Classification and Objects of Scouring

Classification and Objects of Scouring


Desized textile materials till contain oil, fats and waxes which are removed by alkali or detergent is called scouring.

Classification and Objects of ScouringObjects of scouring/Objectives of Scouring

  1. To remove natural and added oils, fat and wax’s from the textile materials.
  2. Improve hydrophylicity.
  3. Improve absorbency.
  4. Prepare for the next process.
  5. To get uniform bleaching result.

Flow chart of scouring

Flow chart of scouring

Flow Chart of Scouring

Scouring Process

There are two types of scouring process-

  • Hand Scouring
  • Machine Scouring

Hand Scouring

In this process fabric is boiled in an open trough with NaOH common soda and t.r oil for after a few hours. But be careful so that fabric does not come in contact with air otherwise fabric strength can be reduced. After that wash with cold water sour with dilute HCl to remove alkali from the fabric.

Machine Scouring

Now a day’s various types of machines are available for scouring with alkali. This alkali treatment can be divided into three categories.

  • Lime acid soda process.
  • Caustic soda process.
  • Soap soda process.

Written by

Engineer Sheikh Nurja

B.Sc engineer of textile

Merchandiser at buying house

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