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Detergent resistance to cold
Hello,
I’m working on low budget formula for laundry gel.Ingredients are:
- SCS 5%
- APG 10%
- chelating agent GLDA 10%
- EO 0.1%- citric acid to pH 11
When I test it at 4°C, it becomes overnight almost solid and opaque white. At room temperature it becomes again clear after 2 hours. I know it is common problem with SCS, but do you have any recommendation how to prevent this? Or at least make this process slower?
I can’t use any ethoxylates and ingredients should be 100% natural derived.
Thank you very much for any advice!
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2 Replies
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Hi! Your formula could actually be more into budget (APG is quite expensive to be used as main surfactant). Also, why do you add so much GLDA? If you want not only chelation (you don’t need more than 0.1-0.2% -or 0.5% to be extremistic- as 100% active matter) but secondary detergency, then adding a citrate could be a cheaper option (there are few studies about similar combos).
Now, to your question, you could add a third component to prevent that from happening, so you have a more mixed micellar system: either CAPB or an amine oxide (they could even replace part of your APG). They both have higher interaction with SCS and might prevent what you’re experiencing.
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Thank you very much for the useful info 🙂 I will try to replace the most of GLDA with citrate, I hope the viscosity stays the same.
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