CN111440483A - High-temperature-resistant high-pressure-resistant press-fit removable washable ink and preparation method thereof - Google Patents
High-temperature-resistant high-pressure-resistant press-fit removable washable ink and preparation method thereof Download PDFInfo
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- CN111440483A CN111440483A CN202010413010.3A CN202010413010A CN111440483A CN 111440483 A CN111440483 A CN 111440483A CN 202010413010 A CN202010413010 A CN 202010413010A CN 111440483 A CN111440483 A CN 111440483A
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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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- 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
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
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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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- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a high-temperature and high-pressure resistant press-fit removable ink and a preparation method thereof, and the high-temperature and high-pressure resistant press-fit removable ink and the preparation method thereof are disclosed, wherein the ink comprises the following components: the acrylic copolymer resin is carboxyl-containing acrylic resin obtained by copolymerizing low-molecular-weight acrylic substances, the main chain of the carboxyl-containing acrylic resin is mainly linear chain, a carboxyl group is arranged on the side chain of each polymerization unit, the acid value of the carboxyl-containing acrylic copolymer resin is 80-200 mgKOH/g, and the molecular weight of the carboxyl-containing acrylic copolymer resin is 1000-5000, so that the ink coating film has certain toughness and still has proper alkali washing and film stripping capabilities after a high-temperature and high-pressure manufacturing process.
Description
Technical Field
The invention belongs to the technical field of electronic materials and the technical field of high polymer material chemical industry, and particularly relates to high-temperature and high-pressure resistant press-fit removable washable ink and a preparation method thereof.
Background
The development of a printed circuit board (PC circuit board) goes through the development process of single-sided-double-sided-multilayer + flex-rigid combination, a designer of the flex-rigid combination board can replace a composite printed circuit board formed by connecting a plurality of connectors, a plurality of cables and a ribbon cable by using a single assembly, the performance is higher, the stability is higher, meanwhile, the design range is limited in one assembly, the available space is optimized by bending and folding lines like a paper folding swan, the flex-rigid combination board changes the traditional planar design concept, the three-dimensional 3-dimensional space concept is enlarged, great convenience is brought to product design, and meanwhile, great challenges are brought.
The traditional PCB circuit board manufacturing process cannot meet the design and manufacture of the rigid-flex printed circuit board, so that the traditional silk-screen anti-corrosion ink cannot meet the requirements of a new manufacturing process; for example, document CN101220224B in the prior art discloses an alkali-resistant UV-curable etching-resistant ink, which contains alkali-soluble water-soluble resin, but the ink does not solve the problem that the flexibility requirement of the flexible board part can be realized, and the coating cracks; document CN105331185B discloses a deep-curing UV ink, which comprises thermoplastic acrylic resin, difunctional polyurethane acrylic resin, high-functional polyurethane acrylic resin, bisphenol a epoxy acrylate and trimethylolpropane triacrylate, but the ink does not solve the problem that the ink can not be easily washed off and can meet the requirements under the process conditions of high temperature and high pressure (400Psi, 180-.
Disclosure of Invention
The invention aims to solve the technical problem that the existing UV printing ink does not meet the requirement of realizing the process conditions of high temperature and high pressure (400Psi, 180-; aiming at the defects in the prior art, the invention aims to provide a high-temperature-resistant high-pressure-resistant press-fit washable ink and a preparation method thereof, wherein the ink comprises the following components: acrylic copolymer resin, an ultraviolet light initiator, a pigment, a filler, an auxiliary agent and a solvent, wherein the acrylic copolymer resin is carboxyl-containing acrylic resin obtained by copolymerization of low molecular weight acrylic substances, the main chain of the carboxyl-containing acrylic resin is mainly linear chain, a side chain of each polymerization unit is provided with carboxyl, the acid value of the carboxyl-containing acrylic copolymer resin is 80-200 mgKOH/g, the molecular weight of the carboxyl-containing acrylic copolymer resin is 1000-5000,
in the ink composition, the carboxyl-containing acrylic copolymer resin has a linear straight-chain structure of a polymer main chain, a side chain of each polymerization unit has carboxyl, the acid value of the carboxyl-containing acrylic copolymer resin is 80-200 mgKOH/g, and the molecular weight of the carboxyl-containing acrylic copolymer resin is 1000-5000, so that an ink coating film has certain toughness and still has proper alkali washing film-stripping capability after a high-temperature and high-pressure manufacturing process;
in the ink composition, the carboxyl-containing acrylic acid copolymer resin is obtained by adopting a proper molecular main chain structure and process conditions in a copolymerization mode, so that an ink coating has excellent flexibility and the problem of cracking is solved;
in the ink composition, the carboxyl-containing acrylic copolymer resin can provide the resin composition with alkali cleaning performance due to the existence of carboxyl, and the resin also has a certain unsaturated bond, so that the ink composition has photocurability, development resistance and corrosion resistance.
In the ink composition, the proper matching of the auxiliary agent and the solvent can ensure that the ink coating achieves a certain balance on various comprehensive performances;
in the ink composition, as long as the acrylic copolymer resin is a carboxyl-containing acrylic resin obtained by copolymerization of low molecular weight acrylic substances, the main chain of the carboxyl-containing acrylic resin is mainly linear chain, the side chain of each polymerization unit has carboxyl, and the carboxyl-containing acrylic resin meets the requirements of acid value and molecular weight, other compositions meeting the requirements can be matched to solve the technical problems of the invention,
the preferable carboxyl-contained acrylic copolymer resin is prepared from methacrylic acid, methyl methacrylate, cyclohexyl methacrylate and dibutyl itaconate, wherein the weight ratio of the methacrylic acid to the methyl methacrylate to the cyclohexyl methacrylate to the dibutyl itaconate is 4: 1-3: 1-3: 3-4;
preferably, the weight ratio of the methacrylic acid to the methyl methacrylate to the cyclohexyl methacrylate to the dibutyl itaconate is 4: 2: 2.5: 3.5;
preferably, the weight ratio of the carboxyl-containing acrylic copolymer resin to the ultraviolet initiator is 100: 2-8; preferably, the weight ratio of the carboxyl-containing acrylic copolymer resin to the ultraviolet initiator is 100: 3-5;
preferably, the sum of the weight of the carboxyl-containing acrylic copolymer resin and the ultraviolet initiator accounts for 40-60% of the total weight of the ink composition;
preferably, the weight of the pigment accounts for 0.5 to 3 percent of the total weight of the ink composition; preferably, the pigment weight is 0.8-1.5% of the total weight of the ink composition; preferably, the pigment comprises one or more of carbon black, phthalocyanine green, phthalocyanine blue and red yellow organic pigments;
preferably, the weight of the filler accounts for 10 to 30 percent of the total weight of the ink composition; preferably, the weight of the inorganic filler accounts for 10 to 20 percent of the total weight of the ink composition; preferably, the inorganic filler is selected from one or more of barium sulfate, barium titanate, calcium dioxide, talcum powder, fumed silica, clay, magnesium carbonate, calcium carbonate, alumina, mica powder and kaolin;
preferably, the paint also comprises one or more of a photoinitiator, an inorganic filler, a pigment, an organic solvent, a dispersing agent, a stabilizing agent, a defoaming agent, a leveling agent and an adhesion promoter;
preferably, the weight of the photoinitiator accounts for 1-6% of the total weight of the ink composition; preferably, the weight of the photoinitiator accounts for 1-4% of the total weight of the ink composition;
preferably, the photoinitiator is a benzine such as benzine, benzine methyl ether, benzine ethyl ether, benzine isopropyl ether, etc., and a benzine alkyl ether; or acetophenones such as acetophenone, 2-dimethoxy-2-phenylacetophenone, 2-diethoxy-2-phenylacetophenone and 1, 1-dichloroacetophenone; or aminoacetophenones such as 2-methyl-1- [4- (methylthio) phenyl ] -2-morpholino-1-propanone, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one, and N, N-dimethylaminoacetophenone; or anthraquinones such as 2-methylanthraquinone, 2-ethylanthraquinone, 2-tert-butylanthraquinone and 1-chloroanthraquinone; thioxanthones such as 2, 4-dimethylthioxanthone, 2, 4-diethylthioxanthone, 2-chlorothioxanthone and 2, 4-diisopropylthioxanthone; or ketals such as acetophenone dimethyl ketal and benzyl dimethyl ketal; or organic peroxides such as benzoyl peroxide and cumyl peroxide; or thiol compounds such as 2,4, 5-triarylimidazole dimer, riboflavin tetrabutyl ester, 2-mercaptobenzimidazole, 2-mercaptobenzoxazole and 2-mercaptobenzothiazole; or organic halides such as 2,4, 6-tris-s-triazine, 2,2, 2-tribromoethanol, tribromomethylphenyl ketone, etc.; or benzophenones such as benzophenone and 4, 4' -bisdiethylaminobenzophenone or thioxanthone; or a known photoinitiator such as 2,4, 6-trimethylbenzoyldiphenylphosphine oxide;
preferably, the weight of the organic solvent accounts for 10 to 25 percent of the total weight of the ink composition; preferably, the weight of the organic solvent accounts for 10-20% of the total weight of the ink composition;
preferably, the organic solvent is selected from one or more of ether solvents, ester solvents, ketone solvents, aromatic solvents and petroleum solvents; the ether solvent is preferably ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether or dipropylene glycol monobutyl ether; the ester solvent is preferably ethyl acetate, butyl acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, diethylene glycol monomethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol methyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monobutyl ether acetate, dipropylene glycol monomethyl ether acetate, dipropylene glycol monoethyl ether acetate, dipropylene glycol monobutyl ether acetate, or the like; the ketone solvent is preferably butanone, cyclohexanone or isophorone; the aromatic solvent is preferably toluene, xylene, tetramethylbenzene; the petroleum solvent is preferably naphtha, oxidized naphtha, solvent naphtha, etc.; these organic solvents may be used alone or in the form of a mixture thereof.
Preferably, the weight of the dispersant is 1-5% of the total weight of the ink composition; preferably, the weight of the dispersant accounts for 1 to 2 percent of the total weight of the ink composition;
the dispersant may be a dispersant commonly used in inks, for example: BKY-161, BYK-162, BYK-163, BYK-164, BYK-167, BYK-110, BYK-111, BKY-204, 17000, P800, 8000, 36600, 24000, 71000, 20000, P820, 8200, 27000, 44000, 47000, 32000, 39000, X300, 32500, 37500, 76500, 38500, 903, FX600, 929 of Demodex, etc., of Pico corporation;
preferably, the weight of the defoaming agent accounts for 0.6 to 2.0 percent of the total weight of the ink composition;
the defoaming agent may be a defoaming agent commonly used in inks, for example: BYK-051N, BYK-052N, BYK-057, BYK-1780, BYK-1785, BYK-1790, BYK-1794, BYK-8800, KS-66, KS-604, AFE-7610, AFE-7600, AFE-7620, AF-8014, ACP-0080, ACP-3188, SD-882, AK-350, SE-811, SE-47, SE-39, SE-8, SE-1060, SC-132, SC-370, SRECN, SP-150, SE-40, SE-2, SD-860, SD-986, SD-850, silicone antifoamers KM, KM-72, SKM-73, KM-73E, KM-75, 73A, KM-3573-75, KM-85, KM-89, KM-90, KM-98, KM-7750X-50-992, KM-7752, KS-508, KS-53 and the like;
preferably, the weight of the flatting agent accounts for 0.6 to 2.0 percent of the total weight of the ink composition;
the leveling agent may be a leveling agent commonly used in inks, for example: BYK333, BKY-354, BYK-361N, BYK-352, BYK-325, 495, 835, 837, 8629, 411, 435, 468, 455, 432, 810, 872, 876, 879, 882, TEGO410, 450, TEGOGlide100, TEGOFlow370, TEGOGlide482, TEGOGlide B1484, TEGOGlide432, etc., from Bikk.
The invention also provides a preparation method of the ink, which comprises the steps of mixing the raw materials according to a proportion, and then dispersing at a high speed and grinding to obtain the ink composition;
the invention also provides a using method of the ink, which comprises the step of applying the ink to a substrate and a process semi-finished product board of a PCB/FPC circuit board by a spraying method, a flow coating method, a roller coating method, a wire rod coating method or a screen printing method. Then curing at a temperature of 90 ℃ to 180 ℃;
the invention also provides the application of the ink, and the ink is used for local anti-corrosion protection in the process of manufacturing the PCB;
the invention has the beneficial effects that:
(1) the acrylic copolymer resin in the high-temperature-resistant high-pressure-resistant press-fit washable ink is carboxyl-containing acrylic resin obtained by copolymerizing low-molecular-weight acrylic substances, the main chain of the carboxyl-containing acrylic resin is mainly linear straight chain, a carboxyl group is arranged on a side chain of each polymerization unit, the acid value of the carboxyl-containing acrylic copolymer resin is 80-200 mgKOH/g, and the molecular weight of the carboxyl-containing acrylic copolymer resin is 1000-5000; the ink coating film has certain toughness and still has proper alkali washing film stripping capability after the high-temperature and high-pressure process;
(2) the carboxyl-containing acrylic copolymer resin in the ink composition adopts a proper molecular main chain structure and process conditions to obtain the carboxyl-containing acrylic resin in a copolymerization mode, so that an ink coating has excellent flexibility and the problem of cracking is solved;
(3) the carboxyl-containing acrylic copolymer resin in the ink composition can enable the resin composition to have alkali cleaning performance through the existence of carboxyl, and the resin also has a certain unsaturated bond so that the ink composition has photocurability, development resistance and corrosion resistance.
(4) The ink composition of the invention is matched with proper auxiliary agents and solvents, so that the ink coating can achieve a certain balance on various comprehensive performances.
Detailed Description
To facilitate understanding of the present invention, examples are given below which may further supplement and explain the present invention, but the present invention is not limited to these examples.
Firstly, the preparation of the acrylic copolymer resin in the high-temperature and high-pressure resistant laminating washable ink is specifically illustrated by examples:
example 1: preparation of carboxyl group-containing acrylic copolymer resin:
mixing methacrylic acid, methyl methacrylate, cyclohexyl methacrylate and dibutyl itaconate according to the proportion, uniformly stirring, adding 1% of reaction catalyst organic peroxide, uniformly stirring, and controlling the weight ratio of the methacrylic acid, the methyl methacrylate, the cyclohexyl methacrylate to the dibutyl itaconate to be 4: 1-3: 1-3: and 3-4, preparing a certain amount of organic solvent as a reaction substrate in a reaction kettle, and dropwise adding the prepared reactant mixed solution while stirring at 90-120 ℃ until the reactant mixed solution is completely added and reacts. Adjusting the reaction temperature and the stirring speed, adjusting the proportion of the four raw materials, respectively obtaining a product carboxyl acrylic acid copolymer resin A, B, C, D with the acid value of 80-200KOH/g and the weight average molecular weight of 1000-5000, and simultaneously expanding the proportion range of the four raw materials, so that the weight ratio of methacrylic acid, methyl methacrylate, cyclohexyl methacrylate to dibutyl itaconate is 4: 1-3: 1-3: 3-4, obtaining acrylic resins E, F, G and H; the specific acid value and weight average molecular weight of the acrylic resin A, B, C, D, E, F, G, H are shown in Table 1 below.
TABLE 1 acid value and weight average molecular weight of carboxyl group-containing acrylic resin
| Numbering | Ratio of | Acid value KOH/g | Weight average molecular weight |
| A | 4：2：2：3.5 | 120 | 3000 |
| B | 4：1.5：1.5：3.5 | 150 | 2500 |
| C | 4：2.5：2.5：4 | 100 | 4500 |
| D | 4：1.5：2.5：3.5 | 110 | 3200 |
| E | 4：3.5：3.5：4.5 | 70 | 2000 |
| F | 4：0.5：0.5：2 | 210 | 700 |
| G | 4：0.5：3.5：1 | 180 | 800 |
| H | 4：3.5：0.5：2 | 170 | 900 |
The acid value was determined by potassium hydroxide titration and the weight average molecular weight was determined by gel permeation chromatography.
Example 2: preparing high-temperature and high-pressure resistant press-fit washable ink:
respectively selecting different carboxyl-containing acrylic copolymer resins in example 1, mixing with 3g of photoinitiator (TPO purchased from Beijing Englim technology), 1g of pigment (MA-100 carbon black from Mitsubishi corporation), 1g of dispersant (BYK-204 from Bikk chemical company, Germany), 20g of inorganic filler (barium sulfate from Shahaben chemical company, Germany), 1g of defoamer (silicone defoamer KS-66 from Nippon Messaging chemical), 1g of flatting agent (BYK-354 from Bikk chemical company, Germany) and 15g of organic solvent (dipropylene glycol methyl ether DPM from Jiangsu Yida chemical company, Inc.), dispersing for 30 minutes at high speed by using a dispersion machine (U400\80-220 high-speed dispersion machine), and then grinding by using a three-roll grinder (S-65 grinder) to obtain ink with the grain diameter of less than 5 micrometers; the other components except the carboxyl group-containing acrylic copolymer resin are collectively referred to as "residual components" in the following table 3, and various high temperature and high pressure resistant press-washable inks were obtained from the carboxyl group-containing acrylic copolymer resin of example 1.
TABLE 3 high temperature and pressure resistant pressing removable ink compositions
Example 3: performance testing of ink-prepared coatings
Standard coating films were prepared from the high temperature and high pressure resistant press-washable inks 1 to 8 prepared in example 2, and the following properties of the coating films were evaluated.
1. Adhesion force
Inks 1 to 8 of example 2 were printed on the cleaned and dried substrate in their entirety by a screen printing method, and were dried in a hot air circulation type drying oven at 130 ℃ for 60 minutes, and then tested for adhesion by a cross-cut tape method. The adhesion was evaluated according to the following criteria.
○, no shedding at all;
× the edge of the grid line is broken.
2. Surface effects
The test specimens prepared in the same manner as in 1. above were observed by visual inspection. The surface effect was evaluated according to the following criteria.
○, smooth surface and no wrinkles;
× uneven or wrinkled surface.
3. Hardness of pencil
On the test specimen prepared in the same manner as in 1. above, a pencil of HB to 2H with the writing tip of the writing lead ground flat was pressed at an angle of 45 ° to measure the pencil hardness at which the coating film was not peeled off. Acid resistance was evaluated according to the following criteria.
○, the coating film is not peeled off;
× peeling off the coating film.
4. Alcohol-resistant wiping
The test panel prepared in the same manner as in 1. above was subjected to an alcohol wiping test. Alcohol rub resistance was evaluated according to the following criteria.
○, the coating film is not melted;
× the coating film is melted.
5. Acid resistance
The test panels prepared in the same manner as in 1. above were immersed in a 10 vol% aqueous H2SO4 solution for 30 minutes at room temperature, taken out, washed with water and dried. Peel tests were then performed using cellophane adhesive tape. Acid resistance was evaluated according to the following criteria.
○, the coating film has no peeling and discoloration;
× peeling and discoloration of the coating film.
Resistance to bending
A test piece prepared in the same manner as in 1. above using a flexible substrate was bent 50 times at a bending angle of 120 degrees with R of 2.0 mm.
○, no cracking of the coating film;
×, cracking of the coating film.
7. High temperature and high pressure resistance
The change in the ink coating film position was observed after the test panel prepared in the same manner as in 1. above was placed under pressure at a temperature of 200 ℃ and a pressure of 400Psi for 2 hours.
○, no cracking and overflow at all;
× cracking or overflow.
8. Film stripping performance
The test sample qualified in the above 7 tests was immersed in a 4% NaOH solution at 50 ℃ for 3 minutes and then rinsed with tap water.
○, completely washing;
× no washing or residue.
Specific results of evaluation indexes by coating films prepared for the ink compositions 1 to 8 are shown in the following Table 4.
Table 4: performance test results of coating films prepared from inks
As shown in Table 3, the high temperature and high pressure resistant press-washable ink coating films prepared from the inks 1, 2, 3 and 4 of the present invention showed good results in terms of adhesion, surface effect, pencil hardness, alcohol rub resistance, acid resistance, bending resistance, high temperature and high pressure resistance and film stripping performance.
On the contrary, if the carboxyl group-containing acrylic copolymer resin does not satisfy the performance index requirements, the ink coating film is not desired in the properties of bending resistance, high temperature and high pressure resistance and film-releasing properties, such as the coating films prepared from the ink compositions 5, 6, 7 and 8.
If the carboxyl group-containing acrylic resin does not satisfy the requirements, even if the ink coating film has satisfactory bending resistance, the high temperature and high pressure resistance and film-releasing property thereof may be unsatisfactory, for example, in the case of the coating film prepared from ink 5.
In conclusion, the washable ink capable of resisting high temperature and high pressure lamination solves the problem of coating cracking at the flexible plate part, and solves the problems of coating cracking, ink overflow and difficult washback under the process conditions of high temperature and high pressure (400Psi and 180-.
Claims (10)
1. The utility model provides a but that high temperature resistant high pressure pressfitting withdraws and washes printing ink which characterized in that: the ink consists of the following components: acrylic copolymer resin, ultraviolet initiator, pigment, filler, auxiliary agent and solvent; the acrylic copolymer resin is carboxyl-containing acrylic resin obtained by copolymerizing low-molecular-weight acrylic substances, the main chain of the carboxyl-containing acrylic resin is mainly linear straight chain, a carboxyl group is arranged on a side chain of each polymerization unit, the acid value of the carboxyl-containing acrylic copolymer resin is 80-200 mgKOH/g, the molecular weight of the carboxyl-containing acrylic copolymer resin is 1000-5000 and accounts for 40-60% of the total weight of the ink composition, the ultraviolet initiator composition accounts for 1-5% of the total weight of the ink composition, the pigment and the filler comprise material compositions with different oil absorption values and account for 10-30% of the total weight of the ink composition, the auxiliary agent and the solvent have good hydrophilic characteristics and account for 10-30% of the total weight of the ink composition; the carboxyl-containing acrylic copolymer resin is prepared from methacrylic acid, methyl methacrylate, cyclohexyl methacrylate and dibutyl itaconate; wherein the weight ratio of methacrylic acid, methyl methacrylate, cyclohexyl methacrylate to dibutyl itaconate is 4: 1-3: 1-3: 3-4.
2. A washable ink as defined in claim 1 that is resistant to high temperature and pressure lamination, wherein: the carboxyl-containing acrylic copolymer resin is prepared from methacrylic acid, methyl methacrylate, cyclohexyl methacrylate and dibutyl itaconate; wherein the weight ratio of methacrylic acid, methyl methacrylate, cyclohexyl methacrylate to dibutyl itaconate is 4: 2: 2.5: 3.5.
3. a washable ink as defined in claim 1 or 2, wherein said washable ink is a high temperature and high pressure resistant ink comprising: the weight ratio of the carboxyl-containing acrylic copolymer resin to the ultraviolet initiator is 100: 2-8.
4. A washable ink as defined in claim 1 or 2, wherein said washable ink is a high temperature and high pressure resistant ink comprising: the sum of the weight of the carboxyl-containing acrylic copolymer resin and the ultraviolet initiator accounts for 40-60% of the total weight of the ink composition.
5. A washable ink as defined in claim 1 or 2, wherein said washable ink is a high temperature and high pressure resistant ink comprising: the weight of the pigment and the filler accounts for 10-30% of the total weight of the ink.
6. A washable ink as defined in claim 5, wherein said washable ink is a high temperature and high pressure resistant ink comprising: the pigment accounts for 0.5-3% of the total weight of the ink composition, and the filler accounts for 10-30% of the total weight of the ink composition.
7. A washable ink as defined in claim 1 that is resistant to high temperature and pressure lamination, wherein: the ink composition further comprises one or more of a photoinitiator, an inorganic filler, a pigment, an organic solvent, a dispersing agent, a stabilizer, a defoaming agent, a leveling agent and an adhesion promoter.
8. A washable ink as defined in claim 7, wherein said washable ink is a high temperature and high pressure resistant ink comprising: the weight of the photoinitiator accounts for 1-6% of the total weight of the ink composition; the weight of the inorganic filler accounts for 10-30% of the total weight of the ink composition; the weight of the pigment accounts for 1-3% of the total weight of the ink composition; the weight of the organic solvent accounts for 10-25% of the total weight of the ink composition; the weight of the dispersant accounts for 1 to 5 percent of the total weight of the ink composition; the weight of the stabilizer accounts for 0.1 to 2.0 percent of the total weight of the ink composition; the weight of the defoaming agent accounts for 0.6 to 2.0 percent of the total weight of the ink composition; the weight of the flatting agent accounts for 0.6 to 2.0 percent of the total weight of the printing ink; the weight of the adhesion promoter accounts for 0.1 to 2 percent of the total weight of the ink composition.
9. A preparation method of high-temperature-resistant and high-pressure-resistant laminated ink capable of being washed and removed is characterized by comprising the following steps: the preparation method comprises the following steps: applying the ink composition according to any one of claims 1 to 8 to a printed circuit board on which an ink coating film is previously formed by a spray coating method, a flow coating method, a roll coating method, a wire bar coating method, or a screen printing method, and then curing at a temperature of 90 ℃ to 180 ℃.
10. The application of the removable washable ink with high temperature and high pressure resistance is characterized in that: the high-temperature and high-pressure lamination resistant washable ink is according to any one of claims 1-8, and is used for protecting a printed circuit board in a process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413010.3A CN111440483B (en) | 2020-05-15 | 2020-05-15 | High-temperature-resistant high-pressure-resistant press-fit removable washable ink and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413010.3A CN111440483B (en) | 2020-05-15 | 2020-05-15 | High-temperature-resistant high-pressure-resistant press-fit removable washable ink and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111440483A true CN111440483A (en) | 2020-07-24 |
| CN111440483B CN111440483B (en) | 2022-03-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007224154A (en) * | 2006-02-23 | 2007-09-06 | Toyo Ink Mfg Co Ltd | Aqueous lithographic printing ink and printed matter |
| CN101268418A (en) * | 2005-09-15 | 2008-09-17 | 日本化药株式会社 | Photosensitive resin composition and cured object obtained therefrom |
| CN107203095A (en) * | 2017-07-19 | 2017-09-26 | 江苏广信感光新材料股份有限公司 | A kind of solvable photosensitive composite of white alkali and preparation method and application |
| CN107286747A (en) * | 2017-08-15 | 2017-10-24 | 深圳市容大感光科技股份有限公司 | A kind of photosensitive black ink composition of 3D glass and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101268418A (en) * | 2005-09-15 | 2008-09-17 | 日本化药株式会社 | Photosensitive resin composition and cured object obtained therefrom |
| JP2007224154A (en) * | 2006-02-23 | 2007-09-06 | Toyo Ink Mfg Co Ltd | Aqueous lithographic printing ink and printed matter |
| CN107203095A (en) * | 2017-07-19 | 2017-09-26 | 江苏广信感光新材料股份有限公司 | A kind of solvable photosensitive composite of white alkali and preparation method and application |
| CN107286747A (en) * | 2017-08-15 | 2017-10-24 | 深圳市容大感光科技股份有限公司 | A kind of photosensitive black ink composition of 3D glass and preparation method thereof |
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