Wet-Processing is the processing stage at which textile substrate is treated with colourants and/or chemicals, collectively referred to as inputs in GOTS terminology. This includes sizing, desizing, pre-treatment, dyeing, printing (including digital printing), finishing, laundry, etc.
Wet processing is a term used to describe a variety of methods that involve the use of water to process materials. Wet processing techniques are commonly used in the textile industry to transform raw materials into finished products. Wet processing is divided into two main categories: wet processing-I and wet processing-II.
Wet processing-II refers to the process of treating textiles with a variety of chemicals to achieve specific outcomes. The chemicals used in wet processing-II include bleaches, dyes, finishes, and sizing agents. The process is typically carried out in a series of steps, with each step using different chemicals and techniques to achieve the desired results.
One of the most common wet processing-II techniques is dyeing, which involves adding color to textiles using various types of dyes. Dyeing can be carried out using a variety of methods, including immersion dyeing, spray dyeing, and pad dyeing. Each method has its own advantages and disadvantages, and the choice of dyeing method will depend on the type of textile being processed and the desired outcome.
Another important wet processing-II technique is finishing, which involves applying a variety of chemical treatments to textiles to achieve specific properties such as wrinkle resistance, water resistance, or flame retardancy. Finishing can be carried out using a variety of techniques, including coating, spraying, and padding.
Overall, wet processing-II plays a critical role in the production of high-quality textiles. By carefully controlling the chemical treatments used in the process, manufacturers can achieve a wide range of desired outcomes, from vibrant colors to enhanced durability and performance.