摘要
探讨了竹沥液在粉单竹APMP浆返黄过程中的影响。结果发现,粉单竹压出竹沥液后,APMP法所制未漂纸浆白度可提高2.57个百分点,漂白纸浆白度提高1.04个百分点;经紫外光照加速老化,压出竹沥液后,APMP竹浆返黄程度降低。对竹浆原料进行分析发现,压出竹沥液后竹子原料的抽出物含量有所下降。对返黄竹浆的水抽出物进行研究发现,随返黄程度的增加,水溶液中溶出的物质增多,脱除竹沥液可减少竹浆中的有色物质。压出竹子中的竹沥液可以提高竹子化机浆的白度,降低竹浆的返黄程度。
The effect of succus bambusae on yellowing of bambusa chungii APMP pulp was investigated. By removing succus bambusae,the brightness of APMP pulp and bleached pulp was improved by 2.57% ISO and 1.04%ISO respectively. After UV irradiation,the yellowing trend of the APMP pulp was also decreased. The extractives content of bamboo material was reduced. The study of yellowing pulp＇s water extractives indicated that more dissolved substances were released with the increasing of yellowing,and the colored matters were decreased by removing bambusa chungii. The result showed that the removal of succus bambusae could improve the brightness of APMP pulp,and reduce yellowing.
出处
《中国造纸学报》
CAS
CSCD
北大核心
2010年第2期22-26,共5页
Transactions of China Pulp and Paper
基金
高等学校博士学科点专项科研基金"高得率竹浆中木素和非木素组分的发色
返色机理与生物控制研究"(20070593005)的资助
关键词
竹沥液
APMP竹浆
返黄
succus bambusae
APMP bamboo pulp
yellowing
