JP5644049B2 - 積層フィルムおよび成形体 - Google Patents
積層フィルムおよび成形体 Download PDFInfo
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- JP5644049B2 JP5644049B2 JP2008513423A JP2008513423A JP5644049B2 JP 5644049 B2 JP5644049 B2 JP 5644049B2 JP 2008513423 A JP2008513423 A JP 2008513423A JP 2008513423 A JP2008513423 A JP 2008513423A JP 5644049 B2 JP5644049 B2 JP 5644049B2
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- resin
- layer
- laminated film
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Description
また、特許文献2には、ポリエステル系樹脂層、接着性樹脂層、隠蔽性樹脂層及び、遮光性樹脂層からなる多層容器が提案されている。これらの技術はやや光沢度が高まるものの、シート表面に映り込んだ像の鮮明性が不足しており、ピアノの外観のような深みと光沢のある漆黒を表現することは不可能であった。
【0013】
本発明の積層フィルムでは、ポリエステルを70wt%以上含んでなることが好ましい。ポリエステルを70wt%以上含んでなると、フィルム内部での散乱・反射が抑制され、より深みのある黒色フィルムとなるとともに、成形性や耐熱性、耐溶剤性にも優れたものとなる。A層が、エチレンテレフタレート共重合樹脂、B層が、ポリエチレンテレフタレートを含んでなる。
(物性値の評価法)
(1)光学濃度
X−Rite社製透過濃度計X−Rite361T(V)を用いてフィルムの透過濃度を測定した。サンプル測定前は当該機器に附属の説明書の記載に則り、ゼロ点合わせおよび標準板の数値確認を行った。
(2)光沢度
JIS7105(1981)に従って、スガ試験機製デジタル変革光度計UGV−5Dを用いて、光沢度(60度鏡面光沢度 Gs(60°))を測定した。
(3)像鮮明度
JIS7105(1981)に従って、スガ試験機製のクラリティメーターを用いて、反射の像鮮明度(幅0.5mmの光学くし 像鮮明度 C(0.5))を測定した。
(4)表面粗さ
小坂研究所製の高精度薄膜段差測定器ET−10を用いて測定した。条件は下記のとおりである。また、測定した面は、B層側の表面を測定した。
触針荷重 : 5mg
測定長 : 1mm
カットオフ : 0.08mm
触針スピード : 4μm/sec
なお、Raの定義は、JIS B0601(1994)に示されている。
(5)外観
500mm×500mmのフィルムを目視にて観察し、ピアノのように深みがあり光沢のある黒色である場合を◎、やや深みが不足している、もしくは光沢が不足している場合を○、深みも光沢も不足している場合を×とした。
(6)融点
示差熱量分析(DSC)を用い、JIS−K−7122(1987年)に従って、以下の装置・条件で測定・算出した。
装置:セイコー電子工業(株)製”ロボットDSC−RDC220”
データ解析”ディスクセッションSSC/5200”
サンプル質量:5mg
昇温速度:20℃/分
(7)L*(SCI)、L*(SCE)
サンプルを5cm×5cmで切り出し、次いでサンプル裏面をマジックインキ(登録商標)で黒く塗り、コニカミノルタ(株)製CM−3600dを用いて、測定径φ8mmのターゲットマスク(CM−A106)条件下で反射物体色を測定し、明度L*(SCI)、L*(SCE)をそれぞれ求めた。なお、光源設定はD65とし、n数3回の平均値をもちいた。また、白色校正板はCM−A103、ゼロ校正ボックスはCM−A104を用いた。
(比較例6〜8)
2種類の樹脂として、樹脂Aと樹脂Bを準備した。樹脂Aとして、三菱化学製 カーボンブラックHCF #2600 2.5wt%を微分散した固有粘度0.63のポリエチレンテレフタレート(PET)を用いた。また樹脂Bとして固有粘度0.65のポリエチレンテレフタレートを用いた。樹脂Aおよび樹脂Bをそれぞれ180℃の温度で3時間真空乾燥を行った後、別々の一軸押出機に供給した。なお、PETの融点は256℃であった。
(比較例9〜11)
2種類の樹脂として、樹脂Aと樹脂Bを準備した。樹脂Aとして、三菱化学製 カーボンブラックHCF #2600 2.5wt%を微分散した固有粘度0.63のポリエチレンテレフタレート(PET)を用いた。また樹脂Bとして固有粘度0.68のポリエチレンナフタレートを用いた。樹脂Aおよび樹脂Bをそれぞれ180℃の温度で3時間真空乾燥を行った後、別々の一軸押出機に供給した。なお、PENの融点は263℃であった。
(比較例12〜13)
樹脂A中のカーボンブラックの含有量を表1に示すように変えた以外は、比較例6と同様に製膜した。得られた結果を表1に示す。
(比較例14〜15)
樹脂Bとして、平均粒径1μmのシリカ粒子を含んだ固有粘度0.65のポリエチレンテレフタレートを用いた以外は、比較例6と同様に製膜した。得られた結果を表1に示す。
(比較例1〜3)
各樹脂の流量とフィルム厚みを調整して、表1に示すように各層の厚みを変更した以外は、比較例6と同様に製膜した。得られた結果を表1に示す。
(比較例4)
樹脂Aのみを用いて製膜した以外は、比較例6と同様に製膜した。得られた結果を表1に示す。
(比較例5)
樹脂Bとして、平均粒径1μmのシリカ粒子を0.1wt%含んだ固有粘度0.65のポリエチレンテレフタレートを用いた以外は、比較例6と同様に製膜した。得られた結果を表1に示す。
(比較例16)
樹脂Bとして、ジメチルシリコーンを0.02wt%含有した固有粘度0.65のポリエチレンテレフタレートを用いた以外は、比較例6と同様に製膜した。得られた結果を表1に示す。得られたフィルムは、指紋が付きにくく、汚れにくいものとなった。
(実施例12)
樹脂Aとして、三菱化学製 カーボンブラックHCF #2600 2.5wt%を微分散した固有粘度0.72のシクロヘキサンジメタノールを30mol%共重合したポリエチレンテレフタレート(PE/CHDM・T)を用いた以外は、比較例6と同様に製膜した。なお、樹脂Aは実質的に融点が存在せず、非晶性樹脂であった。得られた結果を表1に示す。得られたフィルムは、全実施例中でもっとも外観に優れたものであった。
(実施例13)
樹脂Aとして、三菱化学製 カーボンブラックHCF #2600 2.5wt%を微分散した固有粘度0.70のイソフタル酸を15mol%共重合したポリエチレンテレフタレート(PET/I)を用いた以外は、比較例6と同様に製膜した。なお、樹脂Aの融点は215℃であった。得られた結果を表1に示す。
(実施例14)
三菱化学製 カーボンブラックHCF #2600を微分散した、非晶性樹脂である固有粘度0.72のシクロヘキサンジメタノールを30mol%共重合したポリエチレンテレフタレート(PE/CHDM・T)を準備した。次に、固有粘度が0.65のポリエチレンテレフタレート(30wt%)とこのカーボンブラックを微分散したシクロヘキサンジメタノールを30mol%共重合したポリエチレンテレフタレート(70wt%)をブレンドし、樹脂Aとして用いた以外は、比較例6と同様に製膜した。なお、樹脂Aの融点は255℃であり、カーボンブラックは樹脂A中に2.5wt%微分散されていた。得られた結果を表1に示す。
(比較例18)
融点が227℃であり、固有粘度1.4のポリプロピレンテレフタレート(PPT)であるDuPont社製のSORONA P90Dに三菱化学製 カーボンブラックHCF #2600を微分散した樹脂を準備した。次に、固有粘度が0.65のポリエチレンテレフタレート(90wt%)と、このカーボンブラックを微分散したポリプロピレンテレフタレート(10wt%)をブレンドし、樹脂Aとして用いた以外は、比較例6と同様に製膜した。なお、樹脂Aの融点は254℃であり、カーボンブラックは樹脂A中に2.5wt%微分散されていた。得られた結果を表1に示す。
(比較例17)
比較例18において、3層のフィードブロックを用い、両表層が樹脂Bとなり、芯層が樹脂Aとなるようにし、各層の厚みを表1のように調整した以外は、比較例6と同様に製膜した。得られた結果を表1に示す。このフィルムは、加熱処理などしても、比較例18に比較してカールが起きにくいものであった。なお、表中のB層の厚みは、片面側のB層の厚みを示したが、両面ともほぼ同様の厚みであった。
Claims (8)
- 黒色成分を含んでなるエチレンテレフタレート共重合樹脂を含んでなるポリエステル樹脂層(A層)と、実質的に無色透明なポリエチレンテレフタレート樹脂を含んでなる樹脂層(B層)とをそれぞれ1層以上有し、該A層の層厚みが20μm以上300μm以下であり、該B層の厚みが0.5μm以上200μm以下であって、該A層と該B層が隣接し、かつ少なくとも片側のフィルム表面の表面粗さRaが1nm以上25nm以下であり、A層が、非晶性樹脂または融点が240℃以下の樹脂を含んでなることを特徴とする二軸延伸積層フィルム。
- 積層フィルム中にポリエステルを70wt%以上含んでなることを特徴とする請求項1に記載の積層フィルム。
- A層およびB層が、ポリエチレンテレフタレート、エチレンテレフタレートの共重合体、ポリエチレンナフタレート、エチレンナフタレートの共重合体のいずれかを含んでなることを特徴とする請求項1に記載の積層フィルム。
- 積層フィルム中にシリコーン系化合物を0.01wt%以上10wt%以下含んでなることを特徴とする請求項1に記載の積層フィルム。
- アクリル系化合物、ポリエステル系化合物、ウレタン系化合物のいずれかを含んでなる、層の厚みが10nm以上300nm以下の樹脂層(C層)を少なくとも1層有することを特徴とする請求項1に記載の積層フィルム。
- 少なくとも片面におけるL*(SCI)が20以上35以下であり、L*(SCE)が2以上15以下であり、L*(SCI)/L*(SCE)が3以上17以下であることを特徴とする請求項1に記載の積層フィルム。
- A層を形成する樹脂が非晶性樹脂または融点が240℃以下の樹脂であり、積層フィルムが二軸延伸されてなることを特徴とする請求項1に記載の積層フィルム。
- 請求項1に記載の積層フィルムを含んでなる成形体。
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EP2581224B1 (en) | 2005-08-18 | 2014-12-17 | Toray Industries, Inc. | Laminate film and molded article |
CN102844182B (zh) * | 2010-04-27 | 2015-03-25 | 东丽株式会社 | 叠层膜和成型体 |
JP5259685B2 (ja) * | 2010-11-30 | 2013-08-07 | 日本プライ株式会社 | 着色積層フィルム |
CN102815061B (zh) * | 2012-08-31 | 2014-08-27 | 东莞市施乐威尔光电科技有限公司 | 一种高光黑亮复合膜及其制备方法 |
JP6059026B2 (ja) * | 2013-01-21 | 2017-01-11 | 恵和株式会社 | 射出成型用加飾シート、射出成型用シート積層体及び射出成型品 |
JP6357838B2 (ja) * | 2014-04-01 | 2018-07-18 | 日本ゼオン株式会社 | 複層フィルムの製造方法、並びに位相差フィルムの製造方法 |
JP5805339B1 (ja) * | 2015-03-13 | 2015-11-04 | 尾池工業株式会社 | 漆黒調積層体、及びその製造方法 |
KR102391053B1 (ko) * | 2016-06-14 | 2022-04-27 | 주식회사 쿠라레 | 흑색 필름 |
JP6629152B2 (ja) * | 2016-08-17 | 2020-01-15 | 株式会社ミマキエンジニアリング | 造形装置及び造形方法 |
WO2018128392A1 (ko) * | 2017-01-04 | 2018-07-12 | 도레이케미칼 주식회사 | 유리 질감의 폴리에스테르계 데코시트 |
JP6771425B2 (ja) * | 2017-05-10 | 2020-10-21 | 富士フイルム株式会社 | 積層構造体及び成形体 |
JP7306869B2 (ja) * | 2018-05-22 | 2023-07-11 | 旭化成株式会社 | 二色射出成形体 |
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- 2008-02-12 WO PCT/JP2008/052223 patent/WO2008099797A1/ja active Application Filing
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EP2111978A1 (en) | 2009-10-28 |
KR20090109135A (ko) | 2009-10-19 |
EP2111978A4 (en) | 2011-03-16 |
US8349439B2 (en) | 2013-01-08 |
US20100323159A1 (en) | 2010-12-23 |
WO2008099797A1 (ja) | 2008-08-21 |
CN101610901A (zh) | 2009-12-23 |
JPWO2008099797A1 (ja) | 2010-05-27 |
CN101610901B (zh) | 2015-04-01 |
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