Thanks for all the feedback. I've been printing tees for 25+ years and I'm still not sure what has gone wrong here. I must admit all of the most baffling problems over the years have been caused by Discharge printing. Love the results when things go well but is it really worth the hassle?
O.K. Some more details. Flashed the discharge base and printed Wllflex MX Pantone colours on top, through an M+R Sprint 2000 HO dryer. It's a proper dryer.
A comment was made during set up regarding the CCI U-Base which is why my initial thoughts were the ink was bad. It wasn't mixing very well and almost looked "separated" or "oily". Has anyone experienced this? It printed O.K though and discharged well enough on the press. The print looked awesome.
When the customer complained about washing issues we Ubered the stock straight back. My hope was they were under cured so I cranked up the heat and slowed the belt. Put them back through and gave them a heatptress for good measure. After a wash my heart sunk as the plastisol (only in a certain area) was coming away from the base. Did the same again but with a 25 second heat press and more pressure. In the washing machine now.............
Will let you know how it goes and post some photos if I get time.
Fun and games.
This almost sounds like an undercure, or there was to much white in the base, and the plastisol highlight wasn't adhering properly.