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Research on the Application of Wikstroemia Bast in Handmade Paper |
Received:June 21, 2020 |
DOI:10.11980/j.issn.0254-508X.2020.10.007 |
Key Words:handmade paper Wikstroemia pulping process paper characteristics |
Fund Project:国家重点研发计划“有机质可移动文物价值认知及关键技术研究”项目(2019YFC1520300);国家社会科学基金重大项目“古籍保护学科建设与基础理论研究”(19ZDA343)。 |
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Abstract:With reference to the traditional papermaking process, the bast of Wikstroemia plants from Quzhou Zhejiang Province, was picked for pulping experiment in laboratory. Pulping was carried out at atmospheric pressure and 100℃ with sodium carbonate, sodium hydroxide and lime as cooking agents, respectively. The pulp was made into sheets, and the physical and chemical properties of the paper were tested to investigate the pulping process and characteristics of the Wikstroemia bast. The results showed that when using NaOH (1%, 0.5~2 h) or Na2CO3 (2%~4%, 4~16 h) in pulping, and after 40000 r dispersion, 60%~70% of pulp yield could be obtained. Among the paper obtained from the experiment, the highest tensile index was 124.7 N·m/g (NaOH cooking agents); the Hunter whiteness was 66.8~73.9, the color was slightly yellow, and the pH value was between 6.95 and 8.69. After the thermal aging process, the stability of the surface pH value, hunter whiteness and folding endurance of the paper was better than that of the broussonia paper. Using a mild alkaline cooking agent to cook the material for a long time (NaCO3 2%, 8 h) under normal pressure could obtain Wikstroemia with good strength and durability more stably and safely. Wikstroemia phloem fiber was relatively thin, which was an ideal raw material for making high-quality handmade paper. |
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