CN113549367A - Low-migration printing material, food-grade packaging printing carton and preparation method thereof - Google Patents
Low-migration printing material, food-grade packaging printing carton and preparation method thereof Download PDFInfo
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- CN113549367A CN113549367A CN202110838346.9A CN202110838346A CN113549367A CN 113549367 A CN113549367 A CN 113549367A CN 202110838346 A CN202110838346 A CN 202110838346A CN 113549367 A CN113549367 A CN 113549367A
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/06—Printing inks based on fatty oils
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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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
- 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
- C09D11/08—Printing inks based on natural resins
Abstract
The application relates to the technical field of environment-friendly printing materials, and particularly discloses a low-migration printing material, a food-grade packaging printing carton and a preparation method of the low-migration printing material. The printing material comprises 1-3 parts of polyethylene wax, 5-10 parts of initiator, 60-70 parts of binder, 0-15 parts of pigment and 0-5 parts of other auxiliary agents; the initiator comprises Irgacur cationic photoinitiator, I-250 iodonium salt cationic photoinitiator, TX-beta-CD initiator or TX-GA initiator. The preparation method comprises the steps of mixing the pigment, the connecting material, other auxiliary agents, polyethylene wax and the initiator, stirring for 30-60 minutes, and grinding for 15-20 minutes; cooling to room temperature and filtering. The printing material has the advantages of low migration, high adhesive force and high curing speed; the prepared food-grade packaging printing paper box can directly contact with food, does not need to be packaged again, and is very convenient and safe.
Description
Technical Field
The invention relates to the technical field of environment-friendly printing materials, in particular to a low-migration printing material, a food-grade packaging printing carton and a preparation method thereof.
Background
After the ink is dried and cured on the substrate to form an ink layer or an ink film, the ink is transferred to other places through contact or scratch due to friction, incomplete curing of the ink layer, poor adhesion and the like, so that the ink is polluted, namely the ink is transferred. At present, it can be said that any ink cannot completely achieve zero migration, and only the migration amount is different.
The main components of the UV ink comprise a prepolymer with photocuring, a reactive monomer, a photoinitiator, a pigment and the like. Compared with solvent-based ink, the UV ink is widely used for printing packages, labels and the like due to the advantages of the UV ink, such as short curing time, stable printing quality, high efficiency, no use of organic solvent in the production process and the like. However, most photoinitiators on the market currently migrate during use, thereby raising a general concern about ink safety.
Disclosure of Invention
In order to improve the safety of the printing ink and reduce the migration quantity of the printing ink, the application provides a low-migration printing material, a food-grade packaging printing carton and a preparation method thereof.
In a first aspect, the present application provides a low migration printing material, which adopts the following technical scheme:
a low-migration printing material is prepared from the following raw materials in parts by weight:
the other auxiliary agents adopt food-grade auxiliary agents, and the food-grade auxiliary agents comprise at least one of filling agents and defoaming agents; the initiator comprises a free radical type initiator and/or a cationic initiator, and the cationic initiator is selected from at least one of Irgacur cationic photoinitiator and I-250 iodonium salt cationic photoinitiator; the radical type initiator is selected from at least one of a TX-beta-CD initiator and a TX-GA initiator.
By adopting the technical scheme, the initiators including the Irgacur cationic photoinitiator, the I-250 iodonium salt cationic photoinitiator, the TX-beta-CD initiator and the TX-GA initiator are less in dosage, and the initiators are added into a printing material system to improve the curing efficiency of the printing material on the whole and reduce the curing time; meanwhile, the residue amount of fragments of the initiator is small in the photopolymerization process, and the residual fragments of the initiator have a cage effect due to large molecular weight, so that the residual fragments are not easy to migrate to the surface of a product, and therefore, the printing material can be used as a food label and a soft package printing material, and an oil film prepared by the method has high adhesion and stability, is not easy to cause an ink migration phenomenon, and is very safe.
Preferably, the printing material is prepared from the following raw materials in parts by weight:
by adopting the technical scheme, other components such as the plasticizer and the like are not added, so that the phenomenon that a part of pigment is dissolved out from the printing material to pollute commodities in the package can be effectively reduced. Meanwhile, the influence of the auxiliary agent on the stability of the printing material can be effectively reduced by controlling the dosage range between the pigment and other auxiliary agents.
Preferably, the initiator consists of a free radical initiator and a cationic initiator, and the weight ratio of the free radical initiator to the cationic initiator is (1-3): 1.
by adopting the technical scheme, the free radical initiator and the cationic initiator are compounded for use, so that a synergistic effect can be achieved, at least free radicals and cations exist in an ink system in the curing process of a printing material, the monomer components in the ink can be initiated to be polymerized, crosslinked and cured, the curing speed of the whole system is obviously improved, and the free radical initiator and the cationic initiator are verified to be in the range of (1-3): the adhesion and hardness are better and the migration amount is lower within the range of 1.
Preferably, the binder is one or more of tung oil, ink oil and rosin ester.
By adopting the technical scheme, the tung oil, the ink oil and the rosin ester are common connecting materials, and the normal rheological property, viscosity, drying property, film forming property and printing performance of the ink can be achieved.
Preferably, the pigment is selected from at least two of titanium dioxide, iron blue, scarlet powder and even light yellow; the powder particles of the pigment are controlled to be 0.4-0.8 mu m.
Preferably, the powder particles of the pigment are controlled to be 0.4 to 0.5. mu.m.
By adopting the technical scheme, titanium dioxide, iron blue, scarlet powder and even light yellow are pigments used for common printing materials, the dispersion performance of the pigments can be effectively improved by controlling the particle size of the added pigment powder, meanwhile, the pigment powder with smaller particle size can enter the molecules of other printing materials, and the pigments can be tightly confined in oil film molecules through solidification, so that the problem of product pollution in a package caused by pigment moving outwards is further reduced.
Preferably, the filler is selected from one or more of food grade calcium carbonate, colloidal calcium carbonate, maltodextrin and aluminum hydroxide.
By adopting the technical scheme, the food-grade calcium carbonate, the colloidal calcium carbonate, the maltodextrin and the aluminum hydroxide are common fillers and are mainly used as filling substances of pigments to reduce the using amount of the pigments and the cost of printing materials; meanwhile, the color of the printing material can be adjusted, and the printability of the printing material is improved.
In a second aspect, the present application provides a method for preparing a low-migration printing material, which adopts the following technical scheme: a method of preparing a low migration printed material, comprising the steps of: mixing the pigment, the connecting material, other additives, polyethylene wax and an initiator, dispersing, stirring for 30-60 minutes, and grinding for 15-20 minutes at 50-70 ℃ under 0.5-0.8 MP; cooling to room temperature and filtering.
Preferably, food-grade calcium carbonate is selected as a filler, and titanium dioxide is selected as a pigment; firstly, food-grade calcium carbonate and titanium dioxide are premixed and then ground for 10 to 15 minutes at 50 to 70 ℃ and 0.5 to 0.8 MP.
By adopting the technical scheme, the calcium carbonate does not contain hydroxyl, but can be hydrolyzed under the action of water attached to the surface in the grinding and crushing process to generate a layer of alkaline oleophobic hydroxyl-containing surface, while the titanium dioxide is a typical oxide capable of being subjected to surface hydroxylation, and the whole reaction is carried out in aqueous solution, so that CaCO3And TiO2The surface of the particle can generate strong hydroxylation performance to form a certain chemical bond, and the combination of the particle and the particle can be effectively enhanced through grinding, so that the titanium dioxide distributed on the surface of the calcium carbonate is stably deposited to form a coating layer. Not only improves the quality of the titanium dioxide, better exerts the oil absorption effect and the covering capability of the titanium dioxide, but also further improves the quality of the prepared ink.
Preferably, the dispersion stirring is performed by using a dispersion machine, wherein the rotation speed of the dispersion machine is 300-500 rpm.
By adopting the technical scheme, the method is simple and convenient to operate, the printing material prepared by the method has the effects of high adhesive force and high curing speed of printing ink, an oil film after printing is not easy to migrate, the oil film can directly contact with food, secondary packaging is not needed, and the method is very convenient and safe.
In a third aspect, the present application provides a food-grade packaging printing carton, which adopts the following technical scheme:
a food grade packaging printing paper box, the printing paper box is a box body made of food grade printing paperboard, an ink layer is obtained by printing one low-migration printing material according to any one of claims 1-6 on any one side of the food grade printing paperboard, and the thickness of the food grade printing paperboard is 0.6-2 mm.
By adopting the technical scheme, each component in the printing ink layer after printing is finished has good stability and is not easy to migrate, so that the printing ink layer can be in direct contact with food, secondary packaging is not needed, and the printing ink layer is very convenient and safe.
Preferably, the food-grade printing paperboard is at least one of food-grade white paperboard, food-grade white kraft paper, food-grade silicone oil paper, food-grade sheaf paper, food-grade laminating paper or food-grade hamburger paper.
Through adopting above-mentioned technical scheme, food level white cardboard, food level white kraft paper, food level silicone oil paper, food level sheaf paper, food level drench membrane paper or food level hamburg paper all are common food level and print the card paper, can direct contact food, green safety has further improved the security of the food of being packed.
In summary, the present application has the following beneficial effects:
1. the printing material has the advantages of low migration, high adhesive force and high curing speed; the prepared food-grade packaging printing paper box can directly contact with food.
2. In the application, the food-grade calcium carbonate and the titanium dioxide are preferably premixed and ground firstly, so that the using amount of the pigment can be reduced, the cost is saved, and the condition that the covering power and the oil absorption performance of the pigment are greatly reduced due to the addition of the filler can be effectively relieved.
3. Each component stability in this application printing ink layer after the printing is accomplished is better, and is difficult for taking place the migration, and consequently above-mentioned printing ink layer direct contact food need not repackage, convenience and safety very.
Detailed Description
The present application will be described in further detail with reference to examples.
The raw materials used in the examples of the present application are all commercially available products, except for the following specific descriptions.
The food-grade calcium carbonate is selected from food-grade calcium carbonate (with the specification of 300 meshes) with the product number of JH002, which is manufactured by Guangxi Junhui polymer technology limited company.
The DSA-5 defoaming agent is selected from Nanjing Daozhi Biotech Co., Ltd, and the model DSA-5 is food-grade defoaming agent.
The TX-GA initiator has a chemical structural formula as follows:
its english name is: 9-Oxo-9,9a-dihydro-4aH-thioxanthene-1-carboxylic acid (2,3,4,5,6-pentahydroxy-hexyl) -amide.
The TX-beta-CD initiator has a chemical structural formula as follows:
the Irgacur cationic photoinitiator is selected from Shenzhen Youyang science and technology Limited with model number I-160Triarylsulfonium salts having the chemical name: 4- (Phenylthio) phenyldiphenylsulfonium hexafluorophosphate, known by the English name of Diphenyl [ (phenylthio) phenyl]sulfonium hexafluorophosphate, molecular weight 516.5g/mol, viscosity 420 CPs.
The I-250 iodonium salt cationic photoinitiator is selected from the types I-250 iodonium salt cationic photoinitiators from Shenzhen Youyang science and technology Limited, and has the chemical name: 4-isobutylphenyl-4' -methylphenyliodiophosphonium hexafluorophosphate, known by the English name of (4-Methylphenyl) [4- (2-methylpropyl) phenyl ] iodonium hexafluorophosphate, has a molecular weight of 496.2g/mol and a viscosity of 480 CPs.
Examples
Example 1: a low-migration printing material is prepared from the following raw materials in parts by weight: polyethylene wax 1kg, initiator 5kg and binder 60 kg.
Wherein the initiator is TX-beta-CD initiator;
the binder is tung oil.
The preparation method of the low-migration printing material comprises the following operation steps: mixing the binder, polyethylene wax and initiator, dispersing in a dispersing agent at the rotating speed of 300 revolutions per minute, stirring for 30 minutes, and grinding for 15 minutes at the temperature of 50 ℃ under the pressure of 0.5 MP; and finally, cooling to room temperature and filtering.
Example 2: a low migration printed material, differing from example 1 in the raw materials and amounts of the printed material, see in particular table 1.
The printing material is prepared from the following raw materials in parts by weight: polyethylene wax 1kg, initiator 5kg, binder 65kg, pigment 5kg, filler 1.5kg and defoamer 1 kg.
Wherein the initiator is TX-beta-CD initiator;
the connecting material is ink oil;
the pigment is 2kg of titanium dioxide and 3kg of iron blue, and the powder particles of the titanium dioxide and the iron blue are controlled to be 0.45 +/-0.05 mu m;
the filler is food-grade calcium carbonate;
the defoaming agent is DSA-5 defoaming agent.
The preparation method of the low-migration printing material comprises the following operation steps:
1) food-grade calcium carbonate and titanium dioxide are firstly premixed and then ground for 15 minutes at 50 ℃ and 0.5 MP.
2) Dispersing the binder, the defoaming agent, the polyethylene wax, the initiator and the premix obtained in the step 1) in a dispersing agent at the rotating speed of 400 rpm, stirring for 60 minutes, and grinding for 20 minutes at the temperature of 70 ℃ under the pressure of 0.8 MP; and finally, cooling to room temperature and filtering.
Examples 3 to 7: a low migration printed material, differing from example 2 in the raw materials and amounts of the printed material, see in particular table 1.
TABLE 1 raw material components and corresponding amounts (kg) of examples 1 to 8 of a low migration printing material
Example 8: a low migration printed material, differing from example 6 in that: 8kg of I-250 iodonium salt cationic photoinitiator is used as the initiator.
Example 9: a low migration printed material, differing from example 6 in that: 2kg of I-250 iodonium salt cationic photoinitiator and 6kg of TX-GA initiator are used as the initiator.
Example 10: a low migration printed material, differing from example 6 in that: the initiator used was 2kg of TX-GA initiator and 6kg of TX-beta-CD initiator.
Example 11: a low migration printed material, differing from example 6 in that: the pigment adopts titanium dioxide, iron blue, even light yellow and scarlet powder, wherein the weight ratio of the titanium dioxide to the iron blue to the even light yellow to the scarlet powder is 2:1:1: 0.5. The powder particles of titanium dioxide, iron blue, light yellow and scarlet powder are all controlled to be 0.7 +/-0.1 mu m.
Example 12: a low migration printed material, differing from example 6 in that: the pigment adopts titanium dioxide and iron blue, wherein the weight ratio of the titanium dioxide to the scarlet powder is 1: 1. The powder particles of the titanium dioxide and the scarlet powder are controlled to be 0.6 +/-0.05 mu m.
Example 13: a low migration printed material, differing from example 6 in that: the connecting materials are ink oil and tung oil, wherein the weight ratio of the ink oil to the tung oil is 2: 1.
Example 14: a low migration printed material, differing from example 6 in that: the filler is colloidal calcium carbonate.
Example 15: a low migration printed material, differing from example 6 in that: the filler is maltodextrin and aluminum hydroxide, wherein the weight ratio of the maltodextrin to the aluminum hydroxide is 1: 2.
Application example
Application example 1: the utility model provides a box body that food level packing printing carton, printing carton are made by food level white kraft paper, above-mentioned box body is inside hollow cuboid structure. And printing the low-migration printing material prepared in the embodiment 6 on the two side surfaces of the food-grade white kraft paper to obtain an ink layer, wherein the thickness of the food-grade white kraft paper is 0.6 mm.
Application example 2: the utility model provides a printing carton is packed to food level, printing carton is drenched the box body that membrane paper made by food level, and above-mentioned box body is inside hollow regular hexagon structure. Printing the low-migration printing material prepared in embodiment 5 on the surface of one side of the food-grade laminating paper to obtain an ink layer, wherein the thickness of the food-grade laminating paper is 2 mm.
Application example 3: a food-grade packaging printing paper box is a box body made of food-grade sheaf paper, and the box body is of a conical tubular structure (similar to an ice cream tube) with a hollow interior. Printing the low-migration printing material prepared in example 1 on the surfaces of the two sides of the food-grade sheaf paper to obtain an ink layer, wherein the thickness of the food-grade sheaf paper is 1 mm.
Comparative example
Comparative example 1: a printed material, which differs from example 6 in that: the initiator was 8kg of the photoinitiator 2, 4-diethyl 9H-thioxanthen-9-one (DETX).
Comparative example 2: a printed material, which differs from example 6 in that: the initiator was 8kg of 4-methylbenzophenone (4-MBP).
Comparative example 3: a printed material, which differs from example 6 in that: no initiator.
Performance detection analysis
Test one: ink performance test subjects: the low migration printed materials prepared in examples 1-15 were used as test samples 1-15 and the printed materials of comparative examples 1-3 were used as control samples 1-3, totaling 18 groups of 3 swatches each.
The test method comprises the following steps: manually spraying 18 groups of samples of the printing materials of the test samples 1-15 and the comparison samples 1-3 on the surface of a food-grade white cardboard with the thickness of 1mm and the diameter of about 1.5mm by using an air spray gun at normal temperature and normal pressure, wherein the coating thickness of a sprayed ink layer is controlled to be 10-12 mu m. After the spraying is finished, the food-grade white cardboard is vertically kept stand for 5-6 minutes, and after the automatic leveling of the printing ink is finished, the white cardboard is baked for about 5 minutes at the temperature of 130-140 ℃. And cooling to room temperature for later use after baking.
Detection method and standard:
appearance quality detection method and standard: the appearance adopts visual method, under natural light, will spout the board and keep forming 145 degrees contained angles with the sight, observes the surface. The qualified standard is uniform spraying, smooth surface, limpidity and transparency. No orange peel, no particle, no shrinkage cavity, no sagging, no bubble, no crack, no drop, no scratch and other disadvantages.
Oil film thickness test: according to the GB/T13452.2-92 thickness test method, an electromagnetic film tester is adopted for testing, and the product reaches 10-12um and is qualified.
Oil film hardness test: according to the GB/T1730-93 scratch hardness method, the product reaches 1H-3H, and is qualified.
Testing the adhesion of an oil film: and according to a GB/T1720-89 hundred-grid plate partition test method, the product which reaches the 0 grade is qualified.
Testing the flexibility of the oil film: the cylinder bending is qualified by using a flexibility tester according to the GB/T1731-93 specification and reaching the diameter of 10mm or less.
And (3) testing the migration quantity: the migration amount of the photoinitiator used in the ink for food contact is required to be 0.6mg/kg or less in accordance with the standard for use of additives for food containers and packaging materials specified in GB 9685-2016.
TABLE 2
By combining examples 1-15 and comparative examples 1-3, and by combining tables 1 and 2, the appearance, oil film thickness, oil film adhesion, flexibility, and migration of examples 1-15 are all satisfactory and superior to the data of comparative examples 1-3.
Combining examples 1-8, comparative examples 1-3, and tables 1 and 2, it can be seen that the oil film hardness of examples 5-7 is above 2H, the migration amount is between 0.1-0.2mg/kg, the oil film hardness of examples 1-4, 8 and comparative examples 1-2 is about 1H, the migration amount of examples 1-4 and 8 is between 0.3-0.4mg/kg, the migration amount of comparative examples 1-2 is between 0.8-0.9mg/kg, and thus it can be seen that the free radical initiator and the cationic initiator are compounded, and the weight ratio of the free radical initiator to the cationic initiator is controlled to be (1-3): the oil film prepared by the method 1 has better adhesive force, each component in the printing material is more stable, and the migration probability of the printing ink is lower (far less than the migration amount standard of 0.6 mg/kg). Therefore, the ink layer prepared from the printing material can directly contact with food without repackaging, and is very safe and convenient.
The specific embodiments are merely illustrative of the present application and are not restrictive of the present application, and those skilled in the art can make modifications of the embodiments as required without any inventive contribution thereto after reading the present specification, but only protected by the patent laws within the scope of the claims of the present application.
Claims (10)
1. The low-migration printing material is characterized by being prepared from the following raw materials in parts by weight:
1-3 parts of polyethylene wax;
5-10 parts of an initiator;
60-70 parts of a connecting material;
0-15 parts of pigment;
0-5 parts of other auxiliary agents;
the other auxiliary agents adopt food-grade auxiliary agents, and the food-grade auxiliary agents comprise at least one of filling agents and defoaming agents; the initiator comprises a free radical type initiator and/or a cationic initiator, and the cationic initiator is selected from at least one of Irgacur cationic photoinitiator and I-250 iodonium salt cationic photoinitiator; the radical type initiator is selected from at least one of a TX-beta-CD initiator and a TX-GA initiator.
2. The low migration printing material of claim 1, wherein the printing material is prepared from the following raw materials in parts by weight:
1-3 parts of polyethylene wax;
6-10 parts of an initiator;
60-70 parts of a connecting material;
0-5 parts of pigment;
0-3 parts of a filler;
0-2 parts of a defoaming agent.
3. The low migration printing material of claim 2, wherein said initiator is composed of a radical initiator and a cationic initiator, and the weight ratio of said radical initiator to said cationic initiator is (1-3): 1.
4. a low migration printed material according to claim 3, wherein said binder is selected from one or more of tung oil, ink oil, rosin ester.
5. A low migration printed material according to claim 4, wherein said pigment is selected from at least two of titanium dioxide, iron blue, red pink, and even light yellow; the powder particles of the pigment are controlled to be 0.4-0.8 mu m.
6. The low migration printed material of claim 5, wherein the filler is selected from one or more of food grade calcium carbonate, colloidal calcium carbonate, maltodextrin, and aluminum hydroxide.
7. A method of preparing a low migration printed material according to any of claims 1 to 6, comprising the steps of: mixing the pigment, the connecting material, other additives, polyethylene wax and an initiator, dispersing, stirring for 30-60 minutes, and grinding for 15-20 minutes at 50-70 ℃ under 0.5-0.8 MP; cooling to room temperature and filtering.
8. The method as claimed in claim 7, wherein the dispersion is stirred by a disperser, wherein the rotation speed of the disperser is 300-500 rpm.
9. A food grade packaging printing paper box, characterized in that the printing paper box is a box body made of food grade printing paperboard, an ink layer is printed on any side of the food grade printing paperboard by using a low migration printing material according to any one of claims 1-6, and the thickness of the food grade printing paperboard is 0.6-2 mm.
10. The food-grade packaging printing carton according to claim 9, wherein the food-grade printing paperboard is at least one of food-grade white paperboard, food-grade white kraft paper, food-grade silicone oil paper, food-grade shea paper, food-grade laminating paper or food-grade hamburger paper.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451873B1 (en) * | 1998-07-07 | 2002-09-17 | Sun Chemical Corporation | Low VOC cationic curable lithographic printing inks |
| CN105754378A (en) * | 2016-03-23 | 2016-07-13 | 南召鑫泰钙业有限公司 | Calcium-based titanium dioxide and preparation process thereof |
| CN105820647A (en) * | 2016-04-20 | 2016-08-03 | 陕西科技大学 | Low-migration ink and preparation technology thereof |
| CN106147381A (en) * | 2016-09-14 | 2016-11-23 | 济南阿波罗文化用品有限公司 | The free radical that a kind of cure shrinkage is little/cation dual cure UV ink and preparation method thereof |
| CN113072836A (en) * | 2021-03-30 | 2021-07-06 | 中山市中益油墨涂料有限公司 | Low-migration ultraviolet curing ink and preparation method thereof |
-
2021
- 2021-07-23 CN CN202110838346.9A patent/CN113549367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451873B1 (en) * | 1998-07-07 | 2002-09-17 | Sun Chemical Corporation | Low VOC cationic curable lithographic printing inks |
| CN105754378A (en) * | 2016-03-23 | 2016-07-13 | 南召鑫泰钙业有限公司 | Calcium-based titanium dioxide and preparation process thereof |
| CN105820647A (en) * | 2016-04-20 | 2016-08-03 | 陕西科技大学 | Low-migration ink and preparation technology thereof |
| CN106147381A (en) * | 2016-09-14 | 2016-11-23 | 济南阿波罗文化用品有限公司 | The free radical that a kind of cure shrinkage is little/cation dual cure UV ink and preparation method thereof |
| CN113072836A (en) * | 2021-03-30 | 2021-07-06 | 中山市中益油墨涂料有限公司 | Low-migration ultraviolet curing ink and preparation method thereof |
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Application publication date: 20211026 |
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