• Categories:IR Applications & News
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• Time of issue:2024-03-21
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(Summary description)Infrared heating technology in textile industry

Heating and drying are essential processes in many industrial production processes and consume a lot of energy. Some people estimate that the energy consumed by heating and drying products alone accounts for 10% to 15% of the fuel consumption in industrialized countries. Therefore, high efficient infrared heating can be used for energy saving.

 



 

Infrared radiation heating technology has been used in the sizing process of weaving preparation, continuous pad dyeing in dyeing and finishing, and pre-baking and heat setting of printing.

 

Since the wavelength frequency of infrared rays is the same as or similar to the natural frequencies of organic matter, polymer materials (such as polyester, polyamide, etc.) and water, it can cause resonance phenomena in the heated materials, so the heating effect is ideal. It can be seen from the infrared absorption spectra of water layers of different thicknesses that due to the presence of liquid water, water-containing textiles will absorb all radiation waves above 1.2 μm, and strong absorption bands appear near the hydroxyl vibration wavelength of water at 2.7 μm and in the 6-11 μm band. 

 

 

It can be seen that during thermal processing such as drying and shaping of textiles, there is a strong absorption band between wavelengths 2.7~11um. Only the best matching of different optimal absorption wavelengths and infrared radiation wavelengths can achieve the highest radiation, optimal absorption, and maximum energy conversion, and form a uniform temperature field and uniform radiation field to achieve optimal drying and heat setting.

 

 

The main advantages of textiles infrared heating

 

a) Sizing yarn drying mainly includes drying cylinder drying room (conduction heating), hot air drying room (convection heating) and infrared drying room (radiation heating). Among them, in the drying cylinder type, since the yarn is in direct contact with the surface of the drying cylinder in a wet state, the cross section of the yarn is easy to be flat, and the yarn pieces are easy to adhere to the surface of the drying cylinder and cause adjacent yarns to stick to each other, so there is more hairiness. . Hot air drying has low efficiency and high steam consumption. However, high efficient infrared drying can overcome the shortcomings of the above two drying methods at the same time, and the temperature is easy to control.

 

b) The biggest advantage of infrared heating technology in dyeing and finishing is that it has high heat conversion efficiency, fast temperature rise, and can save energy at a large rate. For example, in convection heat transfer setting, the fabric is preheated, heated, and heat penetrated in the oven to reach the temperature required for setting. At the setting temperature, it only takes 1 to 2 seconds to complete the setting effect, but the heat penetration time takes about 15 seconds, which limits the increase in vehicle speed. In the case of using infrared heating, after the fabric absorbs infrared radiation energy, the atomic vibration and rotation of its molecules intensify, so the temperature rises quickly, the heat penetration time can be greatly shortened, the vehicle speed can be greatly increased, and energy consumption is reduced.

 

Carbon medium wave infrared heating lamps are designed with special spiral carbon fiber heating filament, which are suitable for fast heating of surface or drying water and inks, and the range of IR radiation wave is 2.0-4.0μm. Because of its low color temperature and matched medium wave infrared radiation, carbon medium wave infrared lamps are widely used in industry screen printing for textiles, emulsion drying, tea drying, food and vegetables drying, civilian application like infrared heater for warming, heating stove and natural herbal medicine.

 





 

We are customized IR lamp manufacturer and we can desing and produce carbon IR lamp for you in different heating types. If you need twin tube carbon medium wave quartz infrared lamp with other specifications, please contact us and we will check the following specifications with you within 4 working hours.

 

1: Total length

2: Tube diameter

3: Lamp voltage

4: Lamp power

5: Reflector