Compared with direct dyeing, the color of the Bitter Melon Extract with post mordant has no obvious change. Except the light fastness is no more than grade 3, the other fastness is basically above grade 4, which is more reduced.
In addition to Capsicum Oleoresin components that can be colored, the yellow pigment also contains saffron acid with high medical value and high price, such as blood harmonizing, blood activating, fatigue eliminating, pain relieving and N-Acetylneuraminic Acid pressure reducing, which can be applied to the pharmaceutical industry.
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