72163022 Kuster Calico Mercerization

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Mercerising Range

Transcript of 72163022 Kuster Calico Mercerization

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Mercerising Range

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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

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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

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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

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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

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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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