The lipstick production machine you don’t know—three roll mill
The first stage: The pigment needs to be mixed with an appropriate amount of grease (the ideal ratio of pigment to grease is two parts grease to one part pigment), and then the mixture is ground through a three-roll mill to uniformly disperse the pigmented polymer.
The second stage: Add the uniformly dispersed pigment and grease mixture to the melted wax and remaining grease (a small amount of fragrance can also be added), mix, and pass through a three-roll mill for reprocessing to achieve the desired particle size (usually 20 microns) ). The three-roll mill is a very effective device for uniformly dispersing lipstick pigments.
The third stage: The lipstick needs to be formed and cooled in the mold.
The fourth stage: burn through the combustion cabinet to increase the surface gloss. Then carry out a series of exquisite external packaging, which is the lipstick you see.
The three-roll mill can not only be used in the manufacture of lipsticks but also cannot do without it in many industries, such as various paints, inks, pigments, plastics, cosmetics, soaps, ceramics, rubber, and other liquid slurries and paste-like materials. Grinding, the fineness reaches about 15μm.
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Source: Franli
This article address : The lipstick production machine you don’t know—three roll mill
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