摘要
【目的】探索杨树枝桠材的染色加工技术,以使杨木可以作为装饰材使用,满足人们对装饰材色彩多样性的需求,提高木材的使用价值和使用率。【方法】采用立木染色中的穿孔法,以活性染料质量分数(0.2%,0.3%,0.4%)、pH值(4,5,6)、染色时间(4,6,8d)和渗透剂质量分数(0.03%,0.05%,0.07%)为染色因素,进行了杨树枝桠材染色正交试验,以上染率和色差为评定标准,选择染色最优条件。【结果】上染率在染料质量分数为0.3%时达到最大值61.41%,色差在染料质量分数为0.4%时达到最大值16.29。上染率和色差在pH值为4时分别达到最大值69.33%,16.71,在pH值为6时有最小值44.19%,14.48;在染色时间为8d时分别达到最大值63.80%,15.53;在渗透剂质量分数为0.07%时分别达到最大值60.57%,15.51,在渗透剂质量分数为0.03%时有最小值57.74%,15.31。染色的最优条件为:染料质量分数0.4%,pH值4,染色时间8d,渗透剂质量分数0.07%。【结论】上染率和色差随着染色时间的增加或渗透剂质量分数的增大而增大,随着pH值的增大而减小,随着染料质量分数的增大色差增大,而上染率先增大后减小。
[Objective] Dyeing processing for living poplar branch was explored to make poplar useful as decorative material and improve the value and utilization of poplar wood. [Method] Perforation method was adopted among the stumpage dyeing. Optimal dyeing conditions were determined by orthogonal experi- ment according to four factors, mass concentration of reactive dyes （0.2 %, 0.3 %, and 0.4 %）, pH value （4,5,and 6）,dyeing time （4, 6, and 8 d） and penetrating agent concentration （0. 03%,0. 05%,and 0.07%）. [Result] The maximum dye-uptake was 61.41% at the dyeing concentration of 0.3%. The maxi- mum color difference was 16.29 at the dyeing concentration of 0.4%. The maximum dye-uptake and color difference were 69.33% and 16.71 at the pH of 4,respectively,while the minimum values were 44.19% and 14.48 at the pH of 6, respectively. The maximum dye-uptake and color difference were 63.80% and 15.53 at the dyeing time of 8 days, respectively. The maximum dye-uptake and color difference were 60.57% and 15.51 at the penetrating agent concentration of 0.07% ,respectively,while the minimum val- ues were 57.74% and 15.31 at the penetrating agent concentration of 0.03% ,respectively. The optimal conditions of dyeing：the dyeing concentration was 0.4%,the pH value was 4, the dyeing time was 8 days,and the penetrating agent concentration was 0. 07~. [Conclusion] Dye-uptake and color difference in- creased as the increase of dyeing time or concentration of penetrating agent, while they decreased as the in- crease of pH. As the increase of dyeing concentration, color difference increased, while dye-uptake increased followed by a decrease.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2014年第3期99-104,共6页
Journal of Northwest A&F University(Natural Science Edition)
基金
国家自然科学基金项目(30871972)
关键词
杨树枝桠材
活性染料
穿孔法
染色
poplar branch
reactive dyes
perforation method
dyeing
