Sand blasting would work, although less well than on other glass types. Acid etching would work, although the chemicals needed are dangerous and it's apparently quite a finicky process to get a good result - over etching results in a less visible etched pattern than optimal exposure to the acid.
To laser etch borosilicate you'd have to use an expensive laser, either an abnormally high powered IR laser or something higher frequency like a UV laser. It wouldn't be enough to just melt or heat stress bits off the surface, you'd have to micro structure (microscopic 3d carve) it to form something that would reflect light well, otherwise you wouldn't be able to see the etched pattern except in certain light.
On top of that the depth of field issues for a laser apply as well as the incident angle for the beam - you'd want something close to a surface normal angle to get a consistent, controllable result, so you'd have to use a 5 axis machining setup to make sure that happens. A 5 axis precision UV laser would probably cost more to run than the bottles are worth, despite their quality.
What I'd probably do if I had to label bottles like these with names is make a small soda glass plaque or tag with a mold and possibly some color tint for contrast, then etch it using an appropriate method (or maybe even mold the name in) and affix it to the bottle either by heating and slumping it into place or molding it to a matching curve and then using optical adhesive to affix it.
Or, just make a nice display box for it and put the name on a brass plaque on the front :)
To laser etch borosilicate you'd have to use an expensive laser, either an abnormally high powered IR laser or something higher frequency like a UV laser. It wouldn't be enough to just melt or heat stress bits off the surface, you'd have to micro structure (microscopic 3d carve) it to form something that would reflect light well, otherwise you wouldn't be able to see the etched pattern except in certain light.
On top of that the depth of field issues for a laser apply as well as the incident angle for the beam - you'd want something close to a surface normal angle to get a consistent, controllable result, so you'd have to use a 5 axis machining setup to make sure that happens. A 5 axis precision UV laser would probably cost more to run than the bottles are worth, despite their quality.
What I'd probably do if I had to label bottles like these with names is make a small soda glass plaque or tag with a mold and possibly some color tint for contrast, then etch it using an appropriate method (or maybe even mold the name in) and affix it to the bottle either by heating and slumping it into place or molding it to a matching curve and then using optical adhesive to affix it.
Or, just make a nice display box for it and put the name on a brass plaque on the front :)