JP6275231B1 - 天然コルクフィルムの製造方法 - Google Patents
天然コルクフィルムの製造方法 Download PDFInfo
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- JP6275231B1 JP6275231B1 JP2016226934A JP2016226934A JP6275231B1 JP 6275231 B1 JP6275231 B1 JP 6275231B1 JP 2016226934 A JP2016226934 A JP 2016226934A JP 2016226934 A JP2016226934 A JP 2016226934A JP 6275231 B1 JP6275231 B1 JP 6275231B1
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- cork
- layer
- natural
- resin
- producing
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Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Textile Engineering (AREA)
- Ceramic Engineering (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Forests & Forestry (AREA)
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Abstract
Description
S20:繊維層形成ステップ
S30:前処理ステップ
S31:脱色ステップ
S32:洗浄ステップ
S33:乾燥ステップ
S40:樹脂層形成ステップ
S50:コーティング層形成ステップ
S60:第1サンディングステップ
S70:第2サンディングステップ
10:天然コルクフィルム
11:コルク層
12:第1接着層
13:繊維層
14:第2接着層
15:樹脂層
16:第3接着層
17:コーティング層
Claims (14)
- 用意された天然コルク材料をスライシングして薄膜のコルク層を形成するコルク層形成ステップと、
前記コルク層形成ステップで形成されたコルク層の一面に繊維シートを付着させて繊維層を形成する繊維層形成ステップと、
前記コルク層の変色防止のために、前記繊維層形成ステップで形成された前記コルク層と前記繊維層との積層体を前処理する前処理ステップと、
前記前処理ステップを経た前記繊維層に樹脂シートを付着させて樹脂層を形成する樹脂層形成ステップとを含み、
前記前処理ステップは、
脱色剤を用いて前記積層体の前記コルク層を脱色する脱色ステップを含むことを特徴とする天然コルクフィルムの製造方法。 - 前記コルク層形成ステップにおいて、
前記コルク層の厚さは、0.1mm以上1.0mm以下であることを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - コルク層形成ステップは、
天然コルクの木から採取されたコルクを縦方向または横方向に剥離して前記天然コルク材料を用意することを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - コルク層形成ステップは、
天然コルクの木から採取されたコルクを粉砕してコルクチップを形成した後、前記コルクチップとバインダーとを混合圧着して前記天然コルク材料を用意することを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - 繊維層形成ステップにおいて、
前記繊維層は、前記繊維シートを接着剤で付着させるか、熱圧着方式で付着させて形成されることを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - 前記脱色剤は、
過酸化水素希釈液、またはアンモニアが添加された過酸化水素希釈液であることを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - 前記前処理ステップは、
前記脱色ステップで脱色した前記積層体を洗浄する洗浄ステップと、
前記洗浄ステップで洗浄された前記積層体を乾燥する乾燥ステップとをさらに含むことを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - 樹脂層形成ステップにおいて、
前記樹脂層は、前記樹脂シートを接着剤で付着させて形成されることを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - 樹脂層形成ステップにおいて、
前記樹脂層は、前記樹脂シートを熱圧着方式で付着させて形成されることを特徴とする請求項1に記載の天然コルクフィルムの製造方法。 - 前記熱圧着方式は、
ロールプレス方式で行われるが、
摂氏150度以上250度以下の温度条件、0.1MPa以上5MPa以下の圧力条件、および0.5m/min以上2m/min以下の移動速度の条件下で行われることを特徴とする請求項9に記載の天然コルクフィルムの製造方法。 - 前記繊維層形成ステップを行った後、前記前処理ステップを行う前に、前記繊維層形成ステップを経た前記コルク層の他面をサンディング処理する第1サンディングステップをさらに含むことを特徴とする請求項1に記載の天然コルクフィルムの製造方法。
- 前記前処理ステップを行った後、前記コルク層の他面をサンディング処理する第2サンディングステップをさらに含むことを特徴とする請求項1に記載の天然コルクフィルムの製造方法。
- 第2サンディングステップは、
前記コルク層の厚さが0.05mm以上0.5mm以下の範囲となるように行われることを特徴とする請求項12に記載の天然コルクフィルムの製造方法。 - 前記前処理ステップを行った後、カラー樹脂または透明樹脂を接着剤や熱圧着で付着させるか、カラー塗料または透明塗料を塗装してコーティング層を形成するコーティング層形成ステップをさらに含むことを特徴とする請求項1に記載の天然コルクフィルムの製造方法。
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