CN104018309A - Method for recycling residual liquid of reactive dyes after dyeing - Google Patents
Method for recycling residual liquid of reactive dyes after dyeing Download PDFInfo
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- CN104018309A CN104018309A CN201410226660.1A CN201410226660A CN104018309A CN 104018309 A CN104018309 A CN 104018309A CN 201410226660 A CN201410226660 A CN 201410226660A CN 104018309 A CN104018309 A CN 104018309A
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Abstract
The invention relates to a method for recycling residual liquid of reactive dyes after dyeing, and belongs to the technical field of dyeing technology. The method comprises the following steps: performing first cylinder dyeing for a product in a dyeing cylinder by the reactive dyes; after the first cylinder dyeing is ended, transferring the residual dyeing liquid into another dyeing cylinder, supplying water to the dyeing cylinder to reach the dosage of the water during the first cylinder dyeing, supplying salt or sodium sulfate to reach the concentration during the first cylinder dyeing, supplying sodium carbonate with the PH value reaching the value during the first cylinder dyeing, supplying the reactive dyes to reach the dosage of the dyes during the first cylinder dyeing, raising the temperature to the same temperature during the first cylinder dyeing, and performing second cylinder dyeing with the same color and the same weight for the same product by using the same dyeing technology; after the second cylinder dyeing is ended, repeating the above steps to perform third cylinder dyeing with the same color and the same weight for the same product, and followed by analogy, recycling the residual liquid of the reactive dyes after dyeing. Besides, the volume of every dyeing cylinder is the same. By adoption of the method, the dosages of the reactive dyes, the salt or the sodium sulfate, and the sodium carbonate can be reduced, and the dosages of the water and steam can also be reduced.
Description
Technical field
The present invention relates to the method that residual dye liquor after a kind of reactive dyeing is back to dyeing, belong to Dyeing Technology field.
Background technology
While adopting REACTIVE DYES to dye to cotton or regenerated celulose fibre, particularly dark, use a large amount of salt or glauber salt and soda ash, salt or glauber salt are accelerant, soda ash is color-fixing agent, and these auxiliary agents substantially can not be consumed after dyeing, stay in the raffinate after dyeing as residuals, REACTIVE DYES has on the dyestuff of 70%-80% and dyes in fiber after dyeing, there is the dyestuff of 20%-30% to remain in the raffinate after dyeing, although there is part to be hydrolyzed, but there is part dyestuff to utilize, the existence of these residues has promoted the content of COD, can be along with sewage is discharged to Sewage Disposal, increase difficulty to sewage disposal, environment has been caused to pollution.
Summary of the invention
The object of this invention is to provide the method for residual liquid recycling after a kind of reactive dyeing, the method can be recycled the residual pin water after reactive dyeing, the enforcement of the method can reduce the consumption of REACTIVE DYES, salt or glauber salt, soda ash, can also reduce the consumption of water and steam, reduce the discharge of COD, alleviate the pressure of sewage disposal.
For achieving the above object, the technical solution adopted in the present invention is:
A method for residual liquid recycling after reactive dyeing, comprises the following steps: the product that REACTIVE DYES is opposite in dye vat carries out the first cylinder dyeing; The first cylinder dyeing finishes rear residual dye liquor to be transferred in another dye vat, and to this dye vat supplementing water the consumption to first cylinder when dyeing, concentration while supplementing salt or glauber salt to the first cylinder dyeing, pH value while supplementing soda ash to the first cylinder dyeing, the consumption of dyestuff while supplementing REACTIVE DYES to the first cylinder dyeing, be warmed up to the first cylinder same temperature of when dyeing, carry out the dyeing with the like product of weight with color of the second cylinder with same dyeing; The second cylinder dyeing finishes the rear step above that repeats and carries out the dyeing with the like product of weight with color of the 3rd cylinder, the like, recycle the raffinate after reactive dyeing; The volume of above-mentioned each dye vat is identical.The present invention, the preferred reuse of residual dye liquor after its reactive dyeing 4-5 time.
Described product is cotton or regenerated celulose fibre.
Described temperature is any one in 40 DEG C, 60 DEG C, 80 DEG C.
Described dyeing adopts constant temperature method, specifically comprises: under temperature constant state, and first salt adding or glauber salt running 10 minutes, add again soda ash running 10 minutes, slowly add again the REACTIVE DYES that priorization is good, add the REACTIVE DYES time to be controlled at 20 minutes, add rear insulation running and finish for 60 minutes.Dyeing adopts above-mentioned constant temperature method, be uniformity in order to keep each dyeing and dye the homochromatism of color.Therefore, when the present invention carries out the first cylinder dyeing, just adopt this constant temperature method to dye, when residual liquid recycling dyes in the back, add salt or glauber salt simultaneously, when adding soda ash and adding REACTIVE DYES, all adopt this constant temperature method to carry out.
Described REACTIVE DYES adopts first slow rear fast ratio addition method.
The method of residual liquid recycling after a kind of reactive dyeing of the present invention, has utilized residual salt or glauber salt on the one hand, has utilized soda ash; utilize the REACTIVE DYES of dying on not having, also reduced on the other hand the consumption of water and steam, reduced blowdown; alleviate the pressure of sewage disposal, protected environment.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is the curve synoptic diagram of constant temperature method dyeing in the present invention.
Detailed description of the invention
The method of residual liquid recycling after a kind of reactive dyeing of the present invention, comprises the following steps: the product that REACTIVE DYES is opposite in dye vat carries out the first cylinder dyeing; The first cylinder dyeing finishes rear residual dye liquor to be transferred in another dye vat, and to this dye vat supplementing water the consumption to first cylinder when dyeing, concentration while supplementing salt or glauber salt to the first cylinder dyeing, pH value while supplementing soda ash to the first cylinder dyeing, the consumption of dyestuff while supplementing REACTIVE DYES to the first cylinder dyeing, be warmed up to the first cylinder same temperature of when dyeing, carry out the dyeing with the like product of weight with color of the second cylinder with same dyeing; The second cylinder dyeing finishes the rear step above that repeats and carries out the dyeing with the like product of weight with color of the 3rd cylinder, the like, recycle the raffinate after reactive dyeing; The volume of above-mentioned each dye vat is identical.The present invention, the preferred reuse of residual dye liquor after its reactive dyeing 4-5 time.
The said goods is cotton or regenerated celulose fibre.
Said temperature is any one in 40 DEG C, 60 DEG C, 80 DEG C.
Above-mentioned dyeing adopts constant temperature method, specifically comprise: under temperature constant state, (temperature of constant temperature can be 40 DEG C, can be 60 DEG C, also can be 80 DEG C, specifically determine according to needs of production), first salt adding or glauber salt running 10 minutes, add again soda ash running 10 minutes, slowly add again the REACTIVE DYES that priorization is good, add the REACTIVE DYES time to be controlled at 20 minutes, add rear insulation running and finish for 60 minutes.Wherein, REACTIVE DYES preferably adopts first slow rear fast ratio addition method.Fig. 1 dyeing curve map during as constant temperature that is the present invention using 60 DEG C.
Dyeing adopts above-mentioned constant temperature method, be uniformity in order to keep each dyeing and dye the homochromatism of color.Therefore, when the present invention carries out the first cylinder dyeing, just adopt this constant temperature method to dye, when residual liquid recycling dyes in the back, add salt or glauber salt simultaneously, when adding soda ash and adding REACTIVE DYES, all adopt this constant temperature method to carry out.
The method of testing of Liquid Residue content of the present invention is as follows:
1. the mensuration of salt or glauber salt content
Salt or glauber salt are the accelerant of dying fiber on dyestuff, exist with ionic condition in dye liquor in the whole process of dyeing, anything does not react and consumes with other, in the time that raffinate repeats reuse after dyeing, still exist and work with the same amount of same state, so repeating to add when reuse the water correspondence of how many amounts, to add salt or the glauber salt of how many amounts just passable, such as the consumption of salt or glauber salt is 50 grams per liters, if add 100 premium on currency, as long as add so salt or glauber salt amount is 5000 grams.Salt or glauber salt consumption are with identical for the first time when keeping reuse, can densimeter measure its proportion numerical value and verify, when reuse, add after salt or glauber salt, as long as proportion numerical value is consistent, salt or the glauber salt concentration in dye liquor is just the same, and when dyeing, role is just the same.
2. the mensuration of soda ash and pH value
Soda ash is the color-fixing agent that dyes fiber in REACTIVE DYES, when residual liquid recycling, adding the amount of soda ash controls by measuring pH value, measure and record for the first time the pH value that dyeing adds dye liquor after soda ash, when residual liquid recycling, add soda ash consistent just passable to the pH value of dye liquor and the pH value of first record.
3. in residual pin water, can be back to the test of the REACTIVE DYES content of dyeing
Do sample test: in dyed bulk production product, get 10 grams of openpore samples, according to bulk production dye same bath raio and dyeing requirement, get residual dye liquor, not adding any other dyestuff and auxiliary agent dyes, dyeing finishes rear sample to be dried, compare with the first cylinder bulk production color, analyze by Computer color testing instrument a few percent that color that residual dye liquor dyes is the first cylinder bulk production color, if say 15% of the first cylinder bulk production color, as long as it is just passable to add so 85% dyestuff in the time utilizing for the second time raffinate dyeing, as long as each reuse dyeing all adds 85% all right below.
The present invention compared with prior art, has following outstanding advantages and good effect:
1. each saving REACTIVE DYES cost 10%-20%, if taking 15% utilization rate as example, manage so in human relations and repeat for N time can save REACTIVE DYES after reuse: REACTIVE DYES consumption for the first time × (Nth power of 1-85%).
2. if add water 10% at every turn, so each reuse can be saved salt or glauber salt 90%, and it is also 90% that soda ash is saved in each reuse.
3. water saving, reduction of discharging dirt, every reuse once can economize on water 90%, reduces blowdown 90% simultaneously, has saved water resource, has reduced sewage row pollution on the environment.
4. residual dye liquor has the temperature of 50 DEG C-60 DEG C, so dye liquor is warmed up to 60 DEG C of steam used and heating-up time while having reduced dyeing, both energy-conservation, has improved again production efficiency.
Above-described embodiment is only for the inventive concept of the present invention of explaining, but not restriction to rights protection of the present invention, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should fall into protection scope of the present invention.
Claims (5)
1. a method for residual liquid recycling after reactive dyeing, is characterized in that comprising the following steps: the product that REACTIVE DYES is opposite in dye vat carries out the first cylinder dyeing; The first cylinder dyeing finishes rear residual dye liquor to be transferred in another dye vat, and to this dye vat supplementing water the consumption to first cylinder when dyeing, concentration while supplementing salt or glauber salt to the first cylinder dyeing, pH value while supplementing soda ash to the first cylinder dyeing, the consumption of dyestuff while supplementing REACTIVE DYES to the first cylinder dyeing, be warmed up to the first cylinder same temperature of when dyeing, carry out the dyeing with the like product of weight with color of the second cylinder with same dyeing; The second cylinder dyeing finishes the rear step above that repeats and carries out the dyeing with the like product of weight with color of the 3rd cylinder, the like, recycle the raffinate after reactive dyeing; The volume of above-mentioned each dye vat is identical.
2. a kind of method of residual liquid recycling after reactive dyeing as claimed in claim 1, is characterized in that: described product is cotton or regenerated celulose fibre.
3. the method for residual liquid recycling after a kind of reactive dyeing as described in claims 1 or 2, is characterized in that: described temperature is any one in 40 DEG C, 60 DEG C, 80 DEG C.
4. a kind of method of residual liquid recycling after reactive dyeing as claimed in claim 3, it is characterized in that: described dyeing adopts constant temperature method, specifically comprise: under temperature constant state, first salt adding or glauber salt running 10 minutes, add again soda ash running 10 minutes, slowly add again the REACTIVE DYES that priorization is good, add the REACTIVE DYES time to be controlled at 20 minutes, add rear insulation running and finish for 60 minutes.
5. a kind of method of residual liquid recycling after reactive dyeing as claimed in claim 4, is characterized in that: described REACTIVE DYES adopt first slow after fast ratio addition method.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367907A (en) * | 2016-08-31 | 2017-02-01 | 浙江维艺实业股份有限公司 | Cooling water recycling process |
| CN106835573A (en) * | 2017-01-21 | 2017-06-13 | 海宁萃智智能机器人有限公司 | A kind of zero-emission HTHP dye vat |
| CN106906586A (en) * | 2017-01-21 | 2017-06-30 | 海宁萃智智能机器人有限公司 | A kind of comprehensive Water circulation dye vat based on Electromagnetic Heating |
| CN108755181A (en) * | 2018-04-04 | 2018-11-06 | 西安工程大学 | Cellulose fibre reactive dye low-salt original position mineralising colouring method |
| CN108797160A (en) * | 2018-06-20 | 2018-11-13 | 绍兴国周针织科技有限公司 | A kind of dyeing and printing process |
| CN110318268A (en) * | 2019-06-28 | 2019-10-11 | 中山胜丰针梳织染整厂有限公司 | A kind of reactive dyeing raffinate recycling method |
| CN112048926A (en) * | 2020-09-21 | 2020-12-08 | 鲁泰纺织股份有限公司 | Method for circularly dyeing by using dyed wastewater in yarn-dyed field |
| CN112226954A (en) * | 2020-09-29 | 2021-01-15 | 绍兴国周针织科技有限公司 | Reactive dye dyeing process for cheese |
| CN112482054A (en) * | 2020-12-15 | 2021-03-12 | 浙江灏宇科技有限公司 | Processing method for dyeing by using dyeing residual liquid of reactive dye |
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| CN103741526A (en) * | 2014-01-06 | 2014-04-23 | 四川省宜宾惠美线业有限责任公司 | Residual liquid dyeing process of cheese |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367907A (en) * | 2016-08-31 | 2017-02-01 | 浙江维艺实业股份有限公司 | Cooling water recycling process |
| CN106367907B (en) * | 2016-08-31 | 2018-05-01 | 浙江维艺实业股份有限公司 | Cool down water recovering process |
| CN106835573A (en) * | 2017-01-21 | 2017-06-13 | 海宁萃智智能机器人有限公司 | A kind of zero-emission HTHP dye vat |
| CN106906586A (en) * | 2017-01-21 | 2017-06-30 | 海宁萃智智能机器人有限公司 | A kind of comprehensive Water circulation dye vat based on Electromagnetic Heating |
| CN108755181A (en) * | 2018-04-04 | 2018-11-06 | 西安工程大学 | Cellulose fibre reactive dye low-salt original position mineralising colouring method |
| CN108797160A (en) * | 2018-06-20 | 2018-11-13 | 绍兴国周针织科技有限公司 | A kind of dyeing and printing process |
| CN110318268A (en) * | 2019-06-28 | 2019-10-11 | 中山胜丰针梳织染整厂有限公司 | A kind of reactive dyeing raffinate recycling method |
| CN112048926A (en) * | 2020-09-21 | 2020-12-08 | 鲁泰纺织股份有限公司 | Method for circularly dyeing by using dyed wastewater in yarn-dyed field |
| CN112226954A (en) * | 2020-09-29 | 2021-01-15 | 绍兴国周针织科技有限公司 | Reactive dye dyeing process for cheese |
| CN112482054A (en) * | 2020-12-15 | 2021-03-12 | 浙江灏宇科技有限公司 | Processing method for dyeing by using dyeing residual liquid of reactive dye |
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Application publication date: 20140903 |