REACTIVE DYESTUFF
General Information
Reactive dyes are characterized especially by a wide range of shades, brilliancy, excellent wet fastness, simple application methods and minimized consumption of energy required for dyeing. They are suitable for various application methods for dyeing & printing. They are applicable on all tapes of natural as well as regenerated cellulosic materials either alone or in blend with other fibers like wool, polyester, polyamide etc. The fixation of these dyes to cellulose is achieved by chemically reacting the dye with cellulose in presence of alkali.
| PRODUCT PLACEMENT CHART | ||||||
|---|---|---|---|---|---|---|
| Product Range (Click on category to view complete product range) | Placement | Warm Exhaust | Hot Exhaust | Cold Pad Batch | Pad-dry Chemical- Pad-Steam | Printing |
| ASSOFIX VS | Commodity Multi-use | S | - | S | S | S |
| ASSOFIX ME | Economical Warm Dyg. | S | - | S | - | - |
| ASSOFIX RGB/ULTRA RGB | High performance medium deep shade/ High performance deep shade | S | - | S | S | - |
| ASSOFIX RR | Pale shades Difficult shades | S | - | S | S | - |
| ASSOFIX S | Very deep shades | S | - | S | S | - |
| ASSOFIX HE/HEXL | Economical High Tempdyg/ Difficult substrates dyg. | - | S | - | - | - |
| ASSOFIX P | High performance Printing | - | - | - | - | S |
| ASSOFIX Black | - | - | - | - | - | - |
| ASSOFIX Turquoise | - | - | - | - | - | - |
Factors affecting reproducibility during exhaust dyeing.
Apart from right selection of dyestuff, the parameters which influence the reproducibility are
• Water Quality
• Liquor ratio
• Dyeing temperature
• Amount and addition of salt
• Amount and addition of alkali
• Fixation time & temperature etc.
Factors affecting levelling properties during exhaust dyeing.
Apart rom right selection of dyestuff, the parameters which influence the levelling are
• Rate of primary exhaustion
• Rate of Secondary exhaustion
• Kind of materials to be dyed
• Kind of dyeing machines used
• Aggregation during exhaust dyeing etc.
Right First Time Dyeing.
The road to “Right First Time“ Dyeing depends upon
• Excellent Pretreatment of substrate.
• Right choice of dyeing machine
• Correct selection of dyes & Chemicals
• Correct selection of dyeing method
• Strict process control parameters.
• Effective factory management.
The above Assofix dyes are applicable on all types of cellulosic materials by wide range of dyeing and printing methods using variety of equipments / machinaries.
