Being the method of appraising the familiar impression to the skin of the make-up charge which possesses

摘要

PROBLEM TO BE SOLVED: To provide a method for objectively evaluating fitting feeling of a cosmetic such as a cream and an essence having a yield value to a skin.;SOLUTION: The fitting feeling of the cosmetic having the yield value to the skin is evaluated by using a rheometer having a parallel-plate-type or cone-plate-type cell. Two types of cells A, B have different surface roughness on a sample contact surface of a plate, and are used for a measurement cell in the rheometer. A strain dependence of a dynamic loss tangent tanδ is measured with respect to the cosmetic. A strain dependence of a difference is obtained from the difference between tanδ value measured by using the cell A having small surface roughness and a tanδ value measured by using the cell B having large surface roughness. The maximum difference is determined within a range of a measured strain. If the maximum value is small, it evaluates that the fitting feeling to the skin is excellent.;COPYRIGHT: (C)2011,JPO&INPIT