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High-strength dispersing slurry dye mixture and application thereof

A dye mixture and disperse dye technology, which is applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of reducing the sales range of dyes, consuming energy to dry waste gas, and increasing transportation costs, etc., to achieve shortened production process and high strength. , The effect of reducing the production of industrial waste gas

Pending Publication Date: 2020-04-24
HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of liquid disperse dyes currently on the market is low, which increases transportation costs and reduces the sales range of dyes
Granular dyes can achieve high strength and long-lasting stability, but granular disperse dyes need to be pulverized and dried during the production process, which consumes energy and produces a lot of dry waste gas
Granular dyes also generate a lot of dust during use, making the working environment poor
[0004] Moreover, due to the addition of a large amount of dispersants in the production process of liquid dyes and granular dyes, a large amount of high-COD wastewater will inevitably be produced in the production process of the printing and dyeing industry

Method used

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  • High-strength dispersing slurry dye mixture and application thereof
  • High-strength dispersing slurry dye mixture and application thereof
  • High-strength dispersing slurry dye mixture and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Step 1, at room temperature, weigh 15.7 grams of disperse blue dye 291:4, 1.8 grams of disperse blue dye 79:1, 6.6 grams of disperse violet dye N-2R, 15.9 grams of disperse orange dye 288, 3.2 grams of glycerin, 2.0 grams of disperse Agent NNO, 1.5 grams of methyl stearate polyoxyethylene ether sulfonate, 0.5 grams of sodium secondary alkyl sulfonate, 2.5 grams of oleyl alcohol polyoxyethylene ether, 2.5 grams of glycerin polyoxyethylene ether, 0.5 grams of glycerin polyoxyethylene Ether oleic acid ester, add 53.5 g of water and quickly beat evenly.

[0062] In step 2, the slurry is put into a sand mill for circular grinding for 3-4 hours until the fineness is 300nm-500nm.

[0063] Step 3, after filtering, high-strength slurry-like disperse dyes are obtained.

[0064] Repeat the method of Example 1, adopt different dye proportions, select different auxiliary agents and solvents, and make different high-strength dispersed paste dye mixtures. The formulas of each embodim...

experiment example 1

[0073] Embodiment 1 and commercially available granular disperse dyes were subjected to performance tests. The specific test method is as follows: Weigh 0.5 g of the granular disperse dyes of Example 1 and Comparative Example and place them in 500 mL of water respectively to prepare a disperse dye suspension. Take 50mL of disperse dye suspension and mix it with 50mL of water, adjust the pH of the dyeing bath to 5 with acetic acid, then raise the temperature to 60°C, and at the same time put 5g of polyester fiber into it for high temperature and high pressure dyeing, heat up to 130°C within 35 minutes, keep warm After 45 minutes, cool to 80°C and sample.

[0074] Observe the shade of the cloth sample and measure its dye strength and apparent depth using the method specified in GB / T6688-2008, and measure the COD of the dyeing residual liquid with Lianhua Technology 5B-3V V8 Rapid Chemical Oxygen Demand Tester. The measured data is shown in Table 2.

[0075] Table 2

[0076] ...

experiment example 2

[0079] Performance tests were performed on Examples 2-11 and the corresponding commercially available granular disperse dyes. The specific test method is as follows: Weigh 0.5 g of the granular disperse dyes of the examples and the corresponding comparative examples and place them in 500 mL of water respectively to prepare a disperse dye suspension. Take 50mL of disperse dye suspension and mix it with 50mL of water, adjust the pH of the dyeing bath to 5 with acetic acid, then raise the temperature to 60°C, and at the same time put 5g of polyester fiber into it for high temperature and high pressure dyeing, heat up to 130°C within 35 minutes, keep warm After 45 minutes, cool to 80°C and sample.

[0080] Lianhua Technology 5B-3V V8 Rapid Chemical Oxygen Demand Tester was used to measure the COD of the dyeing residue, and the measured data are shown in Table 3.

[0081] table 3

[0082]

[0083]

[0084] Comparing the high-strength disperse paste dye mixture prepared in E...

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Abstract

The invention discloses a high-strength dispersing slurry dye mixture and an application thereof, belongs to the field of fabric printing and dyeing, and relates to a high-strength dispersing slurry dye and an application thereof. The dispersing slurry dye mixture is an efficient dispersing system consisting of an anionic surfactant, a nonionic surfactant and a solvent, and is used for assisting the crushing of dye particles and preventing crushed particles from re-aggregating or caking. The problems of low strength of common liquid dispersing dyes and generation of a large amount of waste gasand high-COD printing and dyeing wastewater in the production and use processes of granular dispersing dyes are solved, by reducing the content of the auxiliary agents and compounding a solvent in the auxiliary agents. The invention also provides an application of the high-strength dispersing slurry dye mixture in products and fiber products. When the dip dyeing, printing and pad dyeing processesare carried out, medium-light color fabrics and fiber products are free of water washing, and dark color fabrics and fiber products are subjected to light water washing or reduction washing, so thatthe production of printing and dyeing wastewater is reduced, the energy is saved, the environment is protected, and the market application potential is very good.

Description

technical field [0001] The invention belongs to the field of fabric printing and dyeing, and in particular relates to a high-strength dispersed slurry dye mixture and its application. Background technique [0002] In recent years, with the country's higher and higher requirements for environmental protection, the "Discharge Standards for Pollutants in Textile Dyeing and Finishing Industry" (GB4287-2012) was promulgated, which reduced the COD limit for wastewater discharge in the dyeing and finishing industry from 500ppm to 200ppm, which is of great importance to The wastewater discharge of the dyeing and finishing industry puts forward higher requirements. [0003] At present, the main dosage forms of commercially available dyes are liquid dyes and granular dyes. Due to its advantages of simple production method, convenient use and operation, and improved dyeing performance, liquid disperse dyes are highly valued by printing and dyeing factories, and their development speed...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/40D06P1/16
CPCC09B67/0033C09B67/0082C09B67/0084C09B67/0089D06P1/16
Inventor 邵辉盛学斌孙岩峰朱毅陈美芬俞超
Owner HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
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