Identify Roller Cover Lint

What happens here

The video shows a painter who has encountered a problem: lint from a roller cover has transferred to a freshly painted wall. This highlights the common issue of shedding from unconditioned or poorly prepared roller covers, which can occur with various fiber types, including synthetic. The painter notes the roller was "already been used and dented" and "hasn't been [conditioned]" which caused "lint all over this wall."

Goal: Observe lint appearing on a freshly painted surface due to an unconditioned or damaged roller cover.