| 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（4，6，8 d）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8 d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8 d，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。 |
| 关键词: 杨树枝桠材 活性染料 穿孔法 染色 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目（30871972） |
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| Dyeing of living poplar branch by perforation dyeing method |
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XIONG Fu-quan,LIU Sheng-quan,YU Min
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| Abstract: |
| 【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 experiment 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 maximum 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 values 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 increased as the increase of dyeing time or concentration of penetrating agent,while they decreased as the increase of pH.As the increase of dyeing concentration,color difference increased,while dye uptake increased followed by a decrease. |
| Key words: poplar branch reactive dyes perforation method dyeing |
