After describing the harmfulness of foreign fibers in cotton, cotton yarn, and fabric, the source of foreign fibers in cotton is analyzed, and control methods for foreign fibers in cotton, cotton yarn, and cotton are proposed. The cotton is determined according to the actual needs of the spinning mill. The type of purchase and the place of origin are important factors to ensure the quality control of cotton yarn heterogeneous fiber content and cotton cloth heterogeneous fiber content quality. It clarifies that cotton must be picked, transported, stored, and processed in different ways and cotton of different origin when cotton procurement is performed. Purchasing is strictly in accordance with the standard for controlling monosex fibers, and the quantity of heterosexual fibers in cotton yarns and cotton cloths must also be strictly controlled in accordance with the standards. It is explained that only the method of picking cotton by machines and manually picking cotton heterosexual fibers The most effective way to reduce the number of foreign fibers in cotton yarn and cotton cloth.
1. The content of foreign fibers in cotton in different countries and different places is completely different.
There are many countries producing cotton in the world, and there are many places in China to produce cotton. Because of the different picking and processing methods of these cottons, the amount of heterosexual fibers in cotton is also different, and different countries, different places of origin, and different ginning factories The packaging and transportation forms of cotton are also different, which will also seriously affect the amount of foreign fibers in cotton and the removal of cotton foreign fibers before spinning. For the presence or absence of foreign fibers in cotton, all cotton will be affected by The factors of picking, processing, transportation, and packaging all have more or less the presence of foreign fibers. However, some cotton can be effectively spun without the need for manual hand picking after processing. Quite a few, some cotton has a large number of foreign fibers in the cotton yarn after spinning, which makes different countries, different places, and different ginners understand the harm of spinning to the amount of foreign fibers in cotton. Different cotton yarns As a result of the number of heterosexual fibers, for the heterosexual fibers, the cotton yarn with fewer requirements and fewer yarns is spinning. Be required before the number of foreign fibers of cotton or cotton origin is used, otherwise the spun yarn fabric to achieve the required number of foreign fibers exceptionally small, the desired effect is less realistic.
3. Analysis of the number of foreign fibers in Chinese cotton
China is the world's largest cotton producing country. Cotton planting area is widely distributed. 90% of cotton production comes from the north of China, and 35% -40% of cotton is produced in China's Xinjiang, which is 45%- 50% of cotton production is in order in Shandong, Henan and Hebei. The cotton production in other northern provinces is only about 5% -10%. Of course, there are also a large number of cotton production in Hubei, Jiangsu and Hunan provinces in the southern Yangtze River basin of China. In the production of cotton, the content of heterosexual fibers in China ’s current state of cotton varies greatly depending on the planting area. Except for the small number of heterosexual fibers produced by the Xinjiang Construction Corps, the content of heterosexual fibers in cotton is about 30 per package. Within the Yangtze River Basin, the Yellow River Basin, the Huaihe River Basin, and other provinces and regions in China, the content of heterosexual fibers in cotton is relatively high. The number of heterosexual fibers ranges from 50 to 1,000 / contained. The most terrible thing is the length of cotton An animal's hair and some single colored fibers and chemical fibers. The most critical factor that causes a large number of these foreign fibers is China's cotton. Reduced picking, processing and production conditions are low, and there are too many farmers growing scattered cotton. At the same time, cotton acquisition agencies lack unified management of them and they rarely harm heterosexual fibers in cotton processing, spinning, weaving, and dyeing. Publicity and education of sexual knowledge, although there are currently a small number of machine-picked cotton in our country, but because of the relatively rough cotton-picking machines in China and the irrational processing technology, the intrinsic quality of cotton is seriously reduced, which is the heterogeneity of cotton The fiber is under control but is not welcomed by textile mills due to the inherent poor quality of cotton. Therefore, to reduce the number of foreign fibers in cotton during cotton picking and processing in China, we must first increase the number of people during cotton picking and processing. Emphasis on shaped fibers, control efforts, and propaganda efforts, followed by intensive management of cotton planting, picking, transportation, seed cotton containers, and processing. Only by adopting strict control in this way can we greatly reduce the amount of foreign fibers in China's cotton.
Fourth, the conclusion
The source of heterosexual fibers in cotton is mainly produced by cotton during picking, transportation, storage, and processing. The amount of heterosexual fibers in cotton will seriously affect the quality of cotton, spinning, and fabric.
❷The content of heterogeneous cotton in cotton is different in different countries, different regions, different places of origin, and different methods of picking and processing. From the country and regional division, the heterogeneity in cotton of the United States, Australia, some Uzbekistan, and China's Xinjiang Production and Construction Corps The number of fibers is the smallest; from the point of view of cotton picking, transportation, storage, and processing methods, the machine picks cotton in closed transportation, storage, and processing.
❸The methods of removing foreign fibers in cotton and cotton yarn include manual picking of cotton, discharge of foreign fiber remover, and electronic yarn clearer for cutting foreign fibers. These methods have certain benefits in removing foreign fibers. Disadvantages. Relatively speaking, the method of manually picking foreign fibers in cotton is the most effective for reducing the number of foreign fibers in cotton and cotton yarn.
❹For cotton of different origins and different picking methods, there must be quality control standards for cotton foreign fibers when the cotton is inspected. Similarly, cotton after artificial conditions must also have foreign fiber control standards; the quality requirements for cotton yarns are also raised. The amount of heterogeneous fibers in cotton yarns will be controlled by the standard, which will support the quality control of heterogeneous fibers in fabrics. In addition, according to the amount of heterogeneous fibers in cotton yarns and fabrics of different qualities, it is necessary to formulate control standards for the quantity of heterogeneous fibers in cotton yarns and fabrics. Spinning process, cotton picking, transportation, storage, processing is the key to controlling the quantity of foreign fibers.
