Normally we use the word ‘washing’ to mean cleaning. But in the case of garments, washing is not limited to this function. For garments, washing is not only required for cleaning but also required for improving fabric quality, increase the softness of fabric, reduce shrinkage, removing of dirt and for creating color effects. In other sense, washing is a technique which used to remove impurities dirt, dust, oil, etc. from the surface of garments, softness feeling of cloths, outlook fashion of the apparel and increasing colorfastness.
Classification of Garments Washing
According to the process of washing, garments washing is basically of two types; one is a wet process and other is a dry process.
Objectives of Garments Washing
Though garments washing is done to meet several objectives, among those followings are the most common.
- To remove size materials
- Impurities remove
- To increase color fastness
- For color fading
- For soft hand feel
- Fashion Garments
Chemicals use for Garments Washing
Several chemicals are used for garments washing. Here is the list of chemicals used in garments washing.
- Bleaching agent ( H2O2, KMNO4)
- Acid ( Acetic acid, phosphoric acid)
- Desizing agent
- The enzyme ( Bio- Chemicals)
- Anti-staining agent
- Salts Etc.
Washing Plant of Garments
Washing plant can be automated, semi-automated. An engineer is responsible for all process to control such as Garments, m/c, H2O, Chemicals, PH, etc.
Washing Condition of Garments
- Temperature up to 60̊ C
- Time Up to 60 min
- The concentration of chemicals Up to 15 g/L
Process Flow of Garments Washing
Batch selection => Loading into washing m/c => M: L (add water) => M/c running => Add chemical at adjust temp. and set time => Drain out => Hot wash/ cold wash => Softening => Unload => Hydro extracting => Drying => Quality check => Finishing
Flow Chart of Garments Washing
Written By: Mashud Rana Opurbo
Bsc in Textile Engineering (DIU) “24th Batch”
Industrial Engineer at Radisson Garments Ltd.
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