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Variation in trash composition in raw cottons

P R Morey, P E Sasser, R M Bethea

    American Industrial Hygiene Association Journal
    |July 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

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    Machine-picked and stripped raw cottons were analyzed for plant trash. Bract, leaf, and weed fragments were identified as major trash components contributing to cotton dust in manufacturing.

    Area of Science:

    • Agricultural Science
    • Textile Science
    • Environmental Science

    Background:

    • Cotton dust generated during yarn manufacturing poses occupational and environmental concerns.
    • The composition of plant trash in raw cotton influences dust levels and processing efficiency.

    Purpose of the Study:

    • To identify and quantify plant trash components in machine-picked and machine-stripped raw cotton varieties.
    • To understand the contribution of different trash types to potential cotton dust formation.

    Main Methods:

    • Examination of raw cotton samples using stereomicroscopy and bright-field microscopy.
    • Analysis of plant trash fragments, including bract, leaf, stem, seed, boll, and weed fragments within a specific size range (841–2000 µm).

    Main Results:

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    • Bract was consistently the predominant trash component across all examined raw cotton samples.
    • Cotton leaf and non-cotton weed materials were also significant trash contributors in most varieties.
    • Machine-picked and machine-stripped cotton varieties exhibited varying trash compositions.

    Conclusions:

    • Raw cotton trash, particularly bract and leaf fragments, is a primary source of cotton dust.
    • Understanding trash composition is crucial for mitigating dust in textile manufacturing.
    • Varietal differences in trash content highlight the need for careful cotton selection in processing.