Textile Engineering > GATE 2017 > Nonwoven
A needle loom, having a needle board with 2000 needles/m, is operating at a stroke frequency of 2000 strokes/min and producing a needle-punched nonwoven fabric at 5 m/min. The punch density, in number of punches per cm², is

Correct : 79 to 81

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textile engineering gate 2017 needle loom operation nonwoven fabric production punch density calculation needle punched nonwoven GATE textile engineering needle loom speed GATE 2017 Textile Engineering needle board needles/m calculation

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