Small-Scale Chinese Long-lasting hair dye Production: Workshop Formula, Ratios & Method
In short: Small-Scale Chinese Long-lasting hair dye Production: Workshop Formula, Ratios & Method. This entry documents a formula & ratios taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 2163 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
long lasting hair dyeYoung people are afraid of white hair, and some old people are also afraid of white hair. In fact, the difference between black and white hair is just a difference in pigment, and there is nothing to "appropriate" about it. However, it is human nature to love beauty, and people who often appear in public places will find it very unsightly to have silvery white hair. Therefore, every effort is made to dye the white hair on the head black, so hair dye becomes very popular. Hair dyes come in a variety of colors, and can dye your hair red, brown, black, or gold. Regardless of the color, if you use dyes to dye your hair, it will not fade for a long time. For example, if you use aluminum acetate, an ingredient for printing and dyeing cotton fabrics, to dye your hair, the pigment will become lighter over time, and the gray hair will return to its original shape. According to experience, if you use a formula containing silver nitrate and gallic acid to dye your hair, the melanin will remain unchanged for a long time.Recipe A:Silver nitrate1.5 ouncesDistilled water12 ouncesAmmonia waterAppropriate amountRecipe B:Pyrogallic acid2 beatsGallic acid2 beatsCologne water4 ouncesDistilled water …
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