The article primarily delves into the optimal extraction process of lotus shell pigments through aqueous extraction and their dyeing performance on cotton fabrics.Employing a single-factor experimental approach,it establishes the best extraction conditions for lotus shell pigments and the optimal direct dyeing process.By testing the K/S value of dyed cotton fabrics,the study analyzes the dyeing effects of different metal mordants and their corresponding pre-mordant,same-mordant,and post-mordant dyeing methods.The results indicate that the optimum extraction time for lotus shell pigments is 120 minutes,the optimal extraction temperature is 80℃,and the ideal amount of lotus shell powder is 5 g/50mL.On cotton fabrics,the optimal dyeing conditions include a dye concentration of 200%,a temperature of 90℃,and a dyeing time of 70 minutes.Iron ion mordanting significantly influences the color of cotton fabrics,while post-mordanting is the most effective method for controlling color depth.The dry,wet rubbing,soap washing,and light fastness test values of all mordanted samples meet production requirements.
关键词
莲子壳/天然染料/棉织物/染色性能/颜色特征
Key words
lotus seed shell/natural dyes/cotton fabric/dyeing property/color features
维普
万方数据