CN103498352B - Method for removing unfixed reactive dye by using waste heat of dye fixing liquid - Google Patents
Method for removing unfixed reactive dye by using waste heat of dye fixing liquid Download PDFInfo
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- CN103498352B CN103498352B CN201310400926.5A CN201310400926A CN103498352B CN 103498352 B CN103498352 B CN 103498352B CN 201310400926 A CN201310400926 A CN 201310400926A CN 103498352 B CN103498352 B CN 103498352B
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- dye
- soaping
- reactive dye
- soaping agent
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Abstract
The invention provides a method for removing an unfixed reactive dye by using waste heat of dye fixing liquid, which relates to dyeing and finishing post-processing methods for knitted pure cotton fabrics. According to the invention, an oxidation component in a composite oxidative soaping agent is utilized, and a peroxy activator and a high-molecular polymer are employed for coordination of constituents; an oxidizing group acts on a chromophoric function group in the structure of a hydrolyzed reactive dye in a residual solution to accelerate an oxidation-decomposition reaction of the hydrolyzed reactive dye in the solution so as to decolor residual soaping liquid, thereby achieving the purpose of removal of the unfixed hydrolyzed reactive dye in the residual liquid. The method is simple, has simplified procedures, directly carries out soaping by using water with a temperature of 80 DEG C in a same bath and utilizes heat energy in the residual liquid. Through usage of the composite soaping agent, the unfixed reactive dye in dye liquor after soaping is decomposed, the chroma and the COD value of wastewater are substantially reduced, washing frequency and water consumption are reduced, discharged sewage is basically colorless, and the purposes of conservation of time and water, reduction in production cost of an enterprise and mitigation of pollution to the environment are achieved.
Description
Technical field:
The present invention relates to the dyeing and finishing post-processing approach of knitted cotton fabric, specifically a kind of heat energy utilizing the fixation liquid of reactive dyeing, add the method that compound oxidizing soaping agent removes the remaining loose colour of pure cotton knitted fabric.
Background technology
At present in pin textile enterprise, all to carry out post processing after dyeing for pure cotton knitted fabric, the materials such as the loose colour on pure cotton knitted fabric, alkaline agent be carried out cleaning and remove, make the COLOR FASTNESS requirement that fabric reaches good.Current post processing divides six procedures substantially: overflow, acid neutralization, first pass are soaped, are soaped for second time, 80 degree hot water wash, 60 degree wash fixation; Overflow be by swimming in impurity on operating fluid level, dirt overflow is fallen.Acid neutralization utilizes acid that residual alkalinity dyestuff is carried out neutralisation treatment, and soaping is the non-set dyestuff adopting soaping agent to wash away fabric face.Its technological process is long, consumes energy larger.Directly increase enterprise's production cost.In addition, because the soaping agent adopted is undesirable, make the colourity of raffinate after washing can not get reducing, for subsequent wastewater treatment adds difficulty, emit and cause the pollution to environment.
Summary of the invention
For the problems referred to above.The object of this invention is to provide a kind of flow process short, the pure cotton knitted fabric dyeing and finishing post-processing approach method of low-carbon environment-friendly, solve fixation that existing method exists and soap that different bath, energy consumption are large, long flow path problem, improve the quality of products, reduce enterprise's production cost.Reach discharge standard.
The present invention is achieved by following technical solution, and knitted cotton fabric conveniently technique carries out dyeing, after sour neutralisation treatment, adds compound oxidizing soaping agent and soap, carry out hot water wash after soaping.Concrete scheme is as follows:
1 combined oxidation type soaping agent technical formula
Composition by weight percent
Peracetic acid sodium (technical grade) 45-55%;
Peregal 18 (technical grade) 15-20%
EDTA (technical grade) 20-25%;
The anion of molecular weight 7000 ~ 8000
Polyacrylamide (technical grade) 10-15%
By above-mentioned material mixing and stirring, namely become compound oxidizing soaping agent
2 soap technique
In dye liquor, combined oxidation type oxidation soaping agent is directly added after neutralisation treatment.The addition of soaping agent is the 40-50% of dye dosage.Be warming up to 80 degree again.Arrival keeps 15-20 minute after needing temperature, cycle operation.
3 hot water wash
After soaping, overflow washing process is carried out to stained clot-h, after process, dye liquor is drained, then carry out 80 degree of hot water wash.Keep running 15 minutes.
Principle of the present invention is: with oxidizing component in compound oxidizing soaping agent, adopts peroxide activator and high molecular polymer to coordinate component.Act on the structural color development functional group of hydrolised dye in remaining solution by oxide group, and accelerate the oxidation-decomposition reaction of hydrolised dye in solution, make raffinate decolouring of soaping; Secondly, need the cooperative effect of the high molecular polymer contained in by soaping agent at the hydrolised dye of the non-set of fibrous inside, extract through fiber finer microchannel, move, be dissolved or dispersed in washing lotion; In addition, in soaping agent compound composition in preventing flocculation component a kind of special systemic effect, prevent other wadding fibrous or impurity absorption in fabric face, the chromophoric group on dye structure makes its colour killing, reaches the object removing non-set hydrolised dye in raffinate.
The inventive method is simple, easy to implement.Adopt the inventive method to carry out post processing, be reduced to two roads by six traditional procedures.Front and back consume steam 15kg altogether, and overall process is consuming time is about 60min, water consumption 2000kg.And traditional handicraft must consume steam 45kg, 100min consuming time, water consumption 5000kg.The present invention changes dye fixing and the traditional handicraft scheme of two-step method of soaping, and after dye fixing completes, directly adds compound oxidizing soaping agent, utilizes 80 degree of temperature water with bath directly to soap.Dye liquor does not need discharge, make use of the heat energy in raffinate.Use compound oxidizing soaping agent of the present invention, non-set dyestuff after soaping in working solution is decomposed, chroma in waste water significantly reduces, COD value reduces greatly, reduce washing times and water consumption, the sewage of discharge is substantially colourless, reach save time, water-saving, reduction enterprise production cost and alleviate the object of environmental pollution.
The present invention is without accompanying drawing
Detailed description of the invention
Embodiment 1
Knitted cloth dyes: get raw material cloth 100kg, and equipment adopts overflow dyeing machine.Bath raio is 1 to 10.Water consumption is 1000kg.Fuel is the purplish blue G of REACTIVE DYES, and consumption is 3.5 kilograms.The temperature of dye liquor is 85 degree.The fixation time is 20 minutes.Add acetic acid 5 kilograms after dyeing terminates and neutralisation treatment is carried out to dye liquor, operate and in dye liquor, directly add this soaping agent 2 kilograms after 15 minutes.From being heated to water temperature 80 degree of needs 5 minutes.Arrival keeps 15 minutes after needing temperature.Then overflow washing process is carried out to stained clot-h.80 degree of hot water wash are carried out in pending rear discharge opeing.Keep running 15 minutes.Front and back consume steam 15kg altogether, overall process 60min consuming time, water consumption 2000kg.
Embodiment 2
Cheese dyeing: get cheese dyeing weight 100 kilograms, equipment is yarn package dyeing machine.Bath raio is 1:5.Water consumption is 500 kilograms, and REACTIVE DYES is large red 3G, and consumption is 2.8 kilograms.The temperature of dye liquor is 80 degree, and the fixation time is 20 minutes.After dyeing terminates.Dye liquor adds 2.5 kilograms of acetic acid in advance, operates after 15 minutes, is warming up to 40 degree; Add soaping agent 1.2 kilograms subsequently, progressively insert in dyeing machine and be warming up to 85 degree.Water temperature 85 degree of needs 5 minutes are heated to from 40 degree.Arrival keeps 15 minutes after needing temperature.Cycle operation, carries out overflow washing process to cheese.Pending rear discharge opeing, then carries out 80 degree of hot water wash.Keep running 15 minutes.Front and back consume steam 7.5kg altogether, overall process 55min consuming time, water consumption 1000kg.
Claims (1)
1. utilize dye fixing fluid residual heat to remove a method for REACTIVE DYES loose colour, comprise dyeing, soap, hot water wash operation, it is characterized in that;
Combined oxidation type soaping agent technical formula
By above-mentioned material mixing and stirring, namely become compound soaping agent
To soap technique
In dye liquor, directly add combined oxidation type soaping agent after neutralisation treatment, the addition of soaping agent is the 40-50% of dye dosage, then is warming up to 80 degree, arrives after needing temperature and keeps 15 minutes, cycle operation,
Hot water wash
After soaping, overflow washing process is carried out to stained clot-h, after process, dye liquor is drained, then carry out 80 degree of hot water wash, keep running 15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400926.5A CN103498352B (en) | 2013-08-28 | 2013-08-28 | Method for removing unfixed reactive dye by using waste heat of dye fixing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400926.5A CN103498352B (en) | 2013-08-28 | 2013-08-28 | Method for removing unfixed reactive dye by using waste heat of dye fixing liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103498352A CN103498352A (en) | 2014-01-08 |
| CN103498352B true CN103498352B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310400926.5A Expired - Fee Related CN103498352B (en) | 2013-08-28 | 2013-08-28 | Method for removing unfixed reactive dye by using waste heat of dye fixing liquid |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667173B (en) * | 2018-12-26 | 2019-12-17 | 珠海华大浩宏化工有限公司 | Low-temperature soaping agent for cotton knitted fabric |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131185A (en) * | 1995-12-20 | 1996-09-18 | 北京洛娃新型化工材料技术开发有限公司 | Making bleaching compound soap power containing oxygen |
| WO1999034054A1 (en) * | 1997-12-23 | 1999-07-08 | Novo Nordisk A/S | Process for removal of excess dye from printed or dyed fabric or yarn |
| CN101168928A (en) * | 2007-08-20 | 2008-04-30 | 罗海航 | Reactive dyestuff dyeing and fixing technique and printing and dyeing auxiliary agent used for the same |
| CN102115975A (en) * | 2010-11-25 | 2011-07-06 | 浙江嘉名染整有限公司 | Dyeing and finishing technology for Hismer blended fabric |
| CN103088667A (en) * | 2013-02-07 | 2013-05-08 | 浙江蓝天海纺织服饰科技有限公司 | National flag red dyeing process |
-
2013
- 2013-08-28 CN CN201310400926.5A patent/CN103498352B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131185A (en) * | 1995-12-20 | 1996-09-18 | 北京洛娃新型化工材料技术开发有限公司 | Making bleaching compound soap power containing oxygen |
| WO1999034054A1 (en) * | 1997-12-23 | 1999-07-08 | Novo Nordisk A/S | Process for removal of excess dye from printed or dyed fabric or yarn |
| CN101168928A (en) * | 2007-08-20 | 2008-04-30 | 罗海航 | Reactive dyestuff dyeing and fixing technique and printing and dyeing auxiliary agent used for the same |
| CN102115975A (en) * | 2010-11-25 | 2011-07-06 | 浙江嘉名染整有限公司 | Dyeing and finishing technology for Hismer blended fabric |
| CN103088667A (en) * | 2013-02-07 | 2013-05-08 | 浙江蓝天海纺织服饰科技有限公司 | National flag red dyeing process |
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| CN103498352A (en) | 2014-01-08 |
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Granted publication date: 20150715 Termination date: 20200828 |