Research on the color fastness to the dyeing of plant hair dyes
Plant hair dye is a hair dye that has attracted much attention and popularity in recent years.It is characterized by non-irritation,no toxic side effects,and can adjust the color and brightness of hair color,so that more and more consumers choose to use plant hair dye to dye their hair.The article introduces a comparative experiment on four plant hair dyes,namely henna,indigo,kapok,and walnut leaves,from three aspects:color effect,dyeing fastness,and water quality.The experiment adopted a completely random design method,randomly assigning plant hair dyes to different experimental and control groups,setting different hair dye concentrations and dyeing times to explore their effects on dyeing effect and color fastness.The experimental data were analyzed using SPSS software,and the comprehensive evaluation method was used to comprehensively evaluate the data.It is concluded that the dyeing effect and color fastness of hair dye are a pair of contradictions,and the balance between dyeing effect and color fastness needs to be weighed when choosing hair dye.At the same time,water quality is also an important factor in dyeing effect and color fastness.