Preparation method of glass surface with partial frosted area

Abstract

The present invention provides a preparation method of a glass surface with a partial frosted area. The glass surface comprises a frosted area and a non-frosted area, wherein the dividing line between the frosted area and the non-frosted area is a straight line. The preparation method comprises: carrying out screen printing of protection ink, wherein the non-sand area is subjected to two-layer acid-resistant ink overlapping screen printing, and the total thickness of the two layers of the acid-resistant ink is 8-20 [mu]m; sandblasting, wherein the frosted area of the glass is sandblasted by using a sandblasting machine with 4-16 spraying nozzles, the glass is pushed to move forwardly along with a conveying belt during the sandblasting, and the sand is angular alumina and / or silicon carbide; and carrying out acid washing, and carrying out fade plating of the protection ink. According to the present invention, the screen printing of the ink protection is set before the sandblasting, and the specific operation modes and the parameters of the sandblasting and the acid washing are controlled, such that the step position deviation of the glass surface with the partial frosted area is less than 20 [mu]m, and the linearity of the sandblasting dividing line is less than 30 [mu]m.

Description

technical field [0001] The invention belongs to the technical field of touch screen glass surface treatment, and in particular relates to a method for preparing a partially frosted glass surface. Background technique [0002] Part of the frosted surface may be used in the glass panel of the touch screen of an electronic product, such as figure 1 The touch screen glass surface of the shown Appletv remote control includes a frosted area 1 and a non-sanded area 2, and the boundary line 3 between the frosted area 1 and the non-sanded area 2 is a straight line. In such a glass surface, due to the different plane heights of the frosted area 1 and the non-sanded area 2, a certain height of step difference is formed at the dividing line, and the straightness of the dividing line 3 between the frosted area 1 and the non-sanded area 2 is limited. At present, in the prior art, adhesive tape or film is generally used to cover and protect the sand-free area, and then one of the three me...

AI Technical Summary

Problems solved by technology

[0006] The solution provided in the last method above can well solve the problems of haze, image clarity, surface roughness and uniformity in the frosted area of ​​the glass surface, but for partially frosted glass with step difference and boundary line On the surface, the above-mentioned solution cannot properly solve the problem of the step difference of the glass surface and the straightness of the dividing line

Images