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shoe quality control

Auto-vanishing pens risk – Case #648

“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 auto-vanishing pens for outsole marking. There are chances that the pen markings can reappear in cold weather.

shoe quality control

shoe quality control

Impactiva solution: we got the factory to do the sole marking with needle impressions instead of auto-vanishing pens.

shoe quality control

case 648 pic 4 impactiva footwear qa

shoe quality control

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

shoe quality control

Visible stitching holes – Case #641

“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: stitching holes are visible after lasting.

shoe quality control

Impactiva solution: we got the factory to attach a 35 mm. width tape underneath the vamp and counter joint in order to avoid the stretching of that area when lasting, which is the reason why stitching holes are visible.

shoe quality control

shoe quality control

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

shoe quality control

Wrinkles in the topline collar – Case #638

“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 pre-production trial came with wrinkles in the topline collar.

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Impactiva solution: we got the factory to change the collar backer in production, use 1.5 SBR (Styrene Butadiene Rubber) instead of 6N canvas in order to avoid these wrinkles. Another sample of the importance of  pre-production trials, that allow adjustments to be made before bulk production runs.

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

impactiva shoe quality control

Perforated upper material – Case #632

“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: perforation holes don’t look neat as the upper material stretches during the  lasting process.

impactiva shoe quality control

Impactiva solution: we got the factory to attach reinforcement tape on the back side of the upper material in order to avoid the elongation that causes perforation holes to stretch.

impactiva shoe quality control

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

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Damaged when de-lasting – Case #607

“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: shoes were getting damaged when de-lasting because the pad of the de-lasting machine was old and in poor condition.

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Impactiva solution: we got the factory to regularly replace the pad and avoided any damage in finished shoes.

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

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When Quality Control is not enough – Case #02

This is the 2nd case of a series of blogs with real photos taken at final QC inspections of different styles, clients and factories. We will show aesthetic and functional defects, and sloppy rework attempts.

The purpose is to show that when this kind of defects make it all the way to the final QC stage, there is an urgent need to shift from Quality Control to Quality Assurance. This means to focus on quality all the time the product is being manufactured to elevate the outgoing quality, instead of just controlling the result when it is time to ship the goods.

Quality pays for itself. If we calculate the materials, labour, energy and time wasted in producing these shoes that are completely un-shippable, is clear why we say that Quality is free.

 

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Heel alignment – Case #585

“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 system or tools to check the heel and counter center alignment, and the back height.

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Impactiva solution: we got the factory to fix an L-scale on the QC table to check the heel and counter center alignment as well as the back height.

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

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Fibers and fraying on cut components – Case #583

“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: cutting board fibers and dust on the cut components, and edge fraying caused by the irregular surface of the board.

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Impactiva solution: we got the factory to re-surface the cutting board regularly every in 3-4 days in order to improve the quality of the cut components.

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case 583 pic 3 impactiva footwear qa case 583 pic 5 impactiva footwear qa

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

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Preventing topline waviness – Case #581

“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 backer attached on the topline collar. This may cause waviness.

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Impactiva solution: we got the factory to attach a 25 mm cotton tape to avoid waviness and floating on the topline.

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

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Uneven eyelets distance – Case #552

“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: eyelets punch distance is uneven measuring from the quarter top line edge.

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Impactiva solution: we got the factory to fix a jig on the punching machine to maintain the distance even.

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