Ammonia continuous mercerizing machine and processing method of fiber braid

Abstract

The invention relates to the field of fiber mercerizing processing, in particular to a mercerizing machine used for liquid ammonia mercerizing processing of fibers after the fibers are braided into fiber braids. The mercerizing machine comprises a pre-drying area, a cooling area, an ammonia soak reacting area, an ammonia separating area and a liquid ammonia recycling area, wherein the pre-drying area and the cooling area are used for reducing water content of fiber braids below 3%, the ammonia separating area is a closed pressurized area which uses hot air to heat fiber braids to enable liquid ammonia to evaporate into a gaseous state. The fiber braids soak and roll on the liquid ammonia after entering the ammonia soak reacting area, and then enters the ammonia separating area, and the liquid ammonia is heated by hot air to evaporate into gaseous ammonia. The gaseous ammonia is converted into liquid ammonia by each separator inside the liquid ammonia recycling area and is stored to becyclically used. The ammonia continuous mercerizing machine and the processing method of the fiber braid achieves continuous liquid ammonia mercerizing of the fiber braids, provides industrial applications of fiber mercerizing with equipment foundations, and at the same time has the advantages of being large in output, simple to operate, and saving water resources, reducing discharging of polluted water, and high in mercerizing quality.

Description

technical field [0001] The invention belongs to the field of textile machinery processing, and in particular relates to a processing device for continuous mercerizing of fiber braids in liquid ammonia. Background technique [0002] Liquid ammonia mercerizing is also called liquid ammonia finishing. Liquid ammonia refers to liquid ammonia, also known as anhydrous ammonia. It is not an aqueous solution of ammonia, but a colorless liquid, which is formed by ammonia gas at -33.5°C. The viscosity and surface tension of liquid ammonia are very small, so it can easily penetrate into the fiber, change the crystal structure of the fiber, produce a series of performance changes, and at the same time not damage the fiber and easily separate from the fiber. Liquid ammonia can penetrate into the fiber instantly to make the fiber swell evenly. The reaction process is soft and uniform, producing a mercerizing effect and improving the gloss. At the same time, it can improve the wear resista...

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Problems solved by technology

[0004] The invention mainly provides a continuous liquid ammonia mercerizing equipment for fiber braids, which has multiple functions such as fiber ammonia immersion reaction, heat treatment deammonization, ammonia recovery, etc., realizes effecti...

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