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shoe quality control

Insoles position – Case #617

“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: insoles were a little off the last, since there was no support to hold them.

shoe quality control

Impactiva solution: we got the factory to use clips on the toes area to hold the insole with the last in the correct position.

shoe quality control

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

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De-shaped insoles – Case #614

“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 insoles were being hammered on a flat surface when being attached, this caused them to lose their shape.

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Impactiva solution: we got the factory to leave the lasts inserted in the sandal when hammering the insoles. This prevented de-shaping.

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

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The thong strap pulls off – Case #613

“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 thong strap pull-off test fails because the insole board has poor strength.

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Impactiva solution: we got the factory to attach a reinforcement tape under the insole board to  improve the tong pull-off strength. We ran new tests and confirmed it now passes (result approx  30 KGF).

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

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Negative rocking – Case #609

“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: negative rocking. The heel cavity is different from the bottom profile at the breast area.

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Impactiva solution: we got the factory to add a 4 mm. thick insole patch in the attachment area in order to compensate the components’ difference and avoid heel negative rocking.

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

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Visible pen marks – Case #605

“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: silver pen marks visible on the sole feather edges, which are difficult to clean after glue application.

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Impactiva solution: we got the factory to place a 1.0 mm. thick insole board inside the cavity of the sole used for marking. In this way the markings will be done 1.0 mm higher and since the production soles do not have the insole board, the markings will get hidden below the sole wall when attached.

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

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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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X-ray on the outsole – Case #562

“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: X-ray on the outsole caused by bulgy strap joints in between the insole and the outsole. The straps ends are open at the grooved area on the insole.

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Impactiva solution: we got the factory to install a hot pressing mould machine so that strap ends would be attached at the grooved area on the insole while reducing the bulginess at the straps joint area in between the insole and the outsole.

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

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Organizing components – Case #422

“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: shanks of all sizes stored in one bucket, what causes that wrong length shanks are attached to the insoles.

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Impactiva solution: we got the factory to separate the shanks in 3 different buckets: small, medium and large lengths, so that the artisans can easily find the correct size to attach to the insoles.

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

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Wavy outsole – Case #341

“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: wavy outsole

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Impactiva solution: we got the factory to groove the insole to avoid the bump on the sole caused by the leather straps.

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

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Gap between heel and outsole – Case # 243

“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: there is a gap between the heel wedge, the outsole and the insole (footbed) because the outsole edge is bigger and does not fit properly in the heel wedge chamber/slot.

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Impactiva solution: we suggested the factory to slightly rough the outsole edge to make it fit.

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