| abstract |
The present invention provides a sol of a porous material having a small particle size, an inorganic and uniform pore size, and a method for synthesizing the same. Another object of the present invention is to provide an ink jet recording medium excellent in ink absorptivity, transparency, water resistance and light resistance, and an ink jet recording medium coating liquid using the same. In the present invention, the average particle diameter of particles measured by a dynamic light scattering method is 10 to 400 nm, the average aspect ratio of primary particles is 2 or more, and mesopores extend substantially in the longitudinal direction. The present invention relates to a sol containing an inorganic porous material that is not secondary agglomerated. |