Water-writing paper and preparation process thereof

Abstract

The invention relates to water-writing paper and a preparation process thereof. The water-writing paper comprises a paper base and a dark hydrophillic layer which is impregnated on the paper base. According to the water-writing paper, the technical problems that existing water-writing cloth is complicated in preparation process, high in cost, and high in industrial pollution are solved; and the water-writing paper disclosed by the invention is simple in preparation process, low in cost and environmentally friendly.

Description

technical field [0001] The invention relates to a water writing paper and a preparation process thereof. Background technique [0002] Water writing cloth is a kind of writing on its surface with a brush dipped in water, and black ink marks can appear, and can be rewritten after the water dries. Water writing cloth includes non-woven fabric, black coating sprayed on the non-woven fabric, and non-woven fabric attached to the coating. In the process of writing, the written content is presented by using the principle of black coating developing with water. [0003] Although the existing water writing cloth can also be reused, it still has the following defects: [0004] 1. The production process is complicated and the cost is high; [0005] 2. The black coating is heavily polluted; [0006] 3. In the process of writing, because the drying speed of the cloth is too slow, it takes a long time to wait for the next use, which brings inconvenience to the user; [0007] 4. In wr...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problems of the existing water writing cloth production process complex, high cost, and large industrial pollution, the present invention provides a water writing paper and its preparation process