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In order to impart luster, increased strength and improved dye uptake on cotton fabric or yarn, they are mercerised before or after bleaching using 24% (56°Tw) aq. caustic soda solution. Due to high surface tension of the caustic solution used in mercerisation, use of wetting agent for instantaneous wetting of yarn / fabric becomes necessary. |
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POLYCOL - EHS facilitates wetting of and penetration in the fibre by caustic soda solution efficiently resulting in uniform mercerisation. |
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GENERAL CHARACTERISTICS |
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| APPEARANCE |
:- Pale to yellow, clear liquid. |
| SOLUBILITY |
:- Miscible with water and 24 % caustic soda solution. |
| pH (2% aq. Solution) |
:- 7-9 |
| IONIC NATURE |
:- Anionic |
| FOAM FORMATION |
:- Collapse immediately. |
| STABILITY |
:- Stable to hard water and highly concentrated alkali. |
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SALIENT FEATURES |
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| 1) |
Provides excellent wetting & penetrating action in ( 25-30o Baume / 48-52o Twaddle ) caustic solutions. |
| 2) |
Being noncresylic, it is free from handling hazards. |
| 3) |
Gives low foaming in caustic soda liquors. |
| 4) |
Provides high degree of mercerisation of gray yarns and fabrics to ensure improvement in dyeing properties |
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APPLICATION |
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POLYCOL - EHS is recommended to be used, in the liquor of 22.4% Caustic Soda solution @ 2 ml/l. |
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On cotton knit & hosiery : POLYCOL – EHS is added to caustic lye of required strength @ 2 - 4 gpl. and then sprayed on the fabric as it is drawn over circular expanders under controlled tension followed by washing out the residual caustic before further processing. |
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On 100% cotton / cellulose based woven fabrics : Caustic lye of desired strength containing 2 – 5 gpl. of POLYCOL – EHS is used for impregnation of gray fabric at desired temp. i.e. ( 20o – 40oC ) Excess liquor is squeezed out by a mangle & fabric is passed through series of washing tanks and then it is piled wet overnight and then scoured & bleached. |
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PACKING 50 kg. net HDPE Containers |
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