My friend, industrial law is a complete set of technical information, and the essay is at least a booklet of 100 thousand words; In terms of the least value, you have to sell 1000 yuan or more, right? How is it possible to give a simple answer for free on Baidu Know?

Give you a basic principle:

1, raw materials: various vegetable oils and animal oils, which are used in proportion according to the degree of hardness; Compared with caustic soda, flake caustic soda and sodium hydroxide, soda ash is added according to the saponification value of oil.

2, reaction: caustic soda+grease-to generate sodium fatty acid, this process needs to be heated, slightly boiling, at least 12 hours!

3. Salting out: the mixture of sodium fatty acid and glycerol obtained by the reaction is precipitated with concentrated brine, the solution above contains glycerol, and the white paste precipitate below is soap.

4. Molding: the paste soap is injected into the mold and cooled to become solid soap.