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Patent Picks—Natural Cationic Emulsifiers, Repeat Sequence Proteins, Amides for Color Uniformity and More
By: Rachel L. Grabenhofer
Posted: November 13, 2012
page 4 of 4
Process for inhibiting dyed hair fibers from losing color during shampooing
US Patent Application 20120269756
Publication date: Oct. 25, 2012
Described here is a process for inhibiting dyed hair fibers from losing their color during shampooing involving contacting the dyed hair fibers with a composition containing: a) at least one polyamine compound having at least two amino groups; b) at least one anionic silicone; and c) optionally, at least one surfactant, and wherein a) is present in the composition in an amount sufficient to inhibit the dyed hair fibers from losing their color during shampooing.
Mixture of amides and cosmetic compositions comprising said mixture
European Patent EP2370398
Publication date: Oct. 17, 2012
Assignee: Kao Corp.
The present invention relates to a mixture of specific amides and to cosmetic compositions comprising said mixture, particularly hair dyeing compositions. In the field of hair dyeing compositions, there is a need for compositions containing improved leveling agents that make the color of the dyed fibers more uniform, and provide intense and chromatic shades of low selectivity and good fastness while offering good stability of the compositions, good ease of application leading to uniform and regular colorations of the hair, and a good cosmetic condition to the treated hair. The authors of the present invention have surprisingly found that the mixture of amides according to the invention can provide similar or improved rheological and leveling properties compared to the amides already known in the art.
Exploring the Frontiers of Research in Shampoo and Conditioner Science
Practical Modern Hair Science covers the pertinent issues related to surfactants and provides a detailed description of tests to substantiate claims. A sample of other areas covered in this book: Measuring color, color formulation, the effects of aging on hair, medical conditions affecting hair, and advances in hair styling written by an impressive list of hair science experts.Order today at Alluredbooks-Hair Science!