Looseness in uppers – Case #597

May 29, 2017


“A picture is worth a thousand words”. Practical solutions to problems encountered in the manufacturing process that demonstrate how we assist our customers’ factories to produce Right from the Start TM.

Problem: usable leather was becoming loose during stiffener attaching and Strobel stitching procedures, since it required extensive handling as uppers are folded. The Factory was using non-woven material as backer, which was not providing proper strength.

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Impactiva solution: we got the Factory to use 1.2mm EVA instead of non-woven for empty grain / poor temper leather in order to keep it tight and maintain the required strength.

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Stay tuned for more Impactiva technical solutions to every day production problems.