Daffodil International University
Faculty of Engineering => Textile Wet Processing => Textile Engineering => Textile Dyeing => Topic started by: nawshin farzana on November 15, 2018, 04:02:41 PM
-
Air Instead Of Water
Airflow was the key element of the technology, as air is an ideal transport medium. The replacement of dye liquor with air as a method of transporting piece goods in jet-dyeing machines was a big step toward reducing water and chemicals consumption. Compared to the jet system in which the nozzles are filled with liquor, nozzle pressure is negligible, thus offering optimum protection
of sensitive textile surfaces. At the same time, the use of the mass flow principle provides a major improvement in fabric hank laying, thus preventing creasing.
The moisture-saturated airflow ensures the uniform distribution of temperature on the fabric and in the machine, constituting a prerequisite for even and reproducible dyeing. Moreover, the low level of liquor in the dyeing boiler means the fabric is lighter than in conventional machinery and can therefore be accelerated quickly to high speeds. Thus, the risk of draft or strain is minimal,
which is particularly advantageous with regard to the finishing of items containing elastane fibers.
The Airflow technology represents the combined result of the entire range of possibilities
provided by the technology. Through the interplay of all technical possibilities and functions,
economic and ecological advantages over the traditional dyeing technology are achieved. The main
advantages are as follows:
-unlimited flexibility with regard to all fiber – except pure wool – and fabric weight classes
between 30 and 800 grams per square meter, as well as all standard market dyestuffs;
-the lowest liquor ratio on the market: approximately 1:2 for man-made fibers and 1:3 to 1:4 for
natural fibers, depending on the article and structure;
-energy savings of up to 40 percent, thanks to a frequency converter, and the use of air as a
transport medium, while all other systems need water;
-a reduction in the overall process time of approximately 25 percent; and
-lowest water/wastewater levels.
source: internet
-
thanks for sahring
-
thanks for sharing
-
thanks for sharing
-
very informative
-
Informative one. Thanks for sharing :)