| abstract |
[Problem] The present invention provides a material which is simply applicable to a substrate, can be applied to a wide range of substrates, and at the same time can form a substrate having an anti-fouling coating having excellent antifouling properties and an ink-receiving layer having excellent decolorizing properties. to provide. Solution The material comprises (a) the following fine particles (a1) or the following fine particles (a2) and (b) dispersion medium: (a1): titania fine particles having an average particle diameter of 2 to 50 nm and an average particle diameter Porous silica fine particles having a specific surface area of 5 to 100 nm and a specific surface area of 300 m 2 / g or more by BET method, or (a2) Porous silica having a specific particle diameter of 5 to 100 nm and a specific surface area of 300 m 2 / g or more by BET method Porous silica fine particles obtained by surface-modifying the particulate surface with a titanate compound.n n n Titanium, Silica, Fine Particles, Substrate, Anti-Pollution, Coating, Ink-Receiving Layer, Decolorization |