2. The so-called vulcanized shoes are shoes made of vulcanized soles and uppers. Vulcanized shoes and cold-bonded shoes are similar in appearance and shape. The key is to look at their craftsmanship and texture. Vulcanized shoes have limited materials, high temperature resistance and temperature difference resistance, and are molded in vulcanizing tanks. They are characterized by all-rubber soles, which are non-slip and wear-resistant. At present, it is relatively unpopular in the market, and most of them are professional skateboarding shoes. Because rubber is used a lot, the cost is relatively high.
3. The material of cold-bonded shoes is put into the mold and extruded, bonded with rubber, and molded once, which is characterized by softness, light weight, softness, non-slip and poor wear resistance. It is the general trend of the industry at present, because the materials are cheap and the process cost is low, and the later maintenance of vulcanized shoes is easier. The representative brand is HIGHBUY SHOES, embracing the footwear industry and focusing on comfort.
4. Cold-sticky shoes are high-temperature non-sticky shoes, and those famous shoes in Italy and Spain belong to this category. Generally, cold bonding assembly line processing is needed (except for family workshops). Cold-bonded soles are generally provided by factories that are specially responsible for playing soles. If they don't have a mold for soles, they need to open the mold separately. Generally, the sole factory opens the mold for free 1w or more. The practice is to use plastic shoe last to shape the upper and stick it on the sole. Advantages: Fine workmanship, and better shoes.
5. Disadvantages: the daily output is small and the price is high, which is generally suitable for medium-sized and above factories to form a scale. The vulcanized sole of vulcanized shoes is vulcanized rubber. Vulcanized rubber products are not easy to age and crack, and have good elasticity and heat resistance. Now rubber products are basically this kind of rubber, also called cooked rubber, collectively referred to as rubber or rubber.
6. Vulcanized shoes are sports and leisure shoes made by vulcanizing the soles and uppers. Vulcanized shoes are treated with sulfur to increase the elasticity and hardness of rubber for shoes, that is, after vulcanization.
: Vulcanized shoes
brief introduction
Vulcanized shoes Vulcanized shoes are made of rubber, fabric or leather as the upper and rubber as the base. They are processed and molded by pasting, molding or injecting glue, and then vulcanized at a certain temperature and pressure, giving the upper and sole high strength and elasticity, and firmly combining them, so they are called vulcanized shoes. Leather shoes with vulcanization technology are also called vulcanized leather shoes.
2. Advantages
Fashion, good-looking, classic jeans; Dirty is relatively easy to take care of and the price is moderate.
The word "vulcanization" has its historical significance. It gets its name from the fact that the original natural rubber products were crosslinked with sulfur as crosslinking agent. With the development of rubber industry, various non-sulfur crosslinking agents can be used for crosslinking. Therefore, the more scientific meaning of vulcanization should be "cross-linking" or "bridging", that is, the process of linear polymers forming network polymers through cross-linking. Physically, it is the process of transforming plastic rubber into elastic rubber or hard rubber. The meaning of "vulcanization" includes not only the actual crosslinking process, but also the method of producing crosslinking.
By measuring the tensile strength of rubber (or vulcanizer), it can be seen that the whole vulcanization process can be divided into four stages: vulcanization induction, pre-vulcanization, normal vulcanization and over-vulcanization (for natural rubber, it is vulcanization recovery).
During the induction period of vulcanization (scorch time), crosslinking has not yet started, and the compound has good fluidity. This stage determines the scorch performance and processing safety of the compound. At the end of this stage, the compound begins to cross-link and loses fluidity. The length of vulcanization induction period is not only related to the nature of raw rubber, but also depends on the additives used. For example, a longer scorching time can be obtained by using a delay accelerator, and it has higher processing safety.
After the induction period of vulcanization, it is the pre-vulcanization stage of crosslinking at a certain speed. The crosslinking degree in the pre-vulcanization stage is low. Even in the later stage, the tear strength and elasticity of vulcanizate can not reach the expected level, but the tear and dynamic cracking properties are better than the corresponding normal vulcanization.
After reaching the positive vulcanization stage, the physical properties of vulcanized rubber reach or approach the optimal point respectively, or reach the comprehensive balance of properties.
After the normal vulcanization stage (vulcanization flat zone), it is the over-vulcanization stage. There are two situations: natural rubber "reverts" (tensile strength decreases), and the tensile strength of most synthetic rubber (except butyl rubber) continues to increase.
For any rubber, vulcanization not only produces cross-linking, but also breaks the production chain and molecular chain due to factors such as heating. This phenomenon runs through the whole vulcanization process. In the sulfur-over stage, if crosslinking is still the main method, the rubber will harden and the tensile strength will continue to rise. On the contrary, rubber will soften, that is, return to its original state.
3. Maintenance methods
First, clean your shoes regularly. After the vamp is dirty, gently wipe it with a soft rag dipped in water or detergent, and never brush it with a brush.
Second, leather sports shoes should be oiled to ensure leather toughness.
Third, you can't use bleach when cleaning.
Fourth, avoid water seepage, exposure and open flame baking; Avoid direct sunlight after washing to avoid aging, deformation, fading and mesh breakage.
5. Avoid contact with sharp objects and chemicals.
Six, keep more than two pairs of replaceable shoes, let the shoes take turns to rest.
Seven, pay attention to special shoes, casual shoes, sandals should not do strenuous exercise, indoor sports shoes should not do strenuous exercise outdoors.
Eight, when using, the outsole should avoid contact with oil or other corrosive agents. If it is polluted, wash it with water immediately.
Nine, shoelaces/magic belt should not be tied too tightly, it is advisable to move your feet, otherwise it will affect your comfort.
Ten, when not in use, take out the insole and put the shoes in a dry and ventilated place, which is convenient for the shoes to emit heat and restore to their original state.
Eleven, try to avoid squeezing, so that shoes remain intact and not deformed.
Twelve, when not used for a long time, it needs to be washed and dried, wrapped in paper and stored in a dry place.
13. Avoid high temperature baking. When soaked in water, you can put paper towels in your shoes to absorb moisture and put them in a ventilated place to dry.
Baidu encyclopedia: vulcanized shoes