Titanium dioxide for laminated paper with high light resistance and preparation method thereof

Abstract

The invention discloses a titanium dioxide for laminated paper with high light resistance and a preparation method thereof, wherein the titanium dioxide comprises a titanium dioxide base material and a coating layer located on the surface of the titanium dioxide base material, and the coating layer sequentially includes Zinc phosphate coating layer, aluminum phosphate coating layer and aluminum hydroxide coating layer. The titanium dioxide provided by the invention has better light fastness, hiding power and hue, can be widely used in papermaking production, and is especially suitable for laminated paper with poor light fastness in the prior art.

Description

technical field

[0001] The invention belongs to the technical field of titanium dioxide, and in particular relates to a titanium dioxide for laminated paper with high light resistance and a preparation method thereof. Background technique

[0002] Titanium dioxide, also known as titanium dioxide, is a white inorganic pigment. Because of its good light scattering power, strong tinting power, good opacity, best whiteness and brightness, high chemical stability and good weather resistance, it is widely used in coatings, plastics, papermaking , ink, chemical fiber and rubber industries.

[0003] Paper is the third largest user of titanium dioxide. Adding titanium dioxide to the paper can make the paper have better whiteness, gloss, strength and opacity. However, due to the existence of many photoactivation points on the surface of titanium dioxide, under sunlight, the oxygen ions in the crystal lattice lose electrons and become oxygen atoms, which have great activity, resulti...