Wet rubbing fastness improving agent HT-808
Brief information
-- Original wet rubbing fastness improving agent is poor deep dyeing for direct, reactive，indigo blue and sulfur dyestuffs ，especially for dark black, bright red and turquoise blue whose wet rubbing fastness is below Grade 1, while fabric wet rubbing fastness exported to Europe and US must be above Grade 3. Therefore, our company specially developed environment-friendly wet rubbing fastness improving agent 808.
Main composition
-- Special water-based polyurethane.
General properties
-- Appearance: light yellow to yellow liquid
-- Ionicity: weakly cationic
-- pH: 4.0 ± 1
-- Solubility: easily soluble in normal water in any proportion at room temperature
Properties and fields of application
--Free of formaldehyde and APEO that belongs to environmental products and complies with EU requirements.
-- Excellent wet rubbing fastness improving performance that can meet above Grade 3 by improving 1- 2 grades for cellulose fibres with reactive dyestuffs.
-- Easy operation for using by direct dilution and make sure that the temperature of working liquid above 38 degree centigrade.
-- Does not destroy fabric fastness, neither shades nor hand feels.
-- No influence on light fastness and resistant to washing.
Application
-- Dipping (Denim washing only)
HT-808: 4-8% (O.W.F)
Bath ratio: 1: 10 – 20
Dyed fabrics (pH ≦ 7) → Dip at 40℃ × 20 – 30 min → Dry at 100 – 120℃→ Cure at 150 – 160℃ × 90 sec
-- Padding:
HT-808: 10 – 40 g/L
Dyed fabrics (pH <= 7) → Twice dip & pad at 40℃ with water retention 70 – 80% → Dry at 100 – 120℃
-- Prepared solution should be used immediately while it appears translucent emulsion at approx.40℃.
-- Specific process should be adjusted by testing.
Packing and storage
-- Packing: 125 kg/polyethylene drum
-- Storage: Keep it cool and dry, 6 months in sealed container at room temperature.
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