CN114149711A - Water-based ink, preparation method thereof and plate - Google Patents
Water-based ink, preparation method thereof and plate Download PDFInfo
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- CN114149711A CN114149711A CN202110082666.6A CN202110082666A CN114149711A CN 114149711 A CN114149711 A CN 114149711A CN 202110082666 A CN202110082666 A CN 202110082666A CN 114149711 A CN114149711 A CN 114149711A
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Abstract
The embodiment of the invention discloses water-based ink, a preparation method thereof and a plate. The water-based ink comprises: A. b, C, D, wherein the composition and the parts by mass of the component A are respectively 15-25 parts of waterborne acrylic resin, 15-45 parts of waterborne polyurethane resin, 5-10 parts of film forming additive, 10-20 parts of waterborne black paste, 5-10 parts of matting powder, 0.5-1 part of defoaming agent, 0.5-1 part of dispersing agent, 0.5-1 part of wetting agent, 0.5-2 parts of thickening agent and 0-5 parts of component A diluent; the composition of the component B and the parts by weight are respectively as follows: 5-15 parts of a curing agent; the composition of the component C comprises the following components in parts by weight: 1-5 parts of an adhesion promoter; the composition of the component D comprises the following components in parts by weight: 0-25 parts of mixed component diluent. The water-based ink disclosed by the invention is convenient to coat, is firmly combined with a base material, has high covering power, is matte and flat, has small surface tension, good recoating performance, boiling resistance, high temperature resistance and strong bending resistance.
Description
Technical Field
The invention relates to the field of chemical coatings, and particularly relates to water-based ink, a preparation method of the water-based ink and a plate.
Background
The water paint is prepared by compounding, grinding and processing water-soluble resin, organic pigment, solvent and related auxiliary agents. With the flourishing of national economy, the development of printing industry and the enhancement of environmental awareness of people, the ink industry and the printing industry are rapidly developed, and the demand of the water-based ink is rapidly increased. Compared with the traditional ink, the water-based paint uses water to replace 30-70% of toxic organic solvents in the traditional ink, so that the ink has the characteristic of low VOC (volatile organic compounds) emission value, and the development of industrial pollution prevention and control is promoted by using the water-based paint. In addition, the water-based paint also has the characteristic of high cost performance, and compared with the traditional ink, the cost is greatly reduced.
However, the existing water-based paint has the defects of insufficient chemical resistance, aging resistance and boiling resistance, and in addition, when the water-based paint is applied to a substrate with larger surface tension, recoating difficulty is large and film forming is slow. Therefore, the problem to be solved is to design a water-based paint which has good chemical resistance, aging resistance and boiling resistance and is suitable for a substrate with large surface tension.
Disclosure of Invention
The invention mainly aims to provide the water-based ink, the preparation method thereof and the plate aiming at the defects and shortcomings of the prior art, and overcomes the defects of insufficient chemical resistance, aging resistance, boiling resistance and the like of the water-based ink.
Specifically, in a first aspect, the embodiment of the invention discloses a water-based ink, which comprises the following components in parts by mass:
in one embodiment of the present invention, the aqueous acrylic resin is an aqueous hydroxy acrylic emulsion.
In one embodiment of the present invention, the special aqueous polyurethane is an aqueous fluorine-modified polyurethane emulsion.
In one embodiment of the invention, the coalescent is dipropylene glycol dimethyl ether.
In one embodiment of the invention, the aqueous black paste is a high-temperature-resistant boiling-type water-dispersible black paste;
the matting powder is silicon dioxide matting powder;
the defoaming agent is one or more of polyether polysiloxane emulsion defoaming agents;
the dispersant is one or more of modified polyether dispersants containing high pigment affinity functional groups;
the thickening agent is one or more of silica and hectorite;
the wetting agent is one or more of polyether siloxane copolymer wetting agents;
the component A diluent and the mixed component diluent are deionized water.
In one embodiment of the present invention, the curing agent is a water dispersible isocyanate curing agent.
In one embodiment of the invention, the adhesion promoter is a silane coupling agent.
In a second aspect, an embodiment of the present invention also provides a method for preparing an aqueous ink, including: uniformly mixing and stirring the aqueous acrylic resin, the aqueous polyurethane resin, the film-forming additive, the defoaming agent, the dispersing agent, the wetting agent, the matting agent, the aqueous black paste, the thickening agent and the component A diluent according to the mass parts to obtain a component A; weighing the curing agent according to the mass part to obtain a component B; weighing the adhesion promoter according to the mass part to obtain a component C; and mixing the component A, the component B and the component C to obtain a mixed system, and adding the component D according to the mass part for diluting to obtain the water-based ink.
In one embodiment of the invention, the open-lean ratio is a ratio of component a: and B component: and C, component C: the component D is 100: (5-15): (1-5): (0 to 25).
In a third aspect, an embodiment of the present invention further provides a plate, including: the water-based ink coating is arranged on the substrate and consists of the water-based ink prepared by the preparation method.
The technical scheme has the following advantages or beneficial effects:
the water-based ink is obtained by matching a special water-based acrylic resin, a special water-based polyurethane resin, a film-forming assistant and other assistants in a formula, is convenient to prepare, print and construct, can be cured at room temperature, can be heated to accelerate curing, namely crosslinking degree, and is firmly combined with a base material; the water-based ink coating consisting of the water-based ink has the advantages of thin thickness, strong covering performance, smooth matte, small surface tension and good recoating performance; has the characteristics of boiling resistance, high temperature resistance and strong bending resistance; the VOC emission value is very small, and the method is healthy and environment-friendly and meets the requirement of green production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of the steps of a method for preparing an aqueous ink according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a plate according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific implementation, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The embodiment of the invention discloses water-based ink, a preparation method thereof and a plate.
The water-based ink disclosed by one embodiment of the invention comprises the following components in parts by mass:
the component A comprises: 15-45 parts of water-based acrylic resin, 15-45 parts of water-based polyurethane resin, 5-10 parts of film forming additive, 10-20 parts of water-based black paste, 5-10 parts of matting powder, 0.5-1 part of defoaming agent, 0.5-1 part of dispersing agent, 0.5-1 part of wetting agent, 0.5-2 parts of thickening agent and 0-5 parts of component A diluent;
and B component: 5-15 parts of a curing agent;
and C, component C: 1-5 parts of an adhesion promoter;
and (D) component: mixed component diluent 25 parts.
It is worth mentioning that the mass fraction mentioned in the embodiment of the present invention is an intuitive mass proportioning method for convenient calculation in industry, and the number directly represents the mass of the required proportioning material. In a specific embodiment, the addition is only required to be in proportion, and the unit can be changed according to the requirement.
Specifically, the water-based acrylic resin adopts water-based hydroxyl acrylic emulsion; the waterborne polyurethane resin adopts waterborne fluorine modified polyurethane emulsion; the film-forming assistant adopts dipropylene glycol dimethyl ether; the water-based black paste is high-temperature-resistant water-boiling type water-dispersible black paste; the matting powder is silicon dioxide matting powder.
Specifically, the defoaming agent is one or more of polyether polysiloxane emulsion defoaming agents; the dispersant is one or more of modified polyether dispersants containing high pigment affinity functional groups; the thickener is one or more of silica and hectorite; the wetting agent is one or more of polyether siloxane copolymer wetting agents. Wherein, the defoaming agent is, for example, a polyether polysiloxane emulsion defoaming agent, and a mixed agent of a plurality of polyether polysiloxane emulsion defoaming agents can also be used; the dispersant mentioned is, for example, a dispersant of modified polyether type containing high pigment affinity functional group, and a plurality of mixed reagents containing high pigment affinity functional group modified polyether type dispersants; as the thickener, for example, silica, hectorite and a mixed agent of silica and hectorite can be used; as the wetting agent, for example, a polyether siloxane copolymer-based wetting agent is used, and a mixed agent of a plurality of polyether siloxane copolymer-based wetting agents may be used.
Specifically, the diluent of the component A and the diluent of the mixed component both adopt deionized water; the curing agent adopts a water dispersible isocyanate curing agent; the adhesion promoter adopts silane coupling agent.
As shown in fig. 1, a preparation method for preparing the aforementioned water-based ink according to an embodiment of the present invention includes, for example, the following steps:
s001: mixing and stirring uniformly the aqueous acrylic resin, the aqueous polyurethane resin, the film forming additive, the defoaming agent, the dispersing agent, the wetting agent, the flatting powder, the aqueous black paste, the thickening agent and the component A diluent according to the mass parts to prepare a component A;
s002: weighing the curing agent according to the mass parts to obtain a component B;
s003: weighing the adhesion promoter according to the mass part to obtain a component C;
s004: mixing the component A, the component B and the component C to obtain a mixed system, and adding the component D according to the mass part for dilution to obtain a mixed solution;
further, the stated open-diluent ratio is the A component: and B component: and C, component C: the component D is 100: (5-15): (1-5): (0 to 25).
As shown in fig. 2, one embodiment of the present invention provides a sheet material 10, the sheet material 10 including, for example: a substrate 110 and a water-based ink coating 120, wherein the water-based ink coating 120 is disposed on the substrate 110, wherein the water-based ink coating 120 is composed of the aforementioned water-based ink, and the water-based ink coating 120 can be obtained by printing the water-based ink prepared by the aforementioned preparation method on the substrate 110.
Specifically, the mentioned substrate 110 is prepared by co-extruding polymethyl methacrylate (PMMA) and Polycarbonate (PC), for example, and unlike plastic blend alloy, a PMMA layer with good hardness and wear resistance is located at the outer side, and a PC layer with good toughness is located at the inner side, so that the sheet can resist impact with greater strength, and has wide application. The substrate 110 may further include a mirror silver layer covering the PC layer, and the aqueous ink coating 120 may be connected to the PC layer through the mirror silver layer. The water-based ink prepared by the preparation method has small surface tension and can overcome the characteristic of large water drop angle of the mirror silver layer for printing. In addition, the sheet material 10 can be used as a mobile phone cover plate, and has the advantages of thin thickness, aging resistance and high covering performance. Furthermore, the substrate 110 mentioned may also be, for example, tempered glass, and the aqueous ink is combined with the substrate 110, for example, by printing, to form the aqueous ink coating 120. Although the embodiment is not limited to the above, the mentioned substrate may also be a material with a matte and flat surface, and the water-based ink provided by the embodiment of the invention can meet the surface coating application of most of plates and tempered glass with smooth coatings on the surface.
It is worth mentioning that the mentioned printing uses, for example, a screen printing process, a screen as a substrate, and a photosensitive plate making method to make a screen printing plate. When printing, ink is poured into one end of the screen printing plate, a scraper plate is used for applying certain pressure to the ink position on the screen printing plate, meanwhile, the ink moves towards the other end of the screen printing plate at a constant speed, and the water-based ink is extruded onto a printing stock from meshes of the screen printing plate by the scraper plate during moving, so that a water-based ink coating is formed.
In addition, in the use process of the water-based ink after the components are mixed and diluted, the viscosity of the water-based ink is increased continuously due to chemical reaction between the components, so that the water-based ink is finally cured, namely, the coating state cannot be continued, and the period from mixing the components to curing (actually, the curing will occur) is called an activation period. Specifically, the water-based ink is screen-printed on the substrate 110, the thickness of the water-based ink is 8 micrometers, and the substrate 110 printed with the water-based ink is placed at room temperature (23 degrees, humidity is 60%), and is subjected to appearance and standing for 40 minutes without curing. This makes it possible to obtain a water-based ink which has a long pot life and thus a sufficient working time in the screen printing process.
First embodiment
The water-based ink of the embodiment is prepared by weighing the following components in parts by weight:
and (2) component A: 15 parts of water-based acrylic resin, 45 parts of water-based polyurethane resin, 8 parts of film-forming additive, 20 parts of water-based black paste, 6 parts of matting powder, 0.5 part of defoaming agent, 1 part of dispersing agent, 1 part of wetting agent, 0.5 part of thickening agent and 3 parts of component A diluent.
And (B) component: 15 parts of curing agent.
And (3) component C: and 2 parts of an adhesion promoter.
And (3) component D: mixed component diluent 25 parts.
Specifically, in the component A, the aqueous acrylic resin is aqueous hydroxyl acrylic emulsion, the aqueous polyurethane resin is aqueous fluorine modified polyurethane emulsion, the film forming additive is dipropylene glycol dimethyl ether, the aqueous black paste is high-temperature-resistant water-boiling-type water-dispersible black paste, the matting powder is Degussa OK500, the defoaming agent is polyether polysiloxane emulsion defoaming agent, the dispersing agent is high-pigment affinity functional group-containing modified polyether dispersing agent, the thickening agent is silica or hectorite, the wetting agent is polyether siloxane copolymer wetting agent, and the component A diluent is deionized water. In the component B, the curing agent is a water dispersible isocyanate curing agent. In the component C, the adhesion promoter is a silane coupling agent.
The preparation method of this example is as follows:
s001, sequentially adding the aqueous hydroxyl acrylic emulsion, the aqueous fluorine modified polyurethane, the dipropylene glycol dimethyl ether, the polyether polysiloxane emulsion defoaming agent, the modified polyether dispersant containing the high pigment affinity functional group and the polyether siloxane copolymer wetting agent of the component A into a test tank according to the weight parts of the weighed ingredients, and dispersing for 15-20min in a dispersion machine with the rotating speed of 600-1000 r/min.
S002, sequentially adding Degussa OK500 and the high-temperature-resistant water-boiling-type water-dispersible black paste into a test tank according to the weighed mass parts of the ingredients, and changing the rotating speed of a dispersion machine to 1000-1500r/min for dispersion for 10-15 min.
S003, adding silica according to the weight parts of the weighed ingredients, and changing the rotating speed of a dispersion machine to 800-.
S004, adding deionized water as a component A diluent into the weighed ingredients in parts by mass, and changing the rotating speed of a dispersion machine to be 600-800r/min and dispersing for 5-10min to obtain a component A.
S005, weighing the water-dispersible isocyanate curing agent according to the weight parts of the weighed ingredients to obtain a component B;
s006 is prepared by weighing the silane coupling agent according to the weight parts of the weighed ingredients to obtain the component C.
S007 weighing deionized water according to the weight parts of the weighed ingredients to obtain the component D
S008, mixing the component A, the component B and the component C according to the weight parts of the weighed ingredients to obtain a mixed system, adding the component D, namely adding deionized water, and changing the rotating speed of a dispersion machine to 600-800r/min for 5-10 min.
S009 thinning according to the thinning ratio, wherein the mentioned thinning ratio is component A: and B component: and C, component C: the component D is 100: (5-15): (1-5): and 25, uniformly stirring all the added components to obtain the water-based ink.
In addition, in order to facilitate performance testing of the water-based ink, after the water-based ink is prepared, a water-based ink coating can be further prepared so as to facilitate performance testing. That is, after step S009, further includes:
the water-based ink is printed on a substrate by a screen printing process, the mentioned substrate is, for example, a composite substrate of PC and PMMA, and the mixed solution is, for example, printed on the PC surface of the substrate, although the embodiment is not limited thereto, and the substrate may also be, for example, tempered glass. Wherein the thickness of the ink film for printing the water-based ink is 30-40 mu m, the ink film is baked for 2h in a blast drier at the temperature of 80-85 ℃ to obtain a water-based ink coating, and the performance test is carried out on the obtained water-based ink coating.
Second embodiment
The specific kinds of the components of the aqueous ink of this example were selected and the aqueous ink coating were prepared in the same manner as in the first example. The difference is that the components of the water-based ink disclosed in this embodiment are different from those of the first embodiment in parts by mass, and the water-based ink disclosed in this embodiment is prepared by weighing the following components in parts by mass:
and (2) component A: 45 parts of water-based acrylic resin, 15 parts of water-based polyurethane resin, 8 parts of film-forming additive, 20 parts of water-based black paste, 6 parts of matting powder, 0.5 part of defoaming agent, 1 part of dispersing agent, 1 part of wetting agent, 0.5 part of thickening agent and 3 parts of component A diluent.
And (B) component: 15 parts of curing agent.
And (3) component C: and 2 parts of an adhesion promoter.
And (3) component D: mixed component diluent 25 parts.
Third embodiment
The specific kinds of the components of the aqueous ink of this example were selected and the aqueous ink coating were prepared in the same manner as in the first example. The difference is that the components of the water-based ink in this embodiment are different from those in the first embodiment in parts by mass, and the water-based ink in this embodiment is prepared by weighing the following components in parts by mass:
and (2) component A: 30 parts of water-based acrylic resin, 30 parts of water-based polyurethane resin, 8 parts of film-forming additive, 20 parts of water-based black paste, 6 parts of matting powder, 0.5 part of defoaming agent, 1 part of dispersing agent, 1 part of wetting agent, 0.5 part of thickening agent and 3 parts of component A diluent.
And (B) component: 15 parts of curing agent.
And (3) component C: and 2 parts of an adhesion promoter.
And (3) component D: mixed component diluent 25 parts.
The invention carries out performance detection on the water-based ink coatings obtained in the three previous embodiments, and the detection items comprise: alcohol rub resistance, MEK drip resistance, and resistance to high temperature poaching.
Specifically, with regard to the alcohol rub resistance test, after the aqueous ink coating was completely cured, a cotton swab was wetted with analytically pure ethanol (99.8% absolute alcohol), a 500g weight was used to apply a pressure of 4.9N (g was 9.8N/KG) to wipe the coated surface back and forth, and the number of wipes was recorded, and it was observed whether the appearance of the outer surface of the coating was significantly changed, and when scratches occurred on the outer surface of the coating, the recording of the number of wipes was stopped.
Specifically, with respect to the MEK test, MEK, i.e., methyl ethyl ketone, a test area is selected on the outer surface of the coating, the surface is cleaned with tap water or a dry rag to remove any impurities, a 10mm x 10mm rectangular test area is marked, a methyl ethyl ketone solution is dropped into the test area at a uniform dropping rate by a dropping test method, a time is counted from the beginning of dropping the methyl ethyl ketone solution into the test area, whether the outer surface of the coating of the sample is peeled off or not is observed, and the time is counted when the outer surface of the aqueous ink coating of the test area is peeled off.
Specifically, regarding the high temperature resistant poaching test, the water temperature of the high temperature water was set to 100 ℃, the equipment selected for the constant temperature water bath, the sample of the example was placed in the constant temperature water bath of 100 ℃ for poaching, the poaching time was recorded, and whether the outer surface of the coating of the sample was peeled off or not was observed, and the timing was ended when the outer surface of the coating of the sample began to be peeled off.
The test results of the performance test of the dried water-based ink are shown in the following table:
TABLE 1 test results of the properties of aqueous inks
Wherein the test standard of the alcohol wiping resistance test item adopts the current GB/T23989-2009.
From the above performance test results of the water-based ink, it is understood that the second embodiment is superior to the third embodiment and the first embodiment in the alcohol wiping resistance; the second embodiment, the third embodiment are superior to the first embodiment in MEK resistance performance; the first embodiment is superior to the third and second embodiments in high-temperature boiling resistance. Therefore, the water-based ink in the first embodiment is suitable for products which require strong boiling resistance and good matte property; the water-based ink in the second embodiment is suitable for products requiring high chemical resistance and ageing resistance; the third embodiment is a preferred embodiment, and the water-based ink can combine the advantages of the first embodiment and the second embodiment, and has better chemical resistance and better boiling resistance.
In addition, the invention also carries out hardness test, dyne value test, adhesion force grade test and the like on the water-based ink coating. Wherein, in the hardness test, a triangular pencil 500g multiplied by 1H is adopted without scratches; in the dyne value test, a 36 dyne pen (also called a surface tension test pen) is adopted to brush ink sticks with the length of about 100mm on the outer surface of the coating, and the phenomena of shrinkage, ink drop formation and the like do not occur in more than 95 percent of the ink stick area after 3 seconds of observation; in the adhesion grade test, a sample is placed in a constant-temperature water bath kettle at 100 ℃ for boiling, the test is carried out after the sample is kept still for 30min, a cross-shaped lattice pattern is cut on the outer surface of a coating by using a paint film scriber, a cut is made to reach a base material 110, a No. 600 adhesive tape of a 3M company is used for being attached to the cut and then pulled open, the condition of a lattice area is observed, and the edge of the cut is found to be completely smooth without any stripping condition, namely the ISO grade is 0.
In summary, according to the water-based ink, the preparation method thereof and the plate disclosed in the embodiment, the special water-based acrylic resin, the special water-based polyurethane resin, the film-forming assistant and other assistants are matched in the formula, so that the water-based ink is convenient to prepare, convenient to print and construct, capable of being cured at room temperature and heated to accelerate curing, namely, the degree of crosslinking, and is firmly combined with the substrate; the obtained water-based ink is thin in thickness, strong in covering performance, smooth in matte, small in surface tension and good in recoating performance; has the characteristics of boiling resistance, high temperature resistance and strong bending resistance; the VOC emission value is very small, and the method is healthy and environment-friendly and meets the requirement of green production.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The water-based ink is characterized by comprising the following components in parts by mass:
the component A comprises:
the component B comprises:
5-15 parts of a curing agent;
a component C comprising:
1-5 parts of an adhesion promoter;
and a component D, comprising:
0-25 parts of mixed component diluent.
2. The aqueous ink according to claim 1, wherein the aqueous acrylic resin is an aqueous hydroxy acrylic emulsion.
3. The aqueous ink according to claim 1, wherein the aqueous polyurethane resin is an aqueous fluorine-modified polyurethane emulsion.
4. The aqueous ink according to claim 1, wherein the film-forming aid is dipropylene glycol dimethyl ether.
5. The water-based ink as claimed in claim 1, wherein the water-based black paste is a high temperature water-boiling resistant water-dispersible black paste;
the matting powder is silicon dioxide matting powder;
the defoaming agent is one or more of polyether polysiloxane emulsion defoaming agents;
the dispersant is one or more of modified polyether dispersants containing high pigment affinity functional groups;
the thickening agent is one or more of silica and hectorite;
the wetting agent is one or more of polyether siloxane copolymer wetting agents;
the component A diluent and the mixed component diluent are deionized water.
6. The aqueous ink of claim 1, wherein the curing agent is a water-dispersible isocyanate curing agent.
7. The aqueous ink of claim 1, wherein the adhesion promoter is a silane coupling agent.
8. The method for producing an aqueous ink according to any one of claims 1 to 7, comprising:
uniformly mixing and stirring the aqueous acrylic resin, the aqueous polyurethane resin, the film-forming additive, the defoaming agent, the dispersing agent, the wetting agent, the matting agent, the aqueous black paste, the thickening agent and the component A diluent according to the mass parts to obtain a component A;
weighing the curing agent according to the mass part to obtain the component B;
weighing the adhesion promoter according to the mass part to obtain the component C;
and mixing the component A, the component B and the component C to obtain a mixed system, and adding the component D according to the mass part for diluting to obtain the water-based ink.
9. The method for preparing the water-based ink according to claim 8, wherein the thinning ratio is component A: and B component: and C, component C: the component D is 100: (5-15): (1-5): (0 to 25).
10. A panel, comprising:
a substrate; and
an aqueous ink coating disposed on the substrate and consisting of the aqueous ink of any one of claims 1-7.
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| CN115612343A (en) * | 2022-10-27 | 2023-01-17 | 东莞智源彩印有限公司 | Environment-friendly UV drying curing ink and preparation method thereof |
| CN115960499A (en) * | 2022-10-12 | 2023-04-14 | 上海君子兰新材料股份有限公司 | Preparation and application of water-based two-component high-adhesion solid-color coating |
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Application publication date: 20220308 |