Definitions of wet processing sequences

• Stitching: To produce a continuous strand of fabric by joining the grey fabrics so it gets easier to do the wet processing.
• Sewing: This a process of joining different parts of fabric by needle and sewing threads.
• Brushing: Before singeing brushing is done on the fabric to remove protruding fibres, dirt, dust etc.
• Singeing: singeing is a process of burning the floating fibres on the fabric surface, thus the surface becomes smooth.
• Desizing: Desizing is the step to remove the size materials from the fabric. This improves the absorbency of the fabric.

• Scouring: In this process, the fabric is treated with alkali (NaOH, Na₂CO₃, etc.) to remove fats, wax and oils so that the absorbency increases.
  
• Bleaching: Bleaching is a process of removing the natural color of fibre to make the white and lustrous.
• Washing: To remove the excess chemical substances the fabric is washed.
• Drying: To dry the fabric in certain temperature.
• Mercerizing: The fabric is treated with 20-22% NaOH for 2-3 minutes at room temperature. During mercerization yarn becomes swollen which makes the fibre cylindrical in cross-section. So, which gives a smooth reflection of light and makes the surface more lustrous.
• Dyeing: Dyeing is a process of applying color on the textiles materials by setting chromophore and auxochrome groups in its chemical structure.
• Fixing: In this step, the dyestuffs are fixed into the textile materials.
• After Treatment:
• Finishing: As per customer requirements the textile materials are further processed to maintain a certain quality.
• Inspection: The final product is inspected to find any faults and if none found they are compared with the requirements by the buyers. The material goes through several testing and measuring.
• Packing: Finally, the output is packed using polyethylene bags.

*To know more about each term wet processing click on them.