JP2022095403A - 剥離紙原紙、剥離紙、及び粘着テープ、並びに剥離紙原紙の製造方法 - Google Patents
剥離紙原紙、剥離紙、及び粘着テープ、並びに剥離紙原紙の製造方法 Download PDFInfo
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Abstract
Description
紙基材と、前記紙基材の表面の少なくとも一部に積層され、(A)スチレン系樹脂と、(B)ガラス転移温度(Tg)が100℃以上である樹脂とを含む塗布層と、を含む、剥離紙原紙である。
(2)
前記(B)成分が、オレフィン系樹脂である、(1)に記載の剥離紙原紙である。
(3)
前記(A)成分が、スチレン-オレフィン系樹脂、スチレン-アクリル系樹脂、及びスチレン-メタクリル系樹脂からなる群より選ばれる少なくとも1つである、(1)又は(2)に記載の剥離紙原紙である。
(4)
前記(A)成分100質量部に対して、前記(B)成分40質量部以上200質量部以下を含む、(1)~(3)のいずれかに記載の剥離紙原紙である。
(5)
(1)~(4)のいずれかに記載の剥離紙原紙と、前記剥離紙原紙の前記塗布層の表面の少なくとも一部に積層された剥離剤層と、を含む、剥離紙である。
(6)
前記剥離剤層の表面は、JIS P 8155に準拠した平滑度が1050秒以上である、(5)に記載の剥離紙である。
(7)
前記剥離剤層の表面は、JIS B 0601に準拠した算術平均粗さ(Ra)が0.80μm以下である、(5)又は(6)に記載の剥離紙である。
(8)
テープ基材と、前記テープ基材の表面の少なくとも一部に積層された粘着剤層と、前記粘着剤層の表面のうち、前記テープ基材と反対側の表面に積層された(5)~(7)のいずれかに記載の剥離紙と、を含む、粘着テープである。
(9)
紙基材の表面の少なくとも一部に、ラテックスである(A)スチレン系樹脂と、(B)ガラス転移温度(Tg)が100℃以上である樹脂とを含む塗布液を塗布して、塗布層を形成する工程を含む、剥離紙原紙の製造方法である。
(A)成分
・「スチレンブタジエン1」(スチレン-ブタジエン系ラテックス樹脂、日本エイアンドエル社製、「スマーテックスSN-309R」、Tg=-3℃)
・「スチレンブタジエン2」(スチレン-ブタジエン系ラテックス樹脂、日本エイアンドエル社製、「スマーテックスSR-102」、Tg=21℃)
・「スチレンアクリル1」(スチレン-アクリル系ラテックス樹脂、ヘンケルジャパン社製、「アクエンスBC900F」、Tg=-7.8℃)
・「PVA」(ポリビニルアルコール、日本酢ビ・ポバール社製、「Jポバール AM-20」、Tg=76℃)
(B)成分
・「オレフィンエマルション1」(ポリオレフィン系エマルション、ユニチカ社製、「アローベースDC-1010」、Tg=125℃)
・「オレフィンエマルション2」(ポリエチレン系エマルション、東邦化学工業社製、「ハイテックE-6700」、Tg=130℃)
・「オレフィンエマルション3」(ポリエチレン系エマルション、東邦化学工業社製、「ハイテックE-6314」、Tg=126℃)
・「オレフィンエマルション4」(ポリエチレン系エマルション、東邦化学工業社製、「ハイテックE-8237」、Tg=60℃)
11:紙基材、
12:塗布層、
20:剥離紙、
21:剥離剤層、
30:粘着テープ、
31:テープ基材、
32:粘着剤層
Claims (9)
- 紙基材と、
前記紙基材の表面の少なくとも一部に積層され、(A)スチレン系樹脂と、(B)ガラス転移温度(Tg)が100℃以上である樹脂とを含む塗布層と、
を含む、剥離紙原紙。 - 前記(B)成分が、オレフィン系樹脂である、
請求項1に記載の剥離紙原紙。 - 前記(A)成分が、スチレン-オレフィン系樹脂、スチレン-アクリル系樹脂、及びスチレン-メタクリル系樹脂からなる群より選ばれる少なくとも1つである、
請求項1又は2に記載の剥離紙原紙。 - 前記(A)成分100質量部に対して、前記(B)成分40質量部以上200質量部以下を含む、
請求項1~3のいずれか一項に記載の剥離紙原紙。 - 請求項1~4のいずれか一項に記載の剥離紙原紙と、
前記剥離紙原紙の前記塗布層の表面の少なくとも一部に積層された剥離剤層と、
を含む、剥離紙。 - 前記剥離剤層の表面は、JIS P 8155に準拠した平滑度が1050秒以上である、
請求項5に記載の剥離紙。 - 前記剥離剤層の表面は、JIS B 0601に準拠した算術平均粗さ(Ra)が0.80μm以下である、
請求項5又は6に記載の剥離紙。 - テープ基材と、
前記テープ基材の表面の少なくとも一部に積層された粘着剤層と、
前記粘着剤層の表面のうち、前記テープ基材と反対側の表面に積層された請求項5~7のいずれか一項に記載の剥離紙と、
を含む、粘着テープ。 - 紙基材の表面の少なくとも一部に、ラテックスである(A)スチレン系樹脂と、(B)ガラス転移温度(Tg)が100℃以上である樹脂とを含む塗布液を塗布して、塗布層を形成する工程を含む、
剥離紙原紙の製造方法。
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