Chemist77
Forum Replies Created
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Ethocel 100 Premium from Dow and then check Croda
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No CHG Amit, cationic. Stick to Aqupec 701, one of the best I have used.
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Absolutely Perry
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Amit what was the order of addition, did you neutralize the carbomer first (which seems to be the case as you mention the breakdown of the gel)??? Haven’t done a gel myself with IPA but I don’t see any issues with IPA as there are tons of sanitizers with IPA in them.
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My god, why would you need to apply anything on to feed. THE BABIES ARE PROGRAMMED TO SUCK, BY NATURE.
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Marketing comes to mind here
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Still @Padmavathi that’s a lot for such format
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Check from Nouryon (formerly Akzo), they have some good guidance formulations. Check Ethomeens especially. Imosca has mentioned the exact phenomenon going on there right now.
And formalin, run for the hills!!!! -
That product brief by your customer shows that you need to take a step back and bid adieu to this business opportunity. My god those are some crazy numbers that can be accommodated in a shampoo formulation. Shampoo is supposed to get rid of oils, dirt, sebum, etc. and not infuse 10% oil into hair. Let the hair oils and hair serums do the job of oiling in my opinion.
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Neutralize the carbomer first and then add the PVP solution.
Polyquaternium -4 is a cationic, try with and without as carbomer is anionic. -
Make a 1% solution in one of the emollients and then add it to the formulation.
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Should be Ultrez 20/21 dispersed in water first. Neutralize with AMP-95, then slowly add the IPA to the gel while stirring/mixing. Also please check the neutralization ratios to get an optimum pH.
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The castor oil soap in dettol will crash the carbomer IMO.
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In that case, time to get a fresh sample.
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What if you just add polymer in water and try to neutralize it just to see if it still OK to be used??
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a) Order of addition is pretty important
b) In case Ultrez 20 failed, then stick to good old carbomer 940 which gives the highest viscosity. Clarity might be a tad low though.c) Why the polysorbate 80?? -
Increase the pH to neutralize the polymer, otherwise it won’t do the job it is supposed to I do. What does the TDS of that polymer says about the final pH adjustment????
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Ultrez 20 or Ultrez 21 should do the job, simple carbomer won’t fit in here.
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I suggest pre made available products, melt and pour.
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Method B and generally the surfactants’ concentration solubilizes the fragrance completely. Exceptions are always there though.
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@Bill_Toge Absolutely. I do formulate 4% active surgical scrub but for a regular sanitizer haven’t found anything on chlorhexidine.
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@Perry I guess it’s based on PCMX and then other ingredients like castor oil soap, IPA, etc.
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UCON Fluid 75-H-450 in the IL is somewhat responsible to reduce the stickiness.
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Try introducing polysorbate 20 if it can fit the cost, or SCS/SXS if those are available.
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Sorry to hijack the thread, but do you think a preservative with Benzyl alcohol may do the similar discoloration of dyes in hair gel as well @chemicalmatt