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Oil and Water blended without surfactants
This looks like pretty interesting technology that could impact the future of cosmetic formulating.
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15 Replies
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Now we are waiting for a new technology to replace also the preservatives…
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Yes, I suggested this a while back on the forum. I already began looking for parts, out of curiosity. Emulsions without emulsifiers. There’s a thought.
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@heraklit - that will be a much larger challenge. Disease causing microbes have had over 300,000 years to evolve. We’ve had about 150 years to figure out how to prevent them from killing us.
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great!
it is known that decreasing the size of the droplets or particles to the nano range one can create emulsions with low surfactant concentration (nanoemulsions). At laboratory scale one of the methods for producing nanoemulsions is ultrasound. Now they are able to apply that at industrial scale. I guess the droplet size is really tiny which guarantees the high stability. Amazing!
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@heraklit - cosmetic preservatives have gotten a hugely bad reputation, largely because of junk science, fear-mongering, and invalid association with food preservatives. Their benefits far outweigh their risks. Aside from marketing claims, it would be an enormous waste of time, effort and money to replace all preservatives. (Which is not to say that people won’t try. Marketing advantage is a powerful thing.)
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@liset ultrasound makes very tiny droplets but what about its sound?? in industrial scale how should address it? its really harmful for ear
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@nasrins: True. It is dangerous for hearing,
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get out of there
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@nasrins - I think it’s rather simple to shield people from the negative effects of ultrasonic production.
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what do u mean?
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@ Liset did you make a nanoemulsion with ultrasound yourself? just curious.
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@David Yes, I was producing nanoparticles from a nanoemulsion.
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@nasrins - earplugs.
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Ive made nano particles in the lab on a 2L scale. There is a slight ‘high frequency sound’ , and I can still hear
. On the larger scale you would use similar equipment (that doesn’t ) produce too much sound, and similar scale to the lab. You achieve this by recirculating the fluid through the ultrasound device and back into the batch vessel. minimizing the size of the ultrasound device is a good thing (allows for scalability, doesn’t require sound proofing, limits the forces produced) . -
the company we were working with was a uk company prosonix (they have a patented scale up technology).
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