It's more of a sizing thing that will make a patch stick with the bullet.
When you size a bullet with a patch on the paper grain will embed right into the bullet shank and you will most likely use a lube when you run that bullet through the die this will also add to the problem by having the lube penetrate through the paper and adding to the problem by gluing the patch to the bullet.
You will eliminate most of the problems if you size the bullet before you patch it or just get a mould with the proper diameter.
Lp.