Hair-dyeing agent
AssigneeFuji Photo Film Co., Ltd.
InventorKatsumi Kobayashi
Life of this patent
Estimating the term…
Abstract
A hair-dyeing agent, which contains at least one compound represented by formula (1) or (2) as a dye: wherein X1 and X2 each are an oxygen atom, nitrogen atom, sulfur atom, or dialkylmethylene group; R1, R2, R3, R4, R5, R6, R7, and R8 each independently are a hydrogen atom or substituent; M1 and M2 each are a counter ion to balance the charge of the molecule; and m1 and m2 each are a number of 0 or more necessary to neutralize the charge of the molecule.
Claims14
A hair-dyeing agent, comprising at least one compound represented by formula (1) as a dye:
- wherein X1 represents an oxygen atom, a nitrogen atom, a sulfur atom, or a dialkylmethylene group;
- R1, R2, R3, and R4 each independently represent a hydrogen atom or a substituent;
- M1 represents a counter ion to balance the charge of the molecule;
- and m1 denotes a number of 0 or more necessary to neutralize said charge of the molecule.
A hair-dyeing agent, comprising at least one compound represented by formula (2) as a dye:
- wherein X2 represents an oxygen atom, a nitrogen atom, a sulfur atom, or a dialkylmethylene group;
- R5, R6, R7, and R8 each independently represent a hydrogen atom or a substituent;
- M2 represents a counter ion to balance the charge of the molecule;
- and m2 denotes a number of 0 or more necessary to neutralize said charge of the molecule.
Dependencies are inferred from the claim text.