CN116731552A - Improved water-based ink cleaning agent and preparation method thereof - Google Patents
Improved water-based ink cleaning agent and preparation method thereof Download PDFInfo
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- CN116731552A CN116731552A CN202310936861.XA CN202310936861A CN116731552A CN 116731552 A CN116731552 A CN 116731552A CN 202310936861 A CN202310936861 A CN 202310936861A CN 116731552 A CN116731552 A CN 116731552A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000004094 surface-active agent Substances 0.000 claims abstract description 54
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000004064 cosurfactant Substances 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 28
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 22
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 22
- 239000012752 auxiliary agent Substances 0.000 claims description 21
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 13
- 239000011780 sodium chloride Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 7
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims description 7
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 7
- 229920000053 polysorbate 80 Polymers 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 abstract description 41
- 230000000694 effects Effects 0.000 abstract description 16
- 239000002904 solvent Substances 0.000 abstract description 15
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000005530 etching Methods 0.000 abstract 1
- 239000003945 anionic surfactant Substances 0.000 description 5
- 238000007127 saponification reaction Methods 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- -1 polyphenylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/04—Chemical paint or ink removers with surface-active agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/005—Chemical paint or ink removers containing organic solvents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The invention discloses an improved water-based ink cleaning agent and a preparation method thereof, wherein the cleaning agent is prepared from the following raw materials in parts by weight: 4-7 parts of surfactant, 3-5 parts of modifying additive, 2-6 parts of builder, 5-8 parts of anti-deposition agent and the balance of water; the surfactant comprises a main surfactant and a cosurfactant; the invention relates to the technical field of water-based ink cleaning agents. The improved water-based ink cleaning agent and the preparation method thereof are realized by adding AES and AEO in a certain proportion 7 AEO (AEO) 9 And by carrying out a plurality of groups of experiments, it is shown that when the addition amount of AES is 7 percent, AEO 7 The addition amount of (2) was 1% and AEO 9 When the addition amount of the water-based ink cleaning agent is 2%, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect; in the technical scheme, the solvent is water and ethanol, the raw materials and the solvent are green, environment-friendly and pollution-free, and the prepared improved water-based ink cleaning agent is high in stability and almost free from corrosion to equipmentAnd (5) etching.
Description
Technical Field
The invention relates to the technical field of water-based ink cleaning agents, in particular to an improved water-based ink cleaning agent and a preparation method thereof.
Background
The traditional ink cleaning agent is generally prepared by using gasoline, kerosene, aromatic hydrocarbon and the like as main solvents, but the solvents have different degrees of volatility and toxicity, and cause certain harm to human bodies. In order to solve the harm of volatile organic solvents (Voc) to the environment and human body, researchers have studied mixed solvent type, emulsion, microemulsion and water-based ink cleaners before and after, and the most studied at present are water-based ink cleaners.
Referring to a water-based ink cleaning agent and a cleaning process (bulletin number: CN 113801514A) of Chinese patent, the water-based ink cleaning agent comprises the following raw materials in percentage by mass: 1 part of triethanolamine, 1 part of benzotriazole, 2 parts of urea, 3 parts of sodium carbonate, 808-15 parts of tween-15 parts of ethanol, 8-15 parts of mixed cleaning catalyst formed by uniformly dispersing nano ferric oxide in polyphenylene, and 100 parts of deionized water; the mixed cleaning catalyst consisting of nano ferric oxide and polyphenylene is doped in the cleaning formula, and under the irradiation of ultraviolet light, the mixed cleaning catalyst is excited into six electron-air pairs by light, and ink molecules adsorbed on the surface of a test piece receive photo-generated electron-hole pairs and undergo oxidation-reduction reaction, so that toxic and colored ink substances are degraded into non-toxic or less toxic substances, and the toxic substances are dissolved in a surfactant under the action of ultrasonic waves, so that the cleaning force of the cleaned ink test piece is more than 99%, and the corrosion amount is less than 0.2 mg; referring to Chinese patent, an anti-corrosion environment-friendly water-based ink cleaning agent with good cleaning effect and a preparation method thereof (bulletin number: CN 108546450A), the environment-friendly water-based cleaning agent is prepared from the following components in percentage by mass: 5% -8% of a surfactant; 2% -5% of a builder; 3% -5% of solubilizer; 1% -3% of chelating agent; 0.5% -2% of anticorrosive agent; the balance of water; the environment-friendly water-based cleaning agent is safe to use, and can clean printing equipment, printing plates, printing masters, ink rollers and blankets. However, certain harmful substances are generated in the preparation process of the water-based cleaning agent, so that the environment is damaged, or the cleaning rate of the prepared water-based cleaning agent is low, so that the cleaning effect is poor; therefore, the invention provides an improved water-based ink cleaning agent and a preparation method thereof, so as to solve the problems.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an improved water-based ink cleaning agent and a preparation method thereof, and solves the problems mentioned in the background art.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: an improved water-based ink cleaning agent is prepared from the following raw materials in parts by weight: 4-7 parts of surfactant, 3-5 parts of modifying additive, 2-6 parts of builder, 5-8 parts of anti-deposition agent and the balance of water.
Preferably, the improved water-based ink cleaning agent is prepared from the following raw materials in percentage by mass: 5.5 parts of surfactant, 4 parts of modifying additive, 4 parts of builder, 6.5 parts of anti-deposition agent and the balance of water.
Preferably, the surfactant includes a primary surfactant and a cosurfactant.
Preferably, the main surface active agent is AES, and the auxiliary surface active agent is AEO 9 And AEO 7 Wherein, according to the mass percent: AES is 6-8%, AEO 7 1 to 2 percent of AEO 9 1 to 2 percent. The optimal test conditions are as follows: 7% AES, 1% AEO 7 And 2% AEO 9 At this time, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect.
Preferably, the builder is an inorganic salt, and the inorganic salt is sodium chloride. By adopting sodium chloride, after inorganic salt and anionic surfactant are mixed, the polarity of the surfactant is reduced due to ionization of the inorganic salt, so that the surface activity is improved, and the cleaning efficiency of the cleaning agent is improved.
Preferably, the specific preparation steps of the modifying auxiliary agent are as follows:
(1) Mixing water and ethanol, and heating to 80 ℃ in a water bath;
(2) Adding tween-80 and dodecyl dimethyl betaine while stirring until the materials are uniformly mixed;
(3) And adding anhydrous sodium carbonate into the uniformly mixed solution, and continuously stirring to prepare the modified auxiliary agent.
Preferably, the stirring rotation speed in the step (2) is 1100-1300 r/min, and the stirring time is 15-25 min.
Preferably, the anti-deposition agent is one or a mixture of two of triethanolamine and acrylic acid-maleic anhydride copolymer in any proportion.
The preparation method of the improved water-based ink cleaning agent specifically comprises the following steps: the components are weighed according to the proportion, the surfactant is firstly added into water at the temperature of 25-30 ℃ and fully stirred to be completely dissolved, then the modifying auxiliary agent, the builder and the anti-deposition agent are added into the solution and continuously stirred for 20-30 min, and after the solution is completely dissolved, the water-based ink cleaning agent is obtained after standing for 12-18 h.
(III) beneficial effects
The invention provides an improved water-based ink cleaning agent and a preparation method thereof. Compared with the prior art, the method has the following beneficial effects:
(1) According to the improved water-based ink cleaning agent and the preparation method, the pH value of the cleaning agent is adjusted and stabilized by adding anhydrous sodium carbonate, meanwhile, the water-based ink cleaning agent can be mixed with a surfactant to reduce the surface tension of a solution, the binding force of ink and printing equipment is reduced through saponification effect, and the cleaning capability of the cleaning agent is improved.
(2) The improved water-based ink cleaning agent and the preparation method thereof are realized by adding AES and AEO in a certain proportion 7 AEO (AEO) 9 And by carrying out a plurality of groups of experiments, it is shown that when the addition amount of AES is 7 percent, AEO 7 The addition amount of (2) was 1% and AEO 9 When the addition amount of the water-based ink cleaning agent is 2%, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect; in the technical scheme, the solvent is water and ethanol, and the raw materials and the solvent are green, environment-friendly and pollution-free, and the prepared improved water-based ink cleaning agent is high in stability and almost free from corrosion to equipment.
Drawings
FIG. 1 is a graph of orthogonal test results of an improved water-based ink cleaner and a component-mixed surfactant provided by the method of preparation of the present invention;
FIG. 2 is a schematic diagram showing the effect of the mass ratio of dodecyl dimethyl betaine to Tween-80 on the detergency of an improved water-based ink cleaner and a preparation method thereof.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the embodiments of the present invention provide four technical schemes:
example 1:
an improved water-based ink cleaning agent is prepared from the following raw materials in parts by weight: 4 parts of surfactant, 3 parts of modifying auxiliary agent, 2 parts of builder, 5 parts of anti-deposition agent and the balance of water.
In an embodiment of the invention, the surfactant includes a primary surfactant and a cosurfactant.
As a further technical scheme, the main surface active agent is AES, and the auxiliary surface active agent is AEO 9 And AEO 7 Wherein, according to the mass percent: AES 6%, AEO 7 1% AEO 9 1%. As can be seen from fig. 1, the optimal test conditions are: 7% AES, 1% AEO 7 And 2% AEO 9 At this time, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect.
In the embodiment of the invention, the builder is inorganic salt, and the inorganic salt is sodium chloride. By adopting sodium chloride, after inorganic salt and anionic surfactant are mixed, the polarity of the surfactant is reduced due to ionization of the inorganic salt, so that the surface activity is improved, and the cleaning efficiency of the cleaning agent is improved.
In the embodiment of the invention, the specific preparation steps of the modified auxiliary agent are as follows:
(1) Mixing water and ethanol, and heating to 80 ℃ in a water bath;
(2) Adding tween-80 and dodecyl dimethyl betaine while stirring until the materials are uniformly mixed; wherein the stirring speed is 1100r/min, and the stirring time is 15min;
(3) And adding anhydrous sodium carbonate into the uniformly mixed solution, and continuously stirring to prepare the modified auxiliary agent. The pH value of the cleaning agent is regulated and stabilized by adding anhydrous sodium carbonate, meanwhile, the water-based ink can be mixed with a surfactant to reduce the tension of the surface of the solution, the binding force between the ink and printing equipment is reduced by saponification, and the cleaning capability of the cleaning agent is improved.
In the embodiment of the invention, the anti-deposition agent is one or a mixture of two of triethanolamine and acrylic acid-maleic anhydride copolymer in any proportion. By adding the anti-deposition agent, the stability of the ink cleaning agent is ensured, so that the ink cleaning agent has the same cleaning efficiency in a high-low temperature environment, and the cleaned ink is effectively prevented from being adsorbed and deposited on the surface of an object again. Meanwhile, the anti-deposition agent has very good affinity to the ink, is combined with the ink in a wrapping mode, and enables the ink to be uniformly dispersed in the aqueous solution, so that the ink is prevented from being in contact with the surface of an object in a re-adsorption mode, the stability of an ink cleaning agent can be effectively ensured, and meanwhile, the cleaning efficiency of the cleaning agent is improved to a certain extent.
The preparation method of the improved water-based ink cleaning agent specifically comprises the following steps: the components are weighed according to the proportion, the surfactant is firstly added into water at the temperature of 25 ℃ and is fully stirred to be fully dissolved, then the modifying auxiliary agent, the builder and the anti-deposition agent are added into the solution, the stirring is continued for 20-min, and after the dissolution is complete, the water-based ink cleaning agent is obtained after standing for 12 h.
In the technical scheme, the solvent is water and ethanol, and the cleaning agent is environment-friendly and pollution-free from raw materials to the solvent, and has a simple preparation process. The improved water-based ink cleaning agent prepared at the same time has strong stability and almost no corrosion to equipment.
Example 2:
an improved water-based ink cleaning agent is prepared from the following raw materials in parts by weight: 5.5 parts of surfactant, 4 parts of modifying additive, 4 parts of builder, 6.8 parts of anti-deposition agent and the balance of water.
In an embodiment of the invention, the surfactant includes a primary surfactant and a cosurfactant.
As a further technical scheme, the main surface active agent is AES, and the auxiliary surface active agent is AEO 9 And AEO 7 Wherein, according to the mass percent: AES 7%, AEO 7 1.5% AEO 9 1.5%. As can be seen from fig. 1, the optimal test conditions are: 7% AES, 1% AEO 7 And 2% AEO 9 At this time, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect.
In the embodiment of the invention, the builder is inorganic salt, and the inorganic salt is sodium chloride. By adopting sodium chloride, after inorganic salt and anionic surfactant are mixed, the polarity of the surfactant is reduced due to ionization of the inorganic salt, so that the surface activity is improved, and the cleaning efficiency of the cleaning agent is improved.
In the embodiment of the invention, the specific preparation steps of the modified auxiliary agent are as follows:
(1) Mixing water and ethanol, and heating to 80 ℃ in a water bath;
(2) Adding tween-80 and dodecyl dimethyl betaine while stirring until the materials are uniformly mixed; wherein the stirring rotation speed is 1200r/min, and the stirring time is 20min;
(3) And adding anhydrous sodium carbonate into the uniformly mixed solution, and continuously stirring to prepare the modified auxiliary agent. The pH value of the cleaning agent is regulated and stabilized by adding anhydrous sodium carbonate, meanwhile, the water-based ink can be mixed with a surfactant to reduce the tension of the surface of the solution, the binding force between the ink and printing equipment is reduced by saponification, and the cleaning capability of the cleaning agent is improved.
In the embodiment of the invention, the anti-deposition agent is one or a mixture of two of triethanolamine and acrylic acid-maleic anhydride copolymer in any proportion. By adding the anti-deposition agent, the stability of the ink cleaning agent is ensured, so that the ink cleaning agent has the same cleaning efficiency in a high-low temperature environment, and the cleaned ink is effectively prevented from being adsorbed and deposited on the surface of an object again. Meanwhile, the anti-deposition agent has very good affinity to the ink, is combined with the ink in a wrapping mode, and enables the ink to be uniformly dispersed in the aqueous solution, so that the ink is prevented from being in contact with the surface of an object in a re-adsorption mode, the stability of an ink cleaning agent can be effectively ensured, and meanwhile, the cleaning efficiency of the cleaning agent is improved to a certain extent.
The preparation method of the improved water-based ink cleaning agent specifically comprises the following steps: the components are weighed according to the proportion, the surfactant is firstly added into water at the temperature of 27 ℃ and is fully stirred to be fully dissolved, then the modifying auxiliary agent, the builder and the anti-deposition agent are added into the solution, the stirring is continued for 25min, and after the dissolution is complete, the water-based ink cleaning agent is obtained after standing for 15 h.
In the technical scheme, the solvent is water and ethanol, and the cleaning agent is environment-friendly and pollution-free from raw materials to the solvent, and has a simple preparation process. The improved water-based ink cleaning agent prepared at the same time has strong stability and almost no corrosion to equipment.
Example 3:
an improved water-based ink cleaning agent is prepared from the following raw materials in parts by weight: 7 parts of surfactant, 5 parts of modifying auxiliary agent, 6 parts of builder, 8 parts of anti-deposition agent and the balance of water.
In an embodiment of the invention, the surfactant includes a primary surfactant and a cosurfactant.
As a further technical scheme, the main surface active agent is AES, and the auxiliary surface active agent is AEO 9 And AEO 7 Wherein, according to the mass percent: AES is 8%, AEO 7 2%, AEO 9 2%. As can be seen from fig. 1, the optimal test conditions are: 7% AES, 1% AEO 7 And 2% AEO 9 At this time, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect.
In the embodiment of the invention, the builder is inorganic salt, and the inorganic salt is sodium chloride. By adopting sodium chloride, after inorganic salt and anionic surfactant are mixed, the polarity of the surfactant is reduced due to ionization of the inorganic salt, so that the surface activity is improved, and the cleaning efficiency of the cleaning agent is improved.
In the embodiment of the invention, the specific preparation steps of the modified auxiliary agent are as follows:
(1) Mixing water and ethanol, and heating to 80 ℃ in a water bath;
(2) Adding tween-80 and dodecyl dimethyl betaine while stirring until the materials are uniformly mixed; wherein the stirring speed is 1300r/min, and the stirring time is 25min;
(3) And adding anhydrous sodium carbonate into the uniformly mixed solution, and continuously stirring to prepare the modified auxiliary agent. The pH value of the cleaning agent is regulated and stabilized by adding anhydrous sodium carbonate, meanwhile, the water-based ink can be mixed with a surfactant to reduce the tension of the surface of the solution, the binding force between the ink and printing equipment is reduced by saponification, and the cleaning capability of the cleaning agent is improved.
In the embodiment of the invention, the anti-deposition agent is one or a mixture of two of triethanolamine and acrylic acid-maleic anhydride copolymer in any proportion. By adding the anti-deposition agent, the stability of the ink cleaning agent is ensured, so that the ink cleaning agent has the same cleaning efficiency in a high-low temperature environment, and the cleaned ink is effectively prevented from being adsorbed and deposited on the surface of an object again. Meanwhile, the anti-deposition agent has very good affinity to the ink, is combined with the ink in a wrapping mode, and enables the ink to be uniformly dispersed in the aqueous solution, so that the ink is prevented from being in contact with the surface of an object in a re-adsorption mode, the stability of an ink cleaning agent can be effectively ensured, and meanwhile, the cleaning efficiency of the cleaning agent is improved to a certain extent.
The preparation method of the improved water-based ink cleaning agent specifically comprises the following steps: the components are weighed according to the proportion, the surfactant is firstly added into water at the temperature of 30 ℃ and is fully stirred to be fully dissolved, then the modifying auxiliary agent, the builder and the anti-deposition agent are added into the solution, the stirring is continued for 30min, and after the dissolution is complete, the water-based ink cleaning agent is obtained after standing for 18 h.
In the technical scheme, the solvent is water and ethanol, and the cleaning agent is environment-friendly and pollution-free from raw materials to the solvent, and has a simple preparation process. The improved water-based ink cleaning agent prepared at the same time has strong stability and almost no corrosion to equipment.
Example 4:
an improved water-based ink cleaning agent is prepared from the following raw materials in parts by weight: 6 parts of surfactant, 4 parts of modifying auxiliary agent, 5 parts of builder, 7 parts of anti-deposition agent and the balance of water.
In an embodiment of the invention, the surfactant includes a primary surfactant and a cosurfactant.
As a further technical scheme, the main surface active agent is AES, and the auxiliary surface active agent is AEO 9 And AEO 7 Wherein, according to the mass percent: AES 7%, AEO 7 2%, AEO 9 2%. As can be seen from fig. 1, the optimal test conditions are: 7% AES, 1% AEO 7 And 2% AEO 9 At this time, the prepared improved water-based ink cleaning agent has the highest cleaning rate and the best cleaning effect.
In the embodiment of the invention, the builder is inorganic salt, and the inorganic salt is sodium chloride. By adopting sodium chloride, after inorganic salt and anionic surfactant are mixed, the polarity of the surfactant is reduced due to ionization of the inorganic salt, so that the surface activity is improved, and the cleaning efficiency of the cleaning agent is improved.
In the embodiment of the invention, the specific preparation steps of the modified auxiliary agent are as follows:
(1) Mixing water and ethanol, and heating to 80 ℃ in a water bath;
(2) Adding tween-80 and dodecyl dimethyl betaine while stirring until the materials are uniformly mixed; wherein the stirring rotation speed is 1250r/min, and the stirring time is 23min;
(3) And adding anhydrous sodium carbonate into the uniformly mixed solution, and continuously stirring to prepare the modified auxiliary agent. The pH value of the cleaning agent is regulated and stabilized by adding anhydrous sodium carbonate, meanwhile, the water-based ink can be mixed with a surfactant to reduce the tension of the surface of the solution, the binding force between the ink and printing equipment is reduced by saponification, and the cleaning capability of the cleaning agent is improved.
In the embodiment of the invention, the anti-deposition agent is one or a mixture of two of triethanolamine and acrylic acid-maleic anhydride copolymer in any proportion. By adding the anti-deposition agent, the stability of the ink cleaning agent is ensured, so that the ink cleaning agent has the same cleaning efficiency in a high-low temperature environment, and the cleaned ink is effectively prevented from being adsorbed and deposited on the surface of an object again. Meanwhile, the anti-deposition agent has very good affinity to the ink, is combined with the ink in a wrapping mode, and enables the ink to be uniformly dispersed in the aqueous solution, so that the ink is prevented from being in contact with the surface of an object in a re-adsorption mode, the stability of an ink cleaning agent can be effectively ensured, and meanwhile, the cleaning efficiency of the cleaning agent is improved to a certain extent.
The preparation method of the improved water-based ink cleaning agent specifically comprises the following steps: the components are weighed according to the proportion, the surfactant is firstly added into water at the temperature of 28 ℃ and is fully stirred to be fully dissolved, then the modifying auxiliary agent, the builder and the anti-deposition agent are added into the solution, the stirring is continued for 280 minutes, and after the dissolution is complete, the water-based ink cleaning agent is obtained after standing for 16 hours.
In the technical scheme, the solvent is water and ethanol, and the cleaning agent is environment-friendly and pollution-free from raw materials to the solvent, and has a simple preparation process. The improved water-based ink cleaning agent prepared at the same time has strong stability and almost no corrosion to equipment.
And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The improved water-based ink cleaning agent is characterized by being prepared from the following raw materials in parts by weight: 4-7 parts of surfactant, 3-5 parts of modifying additive, 2-6 parts of builder, 5-8 parts of anti-deposition agent and the balance of water.
2. The improved water-based ink cleaner according to claim 1, wherein: the improved water-based ink cleaning agent is prepared from the following raw materials in percentage by mass: 5.5 parts of surfactant, 4 parts of modifying additive, 4 parts of builder, 6.5 parts of anti-deposition agent and the balance of water.
3. The improved water-based ink cleaner according to claim 1, wherein: the surfactant includes a primary surfactant and a cosurfactant.
4. The improved water-based ink cleaner according to claim 2, wherein: the main surface active agent is AES, and the auxiliary surface active agent is AEO 9 And AEO 7 Wherein, according to the mass percent: AES is 6-8%, AEO 7 1 to 2 percent of AEO 9 1 to 2 percent.
5. The improved water-based ink cleaner according to claim 1, wherein: the builder is inorganic salt, and the inorganic salt is sodium chloride.
6. The improved water-based ink cleaner according to claim 1, wherein: the specific preparation steps of the modified auxiliary agent are as follows:
(1) Mixing water and ethanol, and heating to 80 ℃ in a water bath;
(2) Adding tween-80 and dodecyl dimethyl betaine while stirring until the materials are uniformly mixed;
(3) And adding anhydrous sodium carbonate into the uniformly mixed solution, and continuously stirring to prepare the modified auxiliary agent.
7. The improved water-based ink cleaner according to claim 5, wherein: the stirring rotating speed in the step (2) is 1100-1300 r/min, and the stirring time is 15-25 min.
8. The improved water-based ink cleaner according to claim 1, wherein: the anti-deposition agent is one or a mixture of two of triethanolamine and acrylic acid-maleic anhydride copolymer in any proportion.
9. A method for preparing the improved water-based ink cleaning agent as claimed in claim 1, which comprises the following steps: the components are weighed according to the proportion, the surfactant is firstly added into water at the temperature of 25-30 ℃ and fully stirred to be completely dissolved, then the modifying auxiliary agent, the builder and the anti-deposition agent are added into the solution and continuously stirred for 20-30 min, and after the solution is completely dissolved, the water-based ink cleaning agent is obtained after standing for 12-18 h.
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