CN114702852A - Slow-drying type ink diluent and preparation method thereof - Google Patents
Slow-drying type ink diluent and preparation method thereof Download PDFInfo
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- CN114702852A CN114702852A CN202210435933.8A CN202210435933A CN114702852A CN 114702852 A CN114702852 A CN 114702852A CN 202210435933 A CN202210435933 A CN 202210435933A CN 114702852 A CN114702852 A CN 114702852A
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- 238000001035 drying Methods 0.000 title claims abstract description 65
- 239000003085 diluting agent Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims abstract description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 19
- -1 alkyl acetate Chemical compound 0.000 claims abstract description 19
- 229920002635 polyurethane Polymers 0.000 claims abstract description 19
- 239000004814 polyurethane Substances 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 17
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000008096 xylene Substances 0.000 claims abstract description 14
- 229920002396 Polyurea Polymers 0.000 claims abstract description 10
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 17
- 239000004202 carbamide Substances 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 15
- 239000008098 formaldehyde solution Substances 0.000 claims description 15
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 10
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 10
- 229920001223 polyethylene glycol Polymers 0.000 claims description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229920000162 poly(ureaurethane) Polymers 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 3
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 3
- 229940011051 isopropyl acetate Drugs 0.000 claims description 3
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a slow-drying type ink diluent and a preparation method thereof, belonging to the technical field of diluents and preparation thereof, and comprising cyclohexanone, alkyl acetate, xylene, a polyurethane acrylate prepolymer and a polyurea aldehyde, wherein the polyurethane acrylate prepolymer and the polyurea aldehyde in a formula system can coat the cyclohexanone, the alkyl acetate and the xylene, so that the volatilization time of the diluent is greatly reduced, and when the slow-drying type ink diluent is used, the surface drying speed of ink can be effectively reduced and the leveling time of the ink can be prolonged by mixing the slow-drying type ink diluent with the ink through screen pores, so that the appearance of an ink product is flat and smooth, and the quality of the ink product is improved. The slow-drying ink diluent is used for reducing the drying degree of the ink, can inhibit and slow down the drying speed of the ink, prevents the ink from drying on a printing plate, and reduces printing faults such as plate blockage, plate pasting and the like.
Description
Technical Field
The invention relates to the technical field of diluents and preparation thereof, in particular to a slow-drying type ink diluent and a preparation method thereof
Background
Ink is an important material for printing, and is used for expressing patterns and characters on a printing material through printing or inkjet. The ink comprises a main component and an auxiliary component which are uniformly mixed and repeatedly rolled to form a viscous colloidal fluid. Consists of a binder, a pigment, a filler, an auxiliary agent, a solvent and the like. The printing ink is used for various printing of books, periodicals, packaging decoration, building decoration, electronic circuit boards and the like. The ink thinner is used for reducing the viscosity of the ink and preventing the stripping phenomenon. If the drying speed of the diluent is too fast or the printing effect is not good during printing of the ink, the diluent with a certain proportion can be added, if the drying speed of the diluent is too fast, the leveling time of the ink is short, the appearance of an ink product is uneven and smooth, the ink can be dried on a printing plate, and printing faults such as plate blockage, plate pasting and the like occur.
Disclosure of Invention
The embodiment of the invention provides a slow-drying type ink diluent and a preparation method thereof, aiming at solving the problems that the appearance of an ink product is uneven and smooth due to the fact that the drying speed of the ink diluent is too high, the ink is dried on a printing plate, and printing faults such as plate blockage, plate pasting and the like occur in the prior art, and the contents of the slow-drying type ink diluent are as follows:
the invention aims to provide a slow-drying type ink diluent which is technically characterized by comprising 40-50 parts by weight of cyclohexanone, 20-25 parts by weight of alkyl acetate, 20-25 parts by weight of xylene, 20-25 parts by weight of urethane acrylate prepolymer and 20-25 parts by weight of polyurea-aldehyde.
In some embodiments of the present invention, the alkyl acetate in the slow drying ink diluent formulation is at least one of methyl acetate, ethyl acetate, isopropyl acetate, n-propyl acetate, and butyl acetate.
In some embodiments of the present invention, the urethane acrylate prepolymer in the slow drying ink thinner formulation system includes 1000 parts by weight of hexamethylene diisocyanate, 3.5 parts by weight of dibutyltin laurate, 500 parts by weight of polyethylene glycol, 2 parts by weight of hydroquinone, and 1200 parts by weight of hydroxyethyl acrylate.
In some embodiments of the present invention, the polyurea-formaldehyde in the slow drying ink diluent formulation includes 10 parts by weight of urea and 9-17 parts by weight of formaldehyde solution.
In some embodiments of the present invention, the mass fraction of the formaldehyde solution in the slow-drying ink diluent formulation is 30-40 wt%.
In some embodiments of the present invention, the slow-drying ink diluent is used in an amount of 1 to 5% by weight in the ink.
The invention also aims to provide a preparation method of the slow-drying ink diluent, which is technically characterized by comprising the following steps of:
step one, preparing the polyureaurethane: mixing urea and formaldehyde solution, stirring to dissolve urea, adjusting pH value to 8-9, stirring in a constant-temperature water bath at 70 ℃ for 1h to obtain polyurea formaldehyde, and cooling to room temperature for later use;
step two, preparing a polyurethane acrylate prepolymer: mixing hexamethylene diisocyanate and dibutyltin laurate, adjusting the pH value to 5, introducing dry nitrogen for 5-10min, uniformly stirring, heating to 40-50 ℃, dropping dehydrated polyethylene glycol into a flask, reacting for 2.5-3h, heating to 75-80 ℃, adding hydroquinone, dropping dehydrated hydroxyethyl acrylate, and reacting until-NCO groups completely disappear or the content is less than 0.5% to obtain the polyurethane acrylate prepolymer;
step three, preparing a slow-drying type ink diluent: mixing cyclohexanone, alkyl acetate and xylene, and dropwise adding the polyurea-aldehyde prepared in the step one; and (3) adjusting the pH value to 1.5, adding the polyurethane acrylate prepolymer prepared in the second step, reacting at 30-40 ℃ for 10min, further reacting at 60-80 ℃ for 2h, continuously stirring at constant temperature for 6-8h by magnetic force, and transferring the mixture into a refrigerator to obtain the slow-drying ink diluent.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
1. the slow-drying ink diluent comprises cyclohexanone, alkyl acetate, xylene, a polyurethane acrylate prepolymer and a polyurea aldehyde, wherein the polyurethane acrylate prepolymer and the polyurea aldehyde in the formula system can coat the cyclohexanone, the alkyl acetate and the xylene, so that the volatilization time of the diluent is greatly reduced, and when the slow-drying ink diluent is used, the surface drying speed of ink can be effectively reduced and the leveling time of the ink can be prolonged by mixing the slow-drying ink diluent with the ink through the screen pores, so that the appearance of an ink product is smooth and flat, and the quality of the ink product is improved. The slow-drying ink diluent is used for reducing the drying degree of the ink, can inhibit and slow down the drying speed of the ink, prevents the ink from drying on a printing plate, and reduces printing faults such as plate blockage, plate pasting and the like.
2. The amount of the slow-drying ink thinner is generally controlled to be 1-5% of the total ink amount, and if the amount of the thinner is too much, the ink is not completely dried, and printed matters are dirty or generate peculiar smell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
Example 1
A slow-dry type ink diluent comprises 55 parts by weight of cyclohexanone, 22.5 parts by weight of alkyl acetate, 22.5 parts by weight of xylene, 22.5 parts by weight of urethane acrylate prepolymer and 22.5 parts by weight of polyurea-aldehyde.
Further, the alkyl acetate in the slow drying type ink thinner formula system is ethyl acetate.
Further, the urethane acrylate prepolymer in the slow drying type ink diluent formulation system includes 1000 parts by weight of hexamethylene diisocyanate, 3.5 parts by weight of dibutyltin laurate, 500 parts by weight of polyethylene glycol, 2 parts by weight of hydroquinone and 1200 parts by weight of hydroxyethyl acrylate.
Further, the polyurea-formaldehyde in the slow dry type ink diluent formulation system includes 10 parts by weight of urea and 13 parts by weight of formaldehyde solution.
Furthermore, the mass fraction of the formaldehyde solution in the slow drying type ink thinner formula system is 35 wt%.
Furthermore, the usage amount of the slow-drying type ink diluent in the ink is 3%, the ink is coated on a substrate and dried for 6 hours at the temperature of 40-50 ℃, and the visible ink product is flat and smooth in appearance and free of plate blocking and pasting printing faults when observed by naked eyes.
According to the above formulation, the method for preparing the diluent of the slow drying ink of the present embodiment comprises the following steps:
step one, preparing the polyureaurethane: mixing urea and formaldehyde solution, stirring to dissolve urea, adjusting pH value to 8.5, stirring in a constant-temperature water bath at 70 ℃ for 1h to obtain polyurea formaldehyde, and cooling to room temperature for later use;
step two, preparing a polyurethane acrylate prepolymer: mixing hexamethylene diisocyanate and dibutyltin laurate, adjusting the pH value to 5, introducing dry nitrogen for 7min, uniformly stirring, heating to 45 ℃, dropping dehydrated polyethylene glycol into a flask, reacting for 2.5h, heating to 77 ℃, adding hydroquinone, dropping dehydrated hydroxyethyl acrylate, and reacting until all-NCO groups disappear or the content is less than 0.5% to obtain the polyurethane acrylate prepolymer;
step three, preparing a slow-drying type ink diluent: mixing cyclohexanone, alkyl acetate and xylene, and dropwise adding the polyurea-aldehyde prepared in the step one; and (3) adjusting the pH value to 1.5, adding the polyurethane acrylate prepolymer prepared in the second step, reacting for 10min at 35 ℃, reacting for 2h at 70 ℃, continuously stirring for 7h under constant temperature and magnetic force, and transferring the mixture to a refrigerator to obtain the slow-drying ink diluent.
Example 2
A slow-dry type ink diluent comprises 40 parts by weight of cyclohexanone, 20 parts by weight of alkyl acetate, 20 parts by weight of xylene, 20 parts by weight of urethane acrylate prepolymer and 20 parts by weight of polyurea-aldehyde.
Further, the alkyl acetate in the slow drying type ink thinner formula system is methyl acetate.
Further, the urethane acrylate prepolymer in the slow drying type ink diluent formulation system includes 1000 parts by weight of hexamethylene diisocyanate, 3.5 parts by weight of dibutyltin laurate, 500 parts by weight of polyethylene glycol, 2 parts by weight of hydroquinone and 1200 parts by weight of hydroxyethyl acrylate.
Further, the polyurea-formaldehyde in the slow dry type ink diluent formula system comprises 10 parts by weight of urea and 9 parts by weight of formaldehyde solution.
Furthermore, the mass fraction of the formaldehyde solution in the slow-drying type ink thinner formula system is 30 wt%.
Furthermore, the usage amount of the slow-drying type ink diluent in the ink is 1%, the ink is coated on a substrate and dried for 6 hours at the temperature of 40-50 ℃, and the visible ink product is flat and smooth in appearance and free of plate blocking and pasting printing faults when observed by naked eyes.
According to the above formulation, the method for preparing the diluent of the slow drying ink of the present embodiment comprises the following steps:
step one, preparing the polyureaurethane: mixing urea and formaldehyde solution, stirring to dissolve urea, adjusting pH value to 8, stirring in a constant-temperature water bath at 70 ℃ for reaction for 1h to obtain polyurea formaldehyde, and cooling to room temperature for later use;
step two, preparing a polyurethane acrylate prepolymer: mixing hexamethylene diisocyanate and dibutyltin laurate, adjusting the pH value to 5, introducing dry nitrogen for 5min, uniformly stirring, heating to 40 ℃, dropping dehydrated polyethylene glycol into a flask, reacting for 2.5h, heating to 75 ℃, adding hydroquinone, dropping dehydrated hydroxyethyl acrylate, and reacting until all-NCO groups disappear or the content is less than 0.5% to obtain the polyurethane acrylate prepolymer;
step three, preparing a slow-drying type ink diluent: mixing cyclohexanone, alkyl acetate and xylene, and dropwise adding the polyurea aldehyde prepared in the step one; and (3) adjusting the pH value to 1.5, adding the polyurethane acrylate prepolymer prepared in the second step, reacting for 10min at 30 ℃, reacting for 2h at 60 ℃, continuously stirring for 6h by constant temperature magnetic force, and transferring the mixture to a refrigerator to obtain the slow-drying ink diluent.
Example 3
A slow-dry type ink diluent comprises 50 parts by weight of cyclohexanone, 25 parts by weight of alkyl acetate, 25 parts by weight of xylene, 25 parts by weight of urethane acrylate prepolymer and 25 parts by weight of polyurea-aldehyde.
Further, the alkyl acetate in the slow drying type ink thinner formula system is isopropyl acetate.
Further, the urethane acrylate prepolymer in the slow drying ink thinner formulation system includes 1000 parts by weight of hexamethylene diisocyanate, 3.5 parts by weight of dibutyltin laurate, 500 parts by weight of polyethylene glycol, 2 parts by weight of hydroquinone, and 1200 parts by weight of hydroxyethyl acrylate.
Further, the polyurea-formaldehyde in the slow dry type ink diluent formulation system includes 10 parts by weight of urea and 17 parts by weight of formaldehyde solution.
Furthermore, the mass fraction of the formaldehyde solution in the slow-drying type ink thinner formula system is 40 wt%.
Furthermore, the consumption of the slow-drying type ink diluent in the ink is 5%, the ink is coated on a substrate and dried for 6 hours at the temperature of 40-50 ℃, and the visible ink product is flat and smooth in appearance and free from plate blocking and pasting printing faults when observed by naked eyes.
According to the above formulation, the method for preparing the diluent of the slow drying ink of the present embodiment comprises the following steps:
step one, preparing the polyureaurethane: mixing urea and formaldehyde solution, stirring to dissolve urea, adjusting pH value to 9, stirring in a constant-temperature water bath at 70 ℃ for reaction for 1h to obtain polyurea formaldehyde, and cooling to room temperature for later use;
step two, preparing a polyurethane acrylate prepolymer: mixing hexamethylene diisocyanate and dibutyltin laurate, adjusting the pH value to 5, introducing dry nitrogen for 10min, uniformly stirring, heating to 50 ℃, dripping dehydrated polyethylene glycol into a flask, reacting for 3h, heating to 80 ℃, adding hydroquinone, dripping dehydrated hydroxyethyl acrylate, and reacting until all-NCO groups disappear or the content of the-NCO groups is less than 0.5% to obtain the polyurethane acrylate prepolymer;
step three, preparing a slow-drying type ink diluent: mixing cyclohexanone, alkyl acetate and xylene, and dropwise adding the polyurea-aldehyde prepared in the step one; and (3) adjusting the pH value to 1.5, adding the polyurethane acrylate prepolymer prepared in the second step, reacting for 10min at 40 ℃, reacting for 2h at 80 ℃, continuously stirring for 8h by magnetic force at constant temperature, and transferring the mixture to a refrigerator to obtain the slow-drying ink diluent.
The above description is only an example of the present invention and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The slow-drying ink diluent is characterized by comprising 40-50 parts by weight of cyclohexanone, 20-25 parts by weight of alkyl acetate, 20-25 parts by weight of xylene, 20-25 parts by weight of urethane acrylate prepolymer and 20-25 parts by weight of polyurea-aldehyde.
2. The slow drying ink diluent of claim 1, wherein the alkyl acetate is at least one of methyl acetate, ethyl acetate, isopropyl acetate, n-propyl acetate, and butyl acetate.
3. The slow-drying ink diluent of claim 1, wherein the urethane acrylate prepolymer comprises, in parts by weight, 1000 parts by weight of hexamethylene diisocyanate, 3.5 parts by weight of dibutyltin laurate, 500 parts by weight of polyethylene glycol, 2 parts by weight of hydroquinone and 1200 parts by weight of hydroxyethyl acrylate.
4. The slow drying ink diluent of claim 1, wherein the polyurea-urea includes 10 parts by weight of urea and 9-17 parts by weight of formaldehyde solution.
5. The slow-drying ink diluent as claimed in claim 4, wherein the mass fraction of the formaldehyde solution is 30-40 wt%.
6. A slow drying ink diluent as claimed in any one of claims 1 to 5, wherein the slow drying ink diluent is present in the ink in an amount of from 1 to 5%.
7. The preparation method of the slow-drying ink diluent is characterized by comprising the following steps of:
step one, preparing the polyureaurethane: mixing urea and formaldehyde solution, stirring to dissolve urea, adjusting pH value to 8-9, stirring in a constant-temperature water bath at 70 ℃ for 1h to obtain polyurea formaldehyde, and cooling to room temperature for later use;
step two, preparing a polyurethane acrylate prepolymer: mixing hexamethylene diisocyanate and dibutyltin laurate, adjusting the pH value to 5, introducing dry nitrogen for 5-10min, uniformly stirring, heating to 40-50 ℃, dropping dehydrated polyethylene glycol into a flask, reacting for 2.5-3h, heating to 75-80 ℃, adding hydroquinone, dropping dehydrated hydroxyethyl acrylate, and reacting until-NCO groups completely disappear or the content is less than 0.5% to obtain the polyurethane acrylate prepolymer;
step three, preparing a slow-drying type ink diluent: mixing cyclohexanone, alkyl acetate and xylene, and dropwise adding the polyurea-aldehyde prepared in the step one; and (3) adjusting the pH value to 1.5, adding the polyurethane acrylate prepolymer prepared in the second step, reacting at 30-40 ℃ for 10min, reacting at 60-80 ℃ for 2h, continuously stirring at constant temperature for 6-8h by magnetic force, and transferring the mixture to a refrigerator to obtain the slow-drying ink diluent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210435933.8A CN114702852A (en) | 2022-04-24 | 2022-04-24 | Slow-drying type ink diluent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210435933.8A CN114702852A (en) | 2022-04-24 | 2022-04-24 | Slow-drying type ink diluent and preparation method thereof |
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| CN114702852A true CN114702852A (en) | 2022-07-05 |
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| CN202210435933.8A Pending CN114702852A (en) | 2022-04-24 | 2022-04-24 | Slow-drying type ink diluent and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634250A (en) * | 2012-04-18 | 2012-08-15 | 中国人民银行印制科学技术研究所 | Piezochromism anti-forgery ink |
| CN103030768A (en) * | 2013-01-06 | 2013-04-10 | 久盛地板有限公司 | Polyurethane acrylate prepolymer and preparation method thereof as well as paint prepared by same |
-
2022
- 2022-04-24 CN CN202210435933.8A patent/CN114702852A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634250A (en) * | 2012-04-18 | 2012-08-15 | 中国人民银行印制科学技术研究所 | Piezochromism anti-forgery ink |
| CN103030768A (en) * | 2013-01-06 | 2013-04-10 | 久盛地板有限公司 | Polyurethane acrylate prepolymer and preparation method thereof as well as paint prepared by same |
Non-Patent Citations (3)
| Title |
|---|
| 胡开堂 主编: "《纸页的结构与性能》", 31 January 2006, 中国轻工业出版社 * |
| 陈三斌等: "《新编240种实用化工产品配方与制造》", 31 March 2004, 金盾出版社 * |
| 陈道玉: "《商品学 （化工原材料）》", 30 June 1994, 中国物资出版社 * |
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Application publication date: 20220705 |