{HEAD ~ A water based ink} including a colored microparticle dispersion having water and a microparticle containing a resin and a colorant, wherein the microparticle has {TAIL ~ a core part} and a shell part to form a core shell structure and the core part and the shell part are cross linked with a cross linking agent 
{ HEAD ~ A water based ink } including a colored microparticle dispersion having water and a microparticle containing a resin and a colorant , wherein the microparticle has { TAIL ~ a core part } and a shell part to form a core shell structure and the core part and the shell part are cross linked with a cross linking agent
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