Evaluation of cleaning and washing processes for cotton fiber: Part V. Characterization of dust samples.
Tex Res J 1980 Feb; 50(2):84-89
Dust samples collected during the carding of washed cottons were analyzed. Fine dusts from trash samples were collected on a filter frame during carding and were separated into fractions of 20 to 30 micrometer dusts and less than 20 micrometer dusts. The dust fractions were ashed and the resulting inorganic residues were evaluated for elemental contents. The quantity of fine dusts was affected by carding rate and the use of an electrostatic eliminator on the card. Lower carding speed was associated with a lower content of fine dust per bale. The electrostatic eliminator significantly increased the amount of fine dusts per bale, even at the lowest carding speed. Ash contents varied with washing conditions, carding rate, and use of the electrostatic eliminator. A wide variety of elements were identified in the fine dusts, but unexpectedly high concentrations of copper, zinc, iron, and aluminum were detected. The authors suggest that variables in cardroom processing can significantly affect the amount and type of dusts trapped on the air conditioning filters, and perhaps the amount of dusts generated in the cardroom.
NIOSH-Publication; NIOSH-Grant; Control-technology; Cotton-fibers; Cotton-dust; Industrial-processes; Measurement-methods; Measurement-instrumentation; Industrial-equipment; Textiles-industry; Filtration; Textile-workers; Cotton-mills
Textile Materials & Management North Carolina State Univ Post Office Box 5006 Raleigh, N C 27607
Textile Research Journal
North Carolina State University Raleigh, Raleigh, North Carolina