Normally garment or apparel washing
means cleaning of dirty garments with soap or detergent. But it is not that
garments washing. An industrial apparel washing is a technology. The technology
which is used to modify the outlook, appearance, comfort-ability and design of
the ready made apparel made from solid color dyed or pigment printed fabric is
called garments
washing.
Garment washing machine
Apparel washing industries need the
following machines for various types of apparel washing. The most common
machines are:
- Garments washing machine
- Hydro-extractor
- Garments drying machine
- Sand blasting unit
- Boiler for steam generation
- Wash water treatment plant
Garments washing machine is the main machine where most
apparel washing is done.
Various types of Garments Wash
Normal wash
Normal washing is the simplest type of washing with lowest
washing cost. By this system starch materials present in the new garment is
removed together with dirt, hence after wash the garments feel soft during use.
During normal wash on garments, washing effect could be varied by altering
washing temperature, washing time, quantity of detergent used etc.
Pigment wash
Pigment washing process is similar to normal washing
process. Apparels are made from pigment dyed or pigment printed fabric. Then the apparels are subjected to pigment
washing. By this washing, fading effect is produced in the garments.
Bleach wash
There is a similarity between bleach and pigment washing. In
both the cases, partial color fading effect is produced. In case of bleach
washing, the fabrics of the apparels are normally dyed with direct or reactive
dye.
Stone wash
It is done on the garments made from heavy fabrics like
denim and jeans. It is a very popular wash. Due to this type of washing,
different types of irregular color fading effect is produced. Moreover,
shrinkage also occurs in the apparels resulting correct size of the garments.
Acid wash
Apparels made from denim and heavy jeans fabric are normally
considered for acid wash. Fading effect is produced in irregular pattern by the
use of pumic stone. Garments like trouser and jackets are frequently washed by
acid washing technique.
Enzyme wash
Enzyme wash is done on the apparels made from heavy fabrics
like jeans and denim. Cellulose enzyme is used for this type of wash. This
cellulose enzymes hydrolysis the projecting hairy cotton fibres of the apparels
fabric surfaces and also removes color. Use of stone makes brushing action on
the garment fabric surface; as a result irregular color fading effect is
produced and also contributes to removal of projecting hairy cotton fibres.
Sand blasting
It is a mechanical process of faded effect formation of
apparels made from heavy fabrics like denim and jeans. At present time sand blasting
is a very popular garments washing. The sand blasting process is normally
followed by a wash or dyeing process. The subsequent wash may be a normal,
bleach, enzyme wash etc.
Super white wash
Super white washing is done on the apparels made from cotton
grey fabrics. Due to this type of washing, the apparels become extremely white.
Washing is done in three steps.
Caustic wash
In the case of caustic wash, pre-treatment and printing of
the garments fabric is little bit different than the normal process. Normally
printing on fabric is done after pre-treatment of grey fabric that is desizing,
scouring and bleaching. But in case of caustic wash, printing is done on the
fabric without pre-treatment of the fabric. These fabrics are used to
manufacture apparels. Then the apparels are subjected to caustic wash. During
caustic wash 20% - 30% pigment is washed out, as a result different color
fading effect is produced in the apparels.
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