Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 17, 2012
Accepted May 19, 2012

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Rheological behavior of sun protection compositions during formulation

Maria Karsheva^† Silviya Georgieva Silvia Alexandrova¹

Department of Chemical Engineering, University of Chemical Technology and Metallurgy, Sofia, 8 “Kl.Ohridski” Blvd., 1756 Sofia, Bulgaria ¹Ecole Nationale Supérieure en Génie des Technologies Industrielles, LaTEP (EA 1932), Rue Jules Ferry, BP 7511 64 075 Pau Cedex, France

mik@uctm.edu

Korean Journal of Chemical Engineering, December 2012, 29(12), 1806-1811(6), 10.1007/s11814-012-0068-2

Download PDF

Abstract

Rheological properties of cosmetic products are related to the products’ sensory attributes and to performance. In literature there is a lack of information on the influence of physicochemical interactions during processing of complex systems. This study is focussed on the interactions between the ingredients of cosmetic compositions during formulation in respect to their flow behavior. The rheological behavior of model cosmetic compositions based on polyvinyl alcohol solutions and containing natural plant extracts in glycerol and olive oil, UV screens (TiO2), synthetic UV absorber, emulsifier (Carbopol 2050), preservative (Bronopol) and fragrance was studied. The flow properties of compositions containing natural UV absorbers were compared to those of compositions with synthetic ones. All the compositions exhibited shear thinning rheological behavior that can be described by the power-law rheological model. It was proved that the emulsifier’s addition thickens the compositions; the addition of Bronopol leads to slight degree of thixotropy avoided by pre-shearing the samples for one minute. The fragrance addition in EtOH solution lowers the composition’s apparent viscosity; the addition of fine TiO2 as UV-screen even in quite tiny quantity of 0.2% mass increases the consistency of basic 10% PVA samples, lowering in the same time the flow index. The compositions containing glycerol extracts are more stable than those with olive oil extracts and they preserve their properties longer.

Keywords

Rheology Sun Protection Cosmetics Natural Plant Extracts

References

Tamburic S, All. Cos. & Toil. Mag., 115(10), 43 (2000)
Pieroni A, Quave CL, Villanelli ML, Mangino P, Sabbatini G, Santini L, Boccetti T, Profili M, Ciccioli T, Rampa LG, Antonini G, Girolamini C, Cecchi M, Tomasi M, Central-Eastern Italy,Journal of Ethnopharmacology., 91, 331 (2004)
Liu J, Hoffmann H, Colloid Polim. Sci., 283, 24 (2004)
Cetkovic G, Djilas S, Canadanovic-Brunet J, Tumbas V, Food Res. Int., 37(7), 643 (2004)
Silva B, Malva J, Dias A, Food Chem., 110(3), 611 (2008)
Hernandez MJ, Pellicer J, Delegido J, Dolz M, J. Dispersion Sci. Technol., 16(3-4), 283 (1995)
Dolz M, Gonzalez F, Herraez M, Pharmazie., 47, 351 (1992)
Dolz M, Gonzalez F, Delegido J, Herraez M, Proceedings XXIV Reunido Bienal de la R.S.E.F., Jaca, Spain (1993)
Chu JS, Amido GL, Weiner ND, Goldberg AH, Pharm.Res., 8(11), 1408 (1991)
Dolz M, Gonzalez F, Herraez M, Diez-Sales O, J. Pharm.Belg., 49(6), 509 (1994)
www.hazmap.nlm.gov.
www.alanwood.net/pesticites/bronopol.
Karsheva M, Georgieva S, Handjieva S, Proceedings of International Conference of Food Science and Technology, LIV, 1, 333 (2007)