Since the beginning of this year, the performance of the domestic textile machinery industry has improved significantly. The main business income and total profit have shown double-digit growth, and the import and export of textile machinery products have achieved growth. According to the statistics of China Textile Machinery Association, from January to August this year, the main business income of the textile machinery industry reached 83.521 billion yuan, an increase of 12.46%; the total import of textile machinery reached 2.252 billion US dollars, an increase of 32.61%, and the total export volume reached 2.17 billion. The US dollar grew by 6.48% year-on-year. From January to August, the import of finishing machinery after printing and dyeing was 307 million US dollars, up 33.81% year-on-year; the export of finishing machinery after printing and dyeing was 404 million US dollars, up 6.00% year-on-year.
In recent years, the automation level, energy saving and emission reduction effects and manufacturing quality of domestic printing and dyeing equipment have steadily improved. Many new types of CNC printing and dyeing equipment have reached the international advanced level, and the market share has reached more than 85%. Among them, the on-line detection and control technology of printing and dyeing equipment process technology has made great progress, the on-line detection and automatic distribution system of concentrated alkali and hydrogen peroxide concentration, the combined machine tension synchronization control system, the on-line monitoring system of shaping machine production are continuously applied; The woven Fabric pretreatment equipment and the continuous dyeing production line are equipped with an online monitoring system and waste water and waste heat recovery equipment. The heat preservation effect of steaming, washing, drying and other equipment is obviously improved, and the energy saving and emission reduction effect is good; the high quality and high efficiency knitted fabrics are continuous. The bleaching and washing equipment has been manufactured by many companies to replace the traditional, intermittent knitwear bleaching and washing process equipment, and the water saving effect is remarkable; the printing and dyeing equipment is more and more beautiful in appearance, the industrial design concept is integrated into product development; the intermittent dyeing The ratio of machine to bath reached a lower level, the ratio of airflow to bath reached 1:3, and the overflow machine reached 1:4. The development of vapor-liquid combined nozzle technology and single-tube air supply technology reduced the electromechanical consumption of airflow; steam and other cleaning Energy has become the main heat source for many shaping machines in the printing and dyeing gathering area, and the exhaust gas is purified; It is equipped with temperature and humidity monitoring instruments to optimize the shaping process, reduce energy consumption and reduce exhaust emissions; digital inkjet printing machine printing speed is greatly improved, printing speed is generally more than 150 square meters / hour, and some enterprise products even More than 1000 square meters per hour; digital inkjet printing machine combined with cutting-edge technologies such as big data, cloud computing, Internet +, etc., to connect garment design, production and fabric production, changing the lengthy process of traditional garment production and realizing clothing Personalized.
For example, Shandong Kang Pinna Group Co., Ltd. and the Institute of Mechanical Science and Technology jointly developed a complete set of digital automatic dyeing technology and equipment for package yarns. The package yarns are loaded and unloaded by automatic robots, and the package yarns are automatically transported, and the dyeing materials are automatically compounded. Chemical and feed, dyeing, dewatering, drying and transportation are completely monitored by the central control system. The project won the first prize of the 2014 National Science and Technology Progress Award.
Despite the significant improvement in the level of domestic printing and dyeing equipment, the industry still faces four difficulties. First, due to the constraints of process, additives, dyes, etc., domestic high-efficiency, short-process printing and dyeing equipment is developing slowly and the process route is long. Second, the innovation and R&D investment in the printing and dyeing machinery industry is generally low, and universities and research institutes are printing and dyeing. There are few researches on mechanical basic theory, especially the research and development projects of cross-domain technology. Third, the development of printing and dyeing machinery products has certain blindness. The production capacity of low-end and medium-end products is increasing, the technical content is not high, and the homogenization of special basic parts products. The situation is more serious. Fourth, the printing stability and durability of some printing and dyeing machinery products are not high, and the success rate is low at one time, resulting in waste of energy and increasing environmental pollution.
Therefore, in order to standardize the industry order and realize the re-upgrading of the domestic printing and dyeing equipment industry, environmental protection, energy conservation, digital monitoring and intelligentization should become the top priority of the development of printing and dyeing machinery.
Specifically, the development trend of printing and dyeing machinery technology and products is reflected in the following aspects: in the development of continuous printing and dyeing machinery process configuration, the development of short process equipment and technology development (such as wet short steaming equipment); The mercerizing machine and the continuous padding equipment are equipped with numerical control devices to precisely control the fabric tension and accurately monitor the water and electricity consumption. Install spray, oscillating, ultrasonic and other components for the washing unit to improve the washing efficiency; improve the steamer sealing and strengthen the insulation. In order to reduce heat loss; pay more attention to the quality of rolling rubber, reduce the rolling rate (Boluwei microporous roll); improve the efficiency of hot air drying machine, reduce energy consumption; with the tension can be precisely controlled and knitted fabric curling If the problem is solved, the continuous bleaching and washing equipment of the knitted fabric will replace some of the batch equipment; the research on the continuous processing technology of the chemical fiber filament fabric is underway, and the continuous equipment may replace some intermittent equipment for the large chemical fiber fabric. Mass production; rotary screen and flat screen printing machine will still be the mainstream printing equipment, and will realize full digital operation in the future. The case is monitored in real time to ensure stable flower accuracy; the tenter setting machine is equipped with a digital energy consumption monitoring system to reduce heat loss in terms of exhaust emissions; wet processing equipment will be generally equipped with wastewater filtration and reuse, waste heat recovery device, and the shaping machine is equipped with exhaust gas. Waste heat recovery and purification treatment equipment, to maximize the use of waste heat, reduce production energy consumption; intermittent printing and dyeing equipment will continue to develop low bath ratio technology, study the low water consumption technology of dyeing process after washing; promote the automatic distribution technology of dyes and additives Products that reduce chemical pollution.
It is worth mentioning that the digital inkjet printing machine is a hot spot in the development of the textile machinery industry. As more and more personalized textiles enter people's lives, the output of digital printing cloth increases year by year, and the output of digital inkjet printing machines Will grow faster; digital printing + round (flat) network joint opportunity to gradually enter the market.
In addition, the range of stentering machines extends from traditional woven fabrics to various types of fabrics such as knitted fabrics and nonwoven fabrics. In recent years, the market demand is large, and it is expected to remain at 1,200 units/year or even higher in the next three years. Production.
In general, the improvement of manufacturing quality, process adaptability and success rate has always been the development goal of printing and dyeing machinery. Green environmental protection is the main line of development of printing and dyeing machinery. The application of numerical control and intelligent technology will effectively enhance the ability of traditional machinery, and even completely change the operation and operation mode. The advancement of dyeing materials and printing and dyeing process will determine the future of printing and dyeing process, and may suddenly change the development of printing and dyeing machinery. direction.
Editor in charge: Xu Yuehua
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