Energy-saving printing and dyeing technology is the future development trend
This year’s ITMA held in Munich is the largest ever. Compared with previous exhibitions, it focuses more on attracting international professional audiences to pay attention to the theme of energy efficiency and resource conservation. In view of rapidly increasing energy and raw material prices, the textile industry is currently closely looking for ways to optimize energy management. Many exhibitors from the textile industry chain are following this trend, offering new energy-saving machines and processes.
In the textile production chain from fiber production to garment production, the energy cost of textile finishing accounts for about half of the overall energy cost, with fiber production and spinning each accounting for 15%, and textile accounting for 20%. Between 1988 and 2006, the German textile industry’s energy costs doubled as a proportion of turnover, growing from 5% to more than 10% currently. Similar growth is noteworthy in a number of other textile-producing countries in the Far and Middle East, East Asia and Latin America.
This significant growth requires the textile machinery manufacturing industry to develop products for customers that can more efficiently utilize electricity, gas, water, steam and compressed air. For example, air-end spinning mills can save 16% more electricity by using advanced production processes. In textile finishing, wastewater heat exchangers, automatic control technology and power technology can also achieve significant energy savings through process optimization. For example, stretchers are the largest energy-consuming components in textile finishing, but through optimization of waste gas and residual moisture regulation, temperature-appropriate processes and heat recovery, the drying and color-fixing processes will be more energy-saving.
Future printing and dyeing factories must significantly reduce water consumption, minimize energy consumption and process time, and reduce environmental pollution (for example, by reducing the amount of halogen used and using biodegradable products). This can be achieved by maximizing the production of “right first time” products in dyeing and dyeing plants, which means achieving perfect results in the first dyeing process. Energy-saving processes such as plasma processing, hot-melt coating, and inkjet printing are also sparking growing interest in the textile industry.
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