(1) classification and performance introduction of sports shoes:

Rubber: used for sole of all kinds of sports shoes.

Advantages: good abrasion resistance, skid resistance, elasticity, no breakage, good softness, good elongation, stable shrinkage, good hardness and good bending property.

Disadvantages: heavy weight, easy to spit cream (quality problems), not easy to corrode (environmental problems).

PU: polymer polyurethane synthetic material, commonly used in basketball, tennis shoes sole, can also be used directly in the sole of casual shoes.

Advantages: high density, high hardness, good abrasion resistance, good elasticity, good oxidation resistance, easy corrosion and environmental protection, and easy to wrinkle.

Disadvantages: strong water absorbency, yellowing, easy to break, poor elongation, water resistance, and rot at the bottom.

EVA: vinyl acetate copolymer, polymer material.

Advantages: light weight, good elasticity, flexibility, wrinkle free, excellent coloring and suitable for all kinds of climates.

Disadvantages: easy to absorb water, not easy to corrode, environmentally friendly and easy to dirty.

PHYLON (MD): it belongs to EVA two high pressure molding products, and the main material for running shoes, tennis shoes and basketball shoes in the middle of the world, can also be used for soles of casual shoes.

Advantages: lightweight, elastic, fine appearance, soft and easy to clean. Hardness, density, tensile force, tear and elongation are good.

Disadvantages: it is not easy to corrode and is environmentally friendly. It is easy to wrinkle and shrink easily at high temperature.

TPR: hot melt molding with TPR pellets, commonly used in jogging, slow walking, soles and soles.

Advantages: easy to shape and cheap.

Disadvantages: heavy material, poor wear (non abrasion), poor softness, poor bending property (no bending resistance) and poor shock absorption capability.

Performance comparison:

TPR is much heavier, more elastic, and generally more durable.

The bottom of EVA is light and elastic. It only wears a long time to reduce elasticity and become more practical.

Price -

TPR is the cheapest.

(two) classification and performance introduction of sports shoe upper.

The material of sports shoes is about PVC, PU, Niu Ba, microfiber, natural skin, mesh cloth and so on.

Explain:

PVC: most are cheaper, with poor texture, no cold resistance, no folding resistance, and products without PVC as fabrics.

PU leather and Niu Ba are the most commonly used materials in the market.

Microfiber: soft texture, uniform texture, close to natural skin, but even more uniform and elastic than natural skin. It is one of the best materials for synthetic leather.

Natural skin: widely recognized material, it is breathable, soft, resistant to peeling, folding, and cold. It is durable. It has defects, many pores and irregular shape.

Mesh cloth: it can be divided into three main categories. The main material mesh cloth is used in the exposed area. It is lightweight and has good air permeability and bending resistance, such as sandwich mesh, neckline accessories, such as velvet, BK cloth, and rib fabric accessories, such as Li Xin bu.

Note: the shoe sole and the shoe upper are marked on the shoebox, which can be compared.

Gloss.