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[Chemical Knowledge]：What are the upstream raw materials of the yarn? What do the downstream products contain?

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Yarn plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are quite rich. In this paper, the upstream and downstream related products of yarn will be introduced in detail to show its important position in the field of chemical production.

1. yarn upstream related products

1. oil and gas
yarn production raw materials mainly come from oil and gas. By cracking petroleum and natural gas, basic organic raw materials such as ethylene and propylene can be obtained, and then various chemicals such as polyester and nylon can be produced. These chemicals are important raw materials for yarn production.
2. Coal
Coal is also one of the important raw materials for yarn production. Through coal chemical technology, coal can be converted into basic chemicals such as methanol and ethylene glycol, which can be used to produce yarn.
3. Ore
Some ores are also sources of raw materials for yarn production, such as iron ore and aluminum ore. These ores are smelted and processed to obtain metals such as iron and aluminum, which are then used to produce metal yarns.

2. Yarn Downstream Related Products

1. Textile
Yarn is one of the main raw materials of textiles. Therefore, the downstream related products of yarns mainly include various textiles, such as clothing, home textiles, industrial textiles, etc. Different types of yarns can produce textiles with different styles and properties to meet people's diverse needs.
2. Non-woven
non-woven fabric is a non-woven material made of fibers bonded by physical or chemical methods. Yarn can be used as one of the raw materials for the production of non-woven fabrics, and is used to produce various non-woven products, such as sanitary napkins, diapers, filter materials, etc.
3. Composite
yarn can also be used to produce various composite materials, such as glass fiber reinforced composite materials, carbon fiber composite materials, etc. These composite materials have the advantages of high strength and light weight, and are widely used in aerospace, automotive, construction and other fields.

In summary, yarn has a connecting role in the field of raw materials for chemical production, and its upstream and downstream related products cover many fields, which is of great significance for promoting economic development and technological progress.

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