CN115612341A - Green and environment-friendly printing ink for medical packaging bags and preparation method thereof - Google Patents
Green and environment-friendly printing ink for medical packaging bags and preparation method thereof Download PDFInfo
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- CN115612341A CN115612341A CN202211359466.1A CN202211359466A CN115612341A CN 115612341 A CN115612341 A CN 115612341A CN 202211359466 A CN202211359466 A CN 202211359466A CN 115612341 A CN115612341 A CN 115612341A
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000007639 printing Methods 0.000 title claims abstract description 18
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000000227 grinding Methods 0.000 claims abstract description 29
- 239000012860 organic pigment Substances 0.000 claims abstract description 28
- 229920002635 polyurethane Polymers 0.000 claims abstract description 23
- 239000004814 polyurethane Substances 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 19
- -1 perfluorooctyl sulfonic acid amine Chemical class 0.000 claims description 14
- 229920000728 polyester Polymers 0.000 claims description 12
- 239000000049 pigment Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000004658 ketimines Chemical class 0.000 claims description 6
- 150000002576 ketones Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000001003 triarylmethane dye Substances 0.000 claims description 6
- 150000004645 aluminates Chemical class 0.000 claims description 5
- 238000000265 homogenisation Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 abstract description 9
- 239000002904 solvent Substances 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract description 5
- 231100000331 toxic Toxicity 0.000 abstract description 5
- 230000002588 toxic effect Effects 0.000 abstract description 5
- 238000009395 breeding Methods 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 4
- 239000003242 anti bacterial agent Substances 0.000 abstract description 3
- 150000002894 organic compounds Chemical class 0.000 abstract description 3
- HNGDCKBWRHWCMU-UHFFFAOYSA-N N,N,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-nonadecafluorooctan-1-amine Chemical compound FN(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F HNGDCKBWRHWCMU-UHFFFAOYSA-N 0.000 abstract 1
- 230000000844 anti-bacterial effect Effects 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 50
- 239000006224 matting agent Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000005764 inhibitory process Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000036541 health Effects 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000006193 diazotization reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- 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
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
-
- 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
Abstract
The invention relates to the technical field of environment-friendly printing ink, in particular to environment-friendly printing ink for a medical packaging bag and a preparation method thereof, wherein the environment-friendly printing ink for the medical packaging bag comprises the following components: organic pigment, waterborne polyurethane, deionized water, ethyl acetate, flatting agent, perfluorooctyl amine sulfonate and isothiazolinone; the preparation method of the green environment-friendly ink for the medical packaging bag comprises the following steps: s1: grinding; s2: homogenizing; s3, mixing; the adhesion of the ink product can be effectively improved, the ink cannot easily fall off when printed on a medical packaging bag, the volatilization of toxic organic compounds is greatly reduced by adopting the water-based ink compared with solvent-based ink, the safety is better, and in addition, the long-acting broad-spectrum antibacterial agent is added, so that the ink has the antibacterial and mildewproof functions, the influence of bacteria breeding in a humid environment on the use of medical drugs can be avoided, the preparation process is simple, and the cost is low.
Description
Technical Field
The invention relates to the technical field of environment-friendly printing ink, in particular to environment-friendly printing ink for a medical packaging bag and a preparation method thereof.
Background
Ink is an important material for printing, and is used for expressing patterns and characters on a printing stock by printing or painting. The ink comprises a main component and an auxiliary component which are uniformly mixed and repeatedly rolled to form a viscous colloidal fluid. For the ink, color, body (rheological property of ink such as thin consistency and fluidity is generally called as body of ink) and drying performance are the three most important properties of ink, and attention should be paid to developing ink formulation and process and producing ink; the printed film on the printed matter should have a certain resistance to make the printed matter have practical use. The preparation of the spot color ink, the control of the ink consumption, the full utilization of the residual ink and the like are mastered, so that the material can be saved, and the method plays an important role in reducing the ink cost. The traditional solvent type ink contains volatile organic compounds, pollution can be generated in the production and use processes, the volatile organic compounds usually contain certain toxicity, the traditional solvent type ink is not suitable for printing products with high requirements on health and toxicity, such as printing of medical packaging bags, the traditional solvent type ink is used on the medical packaging bags, the ink is required to have good adhesiveness, printing characters are prevented from falling off in the use process, difficulty is brought to product identification, meanwhile, the traditional solvent type ink also has the characteristics of safety, no toxicity, bacteria resistance and mildew resistance, on one hand, the toxic components are prevented from influencing the body health of a user, and on the other hand, the situation that bacteria are bred in the humid environment to influence the use of medical drugs is avoided.
Disclosure of Invention
The invention aims to provide green and environment-friendly ink for a medical packaging bag and a preparation method thereof, and aims to solve the problems that the ink used on the medical packaging bag in the background technology requires good adhesiveness to prevent printed characters from falling off in the using process and bringing difficulty to product identification, and the ink also has the characteristics of safety, no toxicity, bacteria resistance and mildew resistance, so that on one hand, the toxic components are prevented from influencing the body health of a user, and on the other hand, the ink is prevented from breeding bacteria in a humid environment to influence the use of medical drugs.
In order to achieve the purpose, the invention provides the following technical scheme: the green environment-friendly printing ink for the medical packaging bag comprises the following components in parts by weight:
organic pigment: 10-20 parts; aqueous polyurethane: 50-60 parts; deionized water: 10-20 parts; ethyl acetate: 5-10 parts; a matting agent: 2-4 parts; perfluorooctyl sulfonic acid amine: 0.2-0.5 part; isothiazolinone: 0.3-0.6 part.
Preferably, the organic pigment is one of a triarylmethane dye or a phthalocyanine pigment.
Preferably, the waterborne polyurethane is prepared from aromatic isocyanate by a ketimine/ketone diazotization method, and the average particle size of the waterborne polyurethane is as follows: 0.001-0.1 μm.
Preferably, the matting agent comprises a pure polyester matting agent and a polymethylurea resin, and the proportion of the pure polyester matting agent to the polymethylurea resin is 1.
A preparation method of green and environment-friendly ink for medical packaging bags comprises the following steps:
s1: grinding: weighing the required organic pigment, adding 1 part of grinding aid, putting into a dispersion kettle, fully dispersing and uniformly stirring, and transferring the dispersed raw materials to a grinding machine for grinding.
S2: homogenizing: weighing and proportioning the waterborne polyurethane, the deionized water and the ethyl acetate, and then adding the mixture into a high-pressure homogenizer for homogenization, wherein the pressure of the high-pressure homogenizer is controlled as follows: 20000psi-26000 psi.
S3, mixing: and (3) adding the pigment in the step (S1) and the mixed liquid in the step (S2) into the dispersion kettle again, stirring for 20-30 minutes, cooling, and adding perfluorooctyl sulfonic acid amine and isothiazolinone into the dispersion kettle to fully and uniformly disperse by using the dispersion kettle.
Preferably, the grinding times of the organic pigment in the step S1 are 2-3 times, whether the fineness of the organic pigment reaches below 10um is measured, and if not, the grinding is continued until the fineness reaches the requirement.
Preferably, the grinding aid in step S1 is aluminate.
Preferably, the cooling temperature in the step S3 is controlled to be 40-50 ℃, and the motor speed of the dispersion kettle in the step S3 is controlled to be about 500-800 rpm.
Compared with the prior art, the invention has the beneficial effects that: the green environment-friendly ink for the medical packaging bag and the preparation method thereof can effectively improve the adhesiveness of an ink product, can improve the wear resistance and the stretchability of a printing font in the using process, cannot easily fall off when being printed on the medical packaging bag, greatly reduces the volatilization of toxic organic compounds by adopting the water-based ink compared with solvent-based ink, has better safety, is added with a long-acting broad-spectrum antibacterial agent, enables the ink to have the functions of resisting bacteria and preventing mildew, can prevent the ink from breeding bacteria in a humid environment to influence the use of medical drugs, and has simple preparation process and low cost.
Drawings
FIG. 1 is a flow chart of the preparation method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a technical scheme that: the green environment-friendly printing ink for the medical packaging bag comprises the following components in parts by weight:
organic pigment: 10-20 parts; aqueous polyurethane: 50-60 parts; deionized water: 10-20 parts; ethyl acetate: 5-10 parts; a flatting agent: 2-4 parts; amine perfluorooctyl sulfonate: 0.2-0.5 part; isothiazolinone: 0.3-0.6 part of organic pigment, wherein the organic pigment is one of triarylmethane dye or phthalocyanine pigment, the waterborne polyurethane is prepared from aromatic isocyanate by a ketimine/ketone diazotization method, and the average particle size of the waterborne polyurethane is as follows: 0.001-0.1 micron, wherein the flatting agent comprises a pure polyester flatting agent and polymethyl urea resin, and the proportion of the pure polyester flatting agent to the polymethyl urea resin is 1.
Referring to fig. 1, the present invention further provides a method for preparing an environment-friendly ink for medical packaging bags, comprising:
example 1
The preparation method of the green environment-friendly ink for the medical packaging bag comprises the following steps:
s1: grinding: weighing the required organic pigment, adding 1 part of grinding aid into the dispersion kettle, fully dispersing and uniformly stirring the grinding aid by using aluminate, transferring the dispersed raw materials to a grinder for grinding, and grinding the fineness of the organic pigment to about 20 um.
S2: homogenizing: the waterborne polyurethane, the deionized water and the ethyl acetate are weighed and proportioned, and then added into a high-pressure homogenizer for homogenization, wherein the pressure of the high-pressure homogenizer is controlled at 20000psi.
S3, mixing: and (3) adding the pigment in the step (S1) and the mixed liquid in the step (S2) into the dispersion kettle again, stirring for 30 minutes, cooling to 40 ℃, adding perfluorooctyl sulfonic acid amine and isothiazolinone into the dispersion kettle, and fully and uniformly dispersing by using the dispersion kettle, wherein the motor speed of the dispersion kettle is controlled at 500 revolutions.
In this example, the organic pigment: 10 parts of organic pigment, wherein the organic pigment is one of triarylmethane dye or phthalocyanine pigment, and the weight ratio of waterborne polyurethane: 50 parts of a binder; the waterborne polyurethane is prepared from aromatic isocyanate by a ketimine/ketone nitrogen coupling method, and the average particle size of the waterborne polyurethane is as follows: 0.1 micron, deionized water: 10 parts of a binder; ethyl acetate: 5 parts of a mixture; a flatting agent: 2 parts of a matting agent, wherein the matting agent comprises a pure polyester matting agent and a polymethylurea resin, the proportion of the pure polyester matting agent to the polymethylurea resin is 1: 0.2 part; isothiazolinone: 0.3 part.
Example 2
The preparation method of the green environment-friendly ink for the medical packaging bag comprises the following steps:
s1: grinding: weighing the required organic pigment, adding 1 part of grinding aid, putting into a dispersion kettle, fully dispersing and uniformly stirring the grinding aid by using aluminate, transferring the dispersed raw materials to a grinder for grinding, and grinding the fineness of the organic pigment to about 15 mu m.
S2: homogenizing: the waterborne polyurethane, the deionized water and the ethyl acetate are weighed and proportioned, and then added into a high-pressure homogenizer for homogenization, and the pressure of the high-pressure homogenizer is controlled at 23000psi.
S3, mixing: and (3) adding the pigment in the step (S1) and the mixed liquid in the step (S2) into the dispersion kettle again, stirring for 30 minutes, cooling to 45 ℃, adding perfluorooctyl sulfonic acid amine and isothiazolinone into the dispersion kettle, and fully and uniformly dispersing by using the dispersion kettle, wherein the motor speed of the dispersion kettle is controlled at 700 revolutions.
In this example, the organic pigment: 15 parts of organic pigment is one of triarylmethane dye or phthalocyanine pigment, and the waterborne polyurethane: 55 parts of waterborne polyurethane, which is prepared from aromatic isocyanate by a ketimine/ketone azotization method, and has an average particle size of: 0.1 micron, deionized water: 15 parts of a mixture; ethyl acetate: 8 parts of a mixture; a matting agent: 3 parts, the flatting agent comprises a pure polyester flatting agent and polymethyl urea resin, and the proportion of the pure polyester flatting agent to the polymethyl urea resin is 1: 0.4 part; isothiazolinone: 0.4 part.
Example 3
The preparation method of the green environment-friendly ink for the medical packaging bag comprises the following steps:
s1: grinding: weighing the required organic pigment, adding 1 part of grinding aid, putting into a dispersion kettle, fully dispersing and uniformly stirring the grinding aid by using aluminate, transferring the dispersed raw materials to a grinder for grinding, and grinding the fineness of the organic pigment to about 10 mu m.
S2: homogenizing: the waterborne polyurethane, the deionized water and the ethyl acetate are weighed and proportioned, and then added into a high-pressure homogenizer for homogenization, wherein the pressure of the high-pressure homogenizer is controlled at 26000psi.
S3, mixing: and (3) adding the pigment in the step (S1) and the mixed liquid in the step (S2) into the dispersion kettle again, stirring for 30 minutes, cooling to 50 ℃, adding perfluorooctyl sulfonic acid amine and isothiazolinone into the dispersion kettle, and fully and uniformly dispersing by using the dispersion kettle, wherein the motor speed of the dispersion kettle is controlled at 800 revolutions.
In this example, the organic pigment: 20 parts of organic pigment, wherein the organic pigment is one of triarylmethane dye or phthalocyanine pigment, and the weight ratio of waterborne polyurethane: 60 parts; the waterborne polyurethane is prepared from aromatic isocyanate by a ketimine/ketone nitrogen coupling method, and the average particle size of the waterborne polyurethane is as follows: 0.1 micron, deionized water: 20 parts of a binder; ethyl acetate: 10 parts of a binder; a flatting agent: 4 parts, the flatting agent comprises a pure polyester flatting agent and polymethyl urea resin, the proportion of the pure polyester flatting agent to the polymethyl urea resin is 1: 0.5 part; isothiazolinone: 0.6 part.
The inks prepared in examples 1-3 were tested for adhesion and antimicrobial properties at the same ambient temperature and the results are shown in the following table:
| serial number | Temperature of | Tackiness property | Fineness of fineness | Inhibition of microbial indicator (diameter of bacteriostatic ring) |
| Example 1 | 25℃ | 96 | 20um | 13mm |
| Example 2 | 25℃ | 97 | 15um | 15mm |
| Example 3 | 25℃ | 98 | 10um | 18mm |
In the above data, the adhesion test method is as follows: ink tack (tack) is the force against which the ink coating separates, and the resistance torque to separation or tearing of the ink film is measured under rotation using an ink tack meter model YQM-1, expressed as the magnitude of the moment arm, the meter only giving the relative magnitude of this force, and therefore without dimension, in units of 1, expressed numerically.
The method for testing the microorganism inhibition indexes comprises the following steps: and (3) diffusing the ink to be detected in the agar plate to inhibit the growth of bacteria around the agar plate to form a transparent ring, namely an inhibition ring, and judging the inhibition effect of the ink to be detected according to the size of the inhibition ring.
By integrating the above embodiments, the green and environment-friendly ink for medical packaging bags and the preparation method thereof can effectively improve the adhesiveness of ink products, improve the wear resistance and the stretchability of printed fonts in the using process, ensure that the ink does not easily fall off when printed on the medical packaging bags, greatly reduce the volatilization of toxic organic compounds by adopting the water-based ink compared with solvent-based ink, have better safety, and are added with the long-acting broad-spectrum antibacterial agent, so that the ink has the functions of antibiosis and mould prevention, can prevent the medical drugs from being influenced by bacteria breeding in a humid environment, and has simple preparation process and low cost.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The green environment-friendly printing ink for the medical packaging bag is characterized in that: the green environment-friendly printing ink for the medical packaging bag comprises the following components in parts by weight:
organic pigment: 10-20 parts; aqueous polyurethane: 50-60 parts; deionized water: 10-20 parts; ethyl acetate: 5-10 parts; a flatting agent: 2-4 parts; perfluorooctyl sulfonic acid amine: 0.2-0.5 part; isothiazolinone: 0.3-0.6 part.
2. The green environmental-friendly ink for medical packaging bags according to claim 1, which is characterized in that: the organic pigment is one of triarylmethane dye or phthalocyanine pigment.
3. The green environmental-friendly ink for medical packaging bags according to claim 1, characterized in that: the waterborne polyurethane is prepared from aromatic isocyanate by a ketimine/ketone nitrogen-linking method, and the average particle size of the waterborne polyurethane is as follows: 0.001-0.1 μm.
4. The green environmental-friendly ink for medical packaging bags according to claim 1, which is characterized in that: the flatting agent comprises a pure polyester flatting agent and polymethyl urea resin, and the proportion of the pure polyester flatting agent to the polymethyl urea resin is 1.
5. A preparation method of green environment-friendly ink for medical packaging bags is characterized by comprising the following steps: the preparation method of the green environment-friendly ink for the medical packaging bag comprises the following steps:
s1: grinding: weighing the required organic pigment, adding 1 part of grinding aid, putting into a dispersion kettle, fully dispersing and uniformly stirring, and transferring the dispersed raw materials to a grinding machine for grinding.
S2: homogenizing: weighing and proportioning the waterborne polyurethane, the deionized water and the ethyl acetate, and then adding the mixture into a high-pressure homogenizer for homogenization, wherein the pressure of the high-pressure homogenizer is controlled as follows: 20000psi-26000 psi.
S3, mixing: and (3) adding the pigment in the step (S1) and the mixed liquid in the step (S2) into the dispersion kettle again, stirring for 20-30 minutes, cooling, and adding perfluorooctyl sulfonic acid amine and isothiazolinone into the dispersion kettle to fully and uniformly disperse by using the dispersion kettle.
6. The method for preparing the green and environment-friendly ink for the medical packaging bag as claimed in claim 5, wherein the method comprises the following steps: and (2) grinding the organic pigment in the step (S1) for 2-3 times, measuring whether the fineness of the organic pigment reaches below 20um, and if not, continuing to grind until the fineness reaches the requirement.
7. The method for preparing the green and environment-friendly ink for the medical packaging bag as claimed in claim 5, wherein the method comprises the following steps: the grinding aid in the step S1 is aluminate.
8. The method for preparing the green and environment-friendly ink for the medical packaging bag as claimed in claim 5, wherein the method comprises the following steps: and the cooling temperature of the step S3 is controlled to be 40-50 ℃, and the motor speed of the dispersion kettle in the step S3 is controlled to be about 500-800 r/m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211359466.1A CN115612341A (en) | 2022-11-02 | 2022-11-02 | Green and environment-friendly printing ink for medical packaging bags and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211359466.1A CN115612341A (en) | 2022-11-02 | 2022-11-02 | Green and environment-friendly printing ink for medical packaging bags and preparation method thereof |
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| EP2110395A1 (en) * | 2008-04-18 | 2009-10-21 | Bayer MaterialScience AG | Aqueous polyurethane solutions for polyurethane systems |
| CN102618117A (en) * | 2012-03-25 | 2012-08-01 | 重庆宏图油墨有限公司 | Single-liquid environment-friendly universal compound printing ink and preparation method for same |
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Application publication date: 20230117 |