CN113527943B - Antibacterial and antiviral alcohol-soluble printing ink containing EGCG and tipping paper prepared from printing ink - Google Patents
Antibacterial and antiviral alcohol-soluble printing ink containing EGCG and tipping paper prepared from printing ink Download PDFInfo
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- CN113527943B CN113527943B CN202010311028.2A CN202010311028A CN113527943B CN 113527943 B CN113527943 B CN 113527943B CN 202010311028 A CN202010311028 A CN 202010311028A CN 113527943 B CN113527943 B CN 113527943B
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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
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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
Abstract
The invention discloses an EGCG-containing antibacterial and antiviral alcohol-soluble printing ink and tipping paper prepared from the same, wherein the EGCG-containing antibacterial and antiviral alcohol-soluble printing ink is prepared from the following raw materials in percentage by weight: 15 to 20 percent of inorganic pigment, 10 to 15 percent of polyvinyl butyral (PVB) with the viscosity of 8 to 12 seconds, 30 to 35 percent of 95 percent edible ethanol, 1 to 3 percent of refined castor oil, 8 to 12 percent of gas phase white carbon black, 20 to 25 percent of titanium oxide, 0.3 to 0.5 percent of erucamide and 4 to 6 percent of synthetic antibacterial agent. The synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of atractylodes stearate and 1 part of EGCG, dissolving by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly. The raw materials adopted by the ink effectively ensure the use safety of the ink, the sterilizing effect on bacillus, escherichia coli and staphylococcus aureus can reach more than 90%, and the antibacterial components can be effectively released.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to printing ink for tipping paper and a preparation method thereof.
Background
The tipping paper is used as a part of the filter tip and is in direct contact with the oral cavity of a user, so that the cigarette is inevitably stained with pathogenic bacteria in the production, storage and transmission processes of smokers, and pathogenic bacteria and viruses possibly brought by the cigarette can pollute the outer surface of the tipping paper and cause health damage except for cigarette smoking in the case of storage under the condition of high temperature and humidity and the situation of grabbing the filter tip by unclean hands, and the cigarette is required to be endowed with antibacterial and antiviral functions. For traditional cigarettes, the packaging center of gravity of the last decade always centers on cultural excavation, structural innovation and decorative effect, and the emphasis is on novelty again, and people pay more and more attention to health. The novelty and special attention of traditional cigarette consumers to packaging gradually weaken, and instead, the emphasis is focused on packaging safety and product trust, namely cigarette packaging safety and product quality stability.
Epigallocatechin gallate (hereinafter abbreviated as EGCG) is a main component of green tea polyphenols, is also a main component of green tea catechins, and is a functional component with the highest activity and the highest content in catechins. According to the related reports of domestic research, EGCG can strongly bind to coronavirus S protein (Kd =121 nM) and effectively block the binding of coronavirus S protein and human ACE2 receptor. Meanwhile, the research process finds that the EGCG not only can prevent the mutual combination of the two, but also has the function of promoting the dissociation of the two on the S protein which is combined with the receptor. Meanwhile, the EGCG has the effects of strong antioxidant activity, in-vivo free radical removal, inflammation resistance, tumor resistance, arteriosclerosis resistance, thrombosis resistance and the like, has obvious inhibition and killing effects on pathogenic bacteria and viruses, and has good prospects in the development and application of the EGCG as a high-efficiency natural chemopreventive.
However, because the structure of EGCG contains a large number of active phenolic hydroxyl groups, the EGCG is easily oxidized into o-quinones and biphenol quinone substances by oxygen in the air, and the o-quinones further undergo complex polymerization and condensation reactions due to instability to form flavanols, theaflavins, thearubigin and the like, the stability is poor, the EGCG is easily degraded, the bioavailability is low, and the wide application of the EGCG is greatly influenced. In addition, because EGCG has poor fluidity and certain bitter taste, the EGCG is easy to discolor, stick and the like in shelf life, and is limited in the storage and application processes.
Currently, there are also researchers developing antibacterial tipping papers such as: the invention discloses special antibacterial water-based ink for tipping paper, 201510376321.6, which is prepared from the following components in parts by weight: 40 to 70 parts of acrylic resin liquid, 15 to 25 parts of pigment and filler, 5 to 15 parts of ethanol, 5 to 10 parts of deionized water, 1 part of wetting dispersant, 0.1 part of defoamer, 0 to 1 part of flatting agent and 0 to 1.5 parts of antibacterial assistant. The invention has excellent antibacterial and bactericidal performance, low VOC content and extremely low metal content and residue. The invention also discloses environment-friendly antibacterial water-based ink for tipping paper and lining paper for cigarettes and a preparation method thereof, namely 201910092869.6, which comprises the following components in percentage by weight: 12-18% of water-soluble resin liquid; 35-45% of solvent; 25-35% of composite antibacterial filler, wherein the composite antibacterial filler comprises nano titanium dioxide, a silver ion antibacterial agent, a chitosan-copper complex and soybean meal; 8-20% of pigment; 0-3% of auxiliary agent. However, no report that EGCG is applied to printing ink to achieve the antibacterial and antiviral functions is found.
Disclosure of Invention
The invention provides an antibacterial and antiviral alcohol-soluble printing ink containing EGCG, which can improve the stability of the EGCG, ensure that tipping paper printing ink has excellent ink property and stable performance, ensure safety, and simultaneously can effectively release antibacterial components and reduce the problems of plate pasting and plate blocking.
The technical scheme adopted by the invention for solving the technical problems is as follows: an antibacterial and antiviral alcohol-soluble printing ink containing EGCG is prepared from the following raw materials in percentage by weight: 15 to 20 percent of inorganic pigment, 10 to 15 percent of polyvinyl butyral (PVB) with the viscosity of 8 to 12 seconds, 30 to 35 percent of 95 percent edible ethanol, 1 to 3 percent of refined castor oil, 8 to 12 percent of fumed silica, 20 to 25 percent of titanium oxide, 0.3 to 0.5 percent of erucamide and 4 to 6 percent of synthetic antibacterial agent. The synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of atractylodes stearate and 1 part of EGCG, dissolving by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly.
Preferably, the feed additive is prepared from the following raw materials in percentage by weight: 20 percent of inorganic pigment, 10 to 15 percent of polyvinyl butyral (PVB) with the viscosity of 8 to 12 seconds, 30 percent of 95 percent edible ethanol, 1 to 3 percent of refined castor oil, 10 percent of fumed silica, 20 percent of titanium oxide, 0.3 percent of erucamide and 5 percent of synthetic antibacterial agent.
The inorganic pigment is one of food-grade ferric oxide toner, carbon black or food-grade titanium dioxide.
The iron oxide toner is selected from iron oxide toners such as iron oxide yellow and iron oxide red, but not limited to these two, and the above pigments are commercially available.
The preparation method of the antibacterial and antiviral alcohol-soluble ink containing EGCG comprises the following steps:
A. preparing the raw materials in proportion;
B. putting edible ethanol into an ink drawing cylinder;
C. stirring edible ethanol by a high-speed dispersion machine at the rotating speed of 380-420 r/min, slowly adding erucamide, continuously stirring for 10-20 min, adding polyvinyl butyral (PVB), increasing the rotating speed of the dispersion machine to 750-850 r/min, and stirring for 40-50 min to uniformly disperse the edible ethanol; sequentially adding fumed silica and titanium oxide, and continuously stirring until the mixture is uniformly mixed;
D. keeping the rotating speed unchanged, adding refined castor oil and continuously stirring for 5-10 minutes;
E. reducing the rotating speed to 380-420 r/min, adding the inorganic pigment in the formula, stirring for 15 min, increasing the rotating speed to 1100 r/min, performing dispersion stirring for 50 min, stopping stirring, and communicating an ink drawing cylinder with a sand mill;
F. grinding the fluid in the ink drawing cylinder twice by a grinding machine, and filtering pasty mixed liquid obtained by grinding to obtain the ink;
G. and D, before printing, adding the synthetic antibacterial agent into the printing ink obtained in the step F, and uniformly mixing to obtain the antibacterial and antiviral oil-soluble ink powder.
Preferably, the grinding machine in the step (F) is a horizontal grinding machine, and zirconia beads are used as grinding media, and the particle size is 1.0-1.2 mm.
The invention also provides tipping paper prepared from the EGCG-containing antibacterial and antiviral alcohol-soluble ink.
Polyvinyl butyral (PVB) is a high molecular polymer, is used for preparing a binder, has the characteristics of no toxicity, no odor, high transparency, excellent glossiness and strong tensile force, can resist atmospheric action and sunlight exposure, has strong oxidation resistance and ageing resistance, and simultaneously has good intersolubility with alcohol and dye, high dissolution speed, uniform polymerization degree and the like. The good water resistance combined with good antiblocking properties, good flow and excellent pigment wetting properties make the polyvinyl butyral resin series very suitable as binders for printing inks. The polyvinyl butyral resin is easily soluble in ethanol and has excellent adhesion.
The fumed silica is one of superfine inorganic materials, and has the advantages of large specific surface area, strong surface adsorption, large surface energy, high chemical purity, good dispersion performance, thermal resistance, electric resistance and the like due to small particle size, and has unique characteristics in various subjects and fields due to excellent stability, reinforcing property, thickening property and thixotropy, so that the fumed silica has an irreplaceable effect. The nano-silica is commonly called ultra-fine fumed silica and is widely used in various fields of additives, catalyst carriers, petrochemical industry, decolorants, flatting agents, rubber reinforcing agents, plastic fillers, ink thickeners, metal soft polishing agents, insulating and heat insulating fillers, high-grade daily cosmetic fillers and spraying materials, medicines, environmental protection and the like in various industries. And provides new material foundation and technical guarantee for the development of related industrial fields. The characteristics of the white carbon black by a gas phase method are as follows: 1. the thixotropic agent and the thickening agent are used as liquid, and the thixotropic agent and the thickening agent are prevented from precipitating and sagging; 2. the suspension property and the dispersibility of the pigment filler in a liquid system are improved; 3. as dispersing and grinding aids; 4. the corrosion resistance of the coating is improved; 5. the water resistance is improved; 6. the color brightness is improved; 7. fixing special effects; 8. the adhesive force and the flexibility of the paint film are improved; 9. the surface hardness of the coating is improved, and the coating is scratch resistant; 10. as adsorbents and carriers, and the like.
Refined castor oil: is easy to dissolve in ethanol, has much higher viscosity than common grease, and is typical non-drying liquid oil. The addition of refined castor oil to the vehicle can adjust the drying rate of the ink.
Erucamide is a white solid powder with a melting point of 94 ℃ (83 ℃). It is soluble in organic solvent such as hot alcohol and ether, and insoluble in water. The ink has the effects of smoothness, adhesion resistance and pollution resistance in the ink, delays the sedimentation and agglomeration of pigments and fillers, helps redispersion, increases the wear resistance and scratch resistance of printed products and the smoothness of the surface, and particularly improves the smoothness and the adhesion resistance in chromatography printing.
Atractylodes stearin is volatile oil extracted from dried rhizome of Chinese medicinal Atractylodes rhizome, and is mainly used as a fixative in foods and daily chemicals. The data show that the atractylodes lancea, the atractylis lancea extract, the atractylodes lancea mixture and the like have obvious inhibition effect on bacteria and fungi.
The invention has the following beneficial effects:
(1) the raw materials adopted by the method are dissolved in the edible ethanol, so that the smooth fusion of substance mixing and reaction and the use safety of the printing ink are ensured, and the residual quantity of the solvent on the printed matter is small, so that the health of printing ink production workers, printing workers and printing matter users is effectively prevented from being damaged by the printing ink or the organic solvent used for manufacturing the printing ink. The strong adhesive force of polyvinyl butyral (PVB) ensures that the PVB can be used as a carrier of inorganic pigment, and the inorganic pigment can be well existed and attached on the binder.
(2) The white carbon black and titanium oxide prepared by the vapor phase method are used as antibacterial fillers, have good dispersibility and compatibility with a base material, and can ensure that the pH of an ink system is slightly acidic, so that the stability of EGCG is effectively maintained, and the breeding and reproduction of bacteria can be effectively inhibited. The fumed silica is applied to an antibacterial material, functional ions such as silver ions and the like are uniformly designed into mesopores on the surface of the fumed silica by utilizing the huge specific surface area, the surface multi-mesoporous structure, the super-strong adsorption capacity and the singular physicochemical characteristics of the fumed silica, a natural organic antibacterial agent and an inorganic antibacterial agent are effectively combined and stably implemented, a synthetic antibacterial agent with high efficiency, durability, high temperature resistance and broad-spectrum antibacterial property is successfully developed, and the antibacterial capacity is obvious.
(3) The atractylodes rhizome stearin and the EGCG are natural antibacterial agents, have active substances with good antioxidant, anti-inflammatory and antitumor activities, are dissolved in ethanol, the ethanol is a good solvent, can be eaten and has multiple functions of disinfection and the like, and are loaded with the silver antibacterial agent which is a broad-spectrum antibacterial agent loaded with silver ions on an inorganic ion exchanger, and the inorganic silver antibacterial agent has stable physical and chemical properties and has excellent dyeing resistance and discoloration resistance in the processing process and the using process. The antibacterial effect can be achieved at a lower concentration, the transparency and the physical properties of a finished product are not obviously affected, and the safety is high. The three are prepared according to a certain proportion and are synthesized into the antibacterial agent together, and the antibacterial agent has the advantages of natural antibacterial agent and inorganic antibacterial agent: the antibacterial paint has the characteristics of high safety, heat resistance, durability, long antibacterial validity period, good persistence and good dispersibility in paint and printing ink. The refined castor oil and the erucamide can be dissolved in ethanol, the drying speed is regulated by the castor oil, the erucamide is a surfactant, can continuously migrate after the product is formed to form a surface ink layer on the surface of the product, the atractylodes stearate and the EGCG antibacterial active ingredients are effectively solidified in the ink surface film layer, and meanwhile, the printed tipping paper product has good smooth characteristic and good anti-adhesion property and can effectively release the antibacterial ingredients. The antibacterial and antiviral alcohol-soluble ink has the bactericidal effect of more than 90% on bacillus, escherichia coli and staphylococcus aureus.
Detailed Description
Example 1: an antibacterial and antiviral alcohol-soluble ink containing EGCG is prepared from the following raw materials in percentage by weight: 15% of iron oxide yellow, 13% of polyvinyl butyral (PVB) with the viscosity of 8-12 seconds, 31% of 95% edible ethanol, 2.6% of refined castor oil, 9% of fumed silica, 24% of titanium oxide, 0.4% of erucamide and 5% of synthetic antibacterial agent. The synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of rhizoma atractylodis stearin and 1 part of EGCG, dissolving the mixture by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly.
The preparation method of the antibacterial and antiviral alcohol-soluble ink containing EGCG comprises the following steps:
A. preparing raw materials in proportion;
B. putting edible ethanol into an ink drawing cylinder;
C. stirring edible ethanol by a high-speed dispersion machine at the rotating speed of 380-420 r/min, slowly adding erucamide, continuously stirring for 10-20 min, adding polyvinyl butyral (PVB), increasing the rotating speed of the dispersion machine to 750-850 r/min, and stirring for 40-50 min to uniformly disperse the edible ethanol; then, sequentially adding the fumed silica and the titanium oxide, and continuously stirring until the mixture is uniformly mixed;
D. keeping the rotating speed unchanged, adding refined castor oil and continuously stirring for 5-10 minutes;
E. reducing the rotating speed to 380-420 r/min, adding the inorganic pigment in the formula, stirring for 15 min, increasing the rotating speed to 1100 r/min, performing dispersion stirring for 50 min, stopping stirring, and communicating an ink drawing cylinder with a sand mill;
F. grinding the fluid in the ink drawing cylinder twice by a horizontal grinding machine, grinding zirconia beads with the particle size of 1.0-1.2 mm as grinding media, and filtering the pasty mixed solution obtained by grinding to obtain the ink.
G. And D, before printing, adding the synthetic antibacterial agent into the printing ink obtained in the step F, and uniformly mixing to obtain the antibacterial and antiviral oil-soluble ink powder.
Example 2: an antibacterial and antiviral alcohol-soluble ink containing EGCG is prepared from the following raw materials in percentage by weight: 20% of carbon black, 12% of polyvinyl butyral (PVB) with the viscosity of 8-12 seconds, 30% of 95% edible ethanol, 2.7% of refined castor oil, 10% of fumed silica, 20% of titanium oxide, 0.3% of erucamide and 5% of synthetic antibacterial agent. The synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of atractylodes stearate and 1 part of EGCG, dissolving by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly.
The preparation method of the antibacterial and antiviral alcohol-soluble ink containing EGCG comprises the following steps:
A. preparing raw materials in proportion;
B. putting edible ethanol into an ink drawing cylinder;
C. stirring edible ethanol by a high-speed dispersion machine at the rotating speed of 380-420 r/min, slowly adding erucamide, continuously stirring for 10-20 min, adding polyvinyl butyral (PVB), increasing the rotating speed of the dispersion machine to 750-850 r/min, and stirring for 40-50 min to uniformly disperse the edible ethanol; then, sequentially adding the fumed silica and the titanium oxide, and continuously stirring until the mixture is uniformly mixed;
D. keeping the rotating speed unchanged, adding refined castor oil and continuously stirring for 5-10 minutes;
E. reducing the rotating speed to 380-420 r/min, adding the inorganic pigment in the formula, stirring for 15 min, increasing the rotating speed to 1100 r/min, performing dispersion stirring for 50 min, stopping stirring, and communicating an ink drawing cylinder with a sand mill;
F. and grinding the fluid in the ink drawing cylinder twice by a grinding machine, and filtering pasty mixed liquid obtained by grinding to obtain the ink.
G. And D, before printing, adding the synthetic antibacterial agent into the printing ink obtained in the step F, and uniformly mixing to obtain the antibacterial and antiviral oil-soluble ink powder.
Example 3: an antibacterial and antiviral alcohol-soluble ink containing EGCG is prepared from the following raw materials in percentage by weight: 18% of food-grade titanium dioxide, 10% of polyvinyl butyral (PVB) with the viscosity of 8-12 seconds, 32% of 95% edible ethanol, 1.5% of refined castor oil, 12% of fumed silica, 20% of titanium oxide, 0.5% of erucamide and 6% of synthetic antibacterial agent. The synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of rhizoma atractylodis stearin and 1 part of EGCG, dissolving the mixture by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly.
The preparation method of the antibacterial and antiviral alcohol-soluble ink containing EGCG is the same as that of example 1.
Example 4: an antibacterial and antiviral alcohol-soluble printing ink containing EGCG is prepared from the following raw materials in percentage by weight: 16% of iron oxide red, 14% of polyvinyl butyral (PVB) with the viscosity of 8-12 seconds, 33% of 95% edible ethanol, 1.7% of refined castor oil, 8% of fumed silica, 23% of titanium oxide, 0.3% of erucamide and 4% of synthetic antibacterial agent. The synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of atractylodes stearate and 1 part of EGCG, dissolving by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly.
The preparation method of the antibacterial and antiviral alcohol-soluble ink containing EGCG is the same as that of example 2.
Examples 1-4 the results of the experiments are as follows:
from the table above, it can be seen that the cigarette tipping paper printed in examples 1-4 has an antibacterial effect of more than 90%, and the current standard antibacterial rate of the antibacterial tipping paper reaches more than 60%, i.e. the product is qualified.
Claims (3)
1. An antibacterial and antiviral alcohol-soluble printing ink containing EGCG is characterized by being prepared from the following raw materials in percentage by weight: 20% of inorganic pigment, 10-15% of polyvinyl butyral (PVB) with the viscosity of 8-12 seconds, 30% of 95% edible ethanol, 1-3% of refined castor oil, 10% of fumed silica, 20% of titanium oxide, 0.3% of erucamide and 5% of synthetic antibacterial agent; the synthetic antibacterial agent comprises the following components in parts by weight: mixing 0.5 part of rhizoma atractylodis stearin and 1 part of EGCG, dissolving the mixture by 6 parts of ethanol heated to 25 ℃, cooling, then adding 2.5 parts of silver-loaded antibacterial agent, and stirring uniformly;
the preparation method comprises the following steps:
A. preparing the raw materials in proportion;
B. putting edible ethanol into an ink drawing cylinder;
C. stirring edible ethanol by a high-speed dispersion machine at the rotating speed of 380-420 r/min, slowly adding erucamide, continuously stirring for 10-20 min, adding polyvinyl butyral (PVB), increasing the rotating speed of the dispersion machine to 750-850 r/min, and stirring for 40-50 min to uniformly disperse the edible ethanol; sequentially adding fumed silica and titanium oxide, and continuously stirring until the mixture is uniformly mixed;
D. keeping the rotating speed unchanged, adding refined castor oil and continuously stirring for 5-10 minutes;
E. reducing the rotating speed to 380-420 r/min, adding the inorganic pigment in the formula, stirring for 15 min, increasing the rotating speed to 1100 r/min, performing dispersion stirring for 50 min, stopping stirring, and communicating the ink drawing cylinder with a sand mill;
F. grinding the fluid in the ink drawing cylinder twice by a grinding machine, and filtering pasty mixed liquid obtained by grinding to obtain ink;
G. and D, before printing, adding the synthetic antibacterial agent into the printing ink obtained in the step F, and uniformly mixing to obtain the antibacterial and antiviral oil-soluble ink powder.
2. The antibacterial, antiviral alcohol-soluble ink comprising EGCG as claimed in claim 1 wherein: the inorganic pigment is one of food-grade ferric oxide toner, carbon black or food-grade titanium dioxide.
3. The EGCG-containing antibacterial, antiviral alcohol-soluble ink according to claim 2, wherein the iron oxide toner is selected from the group consisting of yellow iron oxide and red iron oxide.
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| CN113527943A (en) | 2021-10-22 |
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