Dyeing properties of viscose fabric with natural curcumin
Extracted curcumin is used to dye viscose fabrics,and the color difference,evenness and color fastness of the dyed fabrics are tested to study the feasibility of curcumin dyeing of viscose fabrics.The results show that the optimal concentration of curcumin for dyeing viscose fabric is 90～110 mg/L,dyeing at 80 ℃ for 50 min with pH value of 5.The dyed fabrics is yellowish to green,and the color fastness to soap washing,friction resistance and artificial light are all at levels 3～4,which can meet the requirement of dyed fabric.It is concluded that it is feasible to dye viscose fabric with curcumin.
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