Esto-PVP is a concentrated product to avoid cross-staining of dyes in washing-off of dyed and printed substrates. Esto-PVP can be used in batch as well as in continous operation. During washing-off, Esto-PVP forms weak complex with anionic dyes which is kept in dispersion throughout washing process and prevents re-deposition thereby cross-staining is avoided. Due to its good rinseability, Esto-PVP is easily washed-off and does not interfere in subsequent dyefixing or softening. Esto-PVP can be used against conventional washing off agents. It is also recommended for stripping of vat and sulphur dyes.
Key Features
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Benefits
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Concentrated powder product
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Reduced freight cost
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Good dispersing action
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Prevents re-deposition and cross staining during washing process |
Verstile application
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Used as washing off agents for Reactive dyed/printed substrates. |
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Used as a levelling agent for vat dyes. |
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Used as a stripping agent for Reactive dyes at higher dosage. |
Physical appearance
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White to yellowish powder
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Ionic nature | Nonionic
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pH of 1% solution
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5 +/-1
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Miscibility | Miscible with water
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Compatibility
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Compatible with cationic, anionic and nonionic products
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Stability
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Stable to dilute acids and dilute alkalies
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1. Washing-off of dyeings by batch operation :
2. Washing-off of dyeings and prints on continous range :
3. Preventing re-deposition in stripping of vat, sulphur and reactive dyes :
Treat at 70-80 deg.C for 45-60 mins. Wash and neutralise before overdyeing.
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