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Pre Drying Far Infrared Heating Can Improve Many Quality Problems Of Spunlaced Products.

2014/6/26 7:37:00 17

Pre Drying Far Infrared Heating Spunlaced Products Quality Problems

although there are hundreds of Spunlace production lines in China, most of them are sizing dyeing, drum drying or rotary screen dyeing. Generally speaking, the equipment configuration fails to take into consideration the uniformity requirements of dyeing, printing and finishing. It does not achieve good quality requirements for the most demanding varieties of dyed printing products. Many defects such as positive and negative chromatic aberration, left mid right color difference, front and rear chromatic aberration, false color and unreal color can not be fundamentally improved. Especially the adhesive surface area mark and crust phenomenon are more worrying, and are often subject to complaints by guests. 
 on the other hand, due to the higher liquid ratio of sizing, dyeing and finishing, the drying capacity of the rear way is greater. Especially the thick and heavy sizing dyeing and finishing varieties often encounter many quality problems, such as poor reproducibility of the process, dry bathing of dozens of meters at the beginning of the machine, color difference of flowers, and strong decline of the products. The most effective and advanced way to improve these problems is to add pre baked far-infrared heating. 
 pre drying uses < a href= "//www.sjfzxm.com/news/index_c.asp" _xhe_href= "//www.sjfzxm.com/news/index_c.asp" > far infrared ray < /a > heating. Most of the wavelengths of absorbing infrared rays are in the far infrared region. Water molecules have strong absorption peaks in the far infrared region, which can absorb strong far-infrared rays and produce intense resonance phenomena, making them rapidly hot and dry. Far infrared rays penetrate deeper into products than near, mid infrared and visible light. It has been measured that the temperature of the cloth in the drying way is far higher than that in the drying channel, while the hot air and the drying tube are the opposite. This shows that the far-infrared heating is heated from the product and the product is dissipating to the air. Far infrared drying has the advantages of high efficiency, quick drying, energy saving, saving time, convenient use, uniform drying and small floor area. It achieves high yield, high quality, low consumption, uniform product color, and uniform and stable finishing effect. 
 because the far-infrared prebaked area is small and the design of different width and width can be carried out, it can be added on the basis of not affecting the original equipment layout without affecting the normal operation of the production line. Because its < a href= "//www.sjfzxm.com/news/index_c.asp" _xhe_href= "//www.sjfzxm.com/news/index_c.asp" > heating efficiency is less than /a > high, the preheating time is short, not only greatly improves the printing and dyeing quality of the printing and dyeing products, but also eliminates the defective products due to the initial start-up or failure shutdown. At the same time, the production of non printing and dyeing products, such as wood and PU base cloth, can also be fully used, which is more energy efficient and efficient than using the hot air or roller drying of the original production line. Therefore, spunlace printing and dyeing with far-infrared pre drying will play a very significant role in improving printing and dyeing quality and saving energy and reducing consumption. 
 and now, < a href= "//www.sjfzxm.com/news/index_c.asp" _xhe_href= "//www.sjfzxm.com/news/index_c.asp" > installation /a > one such auxiliary equipment, the price is not very expensive, the whole need 100 thousand ~20 yuan can be fixed. Moreover, in terms of economic efficiency, the 0.3KG water can be removed by far-infrared pre drying, which requires 0.3kwh consumption. If the electric heating drum or hot air conduction mode is used, it needs more than 0.6kw of power consumption, and each kilogram of cloth can save more than 0.3kwh, which is lower than the cost of the heating method of the coal-fired boiler. The annual production capacity of 1200 tons production line, calculated by 1kwh0.8 yuan, can save 288 thousand yuan a year. Less than half a year's production will be able to recover the investment of far-infrared prebaked, and the economic benefit is very significant.