Method of monitoring production of protective fabric

Details Method of monitoring production of protective fabric Method of monitoring production of protective fabric

B - Operations, Transporting

05

D

324/48

B05D 3/10 (2006.01)

Patent

CA 1299243

ABSTRACT OF THE DISCLOSURE The quantity of chemical, e.g. charcoal added to fabric used to produce protective clothing for the military is usually determined by the simple expedient of weighing the fabric or swatches thereof before and after impregnation in a charcoal slurry. This method may result in large errors. A simple, effective method of determining the quantity of charcoal or other chemical being incorporated in a fabric base is to add a magnetic tracer, e.g. magnetite to the chemical prior to impregnation, and to measure the magnetic susceptibility of the fabric on a continuous basis immediately following impregnation. If the magnetic tracer is uniformly mixed with the chemical, the direct correlation between magnetic susceptibility and tracer concentration will provide an accurate indication of tracer and consequently chemical concentration in the fabric. When a chemical such as charcoal possesses an inherent magnetic susceptibility, no tracer is required.

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