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Kaolin Mask
I have a kaolin clay mask formula, it has fatty alcohols, ethoxylated fatty alcohol, mineral oil, preservatives and fragrance with colorants. Its a bare minimum formula but holds good in viscosity as kaolin is around 20% and I am not using any other filler. My question is that why does the viscosity drop down after the addition of TiO2, I tried to jack up the viscosity by eliminating the ethoxylated fatty alcohol but to no avail. Is it the charge of TiO2 that is interfering with the viscosity??? Or I have to adjust the pH which is standard to TiO2 containing formulas, my pH hovers around 6.5 but definitely below 7. I have used a Sodium CMC as well for a thin film formation to provide a film platform for kaolin to have a uniform application. Any comments would be appreciated.
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