Textile Processing Guide

Ammonia Mercerising of cellulose fibers


Cotton fabric Mercerising
Mercerising methods, recipe, and other features...

Recovery of Alkali from Mercerising
Recuberrating wash alkali after mercerising...

Ammonia Mercerisation
Ammonia Mercerisng Method, effect of Ammonia Mercerisation ...

What is a chain Merceriser?
Features of chain mercerising machine ...

What is a chainless Merceriser? What are the advantages one gets over chain Merceriser?
Features of chainless merceriser ...

Yarn Mercerising
Yarn Merecerising method, machine details ...

Stable shaping process technology opens the doors to fashion, a transitory fantasy determining the form, color, design and new effects of textiles and clothing. This process, presently, is typical in fashionable cotton industry products and is also one of the mature technologies developed in textile and fibre industry. The features such as fitness, comfort, easiness to stretch, etc, are highly desired today.

New purified cotton is a quality product material made using this high technology, that overcomes the traditional flaws of shrinkage, wrinkled clothes, and improves dramatically the natural properties of softness, comfort of cotton.

 

Liquid ammonia finishing or Liquid ammonia mercerising’ refers to the process that truly revives the cotton through the expansion of liquid ammonia at an ultra-low temperature inside the fibre. When the cotton fibre is treated at -33ø C liquid ammonia, ammonia at ultra low temperature will permeate immediately into the crystallographic structure of the fibre. Stress will be released through interior expansion, which makes the fibre cavity round and smooth and rearranges the molecular structure, thus the crystallographic structure becomes slack and stable. This physical change makes the surface of the entire fabric smooth and bright, with solid and soft feel, so elasticity and wash-and-wear is fully achieved.

 

The benefits of liquid ammonia mercerising lies in the following effects that can be achieved simultaneously:

The superb appearance, feel and brilliancy of dyed shades, make the buyer select the ammonia mercerised garment/fabric rather than the regular caustic mercerised one.

  • Low shrinkage post washing
  • Increase in wrinkle resistance
  • Increase in fibre elasticity
  • Softer to touch and brighter
  • Enhanced tensile strength
  • Dimensional stability
    Resistance to abrasion
    Dyeing uniformity, dyestuff affinity, colour solidity
    Wash and wear properties

Ammonia-mercerising-range
Ammnoia Mercerising continuous processing machine(ref)

Mercerising and resin finishing:

Compared to mercerising or resin finishing, though mercerising has the ability of anti-shrinkage, it cannot attain anti-crease and softness; while resin finishing enhances anti-crease with the strength decreasing.

Source: AKM Trading Corporation

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