Fluorescent compounds for treating hair
View Patent ↗Described herein is a hair treatment composition for the hair. The hair treatment composition includes one or more fluorescent compounds and one or more additional ingredients. The one or more fluorescent compounds each include a fluorophore, one or two permanent cations, and one to four incipient cations. The one to four incipient cations are pendant to the core structure and are neutral. The one or more fluorescent compounds enter the hair shaft after the hair treatment composition is applied to the hair. The hair treatment composition has a pH of from about 7 to about 11.
1. A hair treatment composition comprising a fluorescent compound of Formula V, Formula VIII, Formula X, Formula XII, Formula XIV, Formula XVI, Formula XXVI, Formula XXVII, homologs thereof, the partially or fully protonated forms thereof, and any combination thereof wherein these Formulas and homologs thereof have the following structures:
or a homolog thereof wherein one, two or three of the ethylenyl linkers bonded to the quaternary nitrogen are replaced by a propylenyl linker group;
or a homolog thereof wherein one, two, three, or four of the propylenyl linkers bonded to either or both of the quaternary nitrogens are replaced by an ethylenyl linker group;
or a homolog thereof wherein one or both of the propylenyl bonded to the benzoxazolyl groups are replaced by an ethylenyl linker group;
or a homolog thereof wherein the one or both of the propylenyl linkers bonded to the quinolinyl group or the propylenyl linker bonded to the benzothiazolyl group are replaced by an ethylenyl linker group;
or a homolog thereof p 1 wherein one or both of the ethylenyl linkers bonded to the oxygen are replaced by a propylenyl linker group;
or a homolog thereof wherein one, two, or three of the ethylenyl linkers bonded to the quaternary nitrogen are replaced by a propylenyl linker group;
or a homolog thereof wherein one or both of the propylenyl linkers bonded to the nitrogen of the indolyl groups are replaced by an ethylenyl linker group;
or a homolog thereof wherein one or both of the propylenyl linker bonded to the nitrogen of the benzothiazolyl group and the propylenyl linker bonded to the nitrogen of the pyridinyl group is replaced by an ethylenyl linker group; and,
wherein the hair treatment composition has a pH of from about 7 to about 11.
2. The hair treatment composition of claim 1 , wherein the one or more fluorescent compounds each comprise two incipient cations.
3. The hair treatment composition of claim 1 , wherein the one or more fluorescent compounds each has a molecular weight of less than about 1,000 g/mol.
4. The hair treatment composition of claim 1 , wherein the composition further comprises one or more oxidative dye precursors.
5. The hair treatment composition of claim 1 , wherein the composition further comprises one or more direct dyes.
6. The hair treatment composition of claim 1 , wherein the composition has a pH of from about 9 to about 11.
7. The hair treatment composition of claim 1 , wherein the composition has a pH of from about 7 to about 9.
8. The hair treatment composition of claim 1 , wherein the one or more fluorescent compounds is an optical brightening compound.
9. The hair treatment composition of claim 1 , wherein the hair treatment composition further comprises an oxidizing agent.
10. The hair treatment composition of claim 9 , wherein the oxidizing agent is selected from the group consisting of peroxides, perborates, percarbonates, persulfates, peroxidases and their substrates, laccases and their substrates, uricases and their substrates, oxidases and their substrates, and combinations thereof.