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final product separation at the market
Dear all,
I would really apreciate it if you could express your opinion. In the small production unit that I work, we have bought a new high sheer mixer(unfortunately not a silverson or something with regards). I tested it and seemed to work fine, so I passed in the production scale in liquid matte lipstick. Its a product that I have been producting for one year now with a lab homogenizer with upscaling capacity, with stability test,and none a complain from our clients since now.
after the microbiological test of the batch, I released it on the market in stores. 3 days later, a lot of returns anc complains started.
it seems that an oily colorless layer of some ingredient, is coming out of the packaging and dries out like a sticky glue. My guess is isododecane, or maybe some of the silsesquioxane or an other silicon of the formula.
Is it possible in a stabilized product, a change in the production equipment to bring such a disaster?
and an other question for whom has been worked with liquid matte, do you think that the fillling machine must be under medium heating(e.g 40 oC) and stiring, OR that ‘maltreats’ the product?
Thank you in advance for any thoughts or advice
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