| 摘要 |
Aqueous ink jet ink compositions comprise pigment, humectant, dispersant, and latex binder. The latex binder is formed from first monomer having a glass transition temperature Tg greater than about 70 C and comprising styrene, substituted styrene, methyl methacrylate, or a mixture thereof, second monomer having a glass transition temperature Tg less than about 0 C and comprising a C2-C10 alkyl acrylate, charge stabilizing agent, emulsifier and initiator. The latex binder has a glass transition temperature Tg of from about 0 C to about 70 C, an average particle size of from about 150 nm to about 350 nm, and a surface tension of from about 40 dynes/cm to about 60 dynes/cm. Methods of ink jet printing comprise ejecting a droplet of an aqueous ink jet ink composition containing a latex binder through a nozzle and onto a surface of a paper recording medium, and optionally passing the paper recording medium with the aqueous ink jet ink composition on a surface thereof through a fuser system at a temperature greater than about 100 C for about 5 to about 100 seconds.
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