TM 5-815-1/AFR 19-6
undergoing a change of state may condense
(3) Satin fabrics drape very well because the
on fiber ends and become harder to remove
fabric weight is heavier than in other weaves.
from the fabric.
The yarns are compacted which produces
d. Weave. The weave of a fabric is an important
fabric body and lower porosity, and they are
characteristic which affects filtration performance. The
often used in baghouses operating at ambient
three basic weaves are plain, twill, and satin.
temperatures.
(1) Plain weave is the simplest and least
expensive method of fabric construction. It
lengthen fabric life. Cotton and wool can be treated to
has a high thread count, is firm, and wears
provide waterproofing, mothproofing, mildewproofing,
well.
and fireproofing. Synthetic fabrics can be heat-set to
(2) Twill weave gives the fabric greater porosity,
minimize internal stresses and enhance dimensional
greater pliability, and resilience. For this rea-
stability. Water repellents and antistatic agents may
son, twill weaves are commonly used where
also be applied. Glass fabrics are lubricated with
strong construction is essential.
silicon or graphite to reduce the internal abrasion from
9-7
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