How To Make A Good Pair Of Shoes?

< p > a good pair of < a href= "http://www.91se91.com/news/index_c.asp" > shoes < /a >, a pair of shoes with WWB material should be waterproof and breathable.

These characteristics are based on the function and quality of the WWB film composite, as well as the production process of shoes.

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< p > first, the function of thin film is the foundation. This topic is no longer discussed.

The main thing is the choice of other materials.

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< p > key point: all materials used for shoes should meet the requirements of waterproof and breathability of shoes as a whole.

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< p > strong > 1, facial material < /strong > /p >

< p > water repellency < /p >

< p > to prevent wet shoes from causing the following problems, the surface of shoes must be waterproof.

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< p > - water flows into the shoes from the top, < /p >

< p > - wet shoes need to be dried for a long time, < /p >

< p > for cloth upper material, 3M spray test will be higher than 90.

Cortical shoe upper material was less than 35%/7h in Bally penetration measurement.

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< p > < a href= "http://www.91se91.com/business/" > air permeability < /a > /p >

< p > on a pair of high quality shoes, it is very important to use only enough breathable materials.

The coating must also be sufficiently breathable.

The high permeability of all materials must remain on the finished shoes.

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< p > < strong > 2, lining < /strong > /p >

< p > the permeability of liner is at least 6.

0mg/cm2.

/h (DIN53333).

Breathable materials are not used.

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< p > - water absorption and water conductivity should be as low as possible.

Avoid waterways leading to shoes.

Most commonly used shoes are waterproof polyester, polyamide or reticulated foam.

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< p > - because of the need for air permeability, intermediate lining or reinforcing materials should not be fully coated.

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< p > - airtight material will be worn with holes if used.

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< p > < strong > 3, sole > /strong > /p >

< p > - the bottom of the cortex will add a waterproof layer on the adhesive surface.

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< p > - the hole in the sole is sealed with waterproof membrane or similar material.

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< p > - and the general climbing shoes, hiking shoes or working shoes and other functional shoes, only use closed shoes (the common is the V bottom, also seen GREEDIAMOND's outsole, skid resistance is good).

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< p > < strong > 4, other < /strong > < /p >.

< p > sewing thread should be waterproof.

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< p > lining and shoe upper materials are bonded with heat resistant neoprene adhesive.

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< p > - only polyamide hot melt adhesive, because their elasticity is better.

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< p > - shoelace eyes or hooks are not rusty.

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< p > above are the basic requirements for a pair of high quality waterproof breathable shoes produced after strict quality control.

Of course, there are other conditions.

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< p > at present, the mountaineering shoes in the domestic market can satisfy these conditions, which is good quality and will not exceed 50% (optimistic figures). As far as I know, there are not many thin film traders who have a complete quality control system in the whole world. The two large families in the United States and Germany are fairly good, but the Japanese Dongli MITSUBISHI wants to do, but it hasn't started yet.

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< p > in conclusion, when we consider a "a href=" http://www.91se91.com/news/index_s.asp "Product > /a", we should not just stare at a certain indicator. After all, this is a complex society. Clothes and shoes are all complex.

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