MIL-DTL-44031E
3.5.5 Colorfastness (all Classes). The finished cloth shall conform to the colorfastness
requirements listed below in Tables I and IA when tested as specified in 4.4.3 and 4.5.1.
TABLE I. Colorfastness requirements (Classes 1 - 6).
Colors Evaluation
Laundering
Light (40 hrs
Perspiration
Crocking
(3 cycles) 1/
Or 170 kJ) 2/
(acid &
3/
(minimum)
(minimum)
alkaline) 1/
(minimum)
(minimum)
Black 357
3
3-4
3-4
1
Dk. Green 355, Brown 356,
3-4
3
3-4
3.5
Lt. Green 354, Desert Sand
500, Urban Gray 501,
Foliage Green 502
1/ Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change and AATCC
Evaluation Procedure 2, Gray Scale for Staining.
2/ Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change
3/ Rated using the AATCC Evaluation Procedure 8, AATCC 9-Step Chromatic Transference
Scale.
TABLE IA. Colorfastness requirements (Classes 7 and 8).
Colors Evaluation
Laundering
Light (40 hrs or
Perspiration
Crocking 3/
(3 cycles) 1/
170 kJ) 2/
(acid &
(minimum)
alkaline) 1/
(minimum)
(minimum)
(minimum)
All colors
3-4
----
3-4
3.5
Dk. Green 528,
Brown 529, Dark
----
3-4
----
----
Brown 530
Cream 524, Tan 525,
Pale Green 526,
----
3
----
----
Olive 527
1/ Rated using the AATCC Gray Scale for Color Change and AATCC Gray Scale for Staining.
2/ Rated using the AATCC Gray Scale for Color Change.
3/ Rated using the AATCC 9-Step Chromatic Transference Scale.
3.5.6 Pattern execution. The pattern on the printed finished cloth(s) shall reproduce the
standard sample in respect to design, colors and registration of the respective areas. The pattern
repeat of Class 1, 2 and 5 shall be 27.25 (+1.25, -2.50) inches in the warp direction. The pattern
repeat of Class 3, 4 and 6 shall be 36.00 (+1.25, -2.50) inches in the warp direction. The pattern
repeat of Class 7 and 8 shall be 25.255 (+1.25, -2.50) inches in the warp direction. The various
areas of the pattern shall be properly registered in relation to each other and shall present definite
sharp demarcations with a minimum of feathering or spew. Each pattern area shall show solid
6
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