If it is 100% cotton the discoloration should come out after time, or worse case, after a wash. Many times the difference in color you see is just the moisture from humidity in the shirts being removed. At 385 degrees you won't scorch cotton.

 

Hi,

The scorch is more of a yellow discoloration.

I know what you are talking about though, the slight change in color, and I don't think this is it.

Thanks for your response though! I truly appreciate you.

 

It could be that temp of the heat press is not what it says. Measure the temp with contact thermometer. Also try covering with wide parchment paper. Some T-Shirt brand have treatment that will change with heat.

 

Hmmm. Maybe you have some residue on the platen? Try using a cover sheet of some sort to see if the problem still persists. Maybe try washing a few you have done to see if that removes the discoloration. Hope you get it sorted out. It's no fun wasting shirts.

 

Do you have any scorch remover or hydrogen peroxide to remove the marks?

 

A quick pic may get you more accurate solutions if none of the above have solved the issue.

I would agree with Luis on checking the heat press temp if it's scorching the shirts.

 

I had this same problem with pressing Next Level 6440 sueded jerseys. It turns out that they are heat sensitive. I was pressing hot split transfers at 365F and was scorching the fabric (60 cotton/40poly). I had to get transfers that applied at 300F or lower. Once I did this the press marks went away with either a wash or steam. I would say to use transfers that apply at 365F or lower (for cotton on NL; 300F and lower for poly blends on NL). Some fabrics are just too heat sensitive and the Next Level is one of them. 385F is too hot. Try 365F with longer press times.