(1) Introduction and classification of sports shoes substrates:
Rubber: Used for a variety of sports shoes outsole.
Advantages: good wear resistance, non-slip, elastic, not easy to break, good softness, good stretchability, stable shrinkage, good hardness, good bending.
Disadvantages: Heavy weight, easy to spit cream (is a quality problem), not easy to corrosion (environmental issues).
PU: Polymer polyurethane synthetic material, commonly used in basketball, tennis shoes in the end, can also be directly used for casual shoes outsole.
Advantages: high density, high hardness, good wear resistance, good elasticity, good oxidation resistance, easy to erode, easy to erode, and easy to wrinkle.
Disadvantages: Strong water absorption, easy yellowing, easy to break, poor elongation, water resistance, perishable at the end.
EVA: vinyl acetate copolymer, polymer material. Commonly used in jogging, jogging, casual shoes, foot training shoes in the end.
Advantages: light weight, good elasticity, good flexibility, not easy to wrinkle, with excellent coloring, suitable for all kinds of climate.
Disadvantages: easy to absorb water, not easy to corrode environmental protection, easy to dirty.
PHYLON (MD): It is an EVA secondary high pressure molding product. It is the main material used in the midsole of international running shoes, tennis shoes and basketball shoes. It can also be used for casual shoes outsole.
Advantages: Light weight, elastic, fine appearance, good softness, easy to clean, good hardness, density, tensile strength, tearing and elongation.
Disadvantages: not easy to corrode environmental protection, easy to wrinkle at high temperatures, easy to shrink.
TPR: TPR pellets after hot melt injection molding, commonly used in jogging, slow pace, casual shoes in the end, outsole.
Advantages: easy to shape, cheap;
Disadvantages: material weight, poor wear (not wear), poor softness, poor bending (not folding), poor shock absorption.
Performance comparison:
TPR ratio is heavy, heavy, elastic, and general wear resistance. The specific gravity of the rubber sole is also relatively large, but it is softer, wear-resisting, strong grip, but poor elasticity. It is generally used in indoor soccer shoes and casual shoes.
The EVA is very light and elastic, but it is only a little longer when it is worn and it becomes more practical. PU, MD bottom flexible, and long-term deformation, more flexible and comfortable when moving, the proportion of small, very light, so the use of more extensive, (PU than MD density greater shock absorption effect is better, but at the same time relatively heavy). General large negatives are rubber, wear-resistant and non-slip.
Price -
TPR is the cheapest PU = TPR × 2 times or so MD = TPR × 3 times or so Md Cushion TPR × 4 times more PU Cushion TPR × 4-6 times more
(b) Introduction and classification of sports shoe face material:
The fabrics of sports shoes include PVC, PU, ​​UMB, microfiber, natural leather, mesh, etc.
Explanation:
PVC: Most of them are cheaper, have poor texture, are not cold-resistant and are not resistant to folding; they do not use PVC as a fabric.
PU leather, Nuba: is the most commonly used material on the market. PU leather is soft, elastic, feels good, there are many surfaces
Microfiber: soft texture, uniform texture, performance is very close to the natural skin, but more uniform than the natural skin thickness, more balanced elasticity, is one of the best materials of artificial leather. The cheapest price is also more than 60 yuan per yard, good as high as 200 yuan, at present, most of our shoes use this material.
Natural leather: It is a material generally recognized by people. It is breathable, soft, resistant to peeling, folding, cold-resistant and durable. The disadvantages are flaws, many pores, and irregular shapes. Natural skin has always been loved by people; leather shoes have leather, pigskin, deerskin, ostrich skin, crocodile skin, snake skin and many other species. Sneakers generally use cowhide. Leather can be divided into the first layer of skin and the second layer of skin, the first layer is also called beaded skin, the second layer is called second skin or patent leather, usually the first layer of skin is three to five times the price of the second skin. Sports shoes, especially basketball shoes, use a lot of first layer leather, which is very valuable.
Mesh: mainly divided into three categories, the main material mesh cloth, used in the exposed area of ​​the helper surface, lightweight and good breathability, bending resistance, such as sandwich net cloth; collar accessories, such as velvet, BK cloth; and linbu Accessories, such as Lixinbu. The main feature is wear-resistant, good ventilation.
Note: Sports shoes and shoe materials are marked on the shoe box and can be compared.
luster. The surface of the bovine bar is mostly frosted, with a coarse and astringent touch, less luster and an extinction matte surface, and most are inelastic. Niu Ba and PU are different, but each has its own characteristics. Relatively speaking, PUs are used more widely and prices range from a dozen to a hundred blocks. Sports shoes use mid-range and above PU and PU leather uppers.
Knitted Polar Fleece,Bonded Polar Fleece,Yarn Dyed Polar Fleece,Polyester Micro Polar Fleece
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