毛竹竹片化学染色的工艺参数研究

摘要

In order to enrich the color of the bamboo and improve the application value of bamboo products, this article adopts the method of dyeing to the dyeing of bamboo.The technical parameters affecting dye uptake, including the pretreatment method of bamboo, dyeing temperature, dyeing time, different dyes, concentration of dye liquor and additives were studied.The experimental results showed that the bleaching pretreatment, acid scarlet and additives in favour of the improvement of the dye uptake.It was shown that dyeing temperature significantly affected the dye uptake.On the other hand, the percent of dye uptake gradually increased with the extension of dyeing until the proliferation balanced with the adsorption.With increasing of concentration, the dye uptake performed an earlier raised and later decreased state and the optimum concentration was 0.7%.%为了丰富竹片的颜色，提高竹产品的应用价值，采用染料染色的方法对竹片进行染色，探讨了前处理方式、染料种类、染色温度、染色时间、染液质量分数和助剂等对竹片染色效果的影响。结果表明，漂白、酸性大红、易渗剂10 mL等均较有利于竹片上染率的提高；染色温度对竹片上染率的影响极显著，随着温度的升高，上染率增加；随着染色时间的延长，竹片上染率呈逐步上升趋势；竹片上染率随着染液质量分数的增加呈现先升后降的趋势，质量分数约为0．7％时有最大上染率。较为优化的染色工艺：水浴温度控制在90℃左右，将经漂白的竹片置于质量分数为0．7％的酸性大红染液中水浴加热72 h，其间加入易渗剂10 mL。