Classification of shoes and craft
Shoes is that people's daily necessities. Global footwear production has more than 12 billion pairs, the annual trade volume reached more than 700 billion dollars, China has become the world's largest footwear producer and exporter. Has more than 20,000 manufacturers, variety, yield more than 50% of the world, accounting for 25% of total trade.
First, the shoes Category:
(A) molded shoes: shoes produced by molding process called molded shoes. The more varieties, with every power shoes, labor protection shoes and everyday wear shoes. Characterized by low production costs, solid shoes, not easily deformed, easy to open plastic and the bottom of the water seepage.
(B) sewing shoes: is the silk thread, twine, nylon suture lines, suture material forming the upper and soles of shoes. Features are: a solid structure, durable and durable.
(C) the cloth shoes: their production methods, there are two, one for "hot curing paste legitimate" and the other for "cold bonding method." In recent years, with the "cold bonding method," the proportion of production increased year by year. Because the "cold bonding method" has lightweight, comfortable, beautiful of, health-oriented features. For example, our various daily wear shoes cloth shoes belong to class.
(D) All shoes: shoes production methods can be divided into: molding method, paste method, injection pressure method, impregnation and stamping method. Paste method is the oldest method, the current production of shoes in most cases, paste method.
(E) Training shoes: sneakers have said, exercise shoes, fitness shoes, casual shoes and so on. Features comfortable, lightweight, non-slip, foot feeling good, the best morning exercise or travel. Training shoes with adhesive manufacturing process technology, process and seam adhesive injection pressure process (also known as injection process).
Second, the production process:
Shoe-making process is in changing the current stage of development, now our existing shoe-making process as outlined below:
(A) the seam technology
This was the traditional footwear industry processing technology, high-end shoe production process. Which is characterized by "line" stitched together, means the shoe uppers and soles of the structure together is over wax ramie, nylon lines, by hand or machine stitched into a shoe,
(B) adhesive process
60 years developed a new technology. Shoes shoe adhesive legal process of new technologies, it has the characteristics of workers, material saving, high-yield characteristics of this process stand out is the assembly of the production, use adhesive bonding means forming at the end with a strong adhesive through mechanical gas (oil) pressure bonded into shoes.
(C) curing process
Through the curing process, the rubber from the role of cross-linked and modified to enhance the physical properties of rubber, rubber products to improve the service life. This process is widely used in industrial production shoes one of the methods.
(D) Note (extrusion) Plastics Technology
This process is characterized by mechanized production, refers to the steel (aluminum) die-shaped end of the system by automatically quantitative injection molding machine plastic injection mold, high temperature plastics to make it with hot glue as shoe uppers.
(E) molding process
This process is characterized by high pressure combined with the mold, that is steel (aluminum) die-shaped end of the system, the quantitative raw rubber into the mold, the upper cover mounted on aluminum lasts, and then placed in plastic material, through pressure and heat to the surface with the help of rubber vulcanization molding glue.
| Updated:2011.11.22 Source: Clicks:1618
