CN111234596A - Self-cleaning ultraviolet light curing water-based ink and preparation method thereof - Google Patents
Self-cleaning ultraviolet light curing water-based ink and preparation method thereof Download PDFInfo
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- 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
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Abstract
The invention discloses self-cleaning ultraviolet light curing water-based ink which comprises the following raw materials in percentage by mass: 10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%. The invention also discloses a preparation method of the ultraviolet light curing water-based ink, which comprises the steps of sequentially preparing the UV light curing precursor and the diluent, adding the UV light curing precursor, the diluent and the oligomer into the solvent, stirring uniformly, sequentially adding the pigment, the auxiliary agent and the photoinitiator, and stirring uniformly to obtain the ultraviolet light curing water-based ink. Solves the problems of slower ultraviolet light curing speed, high viscosity, poor adhesive force, poor waterproof property, easy pollution and difficult self-cleaning of the ultraviolet light curing water-based ink in the prior art.
Description
Technical Field
The invention belongs to the technical field of printing and copying, relates to self-cleaning ultraviolet light curing water-based ink, and further relates to a preparation method of the self-cleaning ultraviolet light curing water-based ink.
Background
UV (ultraviolet curing) water-based ink is formed by polymerizing monomers in an ink binder into a polymer or crosslinking and polymerizing a diluent and a precursor under ultraviolet irradiation by using ultraviolet light with different wavelengths and energies, and then drying the ink. The main components of the coating are polymeric prepolymer, photosensitive curing precursor and photoinitiator, and the auxiliary components are coloring pigment, filler, additive (flatting agent, dispersant) and the like. The UV water-based ink has the advantages of strong color matching capability, good wear resistance, scratch resistance, good glossiness and the like, does not contain volatile organic solvent, and accords with the current trend of green printing.
However, UV inks still have the following problems: (1) most of monomers used in the UV ink are low-functional group number monomers, so that the photocuring speed of the UV ink is low; (2) the viscosity of the UV ink is high, and the cleaning is difficult; (3) the penetration force of the UV ink to the pigment and the thicker coating is poor, so that the problems of incomplete ink curing and poor adhesion are easily caused; (4) UV inks do not have the properties of being water-resistant, corrosion-resistant, anti-icing, anti-smudging, and resistant to biological and organic solvent contamination, and are difficult to self-clean in many special situations.
Disclosure of Invention
The invention aims to provide a self-cleaning type ultraviolet light curing water-based ink, which solves the problems of low light curing speed, high viscosity, poor adhesion, poor waterproofness, easy pollution and difficult self-cleaning of the ultraviolet light curing water-based ink in the prior art.
The invention also aims to provide a preparation method of the self-cleaning ultraviolet light curing water-based ink, which solves the problems of slow light curing speed, high viscosity, poor adhesion, poor water resistance, easy pollution and difficult self cleaning of the ultraviolet light curing water-based ink in the prior art.
The invention adopts a technical scheme that the self-cleaning ultraviolet light curing water-based ink is composed of the following raw materials in percentage by mass: 10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%.
The invention is also characterized in that:
the UV photocuring precursor is composed of a raw material A and a raw material B, wherein the molar ratio of the raw material A to the raw material B is 1-7: 5-10;
the raw material A consists of hydroxyethyl methacrylate and trifluoroacetic acid, wherein the molar ratio of the hydroxyethyl methacrylate to the trifluoroacetic acid is 2-4: 6-8;
the raw material B is a styrene/acrylic acid/glycidyl methacrylate copolymer, and the molar ratio of the styrene to the acrylic acid to the glycidyl methacrylate is 2-4: 2-4: 2 to 4.
The oligomer is any one of polyacrylic acid, polymethacrylic acid, polyglycidyl methacrylate, polyglycidyl acrylate and polyhydroxyethyl methacrylate.
The diluent consists of glycidyl methacrylate and a raw material C, wherein the raw material C is any one of ethylenediamine, N-ethylethylenediamine, tetraethylenepentamine and triethylene tetramine, and the molar ratio of the raw material C to the glycidyl methacrylate is 1: 3 to 7.
The pigment is methyl orange; the auxiliary agent is defoaming agent GPE 10.
The photoinitiator is any one of 2-isopropyl thioxanthone, trimethyl benzoyl-diphenyl phosphine oxide and 2-hydroxy-2-methyl propiophenone.
The solvent consists of water, ethanol and DMF, and the volume ratio of the water to the ethanol to the DMF is 5: 3: 2.
the invention adopts another technical scheme that the preparation method of the self-cleaning type ultraviolet light curing water-based ink is implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate are mixed according to a molar ratio of 2-4: 2-4: 2-4, adding an initiator, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
mixing a raw material A and a raw material B in a molar ratio of 1-7: 5-10, adding a catalyst, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
And (3) mixing glycidyl methacrylate and the raw material C in a molar ratio of 1: 3-7, adding a catalyst, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
and 4, adding the UV photocuring precursor, the diluent and the oligomer into the solvent, stirring uniformly, sequentially adding the pigment, the auxiliary agent and the photoinitiator, and stirring uniformly to obtain the UV photocuring water-based ink.
The other technical scheme of the invention is also characterized in that:
the catalyst is triethanolamine and is 2 to 5 percent of the total mass of all the raw materials in the step 3; the initiator is azobisisobutyronitrile, and the initiator accounts for 2-5% of the total mass of all the raw materials in the step 3.
The raw material A consists of hydroxyethyl methacrylate and trifluoroacetic acid, wherein the molar ratio of the hydroxyethyl methacrylate to the trifluoroacetic acid is 2-4: 6-8.
The invention has the beneficial effects that:
the invention relates to self-cleaning ultraviolet photocuring water-based ink which is prepared by reacting any one of ethylenediamine, N-ethylethylenediamine, tetraethylenepentamine and triethylene tetramine with glycidyl methacrylate to obtain a polyfunctional group diluent containing 3-7C ═ C double bonds, wherein a UV photocuring precursor and the polyfunctional group diluent containing 3-7C ═ C double bonds can be rapidly polymerized under ultraviolet light, and the curing is carried out for 0.5-5 seconds under an LED type UV surface light source controller, so that the curing time is greatly shortened, and the double bond conversion rate is 50-91%; in addition, the double bond functional groups of the UV photocuring precursor and the diluent are more in number, so that the viscosity of the obtained UV photocuring water-based ink is lower; because the trifluoroethyl ester in the UV photocuring precursor has low surface energy, the image-text part of a printed product printed by the UV photocuring water-based ink has the characteristics of hydrophobicity, acid and alkali resistance, water washing resistance, strong adhesive force, self-cleaning property and wider application range.
The preparation method of the self-cleaning ultraviolet light curing water-based ink disclosed by the invention has the advantages that the raw materials are less, and the preparation cost is greatly reduced; according to the ultraviolet photocuring water-based ink disclosed by the invention, the image-text part of a printed product printed by the ultraviolet photocuring water-based ink has the characteristics of hydrophobic property, acid and alkali resistance, water washing resistance and strong adhesive force; the ultraviolet light curing water-based ink disclosed by the invention is low in price, convenient in material obtaining, high in light curing speed, high in production efficiency, high in light curing speed, low in viscosity, stable in ink property, bright in color, free of corrosion to plates and good in adhesive force after printing.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention provides self-cleaning ultraviolet light curing water-based ink which comprises the following raw materials in percentage by mass: 10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%.
Preferably, the UV photocuring precursor consists of a raw material A and a raw material B, wherein the molar ratio of the raw material A to the raw material B is 1-7: 5-10; the raw material A consists of hydroxyethyl methacrylate and trifluoroacetic acid, wherein the molar ratio of the hydroxyethyl methacrylate to the trifluoroacetic acid is 2-4: 6-8; the raw material B is a styrene/acrylic acid/glycidyl methacrylate copolymer, and the molar ratio of the styrene to the acrylic acid to the glycidyl methacrylate is 2-4: 2-4: 2 to 4.
Wherein trifluoroacetic acid is replaced by heptafluorobutyric acid, namely the raw material A consists of hydroxyethyl methacrylate and heptafluorobutyric acid, and the molar ratio of the hydroxyethyl methacrylate to the heptafluorobutyric acid is 2-4: 6-8.
Preferably, the oligomer is any one of polyacrylic acid, polymethacrylic acid, polyglycidyl methacrylate, polyglycidyl acrylate, and polyhydroxyethyl methacrylate.
Preferably, the diluent consists of glycidyl methacrylate and a raw material C, the raw material C is any one of ethylenediamine, N-ethylethylenediamine, tetraethylenepentamine and triethylene tetramine, and the molar ratio of the raw material C to the glycidyl methacrylate is 1: 3 to 7.
Preferably, the pigment is methyl orange; the auxiliary agent is defoaming agent GPE 10. The photoinitiator is any one of 2-isopropyl thioxanthone, trimethyl benzoyl-diphenyl phosphine oxide and 2-hydroxy-2-methyl propiophenone. The solvent consists of water, ethanol and DMF, and the volume ratio of the water to the ethanol to the DMF is 5: 3: 2.
the invention also provides a preparation method of the self-cleaning ultraviolet light curing water-based ink, which is implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate are mixed according to a molar ratio of 2-4: 2-4: 2-4, adding an initiator, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
mixing a raw material A and a raw material B in a molar ratio of 1-7: 5-10, adding a catalyst, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
And (3) mixing glycidyl methacrylate and the raw material C in a molar ratio of 1: 3-7, adding a catalyst, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
and 4, adding the UV photocuring precursor, the diluent and the oligomer into the solvent, stirring uniformly, sequentially adding the pigment, the auxiliary agent and the photoinitiator, and stirring uniformly to obtain the UV photocuring water-based ink.
Wherein the catalyst is triethanolamine, and the catalyst accounts for 2-5% of the total mass of all the raw materials in the step 3; the initiator is azobisisobutyronitrile, and the initiator accounts for 2-5% of the total mass of all the raw materials in the step 3.
The raw material A consists of hydroxyethyl methacrylate and trifluoroacetic acid, wherein the molar ratio of the hydroxyethyl methacrylate to the trifluoroacetic acid is 2-4: 6-8.
Example 1
A preparation method of self-cleaning ultraviolet light curing water-based ink is specifically implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate were mixed in a molar ratio of 2: 2: 2, mixing, adding azobisisobutyronitrile, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
hydroxyethyl methacrylate and trifluoroacetic acid are added in a molar ratio of 3: 7, and mixing with the raw material B in a molar ratio of 1: 5, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
Mixing ethylenediamine, glycidyl methacrylate and ethylene glycol in a molar ratio of 1: 4, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
10% of UV photocuring precursor, 10% of oligomer, 5% of methyl orange, 30% of diluent, 105% of defoaming agent GPE, 5% of photoinitiator and 35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
wherein, in the steps 1 and 2, the triethanolamine accounts for 2 percent of the total mass of all the raw materials; in the step 1, the azodiisobutyronitrile accounts for 3 percent of the total mass of all the raw materials;
step 4, mixing water, ethanol and DMF according to a volume ratio of 5: 3: 2, uniformly mixing, adding the UV photocuring precursor, the diluent and the polyacrylic acid, uniformly stirring, sequentially adding methyl orange, a defoaming agent GPE10 and 2-isopropyl thioxanthone, and uniformly stirring to obtain the ultraviolet photocuring water-based ink.
The prepared ultraviolet light curing water-based ink is uniformly coated on a glass sheet to form a film with the thickness of 20 microns, and the film is placed under an LED type UV surface light source controller for curing for 5 seconds, wherein the double bond conversion rate is 70%. The contact angle of water on the surface of the glass sheet coated with the ultraviolet light-curable water-based ink was 123 degrees, and after rinsing with water for 10 times, the contact angle was unchanged. The ultraviolet light curing water-based ink of the embodiment has good self-cleaning capability.
Example 2
A preparation method of self-cleaning ultraviolet light curing water-based ink is specifically implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate were mixed in a molar ratio of 2: 3: 4, mixing, adding azobisisobutyronitrile, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
hydroxyethyl methacrylate and trifluoroacetic acid are added in a molar ratio of 2: 8, mixing with the raw material B in a molar ratio of 3: 8, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
Mixing N-ethyl ethylene diamine and glycidyl methacrylate in a molar ratio of 1: 3, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
20% of UV photocuring precursor, 20% of oligomer, 8% of methyl orange, 20% of diluent, 105% of defoaming agent GPE, 2% of photoinitiator and 25% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
wherein, in the steps 1 and 2, the triethanolamine accounts for 4 percent of the total mass of all the raw materials; in the step 1, the azodiisobutyronitrile accounts for 5 percent of the total mass of all the raw materials;
step 4, mixing water, ethanol and DMF according to a volume ratio of 5: 3: 2, uniformly mixing, adding the UV photocuring precursor, the diluent and the polymethacrylic acid, uniformly stirring, sequentially adding methyl orange, a defoaming agent GPE10 and trimethyl benzoyl-diphenyl phosphine oxide, and uniformly stirring to obtain the ultraviolet photocuring water-based ink.
The prepared ultraviolet light curing water-based ink is uniformly coated on a glass sheet to form a film with the thickness of 20 microns, and the film is placed under an LED type UV surface light source controller for curing for 1 second, wherein the double bond conversion rate is 82%. The contact angle of water on the surface of the glass sheet coated with the ultraviolet light-curable water-based ink was 143 degrees, and after rinsing with water for 10 times, the contact angle was unchanged. It is demonstrated that the UV light curable aqueous ink of the present example has good self-cleaning ability and is stronger than the UV light curable aqueous ink of example 1 in self-cleaning ability.
Example 3
A preparation method of self-cleaning ultraviolet light curing water-based ink is specifically implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate were mixed in a molar ratio of 4: 3: 3, mixing, adding azobisisobutyronitrile, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
hydroxyethyl methacrylate and trifluoroacetic acid were added in a molar ratio of 4: 6, and mixing with the raw material B in a molar ratio of 7: 10, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
Mixing tetraethylenepentamine and glycidyl methacrylate in a molar ratio of 1: 7, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
30% of UV photocuring precursor, 20% of oligomer, 6% of methyl orange, 20% of diluent, 105% of defoaming agent GPE, 4% of photoinitiator and 15% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
wherein, in the steps 1 and 2, the triethanolamine accounts for 5 percent of the total mass of all the raw materials; in the step 1, the azodiisobutyronitrile accounts for 3 percent of the total mass of all the raw materials;
step 4, mixing water, ethanol and DMF according to a volume ratio of 5: 3: 2, uniformly mixing, adding the UV photocuring precursor, the diluent and the poly glycidyl methacrylate, uniformly stirring, sequentially adding methyl orange, a defoaming agent GPE10 and 2-hydroxy-2-methyl propiophenone, and uniformly stirring to obtain the ultraviolet photocuring water-based ink.
The prepared ultraviolet light curing water-based ink is uniformly coated on a glass sheet to form a film with the thickness of 20 microns, and the film is placed under an LED type UV surface light source controller for curing for 0.5 second, wherein the double bond conversion rate is 90%. The contact angle of water on the surface of the glass sheet coated with the ultraviolet light-curable water-based ink was 153 ℃, and after rinsing with water for 10 times, the contact angle was unchanged. It is demonstrated that the UV light curable aqueous ink of the present example has good self-cleaning ability and is stronger than the UV light curable aqueous ink of example 2 in self-cleaning ability.
Example 4
A preparation method of self-cleaning ultraviolet light curing water-based ink is specifically implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate were mixed in a molar ratio of 3: 4: 4, mixing, adding azobisisobutyronitrile, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
hydroxyethyl methacrylate and trifluoroacetic acid are added in a molar ratio of 2: 8, and mixing with the raw material B in a molar ratio of 7: 10, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
Triethylene tetramine and glycidyl methacrylate are mixed according to a molar ratio of 1: 6, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
15% of UV photocuring precursor, 15% of oligomer, 7% of methyl orange, 30% of diluent, 105% of defoaming agent GPE, 3% of photoinitiator and 25% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
wherein, in the steps 1 and 2, the triethanolamine accounts for 2 percent of the total mass of all the raw materials; in the step 1, the azodiisobutyronitrile accounts for 4 percent of the total mass of all the raw materials;
step 4, mixing water, ethanol and DMF according to a volume ratio of 5: 3: 2, uniformly mixing, adding the UV photocuring precursor, the diluent and the poly (glycidyl acrylate), uniformly stirring, sequentially adding methyl orange, a defoaming agent GPE10 and 2-isopropyl thioxanthone, and uniformly stirring to obtain the ultraviolet photocuring water-based ink.
The prepared ultraviolet light curing water-based ink is uniformly coated on a glass sheet to form a film with the thickness of 20 microns, and the film is placed under an LED type UV surface light source controller for curing for 0.5 second, wherein the double bond conversion rate is 85 percent. The contact angle of water on the surface of the glass sheet coated with the ultraviolet light-curable water-based ink was measured to be 146 degrees, and after rinsing with water for 10 times, the contact angle was unchanged. It is demonstrated that the UV light curable aqueous ink of the present example has good self-cleaning ability, and the self-cleaning ability is equivalent to that of the UV light curable aqueous ink of example 2.
Example 5
A preparation method of self-cleaning ultraviolet light curing water-based ink is specifically implemented according to the following steps:
step 1, preparing a UV photocuring precursor
Styrene, acrylic acid and glycidyl methacrylate were mixed in a molar ratio of 3: 2: 4, mixing, adding azobisisobutyronitrile, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
hydroxyethyl methacrylate and trifluoroacetic acid were added in a molar ratio of 4: 7, and mixing with the raw material B in a molar ratio of 4: 9, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
Triethylene tetramine and glycidyl methacrylate are mixed according to a molar ratio of 1: 4, mixing, adding triethanolamine, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
25% of UV photocuring precursor, 15% of oligomer, 10% of methyl orange, 10% of diluent, 105% of defoaming agent GPE, 1% of photoinitiator and 34% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
wherein, in the steps 1 and 2, the triethanolamine accounts for 2 percent of the total mass of all the raw materials; in the step 1, the azodiisobutyronitrile accounts for 2 percent of the total mass of all the raw materials;
step 4, mixing water, ethanol and DMF according to a volume ratio of 5: 3: 2, uniformly mixing, adding the UV photocuring precursor, the diluent and the polyhydroxyethyl methacrylate, uniformly stirring, sequentially adding methyl orange, a defoaming agent GPE10 and 2-isopropyl thioxanthone, and uniformly stirring to obtain the ultraviolet photocuring water-based ink.
The prepared ultraviolet light curing water-based ink is uniformly coated on a glass sheet to form a film with the thickness of 20 microns, and the film is placed under an LED type UV surface light source controller for curing for 0.5 second, wherein the double bond conversion rate is 91%. The contact angle of water on the surface of the glass sheet coated with the ultraviolet light-curable water-based ink was 139 degrees, and after rinsing with water for 10 times, the contact angle was unchanged. It is demonstrated that the UV light curable aqueous ink of the present example has good self-cleaning ability, and is comparable to the self-cleaning ability of the UV light curable aqueous ink of example 1.
Claims (10)
1. The self-cleaning ultraviolet light curing water-based ink is characterized by comprising the following raw materials in percentage by mass: 10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%.
2. The self-cleaning ultraviolet light curing water-based ink as claimed in claim 1, wherein the UV light curing precursor is composed of a raw material A and a raw material B, and the molar ratio of the raw material A to the raw material B is 1-7: 5-10;
the raw material A consists of hydroxyethyl methacrylate and trifluoroacetic acid, wherein the molar ratio of the hydroxyethyl methacrylate to the trifluoroacetic acid is (2-4): 6-8;
the raw material B is a styrene/acrylic acid/glycidyl methacrylate copolymer, and the molar ratio of the styrene to the acrylic acid to the glycidyl methacrylate is 2-4: 2-4: 2 to 4.
3. The self-cleaning ultraviolet light curable water-based ink according to claim 1, wherein the oligomer is any one of polyacrylic acid, polymethacrylic acid, polyglycidyl methacrylate, polyglycidyl acrylate and polyhydroxyethyl methacrylate.
4. The self-cleaning ultraviolet light curing water-based ink as claimed in claim 1, wherein the diluent is composed of glycidyl methacrylate and a raw material C, the raw material C is any one of ethylenediamine, N-ethylethylenediamine, tetraethylenepentamine and triethylenetetramine, and the molar ratio of the raw material C to the glycidyl methacrylate is 1: 3 to 7.
5. The self-cleaning ultraviolet light curable water-based ink according to claim 1, wherein the pigment is methyl orange; the auxiliary agent is defoaming agent GPE 10.
6. The self-cleaning ultraviolet light curable water-based ink according to claim 1, wherein the photoinitiator is any one of 2-isopropyl thioxanthone, trimethylbenzoyl-diphenylphosphine oxide and 2-hydroxy-2-methyl propiophenone.
7. The self-cleaning ultraviolet light curing water-based ink as claimed in claim 1, wherein the solvent is composed of water, ethanol and DMF, and the volume ratio of the water, the ethanol and the DMF is 5: 3: 2.
8. the preparation method of the self-cleaning ultraviolet light curing water-based ink as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
step 1, preparing a UV photocuring precursor
And (2) mixing the styrene, the acrylic acid and the glycidyl methacrylate in a molar ratio of 2-4: 2-4: 2-4, adding an initiator, and polymerizing to obtain styrene/acrylic acid/glycidyl methacrylate which is a raw material B for later use;
mixing a raw material A and a raw material B in a molar ratio of 1-7: 5-10, adding a catalyst, and reacting completely at normal temperature to obtain a UV (ultraviolet) photocuring precursor for later use;
step 2, preparing a diluent
And (3) mixing the glycidyl methacrylate and the raw material C in a molar ratio of 1: 3-7, adding a catalyst, and reacting completely at normal temperature to obtain a diluent for later use;
step 3, weighing the following raw materials in percentage by mass:
10-30% of UV photocuring precursor, 10-20% of oligomer, 5-10% of pigment, 10-30% of diluent, 5% of auxiliary agent, 1-5% of photoinitiator and 15-35% of solvent, wherein the sum of the mass percentages of the raw materials is 100%;
and 4, adding the UV photocuring precursor, the diluent and the oligomer into a solvent, uniformly stirring, sequentially adding the pigment, the auxiliary agent and the photoinitiator, and uniformly stirring to obtain the UV photocuring water-based ink.
9. The method for preparing the self-cleaning ultraviolet light curing water-based ink as claimed in claim 8, wherein the catalyst is triethanolamine, and the catalyst is 2-5% of the total mass of all raw materials in the step 3;
the initiator is azobisisobutyronitrile, and the initiator accounts for 2-5% of the total mass of all the raw materials in the step 3.
10. The preparation method of the self-cleaning ultraviolet light curing water-based ink as claimed in claim 8, wherein the raw material A is composed of hydroxyethyl methacrylate and trifluoroacetic acid, and the molar ratio of the hydroxyethyl methacrylate to the trifluoroacetic acid is 2-4: 6-8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793388A (en) * | 2020-06-08 | 2020-10-20 | 西安理工大学 | Fast-curing UV (ultraviolet) water-based conductive ink and preparation method thereof |
| CN111808472A (en) * | 2020-06-18 | 2020-10-23 | 西安理工大学 | Fast-curing UV (ultraviolet) water-based magnetic ink and preparation method thereof |
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| CN105001707A (en) * | 2015-07-09 | 2015-10-28 | 西安理工大学 | Ultraviolet photocuring water-based ink and preparation method thereof |
| CN110387163A (en) * | 2019-07-23 | 2019-10-29 | 西安理工大学 | A kind of low viscosity aqueous UV ink and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105001707A (en) * | 2015-07-09 | 2015-10-28 | 西安理工大学 | Ultraviolet photocuring water-based ink and preparation method thereof |
| CN110387163A (en) * | 2019-07-23 | 2019-10-29 | 西安理工大学 | A kind of low viscosity aqueous UV ink and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793388A (en) * | 2020-06-08 | 2020-10-20 | 西安理工大学 | Fast-curing UV (ultraviolet) water-based conductive ink and preparation method thereof |
| CN111793388B (en) * | 2020-06-08 | 2022-08-12 | 平江县彩美油墨有限公司 | Fast-curing UV (ultraviolet) water-based conductive ink and preparation method thereof |
| CN111808472A (en) * | 2020-06-18 | 2020-10-23 | 西安理工大学 | Fast-curing UV (ultraviolet) water-based magnetic ink and preparation method thereof |
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