Hello and welcome to the forum and the world of garment printing!
did you go to the training available for the
DTG product? If not, I would suggest you do everything you can to go, it will help you.
Now with the issue you are seeing. If it is really noticable then it is possible that you applied too much pretreatment. how did your print come out? have you washed it yet, as it will go away most of the time on the first wash. i can tell you that if you put an excessive amount that you may still see a trace after washing but should eventually go away.
i would contac Don at
![[email address]](http://www.t-shirtforums.com/?emailimage=e7db962e9b4083a600c03af1e567442f)
and see what he can do for you. There is a pretty steep learning curve for printing the dark shirts. This type of thing is one of the reasons many have become discouraged or decided not to get into the machine purchase side yet.
It is pretty percise the instructions on what to do when pretreating but you can get the hang of it with time and patient practice. Hang in there and get the training if you can.
Tom