Spray-rolling type loose fiber cold-batch dyeing process

A loose fiber and drench rolling technology, which is applied in the direction of liquid/gas/steam removal with squeeze rollers, spray/jet textile material treatment, textile material carrier treatment, etc., can solve the problem of long dyeing cycle, high energy consumption and high cost and other problems to achieve the effect of accelerating diffusion and uniform distribution

Active Publication Date: 2014-05-07
SHAOXING JINYU TEXITLE NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of long dyeing cycle, poor dyeing uniformity, high energy consumption, and high cost in the existing fiber dyeing technolo...

Method used

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  • Spray-rolling type loose fiber cold-batch dyeing process
  • Spray-rolling type loose fiber cold-batch dyeing process
  • Spray-rolling type loose fiber cold-batch dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, the cold-batch dyeing process of rolling-type loose fibers is combined with figure 1 , including the three steps of pouring dyeing→rolling→stacking and color fixing. Specifically,

[0032] (1) Pad-type dyeing: Cotton box 1 transports loose fibers to the pad-type dyeing device in the form of a cotton blanket, and the guide belt is horizontally conveyed and squeezed-sprayed-squeezed-sprayed-squeezed-sprayed Spray-extrusion-spray-extrusion-spray, during the extrusion process, the extrusion force on the loose fiber is 3-15kg / cm 2 , During the spraying process, the spraying amount of the dyeing liquid is 1.5-2 times of the bulk fiber conveying amount.

[0033] which, combined with figure 2 , the pouring type dyeing device includes a conveying part and a spraying part, and the conveying part includes a pair of upper driving rollers 3 and a pair of lower driving rollers 4, and the upper driving rollers 3 and the lower driving rollers 4 are respectively s...

Embodiment 2

[0039] In this example, the cold-batch dyeing process for bulk fibers of the pouring pad type includes not only the padding padding dyeing, coiling and stacking color fixation, but also the simultaneous dye circulation process. The guide belt is horizontally conveyed, extrusion-spray-extrusion-spray-extrusion-spray-extrusion-spray-extrusion-spray, and the dye circulation process is synchronized with the padding type dyeing. , the dye circulation process is realized by being arranged on the circulation parts below the lower conduction belt 6, and the circulation parts include a sump 12, a return pipe 11, a replenishment pump 16 and a heat exchanger 17, and the return pipe 11 can be provided with a return pipe as required One 11a, return pipe two 11b, return pipe three 11c, return pipe four 11d and return pipe five 11e, return pipe one 11a, return pipe two 11b, return pipe three 11c, return pipe four 11d and return pipe five 11e one end and collector The liquid tank 12 is connec...

Embodiment 3

[0041] Example 3: Conventional Loose Fiber Dyeing

[0042] Dyeing vats are used to dye loose fibers. The dyeing process and process conditions are as follows:

[0043] (1) Pre-treatment: pre-treat the loose fibers under high-temperature alkaline conditions, so that the cotton has better water absorption, which is conducive to the adsorption and diffusion of dyes during dyeing.

[0044] (2) Bleaching and brightening: The pretreated loose fibers are subjected to oxygen bleaching treatment, in which alkali agents and hydrogen peroxide stabilizers need to be added to the oxygen bleaching, and pickling is carried out.

[0045] (3) Dyeing: add dyes and auxiliaries to the bathtub, among which, auxiliaries, salt, sodium sulfate, etc. are needed in the dye, the bath ratio is 1: (10-20), the loose fiber after bleaching and whitening Placed in the dyeing vat, the dyeing solution is transported by the main pump, from the inner layer of the dyeing vat to the outer layer to penetrate and c...

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Abstract

The invention relates to a spray-rolling type loose fiber cold-batch dyeing process, and belongs to the technical field of loose fiber dyeing. The spray-rolling type loose fiber cold-batch dyeing process comprises the steps of spray-rolling type dyeing, coiling and batching fixation, cotton blanket type loose fibers are conveyed to a spray-rolling type dyeing device and horizontally conveyed by a guide belt, after a plurality of groups of spray-rolling dye with alternative squeezing and spraying, the loose fibers are coiled to be loose fiber coils, the loose fiber coils are subjected to the batching fixation at the room temperature for 10-12 hours to complete loose fiber dyeing, the spray-rolling type dyeing process comprises the steps of squeezing, spraying, squeezing, spraying, squeezing, spraying, squeezing, spraying, squeezing and spraying, in the squeezing process, the squeezing force on the loose fibers is 3-15 kg per square centimeters, and in the spraying process, the spraying amount of dyeing liquid is 1.5-2 times the conveying amount of the loose fibers. The spray-rolling type loose fiber cold-batch dyeing process can be used for continuous production, dyeing is even, and cost can be lowered to 1/3-1/5 of the original cost.

Description

technical field [0001] The invention relates to a rolling-type bulk fiber cold batch dyeing process, which belongs to the technical field of bulk fiber dyeing. 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; although cold pad batch dyeing has a high color fixing rate and simple equipment, it is prone to un...

Claims

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Application Information

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IPC IPC(8): D06B1/02D06B15/02D06B23/04D06B23/20
Inventor 金国周金慧娟李侠冯瑶俞水生蔡樑
Owner SHAOXING JINYU TEXITLE NEW TECH CO LTD
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