"卷筒纸拉力" can be translated as "tension of roll paper" or "pulling force of roll paper".
"Tension" is commonly used in technical contexts to refer to the pulling force transmitted axially through a material, such as paper on a roll.
"Pulling force" is a more straightforward term that directly describes the force exerted to pull the paper.
Both translations are acceptable, but "tension of roll paper" might be more precise in technical or engineering discussions.