Dual agent type clear water physical hair dyeing foam

[0031] The following specific examples are used to further illustrate the effects of the present invention.

[0032] Test methods and evaluation standards of each performance index:

[0033] (1) Standard for the degree of fineness of the foam: After mixing the first agent and the second agent, make a foam, apply it on the hair evenly, and observe the time when the foam disappears.

[0034] (2) Foam fineness standard: foam particle size <0.5mm, grade A; foam particle size ≥0.5mm, grade B; foam particle size ≥1mm, grade C.

[0035] (3) Standards for detecting skin irritation: After mixing components A and B, make a foam, smear it on the skin, and observe the irritation on the skin: within 5 minutes after applying the dyed foam, the skin has itching, dryness and other discomforts, it is judged The irritation is grade A; when the hair dye foam is applied, the skin has itching, dryness and other discomfort within 30 minutes and less than or equal to 60 minutes, and the irritation is judged to