Dyeing and finishing is a process system that improves the performance of textiles through chemical treatment and physical mechanical processing, covering pre-treatment, dyeing, printing, post finishing and other processes. This process can improve fabric fastness, functionality, and appearance texture, and is suitable for various materials such as cotton, spandex, denim, etc. Modern technology combined with innovative processes such as biological enzyme treatment and gas-liquid flow dyeing effectively solves industry problems such as oil residue and fiber deformation, and achieves environmentally friendly production through three-stage temperature control, pH slip and other technologies

By 2025, the industry will fully implement OEKO-TEX certification, requiring that the free formaldehyde content in fabrics be ≤ 20mg/kg; The residual amount of heavy metals is below the detection limit; The proportion of biodegradable additives used exceeds 65%. The system solution of Chuanhua Textile Chemistry has passed the certification, achieving a 30% reduction in COD value of wastewater