Emulsion cosmetics production purification plant

Emulsion cosmetics production purification plant

Emulsion cosmetics are a type of cosmetics that use a large amount and are widely used in cosmetics. The ingredients are complex, the viscosity of each component in the production process is large, and the mass transfer and heat transfer are unstable. Even if the same formula is used, due to the addition of materials during operation...

Text label: Emulsion cosmetic purification pharmaceutical cleanroom, design and installation of clean pharmaceutical cleanroom

Emulsion cosmetic production purification plant

Emulsion cosmetics are a type of cosmetics that use a large amount and are widely used in cosmetics. The ingredients are complex, the viscosity of each component in the production process is large, and the mass transfer and heat transfer are unstable. Even if the same formula is used, the performance and stability of the prepared product will be different due to the different conditions such as feeding method, emulsification time, emulsification temperature, stirring method and speed during operation. According to different formulas and different requirements , Appropriate preparation methods should be used to obtain high-quality products. For the preparation of the water phase, after mixing the water-soluble components, water-soluble emulsifiers, etc., heating to 80-90 °C under stirring, maintaining sterilization for 20 minutes, and then cooling to 70-80 °C; if the formula contains water-soluble polymers, It should be pre-dispersed separately, dissolved in water, fully stirred at room temperature to swell evenly to prevent agglomeration, if necessary, it can be homogenized or heated to dissolve, add the water phase before emulsification, and avoid prolonged heating to avoid Cause viscosity change, in order to supplement the water volatilized during heating and emulsification, 3%-5% more water can be added according to the formula.

Preparation of oil phase, after mixing oil, fat, emulsifier and other oil-soluble components, heat to 70-75℃ under constant stirring condition to fully melt or dissolve evenly for use. Overheating and heating should be avoided. It is heated for a long time to prevent the oxidative deterioration of the raw material components. Oils, emulsifiers and preservatives that are easily oxidized can be added to the oil phase before emulsification, and the emulsification can be carried out after uniform dissolution. During the emulsification process, the addition method, addition speed, stirring conditions, emulsification temperature and time of the water phase and oil phase, and the structure of the emulsifier have a great influence on the shape and distribution of the emulsion particles; In the polymer system, the speed and time of homogenization should be strictly controlled to avoid excessive shearing, destroying the structure of the polymer, causing irreversible changes, and changing the rheological properties of the system. For example, the formulation contains microorganisms or heat-sensitive additives. Then add it at a lower temperature after emulsification to ensure its activity, but pay attention to its solubility. After the emulsification is completed, the emulsification system should be slowly stirred until it cools to near room temperature. The discharge temperature depends on the softening temperature of the emulsification system. It is suitable to be able to flow out from the emulsification pot. It can also be pumped out or pressed out with pressurized air; the cooling speed , scissors stress during cooling, terminal temperature, etc. have an impact on the particle size and distribution of the emulsifier system, and the optimal conditions must be selected according to different emulsification systems; the emulsified body after unloading should generally be stored and aged for 24H or several days. The filling machine can be used for filling in the future. The product must be evaluated for quality before filling, and the filling can be carried out only after the quality is qualified. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for cosmetic purification plants and clean workshops.

In the preparation of emulsification in cosmetic purification plants, in addition to controlling the stirring conditions, it is also necessary to control the temperature, including the temperature during and after emulsification; generally, the temperature of the oil phase is controlled to be 10-15°C higher than its melting point, while the temperature of the water phase is Slightly higher than the oil phase temperature, usually creams are emulsified at 75-95°C; it is best to heat the water phase to 90-100°C, maintain sterilization for 20 minutes, and then cool to 70-80°C for emulsification. When the W/O type emulsion is used, the temperature of the water phase is higher, and the volume of the water phase is larger at this time. After the water phase is dispersed to form an emulsion, as the temperature decreases, the volume of the water droplets becomes smaller, which is conducive to the formation of uniform and fine particles , if the temperature of the water phase is lower than the temperature of the oil phase, the oil phase may be solidified after the two phases are mixed, which will affect the emulsification effect; the effect of the cooling speed is also great, usually faster cooling can obtain finer particles, when the temperature is higher, Due to the strong Brownian motion, the small particles will collide with each other and merge into larger particles. On the contrary, when the emulsification operation is completed, the paste is immediately cooled rapidly, so that the small particles are frozen, so that the small particles collide and merge. The effect is weakened, but because the cooling speed is too fast, the high melting point wax will crystallize and precipitate, resulting in the destruction of the emulsion and the appearance of coarse particles in the product. Therefore, the cooling speed is best determined by experiment.

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