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AssigneeL'oreal
InventorsJean-Christophe Simon, Nathalie Jager-Lezer
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The invention relates to a process for the manufacture of a colored make-up cosmetic composition which makes it possible to produce a transparent or translucent colored coat on the skin, lips or superficial body growths, comprising the following successive steps: (1) selecting a cosmetically acceptable base having bulk opaqueness, translucency or transparency, (2) preparing at least one series of samples of this cosmetic base, each series comprising increasing amounts of a coloring agent dissolved or dispersed in the cosmetically acceptable base, (3) spreading each of the samples of the one or more series over a transparent slide having a recess with a depth of 10 μm, (4) measuring, for each of the samples of the one or more series, the transmission of the layer thus formed at the wavelength corresponding to the maximum of one of the absorption or scattering peaks (λmax) of the coloring agent, (5) drawing a calibration curve by plotting the values of the transmission at λmax as a function of the concentration of the coloring agent, (6) selecting, from the calibration curve thus obtained, a concentration of the coloring agent corresponding to a transmission at λmax of between 20% and 80%, and (7) incorporating at least one coloring agent from at least one series, at the concentration selected in step (6), in a cosmetic base in the liquid state identical to or different from that used in step (1), and to the cosmetic compositions obtained according to this process.
A process for making a colored make-up cosmetic composition which produces a transparent of translucent colored coat on at least one of the skin, lips and superficial body growths, comprising the following successive steps:
A colored make-up cosmetic composition with controlled transmission prepared according to a process comprising the following successive steps:
Dependencies are inferred from the claim text.
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Obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds: polyamides
From algae, fungi, lichens or plants; from derivatives thereof: fungi, e.g. yeasts
Angiosperms [Magnoliophyta]: magnoliopsida [dicotyledons]
Angiosperms [Magnoliophyta]: liliopsida [monocotyledons]
Term ended 1 Jul 2022 (estimated)
The present invention relates to a process for the manufacture of colored make-up cosmetic compositions with controlled transmission and to the compositions obtained by this process.
The contribution of color to the skin, lips and superficial body growths, in particular the hair, nails and eyelashes, has always been an important subject of research in the cosmetics field and very particularly in the field of make-up.
This contribution of color is generally carried out in the form of white or colored pigments, optionally in combination with dyes, in cosmetic bases, giving rise to covering colored coats (lipstick, mascara, eye shadow, eyeliner, nail varnish, foundation) or semitransparent colored coats (foundation, eye shadow, lipstick, nail varnish), the desired effect generally being the production of an intense color or the masking of underlying imperfections.
Anhydrous lipstick with an opaque base Oxypropylenated beeswax 14.5% Microcrystalline wax 3% Oxypropylenated lanolin wax 2% Sesame oil 10% Arara oil 18% Lanolin 20% Acetylated lanolin 6% MMB Red 33/3 complex1 0.2% (coloring active material) Oleyl erucate q.s. for 100%
All the percentages are understood to be by weight.
MMB Red 33/3 complex, sold by Phytocos and denoting the mixture: disodium salt of fuchsin acid d/lysine palmitate-myristate/dipropylene glycol/benzoic acid/phenoxyethanol/3% solution of D&C Red No. 33 (CI: 17200)/preservatives: methyl, butyl, ethyl, propyl p-hydroxybenzoate.