CN116004053A - Water-based ink printing and packaging process - Google Patents
Water-based ink printing and packaging process Download PDFInfo
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- CN116004053A CN116004053A CN202310098495.5A CN202310098495A CN116004053A CN 116004053 A CN116004053 A CN 116004053A CN 202310098495 A CN202310098495 A CN 202310098495A CN 116004053 A CN116004053 A CN 116004053A
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Abstract
The invention discloses a water-based ink printing packaging process, and relates to the technical field of water-based ink printing. The process specifically comprises the following steps of; s1: mixing the nano porous powder and absolute ethyl alcohol in a constant low pressure stirrer at 15-20 ℃ for 2-3h; s2: uniformly mixing the aqueous polyurethane emulsion and the pigment, grinding until the fineness is below 1000nm, and then mixing a wetting agent, a defoaming agent, a leveling agent and a dispersing agent into a normal pressure mixer, and continuously stirring and mixing for 1-1.5h; s3: adding the mixture obtained in the step S1 into a stirrer of the step S2, adding deionized water, and stirring and mixing uniformly; s4: and (3) continuously oscillating the mixture obtained in the step (S3) for 5-7 hours at the temperature of 30-35 ℃ to obtain the water-based ink. The water-based ink on the package can effectively reduce the problems of fading when meeting water and poor pigment adhesiveness during printing.
Description
Technical Field
The invention belongs to the technical field of water-based ink printing, and particularly relates to a water-based ink printing packaging process.
Background
The packaging printing is printing with various packaging materials as carriers, and decorative patterns, patterns or characters are printed on the packaging, so that the product is more attractive or more explanatory, and the effects of transmitting information and increasing sales are achieved;
the water-based ink printing is a packaging printing method, and can use water as a solvent, so that pollution generated in the printing process is less, resources and energy sources are saved, the influence on the ecological environment is small, and the water-based ink printing method is widely applied to packaging printing products with strict sanitary conditions such as foods, beverages, medicines, children toys and the like;
although the water-based ink printing has a plurality of advantages, the conventional water-based ink printing package still has the problems of easy fading when meeting water and poor adhesiveness during printing in actual use, so that the prior art needs to be improved to solve the technical problems.
Disclosure of Invention
The invention aims to provide a water-based ink printing and packaging process, which can effectively reduce the problems of fading in water and poor pigment adhesion during printing when the water-based ink on a package is printed by the process, and solves the problems of fading in water and poor pigment adhesion during printing of the package printed by the conventional water-based ink printing process.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a water-based ink printing and packaging process, which specifically comprises the following steps of;
s1: mixing the nano porous powder and absolute ethyl alcohol in a constant low pressure stirrer at 15-20 ℃ for 2-3h;
s2: uniformly mixing the aqueous polyurethane emulsion and the pigment, grinding until the fineness is below 1000nm, and then mixing a wetting agent, a defoaming agent, a leveling agent and a dispersing agent into a normal pressure mixer, and continuously stirring and mixing for 1-1.5h;
s3: adding the mixture obtained in the step S1 into a stirrer of the step S2, adding deionized water, and stirring and mixing uniformly;
s4: continuously oscillating the mixture obtained in the step S3 for 5-7 hours at the temperature of 30-35 ℃ to obtain water-based ink;
s5: adding the water-based ink prepared in the step S4 into an ink tank of a printer, dampening, and then pressing down a pressing shaft onto a to-be-printed object to finish printing;
s6: and conveying the printed matter after printing into a drying oven through a conveying belt, drying for 1-3min at the temperature of 70-75 ℃ to obtain a printed matter finished product, and packaging and warehousing.
Further, the weight ratio of each component is as follows: 20-23 parts of nano porous powder, 7-11 parts of absolute ethyl alcohol, 38-42 parts of aqueous polyurethane emulsion, 25-27 parts of pigment, 3-4 parts of wetting agent, 2-3 parts of defoamer, 5-7 parts of flatting agent, 1-4 parts of dispersing agent and 35-45 parts of deionized water.
Further, the weight ratio of each component is as follows: 20 parts of nano porous powder, 7 parts of absolute ethyl alcohol, 42 parts of aqueous polyurethane emulsion, 25 parts of pigment, 4 parts of wetting agent, 2 parts of defoamer, 7 parts of flatting agent, 1 part of dispersing agent and 45 parts of deionized water.
Further, the weight ratio of each component is as follows: 23 parts of nano porous powder, 11 parts of absolute ethyl alcohol, 38 parts of aqueous polyurethane emulsion, 27 parts of pigment, 3 parts of wetting agent, 3 parts of defoamer, 5 parts of flatting agent, 4 parts of dispersing agent and 35 parts of deionized water.
Further, the pore size of the nano-porous powder is 50-1000nm.
Further, the nanoporous powder is a metal oxide powder.
Further, the nanoporous powder is a non-metal oxide powder.
Further, the constant low pressure mixer in step S1 maintains a pressure of 0.5 to 0.7atm.
Further, before step S6, a film forming auxiliary agent may be uniformly sprayed on the surface of the printed pattern, and maintained at room temperature for 25-30min, wherein the total weight part of the film forming auxiliary agent is 7-10 parts.
Further, the film forming auxiliary agent is any one of propylene glycol butyl ether and propylene glycol methyl ether acetate.
The invention has the following beneficial effects:
1. according to the invention, the nano porous powder is arranged, after the nano porous powder is mixed with the pigment, the pigment can be filled in the gaps of the nano porous powder, so that the stability of the pigment is improved, the fading of a printed matter when the printed matter is in contact with water can be effectively reduced, and the practicality is good.
2. According to the invention, the nano porous powder adopts metal oxide powder, so that a good heat conduction effect can be achieved according to the characteristics of the metal oxide, and the quality of products in the package is improved.
3. The film forming auxiliary agent can form a layer of film on the printed pattern after spraying, thereby improving the adhesiveness between the pigment and the package and prolonging the service life of the package.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
The invention relates to a water-based ink printing and packaging process, which specifically comprises the following steps of;
s1: continuously stirring and mixing the nano porous powder with the pore diameter of 50-1000nm and absolute ethyl alcohol in a constant low pressure stirrer with the pressure of 0.5-0.7atm at 15-20 ℃ for 2-3 hours to realize the filling of the absolute ethyl alcohol into pores in the nano porous powder and avoid the occurrence of pore patterns on the surface of a printed matter caused by residual gas in the pores;
s2: uniformly mixing the aqueous polyurethane emulsion serving as a connecting material with pigment, grinding until the fineness is below 1000nm to ensure that the molecular particle size of the pigment is smaller than the pore diameter of nano porous powder, then mixing a wetting agent, a defoaming agent, a leveling agent and a dispersing agent into a normal pressure mixer, and continuously stirring and mixing for 1-1.5h;
s3: adding the mixture obtained in the step S1 into a stirrer of the step S2, adding deionized water, and stirring and mixing uniformly;
s4: continuously oscillating the mixture obtained in the step S3 for 5-7 hours at the temperature of 30-35 ℃ by ultrasonic waves to enable the pigment to fully enter the pores of the nano porous powder, so as to obtain water-based ink;
s5: adding the water-based ink prepared in the step S4 into an ink tank of a printer, dampening, and then pressing down a pressing shaft onto a to-be-printed object to finish printing;
s6: and conveying the printed matter after printing into a drying box through a conveying belt, drying for 1-3min at the temperature of 70-75 ℃, preferably adopting a hot air conveying mode to dry, and obtaining a printed matter finished product, and packaging and warehousing.
In the process, before the step S6, a film forming additive is sprayed on the surface of the printed pattern uniformly, and the film forming additive is kept at room temperature for 25-30min, wherein the film forming additive is preferably any one of propylene glycol butyl ether and propylene glycol methyl ether acetate, so that a layer of protective film is formed on the surface of the printed pattern, and the adhesiveness of pigment is improved;
in addition, nanoporous powders include metal oxide powders (e.g., titanium dioxide, manganese oxide, etc.) and non-metal oxide powders (e.g., carbonates, graphene, etc.);
wetting agents, preferably alkyl sulfate wetting agents or sulfonate wetting agents, defoamers, preferably non-silicon defoamers, leveling agents, preferably silicone leveling agents or non-silicon leveling agents, and dispersants, preferably polycarboxylate ammonium salt dispersants;
the weight ratio of each component is as follows: the paint comprises, by weight, 7-10 parts of a total weight of 20-23 parts of nano porous powder, 7-11 parts of absolute ethyl alcohol, 38-42 parts of aqueous polyurethane emulsion, 25-27 parts of pigment, 3-4 parts of wetting agent, 2-3 parts of defoamer, 5-7 parts of leveling agent, 1-4 parts of dispersing agent, 35-45 parts of deionized water and film-forming auxiliary agent.
Example 1
The weight ratio of each component is as follows: 20 parts of nano porous powder, 7 parts of absolute ethyl alcohol, 42 parts of aqueous polyurethane emulsion, 25 parts of pigment, 4 parts of wetting agent, 2 parts of defoamer, 7 parts of flatting agent, 1 part of dispersing agent, 45 parts of deionized water and 7 parts of film forming auxiliary agent.
Example two
The weight ratio of each component is as follows: 23 parts of nano porous powder, 11 parts of absolute ethyl alcohol, 38 parts of aqueous polyurethane emulsion, 27 parts of pigment, 3 parts of wetting agent, 3 parts of defoamer, 5 parts of flatting agent, 4 parts of dispersing agent, 35 parts of deionized water and 10 parts of film forming auxiliary agent.
Example III
The weight ratio of each component is as follows: 22 parts of nano porous powder, 9 parts of absolute ethyl alcohol, 40 parts of aqueous polyurethane emulsion, 26 parts of pigment, 3.5 parts of wetting agent, 2.5 parts of defoamer, 6 parts of flatting agent, 2.5 parts of dispersing agent, 40 parts of deionized water and 8.5 parts of film forming auxiliary agent.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present invention.
Claims (10)
1. A water-based ink printing and packaging process is characterized in that: the process specifically comprises the following steps of;
s1: mixing the nano porous powder and absolute ethyl alcohol in a constant low pressure stirrer at 15-20 ℃ for 2-3h;
s2: uniformly mixing the aqueous polyurethane emulsion and the pigment, grinding until the fineness is below 1000nm, and then mixing a wetting agent, a defoaming agent, a leveling agent and a dispersing agent into a normal pressure mixer, and continuously stirring and mixing for 1-1.5h;
s3: adding the mixture obtained in the step S1 into a stirrer of the step S2, adding deionized water, and stirring and mixing uniformly;
s4: continuously oscillating the mixture obtained in the step S3 for 5-7 hours at the temperature of 30-35 ℃ to obtain water-based ink;
s5: adding the water-based ink prepared in the step S4 into an ink tank of a printer, dampening, and then pressing down a pressing shaft onto a to-be-printed object to finish printing;
s6: and conveying the printed matter after printing into a drying oven through a conveying belt, drying for 1-3min at the temperature of 70-75 ℃ to obtain a printed matter finished product, and packaging and warehousing.
2. The aqueous ink printing and packaging process according to claim 1, wherein: the weight ratio of each component is as follows: 20-23 parts of nano porous powder, 7-11 parts of absolute ethyl alcohol, 38-42 parts of aqueous polyurethane emulsion, 25-27 parts of pigment, 3-4 parts of wetting agent, 2-3 parts of defoamer, 5-7 parts of flatting agent, 1-4 parts of dispersing agent and 35-45 parts of deionized water.
3. The aqueous ink printing and packaging process according to claim 2, wherein: the weight ratio of each component is as follows: 20 parts of nano porous powder, 7 parts of absolute ethyl alcohol, 42 parts of aqueous polyurethane emulsion, 25 parts of pigment, 4 parts of wetting agent, 2 parts of defoamer, 7 parts of flatting agent, 1 part of dispersing agent and 45 parts of deionized water.
4. The aqueous ink printing and packaging process according to claim 2, wherein: the weight ratio of each component is as follows: 23 parts of nano porous powder, 11 parts of absolute ethyl alcohol, 38 parts of aqueous polyurethane emulsion, 27 parts of pigment, 3 parts of wetting agent, 3 parts of defoamer, 5 parts of flatting agent, 4 parts of dispersing agent and 35 parts of deionized water.
5. The water-based ink printing and packaging process according to claim 3 or 4, wherein: the pore diameter of the nano porous powder is 50-1000nm.
6. The aqueous ink printing and packaging process according to claim 5, wherein: the nanoporous powder is a metal oxide powder.
7. The aqueous ink printing and packaging process according to claim 5, wherein: the nanoporous powder is a non-metal oxide powder.
8. The aqueous ink printing and packaging process according to claim 6 or 7, wherein: the constant low pressure mixer in step S1 maintains a pressure of 0.5 to 0.7atm.
9. The aqueous ink printing and packaging process according to claim 8, wherein: before the step S6, film forming auxiliary agents can be uniformly sprayed on the surface of the printed pattern, and the film forming auxiliary agents can be kept at room temperature for 25-30min, wherein the total weight parts of the film forming auxiliary agents are 7-10 parts.
10. The aqueous ink printing and packaging process according to claim 9, wherein: the film forming auxiliary agent is any one of propylene glycol butyl ether and propylene glycol methyl ether acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310098495.5A CN116004053A (en) | 2023-02-10 | 2023-02-10 | Water-based ink printing and packaging process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310098495.5A CN116004053A (en) | 2023-02-10 | 2023-02-10 | Water-based ink printing and packaging process |
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| CN202310098495.5A Pending CN116004053A (en) | 2023-02-10 | 2023-02-10 | Water-based ink printing and packaging process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284966A (en) * | 2008-05-29 | 2008-10-15 | 西安理工大学 | Polyurethane based water-based ink and method for preparing same |
| CN107778965A (en) * | 2016-08-31 | 2018-03-09 | 天津天女化工集团股份有限公司 | A kind of nano-particle vegetable oil base rubber printing ink and preparation method thereof |
| CN113022184A (en) * | 2021-01-29 | 2021-06-25 | 杭州泰伏广告有限公司 | Spray painting process |
-
2023
- 2023-02-10 CN CN202310098495.5A patent/CN116004053A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284966A (en) * | 2008-05-29 | 2008-10-15 | 西安理工大学 | Polyurethane based water-based ink and method for preparing same |
| CN107778965A (en) * | 2016-08-31 | 2018-03-09 | 天津天女化工集团股份有限公司 | A kind of nano-particle vegetable oil base rubber printing ink and preparation method thereof |
| CN113022184A (en) * | 2021-01-29 | 2021-06-25 | 杭州泰伏广告有限公司 | Spray painting process |
Non-Patent Citations (1)
| Title |
|---|
| 欧阳慧: "《高分子产品的理论应用与开发》", vol. 1, 吉林大学出版社, pages: 225 * |
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