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Environmental study of nylon flocking process.

Authors
Burkhart-J; Piacitelli-C; Schwegler-Berry-D; Jones-W
Source
J Toxicol Environ Health, A 1999 Apr; 57(1):1-23
NIOSHTIC No.
20000902
Abstract
Environmental measurements for a variety of gas, particulate, and microbiological agents have been made in order to characterize exposures associated with the nylon flocking process. Of all agents measured, particulate is the predominant exposure. Levels of total particulate ranged from O.1 to 240 mg/m3 (x = 11.4 mg/m3). Average respirable particulate was 2.2 mg/m3, ranging from 0.5 to 39.9 mg/m3. Highest levels of particulates were found in the flocking room, and direct reading dust measurements indicate that the highest peak exposures are associated with "blowdown" (a cleaning procedure used between flocking runs). The nature of the airborne particles was investigated using polarized light and scanning electron microscopy. Air samples were found to contain flock particles (fibers nominally 10-15 microm in diameter by about 1000 microm in length) and a variety of respirable particles types, several of which were linked directly to the process. Of special interest were elongated respirable particles, which by microscopic analysis, complemented with melting-point determination, were found to be shreds of nylon.
Keywords
Particulate-dust; Textiles; Microorganisms; Fiber-deposition; Airborne-particles
CODEN
JTEHD6
Publication Date
19990415
Document Type
Journal Article
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
1528-7394
NIOSH Division
DRDS
Source Name
Journal of Toxicology and Environmental Health, Part A: Current Issues
State
WV
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