DYE-FIXING AGENT FOR AQUEOUS INK, INK JET RECORDING MEDIUM AND POROUS HYDROTALCITE COMPOUND

摘要

A dye-fixing agent in an aqueous ink receiving layer for use in an ink jet recording medium having a substrate and, laminated thereon, the aqueous ink receiving layer, which comprises a hydrotalcite compound containing a silicate anion and a sulfate ion or a silicate anion as constituting anions; and an ink jet recording medium having a substrate and, laminated thereon, the aqueous ink receiving layer; and a porous hydro compound represented by the formula (1): M1-xAlx(OH)2(A1)a(A2)b•yH2O wherein M represents Mg<2+> and/or Zn<2+>, A1 represents a n-valent silicate anion and sulfate ion or a n-valent silicate anion, A2 represents an anion selected from the group consisting of CO3<2->, NO3<->, Cl<-> and OH<->, x and y satisfy the formula 0.50 < x