Inkjet printing medium comprises a support and an ink-receiving layer comprising a water-soluble binder, an aluminosilicate polymer and an inorganic filler

摘要

Inkjet printing medium comprises a support and an ink-receiving layer comprising a water-soluble binder, an aluminosilicate polymer produced by a defined method, and an inorganic filler. Inkjet printing medium comprises a support and an ink-receiving layer comprising a water-soluble binder, an aluminosilicate polymer and an inorganic filler. The aluminosilicate polymer is produced by treating a mixed aluminum and silicon alkoxide having only hydrolyzable functions, or a precursor prepared by hydrolyzing a mixture of aluminum compounds and silicon compounds having only hydrolyzable functions, with an aqueous alkali in the presence of silanol groups, where the aluminum concentration is below 0.3 M, the aluminum/silicon molar ratio is 1-3.6 and the alkali/aluminum molar ratio is 2.3-3; stirring the mixture at room temperature in the presence of silanol groups; and removing by-products.