| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of modifying a self-dispersed pigment that may include reacting cyanuric chloride with about three equivalents of a secondary compound or a mixture of secondary compounds to displace all reactive chlorines to form a substituted triazine.SOLUTION: A method of modifying a pigment that includes reacting a reactive compound having an X-[Y]reactive group with a secondary compound N-S-ZM to form a substituted reactive intermediate [Y]-X-(N-S-ZM). A pigment is reacted with the substituted reactive intermediate [Y]-X-(N-S-ZM)to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. (X is a sulfonyl, phosphoryl, or 1,3,5-triazinyl group; Y is a halogen leaving group; N is a basic nucleophilic group; S is an organic group; and ZM is an ionizable end group. Also, n is an integer between 1 and 3; b is an integer between 1 and 3; and a=n-b. When n is equal to or greater than b, and if b is 2 or 3, each N-S-ZM can be the same or different). |
