A-A-55126B
3.2.2 Loop fastener tape (all Classes). The loop fastener tape shall be a woven, warp loop,
narrow fabric construction, with multifilament ground ends (including selvages) and picks, with
leno woven loop warp ends. The loops shall be suitably napped to form a uniformly disoriented
surface of uncut loops capable of being engaged by the hooks of the hook fastener tape
component. As an alternate, the loop shall be woven of specially treated yarns that provide a
uniformly disoriented surface without being napped. The loops of the Class 2 tape shall remain
unnapped. The loop fastener tape shall be visually examined for construction conformance and it
shall conform to the requirements in Table I and II when tested in accordance with the test
methods cited in Table VII. One determination per sample unit shall be made and the results
reported as "pass" or "fail".
3.3 Physical requirements. The hook and loop fastener tape shall conform to the requirements
stated in Table I and Table II when tested as specified in Table VII.
TABLE I - Physical requirements
Width,
4
2
1-1/2
1
3/4
5/8
Hook/Loop Fastener Tape (inch)
Characteristic
Weight, grams/linear yard (min.)
Hook Type I
Class 1 and 4
14.4
9.0
6.9
4.5
3.4
2.8
Class 2
-
13.2
9.7
6.6
4.8
4.4
Type II
Class 1 and 4
15.2
9.4
6.9
4.7
3.5
2.8
Class 3 and 5
-
10.6
-
5.6
-
-
Type III and IV
Class 4
32.0
16.0
12.0
8.0
6.0
5.0
Loop
22.4
12.6
9.4
5.9
4.1
3.4
Class 1 and 4
Class 2
15.8
12.0
8.1
6.0
5.0
-
Class 3 and 5
-
10.4
-
5.3
-
-
Breaking strength, lbs. (min.)
Hook Type I
Class 1 and 4
320
170
115
90
70
65
Class 2
-
230
155
125
90
85
Type II
Class 1 and 4
320
170
135
100
80
65
Class 3 and 5
-
230
-
130
-
-
Type III and IV
Class 4
-
-
-
-
-
-
280
165
120
75
50
43
Loop
Class 1 and 4
Class 2
-
230
160
115
70
50
Class 3 and 5
-
175
-
95
-
-
3
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