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Old 11-07-2017, 05:31 PM
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Richard K Richard K is offline
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That type of die needs to gather the material from the sides on the way in(pushing toward the machine). Then on the way out the tuck or gathered material is crushed. Hence it is call Tuck Shrink.

To check that the material is actually being gathered into a tuck rather than stretched, use a known size of material, say 8 x 8, then run it through thr die and out the rear. Then measure to see if it is a lesser dimension. If so it gathered, if not it stretched.

Gathering has to occur before any shrinking can happen.
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