What are the main methods of denim fabric adulteration in the market?
There are usually raw material adulteration and tissue adulteration. Raw material adulteration mainly refers to the use of relatively inexpensive chemical fiber instead of cotton. And the use of inferior raw materials such as noil and recycled cotton that seriously affect human health. The spun yarn is used for the weaving of denim. After being dyed into a dark color, it is usually indistinguishable by consumption. 10 ring-spun slub yarns with better quality on the market usually cost 23,000 yuan/ton. But the yarn spun from recycled cotton only costs a few thousand yuan a ton, and the price difference is staggering. The use of inferior spandex yarn in the stretch fabric causes the product to have no elasticity after several washings. At the same time, the price of dyes used in yarn dyeing varies greatly. Poor quality cloth is usually dyed with the cheapest dye.
Tissue adulteration means that some fabrics look the same as qualified fabrics. However, the organization is obviously sparse, and the cloth style is far inferior to qualified products, which means cutting corners. In addition, generally poor quality cloth is usually woven out of old machines. The price is only less than one-tenth of the imported new loom. Due to the limitation of equipment, the cloth woven is not only single in organization, but mainly in large-scale goods. And the style of the cloth is obviously very poor, and there are a lot of idiots on the cloth.
