Method and device for dyeing by utilizing ultrasonic wave and microwave

Abstract

The invention provides a method and device for dyeing by utilizing ultrasonic waves and microwaves. The dyeing device comprises a water storage tank WT001, a dye kettle DT001, a dyeing kettle DT002, a separator ST001, an ultrasonic generator SW001-1, an ultrasonic generator SW001-2, an ultrasonic transducer SW001, an ultrasonic transducer SW002 and a microwave generator MW001. The dyeing method comprises the steps of: preparing dye liquor under the action of ultrasonic waves, dyeing fabric under the action of ultrasonic waves and microwaves, treating the dye liquor after dyeing, and recycling the recovered water and dye. The method and device for dyeing has the following benefits: the dyeing efficiency and the dyeing effect are effectively improved without using assistants, and the dye can be recycled; and simultaneously, the dyeing device has simple structure, is convenient to control, reduces energy consumption and saves water resources.

Description

technical field [0001] The invention relates to a dyeing method and a device thereof, in particular to a dyeing method and a device using ultrasonic waves and microwaves. Background technique [0002] At present, the dyeing method of textiles is mainly to mix dyes and auxiliaries in water to form a dye solution of a certain concentration, and to dye textiles under a certain temperature and pressure. The disadvantage is that the water consumption in the dyeing process is too much , The energy consumption of wastewater treatment is too large, the utilization rate of dyestuff is low, and the production cost is high, which is not conducive to low carbon, ecology and environmental protection. At the same time, due to the use of a large number of auxiliary agents, it is difficult to separate the dye from the auxiliary agent, which is not conducive to the recycling of the dye. In recent years, people have developed the use of supercritical CO 2 The method for dyeing textiles, alt...

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Problems solved by technology

[0002] At present, the dyeing method of textiles is mainly by mixing dyes and auxiliary agents in water to form a dye solution of a certain concentration, and dyeing textiles under a certain temperature and pressure. The disadvantage is that the water consumption in the dyeing process is too much , the energy consumption of wastewater treatment is too large, the utilization rate of dyestuffs is low, and the production cost is high, which is not conducive to low-carbon, ecological and environmental protection

At the same time, due to the use of a large number of additives, it is difficult to separate the dyes from the additives, which is not conducive to the recycling of dyes

In recent years, people have developed the use of supercritical CO 2 The method for dyeing textiles, although it has the advantages of no pollution, no need to dry the dyed fabric, save water resources, etc., also has the following deficiencies: one is in the whole dyeing process, in order to keep the CO 2 In the supercritical state, the pressure needs to reach about 7.38MPa. This kind of high pressure state has high requirements on equipment and complicated operation, which is very unsuitable for industrialization.

The second is CO 2 The supercritical state is not easy to maintain, and it is easy to be destroyed and affect its dyeing efficiency

Third, due to CO 2 Due to its non-polar characteristics, it can only dissolve non-polar or low-polar dyes, so the suitable dyes are greatly limited. Generally, disperse dyes are commonly used, and the dyed varieties are very limited.

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