Patent ID: 8697204
Filing Date: 2014-04-15
Classification: B41M,B82Y,C01P,C09C

Abstract:
1. Recording sheet for ink jet printing having coated onto a support at least one ink-receiving layer consisting of at least one binder and at least one dispersion of surface modified silicium dioxide, wherein the surface of the silicium dioxide consists of the reaction products of at least one compound of trivalent aluminum and/or tetravalent zirconium with at least one aminoorganosilane, wherein the aminoorganosilane is selected from the group consisting of N-(ethyl)-aminoisobutyltrimethoxysilane and N-(cyclohexyl)-aminomethyltriethoxysilane or mixtures thereof; and wherein a layer of 1 cm thickness of an aqueous solution, prepared at room temperature, of 0.01 moles of aluminum chlorohydrate, 0.02/k moles of aminoorganosilane or a mixture of aminoorganosilanes, 0.01 moles of hydrochloric acid and 0.02 moles of glyoxal, having a final weight of 200 g, and stored for 24 hours at room temperature, shows an absorption increase of less than 0.05 at a wavelength of 400 nm after storage, wherein k is the number of amino groups of the aminoorganosilane or a mean value of the numbers of amino groups of the individual aminoorganosilanes in the mixture of aminoorganosilanes.