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http://dx.doi.org/10.15230/SCSK.2018.44.3.267

Quantitative Analysis for the Amount of Coacervate in a Shampoo Formulation  

Song, Sang-Hun (E10 LG Science Park, LG Household & Health Care)
Park, Bongjeong (E10 LG Science Park, LG Household & Health Care)
Son, Seong Kil (E10 LG Science Park, LG Household & Health Care)
Choi, Soo Gyu (E10 LG Science Park, LG Household & Health Care)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.44, no.3, 2018 , pp. 267-275 More about this Journal
Abstract
This study attempts to quantify amount of coacervate generated in a formulation of shampoo with three methods using optical transmission, suspension in a glass tube, and centrifugation. For the correct data acquisition, each method has been optimized to estimate the amount of coacervate with minimum standard deviation. To simply and quantitatively estimate amount of coacervate, two formulations of shampoo were employed as a large or small amount of coacervate generated. Comparisons of the two formulations in repetitive measurement elucidated that the methods by the centrifugation efficiently can be utilized to estimate the accurate amount of coacervate. Additionally, the amount of coacervate by the centrifugation does not exhibit the difference of patterns before and after drying in a shampoo formulation with different conditioning polymers, and this suggests that the centrifugation is a superior method to compare amount of coacervate in liquid.
Keywords
coacervate; conditioning polymer; shampoo;
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