Supercritical carbon dioxide printing and dyeing technology and system

A technology of carbon dioxide and printing and dyeing process, applied in the field of printing and dyeing, can solve the problems of redundant equipment, substandard product uniformity, heat loss, etc., reduce equipment cost and heating cost, speed up the diffusion and adsorption process, and improve printing and dyeing efficiency Effect

Pending Publication Date: 2019-12-13
SHANGHAI FULUDI FLUID TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing supercritical carbon dioxide printing and dyeing process is only semi-continuous, and the dyeing kettle has no thermal insulation measures, resulting in a large amount of heat loss in the process; only a one-way circulation pump is configured in the dyeing process, resulting in the uniformity of product dyeing. Certain problems; the existing dyeing auxiliaries have not achieved the best dyeing effect; the existing supercritical carbon dioxide printing and dyeing process has not been effectively combined with the effect of ultrasound; the remaining dye liquor has not been recovered in a continuous cycle production Utilization, these factors cause the current supercritical carbon dioxide printing and dyeing process to be in a state of low efficiency, high energy consumption, high cost, and low benefit, and there are problems of substandard product uniformity and lengthy equipment

Method used

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  • Supercritical carbon dioxide printing and dyeing technology and system
  • Supercritical carbon dioxide printing and dyeing technology and system
  • Supercritical carbon dioxide printing and dyeing technology and system

Examples

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Embodiment 1

[0037] please participate figure 1 As shown, a kind of supercritical carbon dioxide printing and dyeing process is provided, comprising the steps:

[0038] (1) Convert liquid carbon dioxide into supercritical carbon dioxide after pressurization and heat treatment;

[0039] (2) mixing supercritical carbon dioxide and dyestuff to form a dye liquor;

[0040] (3) Pass the dyeing solution into the dyeing kettle, and dye the spindles from the spindle inlet end under the action of ultrasonic waves and bidirectional circulation. After the spindles are dyed mature, the spindles are sent out from the spindle outlet end to enter the next process;

[0041] (4) Collect the remaining dye liquor after dyeing and carry out decompression and separation treatment, and the separated dye and supercritical carbon dioxide are respectively purified and dried as the liquid carbon dioxide raw material of step (1) and the liquid carbon dioxide raw material of step (3). The above-mentioned dye raw mat...

Embodiment 2

[0047] see figure 1 Shown, provide a kind of supercritical carbon dioxide printing and dyeing system as described technology, this supercritical carbon dioxide printing and dyeing system comprises: CO 2 Storage tanks, dye tanks, dyeing tanks, dye collection tanks, decompression cooling units and extraction separation units, of which:

[0048] The CO 2 The storage tank is sequentially connected to the dye tank through a pipeline through a filter unit, a drying unit, a heating unit and a pressurizing unit, so that the CO 2 The carbon dioxide in the storage tank is converted into supercritical carbon dioxide after being pressurized and heated, and the supercritical carbon dioxide is passed into the dye tank and mixed with the dye to form a dye liquor;

[0049] The dye tank is connected to the dyeing kettle through the auxiliary tank and the flowmeter in turn through the pipeline, and is used to send the dye solution into the dyeing kettle to dye the spindles from the spindle in...

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Abstract

The invention discloses a supercritical carbon dioxide printing and dyeing technology and system. The supercritical carbon dioxide printing and dyeing technology comprises the steps that (1), liquid carbon dioxide is transformed into supercritical carbon dioxide; (2), the supercritical carbon dioxide is mixed with dye to form dye liquor; (3), the dye liquor is introduced into a dyeing kettle, andspindles from a spindle feeding end are dyed under the action of ultrasonic waves and bidirectional circulation; (4), the remaining dye liquor obtained after dyeing is collected, decompressed and separated, and the dye and the supercritical carbon dioxide which are obtained after separation are separately purified and dried to be recycled. The printing and dyeing technology and system have the advantages that no waste dyeing water or other wastes are generated, environment-friendly and clean production can be achieved, the economic benefits are high, and the environmental benefits are significant, and the aims of recycling, flowline production, improvement of the yield and reduction of industrial cost can be achieved.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a supercritical carbon dioxide printing and dyeing process and a printing and dyeing system thereof. Background technique [0002] The existing supercritical carbon dioxide printing and dyeing process is only semi-continuous, and the dyeing kettle has no thermal insulation measures, resulting in a large amount of heat loss in the process; only a one-way circulation pump is configured in the dyeing process, resulting in the uniformity of product dyeing. Certain problems; the existing dyeing auxiliaries have not achieved the best dyeing effect; the existing supercritical carbon dioxide printing and dyeing process has not been effectively combined with the effect of ultrasound; the remaining dye liquor has not been recovered in a continuous cycle production Utilization, these factors cause the current supercritical carbon dioxide printing and dyeing process to be in a st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/94D06P1/44D06P3/52D06P3/60D06B9/02D06B9/06D06B13/00D06B23/20
CPCD06P1/94D06P1/445D06P3/52D06P3/60D06B9/02D06B9/06D06B13/00D06B23/20Y02P70/62
Inventor 杨景峰
Owner SHANGHAI FULUDI FLUID TECH CO LTD
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