Systems for custom coloration
Novel systems and methods for performing treatment (e.g., coloration) of keratinous fibers are disclosed. The methods and systems utilize one or more of a dispensing device which is configured to provide customized composition for treating keratinous fibers (e.g., a coloring composition), optionally formed from tablets; an optical reader, for obtaining sufficient characteristics of the keratinous fibers to make a realistic prediction of the outcome of a treatment (e.g., coloring treatment); a computational units for predicting an outcome of a treatment, optionally being interfaced with the dispensing device and for selecting a customized treatment; and tablet formulations which are useful in preparing customized composition for treating keratinous fibers. Further disclosed are rapidly disintegrating tablets for use in the preparation of compositions for treating keratinous fibers.
1. A solid formulation suitable for use in the treatment of keratinous fibers, the formulation being in a form of a tablet and comprising at least one water-insoluble superdisintegrant, and at least one active agent selected from the group consisting of a color imparting agent, an alkalizing agent, an oxidizing agent, and a thickening agent, said superdisintegrant being characterized by a water absorption ratio of at least 0.5.
2. A system for preparing a hair-coloring composition or precursor thereof comprising:
a. a plurality of tablet containers;
b. a plurality of tablets according to claim 1 disposed within each of the containers;
c. a tablet dispenser configured to dispense tablets from the tablet containers in accordance with at least one of (i) a hair coloring target and/or (ii) hair spectral data, the dispensing device configured to provide multi-container tablet combinations.
3. A method of acquiring spectral data from a plurality of aligned keratinous fibers defining an alignment axis and an azimuth reference plane that is the best plane defined by the keratinous fibers, the method comprising:
a. illuminating the plurality of aligned keratinous fibers by measurement beam(s) of light;
b. receiving light from the illuminated fiber(s) into a 1D or 2D array of photodetectors such that a majority of or a substantial majority of light received by the photodetectors is (i) first incident upon the keratinous fibers in a direction that is substantially zero-azimuth or 180-azimuth within a tolerance of at most 15 degrees (ii) subsequently is diffused or scattered by the fiber(s) to leave the fiber via an optical path that is substantially is perpendicular to the azimuth reference plane; and (iii) subsequently is received by the photodetector(s); and
c. analyzing the output of photodetectors to determine spectral data of the illuminated keratinous fibers.