What do you mean by dyeing and fading? The so-called fading is actually the process of removing pigment from hair, which is still different from bleaching and dyeing. Fading and fading are also different. Fading is fading, and fading is a process in hair dyeing.
What's the difference between fading and bleaching when dyeing hair? Fading, bleaching, decoloring and bleaching have similar general meanings. There is no uniform standard for these words, but they are called differently. But from a professional point of view, there are still some differences. Bleaching and bleaching are the same thing, that is, bleaching natural pigments and artificial pigments in hair. Fading is understood as using 0/00 to remove melanin and brown pigment from hair. Decolorization is also understood as bleaching hair.
Fading has a lot to do with fading cream, which is to fade some black and brown elements in hair by dyeing it. Fading is similar to fading, that is, the color dyed after washing hair fades, also known as fading. Fading and fading are completely different concepts.
What colors need to be lightened when the hair color is different from the target color? However, unlike bleaching and dyeing, which completely fades the pigment, fading only makes the pigment slightly lighter. If the chromaticity is less than 3 or the color is too dark, it needs to fade.
Dilute:
When dark color is dyed with light color, the difference between the primary color of hair and the target chromaticity is less than 3 degrees, which can be faded.
Fading can be used if the color is too dark or in order to avoid overlapping pigments;
Compared with washing and bleaching, fading is the easiest to control, with the least damage to hair, the slowest fading and even fading.
Fading is more suitable for damaged hair and healthy hair; Not suitable for anti-hair.
The fading agent is usually a light-colored dye paste or a fading paste.
Preparation method of desalting cream: desalting cream +H2O2= milky (1: 1)
The mixing degree of different dioxygen milk and whipped cream is as follows:
10Vol+ fading paste = 0.5-0.8 degrees.
20Vol+ fading paste = 1.5— 1.8 degrees.
30Vol+ decoloring paste = 2.5-2.8 degrees.
40Vol+ decoloring paste = 3.5-3.8 degrees.
Fading cream cannot dilute artificial melanin (black oil).
In practical application, the principles and methods of using fading, washing and bleaching are the same, but the difference is that fading cream can not remove artificial melanin (black oil), while bleaching powder can remove artificial melanin (black oil).
Principle of use: When all colors are dark and bright, when the difference between the primary color and the target * * * degree is too large, it is beyond the control range of molecular oxygen emulsion, so it is necessary to lighten the original * * * degree and approach the chromaticity required by the target color.
Judgment method: first look at whether the primary color is artificial melanin (black oil), if it needs bleaching;
Look at the difference between the primary color and the target color by several degrees, and use water washing method within 3 degrees and bleaching method within 4 degrees;
Finally, look at hair quality. If the difference is 3, the damaged hair should fade, the healthy hair should be washed and the resistant hair should be bleached.
Usage: judge whether it is full-length coating or segmented coating.
Full-length coating: under the premise of the same chromaticity
Step-by-step coating: first apply dark color, then apply light color.
No matter which painting method, you should leave the hair root 1-2 cm first to avoid painting on the scalp. Hair roots can be taken before washing.
Note: No matter fading, washing and bleaching, do not fade the original chromaticity beyond the target * * * degree.
Similarity: It is a technology to dilute natural pigments and artificial pigments, and it has no coloring function.