A lot of cotton factories all around the world produce tons of materials, which people use in their everyday life. In fact, there are dozens of cotton mills in each and every country because they make a lot of money and bring high profits to owners, directors and, of course, to the country. Cotton industry earns good money for national budgets because the turnover of cotton products grows from year to year. There are many customers who buy cotton materials and produce clothes and drapery. These customers are textile and weaving manufacturing factories. Almost all cotton factories produce cotton material, which has been widely used in textile industry. The range of cotton plants products includes cotton calce, cotton cellulose, cotton cloth, cotton pulp, cotton rag paper, cotton ribbons, cotton sheets, cotton-wool and so on. They also produce cotton threads and special floss threads for making denim jeans, denim blue and Levi Strauss jeans. Denim is known to be a very strong and good material. Cotton factories employ state-of-the-art equipment to produce high-quality goods. They include a cotton-spinner machine, cotton-planter, cotton-picking spindle and cotton-picker drum (these two machines are used in complex). Supplementing the line of cotton machinery are a cotton cleaner, cotton combine, cotton-harvesting machine, cotton-enamel covered machine and ordinary cotton machine. With the help of these techniques, the process of producing cotton materials is fast and efficient. That's why, cotton production has a high demand on the market of raw materials for the weaving industry. When all necessary cotton and denim elements are delivered to the factory, a manufacturing process begins. Directors of textile factories buy cotton materials at cotton factories and use them in their machinery for producing clothes, like sweaters, denim jeans (from denim blue material) etc. But in order to create quality denim jeans, there should be effective technical equipment at the fabric factory. That's why, there are many machines which work at the weaving factories and make denim clothes. There is such technical equipment, like fabric bursting tester, fabric collector, fabric divertor (it produces warm sweater and shorts), fabric filter, which controls the quality of material. In the weaving factory a weaver's loom is used. It helps to weave denim threads and to make excellent denim jeans of different colors, including black, white and brown. But the most popular color is blue, and, that's why, the factory uses denim blue color. Sometimes defects can be found in cotton denim material. They can be big and small fabric defects, fabric holes knitting defect and others. Fabric filter has to detect these defects and discard the cloth that does not meet the corresponding requirements. It is important to understand that every fabric factory of the whole textile industry wants to make perfect production with the help of advanced equipment. And every such a mill wants to make production which will be competitive on the open fabric market.