Process Flow Chart of Denim Mercerization | Cotton Mercerizing Techniques

In fabric market; mercerization plays an important roll. Mercerized fabric is more suitable than the unmercerized fabric. In denim industry, mercerizing process is different than the other mercerizing process. In general mercerizing of cotton is done before dyeing but for the denim mercerizing is done after dyeing and weaving which is described in below.

Process flow chart for cotton mercerizing of denim is given below:

Warping

Dyeing and Sizing

Weaving

Finishing

Washing (In mercerizing machine)

Mercerization

Finishing without Singeing

Inspection

Steps of fabric processing in mercerization machine: In mercerizing machine; the process is done sequencely. The first steps is washing then mercerization is done in same machine. Anyhow following task is done one by one in different stages of the machine part.

Washing:

  • Closed Tank-1: Desizing using detergent
  • Impregnation Tank: Desizing using detergent
  • Stabilization Tank: Water wash
  • Closed Tank-2: Water wash
  • Closed Tank-3: Water wash
  • Closed Tank-4: Water wash
  • Closed Tank-5: Water wash

Mercerization:

  • Closed Tank-1: Water Wash
  • Impregnation Tank: Caustic (NaOH) solution
  • Stabilization Tank: Steam supply
  • Closed Tank-2: Water wash
  • Closed Tank-3: Water wash
  • Closed Tank-4: Water wash (80°c)
  • Closed Tank-5: Acetic acid (CH3COOH)
  • Temperature in mercerizing- 41°c-43°c
  • Caustic (NaOH) concentration in bath- 250 g/l (500 g/l)
  • Bath pick-up- 95%

There are a lots of mercerizing machine available in the market. Among all of the mercerizing machine brand; DHALL is most popular for this operation. This machine is manufactured in India. This is the Combi-Soft & Flat Finish Range machine.

So, this denim mercerizing process should be accurate to fulfill the buyers requirement.

 

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