JP6144903B2 - 電子レンジ対応シート及び電子レンジ対応シートの製造方法 - Google Patents
電子レンジ対応シート及び電子レンジ対応シートの製造方法 Download PDFInfo
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Description
基紙と、この基紙の一方の面に樹脂組成物の塗工液が塗工されることにより積層された樹脂層とを備え、
上記樹脂層が、複数の気孔を有している。
基紙の一方の面に樹脂組成物の塗工液を塗工することにより樹脂層を形成する工程を有し、
上記樹脂層を形成する工程で、上記樹脂層に複数の気孔を設けるべく樹脂層を形成する。
<電子レンジ対応シート1>
当該電子レンジ対応シート1は、図1に示すように、基紙2、この基紙2の一方の面に積層される樹脂層3、及び基紙2の他方の面に形成される印刷部4を有する。
電子レンジ対応シート1の製造方法は、樹脂層形成工程及び印刷工程を有する。
当該電子レンジ対応シート1は、基紙2の一方の面に樹脂層3を備えるため、この樹脂層3を内側(食品側)として食品を包装することにより、食品から出る油が当該電子レンジ対応シート1の外側に浸透することを樹脂層3によって的確に防止できる。また、この樹脂層3が、複数の気孔3aを有するため、この気孔3aから水蒸気が好適に放出される。このため、揚げ物やハンバーガー等の食品を包装状態のまま電子レンジにより加熱処理しても、油の浸透が抑制されつつこの気孔3aより水蒸気が好適に放出されるので、食品の表面への水滴の付着が抑制されることで食感が損なわれるおそれが少ない。
次に、第二の実施形態である電子レンジ対応シート21について説明する。なお、第二の実施形態の説明において、第一の実施形態と同一構成又は同一機能を有する部材等については同一符号を用いて、その詳細な説明を省略することがある。
本発明は、上記実施形態に限定されるものではなく、本発明の意図する範囲内において適宜設計変更可能である。
次に、当該電子レンジ対応シートの二つの実施例について説明するが、この実施例に本願発明は拘束されるものでない。
基紙として坪量25g/m2の耐油紙(商品名「EC耐油紙25」:天満特殊製紙株式会社製)を用いた。塗工剤(商品名「ハービルB−7」:第一塗料株式会社製)を水にて希釈して塗工液を調整し、この塗工液を上記基紙の片面にグラビア塗工し樹脂層を形成した。樹脂層に、複数の気孔を有する実施例1の電子レンジ対応シートを得た。
実施例1の電子レンジ対応シートの他方の面にも同様に塗工液を塗工し、この塗工液を乾燥硬化して実施例2の電子レンジ対応シートを得た。
比較例として、薄洋紙(商品名「HS21紙」:王子製紙株式会社製)に8μmの厚さのポリエチレンがラミネートされた物を用いた。
実施例1及び実施例2並びに比較例について油の遮蔽性試験を行った。この遮蔽性試験は、40℃の条件下で3gのサラダ油を樹脂層に滴下し、裏抜けに要する時間を測定した。
次に、実施例1及び実施例2並び比較例について透湿度試験を行った。この透湿度試験は、カップ法(JISZ0208)に準じて行った。
実施例1及び実施例2は、上記のように耐油度が好適な範囲を有しつつ、高い透湿度を有する結果となった。なお、比較例については、透湿度が低く、電子レンジで加熱した際にシート内面に水滴付着が発生した。
2 基紙
3 樹脂層
3a 気孔
4 印刷部
13 塗工液
14 グラビアロール
14a セル
15 容器
21 電子レンジ対応シート
22 基紙
23 樹脂層
23a 気孔
34 ベタロール
Claims (10)
- 基紙と、この基紙の一方の面に樹脂組成物の塗工液が塗工されることにより積層された樹脂層とを備え、
上記樹脂層が、複数の気孔を有し、
上記樹脂層が、樹脂層が食品に引っ付くことを防止するための無機粒子からなるフィラーを含有し、このフィラーが珪酸アルミニウムであり、
上記基紙の坪量が20g/m2以上50g/m2以下である電子レンジ対応シート。
- 透湿度が200g/m224hr以上15000g/m224hr以下である請求項1に記載の電子レンジ対応シート。
- 上記基紙の双方の面に上記樹脂層が積層されている請求項1又は請求項2に記載の電子レンジ対応シート。
- 上記樹脂層の主成分が、アクリル系樹脂、オレフィン系樹脂又はカルボニル基含有樹脂である請求項1、請求項2又は請求項3に記載の電子レンジ対応シート。
- 上記基紙が、耐油紙である請求項1から請求項4のいずれか1項に記載の電子レンジ対応シート。
- 上記基紙の一方の面に配設される印刷部をさらに備える請求項1から請求項5のいずれか1項に記載の電子レンジ対応シート。
- 基紙の一方の面に樹脂組成物の塗工液を塗工することにより樹脂層を形成する工程を有し、
上記樹脂層を形成する工程で、上記樹脂層に複数の気孔を設けるべく樹脂層を形成し、
上記樹脂層が、樹脂層が食品に引っ付くことを防止するための無機粒子からなるフィラーを含有し、このフィラーが珪酸アルミニウムであり、
上記基紙の坪量が20g/m2以上50g/m2以下である電子レンジ対応シートの製造方法。 - 上記基紙の一方の面に、表面に凹版を有するロールにより上記塗工液が塗工されることによって上記気孔が形成されている請求項7に記載の電子レンジ対応シートの製造方法。
- 微細凹凸形状を有する上記基紙の一方の面に上記塗工液が塗工されることにより上記気孔が形成されている請求項7に記載の電子レンジ対応シートの製造方法。
- 上記樹脂層が、上記塗工液が固形分換算において塗工量0.01g/m 2 以上20g/m 2 以下で塗工されることにより形成されている請求項7、請求項8又は請求項9に記載の電子レンジ対応シートの製造方法。
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JP2012270833A JP6144903B2 (ja) | 2012-12-11 | 2012-12-11 | 電子レンジ対応シート及び電子レンジ対応シートの製造方法 |
CN201380063829.XA CN104838068A (zh) | 2012-12-11 | 2013-12-06 | 适合微波炉的片材及适合微波炉的片材的制造方法 |
US14/650,739 US20150337497A1 (en) | 2012-12-11 | 2013-12-06 | Microwaveable sheet, and production method of microwaveable sheet |
PCT/JP2013/082885 WO2014092027A1 (ja) | 2012-12-11 | 2013-12-06 | 電子レンジ対応シート及び電子レンジ対応シートの製造方法 |
KR1020157018461A KR20150094725A (ko) | 2012-12-11 | 2013-12-06 | 전자레인지 대응 시트 및 전자레인지 대응 시트의 제조 방법 |
TW102145728A TWI532897B (zh) | 2012-12-11 | 2013-12-11 | A sheet suitable for a microwave oven, and a method for manufacturing a sheet suitable for a microwave oven |
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JPS55134057A (en) * | 1979-03-24 | 1980-10-18 | Toyo Boseki | Parting type film for packing food |
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JPH081083Y2 (ja) * | 1989-12-15 | 1996-01-17 | 株式会社日本デキシー | 電子レンジ調理用包装紙 |
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JP2001254293A (ja) * | 2000-03-07 | 2001-09-21 | Fukusuke Kogyo Co Ltd | ヒートシール性耐油耐水紙、その製造方法及び加熱用包装袋 |
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JP2002234092A (ja) * | 2001-02-07 | 2002-08-20 | Idemitsu Unitech Co Ltd | 包装材料用シーラント、包装材料および包装材料用シーラントの製造方法 |
JP2003191931A (ja) * | 2001-12-25 | 2003-07-09 | Toppan Printing Co Ltd | 紙製容器およびその製造方法 |
JP4120288B2 (ja) * | 2002-06-21 | 2008-07-16 | 凸版印刷株式会社 | 包装材料 |
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