CN111100498B - UV-LED curing ink and application thereof - Google Patents
UV-LED curing ink and application thereof Download PDFInfo
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- CN111100498B CN111100498B CN201911291848.3A CN201911291848A CN111100498B CN 111100498 B CN111100498 B CN 111100498B CN 201911291848 A CN201911291848 A CN 201911291848A CN 111100498 B CN111100498 B CN 111100498B
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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
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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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
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
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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
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
Abstract
The invention relates to the technical field of printing ink, in particular to UV-LED curing printing ink and application thereof, wherein the UV-LED curing printing ink is prepared from the following raw materials in percentage by mass: 5-25% of diluent, 20-60% of prepolymer, 2-8% of photoinitiator, 1-5% of co-initiator, 5-25% of filler, 5-20% of pigment, 0.1-1% of defoaming agent, 0.1-1% of flatting agent and 1-5% of dispersing agent; the UV-LED curing ink provided by the invention can effectively meet the light source curing of the UV-LED of the color-coated plate and the silk-screen requirement of the color-coated plate, and has the advantages of energy conservation, environmental protection, shortened silk-screen curing time and improved production efficiency.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to UV-LED curing printing ink and application thereof.
Background
At present, the shell of the household appliance product is mostly made of a color coating steel plate (namely, an organic coating steel plate), and in order to improve the appearance attractiveness, LOGO or pattern and character contents and the like are printed on the surface of the color coating plate in a silk screen mode. With the continuous improvement of environmental protection requirements, the original thermal curing and mercury lamp photo-curing screen printing can not meet the latest requirements, and the UV-LED light source is widely applied in the fields of curing printing, high color rendering index illumination and the like due to the characteristics of ultra-long service life, low energy consumption, high photon energy and no ozone generation, and is known as a green energy-saving light source with the greatest development prospect, but the existing thermal curing ink and the common UV ink can not meet the curing of the UV-LED light source, and further can not meet the screen printing requirements of a color-coated plate.
Disclosure of Invention
The invention aims to avoid the defects in the prior art and provide the UV-LED curing ink which can effectively meet the light source curing of the UV-LED of the color-coated plate and the silk-screen requirement of the color-coated plate, and has the advantages of energy conservation, environmental protection, shortened silk-screen curing time and improved production efficiency.
The purpose of the invention is realized by the following technical scheme:
the UV-LED curing ink is prepared from the following raw materials in percentage by mass: 5-25% of diluent, 20-60% of prepolymer, 2-8% of photoinitiator, 1-5% of co-initiator, 5-25% of filler, 5-20% of pigment, 0.1-1% of defoaming agent, 0.1-1% of flatting agent and 1-5% of dispersing agent.
Further, the diluent comprises methoxy polyethylene glycol monoacrylate and alkoxy trifunctional acrylate, and the sum of the mass percentages of the methoxy polyethylene glycol monoacrylate and the alkoxy trifunctional acrylate is 100%.
Further, the prepolymer comprises fatty acid modified EA, aliphatic PUA, chlorinated PEA and acrylic resin, and the sum of the mass percentages of the prepolymer comprising the fatty acid modified EA, the aliphatic PUA, the chlorinated PEA and the acrylic resin is 100%.
Further, the photoinitiator comprises a composite photoinitiator and isopropyl thioxanthone, and the sum of the mass percentages of the composite photoinitiator and the isopropyl thioxanthone is 100%.
Further, the coinitiator is active amine.
Further, the material is prepared from the following raw materials in percentage by weight: methoxy polyethylene glycol monoacrylate: 5-20 percent of alkoxy trifunctional acrylate, 1-10 percent of fatty acid modified EA 10-30 percent of aliphatic PUA, 1-10 percent of chlorinated PEA, 1-10 percent of acrylic resin, 1-8 percent of composite photoinitiator, 1-3 percent of isopropyl thioxanthone, 1-5 percent of active amine, 5-20 percent of talcum powder, 1-10 percent of calcium carbonate, 5-20 percent of pigment, 0.1-1 percent of defoaming agent, 0.1-1 percent of flatting agent and 1-5 percent of dispersing agent.
Further, the pigment is one or a combination of more of titanium dioxide, carbon black, iron oxide, chromium oxide, pearl powder and aluminum powder;
the defoaming agent is dimethyl polysiloxane;
the flatting agent is a mixture of acryloxy polysiloxane and fluorocarbon resin;
the dispersant is a low molecular weight unsaturated carboxylic acid polymer.
Further, the fatty acid modified EA is fatty acid modified bisphenol A epoxy acrylic resin;
the aliphatic PUA is polyurethane acrylic resin synthesized by the reaction of aliphatic and alicyclic isocyanate;
the chlorinated PE is chlorinated polyester acrylate.
Further, the composite photoinitiator is prepared from the following raw materials in percentage by mass: 50% of photoinitiator BAPO and 50% of 1-hydroxycyclohexyl phenyl ketone.
The embodiment also provides application of the UV-LED curing ink, and the UV-LED curing ink is applied to a color-coated board product.
The invention has the beneficial effects that: the UV-LED curing ink is added with a diluent, a prepolymer, a photoinitiator, an initiator aid, a filler, a pigment, a defoaming agent, a leveling agent and a dispersing agent, and the UV-LED curing ink can effectively meet the light source curing of a UV-LED of a color-coated plate and the silk-screen printing requirement of the color-coated plate through the proportion of the components, so that the UV-LED curing ink has the advantages of energy conservation, environmental protection, shortened silk-screen curing time and improved production efficiency.
Detailed Description
The invention is further described with reference to the following examples.
The UV-LED curing ink is prepared from the following raw materials in percentage by mass: 5-25% of diluent, 20-60% of prepolymer, 2-8% of photoinitiator, 1-5% of co-initiator, 5-25% of filler, 5-20% of pigment, 0.1-1% of defoaming agent, 0.1-1% of flatting agent and 1-5% of dispersing agent.
In a preferred embodiment, the diluent comprises methoxy polyethylene glycol monoacrylate and alkoxy trifunctional acrylate, and the sum of the mass percentages of the methoxy polyethylene glycol monoacrylate and the alkoxy trifunctional acrylate is 100%.
In a preferred embodiment, the prepolymer comprises fatty acid modified EA, aliphatic PUA, chlorinated PEA and acrylic resin, and the sum of the mass percentages of the prepolymer comprising the fatty acid modified EA, the aliphatic PUA, the chlorinated PEA and the acrylic resin is 100%.
In a preferred embodiment, the photoinitiator comprises a composite photoinitiator and isopropyl thioxanthone, and the sum of the mass percentages of the composite photoinitiator and the isopropyl thioxanthone is 100%.
In a preferred embodiment, the coinitiator is a reactive amine.
In a preferred embodiment, the material is prepared from the following raw materials in percentage by weight: methoxy polyethylene glycol monoacrylate: 5-20 percent of alkoxy trifunctional acrylate, 1-10 percent of fatty acid modified EA 10-30 percent of aliphatic PUA, 1-10 percent of chlorinated PEA, 1-10 percent of acrylic resin, 1-8 percent of composite photoinitiator, 1-3 percent of isopropyl thioxanthone, 1-5 percent of active amine, 5-20 percent of talcum powder, 1-10 percent of calcium carbonate, 5-20 percent of pigment, 0.1-1 percent of defoamer, 0.1-1 percent of flatting agent and 1-5 percent of dispersant.
In a preferred embodiment, the pigment is one or a combination of titanium dioxide, carbon black, iron oxide, chromium oxide, pearl powder and aluminum powder;
the filler is a mixture of talcum powder and calcium carbonate;
the defoaming agent is dimethyl polysiloxane;
the flatting agent is a mixture of acryloxy polysiloxane and fluorocarbon resin;
the dispersant is a low molecular weight unsaturated carboxylic acid polymer.
In a preferred embodiment, the fatty acid modified EA is a fatty acid modified bisphenol a epoxy acrylic resin;
the aliphatic PUA is polyurethane acrylic resin synthesized by the reaction of aliphatic and alicyclic isocyanate;
the chlorinated PE is chlorinated polyester acrylate.
In a preferred embodiment, the composite photoinitiator is prepared from the following raw materials in percentage by mass: 50% of photoinitiator BAPO and 50% of 1-hydroxycyclohexyl phenyl ketone.
The embodiment also provides application of the UV-LED curing ink, and the UV-LED curing ink is applied to a color-coated board product.
The invention will be further illustrated with reference to specific examples:
example 1
The UV-LED curing ink is prepared from the following raw materials in percentage by weight: 11.5% of methoxy polyethylene glycol monoacrylate, 5.5% of alkoxy trifunctional acrylate, 18% of fatty acid modified EA, 12.5% of aliphatic PUA, 5.5% of chlorinated PEA, 5.2% of acrylic resin, 4.2% of composite photoinitiator, 2% of isopropyl thioxanthone, 3% of active amine, 11.5% of talcum powder, 5.5% of calcium carbonate, 11.5% of pigment, 0.55% of defoaming agent, 0.55% of flatting agent and 3% of dispersing agent.
The embodiment also provides a preparation method of the color-coated sheet product, which comprises the following steps:
(1) preparing UV-LED curing ink: adding 11.5% of methoxy polyethylene glycol monoacrylate, 5.5% of alkoxy trifunctional acrylate, 18% of fatty acid modified EA, 12.5% of aliphatic PUA, 5.5% of chlorinated PEA, 5.2% of acrylic resin, 4.2% of composite photoinitiator, 2% of isopropyl thioxanthone, 3% of active amine, 11.5% of talcum powder, 5.5% of calcium carbonate, 11.5% of pigment, 0.55% of defoaming agent, 0.55% of flatting agent and 3% of dispersing agent into a container, and mixing and stirring uniformly to obtain a corresponding finished product of ink; and (5) standby.
(2) Color-coated sheet incoming material: cutting a color-coated plate with the size consistent with the volume of the product according to the shape of the product; and (5) standby.
(3) Cleaning the surface of the plate: cleaning the surface of the color-coated sheet material in the step (2); and (5) standby.
(4) Silk-screen printing of a color-coated plate: putting the UV-LED curing ink prepared in the step (1) and the incoming material of the color-coated plate in the step (3) into a screen printing machine for screen printing, so that the UV-LED curing ink is coated on the surface of the color-coated plate; and (5) standby.
(5) UV-LED curing: and curing the color-coated plate after silk-screen printing in the step through a UV-LED lamp tube to obtain the color-coated plate product.
Example 2
The UV-LED curing ink is prepared from the following raw materials in percentage by weight: methoxy polyethylene glycol monoacrylate: 12 percent of alkoxy trifunctional acrylate, 6 percent of fatty acid modified EA10 percent of aliphatic PUA 13 percent of chlorinated PEA 6 percent of acrylic resin, 5 percent of composite photoinitiator, 2 percent of isopropyl thioxanthone, 4 percent of active amine, 12 percent of talcum powder, 6 percent of calcium carbonate, 12 percent of pigment, 1 percent of defoaming agent, 1 percent of flatting agent and 4 percent of dispersing agent.
The embodiment also provides a preparation method of the color-coated sheet product, which comprises the following steps:
(1) preparing UV-LED curing ink: taking 12% of methoxy polyethylene glycol monoacrylate, 6% of alkoxy trifunctional acrylate, 10% of fatty acid modified EA, 13% of aliphatic PUA, 6% of chlorinated PEA, 6% of acrylic resin, 5% of composite photoinitiator, 2% of isopropyl thioxanthone, 4% of active amine, 12% of talcum powder, 6% of calcium carbonate, 12% of pigment, 1% of defoaming agent, 1% of leveling agent and 4% of dispersing agent, adding the materials into a container, and mixing and stirring uniformly to obtain a corresponding finished product of ink; and (5) standby.
(2) Color-coated sheet incoming material: cutting a color-coated plate with the size consistent with the volume of the product according to the shape of the product; and (5) standby.
(3) Cleaning the surface of the plate: cleaning the surface of the color-coated sheet material in the step (2); and (5) standby.
(4) Silk-screen printing of a color-coated plate: putting the UV-LED curing ink prepared in the step (1) and the incoming material of the color-coated plate in the step (3) into a screen printing machine for screen printing, so that the UV-LED curing ink is coated on the surface of the color-coated plate; and (5) standby.
(5) UV-LED curing: and curing the color-coated plate after silk-screen printing in the step through a UV-LED lamp tube to obtain the color-coated plate product.
Example 3
The UV-LED curing ink is prepared from the following raw materials in percentage by weight: methoxy polyethylene glycol monoacrylate: 11 percent of alkoxy trifunctional acrylate, 6 percent of fatty acid modification, 30 percent of aliphatic PUA, 11 percent of chlorinated PEA, 4 percent of acrylic resin, 3 percent of composite photoinitiator, 2.5 percent of isopropyl thioxanthone, 2.5 percent of active amine, 6 percent of talcum powder, 6 percent of calcium carbonate, 10 percent of pigment, 0.5 percent of defoaming agent, 0.5 percent of flatting agent and 2 percent of dispersant.
The embodiment also provides a preparation method of the color-coated sheet product, which comprises the following steps:
(1) preparing UV-LED curing ink: taking methoxy polyethylene glycol monoacrylate: 11 percent of alkoxy trifunctional acrylate, 6 percent of fatty acid modification, 30 percent of aliphatic PUA, 11 percent of chlorinated PEA, 4 percent of acrylic resin, 3 percent of composite photoinitiator, 2.5 percent of isopropyl thioxanthone, 2.5 percent of active amine, 6 percent of talcum powder, 6 percent of calcium carbonate, 10 percent of pigment, 0.5 percent of defoaming agent, 0.5 percent of flatting agent and 2 percent of dispersant are added into a container, and after being mixed and stirred uniformly, the corresponding finished product ink is obtained; and (5) standby.
(2) Color-coated sheet incoming material: cutting a color-coated plate with the size consistent with the volume of the product according to the shape of the product; and (5) standby.
(3) Cleaning the surface of the plate: cleaning the surface of the color-coated sheet material in the step (2); and (5) standby.
(4) Silk-screen printing of a color-coated plate: putting the UV-LED curing ink prepared in the step (1) and the incoming material of the color-coated plate in the step (3) into a screen printing machine for screen printing, so that the UV-LED curing ink is coated on the surface of the color-coated plate; and (5) standby.
(5) UV-LED curing: and curing the color-coated plate after silk-screen printing in the step through a UV-LED lamp tube to obtain the color-coated plate product.
Examples of the experiments
Subject: the color coated board products of examples 1-3;
the experimental method and experimental procedure are as follows: (1) and (3) adhesive force detection: and (3) attaching a 3M #600 adhesive tape (the peeling force is 15N-18N) to the position of the ink pattern grid of the color-coated plate product. Pressing the adhesive tape on the position above the silk-screen area by fingers, enabling the length of the adhesive tape to exceed the silk-screen part by at least 20mm, adhering the adhesive tape within 2-5 min, holding the suspended end of the adhesive tape, stably tearing off the adhesive tape within 0.5-1.0 s at an angle as close to 60 degrees as possible, and not falling off 100% when the adhesive tape is not less than 0 grade according to GB/T9286 marking test.
(2) Alcohol resistance detection: a500 g weight is wrapped by a spun yarn glove stained with industrial alcohol (the alcohol purity is 100%), the spun yarn glove is vertically placed on the surface of a silk-screen area, the weight is not pressurized in the vertical direction, the spun yarn glove slides back and forth 100 times in the horizontal direction (one time of reciprocating), the speed is 20-30 times/min, the stroke is 100mm, the silk-screen area has no exposed bottom (namely, the bottom color of the raw material of an injection molding piece cannot be seen after a test), and the silk-screen handwriting has no color change (namely, the color of the silk-screen area after the test has no color difference with the silk-screen area after the test) and has no falling and blur.
(3) And (3) hardness detection: after being dried, the mixture is placed for 12h (actual drying) for testing, the testing is carried out according to the 'instrument method' specified in GB/T6739, a Chinese brand advanced drawing pencil HB is used for scratching for 20mm at the speed of 0.5mm/s, and a sample piece for testing is taken to obtain the smooth surface of a part, thereby meeting the requirement of 4.6. And (5) after drying, placing for 12H for testing, wherein the hardness is required to be more than or equal to H, and no scratch or abrasion exists in five scratches.
(4) And (3) bending resistance detection: the bending at 90 degrees at normal temperature has no change, and the paint film has no cracking and peeling phenomena.
(5) And (3) acid and alkali resistance detection: dropping 2-5 drops of prepared acid (alkali) liquid on the surface of the paint film by using a dropper, standing the paint film for 30min at normal temperature, and observing the paint film (the acidity is 10g of NaCL, 42.5 g of Na2HPO42, 1g of lactic acid and 1L, PH-4.5 of purified water, the alkalinity is 10g of NaCL, 42.5 g of Na2HPO42, 1g of ammonium bicarbonate and 1L, PH-8.7 of purified water, and the acid and alkali tests are carried out separately and cannot be carried out simultaneously).
(6) And (3) low temperature resistance detection: standing at-30 deg.C for 48h, taking out and observing; after the test, the paint film has no abnormal change and is required not to fall off after being pasted by an adhesive tape.
(7) And (3) high temperature resistance detection: standing at 70 deg.C for 48h, taking out, and observing; after the test, the paint film has no abnormal change and is required not to fall off after being pasted by an adhesive tape.
(8) And (3) high and low temperature resistance detection: placing the mixture for 15 cycles in the environment of (70 ℃, 3 h; 30 ℃ below zero and 3h), naturally recovering the normal temperature after the test is finished, and checking the appearance; and (4) carrying out adhesion detection after standing for 12h, wherein the paint film has no color change, cracks and shedding, and does not shed after being pasted by an adhesive tape.
(9) And (3) detecting the salt water resistance: a sample plate (size 100mm multiplied by 50mm) is taken, 2/3 with the length of the sample plate is placed in an aqueous solution containing 5 percent NaCL at 40 ℃ for soaking for 72h, the water on the surface is taken out and is absorbed by filter paper, the appearance of a paint film is immediately observed, and the paint film is placed for 24h and then is subjected to an adhesion test, and the paint film is required not to fall off after being pasted by an adhesive tape.
(10) Detecting the washable detergent: a silk cloth sleeve soaked with detergent is used for wrapping a weight of 500g, the weight is vertically placed on the surface of a smooth paint film, the weight is not pressurized in the vertical direction, the weight slides back and forth 100 times in the horizontal direction (one time of reciprocating), the speed is 20-30 times/min, the stroke is 10cm, a silk screen area has no exposed bottom (namely, the bottom color of a raw material of an injection molding piece cannot be seen after a test), and no color change (namely, the color of the silk screen area after the test has no color difference with the silk screen area after the test) silk screen handwriting does not fall off or blur.
(11) And (3) weather resistance detection: according to the requirements of GB/T16422.2, the test conditions are as follows: the black standard temperature is 65 ℃ plus or minus 3 ℃, the relative humidity is 50 percent plus or minus 5 percent, the irradiation intensity is 550W/square meter, a product sample (50mm multiplied by 100mm) is placed in a xenon arc lamp weather-resistant tester for storage for 500 hours, and the product sample is taken out to observe the surface quality and the color change condition, and the product sample is required to have no bubbling, falling, fading and cracking.
And (4) experimental conclusion: the results of the experiment are shown in table 1 below:
watch 1
As can be seen from the above table, the adhesion, alcohol-proof hardness, bending resistance, acid-base resistance, low temperature resistance, high and low temperature resistance, salt water resistance, washing-resistant cleaning agent, and weather resistance of the color-coated sheet products in examples 1, 2, and 3 all meet the national standard, so the UV-LED curing ink coated on the surface of the color-coated sheet product has excellent performance.
The invention has the beneficial effects that: the UV-LED curing ink is added with a diluent, a prepolymer, a photoinitiator, an initiator aid, a filler, a pigment, a defoaming agent, a leveling agent and a dispersing agent, and the UV-LED curing ink can effectively meet the light source curing of a UV-LED of a color-coated plate and the silk-screen printing requirement of the color-coated plate through the proportion of the components, so that the UV-LED curing ink has the advantages of energy conservation, environmental protection, shortened silk-screen curing time and improved production efficiency.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A UV-LED curable ink, comprising: the material is prepared from the following raw materials in percentage by mass: 5-25% of diluent, 20-60% of prepolymer, 2-8% of photoinitiator, 1-5% of co-initiator, 5-25% of filler, 5-20% of pigment, 0.1-1% of defoaming agent, 0.1-1% of flatting agent and 1-5% of dispersing agent;
the diluent comprises methoxy polyethylene glycol monoacrylate and alkoxy trifunctional acrylate, and the sum of the mass percentages of the methoxy polyethylene glycol monoacrylate and the alkoxy trifunctional acrylate is 100%;
the prepolymer comprises fatty acid modified EA, aliphatic PUA, chlorinated PEA and acrylic resin, wherein the sum of the fatty acid modified EA, the aliphatic PUA, the chlorinated PEA and the acrylic resin is 100% in percentage by mass;
the photoinitiator comprises a composite photoinitiator and isopropyl thioxanthone, and the sum of the mass percentages of the composite photoinitiator and the isopropyl thioxanthone is 100%; the fatty acid modified EA is fatty acid modified bisphenol A epoxy acrylic resin;
the aliphatic PUA is polyurethane acrylic resin synthesized by the reaction of aliphatic and alicyclic isocyanate;
the chlorinated PEA is chlorinated polyester acrylate;
the composite photoinitiator is prepared from the following raw materials in percentage by mass: 50% of photoinitiator BAPO and 50% of 1-hydroxycyclohexyl phenyl ketone.
2. The UV-LED curing ink according to claim 1, wherein: the co-initiator is an active amine;
the filler is a mixture of talcum powder and calcium carbonate.
3. The UV-LED curing ink according to claim 2, wherein: the material is prepared from the following raw materials in percentage by weight: methoxy polyethylene glycol monoacrylate: 5-20 percent of alkoxy trifunctional acrylate, 1-10 percent of fatty acid modified EA 10-30 percent of aliphatic PUA, 1-10 percent of chlorinated PEA, 1-10 percent of acrylic resin, 1-8 percent of composite photoinitiator, 1-3 percent of isopropyl thioxanthone, 1-5 percent of active amine, 5-20 percent of talcum powder, 1-10 percent of calcium carbonate, 5-20 percent of pigment, 0.1-1 percent of defoaming agent, 0.1-1 percent of flatting agent and 1-5 percent of dispersing agent.
4. The UV-LED curable ink according to claim 3, wherein: the pigment is one or a combination of more of titanium dioxide, carbon black, iron oxide, chromium oxide, pearl powder and aluminum powder;
the defoaming agent is dimethyl polysiloxane;
the flatting agent is a mixture of acryloxy polysiloxane and fluorocarbon resin;
the dispersant is a low molecular weight unsaturated carboxylic acid polymer.
5. Use of a UV-LED curing ink according to any one of claims 1 to 4, characterized in that: and applying the UV-LED curing ink to a color-coated plate product.
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