Glass etching composition, and method for manufacturing Anti-glare glass

Abstract

A glass etching composition comprises: a basic etchant for etching glass; and a syrup obtained by hydrolyzing starch, wherein the syrup can comprise at least one of glucose, maltose and dextrin, and the basic etchant can comprise hydrofluoric acid, ammonium fluoride and water. The glass etching composition can further comprise at least one of starch powder, Fibersol, pectin, locust bean gum, gelatin, guar gum, xanthan gum, gum arabic, cellulose, PEO and PVA. A method for manufacturing anti-glare glass comprises a first etching step of screen printing a first glass etchant on glass, wherein thefirst glass etchant comprises: a basic etchant for etching glass; and a syrup obtained by hydrolyzing starch, wherein the glass can have greater chemical durability than soda-lime glass. The method additionally comprises a second etching step of etching the glass with a second glass etchant after the first etching step.

Description

technical field [0001] The present invention relates to a glass etching composition and a method for producing an anti-glare glass, and more specifically, to a glass etching composition and a method for producing an anti-glare glass capable of providing excellent anti-glare properties to a glass surface while minimizing the number of times of etching . Background technique [0002] The anti-glare glass manufacturing method that exhibits anti-glare (Anti-Glare) properties on the glass surface includes the first step of forming a concave-convex structure and the second step of softening the concave-convex structure. In the past, there were various anti-glare glass manufacturing methods, and the second step of these methods was mostly similar (thinning etching), but there were differences in the first step, which were distinguished according to the first step. [0003] According to the type of the first step, anti-glare glass manufacturing methods can be divided into bath-type...

AI Technical Summary

Problems solved by technology

The rough concave-convex structure leads to problems such as reduced anti-glare quality uniformity and reduced strength, so a second thinning etching step to round the concave-convex structure is necessary

[0004] As a well-known method, the second thinning step uses a mixture of hydrofluoric acid, sulfuric acid, hydrochloric acid, etc., which is not only expensive, but also has environmental and safety issues

Therefore, the development of non-hydrofluoric acid-based secondary etching solutions and the like has also been carried out, but there are problems of reduced efficiency and high cost.

Although considerable efforts have been made to embody anti-glare properties using only the first treatment, no effective method has been reported so far

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