1, leather soles:
Leather outsole is a you can automatic breathing and drive the soles of the feet to breathe, good air permeability, not stuffy feet, can be released automatically absorb sweat keep feet dry. Real leather shoes with leather based, higher prices. Its advantage is easy shaping, the same type, fit, good elasticity, can reduce the impact and fatigue is not easy, ventilation, moisture absorption etc., and easy processing and style to show beauty. Hard texture is not easy to be punctured, but by water, oil soaked easily warp deformation or decay. Its main features:
Have better thermal insulation to ensure the proper temperature in the shoes.
Light weight, the weight per square centimeter in 0.95 ~ 1.05 grams, just the same density and water density. Can be waterproof and in the shoes are no longer wet when the release of moisture, to ensure that the shoes are in a comfortable state.
Unique three-dimensional fiber structure, the soles of the 180 degree bending is not broken. Can quickly adapt to the foot shape, can effectively support the impact of the ground, more effective than the same thickness of the soles of the feet more effective protection of the foot.
2, rubber base (RB):
RB is the abbreviation of English Rubber (rubber), hot press molding, divided into natural rubber and recycled rubber. Quality weight, oil resistance, mold base must be in the fitting surface grinding, the heating is easy to shorten, the color is not consistent.
Advantages: good abrasion resistance, anti-skid, elastic, not easy to break, softness better, extending good, shrinkage, stability, good hardness, good flexibility, waterproof.
Disadvantages: heavier, Yi Tushuang (genus quality problem), not easy to corrosion (environmental protection); not hard, easy to be pierced through; poor permeability, hygroscopicity, afraid of the oil soaked, not in a petrol station contact oil wear.
The rubber foam
The weight is lighter than the rubber sole, with rubber smell, with the finger on time, the surface bounce is more obvious than that of the general shoe sole, and the wear resistance is poor.
The high pressure polyethylene rubber
Soles, rubber and plastics with high pressure polyethylene and rubber ingredients.
Student: Rubber soled heavy, expensive, not resistant to oil, heat. Variable color.
3, polyurethane base (PU):
Polyurethane is a poly carbamate referred to, the English name is on, it is a kind of polymer materials, composed of a / B / C polyester foam material, two kinds of oil and water. Is a new type of organic polymer materials, known as the "fifth big plastic", is used in the manufacture of high-grade leather shoes, sports shoes, travel shoes, etc..
Advantages: low density, soft texture, good elasticity, comfortable and easy to wear; good oxidation resistance, excellent wear resistance, resistance to flexure performance, high hardness; excellent shock absorption, skid resistance, good resistance temperature performance; good chemical resistance; corrosive for environmental protection, not easy to fold.
Disadvantages: water absorption is strong, easy to yellow, easy to break, the extension rate is poor, not water, the bottom is easy to decay, poor permeability.
4, EVA at the end:
Vinyl Acetate- Ethylene vinyl acetate copolymer, polymer material. Used to jog, walk, leisure shoes, foot training shoes. Light weight, easy to process, not wear-resistant, not resistant to oil.
Advantages: lightweight, flexible, flexible, good, not easy to wrinkle, has a good color, suitable for a variety of climate.
Disadvantages: easy to absorb water, is not easy to corrosion adverse environmental protection, easy to dirty.
5, MD at the end:
Collectively, MODEL or PHYLON dragon, the two high pressure molding product is EVA. MD sole inside must contain EVA, MD is also called the bottom of the PHYLON. Such as EVA+RB+TPR or MD=EVA+RB there are some shoes are RB+PU, etc..
Advantages: lightweight, flexible, appearance, soft, easy to clean; hardness, density, tensile, tear, elongation rate.
Disadvantages: not easy to corrosion is bad for the environment, high temperature easy to wrinkle, prone to shrinkage; poor durability, use time long the ceiling brisance will be reduced. Poor ventilation.