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Influence of improper post-printing operation of high temperature glass ink

For high-temperature glass ink screen printing, the high-temperature glass ink pollution caused by printing is mainly generated in two aspects:


1. Post-printed glasses are stacked directly without isolation. When the glass is not completely dried, it is easy to cause high-temperature glass ink pollution on the non-printed side of the glass, so in order to avoid causing such defects, it is also necessary to avoid Scratches on the ink film surface and scratches on the glass, it is recommended to isolate the printed glass piece by piece.


2. In addition, the next step of screen printing, which causes ink pollution on the glass surface after printing, is the tempering step of screen printing. In the tempering step, if there is ink bleeding on the edges of the glass or the glass contaminated with ink on the non-printing surface is placed in the tempering furnace, the glass The ink on the edge and the ink on the non-printing surface will adhere to the ceramic roller of the tempering furnace when heated, and the ink adhered to the ceramic roller will cause ink contamination on the glass surface of the subsequent furnace.


This phenomenon is most likely to cause ink contamination of subsequent products in batches. In order to avoid ink contamination caused by this phenomenon, the tempering process must inspect the surface and edges of glass before the glass enters the furnace. Infiltration pollution and glass appear on the edges. The surface ink spot is cleaned with a blade before tempering and loading to ensure that there is no residual high-temperature glass ink pollution before entering the furnace. If it is found after the tempering of the glass, it can only be wiped with sulfuric acid, which is a certain danger and reduces the work efficiency. .


In short, in order to completely avoid high temperature glass ink pollution in glass screen printing. First of all, we must ensure that the workplace and working environment are neat and tidy. At the same time, each high temperature glass ink printing operator develops good working habits and operates in accordance with regulations.