TSB
screen printing => Non Textile => Topic started by: ericheartsu on August 02, 2012, 09:09:29 PM
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Anyone ever have ashtrays printed before? i'm about to dive head first into my Sage directory to try and find them, but figured i'd ask here first!
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What are they made of? Plastic or glass?
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usually plastic or ceramics or glass.
I'm assuming pad printing or etching is the way to go
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Pad printing with glass inks works pretty good, I usually try to print on the bottom side of glass ashtrays as, if they get a lot of use, nothing less than kiln-fired ceramic inks will stand up for very long.
If the bottom side is flat enough I'll silkscreen with pad printing ink loaded up with retarder as it gives a more opaque print without double or triple hitting.....Unless I can talk them into my pad-print etch ink, which is 90% of what we do, particularly on wineglasses.
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I cut my teeth on glass & ceramic decorating some time ago - screen printed on substrate specific machinary using ceramic pastes & then firing in large kilns. I have limited knowledge in regards to pad printing; I don't believe that plastic would be an issue, but you might possibly run into ink adhesion problems with glass or ceramic.
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Pad print glass inks work just fine, dishwasher safe, perfect for promotional or everyday use on cups, mugs, glass, ceramic etc. They need a heat cure cycle, but well below kiln temps (250F for 1/2 an hour, or hotter, shorter, down to 3 minutes cures etc.) Humidity in the air helps as they use a cyanoacrylate based hardener.
They do fall short of kiln fired frit or thermoplastic inks, cured pad print glass inks can be removed with a hard blade etc.