Loving beauty is human nature, especially in this era of appearance, more and more people love beauty, and having beautiful hair is the dream of many people. Some people often bleach their hair, which results in burns. In this case, usually use iodine to disinfect and then apply ointment. If the symptoms cannot be relieved, it is best to go to the hospital in time and pay attention to keeping the skin dry and clean. What is the difference between dyeing and bleaching hair? 1) There is an essential difference between hair dyeing and hair bleaching. Hair bleaching is to use bleaching chemicals to wash away the original melanin in your hair. The main chemicals used in hair bleaching are bleaching powder and hydrogen peroxide. The effect and damage to hair vary according to the concentration of hydrogen peroxide. 2) Hair dyeing is to cover the original hair color with the target color, and hair dyeing uses dye cream. If the target color is dark, you can directly use the dye to dye your hair, but if the target color is light, in order to achieve the best effect, you need to use bleach to wash away the melanin in your hair before dyeing your hair. 3) Here, bleaching hair plays an auxiliary role compared to hair dyeing. Bleaching hair is more harmful to hair than dyeing it. Theoretically, bleaching hair will not lose color, but dyeing hair will fade over time. 4) To bleach your hair, you need to bleach it first. The color will change depending on the number of bleaching times, and the final color will be pure white. Of course, due to some technical reasons, it is impossible to have a whole head of white hair. A word of warning: this is extremely painful, so it is recommended that you consider carefully when bleaching your hair. 5) Bleaching hair removes natural pigments and replaces them with artificial pigments to make the colors more vivid and bright, which is harmful to the hair. It is mostly used to dye more exaggerated and obvious colors and to fade difficult colors, metallic colors, black oils, etc.! Dye, pure coloring. 6) Artificial pigments are infiltrated into the hair to make it more colorful. This is less harmful to the hair than bleaching, but it does not have the function of bleaching and is powerless on some hair that has been dyed with artificial pigments, metallic colors, or black! How to bleach hair with bleaching powder Check hair quality Hair quality diagnosis is a necessary step before bleaching hair. Only by checking the hair quality thoroughly can you know how to mix the bleaching powder and apply the lotion. No need to wash your hair Make sure your hair is dry before any hair dyeing. If you have washed your hair before bleaching, the dye will cause itching and discomfort when it contacts your scalp. If you do not wash your hair before any hair dyeing, you will rarely feel this. Dye preparation Normal mixing needs to be determined according to the quality of the hair. For example, the mixing ratio of Wella's bleaching powder can be adjusted from 1+1, 1+1.5, 1+2 to 1+3. Ultimately, it depends on the customer's hair quality and the color they want. The proportion of hydrogen peroxide milk The effect can only be achieved by mixing hydrogen peroxide and bleaching powder together, and the concentration of hydrogen peroxide is very important. After learning more about it, I found that most hairdressers use high-concentration hydrogen peroxide for hair treatment, but they forget a very important principle: during hair operations, the higher the concentration of hydrogen peroxide used, the greater the damage to the hair. Generally speaking, the desired color can be achieved by using 6% hydrogen peroxide with bleaching powder. In some individual cases, you can choose to use 9% or 12% commercial hydrogen peroxide, which is generally not used when doing hair. And it should be noted that only 6% hydrogen peroxide can come into contact with the scalp, others are not allowed! The degree of shallowness The so-called hair bleaching process does not mean to make the hair color as lighter as possible. It is not the case that the lighter the hair color, the easier it is to color. This is a misconception and is the main factor causing hair damage. If you want to dye your hair to a color that is more than 4 shades lighter than the base color, you only need to make the hair color 1-2 shades lighter than the target color. There is no need to make it the target color. If your hair has been dyed with dark artificial dyes and you want to continue to lighten the color, you will need to make the color of the bleached hair 1-2 degrees higher than the target color before you can color it. Therefore, during the bleaching process, lightening is a difficult technique to master and requires more practice and mastery. Correct operation According to the health and damage of the hair, we apply it on healthy hair first. This can reduce the damage caused by bleaching powder to damaged hair and reduce damage to the hair. Operation time After applying the bleaching powder, you should leave it on for 50 minutes. During this period, do not blindly extend or shorten the stay of the bleaching powder. Covering up will cause damage to the hair, especially during the storage process, you need to constantly observe the changes and reactions of the color. When the desired color is reached, wash the hair in time to reduce damage to the hair. Prepare enough Be sure to use enough bleaching powder. If the amount is too little or it is applied unevenly, it is most likely to cause spots, blemishes and uneven color. Care must be done after bleaching If you master the above knowledge about the hair bleaching process, you can get close to perfect bleaching effect. If hairdressers can teach customers reasonable home care steps, the effect will be even more perfect. Since there are a small amount of alkaline molecules and oxygen molecules left in the dyed hair, it is recommended to use acidic post-dye shampoo and conditioner. This will stop the residual substances from continuing to oxidize and damage the hair, making the hair look shiny and beautiful. |
<<: How to remove mold and mildew marks on leather shoes?
>>: What is the reason for belly fat
Many people will experience itchy and red and swo...
When exercising, many people will raise their leg...
Breast cancer will show obvious symptoms in its e...
Ovarian tumors are common gynecological malignanc...
I believe everyone is familiar with the mint plan...
I think most people are familiar with the term am...
Among malignant tumors of the gallbladder, gallbl...
Living in modern society, we have all kinds of th...
Abdominal mass is a common symptom in medicine. A...
Now more and more women are suffering from breast...
People need to use oil when cooking, but when goi...
In recent years, more and more people are sufferi...
Helping patients relieve mental work pressure, un...
Nowadays, people's living material standards ...
Many people tend to confuse trans fats with fat. ...