While I've seen the real experts here recommend a commercial hot air "gun", various razor blades and sanding or scuffing materials before, I had to do some of that recently.
I had the hot air gun, used for shrinking shrink tubing and lifting paint, tar and other stuff, etc, but rather than start with using THAT I started for a hair dryer that I also had, and knew was actually WAY too hot for my to use normally on my short haired head!
Using my commercial gun might have delaminated the 50 year old blank that I was re wrapping, and after having enough heat just from the hair dryer I'd say start there, especially if this is the first time that you've done this job.
The main thing is BE CAREFUL, don't knick or cut into the blank, take your time, you might be surprised how easy it is to take off the wrapping that is there, especially if it is older, with just a little heat, some CAREFUL knife work with something less than Exacto sharp, and a little steel wool ......