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Defoamer-50 is a 50% active silicone defoamer designed for all textile processing operations where foam control becomes essential. It can be used in jets, overflow dyeing machines, package dyeing machines, winches, jiggers and printing machines. Defoamer-50 is stable at high shear, wide pH range and wide temperature conditions. Defoamer-50 does not lead to any objectionable build-up on equipment’s or substrate.
Key Features & Benefits :
|
Stable to alkaline pH, high temperature |
Suitable for pretreatment & dyeing of cotton. Can be added in chemical padding to avoid foam marks in continuous dyeing with vat dyes |
| Shear stable
|
Suitable for jet, soft flow
machines and package dyeing machines |
| Spot free
|
Does not lead to silicone spots
|
General Characteristics
| Physical appearance
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Off white to milky white viscous emulsion
|
| Ionic nature | Nonionic
|
| pH of 1% solution | 7.5 +/- 1
|
| Miscibility | Dispersible in water
|
| Compatibility
|
Compatible with cationic, anionic and nonionic products
|
| Stability
|
Stable to dilute acids and dilute alkalies
|
Defoamer-50 is stable to high alkaline pH and at elevated temperature. Depending upon
the requirement 0.5-1.0 g/l Defoamer-50 can be used.
Note:
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1. Defoamer-50 is a surfactant free dispersion, stabilised with protective colloids and hence its dispersions appears non-homogeneous. However, such products should ideally not diluted to stock solutions, but diluted immediately before use.
2. For preparing stock solution small quantity of Xanthan gum (0.3-0.4% on weight of stock solution) or synthetic thickener is recommended.
3. Defoamer-50 is not advisable to use in high temperature /high pressure machines and hence cannot be used in polyester dyeing.
Storage : Store in cool, ventilated shed away from heat and direct sunlight. Storage temperature should not exceed 35 deg C. Close lids firmly to avoid contact with air and moisture.
Shelf Life : 9 months from the date of manufacturing, if stored under controlled conditions.
The above information is given in good faith and is without warranty
