I jus read on reddit some blogs that the better way would be to clean the packaging with house multi-use cleaner and then swipe silica/silica-base powder (like mufe hd and many others) over.
They said that this method is most effective for when the packaging is already durty and tacky and that, in their experience, alchool removed the nars printed on the packaging and made the tackyness worse, wich also occured when they used baby wipes, makeup remover and/or brush cleanner.
The only thing I've tried was cleaning with alchool and that did not work at all. I should try the other methods and see what really works for me. Mostly because all my real techiques brushes base are in the same gunk, tacky and dirty situation.