CN118931295A - Ink-absorbing coating on the surface of PE film or PET aluminized film and preparation method thereof - Google Patents
Ink-absorbing coating on the surface of PE film or PET aluminized film and preparation method thereof Download PDFInfo
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/08—Homopolymers or copolymers of acrylic acid esters
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Abstract
The invention belongs to the technical field of printing paint, and discloses a PE film or PET aluminized film surface ink-absorbing paint and a preparation method thereof. The ink-absorbing paint comprises the following components in percentage by mass: 60-80% of acrylic resin emulsion binder, 8-20% of ink-absorbing filler, 1-5% of viscosity regulator, 1-4% of dispersant, 0.1-0.3% of defoamer and the balance of water; the ink absorbing filler is cyclodextrin compound modified porous silica. The invention adopts the cyclodextrin compound modified porous silica as the ink-absorbing filler, and can remarkably improve the ink-absorbing performance of the ink-absorbing coating and the combination effect of the ink-absorbing coating and the acrylic resin emulsion binder by utilizing the double adsorption effects of the chemical adsorption of the cyclodextrin compound and the physical adsorption of the porous silica, thereby improving the dispersion effect and the comprehensive performance of the ink-absorbing filler.
Description
Technical Field
The invention belongs to the technical field of printing coatings, and particularly relates to an ink-absorbing coating for the surface of a PE film or a PET aluminized film and a preparation method thereof.
Background
With the increase of demands of consumers for individuation and small-batch packaging, the use of digital printing is more and more widespread, and compared with the printing plate which is required to be customized and complicated by common gravure printing, the digital printing is not required to be plate-making, but has higher requirements on the ink absorbency of non-absorbent materials such as PE films or PET aluminized films and the like, and the ink-absorbing coating applied to the surface of the plastic films is generated.
The water-based ink-absorbing coating can quickly absorb ink or pigment, so that the printed pattern becomes clear and full, and the color reduction degree is higher and more vivid. This characteristic makes the aqueous ink-receptive coating excellent in high resolution printing requirements, meeting the stringent requirements of modern prints for color and definition.
At present, siO 2 has a porous structure and good whiteness, so that the SiO 2 is widely accepted in the market as an ink absorbent in an ink-absorbing coating, has high absorption speed and large absorption capacity on water-based ink, can improve the controllability of dot diameter and roundness of the dot, can reduce the scattering coefficient of the ink-absorbing layer, and can improve the concentration of images. As CN 116396650A discloses an ink-absorbing coating, the ink-absorbing coating comprises the following preparation raw materials in percentage by mass: 5 to 15 percent of composite resin emulsion, 1 to 2 percent of silicate, 15 to 30 percent of nano silicon dioxide, 0.4 to 0.6 percent of dispersing agent, 0.1 to 0.3 percent of defoaming agent and the balance of water, wherein the composite resin emulsion comprises 10 to 20 parts of acrylic ester emulsion, 5 to 12 parts of aqueous polyurethane emulsion and 2 to 8 parts of compatilizer. The ink-absorbing coating can improve the basic performance and ink-absorbing performance of the coating at the same time. However, the technology adopts the composite resin of acrylic ester and aqueous polyurethane to improve the basic performance of the coating, adopts a specific compatilizer to improve the compatibility, and needs to carry out complex pretreatment on the nano silicon dioxide particles to improve the dispersing effect. The corresponding component system and the preparation method are relatively complex.
Therefore, it is a technical problem to be solved by those skilled in the art to provide an ink-absorbing paint which has a simple component system, excellent coating properties, good adhesion to plastic films such as PE films or PET aluminized films, excellent ink-absorbing properties and excellent dispersion properties of ink-absorbing particles.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the primary aim of the invention is to provide an ink-absorbing paint for the surface of a PE film or a PET aluminized film.
The invention further aims at providing a preparation method of the PE film or PET aluminized film surface ink-absorbing coating.
The ink-absorbing coating is mainly applied to the surfaces of PE and aluminized PET substrates, and the film surface coated with the ink-absorbing coating can be suitable for digital ink-jet printing, has high definition of characters and patterns for digital printing and good adhesive force, and can also be suitable for the requirements of post-working procedures such as compounding, bag making and the like.
The invention aims at realizing the following technical scheme:
the PE film or PET aluminized film surface ink-absorbing coating comprises the following components in percentage by mass:
60-80% of acrylic resin emulsion binder, 8-20% of ink-absorbing filler, 1-5% of viscosity regulator, 1-4% of dispersant, 0.1-0.3% of defoamer and the balance of water;
The ink absorbing filler is cyclodextrin compound modified porous silica, and is prepared by the following method:
Heating and dissolving a cyclodextrin compound in an anhydrous solvent, then dropwise adding an isocyanate silane coupling agent for heat-preserving stirring reaction, adding porous silica micropowder after the reaction is completed, stirring and mixing uniformly, dropwise adding water for continuing the heat-preserving stirring reaction, and filtering, washing and drying a product to obtain the cyclodextrin compound modified porous silica.
Further, the cyclodextrin compound is cyclodextrin (including alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin), hydroxyethyl cyclodextrin, hydroxypropyl cyclodextrin, carboxymethyl cyclodextrin, amino cyclodextrin; the dosage of the cyclodextrin compound is 2-10% of the mass of the porous silica micropowder.
Further, the anhydrous solvent is DMF (N, N-dimethylformamide) or DMAC (N, N-dimethylacetamide).
Further, the isocyanato silane coupling agent is isocyanatopropyl trimethoxy silane or isocyanatopropyl triethoxy silane; the dosage of the isocyanate-based silane coupling agent is 1-5% of the mass of the porous silica micropowder.
Further, the porous silica micropowder is mesoporous (pore diameter is 2-50 nm) silica micropowder with the D50 particle diameter range of 2-5 μm. Which are conventional raw materials in the art.
Further, the temperature of the dropwise adding of the isocyanate-based silane coupling agent for heat preservation stirring reaction and the dropwise adding of water for continuous heat preservation stirring reaction is 50-80 ℃ for 2-6 h.
Further, the addition amount of the water is 3 to 5 times of the molar amount of the isocyanate-based silane coupling agent. The addition of a small amount of water can promote the hydrolysis of the coupling groups to form silanol, thereby promoting the surface modification reaction with the porous silica micropowder.
Further, the acrylic resin emulsion binder can be an aqueous acrylic resin emulsion prepared by copolymerizing a conventional (meth) acrylic monomer and a (meth) acrylic monomer. The acrylic ester monomer in the aqueous acrylic resin emulsion provides good water resistance, and the acrylic acid monomer improves the adhesion with a plastic film and the bonding effect with the cyclodextrin compound modified porous silica ink-absorbing filler by utilizing the polarity and hydrogen bond effect of the acrylic acid monomer.
Preferably, the acrylic resin emulsion vehicle is prepared by the following method:
1) Dissolving isocyanoethyl (meth) acrylate in an anhydrous solvent, adding a cyclodextrin compound, dissolving or dispersing uniformly, heating to 50-80 ℃ for stirring reaction, and spray-drying after the reaction is completed to obtain an acrylate modified cyclodextrin compound cross-linking agent;
2) Adding a (methyl) acrylic acid monomer, an acrylic acid ester modified cyclodextrin compound cross-linking agent and an emulsifying agent into deionized water, and stirring and emulsifying to obtain emulsion; then heating to 60-90 ℃, and dripping initiator solution to perform polymerization reaction to obtain the acrylic resin emulsion binder.
Further, the cyclodextrin compound in step 1) is cyclodextrin (including α -cyclodextrin, β -cyclodextrin, γ -cyclodextrin), hydroxyethyl cyclodextrin, hydroxypropyl cyclodextrin, carboxymethyl cyclodextrin, amino cyclodextrin; the anhydrous solvent is DMF or DMAC.
Further, the molar ratio of the isocyanoethyl (meth) acrylate to the cyclodextrin compound added in step 1) is 2-6:1.
Further, the (meth) acrylate monomer in the step 2) is methyl acrylate, ethyl acrylate, butyl acrylate, isooctyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate; the mass ratio of the (methyl) acrylic acid monomer to the acrylic acid ester modified cyclodextrin compound crosslinking agent is 1 (0.2-0.8) to 0.1-0.3.
Further, in the step 2), the emulsifier is sodium alkyl sulfonate, sodium alkyl benzene sulfonate, alkylphenol ethoxylates, fatty alcohol ethoxylates; the addition amount of the emulsifier is 1-4% of the total mass of the (methyl) acrylic acid monomer, (methyl) acrylic acid monomer and the acrylic acid ester modified cyclodextrin compound crosslinking agent.
Further, the initiator in the step 2) is ammonium persulfate, sodium persulfate or potassium persulfate.
Further, the viscosity modifier is ethanol or isopropanol; the dispersing agent is polyvinyl alcohol; the defoamer is a di-high TEGO Foamex-825 defoamer.
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
And uniformly stirring and mixing the acrylic resin emulsion binder, the viscosity regulator, the dispersing agent and the water, then adding the ink-absorbing filler, uniformly stirring and dispersing, finally adding the defoaming agent, uniformly mixing, and standing to obtain the PE film or PET aluminized film surface ink-absorbing coating.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts the cyclodextrin compound modified porous silica as the ink-absorbing filler, and can obviously improve the ink-absorbing performance of the ink-absorbing coating by utilizing the double adsorption effects of chemical adsorption of the cyclodextrin compound and physical adsorption of the porous silica. And meanwhile, the cyclodextrin compound modification of the porous silica can improve the combination effect of the porous silica and the acrylic resin emulsion binder and the dispersion effect of the ink-absorbing filler.
(2) The invention further adopts the acrylic resin emulsion crosslinked by the cyclodextrin compound as the binder, so that the coating strength and the water resistance can be further improved. Meanwhile, the cyclodextrin compound crosslinking unit can provide a large number of polar groups, and can remarkably improve the adhesive force with plastic films such as PE films or PET aluminized films. Finally, the acrylic resin emulsion binder crosslinked by the cyclodextrin compound can further improve the combination effect of the acrylic resin emulsion binder and the cyclodextrin compound modified porous silica ink-absorbing filler, thereby improving the comprehensive performance of the coating.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Example 1
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
(1) Preparation of ink-absorbing filler
Heating and dissolving hydroxyethyl-beta-cyclodextrin (with the average molecular substitution degree of 7) in an anhydrous DMF solvent at 70 ℃, then dropwise adding an isocyanatopropyl triethoxysilane coupling agent for heat preservation and stirring reaction for 3 hours, and adding porous silica micropowder (mesoporous silica with the particle size range of 2-5 mu m) after the reaction is completed, and stirring and mixing uniformly. The dosage of the hydroxyethyl-beta-cyclodextrin is 6% of the mass of the porous silica micropowder, and the dosage of the isocyanatopropyl triethoxysilane is 3% of the mass of the porous silica micropowder. And then deionized water with the mol weight of4 times of that of the isocyanic acid propyl triethoxy silane is dripped, the reaction is continued to be carried out for 2 hours under heat preservation and stirring, and the product is filtered, washed with deionized water and ethanol in turn and dried in vacuum, thus obtaining the hydroxyethyl-beta-cyclodextrin modified porous silica ink-absorbing filler.
(2) Preparation of acrylic emulsion vehicle
Adding butyl acrylate, methyl methacrylate, acrylic acid and sodium dodecyl benzene sulfonate serving as an emulsifier into deionized water according to a mass ratio of 70:30:50:4, and stirring and emulsifying to obtain emulsion; then heating to 70 ℃, and dropwise adding ammonium persulfate initiator solution with the total weight of 0.2% of the monomer to carry out polymerization reaction for 4 hours to obtain the acrylic resin emulsion binder with the solid content of 46%.
(3) Preparation of ink-absorbing paint
According to the weight percentage, the 70% acrylic resin emulsion binder, 2% isopropanol, 2% polyvinyl alcohol dispersant and 10.8% deionized water are stirred and mixed uniformly, then 15% ink-absorbing filler is added, stirred and dispersed uniformly, finally 0.2% TEGO Foamex-825 defoamer is added, mixed uniformly, and the PE film or PET aluminized film surface ink-absorbing paint is obtained after standing.
The ink-absorbing paint obtained in this example was subjected to adhesion fastness (according to GB/T13217.7-2023), water resistance (48 h in warm water at 48 ℃ C., adhesion fastness tested after drying at 80 ℃ C.), ink absorbency (ink absorbency value tested according to GB 12911-91 after coating 5g/m 2 (dry paste) ink-absorbing paint on the surface of PE film or PET aluminized film, respectively), stability (10 min after centrifugation at 3000r/min, and whether precipitation or delamination occurred was observed). The test results show that the adhesion fastness on the PE film or PET aluminized film printing substrate is 95%; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 88 percent, and the adhesion fastness on the PET aluminized film printing substrate is 85 percent; the ink absorbency test result shows that the ink absorbency value on the PE film printing substrate is 39%, and the ink absorbency value on the PET aluminized film printing substrate is 40%; the stability test results showed no precipitation or delamination.
Example 2
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
(1) Preparation of ink-absorbing filler
The beta-cyclodextrin is heated and dissolved in anhydrous DMF solvent at 70 ℃, then the isocyanic acid propyl triethoxy silane coupling agent is dripped to carry out heat preservation and stirring reaction for 3 hours, and after the reaction is completed, porous silica micropowder (mesoporous silica with the particle size range of 2-5 mu m) is added to be stirred and mixed uniformly. The dosage of the beta-cyclodextrin is 2% of the mass of the porous silica micropowder, and the dosage of the isocyanatopropyl triethoxysilane is 1% of the mass of the porous silica micropowder. And then deionized water with the mol weight of 6 times of that of the isocyanic acid propyl triethoxy silane is dripped, the heat preservation and stirring reaction is continued for 2 hours, and the product is filtered, washed sequentially by the deionized water and ethanol and dried in vacuum, so that the beta-cyclodextrin modified porous silica ink-absorbing filler is obtained.
(2) Preparation of acrylic emulsion vehicle
Adding butyl acrylate, ethyl methacrylate, methacrylic acid and alkylphenol ethoxylates serving as emulsifying agents into deionized water according to the mass ratio of 60:40:80:5, and stirring and emulsifying to obtain emulsion; then heating to 70 ℃, and dropwise adding ammonium persulfate initiator solution with the total weight of 0.2% of the monomer to carry out polymerization reaction for 4 hours to obtain the acrylic resin emulsion binder with the solid content of 45%.
(3) Preparation of ink-absorbing paint
According to the weight percentage, the 80% acrylic resin emulsion binder, 2% isopropanol, 2% polyvinyl alcohol dispersant and 7.8% deionized water are stirred and mixed uniformly, then 8% ink-absorbing filler is added, stirred and dispersed uniformly, finally 0.2% TEGO Foamex-825 defoamer is added, mixed uniformly, and the PE film or PET aluminized film surface ink-absorbing paint is obtained after standing.
The ink-absorbing paint obtained in the embodiment has the adhesion fastness of 95% on a PE film printing substrate and 96% on a PET aluminized film printing substrate through test; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 84 percent, and the adhesion fastness on the PET aluminized film printing substrate is 83 percent; the ink absorbency test result shows that the ink absorbency values on the PE film and the PET aluminized film printing substrate are 28%; the stability test results showed no precipitation or delamination.
Example 3
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
(1) Preparation of ink-absorbing filler
Heating and dissolving hydroxypropyl-beta-cyclodextrin (with average molecular substitution degree of 5.2) in anhydrous DMF solvent at 70 ℃, then dripping isocyanatopropyl trimethoxy silane coupling agent for heat preservation and stirring reaction for 3 hours, and adding porous silica micropowder (mesoporous silica with particle size range of 2-5 μm) after the reaction is completed, stirring and mixing uniformly. The dosage of the hydroxypropyl-beta-cyclodextrin is 10% of the mass of the porous silica micropowder, and the dosage of the isocyanatopropyl trimethoxysilane is 5% of the mass of the porous silica micropowder. And then deionized water with the molar weight 3 times of that of the isocyanic acid propyl trimethoxy silane is dropwise added, the reaction is continued under heat preservation and stirring for 2 hours, and the product is filtered, washed with deionized water and ethanol in turn and dried in vacuum, so that the hydroxypropyl-beta-cyclodextrin modified porous silica ink-absorbing filler is obtained.
(2) Preparation of acrylic emulsion vehicle
Adding butyl acrylate, methyl methacrylate, acrylic acid and sodium dodecyl benzene sulfonate serving as an emulsifier into deionized water according to the mass ratio of 70:30:20:5, and stirring and emulsifying to obtain emulsion; then heating to 70 ℃, and dropwise adding ammonium persulfate initiator solution with the total weight of 0.2% of the monomer to carry out polymerization reaction for 4 hours to obtain the acrylic resin emulsion binder with the solid content of 48%.
(3) Preparation of ink-absorbing paint
According to the weight percentage, the 60% acrylic resin emulsion binder, 2% isopropanol, 2% polyvinyl alcohol dispersant and 15.8% deionized water are stirred and mixed uniformly, then 20% ink-absorbing filler is added, stirred and dispersed uniformly, finally 0.2% TEGO Foamex-825 defoamer is added, mixed uniformly, and the PE film or PET aluminized film surface ink-absorbing paint is obtained after standing.
The ink-absorbing paint obtained in the embodiment has the adhesion fastness of 93% on a PE film printing substrate and 94% on a PET aluminized film printing substrate through test; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 87 percent and the adhesion fastness on the PET aluminized film printing substrate is 88 percent; the ink absorbency test result shows that the ink absorbency value on the PE film printing substrate is 46 percent, and the ink absorbency value on the PET aluminized film printing substrate is 49 percent; the stability test results showed no precipitation or delamination.
Example 4
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
(1) The ink receptive filler was prepared as in example 1.
(2) Preparation of acrylic emulsion vehicle
1) Dissolving isocyanoethyl methacrylate in DMF solvent, adding hydroxyethyl-beta-cyclodextrin (average molecular substitution degree is 7) for dissolving uniformly, adding the isocyanoethyl methacrylate and the hydroxyethyl-beta-cyclodextrin in a molar ratio of 2:1, heating to 70 ℃, stirring for reacting for 3h, and spray drying after the reaction is completed to obtain the acrylic ester modified cyclodextrin compound crosslinking agent.
2) Adding butyl acrylate, methyl methacrylate, acrylic acid, an acrylic ester modified cyclodextrin compound cross-linking agent and an emulsifier sodium dodecyl benzene sulfonate into deionized water according to the mass ratio of 70:30:50:30:4, stirring and emulsifying to obtain emulsion; then heating to 70 ℃, and dropwise adding ammonium persulfate initiator solution with the total weight of 0.2% of the monomer to carry out polymerization reaction for 4 hours to obtain the acrylic resin emulsion binder with the solid content of 46%.
(3) The ink-receptive coating was prepared as in example 1.
The ink-absorbing paint obtained in the embodiment has the adhesion fastness of 100% on PE film and PET aluminized film printing base materials through test; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 95 percent, and the adhesion fastness on the PET aluminized film printing substrate is 92 percent; the ink absorbency test result shows that the ink absorbency value on the PE film printing substrate is 51 percent, and the ink absorbency value on the PET aluminized film printing substrate is 52 percent; the stability test results showed no precipitation or delamination.
Example 5
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
(1) The ink receptive filler was prepared as in example 1.
(2) Preparation of acrylic emulsion vehicle
1) Dissolving isocyanoethyl acrylate in DMF solvent, adding beta-cyclodextrin to dissolve and disperse uniformly, adding methyl isocyanoethyl acrylate and beta-cyclodextrin in a molar ratio of 4:1, heating to 70 ℃, stirring and reacting for 3h, and spray drying after the reaction is completed to obtain the acrylic ester modified cyclodextrin compound cross-linking agent.
2) Adding butyl acrylate, methyl methacrylate, acrylic acid, an acrylic ester modified cyclodextrin compound cross-linking agent and an emulsifier sodium dodecyl benzene sulfonate into deionized water according to the mass ratio of 70:30:50:20:4, stirring and emulsifying to obtain emulsion; then heating to 70 ℃, and dropwise adding ammonium persulfate initiator solution with the total weight of 0.2% of the monomer to carry out polymerization reaction for 4 hours to obtain the acrylic resin emulsion binder with the solid content of 46%.
(3) The ink-receptive coating was prepared as in example 1.
The ink-absorbing paint obtained in the embodiment has the adhesion fastness of 100% on PE film and PET aluminized film printing base materials through test; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 96 percent and the adhesion fastness on the PET aluminized film printing substrate is 94 percent; the ink absorbency test result shows that the ink absorbency values on the PE film and the PET aluminized film printing substrate are 48%; the stability test results showed no precipitation or delamination.
Example 6
The preparation method of the PE film or PET aluminized film surface ink-absorbing coating comprises the following preparation steps:
(1) The ink receptive filler was prepared as in example 1.
(2) Preparation of acrylic emulsion vehicle
1) Dissolving isocyanoethyl methacrylate in DMF solvent, adding hydroxypropyl-beta-cyclodextrin (average molecular substitution degree is 5.2) for uniform dissolution, adding the isocyanoethyl methacrylate and the hydroxyethyl-beta-cyclodextrin in a molar ratio of 6:1, heating to 70 ℃, stirring for reaction for 3h, and spray drying after the reaction is completed to obtain the acrylic ester modified cyclodextrin compound cross-linking agent.
2) Adding butyl acrylate, methyl methacrylate, acrylic acid, an acrylic ester modified cyclodextrin compound cross-linking agent and an emulsifier sodium dodecyl benzene sulfonate into deionized water according to the mass ratio of 70:30:50:10:4, stirring and emulsifying to obtain emulsion; then heating to 70 ℃, and dropwise adding ammonium persulfate initiator solution with the total weight of 0.2% of the monomer to carry out polymerization reaction for 4 hours to obtain the acrylic resin emulsion binder with the solid content of 46%.
(3) The ink-receptive coating was prepared as in example 1.
The ink-absorbing paint obtained in the embodiment has the adhesion fastness of 100% on PE film and PET aluminized film printing base materials through test; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 94%, and the adhesion fastness on the PET aluminized film printing substrate is 93%; the ink absorbency test result shows that the ink absorbency value on the PE film printing substrate is 44 percent, and the ink absorbency value on the PET aluminized film printing substrate is 45 percent; the stability test results showed no precipitation or delamination.
As can be seen from the comparison of the above examples 4 to 6 and example 1, the invention can further and remarkably improve the adhesion fastness and water resistance of the obtained ink-absorbing coating on PE film and PET aluminized film printing substrates by further introducing the acrylic acid ester modified cyclodextrin compound cross-linking agent into the acrylic resin emulsion binder. And has obvious effect on improving ink absorption performance.
Comparative example 1
Compared with the embodiment 1, the preparation method of the PE film or PET aluminized film surface ink-absorbing coating adopts equivalent unmodified porous silica micropowder (mesoporous silica with the particle size range of 2-5 μm) to replace hydroxyethyl-beta-cyclodextrin modified porous silica ink-absorbing filler, and the rest are the same.
The ink-absorbing paint obtained in the comparative example has the adhesion fastness of 91% on a PE film printing substrate and 90% on a PET aluminized film printing substrate; the water resistance test result shows that the adhesion fastness on the PE film printing substrate is 81 percent and the adhesion fastness on the PET aluminized film printing substrate is 79 percent; the ink absorbency test result shows that the ink absorbency values on the PE film and the PET aluminized film printing substrate are 33%; the stability test results showed that significant micropowders precipitated.
As can be seen from the comparison of comparative example 1 with example 1, the stability of the ink-receptive coating can be significantly improved by surface modification of the silica ink-receptive filler with the cyclodextrin compound. Meanwhile, the chemical adsorption property of the cyclodextrin compound can further synergistically improve the ink absorption effect of the coating. And the adhesive force and the water resistance of the coating on plastic films such as PE films or PET aluminized films can be further improved by introducing a large amount of polar groups into the cyclodextrin compound and performing hydrogen bond effect with acrylic acid units in the acrylic resin emulsion binder.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (10)
1. The PE film or PET aluminized film surface ink-absorbing coating is characterized by comprising the following components in percentage by mass:
60-80% of acrylic resin emulsion binder, 8-20% of ink-absorbing filler, 1-5% of viscosity regulator, 1-4% of dispersant, 0.1-0.3% of defoamer and the balance of water;
The ink absorbing filler is cyclodextrin compound modified porous silica, and is prepared by the following method:
Heating and dissolving a cyclodextrin compound in an anhydrous solvent, then dropwise adding an isocyanate silane coupling agent for heat-preserving stirring reaction, adding porous silica micropowder after the reaction is completed, stirring and mixing uniformly, dropwise adding water for continuing the heat-preserving stirring reaction, and filtering, washing and drying a product to obtain the cyclodextrin compound modified porous silica.
2. The PE film or PET aluminized film surface ink-absorbing coating according to claim 1, wherein the cyclodextrin compound is cyclodextrin, hydroxyethyl cyclodextrin, hydroxypropyl cyclodextrin, carboxymethyl cyclodextrin, amino cyclodextrin; the dosage of the cyclodextrin compound is 2-10% of the mass of the porous silica micropowder; the anhydrous solvent is DMF or DMAC.
3. The PE film or PET aluminized film surface ink-absorbing coating according to claim 1, wherein the isocyanate-based silane coupling agent is isocyanatopropyl trimethoxysilane or isocyanatopropyl triethoxysilane; the dosage of the isocyanate silane coupling agent is 1-5% of the mass of the porous silica micropowder; the porous silica micropowder is mesoporous silica micropowder with the D50 particle diameter range of 2-5 mu m.
4. The PE film or PET aluminized film surface ink-absorbing coating according to claim 1, wherein the temperature of the dropwise adding isocyanate silane coupling agent for heat preservation stirring reaction and the temperature of the dropwise adding water for continuous heat preservation stirring reaction are 50-80 ℃ for 2-6 h; the addition amount of the water is 3-5 times of the molar amount of the isocyanate-based silane coupling agent.
5. The PE film or PET aluminized film surface ink-absorbing coating according to claim 1, wherein the acrylic resin emulsion binder is prepared by the following method:
1) Dissolving isocyanoethyl (meth) acrylate in an anhydrous solvent, adding a cyclodextrin compound, dissolving or dispersing uniformly, heating to 50-80 ℃ for stirring reaction, and spray-drying after the reaction is completed to obtain an acrylate modified cyclodextrin compound cross-linking agent;
2) Adding a (methyl) acrylic acid monomer, an acrylic acid ester modified cyclodextrin compound cross-linking agent and an emulsifying agent into deionized water, and stirring and emulsifying to obtain emulsion; then heating to 60-90 ℃, and dripping initiator solution to perform polymerization reaction to obtain the acrylic resin emulsion binder.
6. The PE film or PET aluminized film surface ink-absorbing coating according to claim 5, wherein the molar ratio of the isocyanoethyl (meth) acrylate to the cyclodextrin compound in the step 1) is 2-6:1.
7. The PE film or PET aluminized film surface ink-absorbing coating according to claim 5, wherein the (meth) acrylic monomer in the step 2) is methyl acrylate, ethyl acrylate, butyl acrylate, isooctyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate; the mass ratio of the (methyl) acrylic acid monomer to the acrylic acid ester modified cyclodextrin compound crosslinking agent is 1 (0.2-0.8) to 0.1-0.3.
8. The PE film or PET aluminized film surface ink-absorbing coating according to claim 5, wherein the emulsifier in the step 2) is sodium alkyl sulfonate, sodium alkyl benzene sulfonate, alkylphenol ethoxylate, fatty alcohol ethoxylate; the addition amount of the emulsifier is 1-4% of the total mass of the (methyl) acrylic acid monomer, (methyl) acrylic acid monomer and the acrylic acid modified cyclodextrin compound crosslinking agent; the initiator is ammonium persulfate, sodium persulfate or potassium persulfate.
9. The PE film or PET aluminized film surface ink-absorbing coating according to claim 1, wherein the viscosity regulator is ethanol or isopropanol; the dispersing agent is polyvinyl alcohol; the defoamer is a di-high TEGO Foamex-825 defoamer.
10. The preparation method of the PE film or PET aluminized film surface ink-absorbing coating as claimed in any one of claims 1 to 9, which is characterized by comprising the following preparation steps:
And uniformly stirring and mixing the acrylic resin emulsion binder, the viscosity regulator, the dispersing agent and the water, then adding the ink-absorbing filler, uniformly stirring and dispersing, finally adding the defoaming agent, uniformly mixing, and standing to obtain the PE film or PET aluminized film surface ink-absorbing coating.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013245A (en) * | 2012-12-27 | 2013-04-03 | 肇庆新丰环保材料有限公司 | Water-based waterproof paint and preparation method and application thereof |
| CN105368258A (en) * | 2015-11-27 | 2016-03-02 | 沈阳顺风新城建筑材料有限公司 | Cyclodextrin aqueous anticorrosive paint and preparation method thereof |
| CN106590223A (en) * | 2016-11-28 | 2017-04-26 | 南通华润新材料有限公司 | Matte, waterproof and ink-absorbing coating and preparation method thereof |
| CN109942859A (en) * | 2019-03-01 | 2019-06-28 | 徐炜 | A kind of preparation method of film printing coating |
| CN114015298A (en) * | 2021-12-16 | 2022-02-08 | 上海绘兰材料科技有限公司 | Water-resistant ink-absorbing coating material and preparation method and application thereof |
| CN116218281A (en) * | 2023-04-13 | 2023-06-06 | 江西科态新材料科技有限公司 | Environment-friendly film water-based ink and preparation method thereof |
| CN118006213A (en) * | 2024-01-24 | 2024-05-10 | 武汉弘毅共聚新材料科技有限公司 | Preparation method of environment-friendly spray painting printing base coat |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013245A (en) * | 2012-12-27 | 2013-04-03 | 肇庆新丰环保材料有限公司 | Water-based waterproof paint and preparation method and application thereof |
| CN105368258A (en) * | 2015-11-27 | 2016-03-02 | 沈阳顺风新城建筑材料有限公司 | Cyclodextrin aqueous anticorrosive paint and preparation method thereof |
| CN106590223A (en) * | 2016-11-28 | 2017-04-26 | 南通华润新材料有限公司 | Matte, waterproof and ink-absorbing coating and preparation method thereof |
| CN109942859A (en) * | 2019-03-01 | 2019-06-28 | 徐炜 | A kind of preparation method of film printing coating |
| CN114015298A (en) * | 2021-12-16 | 2022-02-08 | 上海绘兰材料科技有限公司 | Water-resistant ink-absorbing coating material and preparation method and application thereof |
| CN116218281A (en) * | 2023-04-13 | 2023-06-06 | 江西科态新材料科技有限公司 | Environment-friendly film water-based ink and preparation method thereof |
| CN118006213A (en) * | 2024-01-24 | 2024-05-10 | 武汉弘毅共聚新材料科技有限公司 | Preparation method of environment-friendly spray painting printing base coat |
Non-Patent Citations (1)
| Title |
|---|
| 朱奥琦;谢水波;司子彦;刘迎久;莫官海;: "β-环糊精改性介孔二氧化硅材料对U(Ⅵ)的去除机制", 原子能科学技术, no. 10 * |
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