72163022 kuster calico mercerization
Post on 01-Nov-2014
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Mercerising Range
Housing segments consist of stainless steel material All bottom rolls are fixed steel construction and rotates on
flange type sealed bearings Two adjacent bottom rollers support a rubber covered roller
and forms a pool of liquor for better impregnation Rotary drum filter with circulation pump system with level
management automation for caustic level
Indirect heating for caustic outside the tank (optional) for hot mercerization
Complete impregnation is divided into number of section as per production requirement
Caustic spray pipes between two rubber rollers High efficiency squeezer at outlet Very low contact free fabric flow which provides very low
width shrinkage
Housing segments consists of stainless steel material All bottom rolls are fixed steel construction & rotates on
flange type sealed bearings Two adjacent bottom rollers support a rubber covered roller to
avoid contact free fabric flow till maximum caustic is removed from fabric
Counter flow washing with rotary drum filter, circulation pump system for better recovery of caustic
Indirect heating for caustic outside the tank (optional) for hot mercerization
Washed water spray pipes between two rubber rolls High efficiency squeezer at the outlet
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The lye recuperator consists of a stainless steel chamber sub divided into compartments as per process requirement
All top & bottom guiding rollers in high quality execution with a high concentricity
Perforated steam pipes are provided which allow steam to be blown into the space between the cloth passage and thereby providing a sufficient removal of caustic with steam inlet control valve
An arrangement is provided for feeding fresh water wherever necessary
Large size doors are provided on each side Possibilities of usage of washed water from
subsequent washers
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Flex-nip for add-on of caustic. Intensive tentering of fabric Diffusion compartment for swelling of cotton
fabric with grooved stainless steel rollers. Length / width stretching zone for stretching
fabric length and width wise. Counter current washing and pH control Specially designed recuperator
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Mercersing is a very important preparatory process for cotton fabric.
Process involves the treatment of cotton fabrics with caustic soda having a concentration of 215-255gm/kg under maximum tension.
It is done at room temperature and the reaction time is between 40 to 60 secs.
The process results in swelling of cotton fibres which is mercerizing.
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The objective is to achieve a high degree of mercerising thereby improving
1] Lustre 2] Tensile strength 3] Dye update 4] Dimension stability of cotton fabric.
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Low shrinkage High lustre Low residual caustic retention Less requirement of washing High recovery of caustic
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Types
Impregnation cloth contents metres
Stabilization cloth
contents metres
Recupator cloth
contents metres
Production m/hrs 50
seconds of impregnatio
n
4 x 3 x 4 9.5 7.7 8.5 685
6 x 4 x 6 14.3 10.0 12.5 1030
8 x 5 x 7 19.0 12.3 15.0 1370
10 x 7 x 8 23.7 17.0 21.0 1700
14 x 10 x 2 x 6
33.2 24.0 25.0 2390
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Add-on of caustic even on wet fabric Accelerated diffusion due to higher concentration
gradient Dimensionally stable fabric Reduction of caustic volume Savings of drying process for feed fabric Less residual shrinkage Large savings in terms of chemicals, energy,
water and time Less polluting and more eco-friendly
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THANK
YOU
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