What kinds of leather shoes do you have?

Abstract: What are the leather shoes suitable for young people? How to classify leather shoes? Young people love to follow fashion trends, and everything about stars can affect them, especially clothes. But in many cases, the dressing style of stars can't be copied, which doesn't meet the age and identity of young people. So, what shoes are suitable for young people to wear? How are leather shoes classified? Let's introduce the classification of leather shoes and find out the shoes suitable for young people. What kinds of leather shoes are there? Analysis and comparison of sole types of leather shoes

Shoes made of natural leather and Pu and Pvc instead of leather are called leather shoes. Leather shoes are one of four kinds of shoes (leather shoes, cloth shoes, rubber shoes and plastic shoes). It has many functions such as strong shaping, beauty, comfort, warmth retention, moisture permeability, folding resistance, wear resistance, labor protection and so on.

classify

There are many kinds of leather shoes, which can be classified according to different wearing objects, different wearing purposes, different wearing seasons and different manufacturing processes. Common classification methods are:

1. According to different wearing objects, there are men's shoes, women's shoes, children's shoes, old people's shoes and minority boots.

2. According to different wearing purposes, there are civilian shoes, military shoes, travel shoes, casual shoes, sports shoes, labor insurance shoes and literary shoes.

Third, according to different seasons: single shoes (spring and autumn wear), sandals (summer clothes), cotton shoes (winter clothes).

Four, according to the different production processes: sewing shoes, glued shoes, molded shoes, injection shoes, vulcanized shoes.

Sewing craft shoes are mostly used for high-grade men's shoes and labor protection leather shoes, and there are two kinds of organic sewing and manual sewing. It is characterized by high material selection requirements, complex technology, solid structure and durability. Glue craft shoes. This is a main process of shoemaking at present. The vamp is bonded to the insole, and the outsole is bonded with neoprene (strong). Not limited by the outsole mold, the color is changeable, and the product is light, which is especially suitable for middle and high-grade women's shoes with strong technical foundation.

Forming craft shoes, this process is that the vamp and sole are directly covered on the metal shoe last, and then put into the cavity of the bottom die for high temperature vulcanization.

Molded leather shoes are suitable for daily wear, can be moisture-proof and slightly insulated.

Injection molding shoes, also called injection molding process, are basically the same as the molding process. This technology has high production efficiency and low cost, and the plastic sole is oil-resistant and insulated. This process is suitable for producing civil shoes, travel shoes and labor protection shoes.

Vulcanized craft shoes, the combination of vamp and midsole, is similar to the formation of sleeve vamp. The sole is not limited by the mold cavity, but the membrane bottom is cut off from the bottom template and bonded to the vamp through high-temperature vulcanization. The process is the simplest, the production efficiency is the highest, and it is moisture-proof and somewhat insulated. Suitable for ordinary daily wear, especially for farmers. The disadvantage is that the formability and moisture permeability of the product are slightly poor.

1, leather sole:

Leather soles are soles that can breathe automatically and drive feet to breathe. Good air permeability, not stuffy feet, can automatically release absorbed sweat, keep feet dry. Leather soles are mainly cowhide, and the price is higher. Its advantages are easy setting, no deformation, good fit, good elasticity, reduced impact without fatigue, air permeability, moisture absorption and so on. And is easy to process and express aesthetic feeling. Hard texture is not easy to be pierced, but it is easy to warp, deform or rot after being soaked in water and oil. Its main features are: ① good thermal insulation, ensuring the proper temperature of feet in shoes; ② Light weight, with the weight of 0.95 ~ 1.05g per square centimeter, just the same as the density of water. Can be waterproof, release moisture when the shoes are no longer wet, and ensure that the shoes are in a comfortable state. ③ Unique three-dimensional fiber structure, the sole will not break when bending at 180 degrees. Can quickly adapt to the shape of the foot, can effectively support the impact of the ground, and protect the foot more effectively than other soles with the same thickness.

2. Rubber sole (RB):

RB is the abbreviation of English rubber; Hot pressing can be divided into natural rubber and recycled rubber. Heavy, oil-resistant, the bottom must be polished on the joint surface when molding, which is easy to shorten and the color is inconsistent when heated.

Advantages: good wear resistance, non-slip, elasticity, not easy to break, good flexibility, good ductility, stable shrinkage, good hardness, good flexibility and waterproof.

Disadvantages: heavy, easy to frost (quality problem), not easy to corrode (environmental problem); Not hard, easy to be pricked; Poor air permeability and hygroscopicity, afraid of oil immersion, not suitable for wearing in oil-exposed places such as automobile gas stations.

The foaming weight of rubber is lighter than that of rubber sole, and it has the taste of rubber. Rubber soles with fingers on time, the surface rebound is more obvious than ordinary soles, poor wear resistance. ※.

High pressure polyethylene rubber sole ※

The sole is mainly composed of high-pressure polyethylene and rubber essence, and rubber and plastic are used together.

Raw rubber sole: heavy, expensive, oil-resistant and heat-resistant. . easy to change color. ※.

3. Polyurethane substrate (PU):

Polyurethane is the abbreviation of polyurethane, and its English name is polyurethane. It is a kind of polymer material, which is foamed from A/B/C polyester and divided into oil and water. It is a new type of organic polymer material, known as "the fifth largest plastic", which is mostly used to make high-grade leather shoes, sports shoes and travel shoes.

Advantages: low density, soft texture, good elasticity, comfortable and light to wear; Good oxidation resistance, excellent wear resistance, bending resistance and high hardness; Excellent shock absorption and anti-skid performance; Good temperature resistance; Good chemical resistance; Easy to corrode, conducive to environmental protection, not easy to wrinkle.

Disadvantages: strong water absorption, easy yellowing, easy to break, poor elongation, poor water resistance, easy to rot and poor air permeability.

4.EVA bottom:

Ethylene vinyl acetate-vinyl acetate polymer, polymer material. Commonly used in jogging, walking, casual shoes, foot training shoes midsole. Light weight, easy processing, no wear and oil resistance.

Advantages: light weight, good elasticity, good flexibility, not easy to wrinkle, excellent coloring, suitable for all kinds of climates.

Disadvantages: easy to absorb water, not easy to corrode, not conducive to environmental protection, easy to get dirty.

5.MD bottom:

MODEL or PHYLON is a general term for EVA secondary high pressure forming. MD soles must have EVA, and MD soles are also called PHYLON soles. For example, MD=EVA+RB or EVA+RB+TPR, and some shoes are RB+PU.

Advantages: light weight, elasticity, delicate appearance and good softness; Easy to clean; Good hardness, density, tension, tear and elongation.

Disadvantages: not easy to corrode, not conducive to environmental protection, easy to wrinkle and shrink at high temperature; The durability is poor, and its shock absorption will be reduced and its air permeability will be poor after a long time of use.

6. bottom of 6.TPR:

TPR was originally a broad term, including TPV, SEBS, SBS, TPO, TPU, EVA and other products. TPR sole mainly refers to SBS modified shoe material (one of the applications of TPR material). TPR special material for shoe material is a new type of polymer material for shoes, which is mainly produced by thermoplastic SBS. It has rubber characteristics and can be processed and recycled according to thermoplastics. Rubber products can be made by injection molding, extrusion molding and blow molding with ordinary plastic molding machine. Hot melt TPR particles, and then injection molding, molecules move with radioactivity in the molding process.

Advantages: easy to form and cheap; It has the characteristics of portability, comfort, high elasticity, easy staining, good air permeability and high strength, especially excellent low temperature resistance, high friction coefficient and strong grip.

Disadvantages: heavy material, poor wear resistance, poor softness, poor flexibility, poor shock absorption and poor air permeability.

7.TPU seabed:

The full name of thermoplastic polyurethane elastomer is linear polymers material produced by the reaction of diisocyanate, macromolecular polyol and chain extender, which is a new type of environmental protection material.

Advantages: excellent mechanical strength, wear resistance, oil resistance and flexibility, especially the most prominent wear resistance, good appearance, generous and high-grade

Disadvantages: poor heat resistance, hot water resistance and pressure resistance, easy yellowing of appearance, easy mold sticking during processing, hard and heavy, and poor air permeability.

8.PVC sole (imitation sole leather):

PVC is light yellow, translucent and shiny. Whitening will appear at the bend.

Advantages: most of them are relatively cheap, oil-resistant, wear-resistant and good in insulation.

Disadvantages: poor slip resistance, poor texture, cold resistance, folding resistance and poor air permeability.

9. At the end of 9.TR:

TR sole material is a new product improved on the basis of TPR, which is a synthetic material of TPE and rubber, and its product performance is excellent. Thermal injection molding, in which molecules move in a spherical shape. It has the characteristics of various appearance patterns, good hand feeling, bright color, high smoothness and high technical content, and can be recycled at 100%, belonging to environmental protection sole materials.

10, imitation leather bottom:

It is a typical rubber and plastic material with high elasticity. The main ingredient is rubber as the base material, and 10% ~ 30% high styrene is added to imitate the performance of leather soles. The appearance is similar to that of natural sole leather, with grain patterns, and the products made of it are light and clear. Wear light and comfortable, no noise, non-slip and wear-resistant. This kind of sole has good elasticity, high hardness and rigidity, and its performance is very similar to that of natural leather. Although it is not as breathable and hygroscopic as natural leather, it also has the advantage of not being afraid of water.

1 1、BPU

It is a new modified polyurethane (PU), which has the advantages of environmental protection, low density (ultra-light), thick surface crust (smooth surface), good toughness, not easy to break and good weather resistance. It can replace EVA outsole, EVA waterproof platform, PVC blowing platform, wooden shoes, PVC foaming platform and so on.

This modified polyurethane wood-like material is light, beautiful in wood grain, temperature resistant and adjustable in degradation cycle, and it is a new type of green material.

12, reinforcement (Jin) bottom:

Thermoplasticelastomerbottom, a light yellow translucent sole, is named for its color and properties like beef tendon. "Tendon bottom" means as strong as tendon, but tendon bottom is made artificially, also called thermoplastic elastic rubber bottom. (It started with rubber beef tendon. At that time, this color was mainly made into sandals and connected with other materials, which was called beef tendon color. It can be said that beef tendon originally refers to natural rubber, and later evolved into a color card name. )

Tendon base can be made of rubber or plastic, and thermoplastic rubber (TPR) is the most convenient. This kind of sole has beautiful appearance, good elasticity and wear resistance, comfortable wearing and no noise when walking. It is a good sole material for travel shoes and shoes for daily life.

Rubber beef tendon: it will turn white after a long time, and there will be a layer of misty secretion on the surface; Cut a little with a blade and ignite it with fire until it is black and gray, leaving a little white solid that is difficult to fall off when burning, and there is a little black smoke in the stench of rubber. With the development of technology, some misty secretions of rubber beef tendon may not appear. )

TPR beef tendon: cut a little with a knife and light it with fire. When burning, there is black smoke mixed with a little gray-green, dripping with a sticky smell. The burning time is faster than that of rubber beef tendon, leaving a little black coke solid.

13, Minolta:

Minai soles (also called Ban, Lido Sticker and Rubber Imitation Leather Shoes soles) are actually rubber soles, but the processing methods are different. Naphthalene glycol is cheaper than it.

Minolta's main component is rubber, which is fine in texture and resistant to abrasion and twists and turns. It is infinitely extended, with a general width of 1 m, and is cut into 2 meters after coming out of the drum. It must be punched with a punching knife and then polished and colored. Generally, the thickness is between 3 and 5 mm, depending on the demand.

14, raw rubber bottom:

Raw rubber is the general name of rubber that has not been plasticized and mixed, and it is the most fundamental raw material for manufacturing mixed rubber, including natural rubber and synthetic rubber. What we usually call the wear resistance of raw rubber soles, the raw rubber soles here are actually cooked rubber soles, which are treated raw rubber, but the appearance is just like raw rubber, which is a mistake we have established.

Raw rubber has poor molding effect, low hardness and density, and is easy to wear and break; However, the characteristics of mature rubber are just the opposite, with better wear resistance and toughness. Ripe rubber is widely used, such as automobile tires; Raw rubber is only used to make low-grade daily necessities, such as slippers.

15, at the bottom of the computer:

Polycarbonate (PC) resin is a kind of excellent thermoplastic engineering plastic, which has outstanding impact resistance, good creep resistance and dimensional stability, heat resistance, low water absorption, non-toxicity and excellent dielectric properties. It is the only product with good transparency among the five kinds of engineering plastics, and it is also the fastest-growing general engineering plastic in recent years.

The PC base has the characteristics of good weather resistance, beautiful appearance, impact resistance, high light transmittance and strong plasticity.

16, ABS bottom:

Acrylonitrile butadiene styrene polymer.

ABS engineering plastics are generally opaque, light ivory in appearance, non-toxic, tasteless, tough, hard and rigid, burning slowly, with yellow flames and black smoke. After burning, the plastic softens and burns, giving off a special cinnamon smell, but there is no melting and dripping phenomenon.

It has excellent comprehensive properties, excellent impact strength, good dimensional stability, electrical properties, wear resistance, chemical resistance, dyeability and good molding processability. Disadvantages: low thermal deformation temperature, flammability and poor weather resistance.

17, PE bottom:

PE plastic (polyethylene), English name olyethylene.

Excellent corrosion resistance and electrical insulation (especially high frequency insulation), high rigidity, hardness and strength, small water absorption, good electrical performance and radiation resistance.

The softness, elongation, impact strength and air permeability of PE sole are good; Good fatigue resistance, wear resistance and corrosion resistance.

18, PP bottom:

PP plastic (polypropylene), English name olypropylene.

It is a linear polymer with high density, no side chain and high crystallinity, and has excellent comprehensive properties. When uncolored, it is white, translucent and waxy; Lighter than polyethylene. Transparency is also better than polyethylene, and rigidity is also greater than polyethylene.

PP sole has low density and good strength, rigidity, hardness and heat resistance. It has good electrical properties and high frequency insulation, is not affected by humidity, and is corrosion-resistant. But it is fragile at low temperature, not wear-resistant, easy to age and easy to decompose under certain conditions.

19, bottom of SBR:

Styrene-Butadiene Rubber (SBR) is a polymer elastomer material polymerized with butadiene and styrene as main monomers, with uniform and pure quality and few impurities. Soluble in benzene, toluene, gasoline, chloroform and other organic solvents. Unsaturated double bonds in styrene-butadiene rubber molecules and vulcanizing agents form a cross-linked network structure through substitution or addition reaction, and the styrene-butadiene vulcanized rubber reinforced by reinforcing agents has good physical and mechanical properties.

The vulcanization speed of styrene-butadiene rubber is slow, but the vulcanization straightness is good, it is not easy to over-vulcanize, and it has excellent properties such as aging resistance, heat resistance and wear resistance.

20, cork, wooden bottom

2 1, other classes:

SBR, TPR, ABS and PVC/EVA/PU recycled materials; Hemp spinning, wool spinning, etc.