JP6384753B2 - 木質成形体の製造方法 - Google Patents
木質成形体の製造方法 Download PDFInfo
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- JP6384753B2 JP6384753B2 JP2014151376A JP2014151376A JP6384753B2 JP 6384753 B2 JP6384753 B2 JP 6384753B2 JP 2014151376 A JP2014151376 A JP 2014151376A JP 2014151376 A JP2014151376 A JP 2014151376A JP 6384753 B2 JP6384753 B2 JP 6384753B2
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
Description
12a 突板層 12b 基材層
14 クリア層 16 意匠面
30 樹脂含浸木材 30a 樹脂含浸突板材
30b 樹脂含浸基材層形成用木材 32 樹脂含浸紙シート
46、80 加熱プレス装置 48 成形用金型
50 下型 52 上型
54 凹所 56 キャビティ面
74 成形キャビティ 82 変形阻止部
Claims (3)
- 表面が意匠面とされた木質基材と、該木質基材の意匠面上に一体的に積層形成された透光性を有するクリア層とを有する木質成形体であって、メラミン樹脂及び/又はユリア樹脂からなる熱硬化性樹脂材料が含浸された木質材料を加熱・加圧することによって、圧縮せしめつつ、流動させて、賦形する流動成形操作により、前記木質基材が形成されてなると共に、前記クリア層が、植物繊維にて構成され且つメラミン樹脂及び/又はユリア樹脂からなる熱硬化性樹脂材料が含浸された繊維シートを、前記流動成形操作に際して前記木質材料と共に加熱・加圧することにより、透明化して、形成されている木質成形体を製造する方法にして、
前記熱硬化性樹脂材料が含浸せしめられて、繊維細胞間の水素結合が切断されてなる未硬化の木質材料と、前記植物繊維にて構成され且つ前記熱硬化性樹脂材料が含浸された未硬化の繊維シートとを、それぞれ準備する工程と、
それら準備されたそれぞれ未硬化の木質材料及び繊維シートを、該繊維シートが前記意匠面を与える成形キャビティ面側に配置されるようにすると共に、該木質材料が該繊維シート上に積層配置された状態において、成形キャビティ内に収容する工程と、
該成形キャビティ内において、前記木質材料を加熱・加圧することにより、該木質材料を流動させながら、前記繊維シートとの積層方向において圧縮して賦形する流動成形操作を実施すると共に、該繊維シートを加熱・加圧する工程と、
前記木質材料と前記繊維シートとが加熱・加圧された状態下で、該木質材料中の含浸樹脂材料を硬化させると共に、該繊維シート中の含浸樹脂材料を硬化させて、該繊維シートを透明化することにより、前記成形キャビティ内で、前記木質基材と前記クリア層とを一体的に形成する工程と、
を含むことを特徴とする木質成形体の製造方法。 - 前記流動成形操作が、100〜200℃の温度と前記熱硬化性樹脂材料の含浸された木質材料の比重が1.3以上となる圧力を作用させる加熱・加圧条件下において、実施される請求項1に記載の木質成形体の製造方法。
- 前記繊維シートに、前記熱硬化性樹脂材料と共に、更に、着色剤、耐光剤、紫外線吸収剤、熱吸収剤、及び酸化防止剤からなる群より選ばれた少なくとも1種よりなる添加剤が含浸せしめられることにより、前記クリア層が、該添加剤を含んで形成されている請求項1又は請求項2に記載の木質成形体の製造方法。
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