OK - I got a batch of 2-color transfers from a plaec taht makes custom screen printed transfers. White and pink, they will be printed on black, and there is a half-tone in the pink. I printed a bunch on T-shirts and they look great. I just started on the sweatshirts and they look like cr@p. half of the pink dots don't even stick to the shirt. Anybody got suggestions?

I have in the past in a most testing issue have used a glue powder supplied by my transfer company to sprinkle on the graphic it is heat activated. Try first though turning up the temperature as sometimes that can help. Might check to see if material is the same
Thanks Simply Sign.n I posted that a while ago, the transfers went in the circular file some time ago. Still - I never really got this figured, so can you tell me more about this pwder? I read somewhere that traditional heat transfers only have a garanteed shelf life of about a year - even though they usually last much longer. That wasn't the problem tho, these were new. Thanks again.
Sorry I'm late to the party here, but my 2 cents relates to the type of fabric the sweatshirts were made from. Most of the time sweatshirts are some sort of a blend, so they would need different time and temperature setting. The company who you got the transfer from should be able to give you exact specification for each type of garment those transfers should work on.
THnks AM - I had a comversation with my supplier a couple weks ago. It was about a different job, he said taht I needed to make some changes for sweats. BUT he also said it was the weave of the swetshirt taht probably caused the halftones not to stick on that other job. he said the weave was course neough to swallow the dots and they didn't stick.
To solve this problem you can modify the ink with a detackifier or flash before the sticky ink is printed .
https://dadsprinting.com/