Different usage of paper towel
Solution 1:
In Britain, I don't know about elsewhere, we mostly call the whole thing a "kitchen roll" (note spelling). It is a roll of paper, perforated to enable one or more sheets to be torn off at a time. These may be called 'towels' (countable), and the paper itself can be called 'kitchen towel' (a non-count or mass noun).
Kitchen towel