CN110564209A - coating ink for fast low-temperature curing of PET (polyethylene terephthalate) film material at 80 DEG C - Google Patents
coating ink for fast low-temperature curing of PET (polyethylene terephthalate) film material at 80 DEG C Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
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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
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Abstract
the invention discloses coating ink for fast low-temperature curing of a PET (polyethylene terephthalate) film material at 80 ℃, and belongs to the technical field of coating ink. A coating ink for PET film material quick low-temperature curing at 80 ℃ mainly comprises the following components: hydroxy acrylic resin: 10-15 parts; special modified polyester resin: 13-20 parts; an adhesion promoter: 3-8 parts; dispersing agent: 10-20 parts; carbon black filler: 10-15 parts; blue pigment and filler: 2-5 parts; matting and filling material: 6-10 parts; solvent: 20-30 parts of a solvent; auxiliary agent: 0.1-0.5 part; the invention can meet the requirement of quick curing at the low temperature of 80 ℃, namely surface drying within 25 seconds, has the characteristics of good covering, excellent alcohol resistance, good storage stability, easy construction and the like, and does not need to accumulate various coatings to achieve the characteristics of good covering, alcohol resistance, blue and black resistance and the like; when a layer of matt oil is required to be coated on the surface of the black pattern layer, due to good alcohol resistance and excellent adhesive force, the matt oil cannot generate a 'bottom biting' phenomenon on the black matrix, and the hidden danger that the coating falls off when the coating is applied at a terminal is eliminated.
Description
Technical Field
The invention relates to the technical field of coating ink, in particular to coating ink for quick low-temperature curing of a PET (polyethylene terephthalate) film material at 80 ℃.
background
at present, products in the coating industry, particularly thin film electronic products, are developed towards the direction of being thinner and lighter, and thin film materials used in the coating industry are generally PET, PI, PP, BOPP and other materials, wherein the amount of the PET materials accounts for more than 90%; the thickness range of the PET material is generally 0.012mm to 0.35mm, and the thinner PET material is easier to deform under the condition of overhigh temperature, namely 100 ℃ to 150 ℃; therefore, in order to meet the development trend that the coated products are thinner and thinner, the temperature of the baking section in the production process needs to be changed from higher temperature, namely more than 100 ℃, to low temperature, namely about 80 ℃ for baking, so that the material deformation is prevented, the energy consumption can be reduced, and the cost is saved.
The most common printing ink used on PET materials in the coating industry is black ink, which is used to provide good hiding; the PET material after printing ink printing mainly has the application fields: electronic industry adhesive tapes for securing and protecting various products, or for providing temporary protection during production, etc.; and part of printed products are suitable for shading and insulating the frame of products such as mobile phones, computers, electric appliances and the like.
the prior gravure black printing ink used on PET materials is generally one or more of solvent type polyurethane and solvent type acrylic resin, and is prepared by dispersing and grinding a certain proportion of dispersant, carbon black filler, extinction filler, solvent and auxiliary agent; the ink construction method on PET is generally as follows: ink main agent: curing agent: diluent =100:5-10: 30-50.
The polyurethane system ink has the advantages of excellent film covering, high drying speed, low-temperature baking, prevention of deformation of thinner materials and reduction of energy consumption; however, most of the coating films have poor aesthetic property and are usually reddish and yellowish, so that many customers need to add a layer of matte oil on the coating to improve the aesthetic property of the coating film, so a printing process is added, the production cost is increased, the polyurethane resin is limited by the molecular structure of the polyurethane resin, the polyurethane resin is basically not alcohol-resistant, and the coating can be easily scratched by using alcohol after the coating film is completely dried; the polyurethane resin is generally soft, the Tg point is very low, and even though the Tg point and the crosslinking density after film forming are improved by reacting and crosslinking the isocyanate curing agent and hydroxyl in the resin, the resistance to alcohol is low, and an alcohol-resistant coating cannot be formed; because of the structural characteristics, the polyurethane resin mostly belongs to a straight-chain structure, the resin is soft, the surface of a coating after film forming is soft, and the friction resistance is poor; the black ink made of polyurethane system resin usually has a lot of color differences, which are reddish and yellowish, and is difficult to meet the requirement of pursuing a blue-black phase in the current market, generally, the better covered polyurethane system ink is required to improve the color difference effect of a coating film, a layer of matte oil is selected to be additionally coated on the black, but because the chemical resistance of the common polyurethane system ink is too poor, the phenomenon of bottom biting is easily caused when the matte oil coating layer is coated on the surface of the matte oil coating layer, so that the integral adhesive force is reduced, and the coating layer falls off;
The acrylic acid system ink has the advantages of good alcohol resistance, good color development of black ink, good attractiveness of a coated film after being dried, capability of easily meeting the condition of a blue-black phase, namely, the color difference L value is between 23 and 28, the color difference a value is between-1 and 1, the color difference b value is between-2 and 0, high drying speed of the acrylic acid system ink, and suitability for a low-temperature baking process; however, when the common acrylic ink is used on PET, a layer of base coat needs to be made, otherwise, the adhesive force is not available, the drying speed of the acrylic resin system is high, but the acrylic ink alone is difficult to realize excellent adhesive force on PET materials, the problem of poor adhesive force can be slightly improved by adding a corona step, but the effect is not particularly obvious, the acrylic ink is usually used together with the base coat, and the process is complex.
Disclosure of Invention
The invention aims to solve the problems in the background technology, and provides a coating ink for fast low-temperature curing of a PET film material at 80 ℃.
in order to achieve the purpose, the invention adopts the following technical scheme:
A coating ink for PET film material quick low-temperature curing at 80 ℃ mainly comprises the following components:
Hydroxy acrylic resin: 10-15 parts;
Special modified polyester resin: 13-20 parts;
An adhesion promoter: 3-8 parts;
dispersing agent: 10-20 parts;
Carbon black filler: 10-15 parts;
Blue pigment and filler: 2-5 parts;
matting and filling material: 6-10 parts;
solvent: 20-30 parts of a solvent;
Auxiliary agent: 0.1 to 0.5 portion.
preferably, the hydroxyl acrylic resin is one or more of long-chain hydroxyl acrylic resin and branched-chain hydroxyl acrylic resin, the comprehensive solid content of the hydroxyl acrylic resin is 30-40%, the molecular weight range is 15000-25000, the glass transition temperature reaches 60-70 ℃, and the hydroxyl value range is 30-40 mgKOH/g.
Preferably, the special modified polyester resin is one or more of a direct-linked saturated polyester resin and a branched saturated polyester resin, and the molecular weight range of the saturated polyester resin in the special modified polyester resin is 20000-25000, the Tg point range is 10-15 ℃, the hydroxyl value range is 4-8mgKOH/g, and the acid value range is 0-3 KOH/g.
Preferably, the adhesion promoter is one or more of amino resin and phenylated amino resin.
preferably, the dispersant is one or more of BYK-163, BYK-2013, Efka-4310, Efka-4585 and Youka 60S.
Preferably, the carbon black filler is one or more of degussa 4A, MA-7, cabot 1200 and Mitsubishi MA 11.
Preferably, the blue pigment and filler is one or more of phthalocyanine blue and milori blue.
preferably, the solvent is one or more of acetone, butanone, ethyl ester and diethyl ether.
Preferably, the auxiliary agent is one or more of an organic tin drier, an organic amine drier and an organic bismuth drier.
Compared with the prior art, the invention provides the coating ink for the rapid low-temperature curing of the PET film material at 80 ℃, which has the following beneficial effects:
When the coating ink for the PET film material quick low-temperature curing at 80 ℃ is prepared, the step 1: preparing 12.5 parts of hydroxy acrylic resin and 16.5 parts of special modified polyester resin, and pre-compatibilizing the hydroxy acrylic resin and the special modified polyester resin;
The hydroxyl acrylic resin is one or more of long-chain hydroxyl acrylic resin and branched-chain hydroxyl acrylic resin, the comprehensive solid content of the hydroxyl acrylic resin is 35 percent, the molecular weight is 20000, the glass transition temperature reaches 65 ℃, and the hydroxyl value is 35mgKOH/g, the hydroxyl acrylic resin can accelerate the curing speed of the whole ink system, and the high-strength curing effect of the hydroxyl acrylic resin can greatly improve the alcohol resistance and scratch resistance of the coating; the special modified polyester resin is one or more of direct-connection saturated polyester resin and branched-chain saturated polyester resin, the molecular weight of the saturated polyester resin in the special modified polyester resin is 22500, the Tg point is 12.5 ℃, the hydroxyl value is 6mgKOH/g, and the acid value is 2KOH/g, the hydroxy acrylic resin and the special modified polyester resin have good compatibility and storage stability, the prepared ink coating has good appearance effect, high color development and excellent alcohol resistance, and meanwhile, the drying speed of the ink can be promoted, and the adhesive force of the ink on PET can be ensured;
Step 2: adding 15 parts of dispersing agent and 5.5 parts of adhesion promoter in the step 1, dispersing at the speed of 800rpm for 10 minutes;
The dispersing agent is one or more of BYK-163, BYK-2013, Efka-4310, Efka-4585 and Youka 60S, and can disperse high-pigment carbon black filler and blue pigment filler added in the subsequent steps, improve the blackness-level color-developing property of an ink layer, reduce the viscosity of the ink, prevent thixotropy and improve the insulating effect of an ink system; the adhesion promoter is one or more of amino resin and phenylated amino resin, the adhesion promoter has good identity with hydroxy acrylic resin and special modified polyester resin, turbidity cannot occur, the adhesion is easy to reduce due to the addition of the hydroxy acrylic resin, the added adhesion promoter can react with the hydroxy acrylic resin, a crosslinking network formed after reaction is firmer, and the adhesion is improved;
And step 3: after the step 2 is finished, pouring 12.5 parts of prepared carbon black filler and 2.5 parts of blue pigment filler, and dispersing for 40 minutes at the speed of 800 rpm;
The carbon black filler is one or more of Degussa 4A, MA-7, Kabot 1200 and Mitsubishi MA11, and the added carbon black filler needs to be pretreated, so that the construction is convenient, the tinting strength is stronger, and good blackness and covering are provided for an ink system; the blue pigment filler is one or more of phthalocyanine blue and milori blue, the blue pigment filler can improve the blue phase requirement after the ink film forming, does not influence the chromatic aberration L value and the a value of a coating film and the viscosity of the ink, and can achieve a matte black effect with blue phase and high blackness by matching the carbon black filler, the blue pigment filler and the extinction filler added in the subsequent steps, which is mainly reflected in that the gloss is 1 to 3Gs, the chromatic aberration L value ranges from 23 to 28, the chromatic aberration a value ranges from-1 to 1, the chromatic aberration b value ranges from-2 to 0, and the color difference is more attractive;
And 4, step 4: adding 8 parts of partially prepared solvent in the step 3, dispersing for 10 minutes at the speed of 1000rpm, grinding to obtain a semi-finished product after the required fineness is reached;
The solvent is one or more of acetone, butanone, ethyl ester and diethyl ether, can dissolve resin, adjust the viscosity of the ink and improve the compatibility among the resins, has low boiling point and high volatilization efficiency, and can be baked at low temperature to achieve the performance of quick surface drying;
and 5: adding 8 parts of partially prepared solvent into the semi-finished product prepared in the step 4, stirring, adding 8 parts of extinction filler in the stirring process, and grinding after uniformly stirring;
step 6: after the step 5 is finished, adding 0.3 part of auxiliary agent and 9 parts of residual solvent into the obtained material, dispersing for 15 minutes at the speed of 1000rpm, and filtering after dispersion to obtain a finished product of the coating ink;
The auxiliary agent is one or more of an organic tin drier, an organic amine drier and an organic bismuth drier, the auxiliary agent can accelerate the reaction of hydroxyl in the resin binder and NCO groups in the isocyanate curing agent, so that the drying rate of the ink coating is improved, the use activation period of the ink is not influenced by low addition amount, and the reaction speed can be effectively improved.
The device has the advantages that the parts which are not involved are the same as or can be realized by the prior art, the hydroxy acrylic resin, the special modified polyester resin and the adhesion promoter are added in the process of preparing the coating ink, the quick curing at the low temperature of 80 ℃, namely surface drying within 25 seconds, the covering performance is good, the alcohol resistance is excellent, the storage stability is good, the construction is easy, and the like, and the characteristics of good covering performance, alcohol resistance, blue and black resistance and the like can be achieved without the accumulation of various coatings; and when the requirement for reducing the color difference value L is met, and a layer of matte oil is required to be additionally coated on the surface of the black pattern layer, due to the good alcohol resistance and the excellent adhesive force, the matte oil cannot cause a bottom biting phenomenon on the black matrix, and the hidden danger that the coating falls off in the terminal application process is eliminated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
example (b):
a coating ink for PET film material quick low-temperature curing at 80 ℃ mainly comprises the following components:
Hydroxy acrylic resin: 10-15 parts;
special modified polyester resin: 13-20 parts;
An adhesion promoter: 3-8 parts;
Dispersing agent: 10-20 parts;
carbon black filler: 10-15 parts;
Blue pigment and filler: 2-5 parts;
matting and filling material: 6-10 parts;
Solvent: 20-30 parts of a solvent;
Auxiliary agent: 0.1 to 0.5 portion.
The hydroxyl acrylic resin is one or more of long-chain hydroxyl acrylic resin and branched-chain hydroxyl acrylic resin, the comprehensive solid content of the hydroxyl acrylic resin is 30-40%, the molecular weight range is 15000-25000, the glass transition temperature reaches 60-70 ℃, and the hydroxyl value range is 30-40 mgKOH/g.
the special modified polyester resin is one or more of direct-linked saturated polyester resin and branched-chain saturated polyester resin, wherein the molecular weight range of the saturated polyester resin in the special modified polyester resin is 20000-25000, the Tg point range is 10-15 ℃, the hydroxyl value range is 4-8mgKOH/g, and the acid value range is 0-3 KOH/g.
the adhesion promoter is one or more of amino resin and phenylated amino resin.
the dispersant is one or more of BYK-163, BYK-2013, Efka-4310, Efka-4585 and Youka 60S.
The carbon black filler is one or more of Degussa 4A, MA-7, Kabot 1200 and Mitsubishi MA 11.
the blue pigment and filler is one or more of phthalocyanine blue and milorin.
the solvent is one or more of acetone, butanone, ethyl ester and diethyl ether.
the auxiliary agent is one or more of organic tin drier, organic amine drier and organic bismuth drier.
In preparing the coating ink, step 1: preparing 12.5 parts of hydroxy acrylic resin and 16.5 parts of special modified polyester resin, and pre-compatibilizing the hydroxy acrylic resin and the special modified polyester resin;
The hydroxyl acrylic resin is one or more of long-chain hydroxyl acrylic resin and branched-chain hydroxyl acrylic resin, the comprehensive solid content of the hydroxyl acrylic resin is 35 percent, the molecular weight is 20000, the glass transition temperature reaches 65 ℃, and the hydroxyl value is 35mgKOH/g, the hydroxyl acrylic resin can accelerate the curing speed of the whole ink system, and the high-strength curing effect of the hydroxyl acrylic resin can greatly improve the alcohol resistance and scratch resistance of the coating; the special modified polyester resin is one or more of direct-connection saturated polyester resin and branched-chain saturated polyester resin, the molecular weight of the saturated polyester resin in the special modified polyester resin is 22500, the Tg point is 12.5 ℃, the hydroxyl value is 6mgKOH/g, and the acid value is 2KOH/g, the hydroxy acrylic resin and the special modified polyester resin have good compatibility and storage stability, the prepared ink coating has good appearance effect, high color development and excellent alcohol resistance, and meanwhile, the drying speed of the ink can be promoted, and the adhesive force of the ink on PET can be ensured;
Step 2: adding 15 parts of dispersing agent and 5.5 parts of adhesion promoter in the step 1, dispersing at the speed of 800rpm for 10 minutes;
The dispersing agent is one or more of BYK-163, BYK-2013, Efka-4310, Efka-4585 and Youka 60S, and can disperse high-pigment carbon black filler and blue pigment filler added in the subsequent steps, improve the blackness-level color-developing property of an ink layer, reduce the viscosity of the ink, prevent thixotropy and improve the insulating effect of an ink system; the adhesion promoter is one or more of amino resin and phenylated amino resin, the adhesion promoter has good identity with hydroxy acrylic resin and special modified polyester resin, turbidity cannot occur, the adhesion is easy to reduce due to the addition of the hydroxy acrylic resin, the added adhesion promoter can react with the hydroxy acrylic resin, a crosslinking network formed after reaction is firmer, and the adhesion is improved;
And step 3: after the step 2 is finished, pouring 12.5 parts of prepared carbon black filler and 2.5 parts of blue pigment filler, and dispersing for 40 minutes at the speed of 800 rpm;
The carbon black filler is one or more of Degussa 4A, MA-7, Kabot 1200 and Mitsubishi MA11, and the added carbon black filler needs to be pretreated, so that the construction is convenient, the tinting strength is stronger, and good blackness and covering are provided for an ink system; the blue pigment filler is one or more of phthalocyanine blue and milori blue, the blue pigment filler can improve the blue phase requirement after the ink film forming, does not influence the chromatic aberration L value and the a value of a coating film and the viscosity of the ink, and can achieve a matte black effect with blue phase and high blackness by matching the carbon black filler, the blue pigment filler and the extinction filler added in the subsequent steps, which is mainly reflected in that the gloss is 1 to 3Gs, the chromatic aberration L value ranges from 23 to 28, the chromatic aberration a value ranges from-1 to 1, the chromatic aberration b value ranges from-2 to 0, and the color difference is more attractive;
And 4, step 4: adding 8 parts of partially prepared solvent in the step 3, dispersing for 10 minutes at the speed of 1000rpm, grinding to obtain a semi-finished product after the required fineness is reached;
The solvent is one or more of acetone, butanone, ethyl ester and diethyl ether, can dissolve resin, adjust the viscosity of the ink and improve the compatibility among the resins, has low boiling point and high volatilization efficiency, and can be baked at low temperature to achieve the performance of quick surface drying;
And 5: adding 8 parts of partially prepared solvent into the semi-finished product prepared in the step 4, stirring, adding 8 parts of extinction filler in the stirring process, and grinding after uniformly stirring;
Step 6: after the step 5 is finished, adding 0.3 part of auxiliary agent and 9 parts of residual solvent into the obtained material, dispersing for 15 minutes at the speed of 1000rpm, and filtering after dispersion to obtain a finished product of the coating ink;
the auxiliary agent is one or more of an organic tin drier, an organic amine drier and an organic bismuth drier, the auxiliary agent can accelerate the reaction of hydroxyl in the resin binder and NCO groups in the isocyanate curing agent, so that the drying rate of the ink coating is improved, the use activation period of the ink is not influenced by a lower addition amount, and the reaction speed can be effectively improved;
| Serial number | Item | standard/index | operating instruments/Experimental methods | The result of the detection |
| 1 | Appearance of the product | No particles, no burr, uniform and light-tight coating | Visual inspection of | no particles, no burr, uniform and light-tight coating |
| 2 | speed of surface drying | The coating is folded in half and pressed for no back adhesion after 80 ℃ multiplied by 25s | oven, stopwatch | the coating is folded in half and pressed for 20s at 80 ℃ without being adhered back |
| 3 | Adhesion force | 5B | 3M600 tape three times | 5B |
| 4 | Viscosity (mpa.s) | 1000 to 1400 | brookfield viscometer | 1150 |
| 5 | Alcohol-resistant | 500g.f/50 times | abrasion resistance tester | 500g.f/50 times |
| 6 | Gloss (Gs) | 1 to 3 | gloss instrument | 2 |
| 7 | Fineness (mum) | ≤4 | ISO scraper blade fineness gauge | 4 |
| 8 | insulation property | ≥1012Ω | Surface resistance meter | ≥1012Ω |
| 9 | solid content (%) | 46 to 50 | Electronic balance | 48 to 49 |
| 10 | Color difference L value (SCI) | 23 to 28 | color difference meter | 25 |
| 11 | Color difference a value (SCI) | -1 to 1 | Color difference meter | 0.25 |
| 12 | color difference b value (SCI) | -2 to 0 | Color difference meter | -1 |
TABLE 1 coating ink performance standard for PET material curable at 80 deg.C
According to the embodiment and the table 1, the hydroxyl acrylic resin, the special modified polyester resin and the adhesion promoter are added in the process of preparing the coating ink, so that the coating ink can be quickly cured at the low temperature of 80 ℃, namely dried within 25 seconds, has the characteristics of good covering, excellent alcohol resistance, good storage stability, easiness in construction and the like, and does not need to be stacked with various coatings to achieve the characteristics of good covering, alcohol resistance, blue and black resistance and the like; and when the requirement for reducing the color difference value L is met, and a layer of matte oil is required to be additionally coated on the surface of the black pattern layer, due to the good alcohol resistance and the excellent adhesive force, the matte oil cannot cause a bottom biting phenomenon on the black matrix, and the hidden danger that the coating falls off in the terminal application process is eliminated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. a coating ink for PET film material quick low-temperature curing at 80 ℃ is characterized by mainly comprising the following components:
hydroxy acrylic resin: 10-15 parts;
special modified polyester resin: 13-20 parts;
an adhesion promoter: 3-8 parts;
Dispersing agent: 10-20 parts;
carbon black filler: 10-15 parts;
Blue pigment and filler: 2-5 parts;
Matting and filling material: 6-10 parts;
Solvent: 20-30 parts of a solvent;
Auxiliary agent: 0.1 to 0.5 portion.
2. The coating ink for the rapid low-temperature curing of the PET film material at the temperature of 80 ℃ according to claim 1, wherein the hydroxyl acrylic resin is one or more of long-chain hydroxyl acrylic resin and branched-chain hydroxyl acrylic resin, the comprehensive solid content of the hydroxyl acrylic resin is 30-40%, the molecular weight range is 15000-25000, the glass transition temperature reaches 60-70 ℃, and the hydroxyl value range is 30-40 mgKOH/g.
3. the coating ink for the rapid low-temperature curing of PET film material at 80 ℃ as claimed in claim 1, wherein the special modified polyester resin is one or more of a straight-chain saturated polyester resin and a branched-chain saturated polyester resin, the molecular weight range of the saturated polyester resin in the special modified polyester resin is 20000-25000, the Tg point range is 10-15 ℃, the hydroxyl value range is 4-8mgKOH/g, and the acid value range is 0-3 KOH/g.
4. the coating ink for the rapid low-temperature curing of the PET film material at 80 ℃ according to claim 1, wherein the adhesion promoter is one or more of amino resin and phenylated amino resin.
5. The coating ink for the PET film material capable of being rapidly cured at the low temperature of 80 ℃ is characterized in that the dispersing agent is one or more of BYK-163, BYK-2013, Efka-4310, Efka-4585 and Youka 60S.
6. The coating ink for the PET film material capable of being rapidly cured at the low temperature of 80 ℃ according to claim 1, wherein the carbon black filler is one or more of Degussa 4A, MA-7, Cabot 1200 and Mitsubishi MA 11.
7. The coating ink for the PET film material capable of being rapidly cured at low temperature of 80 ℃ according to claim 1, wherein the blue pigment and filler is one or more of phthalocyanine blue and milorin.
8. the coating ink for the rapid low-temperature curing of the PET film material at 80 ℃ according to claim 1, wherein the solvent is one or more of acetone, butanone, ethyl ester and diethyl ether.
9. The coating ink for the rapid low-temperature curing of the PET film material at 80 ℃ according to claim 1, wherein the auxiliary agent is one or more of an organic tin drier, an organic amine drier and an organic bismuth drier.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592789A (en) * | 2020-06-29 | 2020-08-28 | 滁州金桥德克新材料有限公司无锡分公司 | TP mylar composite material and ink composition thereof |
| CN114274681A (en) * | 2021-12-24 | 2022-04-05 | 湖南鼎一致远科技发展有限公司 | Alcohol-resistant resin carbon ribbon and preparation method thereof |
| CN114539863A (en) * | 2022-04-06 | 2022-05-27 | 卡秀万辉(无锡)高新材料有限公司 | Coating with excellent adhesion to PEEK material and preparation method thereof |
| CN115537066A (en) * | 2022-09-30 | 2022-12-30 | 苏州市贝特利高分子材料股份有限公司 | Super-matte scratch-resistant antistatic black ink and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592789A (en) * | 2020-06-29 | 2020-08-28 | 滁州金桥德克新材料有限公司无锡分公司 | TP mylar composite material and ink composition thereof |
| CN114274681A (en) * | 2021-12-24 | 2022-04-05 | 湖南鼎一致远科技发展有限公司 | Alcohol-resistant resin carbon ribbon and preparation method thereof |
| CN114274681B (en) * | 2021-12-24 | 2023-10-27 | 湖南鼎一致远科技发展有限公司 | Alcohol-resistant resin carbon ribbon and preparation method thereof |
| CN114539863A (en) * | 2022-04-06 | 2022-05-27 | 卡秀万辉(无锡)高新材料有限公司 | Coating with excellent adhesion to PEEK material and preparation method thereof |
| CN115537066A (en) * | 2022-09-30 | 2022-12-30 | 苏州市贝特利高分子材料股份有限公司 | Super-matte scratch-resistant antistatic black ink and preparation method thereof |
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