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A low-emission supercritical fluid jigger process

A supercritical fluid and supercritical technology, applied in solvent dyeing, liquid/gas/steam textile material treatment, liquid/gas/steam open width fabric treatment, etc., can solve equipment investment and operation costs, dyeing medium discharge, preparation time dyeing Low media reuse efficiency, inability to achieve high-quality dyeing of fabrics, technical indicators such as level dyeing and dyeing depth are difficult to reach a high level, etc., to achieve the effects of shortening preparation time, improving equipment utilization, and shortening total dyeing time

Active Publication Date: 2018-01-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention is limited to the supercritical carbon dioxide dyeing of polylactic acid fibers, which cannot achieve high-quality dyeing of fabrics
Subsequently, on January 2, 2008, the Patent Office of the State Intellectual Property Office of China authorized a patent with the announcement number CN100359091C and the name "Technical Method for Supercritical Carbon Dioxide Dyeing". This method can realize the recovery of unfixed dyes and realize Recycling of dyeing medium carbon dioxide; the Patent Office of the State Intellectual Property Office of China authorized a patent with the announcement number CN102817194B on March 26, 2014, entitled "A Method and Device for Static Dyeing Using Supercritical Fluid". The patent provides a supercritical fluid static dyeing process. The dyeing process is simple and the dyeing equipment is easy to clean. The disadvantage is that the dyeing process belongs to static dyeing, and its technical indicators such as level dyeing and dyeing depth are difficult to reach a high level.
None of the above three patents overcomes the shortcomings of the current supercritical fluid dyeing process, such as complicated process, large investment in equipment, high operating costs, high discharge of dyeing media, long preparation time before dyeing, and low reuse efficiency of dyeing media

Method used

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  • A low-emission supercritical fluid jigger process
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  • A low-emission supercritical fluid jigger process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, a low-emission supercritical fluid jigger process with a built-in circulating compressor.

[0025] Such as figure 1 As shown, the low-emission supercritical fluid jigger process with a built-in circulating compressor passes through supercritical fluid medium liquefaction storage system 1, supercritical fluid dyeing subsystem 2, supercritical fluid storage subsystem 3, pipeline 4, and intermediate heat accumulator 5 and filling control subsystem 6 implementation.

specific Embodiment approach

[0026] The specific implementation of the low-emission supercritical fluid jigger process with a built-in circulating compressor in the present invention is as follows:

[0027] 1. Initialization of jigger A D201 in supercritical fluid dyeing subsystem 2: as Figure 4 As shown, turn on the dye jigger AD201, start the motor A M1 to wind the dyed material onto the cloth roll A 2-5, and sew the free end of the dyed material to the leading cloth on the cloth roll B 2-7; It is required to add a sufficient amount of dye in the supercritical chromatin distributor 2-6, and determine whether to add a dye cosolvent according to the solubility of the dye, fiber type, and dyeing process conditions. For example, when dyeing polyester fiber fabrics with disperse red 60 Add dye cosolvent, when dyeing flax or hemp fabric with disperse blue dye, add dye cosolvent to carry out enzyme ion modification, dye pure cotton fabric with disperse dark blue S-3BG dye, you need to add dye cosolvent polyca...

Embodiment 2

[0035] Embodiment 2, a low-emission supercritical fluid jigger process for external circulation with a single external circulation compressor.

[0036] Such as figure 2 As shown, the low-emission supercritical fluid jigger dyeing process with a single external circulation compressor and external circulation passes through supercritical fluid dyeing medium liquefaction storage subsystem 1, supercritical fluid dyeing subsystem 2, supercritical chromatin storage system 3, pipeline 4. The intermediate heat accumulator 5 and the flow measurement control subsystem 6 are implemented.

[0037] The specific implementation of the low-emission supercritical fluid jigger process with a single external circulating compressor in the present invention is as follows:

[0038] 1. Initialization of jigger A D201 in supercritical fluid dyeing subsystem 2: as Figure 5 As shown, turn on the dye jigger AD201, start the motor A M1 to wind the dyed material onto the cloth roll A 2-5, and sew the ...

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Abstract

The invention relates to the field of textile dyeing, in particular to a low-emission supercritical fluid jig dyeing technology. The low-emission supercritical fluid jig dyeing technology is implemented through a supercritical fluid medium liquefaction and storage subsystem, a double-jig-dyeing-machine supercritical fluid dyeing subsystem, a supercritical fluid depositing subsystem, a middle heat storage subsystem, a filling control subsystem and pipelines. The technology comprises the steps that 1, a first jig dyeing machine is initialized; 2, the first jig dyeing machine is filled with a supercritical fluid medium and subjected to supercritical treatment; 3, supercritical fluid jig dyeing is conducted through the first jig dyeing machine; 4, a second jig dyeing machine is initialized; 5, a dyed object is removed from the first jig dyeing machine, and the second jig dyeing machine is filled with the supercritical fluid medium and subjected to supercritical treatment and conducts dyeing for the first time; 6, a dyed object is removed from the second jig dyeing machine, and the first jig dyeing machine is initialized, filled with the supercritical fluid medium and subjected to supercritical treatment and conducts dyeing for the second time; 7, the first jig dyeing machine and the second jig dyeing machine are exchanged, and the step 6 is repeatedly conducted. According to the low-emission supercritical fluid jig dyeing technology, the procedures are easy and convenient to operate, equipment investment and operation cost are low, the preparation time is short, the dyeing efficiency is high, and fluid medium emission is low.

Description

1. Technical field [0001] The invention relates to the field of textile dyeing, in particular to a low-emission supercritical fluid jigger dyeing process. 2. Technical background [0002] The traditional water dyeing process will bring a large amount of industrial wastewater, which has a high COD value and a large amount of ammonia nitrogen discharge, which has brought serious damage to the ecological environment and posed a huge threat to the lives and health of residents. The problem of water pollution seriously restricts the development of traditional dyeing industry. According to statistics, the ratio of fabric weight to water consumption for textile printing and dyeing processing is as high as 1:100-1:150, and the national water consumption for printing and dyeing processing is estimated to be 1.6 billion tons a year. At present, the proportion of water reuse in the production process of this industry is very low, and the proportion of sewage treatment and discharge to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B9/02D06B9/06D06B3/32D06B23/20D06B23/22
CPCD06B3/32D06B9/02D06B9/06D06B23/20D06B23/22D06B19/00
Inventor 王威强王胜德陈银曲延鹏刘燕
Owner SHANDONG UNIV