METHOD FOR PRODUCING A RAISED MARKING ON A GLASS OBJECT

摘要

- 12 - Abstract Method for producing a raised marking on a glass object5 In a known method for producing a raised marking on a glass object, asuspension containing 3102 particles is applied to a surface of the glass object as a pattern, and the pattern is compacted to form the marking: Starting from this, in order-to enable a cost-effective production of an optically appealing and uniform marking on an object made of quartz glass, which marking is also suited for10 applications at high temperature or in a contamination-sensitive environment, such as in solar cell and semiconductor production, it is suggested according to the invention that a binder-free suspension be used to create a marking on aquartz glass object, the suspension containing a dispersion liquid and amorphous Si02 particles having particle sizes of up to a maximum of 500 pm, of which are15 between 0.2% by wt. and 15% by wL 5102 nanoparticles having particle sizes of less than 100 nm, and the solids content thereof, i.e. the weight proportion of the Si02 particles and of the 8102 nanoparticles together, is in the range between 60% and 90%. FIG. 1