The hottest itmaasiacitme2008 dyeing and finishing

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ITMA asia+citme 2008 printing, dyeing and finishing technology highlights energy conservation and efficiency

in China International Textile Machinery Exhibition and ITMA Asia Exhibition (ITMA asia+citme 2008), domestic and foreign exhibitors have shown new energy-saving, efficient and environmental friendly equipment, which will provide strong support for China's printing, dyeing, finishing industry and product upgrading

energy saving, water saving and environmental protection

in the dyeing and finishing process, the use of energy is directly proportional to the consumption of water resources. If the consumption of water is reduced, the energy consumption can also be reduced at the same time

new concept process technology

the Italian Arioli plasma pretreatment equipment with a new concept of pretreatment is still in the development stage. The existing equipment is used for dyeing pretreatment of nonwovens and knitted fabrics of various chemical and natural fibers. Plasma treatment can improve the adsorption and wettability of the fabric to dyes and increase the adhesion to some finishing agents

Benninger of Switzerland introduced a new concept of resource management for the recycling and reuse of water and some chemicals in the dyeing and finishing process, that is, the above is the relevant introduction of the functional characteristics of the hydraulic universal experimental machine for casting aluminum alloy. Using ultrafiltration method, pollutants are separated from water, so that water can be recycled and reused, realizing zero discharge of pollutants, and recovering useful chemicals from wastewater

BASF (Germany) showed a new formaldehyde free printing and dyeing process, a biodegradable toner additive for acid reduction cleaning, and a rapid coloring and finishing process with the concept of climate protection

thermal energy recovery technology equipment

baelz laudagas heat recovery system, which is suitable for the integrated automatic cleaning system of the stenting and sizing machine, was exhibited in baelz, Germany. It is said that it can save energy by 20%, reduce exhaust gas emissions by 30%, and use steam and hot water to carry out automatic comprehensive cleaning of the equipment for 4 minutes every 8 hours

monforts Fong's stenting and setting machine has a built-in exhaust gas heat recovery (h/r) device. After the exhaust gas passes through the heat exchanger, the impurities are cooled and no longer discharged outward; Fresh air is heated and sent into the box; The heat recovery device is integrated with the oven, which does not occupy the ground position; Generally, the heat energy consumption can be reduced by more than 18%

the waste heat recovery system developed by the Hongchi factory in Hisaka, Japan, enables the waste liquid of the dyeing machine to flow through the heat exchanger before being discharged, and then the heat energy recovered by the exchange is used to heat the water required for dyeing, so as to reduce the heat consumption

Zhangjiagang Jianye sewage heat energy recovery system can reuse the sewage heat energy generated by desizing, scouring, bleaching, mercerizing and various washing machines. It can also reuse some sewage in the pulse light market after treatment, and the heat energy recovery can reach 90%

nisaka waste heat recovery system

dyeing technology takes reducing bath ratio and energy saving as the application trend

the dyeing gas high-efficiency anti migration pre dryer launched by Changzhou Dite energy technology adopts the American original metal matrix infrared high-strength radiator, applies advanced gas system control technology, and is manufactured in combination with the current situation of China's printing and dyeing industry. Compared with electric heating, it saves about 70% of the cost per month, The payback period of investment is about 5 months

shortening dyeing time and reducing bath ratio can improve dyeing efficiency and reduce water and heat consumption. The air synergy jet dyeing machine exhibited by then, a subsidiary of Lixin, has a synthetic fiber dyeing bath ratio of 1:2, which is the lowest bath ratio dyeing machine at present. It is reported that the dyeing machine provides a wide range of flexibility for the processing of knitted and woven products of all kinds of fibers (except pure wool). This one-step rapid dyeing process has been developed into a mature automatic sequence production line, which greatly shortens the dyeing process

dyetec dt500 high temperature air flow dyeing machine and dtl500 atmospheric pressure "This is a non isothermal process. The liquid ratio of the flow dyeing machine is between 1:2 and 1:3.5. Its high-efficiency heat exchanger accelerates the heating speed, the new nozzle structure avoids fabric wrinkles, and the advanced dosing system shortens the processing time and makes the dyeing more uniform.

Chinese enterprises have also made great progress in the research and development of high-efficiency and low bath ratio in recent years. The bath ratio of Jiangyin Jintian normal temperature air flow dyeing machine is less than 1:4; Shuangxi environmental protection air flow The bath ratio of dyeing machine is 1:3.7, the final bath ratio of chemical fiber fabric is 1:1.75, and that of cotton knitted fabric is 1:3.75; The bath ratio of Wuxi Xinda high temperature air atomization dyeing machine is 1:3~4; Shaoyang spinning machine m7202 high temperature and high pressure air flow dyeing machine has a bath ratio of 1:3 for polyester and 1:4 for pure cotton

the process opposite to the idea of high temperature, high pressure and low bath ratio dyeing is cold pad batch, which can also save energy and reduce consumption. At present, it is only used for reactive dye dyeing

Jiangsu Hongqi cold pile dyeing machine adopts low liquid level control, dye liquor refrigeration to delay the hydrolysis of reactive dyes, the fabric is cooled before entering the dyeing tank, and uniform rolling is used to ensure dyeing uniformity

Shanghai Pacific printing and dyeing LSR cold dyeing machine is equipped with a spreading and centering device, which creates conditions for edge alignment and central winding; Uniform rolling ensures uniform color; The tension control device and the expanding cloth guide device ensure that the fabric is rolled flat and low tension

continuous innovation of general-purpose equipment

for general-purpose printing, dyeing and finishing equipment, many companies have made many innovations around energy saving, consumption reduction, high-efficiency and high-quality processing

Hangzhou Honghua Vega jet printing machine can be called a green printing and dyeing machine that combines it technology with textile printing and dyeing technology. The production speed of the on-site exhibition equipment is 140 square meters per hour, and the production process does not require plate making, making, and mixing. There is no waste dye paste, and the noise is low; It only takes 2 hours from order receiving to production; High printing accuracy, realistic pattern and good reproducibility. At present, acid, reactive and disperse dyes and coatings can be used

REGGIANI dream textile digital printing machine is suitable for a wide range of processing methods, with a precision of 600dpi and a speed of 230m2/h, especially for the market needs of medium-sized, low printing cost and rapid production

German osteff-s (better than excellent steel Enge) exhibited a singeing machine integrating dust-free technology, selvage wetting technology, airbag technology, hairiness testing and control technology, raising singeing technology to a new level. The hairiness test system can automatically detect the height of residual fuzz after singeing, and automatically adjust the process parameters such as flame intensity or vehicle speed, so as to control the singeing quality

Zhangjiagang Jianye new energy-saving reduction steamer adopts steam sealing, and the cloth enters the steamer when the liquid carrying rate reaches 70%. Compared with liquid sealing, steam is saved by about 50%, and the concentration of pollutants is reduced

Weko spray tray uniform coating system is widely used in soft, waterproof, antistatic and other special finishing in the production of textiles, non-woven fabrics, papermaking, film (film). The system adopts computer full-automatic control operation, and sets the liquid feeding amount according to the finishing needs. It has the characteristics of uniform liquid feeding, good reproducibility, automatic cleaning, saving finishing agent, reducing environmental pollution and so on

the author is a senior engineer of Hubei Textile Engineering Society

Yang Chaoyu is senior engineer of Hu Bei Textile Engineering Society. (end)

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