[a.st]

I've just bought the 2nd batch of BLACK t-shirts from the same supplier. Previously I printed the 1st batch and it was ok. But when i printed the 2nd batch, after 1 or 2 days, small yellow-brownish dots start appearing on the designs. More dots appeared after that. I tried washing the shirts prior to printing it but it didn't help either
I've checked with both my regular t-shirt supplier and printer, and both couldn't give me an answer why this happened. Please help.

PS: The 2nd batch t-shirts is made of a slightly softer cotton then the 1st one.

Thanks

 

[skanman]

Make sure you cleaned the print head, they could also be burning from too much heat or time if they are hot transfers.