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PLEASE HELP - Gritty Conditioner
Please can someone offer some advice. When I make this formula in smaller batches it is perfect and creamy, but when I make bigger batches it become gritty upon cooling?
Base formula:
Water 89.00%Cetrimonium Chloride 3.00%Behentrimonium Chloride 1.00%Cetearyl Alcohol 2.00%Cetyl Alcohol 1.00%I have tried making the formula just with the individual surfactants but the same issue happens. I am wondering if I need better equipment to keep stirring whilst it cools as this can take a long time.I feel like I have so many questions about scaling up. Can someone advise me what equipment they use for commercial production and a method for manufacture as I feel that I am doing it wrong
Ps I am a qualified chemist although my experience is not in conditioners and I am finding it more challenging than I expected. Any advice is very welcome.
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6 Replies
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What temperature are you heating to? It sounds like something isn’t melting properly at the larger scale.
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In addition to what @ozgirl asked,
What mixer do you use?
What are the size of your samll and large batch?
What is the method? Phase A, B, C then mix or everything in one phase?
For how long do you mix small and large batch? -
Hi, sorry for the late reply. I thought I would get alerts and perhaps noone responded. I think it is right that something is not fully melted. I think it is melted but then as the batch cools one of the ingredients is setting again. I am heating to 75c. Is that enough? I am also using a stick blender following the phases recommendation. Mixing time does not seem to affect three outcome
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According to MakingCosmetics, Behentrimonium Chloride needs 85c to melt.
https://www.makingcosmetics.com/Behentrimonium_p_81.htmlI am not sure it is causing your problem because I never used cetrimonium chloride. I always use Behentrimonium C in combination with another emulsifier.
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There’s no way behentrimonium chloride fully melts at 75c. It needs 85C according to suppliers and around 95c as per my personal experience.
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Melt first and give some citric acid, make sure finish product slightly acidic to avoid gritty behentrimonium, you also need to avoid anionic which coagulate behentrimonium chloride
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