Katun merupakan serat lembut dan halus yang tumbuh dalam buah kapas atau kapsul pelindung disekitar biji kapas genus Gossypium.






Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium.
Silk is a natural protein fiber, some forms of which can be woven into textiles. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).