CN115787323A - Low ammonia nitrogen printing process - Google Patents
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- CN115787323A CN115787323A CN202211558740.8A CN202211558740A CN115787323A CN 115787323 A CN115787323 A CN 115787323A CN 202211558740 A CN202211558740 A CN 202211558740A CN 115787323 A CN115787323 A CN 115787323A
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- printing
- ammonia nitrogen
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- paste
- low ammonia
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- 238000007639 printing Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 25
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 18
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000004202 carbamide Substances 0.000 claims abstract description 34
- 238000001035 drying Methods 0.000 claims abstract description 24
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 17
- 238000004043 dyeing Methods 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 238000010025 steaming Methods 0.000 claims abstract description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 150000003839 salts Chemical class 0.000 claims description 10
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 10
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 6
- NDTSRXAMMQDVSW-UHFFFAOYSA-N benzthiazide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(S(N2)(=O)=O)=C1N=C2CSCC1=CC=CC=C1 NDTSRXAMMQDVSW-UHFFFAOYSA-N 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 39
- 239000000203 mixture Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 239000000975 dye Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 241001474374 Blennius Species 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000985 reactive dye Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241001255907 Tonica Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 101150084884 spd2 gene Proteins 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention relates to the field of fabric printing and dyeing auxiliaries, and particularly provides a low ammonia nitrogen printing process which comprises the following steps: preparing printing paste, printing, drying, steaming, washing and drying, wherein in the step of preparing the printing paste, the wax printing imitating lifting agent S1 is used for partially replacing urea. The wax printing imitating improver S1 can absorb moisture, preserve moisture, promote dyeing and assist dissolving on the premise of not influencing the printing effect, reduce the content of total nitrogen in sewage, greatly reduce the treatment pressure of printing and dyeing sewage, and has practicability in printing production application.
Description
Technical Field
The invention relates to the technical field of fabric printing and dyeing, in particular to a low ammonia nitrogen printing process.
Background
Reactive dyes are the main dyes for dyeing and printing fiber fabrics, and in order to avoid the problem of dull color on the surface of the fabric in the production process, a large amount of urea needs to be added into color paste to assist the dye dissolution and fiber swelling. In addition, in order to improve the dye uptake of reactive dyes and enhance the color in production, a large amount of urea is used for padding before printing.
The use of large amounts of urea not only increases the production cost, but also increases the pollution degree of the waste water. After being discharged into the sewage, urea is decomposed into carbon dioxide and nitrogen-containing compounds, which cause the content of ammonia nitrogen and total nitrogen in the sewage to increase. With the increasing awareness of environmental protection, research on methods and alternatives for reducing the amount of urea is urgent.
Disclosure of Invention
Aiming at the technical problem that the content of ammonia nitrogen in wastewater is high due to the fact that a large amount of urea is used in a printing process in the prior art, the invention provides a low ammonia nitrogen printing process, which mainly utilizes a wax print imitating promoting agent to reduce or replace the using amount of urea.
The technical scheme of the invention is as follows:
a low ammonia nitrogen printing process comprises the following steps: preparing printing paste, printing, drying, evaporating, washing and drying, wherein in the step of preparing the printing paste, the imitation wax printing lifting agent S1 is used for partially replacing urea, and the imitation wax printing lifting agent also plays roles in absorbing moisture, preserving moisture, promoting dyeing and assisting dissolving.
Further, the step of configuring the printing paste comprises the following steps:
weighing 0.1-13 parts by weight of dye, 1 part by weight of anti-dyeing salt S-A,1-30 parts by weight of urese:Sup>A, 0.1-10 parts by weight of wax printing simulating lifting agent and 10-50 parts by weight of water, stirring for 5-20min to dissolve, then adding 1-5 parts by weight of sodium bicarbonate and 10-50 parts by weight of printing paste, stirring for 5-20min, and fully swelling to form paste.
Further, the concentration of the printing paste is 4.5wt%.
Further, the printing step is to convey the printing paste into a printing roller through a printing conveying pipeline for printing.
Further, the drying step is to convey the printed fabric into a drying chamber at 100-160 ℃ for drying for 1-10min.
Further, the steaming step is to convey the dried cloth sample to a steaming box with the temperature of 102-103 ℃ for steaming for 8-10min.
Further, the washing step is to sequentially carry out hot water washing at the temperature of more than 95 ℃, soaping at the temperature of more than 95 ℃, hot water washing at the temperature of more than 95 ℃ for 8 grids and warm water washing at the temperature of 80-90 ℃ on the steamed printed fabric until no loose color exists in the liquid after washing, wherein 2-10g/L soaping agent is added in the soaping.
Further, the drying step is to carry out drying on the washed fabric by a drying cylinder again.
The invention has the beneficial effects that: the wax printing imitating improver can replace part of urea required by a printing process on the premise of not influencing the printing effect, reduce the content of total nitrogen and ammonia nitrogen in sewage, greatly reduce the treatment pressure of printing and dyeing sewage, and has practicability in printing production application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The stain-resistant salt S-A used in the following examples was obtained from the coastal morning light chemical company, inc., urese:Sup>A from northeast light chemical company, inc., wax-like print improver S1 from Suzhou Lisheng chemical company, inc., sodium bicarbonate from Zou Pingxiang Rich chemical company, inc., and print paste from Qingdao Mingyue algae group, inc.
Example 1
The wax printing imitating promoter is used for replacing urea to perform printing, and the process steps are as follows:
preparing printing paste: firstly weighing the dye, the anti-dyeing salt S-A, the urese:Sup>A, the wax printing simulating improver S1 and warm water at about 60 ℃, stirring for 15min to dissolve the materials, then adding the sodium bicarbonate and the printing paste with the concentration of 4.5%, stirring for 20min, and fully swelling to form paste.
Meanwhile, the printing paste compositions of comparative example 1 and comparative example 2 without the imitation wax printing promoting agent S1 are set as shown in the following table 1.
TABLE 1 printing paste composition (unit: wt%) of example 1 and comparative examples 1-2
| Composition (I) | Example 1 | Comparative example 1 | Comparative example 2 |
| Active red SPD | 2 | 2 | 2 |
| Active blue FPPH | 6.5 | 6.5 | 6.5 |
| Active ash SPEH | 4.5 | 4.5 | 4.5 |
| Urea | 25 | 30 | 25 |
| Sodium bicarbonate | 3 | 3 | 3 |
| Stain blocking salt S-A | 1 | 1 | 1 |
| Wax print imitating improver S1 | 1.2 | 0 | 0 |
| Printing paste | 30 | 30 | 30 |
| Warm water | 26.8 | 25 | 28 |
Printing: and conveying the printing paste into a printing roller through a printing conveying pipeline for printing.
Drying: and conveying the printed fabric into a drying chamber at 130 ℃ for drying for 5min.
And (3) steaming: and conveying the dried cloth sample into a steam box at 102 ℃ for steaming for 9min.
Washing with water: and (3) washing the steamed printed fabric with hot water of more than 95 ℃, soaping at more than 95 ℃, washing with hot water of more than 95 ℃ for 8 grids, and washing with warm water of 85 ℃ in sequence until no loose color exists in the liquid after washing, wherein 6g/L soaping agent is added in the soaping.
And (3) drying: and drying the washed fabric by using a drying cylinder again.
The printed products obtained in example 1 and comparative examples 1 to 2 were subjected to color measurement using a DataColor color meter, and the results are shown in table 2 below.
TABLE 2 color measurement data for example 1 and comparative examples 1-2
| Item | CIE DL | CIE Da | CIE Db | CIE DC | CIE DH | CIE DE | CMC DE | All in weight portion |
| Example 1 | 0.23 | -0.04 | 0.33 | -0.33 | 0.05 | 0.41 | 0.50 | 97.16 |
| Comparative example 1 | 0.40 | -0.39 | 0.13 | -0.19 | -0.36 | 0.57 | 0.68 | 97.7 |
| Comparative example 2 | 0.45 | -0.07 | 0.44 | -0.51 | 0.23 | 0.51 | 0.69 | 93.2 |
As can be seen from table 2, the color measurement data for the print of example 1 is not very different from the color measurement data for comparative example 1. The result shows that the mass fraction of the urea is reduced from 30% to 25% by adding a small amount of urea substitute, and the printing effect of the cloth cover is not influenced.
Examples 2 to 4
The printing processes of examples 2 to 4 differ from example 1 in the composition of the printing pastes.
TABLE 3 printing pastes of examples 2-4 (unit: wt%)
| Composition (I) | Example 2 | Example 3 | Example 4 |
| Blue SPEHN | 3 | 3 | 3 |
| Yellow P6GSH | 0.28 | 0.28 | 0.28 |
| Urea | 5 | 5 | 5 |
| Sodium bicarbonate | 3 | 3 | 3 |
| Anti-dyeing salt | 1 | 1 | 1 |
| Seaweed paste | 40 | 40 | 40 |
| Warm water | 46.72 | 44.72 | 42.72 |
| Wax print imitating improver S1 | 1 | 3 | 5 |
Comparative example 3
The printing process of the comparative example 3 is different from the printing processes of the examples 2 to 4 in that the wax-like printing promoting agent S1 is not used in printing color paste, and the dosage of urea is different.
The printing paste of comparative example 3 comprises: blue SPEHN 3wt%, yellow P6GSH 0.28wt%, urea 20wt%, sodium bicarbonate 3wt%, dye-imitating salt S-A1wt%, printing paste 35wt% and warm water 37.72wt%.
Comparative examples 4 to 6
The printing process of comparative examples 4 to 6 differs from that of examples 2 to 4 in that urea substitute LT-27 (Zibobiot Bio-enzyme Co., ltd.) is used instead of the analogous wax printing booster S1.
TABLE 4 printing pastes for comparative examples 4 to 6 (unit: wt%)
| Composition (I) | Comparative example 4 | Comparative example 5 | Comparative example 6 |
| Blue SPEHN | 3 | 3 | 3 |
| Yellow P6GSH | 0.28 | 0.28 | 0.28 |
| Urea | 5 | 5 | 5 |
| Sodium bicarbonate | 3 | 3 | 3 |
| Anti-dyeing salt | 1 | 1 | 1 |
| Seaweed paste | 40 | 40 | 40 |
| Warm water | 46.72 | 44.72 | 42.72 |
| Urea substitute LT-27 | 1 | 3 | 5 |
Comparative examples 7 to 9
The printing processes of comparative examples 7-9 differ from examples 2-4 in that subu-5 (Hainan, shaoxing, ohio) was used instead of the simulated wax-print booster S1.
TABLE 5 printing pastes for comparative examples 7 to 9 (unit: wt%)
| Composition (I) | Comparative example 7 | Comparative example 8 | Comparative example 9 |
| Blue SPEHN | 3 | 3 | 3 |
| Yellow P6GSH | 0.28 | 0.28 | 0.28 |
| Urea | 5 | 5 | 5 |
| Sodium bicarbonate | 3 | 3 | 3 |
| Anti-dyeing salt | 1 | 1 | 1 |
| Seaweed paste | 40 | 40 | 40 |
| Warm water | 46.72 | 44.72 | 42.72 |
| Reactive printing urea substitute subu-5 | 1 | 3 | 5 |
Comparative examples 10 to 12
The printing processes of comparative examples 10-12 differ from examples 2-4 in that the simulated wax-print booster S1 was replaced with an activated printing urea replacement of subu-10 (hoechuan algae, inc.).
TABLE 6 printing pastes for comparative examples 10 to 12 (unit: wt%)
Comparative examples 13 to 15
The printing process of comparative examples 13 to 15 differs from that of examples 2 to 4 in that a nitrogen-free urea is used instead of the auxiliary UR (tonica chemical) instead of the imitation wax print booster S1.
TABLE 7 printing pastes for comparative examples 13 to 15 (unit: wt%)
| Composition (I) | Comparative example 13 | Comparative example 14 | Comparative example 15 |
| Blue SPEHN | 3 | 3 | 3 |
| Yellow P6GSH | 0.28 | 0.28 | 0.28 |
| Urea | 5 | 5 | 5 |
| Sodium bicarbonate | 3 | 3 | 3 |
| Anti-dyeing salt | 1 | 1 | 1 |
| Seaweed paste | 40 | 40 | 40 |
| Warm water | 46.72 | 44.72 | 42.72 |
| Nitrogen-free urea substitute auxiliary UR | 1 | 3 | 5 |
The printed product of comparative example 3 was used as a standard sample, and the K/S value of the standard sample was 15.2330. The printed products obtained in examples 2 to 4 and comparative examples 4 to 15 were subjected to color measurement using a DataColor color meter, and the results are shown in Table 2 below.
TABLE 8 color measurement data for examples 2-4 and comparative examples 4-15
It can be seen from table 8 that the shade, brilliance, and depth of the cloth of each example and comparative example are greatly changed, the comprehensive cloth of example 2 has the best effect, is closest to the standard sample, and the shade of the cloth is closest to the standard sample requirement.
In order to further accurately determine the ammonia nitrogen content of urea and urea in water for the urea substitutes used in the examples and comparative examples, the total nitrogen content in a 1% aqueous solution was tested according to HJ535-2009, with the specific test results shown in table 9.
TABLE 9 Total Nitrogen content of the analogous wax print improver S1 and Urea in 1% aqueous solution
| Item | 1% Total Nitrogen (ppm)) |
| Urea | 1528 |
| Wax print imitating improver S1 | 120.3 |
As can be seen from Table 9, the total nitrogen content of the wax-like print improver S1 is 1/12 of that of urea, so that the urea dosage can be greatly reduced, the indexes such as the total nitrogen of sewage and the like are reduced, the sewage treatment pressure is reduced, and the direction is indicated for the green transformation of the dyeing and finishing industry.
Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention.
Claims (8)
1. A low ammonia nitrogen printing process is characterized by comprising the following steps: preparing printing paste, printing, drying, steaming, washing and drying, wherein in the step of preparing the printing paste, the wax printing imitating lifting agent S1 is used for partially replacing urea.
2. The low ammonia nitrogen printing process according to claim 1, wherein the step of configuring printing paste comprises the following steps:
weighing 0.1-13 parts by weight of dye, 1 part by weight of anti-dyeing salt S-A,1-30 parts by weight of urese:Sup>A, 0.1-10 parts by weight of wax printing simulating lifting agent and 10-50 parts by weight of water, stirring for 5-20min to dissolve, then adding 1-5 parts by weight of sodium bicarbonate and 10-50 parts by weight of printing paste, stirring for 5-20min, and fully swelling to form paste.
3. The low ammonia nitrogen printing process of claim 2, wherein the printing paste has a concentration of 4.5wt%.
4. The low ammonia nitrogen printing process according to claim 1, wherein the printing step is to convey the printing paste into a printing roller through a printing conveying pipeline for printing.
5. The low ammonia nitrogen printing process according to claim 1, wherein the drying step is to convey the printed fabric into a drying chamber at 100-160 ℃ for drying for 1-10min.
6. The low ammonia nitrogen printing process according to claim 1, characterized in that the steaming step is to convey the dried fabric sample to a steam box at 102-103 ℃ for steaming for 8-10min.
7. The low ammonia nitrogen printing process according to claim 1, wherein the washing step is to wash the steamed printed fabric with hot water at a temperature of more than 95 ℃, soaping at a temperature of more than 95 ℃, washing with hot water at a temperature of more than 95 ℃ for 8 grids, and washing with warm water at a temperature of 80-90 ℃ in sequence until no floating color exists in the liquid after washing, wherein 2-10g/L soaping agent is added in the soaping.
8. The low ammonia nitrogen printing process according to claim 1, wherein the drying step is to perform drying cylinder drying on the washed fabric again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211558740.8A CN115787323A (en) | 2022-12-06 | 2022-12-06 | Low ammonia nitrogen printing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211558740.8A CN115787323A (en) | 2022-12-06 | 2022-12-06 | Low ammonia nitrogen printing process |
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| CN115787323A true CN115787323A (en) | 2023-03-14 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433776A (en) * | 2011-09-09 | 2012-05-02 | 浙江理工大学 | Method for preparing environment-friendly natural fiber printing paste |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433776A (en) * | 2011-09-09 | 2012-05-02 | 浙江理工大学 | Method for preparing environment-friendly natural fiber printing paste |
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