Why are the edges curling on stickers I print?

[prettybird 0]

Hello, I had this problem before but someone said I should try a different vinyl but now I seem to be having the problem again.  I am printing on Oracal Orajet series 3165 vinyl using a Roland printer.  I am printing a sticker that is black all the way to the edge and then I contour cut it to cut it out in a rectangle.  I just noticed that the edges are curling now on some I printed about a week ago.  They didn't curl at first, but now they are.  Any suggestions on what to do?  Do you guys use transfer tape on stickers?  I was wondering if applying the transfer tape would help keep the edges from curling until it's applied to whatever it's going to stick to.  Any help would be appreciated!  Thanks!

[rgaskins 0]

I'm having the same issues with a Roland VP540...I usually just do the transfer tape...If it is lam, it won't curl...Rick

[prettybird 0]

Thanks for the response.  We called the place today that we buy the vinyl from and they said to try turning up the heat a little more and keep a box fan blowing on it.  They thought it was probably a drying issue.  But I will just use transfer tape on it too for now.  Thanks!