Recording medium, ink-jet recording therewith, and process for production thereof

A recording medium comprising a porous outermost layer on a substrate, an ink-receiving layer being provided between said substrate and said outermost layer, said ink-receiving layer comprising at least as much pigment as any other component by weight, and being porous, said porous outermost layer containing a particulate thermoplastic resin, said particulate thermoplastic resin exhibiting a ΔE value of not higher than 20 after light exposure,

• wherein ΔE is an index of the degree of photo-deterioration of a resin, expressed in color difference caused by light exposure, and is calculated on the basis of JIS Z 8730 according to the equation below:
• ΔE=[(L−L0)2+(a−a0)2+(b−b0)2]½
• where L and L0 are levels of the lightness;
• a and a0 are levels of the hue;
• b and b0 are levels of the saturation;
• L0, a0, and b0 are measured values before the light exposure;
• and L, a and b are measured values after a 200-hour exposure;
• and
• wherein the difference of glass transition temperature of said particulate thermoplastic resin from minimum film-forming temperature thereof is not less than 10° C., and the minimum film-forming temperature is not lower than 50° C.,
• wherein said particulate thermoplastic resin comprises latex particles comprised of a copolymer formed from three or more monomers of vinyl chloride-vinyl acetate-acrylate, and
• wherein particles of said particulate thermoplastic resin are partially fusion-bonded together.