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Denim Mercerizing
In the fabric market, mercerization plays an important role. Mercerized fabric is more suitable than un-mercerized fabric. In the denim industry, the mercerizing process is different from the other mercerizing processes. In general, mercerizing cotton is done before dyeing, but for denim, mercerizing is done after dyeing and weaving which is described below.
Process Flow Chart of Denim Mercerization
The following is the process flow chart for cotton mercerizing denim. They are-
Warping
↓
Dyeing and Sizing
↓
↓
↓
Washing (In mercerizing machine)
↓
Mercerization
↓
Finishing without Singeing
↓
Steps of Fabric Processing in Mercerization Machine
In mercerizing machine, the process is done sequence and simultaneously. The first step is washing then mercerization is done in the same machine. Anyhow the 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
- Then, 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
- Then, 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%
Above all, there is a lot of mercerizing machines available in the market. Additionally, among all of the mercerizing machine brands, DHALL is the 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 buyer’s requirement.
I’m a textile engineer who is passionate about writing about the textile industry. With a B.Sc. in Textile Engineering, I’ve gained extensive knowledge about textile manufacturing and sustainable practices. My focus revolves around refining manufacturing processes, maintaining product quality, and staying updated on the latest textile technology advancements. If you’re interested in collaborating on articles or have any pieces you’d like to submit, let’s connect and discuss further!
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