MIL-DTL-44431B
3.3.1 Yarn. The yarn for the warp and filling shall be semi-dull, continuous multifilament nylon.
The warp yarn shall be singles and the filling yarn shall be 3-ply, air texturized.
3.4 Color. The cloth shall be scoured white to match the standard sample (see 6.4). A fluorescent
optical brightener with a resulting peak emission in the blue violet shall be used. The hue of
fluorescence shall be the same as that of the standard sample when tested as specified in 4.4.3.
3.4.1 Matching. The color of the finished cloth shall match the standard sample when viewed
under filtered tungsten lamps that approximate artificial daylight and that have a correlated color
temperature of 7500 ± 200K, with illumination of 100 ± 20 foot candles and shall be a good
match to the standard sample under incandescent lamplight at 2300 ± 200 K.
3.4.2 Colorfastness. The finished cloth shall show fastness to laundering (after 3 cycles) and
light (after 20 standard fading hours) equal to or better than the standard sample or equal to or
better than a rating of 3-4 on the AATCC gray scale for color change for laundering and a rating
of 2-3 on the AATCC gray scale for color change for light. Testing shall be specified in 4.4.3.
3.5 Physical requirements. The physical requirements for the finished cloth shall be as specified
in table I when tested as specified in 4.4.3.
Table I. Physical requirements
Characteristic
Requirement
Weight, oz./sq.yd.
3.4(min)-3.9(max)
Breaking strength (pounds) min.
Warp
200
Filling
150
Tearing strength (pounds) min.
Warp
5
Filling
4
Yarn per inch, (min.)
Warp
148
Filling
57
Air permeability, (ft.3 /max/ft.2)
16
3.5.1 Weave. The weave shall be plain.
3.5.2 Width. The width of the finished cloth shall be as specified (see 6.2) and shall be the
minimum acceptable width inclusive of the selvage when fly shuttle looms or shuttleless with
tuck-in selvage looms are used. For all other shuttleless looms, the width measurement shall be
made between the last warp yarns on each side excluding the protruding fringe(s).
3.6 Cloth preparation. The cloth shall be scoured.
3.7 Finish. The cloth shall be given a fluorocarbon type water repellent treatment. The finished
cloth shall meet the requirements specified in table II when tested as specified in 4.4.3.
4
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business