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case 574 pic 2 impactiva footwear qa

Risk of straps pulling off – Case #574

“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: the style had very thin straps, so there were high chances of the upper failing the pull off test.

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Impactiva solution: we got the factory to stitch a piece of textile at the edges of all the straps in order to provide extra contact area for proper bonding with sole and insole

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

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Primer application – Case #555

“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: the factory was using a plain nylon brush to apply primer on outsoles. This brush cannot hold the primer due to its low viscosity, what poses a risk of not applying sufficient primer. This may affect the sole bonding.

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Impactiva solution: we got the factory to cover the nylon brush with a piece of cotton cloth in order to increase the quantity of primer applied to the outsoles, what will enhance bonding strength.

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

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Work in process order – Case #536

“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: no identification mark on already halogenated soles, chances of mixing them with non halogenated soles.

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Impactiva solution: we got the factory to mark date and time on the halogenated soles to avoid mixing them with other soles.

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

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Risk of color migration – Case #511

“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: risk of color migration from the black PU upper material on to the white outsole wall.

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Impactiva solution: we got the factory to attach a transparent PVC welt of 35mm width and 1.1 mm thick on the feather edge area of the outsole to avoid color migration on to the white outsole. This procedure will not affect the sole bonding or cause lip opening. After adding the PVC welt, we tested sole bonding with a result of 24.63 Kg.

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

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Sole bonding problem – Case #510

“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: sole edges not perfectly bonded.

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Impactiva solution: we got the factory to make some adjustments in their sole pressing process. 1) We had them adjust the sole pressing time (side pressing) up to 8 seconds. 2) We got them to attach an EVA sheet on the toe part of the sole molding area in order to achieve more uniformity in the side sole part. 3) We had them install a balloon pressing machine to increase sole bonding.

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

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Gap in sole edge – Case #507

“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: gap in the sole edge at the quarter joint.

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Impactiva solution: we got the factory to hot press the overlapping edges in order to reduce the bulginess and therefore avoid sole edge gaps.

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

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Sole placement – Case #497

“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: the factory was using the sole for marking its placement on the upper, but the marking was not consistent due to poor handling of the sole.

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Impactiva solution: we got the factory to make a vacuum pattern with notches on the sides, toe and heel, which is more convenient for the artisan to align on the lasted upper in the correct position in order to mark the sole placement consistently.

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

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Dents on the sole – Case #479

“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: sole dent caused by the factory using a wrong type of sole pressing pad in production.

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Impactiva solution: we got the factory to use a flat bed pressing pad on the sole pressing machine to avoid dents.

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

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Sole wall gap – Case #476

“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: sole wall gap because the PVC strip was too thick.

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Impactiva solution: we got the factory to skive the PVC strip to avoid the gap on the outsole edge.

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

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Colour transfer – Case #473

“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: black EVA transfers colour on the sole after sole pressing.

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Impactiva solution: we got the factory to use PU sheets to cover the black EVA sheet and avoid black stains.

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