In the production of cosmetic creams, several key stages are involved, such as preparing raw materials, selecting emulsifiers, blending ingredients, controlling stirring speed and temperature, applying vacuum treatment, and conducting physicochemical evaluation and stability testing. Customers always ask: how does vacuum cream emulsifier mix cosmetic?
- Mixing and emulsifying process:
Following the formula instructions, various ingredients are added to the mixing equipment in proportion.
Typically, aqueous and oil-based components need to be preheated to the appropriate temperature separately before mixing.
During the emulsification process, the right stirring speed is crucial to ensure thorough mixing of the ingredients and the formation of a uniform emulsion.
- Mixing and temperature adjustment:
To achieve effective blending and emulsification of raw materials, it's crucial to maintain a relatively high stirring speed, typically around 50 revolutions per minute, which ensures thorough mixing of the different phases in the mixture.
During the cooling phase, the cosmetic manufacturing machine temperature and stirring speed shall be adjusted according to cosmetic formula and process request.
When the temperature falls below 45°C, and flavorings, preservatives, and other active ingredients are introduced, the stirring speed should be further decreased to approximately 20 revolutions per minute.
As the product reaches finished storage stage, the stirring speed should be gradually lowered to about 25 revolutions per minute. This adjustment helps in maintaining the stability of the emulsion as it heats up.
The entire mixing process should be operated under vacuum environment, which helps to eliminate air bubbles from the mixture, thereby enhancing the overall quality of the product while also improving its hygiene.
- Product evaluation and testing:
Following the completion of formulation mixing, it's necessary to perform a series of physicochemical tests on the product. These tests include measuring pH value and viscosity to ensure that the product meets the anticipated quality standards and performance criteria.