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A printing and dyeing wastewater reuse system and fabric printing and dyeing method

A technology for printing and dyeing wastewater and fabrics, applied in water pollutants, chemical instruments and methods, textile industry wastewater treatment, etc., can solve the problems of waste of dye resources, water environment pollution, etc., to protect the environment, save water resources, and improve purification The effect of action

Active Publication Date: 2021-10-22
HANGZHOU XINYUAN PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above operation process will not only cause the pollution of the water environment, but also cause a waste of dye resources, so a new technical solution needs to be proposed to solve the above problems

Method used

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  • A printing and dyeing wastewater reuse system and fabric printing and dyeing method
  • A printing and dyeing wastewater reuse system and fabric printing and dyeing method
  • A printing and dyeing wastewater reuse system and fabric printing and dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: a kind of printing and dyeing wastewater reuse system, such as figure 1 shown, including:

[0047] Dyeing vats are used for dyeing of light-colored or dark-medium-colored fabrics.

[0048] The regulating pool is used to collect light-colored or dark-colored dye water, and to neutralize acid and alkali. Pipeline 1 is arranged on the regulating pool. The electromagnetic ball valve (manufactured by Changzhou Gaoda Valve Control Co., Ltd.). At this time, open the above-mentioned electromagnetic ball valve, and the dye water in the dyeing vat can flow from the dyeing vat to the adjustment tank through the pipeline for collection. Then the operator first removes the small sample, and uses PH test paper to detect the acid-base content of the small sample, and then according to the test results, If the dye water is alkaline, add 30% dilute sulfuric acid for neutralization; if the dye water is acidic, you need to add lime water to adjust to neutral.

[0049] The...

Embodiment 2

[0053] Embodiment 2: a kind of method of fabric printing and dyeing, the method for fabric printing and dyeing that adopts the printing and dyeing wastewater recycling system in embodiment 1, it comprises the following specific operation steps:

[0054] Step S1, clear water and deep neutral color dye are mixed under the condition of bath ratio of 1:2 to obtain deep neutral color dye water.

[0055] Step S2, import the fabric into the dye vat, add the deep neutral color dye water obtained in step S1, and carry out dyeing treatment by hot-melt dyeing at 100°C, heat-melt for 3 minutes to obtain dark neutral-color fabric, cool to 45°C drop cloth.

[0056] Step S3. Discharging the dark neutral color dye water into the adjustment tank through pipeline 1 for acid-base neutralization treatment, and then introducing it into the air flotation tank through connecting pipe 1 for air flotation treatment, and extracting the upper liquid to obtain dyeing and weaving water one.

[0057] Ste...

Embodiment 3

[0064] Embodiment 3: A method for fabric printing and dyeing, the difference from Embodiment 2 is that in step S1, the bath ratio of clear water and deep neutral color dye is 1:3.5.

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PUM

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Abstract

The invention discloses a printing and dyeing wastewater recycling system and a fabric printing and dyeing method, which belong to the field of textile technology. The technical points are as follows: a printing and dyeing wastewater recycling system, which includes a dyeing tank, a regulating tank, an air flotation tank, and a filtering device. Among them, a pipeline 1 is provided on the regulating tank, and the other end of the pipeline 1 is connected with the water outlet of the dyeing vat; a liquid inlet and a liquid outlet are arranged on the air flotation tank, and the liquid inlet and the liquid outlet of the air flotation tank are connected to each other. Connecting pipe 1 is provided; connecting pipe 2 is provided between the water inlet of the filter device and the liquid outlet of the air flotation tank; a drain pipe is provided on the filter device, and the other end of the drain pipe is connected to the water inlet of the dye vat; pipe 1, The connecting pipe one, the connecting pipe two and the drain pipe are all provided with valves. On the basis of ensuring the dyeing quality, the invention further improves the reuse rate of dye wastewater, improves the treatment efficiency of printing and dyeing wastewater, further saves water resources and protects the environment.

Description

technical field [0001] The invention belongs to the technical field of textiles, and more specifically relates to a printing and dyeing wastewater recycling system and a fabric printing and dyeing method. Background technique [0002] In the textile printing and dyeing process, the dyeing vat refers to a large vat used to dye yarn, which can be used for yarn dyeing and post-finishing and finalizing equipment. [0003] At present, when the dyeing process of a batch of cloth is completed, the operator will directly discharge the dyed waste dye through the drain pipe, and at the same time clean the dyeing vat and add the prepared new dye to the dyeing vat for dyeing. . The above-mentioned operation process will not only cause the pollution of the water environment, but also cause the waste of dye resources, so a new technical solution needs to be proposed to solve the above-mentioned problems. Contents of the invention [0004] In view of the deficiencies in the prior art, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F9/14D06B23/20C02F103/30C02F101/30
CPCC02F1/001C02F1/24C02F1/5245C02F1/66C02F3/1215C02F9/00C02F2101/308C02F2103/30C02F2209/08C02F2301/08D06B23/20
Inventor 王海军李海炎
Owner HANGZHOU XINYUAN PRINTING & DYEING