Carding is a mechanical process that breaks up locks and unorganised clumps of fibre and then aligns the individual fibres so that they are more or less parallel with each other. The word is derived from the Latin carduus meaning teasel, as dried vegetable teasels were first used to comb the raw wool. These ordered fibres can then be passed on to other processes that are specific to the desired end use of the fibre: batting

Batting (material)

Batting is a layer of insulation used in quilting between a top layer of patchwork and a bottom layer of backing material. Batting is usually made of cotton, polyester, and/or wool....

, felt

Felt

Felt is a non-woven cloth that is produced by matting, condensing and pressing woollen fibres. While some types of felt are very soft, some are tough enough to form construction materials. Felt can be of any colour, and made into any shape or size....

, woollen or worsted

Worsted

Worsted , is the name of a yarn, the cloth made from this yarn, and a yarn weight category. The name derives from the village of Worstead in the English county of Norfolk...

 yarn, etc.