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Ammonia dyeing technology and equipment

A technology, the technology of dyeing kettle, applied in the direction of dyeing method, equipment configuration for processing textile materials, textiles and papermaking, etc., can solve the problems of increased expenditure, environmental pollution, etc., and achieve easy operation, reduced production costs, simple and practical equipment and processes Effect

Pending Publication Date: 2020-04-28
代勇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only greatly increases the enterprise's expenditure on wastewater treatment, but also frequently causes large-scale environmental pollution vicious accidents due to substandard wastewater treatment.

Method used

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  • Ammonia dyeing technology and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step (1): The precondition is attached figure 1 All valves and kettle bodies in the tank are closed;

[0041] Step (2): open the lid of the dyeing still, put 25g white viscose cloth with a moisture content of 10% into the dyeing still, the still is airtight, put 1.2g reactive Yuanqing B150 dye into the dye still, and the still is airtight;

[0042] Step (3): Open valve 4, valve 5, valve 9, and valve 11, start the vacuum pump, vacuumize the preheater, dyeing kettle, dye kettle, cooler, and separator, and the vacuum degree is ≥ 5Pa to turn off the vacuum pump, and at the same time Close all the above valves;

[0043] Step (4): Open valve 1 and valve 2, turn on the preheater and fluid pump, inject 500mL of liquid ammonia heated to 40°C into the dye kettle, and let it stand for 2 minutes; then open valve 4, and pour the liquid ammonia that dissolves the dye The dyeing solution is poured into the dyeing kettle, and then the preheater and the fluid pump are turned off, and ...

Embodiment 2

[0052] Step (1): The precondition is attached figure 1 All valves and kettle bodies in the tank are closed;

[0053] Step (2): Open the kettle lid of the dyeing kettle, put 250g white loose cotton fibers with a moisture content of 8% into the dyeing kettle, keep the kettle airtight, and put 1.2g of the reactive blue EC-R dyestuff of Noviclon brand into the dyeing kettle In the kettle, the kettle is sealed;

[0054] Step (3): Open valve 4, valve 5, valve 9, and valve 11, start the vacuum pump, vacuumize the preheater, dyeing kettle, dye kettle, cooler, and separator, and the vacuum degree is ≥ 5Pa to turn off the vacuum pump, and at the same time Close all the above valves;

[0055] Step (4): Open valve 1 and valve 2, turn on the preheater and fluid pump, inject 500mL of liquid ammonia heated to 35°C into the dye kettle, and let it stand for 3 minutes; then open valve 4, and pour the liquid ammonia that dissolves the dye The dyeing solution is poured into the dyeing kettle, ...

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Abstract

The invention relates to equipment and method adopting a technology of dyeing various cellulosic fibers including cotton fibers and linen fibers with a reactive dye or a direct dye by using ammonia asa medium, and belongs to the technical field of textile dyeing. Liquid ammonia, a dye and cellulosic fibers are placed in a pressure container, three technical process steps of dyeing, heating colorfixing and removal of floating color of the dyed cellulosic fibers are implemented on the cellulosic fibers, all the steps are completed in one set of device, and the technology belongs to a green andpollution-free dyeing technology.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing. More specifically, the present invention relates to a technique for dyeing various cellulose fibers including cotton fibers and hemp fibers with reactive dyes or direct dyes using ammonia as a medium. Background technique [0002] The textile industry is an important industry for the development of China's national economy. At present, the dyeing of cellulose fibers such as cotton and linen in my country still uses water as the medium for dyeing, which consumes nearly one billion tons of pure water annually and produces an equivalent amount of sewage discharge. This not only greatly increases the expenditure of enterprises on wastewater treatment, but also frequently causes serious accidents of large-scale environmental pollution due to substandard wastewater treatment. my country is a big country in the textile industry, and it is also a country that lacks fresh water resources, and its...

Claims

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Application Information

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IPC IPC(8): D06B3/10D06B23/20D06B23/22D06P1/00D06P1/38D06P1/81D06P3/60D06P3/66D06P5/20
CPCD06B3/10D06B23/205D06B23/22D06B23/20D06P1/81D06P5/2066D06P5/2077D06P1/38D06P1/00D06P3/66D06P3/60Y02P70/62
Inventor 代勇苏海
Owner 代勇
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