Pay attention to the suitability of choosing ppe

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Depilatory

Depilatory

What is hair remover [1]

Depilatory agent refers to the substance added in depilatory غير مجاز مي باشدmetics to remove hair. The purpose of depilatory agent is to destroy disulfide bond and decompose hair.

Type of depilatory agent [2]

This kind of product is divided into physical depilatory and chemical depilatory.

I. physical hair remover

Physical depilatory agent, also known as depilatory agent, uses rosin and other resins to stick the hair to be removed. Then pull it out from the skin, which is equivalent to pulling out hair with tweezers. It is usually a wax product. When in use, melt the wax first, and then apply it to the part where the hair needs to be removed. After the wax solidifies, it is removed from the skin, and the hair adhered to the solidified wax is pulled out of the skin. Because this method is very uncomfortable to use, and if it is not used properly, the skin will be damaged, which is only more convenient than pulling out with tweezers, so there is little development at present.

II. Chemical depilant

Chemical depilatory agent softens the hair in a short time and can be easily erased by chemical action. Its action mechanism is also based on the fact that the hair cutin contains a large amount of bound cystine. The raw materials used are basically the same as those of Perm agent, but there are differences in the degree of action. During perm, only some disulfide bonds are required to change to achieve the purpose of curling, while during depilation, complete destruction is required to make the hair completely removed.

Chemical depilants are divided into inorganic depilants and organic depilants.

1. Inorganic hair remover

The commonly used inorganic depilants are alkaline sulfides of metals such as sodium, potassium, calcium, barium and strontium. Among them, sodium and potassium salts are more irritating than barium and strontium salts, so they are less popular than the latter. However, due to the high pH value of such depilatory agent (pH = about 11-12), it has great irritation; In addition, sulfide is unstable, easy to decompose and produce hydrogen sulfide to escape and reduce its activity. At the same time, it also has unpleasant smell, so stabilizer must be added to these substances.

2. Organic hair removal

The commonly used organic depilatory agent is calcium mercaptoacetate (hsch2coo) 2ca, which is a white crystalline powder with slight sulfide odor. Its solubility in water is 7% at room temperature and 27% at 96 ℃, and the pH value of the aqueous solution is about 11. Compared with inorganic depilatory agents, although it has a slow effect, it has a mild stimulating effect on the skin, almost no odor, and it is easy to add fragrance.

In addition to calcium salts, lithium, sodium, magnesium and strontium salts of ryukylacetic acid also have the same effect. Using more than two kinds of mercaptoacetate is beneficial to the stability of emulsified paste products.

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Guangzhou Biqian Daily-Used غير مجاز مي باشدmetics Co., Ltd.   , https://www.bqغير مجاز مي باشدmetic.com