STP900

    Effect of Functional Finish Barriers on Pesticide Penetration

    Published: Jan 1986


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    Abstract

    The purpose of this study was to evaluate how functional finishes and different levels of laundering affect a fabric's ability to prevent or inhibit pesticide penetration. In this study, three fabrics (cotton, cotton/polyester, and polyester) treated with selected functional finishes (durable press, soil release, and water repellent) and laundered at predetermined levels (0, 10, 30, and 50 times) were exposed to methyl parathion spray. The amount of pesticide that moved through the fabric was then measured. The amount measured was compared for different finishes and between launderings to determine the effect of these variables. The application of the pesticide was completed using an enclosed spray chamber that simulated actual field conditions encountered during air blast spraying. Water-repellent and soil-release finishes were found to increase the amount of protection provided by fabrics. Fabrics treated with the durable-press finish permitted more pesticide penetration than untreated fabrics, resulting in decreased protection. Methyl parathion penetration increased with the number of launderings of the water-repellent-treated polyester fabrics; however, laundering did not significantly affect the cotton and cotton/polyester fabrics' protective characteristics.

    Keywords:

    pesticide, penetration, permeation, fabrics, durable press, water repellent, soil release, methyl parathion, finishes, protective clothing


    Author Information:

    Leonas, KK
    Graduate research assistant and department head, College of Home Economics, The University of Tennessee, Knoxville, TN

    DeJonge, JO
    Graduate research assistant and department head, College of Home Economics, The University of Tennessee, Knoxville, TN


    Paper ID: STP17313S

    Committee/Subcommittee: F23.96

    DOI: 10.1520/STP17313S


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