Help with glass mug printing please

[derek]

Hi everyone

I have a large order to do for some glass mugs, but I can't seem to get a print to show on them :frown:
anyone have any information and can me please.....

my set up is as follows : A single mug press from coralgraph.

A Ricoh printer with Subli-jet inks.

11oz sublimation glass mugs.

Also does anyone on here print onto the inside of mugs ? if so I have a customer who requires this service and is looking at 200 mugs to start with, and then at least 100 mugs per month there after.

Thanks for your help.

Derek

[pisquee]

We've done a load of these in the past, and will be doing a load more with Christmas round the corner ... Are you using the plain/clear glass ones or the frosted ones?

We just use the frosted ones, as they show the artwork so much better than the clear ones.

Are you saying the image isn't showingup well, or not transferring at all?

Where did you get the glass mugs from?

[derek]

Hi Pisquee

Thank you for your reply. The image just does not seem to be very clear in fact hardly noticeable I warmed the mug up from cold in the mug press to 80 degrees and then placed the image on the mug and heated for another 180 seconds, left to cool down and removed the sublimation paper. The image is barely visible and looks almost like a very subtle water painting effect.

Derek

[pisquee]

After pre-warming the mug to 80 degrees (you are doing this so the whole mug is warm - feel the base of the mug while in the press til it feels heated too, this is to prevent the glass cracking from the temperature shock from going in cold to a hot press.) you then apply the transfer, and put the mug back into the press, but are you raising the press temp back up to 180 degrees for the actual pressing for the three minutes, or leaving it at 80 degrees?