The invention belongs to the technical field of hair
dyeing and caring, and discloses a multi-color
plant hair
dyeing composition based on gallnut,
ferrous gluconate and natural
pigment and an application method thereof, the multi-color
plant hair
dyeing composition comprises
plant basic dye paste and a color developing agent solution; the plant basic dye paste comprises the following components in percentage by
mass: 5-15% of a gallnut extract containing
tannic acid, 0-5% of a plant natural
pigment extract, 0.3-1.0% of
xanthan gum / hydroxypropyl
fiber and 5-10% of
glycerol /
propylene glycol, the pH is regulated to 4-7, and deionized water is added to 100%; the color developing agent solution is prepared from the following components in percentage by
mass: 0.5 to 2.0 percent of
ferrous gluconate, 0.2 to 0.5 percent of
citric acid, 0.1 to 0.2 percent of EDTA (
Ethylene Diamine Tetraacetic Acid) disodium, 2 to 5 percent of
glycerol and 0.05 to 0.1 percent of essence, the pH is regulated to 4 to 7, and deionized water is added to 100 percent. According to the plant hair dye, a plant hair dye without conventional oxidizing agents and alkaline stimulation is realized,
citric acid and EDTA are added, it is guaranteed that Fe < 2 + > is not oxidized in the using process,
precipitation is prevented, and color development is lasting and uniform.