着面へのシリコーンの移行により、接着強度が低下するという問題点があるが、本実施例におけるノンシリコーン離型フィルムとなるPPフィルム2の表面にニトリル系ゴム接着剤の薄膜層を作製することによって当該ニトリル系ゴム接着剤の薄膜層は安定した強度を確保できる。
第3に、ニトリル系ゴム接着剤はトルエン等の有機溶媒を含んでいるため、100℃以上に温度を上げて乾燥する必要がある。通常のPPフィルムにおいては100℃に加熱すると軟化して均一厚さおよび平坦性を維持することはできないという問題点があるが、本実施例におけるPPフィルム2は100〜130℃に加熱されても均一厚さおよび平坦性を維持できるために、ニトリル系ゴム接着剤の薄膜層の均一厚さおよび平坦性を維持することができる。
樹脂部材としてシリコーン系樹脂を用いた。
機能性物質薄膜素材の製法:
スロットダイ法によってシリコーン系樹脂を乾燥厚みが100〜120μmとなるようにPPフィルム2の表面に塗工し、その後100℃、110℃、120℃、30℃で2分間乾燥させてシリコーン系樹脂を固化させた。
機能性物質薄膜素材の機能:
このようにして製造されたシリコーン系樹脂の薄膜層はPPフィルム2から剥離自在であり、均一厚さおよび平坦性を維持している。
このシリコーン系樹脂の薄膜層としては、次の機能を有している。
第1に、シリコーン系樹脂の薄膜層は再剥離可能な粘着層として使用でき、またクッション材として使用できる。
第2に、シリコーン系樹脂は既存のシリコーン系離型フィルムの表面に対しては同素材のために剥離自在に形成することが不可能であるが、本実施例におけるノンシリコーン離型フィルムとなるPPフィルム2の表面にシリコーン系樹脂の薄膜層を剥離自在に作製することができる。
第3に、シリコーン系樹脂の硬化を促進するためには100〜130℃の温度で熱処理する必要がある。通常のPPフィルムにおいては100℃に加熱すると軟化して均一厚さおよび平坦性を維持することはできないという問題点があるが、本実施例におけるPPフィルム2は100〜130℃に加熱されても均一厚さおよび平坦性を維持できるために、シリコーン系樹脂の薄膜層の均一厚さおよび平坦性を維持して製造することができる。
2 PPフィルム
3 非シリコーン系接着層
4 機能性物質薄膜素材
Claims (2)
- PETフィルムの表面に非シリコーン系接着層を介して剥離自在に積層したPPフィルムの前記非シリコーン系接着層の積層されていない表面に対して機能性物質を薄膜状に積層し、その後100〜130℃の温度領域に加熱することによって薄膜状の前記機能性物質に仕上げ処理を施して機能性物質薄膜素材を形成する機能性物質薄膜素材の製造方法であって、
前記PETフィルムに対する前記PPフィルムの積層は、前記非シリコーン系接着層としてUVインクを用いてウエットラミネート法によって行われており、
前記非シリコーン系接着層による接着強度を、前記PPフィルムに積層した薄膜状の機能性物質を機能性物質薄膜素材に仕上げるために100〜130℃の加熱温度に加熱する際においてPPフィルムに熱変形が発生しない大きさに予め設定して、平坦な機能性物質薄膜素材を形成する
ことを特徴とする機能性物質薄膜素材の製造方法。 - PETフィルムの表面に非シリコーン系接着層を介して剥離自在に積層したPPフィルムの前記非シリコーン系接着層の積層されていない表面に対して機能性物質を薄膜状に積層し、その後100〜130℃の温度領域に加熱することによって薄膜状の前記機能性物質に仕上げ処理を施して機能性物質薄膜素材を形成する機能性物質薄膜素材の製造方法であって、
前記PETフィルムに対する前記PPフィルムの積層は、前記非シリコーン系接着層としてアクリル系粘着剤を用いてドライラミネート法によって行われており、
前記非シリコーン系接着層による接着強度を、前記PPフィルムに積層した薄膜状の機能性物質を機能性物質薄膜素材に仕上げるために100〜130℃の加熱温度に加熱する際においてPPフィルムに熱変形が発生しない大きさに予め設定して、平坦な機能性物質薄膜素材を形成する
ことを特徴とする機能性物質薄膜素材の製造方法。
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US15/523,262 US10538068B2 (en) | 2014-10-31 | 2015-02-05 | Method for producing functional-substance thin film material, functional-substance thin film material, and laminate thereof |
EP15853718.3A EP3213914A4 (en) | 2014-10-31 | 2015-02-05 | Process for producing functional-substance thin film material, functional-substance thin film material, and laminate thereof |
PCT/JP2015/053199 WO2016067641A1 (ja) | 2014-10-31 | 2015-02-05 | 機能性物質薄膜素材の製造方法並びに機能性物質薄膜素材およびその積層体 |
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