CN112094529A - Processing method of flexo-printing environment-friendly tipping paper water-based ink - Google Patents
Processing method of flexo-printing environment-friendly tipping paper water-based ink Download PDFInfo
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- CN112094529A CN112094529A CN202011032205.XA CN202011032205A CN112094529A CN 112094529 A CN112094529 A CN 112094529A CN 202011032205 A CN202011032205 A CN 202011032205A CN 112094529 A CN112094529 A CN 112094529A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000007639 printing Methods 0.000 title claims abstract description 21
- 238000003672 processing method Methods 0.000 title claims abstract description 19
- 239000000049 pigment Substances 0.000 claims abstract description 47
- 238000000227 grinding Methods 0.000 claims abstract description 43
- 238000002156 mixing Methods 0.000 claims abstract description 23
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 15
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical group NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 12
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 7
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 5
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 239000001361 adipic acid Substances 0.000 claims description 5
- 235000011037 adipic acid Nutrition 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 15
- 239000011230 binding agent Substances 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 5
- 238000010790 dilution Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 3
- 239000000976 ink Substances 0.000 description 45
- 235000019504 cigarettes Nutrition 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
Classifications
-
- 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention relates to the technical field of processing of water-based ink, in particular to a processing method of water-based ink for flexible printing environment-friendly tipping paper. Which comprises the following steps: mixing the pigment and methyl methacrylate, adding a pH regulator to regulate the pH to 8-9.5, and grinding to obtain base ink; mixing and stirring the base ink, the connecting material and the auxiliary agent to obtain finished ink. The pigment and the methyl methacrylate are blended and ground firstly to uniformly disperse pigment particles in the methyl methacrylate to form base ink, and the viscosity of the methyl methacrylate is increased due to heating, so that the pigment is subjected to larger shearing force during grinding and dispersing and is easier to disperse into particles with smaller particle size. After the pigment is fully dispersed, the binder and the auxiliary agent are added and stirred and mixed to obtain the finished ink, so that the problem of insufficient grinding force caused by pigment dilution by the binder and the auxiliary agent is solved, and the problem of demulsification caused by long-time grinding of the binder is solved.
Description
Technical Field
The invention relates to the technical field of processing of water-based ink, in particular to a processing method of water-based ink for flexible printing environment-friendly tipping paper.
Background
The cigarette tipping paper is paper for tipping cigarette filter tip and cigarette. In recent years, with the improvement of living standard of people, smokers pay more and more attention to the sanitary safety performance of cigarettes. The cigarette tipping paper is directly contacted with lips of smokers, and the sanitary safety performance of the cigarette tipping paper directly influences the sanitary safety performance of the cigarette.
The traditional production mode of the tipping paper for cigarettes is solvent-based ink gravure printing, so that hidden dangers in the aspect of health and safety indexes exist, a large amount of volatile organic solvents (namely VOCs) such as ethanol, ethyl acetate, n-propyl acetate and the like are inevitably discharged into the atmosphere in the production process, and certain adverse effects are caused to the environment.
The water-based ink is an ink formed by compositely grinding and processing water-soluble resin, organic pigment, food-grade binder and the like, does not contain organic volatile solvent, does not need to add organic solvent in the production process, not only can improve the sanitary safety performance of tipping paper for cigarettes, improves the sanitary safety of cigarettes, but also can effectively reduce VOCs (volatile organic compounds) discharged into the atmospheric environment, greatly reduces the amount of solvent used in production, improves the operating environment, reduces the use of dangerous chemicals, improves the safety of the production process, and saves the enterprise environmental management cost and the production cost.
The production of the water-based ink aims to uniformly disperse pigment particles into a binder, and properly add an auxiliary agent to form stable flowing liquid according to different types of inks and performance requirements. The manufacturing process of the water-based ink generally comprises the procedures of raw material preparation, stirring, grinding, filtering, inspection, packaging and the like, in the traditional process, a binder, a pigment and a part of auxiliary agents are directly mixed together and then ground, and in the processing method, due to the addition and dilution effects of the binder and the auxiliary agents, the viscosity of the pigment can be reduced, so that the shearing force of the whole system is reduced during grinding and dispersion, the pigment is not beneficial to grinding and dispersion in the mixed system, and the problem of larger fineness of the ink is caused. Also, long term grinding of the vehicle can cause demulsification, which can lead to delamination of the pigment and resin.
Disclosure of Invention
The invention aims to solve the problems and provides a method for processing the water-based ink for the flexo printing environment-friendly tipping paper.
The technical scheme for solving the problems is to provide a method for processing the water-based ink for the flexible printing environment-friendly tipping paper, which comprises the following steps:
(1) mixing the pigment and methyl methacrylate, adding a pH regulator to regulate the pH to 8-9.5, and grinding to obtain base ink; the pigment is a modified pigment obtained by soaking the pigment with liquid carbon dioxide at 0-10 ℃ and 3-4MPa for 2-3h, releasing the pigment to normal pressure and heating the pigment to above 31 ℃;
(2) mixing and stirring the base ink, the connecting material and the auxiliary agent to obtain finished ink.
Preferably, in the step (1), after the polishing is carried out at a temperature of 75-85 ℃ for 60-90min, the temperature is raised to 100-.
Preferably, the pigment and the methyl methacrylate are mixed, ground at the temperature of 75-85 ℃ for 60-90min, added with zinc powder, and heated to 100-110 ℃ for grinding for 200-300 min.
Preferably, the grinding speed is 1500-2000r/min at the temperature of 75-85 ℃; the polishing speed is 800-1000r/min at the temperature of 100-110 ℃.
Preferably, zirconia beads are used as milling media. The zirconia beads had a density of 5.7g/cm3Compared with other grinding media with the same volume, the ball grinding media have large mass, the momentum of the ball is only positively correlated with the movement speed and the mass according to the momentum theorem, and the larger the mass of the ball is, the larger the energy is, the larger the power generated during mutual collision friction is, and the ink with smaller fineness can be obtained under the same diameter and movement speed.
Preferably, zirconia beads with the particle size of 1.5mm are selected, and under the same quality, the number of zirconia beads with smaller particle sizes is larger, so that the contact points with the ink are also larger, the probability that the zirconia beads collide with each other in a sand mill to generate shearing action is larger, and the dispersing performance of the ground ink is improved. Meanwhile, when the product fineness is required to be high, if the used grinding medium is too large, gaps among zirconium dioxide beads are large, so that a small part of pigment is likely to be dissociated among the gaps of the zirconium dioxide beads, and the product cannot reach the required fineness.
Preferably, the pH regulator is ethanolamine. The ink obtained by selecting the ethanolamine has no pungent smell, and the sample sheets have no peculiar smell, so that the requirements of the water-based ink for the environment-friendly tipping paper for the flexible printing of the water-based ink are met.
Preferably, the mixing mass ratio of the pigment and the methyl methacrylate is 2: (1-1.5).
Preferably, the mixing mass ratio of the pigment to the zinc powder is 1: (0.8-1).
Preferably, in step (2), the base ink is added during the preparation of the vehicle, and comprises the following steps: mixing adipic acid and diethylenetriamine, dissolving in water, heating to 163-173 ℃, keeping the temperature for 2.5-3h, cooling to below 120 ℃, adding hot water at 70-80 ℃, and stirring to form a homogeneous phase; then cooling to 80-90 ℃, adding the base ink, preserving heat for 1-2h, and cooling to 20-25 ℃ to obtain a mixture.
Preferably, the method further comprises the following steps: slowly adding epoxy chloropropane into the mixture under stirring, heating to 60-70 ℃, keeping the temperature for 1.5-2h, and then adding dilute hydrochloric acid to adjust the pH value to 4-5 to obtain the bonding material.
The invention has the beneficial effects that:
1. firstly, the pigment and the grinding aid are blended and ground to uniformly disperse pigment particles in the grinding aid to form base ink, the grinding aid has higher viscosity, so that the viscosity of the whole system is higher, and the pigment is subjected to higher shearing force during grinding and dispersing and is easier to disperse into particles with smaller particle size. After the pigment is fully dispersed, the binder and the auxiliary agent are added and stirred and mixed to obtain the finished ink, so that the problem of insufficient grinding force caused by pigment dilution by the binder and the auxiliary agent is solved, and the problem of demulsification caused by long-time grinding of the binder is solved.
2. Methyl methacrylate is used as a grinding aid, and during grinding, the methyl methacrylate generates heat due to grinding and is subjected to thermal polymerization, so that the viscosity is gradually increased, the viscosity and the brightness of the base ink obtained by blending can be improved, the viscosity of the whole grinding system is increased due to the high viscosity of the methyl methacrylate, the shearing force applied to the pigment is further increased, and the pigment is easier to disperse into particles with small particle sizes.
3. The connecting material adopts polyamide resin, methyl methacrylate can be used as a modifier to be graft copolymerized with amide resin, and introduction of a polar group of the methyl methacrylate is beneficial to enhancing the adhesion and water solubility of the resin, so that the resin can be better used for water-based ink.
Detailed Description
The following are specific embodiments of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1
A processing method of water-based ink for flexo printing environment-friendly tipping paper comprises the following steps:
(1) the pigment is put at 5 ℃ and 3.5MPa, and is soaked by liquid carbon dioxide for 2.5h, then the mixture is released to normal pressure and heated to 31 ℃ to obtain the modified pigment. Mixing 2 parts of modified pigment and 1.2 parts of methyl methacrylate according to parts by mass, adding ethanolamine to adjust the pH to 9, grinding at 80 ℃ at the rotating speed of 1800r/min for 70min, adding 0.45 part of zinc powder, heating to 105 ℃, and grinding at the rotating speed of 900r/min for 250min to obtain the base ink. When grinding, zirconium dioxide beads with the particle size of 1.5mm are used as grinding media.
(2) Mixing adipic acid and diethylenetriamine, dissolving in water, heating to 170 ℃, keeping the temperature for 2.8h, cooling to 115 ℃, adding hot water at 75 ℃, and stirring to form a homogeneous phase; then cooling to 85 ℃, adding the base ink, preserving the heat for 1.5h, and cooling to 22 ℃ to obtain a mixture.
(3) Slowly adding epoxy chloropropane into the mixture under stirring, heating to 65 ℃, keeping the temperature for 1.8h, and then adding dilute hydrochloric acid to adjust the pH to 4.5 to obtain the bonding material.
(4) And mixing and stirring the binder and the auxiliary agent to obtain the finished ink.
The resulting formed ink was subjected to fineness measurement and parallel testing 50 times, and the results are shown in table 1 below.
Example 2
A processing method of water-based ink for flexo printing environment-friendly tipping paper comprises the following steps:
(1) the pigment is put at 0 ℃ and 3MPa, and is soaked by liquid carbon dioxide for 2 hours, then the liquid carbon dioxide is released to normal pressure and heated to 35 ℃ to obtain the modified pigment. Mixing 2 parts of modified pigment and 1 part of methyl methacrylate according to parts by mass, adding ethanolamine to adjust the pH value to 8, grinding at the temperature of 75 ℃ for 60min at the rotating speed of 1500r/min, adding 0.4 part of zinc powder, heating to 100 ℃, and grinding at the rotating speed of 800r/min for 200min to obtain the base ink. When grinding, zirconium dioxide beads with the particle size of 1.5mm are used as grinding media.
(2) Mixing adipic acid and diethylenetriamine, dissolving in water, heating to 163 ℃, keeping the temperature for 2.5h, cooling to 100 ℃, adding hot water at 70 ℃, and stirring to form a homogeneous phase; then cooling to 80 ℃, preserving heat for 1h, and cooling to 20 ℃ to obtain a mixture.
(3) Slowly adding epoxy chloropropane into the mixture under stirring, heating to 60 ℃, preserving the temperature for 1.5h, and then adding dilute hydrochloric acid to adjust the pH value to 4 to obtain the bonding material.
(4) And mixing and stirring the base ink, the bonding material and the auxiliary agent to obtain finished ink.
The resulting formed ink was subjected to fineness measurement and parallel testing 50 times, and the results are shown in table 1 below.
Example 3
A processing method of water-based ink for flexo printing environment-friendly tipping paper comprises the following steps:
(1) the pigment is put at 10 ℃ and 4MPa, and is soaked by liquid carbon dioxide for 3 hours, then the liquid carbon dioxide is released to normal pressure and heated to 40 ℃ to obtain the modified pigment. Mixing 2 parts of modified pigment and 1.5 parts of methyl methacrylate, adding ethanolamine to adjust the pH value to 9.5, grinding at the rotating speed of 2000r/min for 90min at the temperature of 85 ℃, adding 0.5 part of zinc powder, heating to 110 ℃, and grinding at the rotating speed of 1000r/min for 300min to obtain the base ink. When grinding, zirconium dioxide beads with the particle size of 1.5mm are used as grinding media.
(2) Mixing adipic acid and diethylenetriamine, dissolving in water, heating to 173 ℃, keeping the temperature for 3 hours, cooling to 118 ℃, adding 80 ℃ hot water, and stirring to form a homogeneous phase; then cooling to 90 ℃, adding the base ink, preserving the heat for 2 hours, and cooling to 25 ℃ to obtain a mixture.
(3) Slowly adding epoxy chloropropane into the mixture under stirring, heating to 70 ℃, preserving the temperature for 2h, and then adding dilute hydrochloric acid to adjust the pH value to 5 to obtain the bonding material.
(4) And mixing and stirring the binder and the auxiliary agent to obtain the finished ink.
The resulting formed ink was subjected to fineness measurement and parallel testing 50 times, and the results are shown in table 1 below.
Comparative example 1
A processing method of water-based ink for flexo printing environment-friendly tipping paper comprises the following steps:
the pigment was mixed with the vehicle obtained in example 2 and the auxiliary used in example 2, ethanolamine was added to adjust the pH to 8, the mixture was ground at a temperature of 75 ℃ at a rotation speed of 1500r/min for 60min, and then the mixture was heated to 100 ℃ and ground at a rotation speed of 800r/min for 200min to obtain an ink. When grinding, zirconium dioxide beads with the particle size of 1.5mm are used as grinding media.
The resulting formed ink was subjected to fineness measurement and parallel testing 50 times, and the results are shown in table 1 below.
Table 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A processing method of water-based ink for flexible printing environment-friendly tipping paper is characterized by comprising the following steps: the method comprises the following steps:
mixing the pigment and methyl methacrylate, adding a pH regulator to regulate the pH to 8-9.5, and grinding to obtain base ink; the pigment is a modified pigment obtained by soaking the pigment with liquid carbon dioxide at 0-10 ℃ and 3-4MPa for 2-3h, releasing the pigment to normal pressure and heating the pigment to above 31 ℃;
mixing and stirring the base ink, the connecting material and the auxiliary agent to obtain finished ink.
2. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 1, characterized in that: in the step (1), after polishing at 75-85 ℃ for 60-90min, the temperature is raised to 100-.
3. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 2, characterized in that: mixing the pigment and methyl methacrylate, grinding at 75-85 ℃ for 60-90min, adding zinc powder, heating to 100-.
4. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 2, characterized in that: the grinding speed is 1500-; the polishing speed is 800-1000r/min at the temperature of 100-110 ℃.
5. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 1, characterized in that: zirconium dioxide beads are selected as grinding media.
6. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 1, characterized in that: the pH regulator is ethanolamine.
7. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 1, characterized in that: the mixing mass ratio of the pigment to the methyl methacrylate is 2: (1-1.5).
8. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 3, characterized in that: the mixing mass ratio of the pigment to the zinc powder is 1: (0.8-1).
9. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 1, characterized in that: in the step (2), the base ink is added in the preparation process of the vehicle, and the method comprises the following steps: mixing adipic acid and diethylenetriamine, dissolving in water, heating to 163-173 ℃, keeping the temperature for 2.5-3h, cooling to below 120 ℃, adding hot water at 70-80 ℃, and stirring to form a homogeneous phase; then cooling to 80-90 ℃, adding the base ink, preserving heat for 1-2h, and cooling to 20-25 ℃ to obtain a mixture.
10. The processing method of the water-based ink for the flexo printing environment-friendly tipping paper according to claim 9, characterized in that: further comprising the steps of: slowly adding epoxy chloropropane into the mixture under stirring, heating to 60-70 ℃, keeping the temperature for 1.5-2h, and then adding dilute hydrochloric acid to adjust the pH value to 4-5 to obtain the bonding material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637077A (en) * | 2022-10-20 | 2023-01-24 | 湖北中烟工业有限责任公司 | Preparation method of flexographic printing ink for tipping paper |
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2020
- 2020-09-27 CN CN202011032205.XA patent/CN112094529A/en active Pending
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