Garment Washing: An Effective Process for Beautification of Garments (Part-4)

Garment Washing: An Effective Process for Beautification of Garments (Part-4)
Rahat Khan
Dept. of Apparel Manufacturing
Atish Dipankar University of Science and Technology
Cell: +8801717781833
Email: rahat.info@gmail.com

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4.3.3 Stone enzyme wash:

Step 1: Desizing

Recipe:
  • Soda ash : 250gm
  • Antistant : 50gm
  • Time : 15min
  • Temperature : 60 oc
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water.
  • At first the machine was started running.
  • Soda ash was added.
  • Antistant was added.
  • The process was continued for 15 min at a temperature of 600c.
  • Then the liquor was dropped.
Fig: Flow diagram of desizing
Step 2: Enzyme wash

Recipe:
  • Acetic acid : 20gm
  • Antistant : 20gm
  • Powder enzyme : 200gm
  • Liquid enzyme : 150gm
  • Time : 25min
  • Temperature : 450C
  • Pneumic stone : 7 to 10 kg (Depending on garments weight)
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water.
  • At first the machine was started running.
  • Acetic acid was added.
  • Antistant was added.
  • Powder enzyme was added.
  • Then liquid enzyme was added.
  • The process was continued for 25 min at a temperature of 450c.
  • Then the liquor was dropped

Fig: Flow diagram of enzyme wash
Step 3: Hydro extraction
After drop the liquor, the stone enzyme wash garments turned to Hydro extractor machine to remove excessive water from the garments

Step 4: Drying
After hydro extraction the garments are turned to drying machine for better drying. This process continued for 15 minutes.
Fig-8: Stone enzyme wash
4.3.4 Light wash:

Step 1: Desizing

Recipe:
  • Soda ash : 250gm
  • Antistant : 50gm
  • Time : 15min
  • Temperature : 600C
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water.
  • At first the machine was started running.
  • Soda ash was added.
  • Antistant was added.
  • The process was continued for 15 min at a temperature of 600c.
  • Then the liquor was dropped
Fig: Flow diagram of desizing
Step 2: Enzyme wash

Recipe:
  • Acetic acid : 20gm
  • Antistant : 20gm
  • Powder enzyme : 200gm
  • Liquid enzyme : 150gm
  • Time : 25min
  • Temperature : 450c.
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water.
  • At first the machine was started running.
  • Acetic acid was added.
  • Antistant was added.
  • Powder enzyme was added.
  • Then liquid enzyme was added.
  • The process was continued for 25 min at a temperature of 450c.
  • Then the liquor was dropped
Fig: Flow diagram of enzyme wash
Step 3: Bleach wash:

Recipe:
  • Stabilizer : 200gm
  • H2O2 : 500gm
  • Temperature : 200C
  • Time : As required
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water
  • At first the machine was started running.
  • Stabilizer was added
  • H2O2 was added
  • The process was Continued for required time at a temperature of 200C
Fig: Flow diagram of bleach wash
Step 4: Hydro extraction
After drop the liquor, the light wash garments turned to Hydro extractor machine to remove excessive water from the garments

Step 5: Drying
After hydro extraction the garments are turned to drying machine for better drying. This process continued for 15 minutes.
Fig-9: Light wash
4.3.5 Potassium permanganate:

Step 1: Desizing

Recipe:
  • Soda ash : 250gm
  • Antistant : 50gm
  • Time : 15min
  • Temperature : 60ْc
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water.
  • At first the machine was started running.
  • Soda ash was added.
  • Antistant was added.
  • The process was continued for 15 min at a temperature of 600c.
  • Then the liquor was dropped
Fig: Flow diagram of desizing
Step 2: Enzyme wash

Recipe:
  • Acetic acid : 20gm
  • Antistant : 20gm
  • Powder enzyme : 200gm
  • Liquid enzyme : 150gm
  • Time : 25min
  • Temperature : 45 oC
Procedure:
A lot size of 5 kg garments was considered. Water was added at the rate of 1:5 liquor ratio i.e. 25 kg water.
  • At first the machine was started running.
  • Acetic acid was added.
  • Antistant was added.
  • Powder enzyme was added.
  • Then liquid enzyme was added.
  • The process was continued for 25 min at a temperature of 450c.
  • Then the liquor was dropped
Fig: Flow diagram of enzyme wash
Step 3: Spray
Spray with potassium permanganate as per required depth of shade

Step 4: Tinting
  • Brown color (reactive dye) : 0.001 gm
  • Salt : 500gm
  • Temperature : 500C
  • Time : 15min
Step 5: Hydro extraction
After drop the liquor, the Potassium permanganate wash garments turned to Hydro extractor machine to remove excessive water from the garments

Step 6: Drying
After hydro extraction the garments were turned to drying machine for better drying. This process continued for 15 minutes.
Fig-10: Potassium permanganate

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