I assume you are using white ink. If so, hover your heat press over the design for about 30 seconds before you press. You will dry the ink to touch and not let the white dull the colors.
If you drop the heat press temperature too low you run the risk of not curing the inks properly.All you need to do is drop the heat about 25 - 50 degrees. Now everytime I press I get a perfect seal with no dulling effect at all, you just need to find the right temp. and pressure and it'll be perfect.
Whenever you get new orders in from different companies or in different time periods. You need to test them first because you need a little more heat and pressure for older transfers, and companies vary a little too.
Hope this helps,
CEO - Zurka Customs
Sounds like you are referring to transfers?? this is direct to garment printing which doesn't use transfers.Whenever you get new orders in from different companies or in different time periods. You need to test them first because you need a little more heat and pressure for older transfers, and companies vary a little too.