Benefits
- High dyeing efficiency – the nitrogen technology increases the pick-up in the dye vat by three times. This drastically reduces the length and the number of vats required.
- Reduction in chemical and yarn waste – more than 60% saving in the consumption of hydrosulphite and caustic soda. A reduction of yarn waste because of the low number of dyeing vats.
- Water saving – less water (about 50%) is needed in the final washing due to the improved dye fixation.
Technical Details
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Working width
1,800 mm -
No. of beams
8 to 20 -
Mechanical speed
up to 50 m/min -
Oxidation
40 to 45 -
Dye vat volume
2,000 l -
Nitrogen reactor volume
13 m³
Reactor (18 m)
- Variable speed recirculation system to maintain perfect homogenization and inerting of the chamber to prevent any oxidation in the processing.
- Oxygen percentage always below 0.5%.
- Nitrogen consumption is minimized at 3 m3/hour for each reactor.
- Drip prevention and condensate collection system to avoid water drops from falling on the yarn sheet.
- Heated rollers to manage and regulate the penetration of the dyestuff.
- Fully accessibility and vision on the process.
Dyeing vat (6.4 m)
- Integrated roller lifting device, easier yarn repairing, better cleaning and maintenance, less time preparation.
- Bath circulation by cross flow system for uniform dyeing result.
- Variable dwelling length (from 6.4 to 1.7 m).
- The dyeing vat is separated from the reactor to reduce the humidity in the chamber.
Anwendungen
Nitrogen Technology - How it works
- The problem with the conventional method is timing. The time between dipping and skying is too short for diffusion and fixation of dyestuff to take place.
- This phase is basically absent in the traditional method.
- With the nitrogen technology the oxidation is temporarily prevented. In the NOX chamber the dyestuff has enough time to diffuse and fixate on the yarn.
- This way the BLUEDYE can pick up 3 times more dye with even higher indigo concentration.
Expert Training at our Academy
The knowledge about the right dipping, squeezing, diffusion in nitrogen and oxidation is a key factor for your success in the market. Our denim academy enables you to send your staff for hands on training on the machine and focused education for a very deep understanding of the new technology. All free of charge. Only with the right knowledge and a deep understanding of the sustainable denim technology will you be able to outperform your competitors. We strongly believe that sustainable denim is the future way to produce denim. At our Denim Academy you can learn how to use this technology to your advantage.
