A kind of loose fiber dyeing device

Abstract

The invention relates to a loose stock dyeing device and belongs to the technical field of stock dyeing devices. The loose stock dyeing device comprises a cotton grabbing device, a net forming device, a steeping device, a mangle device, a coiling device, a cold-batch fixation device, a uncoiling device, a washing device, a squeezing device, a splitting device and a drying device, wherein the cotton grabbing device, the net forming device, the steeping device, the mangle device, the coiling device, the cold-batch fixation device, the uncoiling device, the washing device, the squeezing device, the splitting device and the drying device are sequentially arranged. A loose stock net after squeezing is sent to the splitting device to be split and sent to the drying device to be dried. According to the technical scheme, the defects that continuous production cannot be performed and processing efficiency is low in the prior art are overcome, and the defects that dyeing is uneven, drying efficiency is low and energy consumption is large in drying loose stock with a net-shaped structure are overcome. In the processing process, stock damage is little, and the quality of finished stock products is ensured.

Description

technical field [0001] The invention relates to a loose fiber dyeing device, which belongs to the technical field of fiber dyeing devices. Background technique [0002] Conventional fiber dyeing is carried out in the dyeing vat, and the loose fiber cake is hung into the dyeing vat for dip dyeing. The defects of this method are: 1. During the dyeing process, it is necessary to add auxiliary dyeing accelerators and dyeing enhancers to Ensure the dyeing rate; 2. During the dyeing process, refining, bleaching, washing, softening and other processes are required, the processing process is long and the operation is cumbersome; 3. The dyeing process is carried out by dipping, the dyeing cycle is long, and the dyeing uniformity Not good, the dyeing vat needs to be equipped with main pumps, auxiliary pumps and other devices, which consume a lot of power and energy. [0003] Invention patent (Application No. 201210139796.X) bulk fiber cold pad-batch dyeing machine, including automati...

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Problems solved by technology

[0002] Conventional fiber dyeing is carried out in the dyeing vat, and the loose fiber cake is hung into the dyeing vat for dip dyeing. The defects of this method are: 1. During the dyeing process, it is necessary to add auxiliary dyeing accelerators and dyeing enhancers to Ensure the dyeing rate; 2. During the dyeing process, refining, bleaching, washing, softening and other processes are required, the processing process is long and the operation is cumbersome; 3. The dyeing process is carried out by dipping, the dyeing cycle is long, and the dyeing uniformity Not good, the dyeing vat needs to be equipped with main pumps, auxiliary pumps and other devices, which consume a lot of power and energy

[0005] First, the repeated coiling and unwinding processes affect the mechanical properties of loose fibers

In patent 201210139796.X, after the loose fiber is dyed with the dye solution in the immersion tank, it has to go through multiple coiling and unwinding processes. The coiling process needs to form a compact structure under high pressure conditions, and the fibers are bonded together. It is required that a strong force must be used in the matching unwinding process to spread the loose fiber rolls, but repeated unwinding in multiple channels will cause fiber damage, high fiber content, and multiple unwinding will cause fiber damage. The cohesion force between them is poor, the hairiness content is high in subsequent use, the spinnability becomes poor, and the pilling phenomenon is serious, which affects the final mechanical properties of loose fibers, and it is difficult to improve the fiber quality.

[0006] Second, coiling and unwinding lead to uneven fiber distribution and poor drying effect, which in turn affects the dyeing uniformity of finished fibers

In patent 201210139796.X, based on the rolling process, the loose fiber web is formed into a loose fiber roll under high pressure conditions. The fibers in the loose fiber roll are seriously bonded together. To ensure good drying, the prerequisite is to completely loosen the fibers. Now, although multi-pass unwinding satisfies the opening effect, it also damages the fibers. Too few unwinding times will affect the loosening of loose fibers, uneven distribution of loose fibers, and deviations in the quality of loose fibers per unit area. Directly affect the drying effect, and finally make the loose fiber dyeing uneven and poor in appearance, and this defect cannot be made up in the post-processing process, sometimes it will expand the effect and affect the quality of the loose fiber

[0007] Third, the energy consumption is large and the processing efficiency is low

In patent 201210139796.X, many coiling devices and unwinding devices are used. These devices need a large amount of steam to provide power for them during use, and coiling and unwinding are relatively time-consuming processes. It prolongs the processing time as a whole, and the daily fiber processing amount is limited, which is contrary to the high-efficiency production purpose of its continuous mode, and the practicability is not good.

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