The trend of printing and dyeing machinery and automation at home and abroad

In the past two years, the new dyeing and finishing technologies, new technologies, and new equipment at home and abroad have continuously emerged, showing the momentum of the vigorous development of the global printing and dyeing machinery industry. Energy conservation, environmental protection, and high efficiency are the directions for the sustainable development of the dyeing and finishing industry in the 21st century. New technologies such as short flow and automation technology, unprinted plate printing, low-temperature plasma processing, and waterless processing technology are the development trends of future dyeing and finishing machinery. Since CITME'2002, China's textile industry has achieved greater development, the speed of industrial upgrading has been greatly accelerated, and the purchase of textile machinery equipment has also rapidly increased. In 2002, imported printing and dyeing and finishing machinery accounted for 618 million U.S. dollars, accounting for 19.4 percent of the total amount of imported equipment, ranking second; in 2003, China imported 978 million U.S. dollars for printing, dyeing, and finishing machinery, accounting for 21.10% of the total amount of imported equipment. the first.

The current general trend of dyeing and finishing equipment technology development is: to environmental protection, energy saving, time-saving and efficient, short process development, attention to waterless processing technology, no plate printing technology, low temperature plasma processing and other new technologies; another important trend Is the extensive use of automation technology, transmission system uses AC variable frequency multi-unit synchronous speed control system; in the control system, extensive use of programmable controller (PLC) or industrial computer control (IPC), the universal application of parameter monitoring, to improve the dyeing and finishing The degree of automation of the equipment has greatly improved the process stability and reproducibility.

With the development of the dyeing and finishing industry, modern information control technologies based on electronic computers have penetrated into various fields of dyeing and finishing machinery. Dyeing and finishing equipment, electromechanical instrument integration, automation, man-machine dialogue, process setting, automatic detection and control, remote diagnosis and other means are widely used. In the field of eco-dyeing and environmental protection technology, the international textile industry has developed rapidly. Domestic and foreign manufacturers are paying more attention to environmental protection and energy conservation. Dyeing equipment focuses on the efficiency of the equipment in the design program, which is conducive to ecological and environmental protection, and strives to optimize the dyeing process and reduce chemical agents. And energy consumption to achieve high-efficiency, high-speed, and short-flow processes.

Dyeing and finishing production shows a trend of short flow and high efficiency. The short-flow, high-efficiency process equipment that is compatible with it mainly includes pre-treatment before cold-rolling, wet and short-steam pretreatment, mercerizing, cold-rolling, and heap-dyeing, and wet Short steam dyeing, roll-rolling dyeing, and high liquid feeding devices.

The trend of individualized, comfortable, functional and fashionable textiles has promoted the development of dyeing and finishing equipment to adapt to the trend of small batches, multiple varieties, and multiple uses of one machine.

The current trend of dyeing and finishing in the world is to develop new technologies and new equipment based on ecological concepts, and to develop R&D in combination with processes, dyes, auxiliaries and other channels. Such as the use of water-free processing technology, no plate printing technology, low-temperature plasma processing technology, nano-technology, biological enzyme technology, etc., making the printing and dyeing finishing process flow shorter, higher production efficiency, product performance is better. The new technology and new equipment mainly have the following aspects:

Knitwear continuously processes new processes.

Continuous continuous dyeing and finishing of knitted fabrics not only improves the quality, has little damage to the fabric, but also has good flexibility and reproducibility, and can reduce the production cost of the mercerizing machine by about 10% to 15%. Nominal width of 3200 mm, 3400 mm, suitable for woven fabric processing, wide-width cloth straight-roller mercerizing machine. A five- or two-roll thread micro-stitching device has been added between the soaking alkali area and the mercerizing stable area of ​​the straight roll, which can effectively prevent the weft shrinkage caused by fabric impregnation with concentrated alkali. Digital inkjet printing. The digital jet printing with the printing technology revolution has reached a print speed of (360dpi) 25m2/h.