These are the other possible causes as to why you will have a peeling problem.
Heat transfer vinyl coming off.
I would like to add that you can effectively use a vinyl letter removing solvent in case you want to remove the vinyl from your garment.
After removing the plastic carrier sheet i like to flip my project upside down or inside out and apply some more heat to the backside to ensure a really good application.
Maybe you thought that it adhered properly but after a few washes you noticed the heat transfer vinyl peeling off.
Now you should have an idea how to handle heat transfer vinyl peeling off issue.
It is likely that your heat transfer vinyl is peeling off due to the temperature of your heat press.
So all you need to do is increase the temperature 5 f to 10 f.
For heat transfer vinyl to work correctly it must be melted into the fabric.
Your vinyl isn t coming off of the transfer tape.