I don't understand. What is a "patrone"?(posted 9532 days ago)You sound desparate, so I'll take a guess. Perhaps you are trying to load your own 35mm cassettes from a bulk film loader, and the problem is that you can't dismantle 35mm cassettes in order to re-use them.
The short answer is: modern 35mm casettes can't be re-used. You can take then apart with a bottle-opener, or buy a special gadget that does the same thing, but they can't easily be put back together. Taking them apart needs about the same effort as taking the top off a beer bottle, and my fingernails are not that strong.
Many years ago, Ilford casettes could be re-used. Now, the best solution is to buy re-usable plastic casettes.
If this doesn't answer you question, my apologies, and could you re-phrase it?