Protein based sheet material for in vitro testing
AssigneeFujifilm Maanufacturing Europe B.B.
InventorsSebastianus Gerardus Johannes Maria Kluijtmans, Marinus Cornelis Van Zundert, Jan Bastiaan Bouwstra
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Abstract
The invention provides a sheet material that is of use as an equivalent to skin for in vitro testing of cosmetic ingredients and/or formulations. The sheet material comprises protein and a humidity control agent so that it is ready to use. Tests that can be performed on the sheet material are for example make up smearing, colour evaluation, sun protection factor measurements, UVA-protection, water resistance of cosmetic products, sunless tanning applications, etc.
Claims21
A protein based film comprising protein and a humidity control agent, the film having a humidity content between 10 wt % and 25 wt % based on the total weight of the film.
A solution for forming a film comprising:
- (a) from 5 to 25 wt % dissolved protein;
- (b) between 2 and 100%, based on the weight of the protein, of a humidity control agent;
- (c) between 0.1 and 20 wt %, based on the amount of protein, of a crosslinking agent;
- and,
- (d) surface roughness influencing solid particles in such an amount that between 0.01 g/m2 and 50 g/m2 of film is obtained.
Dependencies are inferred from the claim text.