三椏韌皮纖維製漿特性之研究

A Study on the Pulping Characteristics of Bast Fibers of Edgeworthia papyrifera

王國財(Kuo-Tsai Wang) ； 蔡忠勳(Chung-Hsiun Tsai) ； 游漢明(Han-Ming Yu)

《台灣林業科學》 12卷2期 (1997/06) Pp. 211-216

https://doi.org/10.7075/TJFS.199706.0211

摘要

本試驗以自大陸進口之三椏樹皮及林業試驗所太麻里分所栽植之三椏樹皮進行製漿試驗，製漿之方法有蘇打法、鹼性亞硫酸鈉法及以碳酸鈉為蒸煮藥品等三種，並由用鹼量及藥液濃度之變化來探討三椏樹皮之收率、卡巴值及解纖率。試驗結果顯示二種樹皮之製漿特性非常相似，樹皮之解纖率與藥液濃度具密切相關，即高用鹼量時未必有好的解纖情況，而是在適當的鹼濃度時，方可獲得良好的解纖，此種情況在鹼性亞硫酸鈉法及碳酸鈉法時尤為明顯。不同製漿法之紙漿收率受解纖率之影響，高收率係由於韌皮纖維解纖不良所致。在不同的用鹼量下，蘇打法及鹼性亞硫酸鈉法紙漿之卡巴值幾乎保持不變，以碳酸鈉為蒸煮藥液時，紙漿卡巴值則隨用藥量之增加而遞減。

關鍵字

三椏 ； 韌皮纖維 ； 製漿特性

並列摘要

Bast fibers of Edgeworthia papyrifera purchased from mainland China and the Taimali research station of TFRI were pulped with the soda process, the alkali sulfite process, and sodium carbonate liquor, respectively. The yield, the kappa number, and the defiberating ratio under various alkali charges and alkali concentrations were evaluated. It was shown that pulping characteristics of bast fibers from different sources are very similar. The pulping results suggest that the defiberating ratio of barks has more pronounced correlation with alkali concentrations than with alkali charges, especially in the alkali sulfite process and in cooking with the sodium carbonate liquor. The pulp yield of different processes was affected by the deliberating ratio. Higher pulp yield represents poor deliberation of the fibers. The kappa number of soda and alkali sulfite pulps remained nearly constant under various alkali charges. The kappa number decreased with increasing chemical charges when the bark was cooked with sodium carbonate liquors.

並列關鍵字

Edgeworthia papyrifera ； bast fiber ； pulping characteristics