films on polyester or polyamide fabrics can result in
“migration”. The heat of the press can re-activate
the inks and start migration (change the color) on the heat-transferred
graphic. This migration, or re-sublimation, phenomenon can take 48 to
72 hours to happen, sometimes even 2 to 3 weeks.
1) If you transfer
on fabrics other than polyester or polyamide there is no actual
migration risk, you can therefore use any of our standard heat transfer
2) If you transfer on sublimated polyester fabrics (the back of the
fabrics is white or lighter shade of color) a low temperature SEF film
like FlexCut X4 can prevent migration. But test, don’t guess
and use SBB Maxima films if you have any doubts !
3) If you transfer on dispersed dyed polyester fabrics (same color back
and front of the fabric) the use of SEF SBB Maxima films is mandatory.
“Soft shell” garments made out of dispersed dyed
micro fibers are the worst “migration” case
scenario, we recommend to carefully test FlexCut SBB Maxima films every