Question: what is neps in fabric?
Answer: Neps Devalue Cotton A nep can be defined as a small knot (or cluster) of entangled fibres consisting either entirely of fibres (i.e. a fibre nep) or of foreign matter (e.g. a seed-coat fragment) entangled with fibres. In contrast to the loose arrangement of a worsted nep, a cotton nep generally has a tight formation.