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Hair Spray, Two-Layer
hi,
I want to make a tow layers hair spray ( milky and clear).
I tried a lot but I do not know why it was not stable? after 1 hour it became 3 layers.
Whould you mind helping me abaut that?
thank you. -
17 Replies
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What is your formula? Please include all ingredients and percents.
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Thanks for your replay,
Cyclopentasiloxane 19%
Phenyl Trimethicone 3%
Argan oil 1%……….
Aqua
Sodium chloride 1%
Cetrimonium chloride 1.6
PEG-7 glyceryl cocoate 1%
Cocamidopropyl betaine 0.4
NaPCA 1 1
Silicone Quaternium-18,Trideceth-6 ,Trideceth-12 2%
Hydrolyzed Keratin PG-Propyl Methylsilanediol 1%
……….
Preservative 0.1 -
If you place a batch in a graduated cylinder and observe the relative quantities of the 3 layers then compare to your formula, you should be able to get a good idea of what’s happening. I suspect you have layers of vegetable oil, silicones, and water.
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Thanks for your replay,
I am going to check it.. But I do not know what equipment and machinery are used for this process? whould you please give me some information about that?
thank you. -
You never took basic chemistry class at school? Never did physics (measurement of an object’s density)? Google it.
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Mr. Belassi,
I think, you misunderstood.
As you suggested me : ( If you place a batch in a graduated cylinder and observe the relative
quantities of the 3 layers then compare to your formula, you should be
able to get a good idea of what’s happening. I suspect you have layers
of vegetable oil, silicones, and water)I checked that and my problem was solved. Now I want to produce this product in a pilot plant but I do not know what equipment and machinery are used for that?
by the way, I studied organic chemistry in MSc degree.
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You will need to talk to someone with large scale experience. Sorry I can’t help with that.
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@Perry : Whould you help me?
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@Belassi : Thank you…
@Perry : Would you mind helping me?
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That really depends on batch size and space available. See this discussion of equipment.
https://chemistscorner.com/cosmeticsciencetalk/discussion/comment/1041/ -
@Perry , @jerry :
I am going to manufacture a batch of two phases hair spray up to 500 kilos . I think, special equipment are used for that, So, I need more information about the manufacturing process and the required equipment. -
Seems to be a simple formulation in terms of processing so I suppose you can use a normal mixer. Eventually the batch is going to separate in 2 phases though while filling you make sure that the batch is continuously under mixing for favorable results.
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@chemist:
thank you for your reply,
for processing yes I agree with you, we can use a normal mixer but I do not know when I want to fill the bottles what should I do? so I think we have to use special mixer for that. -
at my old place we used to make and fill two-phase mouthwash; each phase was made and filled separately, as trying to fill the mixed product would have been far too complicated and impractical
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I did the same as Bill_Toge.
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I’m going to agree with Bill also - the chances for variability in phase volume when trying to fill a 2-phase product all at once are high. Fill each phase separately, and you won’t need special equipment either.
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the formula is ok, only add a emulsifier to the oil phase, al least 3 %, and you will get a pretty milky fase above, and the water fase is clear, the filling is not a problem , beacause this formula in the first separation times it takes a lot o time, so you only have to stirr while you fill
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