Hi
Was wondering if anyone has ever encountered small blue and occasionally red dots appearing of white polyester once it has been heat pressed?
We have been test running some cushion covers and white t-shirts and after they have been heat pressed, there are small blue dots all over the fabric. We have cleaned both the machine, and teflon sheet and still it occurs.
These spots only appear (or so we have noticed) when pressing fabric, we have pressed key rings, coasters etc and haven’t had an issue with them.
Any help and advice would be very much appreciated by this newbie trying to learn the trade lol
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