| 摘要 |
PURPOSE: A method for forming protrusion having a sanding surface in a glass container is provided to improve a decorative function of the glass container. By using the method, various images or patterns can be easily formed on the glass surface, and it is suitable for mass production of many items in glass production. CONSTITUTION: The method for forming protrusion having a sanding surface in a glass container comprises: carrying out sanding on the inner and outer surface of the glass container(1); forming a portion coated with an acid-resistant ink(26) on a certain part of the sanding surface(11) of the glass container, wherein the outline of the portion is an image or pattern to be expressed; treating the glass container with acid by immersing it into a mixed solution(40) of hydrogen fluoride for a certain period, in order to make the glass container transparent except the portion coated with an acid-resistant ink; and washing off the portion coated with the acid-resistant ink with an NaOH solution.
|
