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CATACLEAR-CCAT is an exclusive ‘Reduction Clearing Agent’ for washing of Disperse dyed & printed polyester materials. |
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GENERAL CHARACTERISTICS : |
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» APPEARANCE : Yellow to amber coloured transparent liquid with charac- teristic odour.
» SOLUBILITY: Dispersible in water, gives stable emulsion.
» pH(1% aq.solution): 7 – 8.5
» IONIC NATURE: Anionic. |
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SALIENT FEATURES : |
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CATACLEAR-CCAT removes aq. class of dyes in particular and other unfixed disperse colours, gums, etc. CATACLEAR-CCAT has excellent dispersing & wetting property to remove gums and unfixed disperse dyes. It has powerful complexing tendency with aq. type of dyes for their effective removal in aqueous medium. The complexing power is better in neutral to acidic ph(1g/l acetic acid) than in alkaline pH. |
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APPLICATION : |
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FOR PRINTED GOODS :
1. Washing with cold water allows swelling of gums, removal of swollen gum and excess of unfixed colour. Repeat twice or thrice this cycle till free from excess bleeding of colour.
2. Wash with Hydrose 2 to 5g/l and caustic 2g/l and 60° to 70°C for 20 to 30minutes. The amount depends on M/L ratio, coverage of prints, depth of prints (CATACLEAR-CCAT can be added to this stage eliminating stage 5)
3. Repeat the caustic hydro treatment with half the concentration.
4. Cold wash.
5. Soap at boil with 2 to 3g/l CATACLEAR-CCAT & 1g/l of acetic acid. Colour can be seen in the bath even after proper hydro caustic treatment & even after any additional oxidative treatment (if introduced).
REDUCTION CLEARING FOR DYED GOODS
CATACLEAR-CCAT can be used in washing off dyed goods after beam or jet dyeing process. After the dyeing is over, in cooling dyeing bath itself add 1gm/lit. of CATACLEAR-CCAT. The product can be added at 1300C in beam dyeing & at 1000C in jet dyeing, in acidic condition only. Allow cooling and circulation for 10 to 15 minutes or till required temperature is reached. Drain the dye bath and work as usual. The reduction clearing & cleaning of machine is also achieved simultaneously.
For dark shades drain the bath. Add oxalic acid 0.5g/l, CATACLEAR-CCAT 1gm/lit. and raise the temperature to 90 C for 10 minutes & then work as usual.
CATACLEAR-CCAT produces tint free and bright prints. |
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