Morey P R, Sasser P E, Bethea R M, Kopetzky M T
Am Ind Hyg Assoc J. 1976 Jul;37(7):407-12. doi: 10.1080/0002889768507483.
Raw cotton from 4 machine picked varieties and 2 machine stripped varieties is examined by stereomicroscope and bright-field microscopy for presence of plant trash(bract, leaf, stem, seed, boll, and weed fragments-size range 841-2000mum) that gives rise to cotton dust during yarn manufacturing operations. Bract was found to be the major trash component in all raw cottons examined. Cotton leaf and non-cotton weed materials were also major trash components in most raw cottons.
