Shoe Sole Processing Technology

[adhesive technology] adhesive shoes to adapt to industrial production, the drawback is hard, plate, and then will be degumming for a long time.

[internal sewing] most of the mid end brand shoes are made of

It is sewing threads directly to sewn up upper and sole and other connecting parts together with glue.

It should wear a little longer than pure adhesive shoes, but the outsole will still be unglued and the soles are not beautiful.

[border stitch] a technology called border stitch to hide the inner seam better.

Sketch map of three kinds of common shoes

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Next, we have to get into the good shoes. That is Goodyear sewing Goodyear welted. It is the most advanced sewing method in the footwear industry.

According to the survey, most of Goodyear's sewing shoes are replaced by machines.

Although they all belong to the sewing method in the Goodyear range, the machine only satisfies the mass production, but does not have the artistic sense of hand sewing.

Class is stitched by hand.

Moreover, the technology of pure hand sewing is quietly vanishing. When the Goodyear craft rises to art, its technical value can not be measured in terms of money.

To put it simply, the strict Goodyear shoes should have seven layers, leather shoes upper, inner bottom and cushion as a whole, there is a cork pulp layer in the middle, and then fixed by the welt and the sole, the main parts are independent of each other, and the replacement is simple.

This is why we used to watch British movies. Many people say that my shoes are broken and I want to change the palm, that is, this kind of shoes, because the sole is the most easily worn place of a pair of shoes, and the bottom of Goodyear shoes can be easily replaced. So many old British shoes can really wear for ten years.

Goodyear shoes layered introduction

1. insole insole cover - also known as the insole.

Cover the soft skin at the middle floor, directly touching the feet.

2. the middle sole of the shoe insole - under the bottom of the shoe, uses cowhide material to increase the stability of the sole structure.

3. shoe outsole Outsole - the sole of the shoe that touches the ground directly is usually made of thick cowhide. In addition to enhancing wear resistance, it is more important to play a good function of ventilation and drainage.

4. extension welt - this is an important part of Goodyear process.

By connecting the upper part of the shoe, the sole of the shoe and the sole of the shoe, the whole shoe structure is effectively supported.

Shoes are not easy to deform after a long period of wear. At the same time, they also increase the firmness of the combination of the upper and the sole. At the same time, the repairability of the sole is increased, and the shoes with the stitched structure can basically replace the sole.

5. cork filling layer cork filling -- cork filling layer in the hollow area of sole.

When the wearer walks, it can play the role of elasticity and stability. At the same time, it has the function of moisture absorption and sweating.

6. the heel heel is made up of several layers of hard cowhide heel, and some functional inserts are inserted. In the rear position, wear resistant rubber sheets are used to slow down the wear of the heel.

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7. spring plate shank spring - generally made of elastic steel sheet, placed in the hollow position between the midsole and the extension layer of the arch position, it acts as a cushion when walking.

OK, look at this picture. Needless to say, you will also know that such shoes will be comfortable to wear, cushioning, elastic, breathable, and more importantly, not afraid of degumming.

Unless you take the mountain road, you can wear a pair of Goodyear shoes to wear glue is very unlikely.

Because the process is complex, so people sell you one thousand or more than a thousand pairs, is not without conscience.

A pair of Goodyear shoes can only see tiny stitches along the edges.

At present, many big brands in the market have been processed by fake Goodyear. They look like Goodyear, but actually they still have side seam and glue.

In fact, the side seam is not unreliable, but because of the small number of layers, the bottom can not be replaced and the comfort degree is low. It can only be called pseudo Goodyear.

There is also a way of sewing with Goodyear, which is called Norway suture. Nowadays, it is seldom used. Its feature is that stitches are more dense and multilayer than Goodyear, like braids, usually with thick bottom and heavy shoes, which is a shoe technology suitable for muddy mud in northern Europe.

Norway sewing technology shoes map