How do digital printing machines reduce water pollution?

1. Simplify the production process: Digital printing technology eliminates the steaming, washing, desizing and other processes in traditional printing, thereby reducing water consumption and sewage discharge.
2. On-demand printing: Digital printing machines are controlled by computers to achieve on-demand printing, and the dye usage is only 40% of traditional printing, of which only 5% of the dye is washed away by water, while 70% of the dye in traditional printing will be washed away by water, greatly reducing the generation of wastewater.
3. Water-saving devices: Some digital printing machines are equipped with water-saving devices, such as a water-saving moisturizing device, which moisturizes the printing head through a sprayer, avoids the long-term operation of the sprayer and reduces the scope of increasing air humidity, effectively reducing water consumption.
4. Recycling technology: Promote condensed water, cooling and reclaimed water reuse technology, improve water reuse rate, and reduce wastewater discharge.
5. Waterless printing solutions: Such as Nirvana Belt technology, which completely avoids the need for pretreatment and post-printing processes required for traditional textile applications, thereby completely avoiding the large amount of chemical use and water consumption in these processes.
6. Environmentally friendly dyes and auxiliaries: Use high-performance, high-dyeing rate dyes, nano-coatings and other environmentally friendly dyes, as well as environmentally friendly auxiliaries, to reduce or avoid the generation of pollutants from the source.
7. Low-water printing and dyeing technology and equipment: Use low-water printing and dyeing technology and equipment such as efficient short-process descaling and bleaching of cotton woven fabrics, continuous flat-width pretreatment of chemical fiber woven fabrics, and continuous pretreatment of knitted fabrics to reduce water consumption and wastewater discharge.
8. Technology or process to reduce the use of chemicals: Use technology or process to reduce the use of chemicals such as bio-enzyme pretreatment, cold pad-batch pretreatment, and cold pad-batch dyeing to reduce the generation and discharge of water pollutants.