Colorants for use within ink systems
Novel addition products of hydroxyl-protecting groups (such as isocyanates) with oxyalkylene-substituted intermediates, such as poly(oxyalkylenated) aniline compounds, for the eventual production of substituted, and substantially pure, colorants, particularly diazo and triphenylmethane derivatives, through the reaction of such intermediates with certain reactants are provided. These new colorants exhibit improved wax and/or oil solubility and high purity, particularly due to the inability of certain impurities to deleteriously react with the protected hydroxyl groups of either the intermediate or the colorant during and/or after formation thereof. A method for producing such novel colorants through utilization of these novel substantially pure colorant intermediates is also provided.
1. A colorant conforming to the structure of Formula (II):
wherein R′ is selected from the group consisting of hydrogen, C 1 -C 10 alkoxy, and C 1 -C 20 alkyl; wherein R″ is selected from the group consisting of hydrogen, C 1 -C 10 alkoxy, and C 1 -C 20 alkyl; wherein R″′ is selected from the group consisting of hydrogen, C 1 -C 24 alkyl groups, phenyl, substituted phenyl, and any combinations thereof; and x is from 1 to 100; or any salts thereof.
2. A cellulose-based substrate to which the colorant of claim 1 has been applied.
3. A colorant conforming to the structure of Formula (III):
wherein R′ is selected from the group consisting of hydrogen, C 1 -C 10 alkoxy, and C 1 -C 20 alkyl; wherein R″ is selected from the group consisting of hydrogen, C 1 -C 10 alkoxy, and C 1 -C 20 alkyl; wherein R″′ is selected from the group consisting of hydrogen, C 1 -C 24 alkyl groups, phenyl, substituted phenyl, and any combinations thereof, and x is from 1 to 100; or any salts thereof.
4. A cellulose-based substrate to which the colorant of claim 3 has been applied.
5. A colorant conforming to the structure of Formula (IV):
wherein R′ is selected from the group consisting of hydrogen, C 1 -C 10 alkoxy, and C 1 -C 20 alkyl; wherein R″ is selected from the group consisting of hydrogen, C 1 -C 10 alkoxy, and C 1 -C 20 alkyl; wherein R″′ is selected from the group consisting of hydrogen, C 1 -C 24 alkyl groups, phenyl, substituted phenyl, and any combinations thereof; and x is from 1 to 100; or any salts thereof.
6. A cellulose-based substrate to which the colorant of claim 5 has been applied.