CN115678344B - Water-based pigment ink - Google Patents
Water-based pigment ink Download PDFInfo
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- CN115678344B CN115678344B CN202211305783.5A CN202211305783A CN115678344B CN 115678344 B CN115678344 B CN 115678344B CN 202211305783 A CN202211305783 A CN 202211305783A CN 115678344 B CN115678344 B CN 115678344B
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- 239000000049 pigment Substances 0.000 title claims abstract description 157
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- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 31
- 229920001577 copolymer Polymers 0.000 claims abstract description 31
- 229920000570 polyether Polymers 0.000 claims abstract description 31
- 239000000654 additive Substances 0.000 claims abstract description 28
- 230000000996 additive effect Effects 0.000 claims abstract description 27
- 239000004094 surface-active agent Substances 0.000 claims abstract description 27
- 239000002904 solvent Substances 0.000 claims abstract description 20
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 19
- 239000012860 organic pigment Substances 0.000 claims description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
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- 150000003077 polyols Chemical class 0.000 claims description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 9
- 150000005215 alkyl ethers Chemical class 0.000 claims description 8
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- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 claims description 5
- YEYKMVJDLWJFOA-UHFFFAOYSA-N 2-propoxyethanol Chemical compound CCCOCCO YEYKMVJDLWJFOA-UHFFFAOYSA-N 0.000 claims description 5
- 150000005846 sugar alcohols Polymers 0.000 claims description 5
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229940015975 1,2-hexanediol Drugs 0.000 claims description 3
- QWOZZTWBWQMEPD-UHFFFAOYSA-N 1-(2-ethoxypropoxy)propan-2-ol Chemical compound CCOC(C)COCC(C)O QWOZZTWBWQMEPD-UHFFFAOYSA-N 0.000 claims description 3
- WDQFELCEOPFLCZ-UHFFFAOYSA-N 1-(2-hydroxyethyl)pyrrolidin-2-one Chemical compound OCCN1CCCC1=O WDQFELCEOPFLCZ-UHFFFAOYSA-N 0.000 claims description 3
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 3
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 claims description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 3
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 claims description 3
- HHAPGMVKBLELOE-UHFFFAOYSA-N 2-(2-methylpropoxy)ethanol Chemical compound CC(C)COCCO HHAPGMVKBLELOE-UHFFFAOYSA-N 0.000 claims description 3
- DJCYDDALXPHSHR-UHFFFAOYSA-N 2-(2-propoxyethoxy)ethanol Chemical compound CCCOCCOCCO DJCYDDALXPHSHR-UHFFFAOYSA-N 0.000 claims description 3
- XYVAYAJYLWYJJN-UHFFFAOYSA-N 2-(2-propoxypropoxy)propan-1-ol Chemical compound CCCOC(C)COC(C)CO XYVAYAJYLWYJJN-UHFFFAOYSA-N 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 claims description 3
- LDMRLRNXHLPZJN-UHFFFAOYSA-N 3-propoxypropan-1-ol Chemical compound CCCOCCCO LDMRLRNXHLPZJN-UHFFFAOYSA-N 0.000 claims description 3
- 235000019437 butane-1,3-diol Nutrition 0.000 claims description 3
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 claims description 3
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 3
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 claims description 3
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 claims description 3
- FHKSXSQHXQEMOK-UHFFFAOYSA-N hexane-1,2-diol Chemical compound CCCCC(O)CO FHKSXSQHXQEMOK-UHFFFAOYSA-N 0.000 claims description 3
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 3
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 3
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 43
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- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000976 ink Substances 0.000 description 134
- 230000000052 comparative effect Effects 0.000 description 12
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
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- 238000005516 engineering process Methods 0.000 description 5
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- 235000011187 glycerol Nutrition 0.000 description 5
- 125000001165 hydrophobic group Chemical group 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
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- 229960004063 propylene glycol Drugs 0.000 description 4
- 235000013772 propylene glycol Nutrition 0.000 description 4
- HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical group [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229920005749 polyurethane resin Polymers 0.000 description 3
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- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
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- 229940093476 ethylene glycol Drugs 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229960005150 glycerol Drugs 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000007592 spray painting technique Methods 0.000 description 2
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- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical group C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- VPWFPZBFBFHIIL-UHFFFAOYSA-L disodium 4-[(4-methyl-2-sulfophenyl)diazenyl]-3-oxidonaphthalene-2-carboxylate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 VPWFPZBFBFHIIL-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
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Abstract
The application relates to the technical field of printing, in particular to water-based pigment ink which comprises the following components in percentage by weight: 3-10% of pigment toner, 15-35% of solvent, 0.5-2% of surface active additive and the balance of water; wherein the surface active additive consists of polyether siloxane copolymer and organosilicon gemini structure surfactant, and the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is (3-5): 1. The water-based pigment ink provided by the application is added with the surface active additive composed of the polyether siloxane copolymer and the organosilicon gemini structure with the mass ratio of (3-5): 1, so that the surface tension and viscosity of the ink are adjusted, the smoothness of the ink is better, the blockage of an ink-jet head can be reduced, and the service life of the ink-jet head is prolonged; the ink with better fluency can adapt to the continuous high-speed printing process, so that the ink has the advantages of sharp and clear characters and patterns when being printed on paper; meanwhile, the surface active additive can improve the stability of the ink and prevent the phenomena of layering, flooding, condensation or precipitation of the water-based pigment ink.
Description
[ field of technology ]
The application relates to the technical field of printing, in particular to water-based pigment ink.
[ background Art ]
With the development of social culture, science and technology and economy, the printing industry is developing at an unprecedented speed, and the printing ink is an important material for printing, and the printer is used for printing books and periodicals, package decoration, architectural decoration, electronic circuit boards and the like by printing or spray painting to display patterns and characters on a substrate. The existing printers mainly comprise an inkjet printer and a digital blueprint printer.
Along with the higher and higher performance detail requirement of users to drawing printing, thermal foaming ink-jet printing technology appears, and the working principle is as follows: the thin film resistor is used for heating the ink to more than 300 ℃ instantly to form tiny bubbles, the bubbles are gathered into large bubbles at extremely high speed and spread, the ink drops are forced to be ejected from the nozzle, and richer blended colors and smoother mesh can be generated. However, the stability of the existing ink is poor after being heated in the printing preparation stage, and the subsequent printing quality is affected; in the printing stage, the smoothness of ink discharge can not meet the high-speed ink discharge process of thermal foaming printing, so that the printing efficiency is affected, the ink jet head of the printer is blocked, and the service life of the ink jet head is shortened.
[ application ]
In view of the above, the present application provides an aqueous pigment ink with good fluidity and stability, and a thermal foaming inkjet printer using the aqueous pigment ink, which ensures smooth printing process and better printing effect.
The embodiment of the application provides aqueous pigment ink, which comprises the following components in percentage by weight: 3-10% of pigment toner, 15-35% of solvent, 0.5-2% of surface active additive and the balance of water; the surface active additive consists of polyether siloxane copolymer and organosilicon gemini structure surfactant, and the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is (3-5): 1.
In one possible embodiment, the polyether siloxane copolymer comprises at least one of the dihomo Wet series 270, the dihomo Wet series 500, the dihomo Wet series KL 245.
In one possible embodiment, the silicone gemini surfactant comprises at least one of the dihomo Twin-structure surfactant 4000 series, the dihomo Twin4100 series, and the dihomo Twin-structure surfactant 4200 series.
In one possible embodiment, the solvent comprises at least one of a polyol and a lower alkyl ether of a polyol.
In one possible embodiment, the polyol comprises at least one of glycerol, ethylene glycol, propylene glycol, 1, 2-hexanediol, 1, 2-glycerol, 1, 2-propanediol, diethylene glycol, triethylene glycol, 1, 3-butanediol, 2, 3-butanediol, 1, 4-butanediol, 2-pyrrolidone, N-methyl-2-pyrrolidone, hydroxyethyl pyrrolidone.
In one possible embodiment, the lower alkyl ether of the polyol includes at least one of glycerol ether, triethylene glycol monobutyl ether, ethylene glycol monopropyl ether, ethylene glycol isopropyl ether, ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether.
In one possible embodiment, the pigment toner includes at least one of a black organic pigment, a red organic pigment, a magenta organic pigment, a yellow organic pigment, and a blue organic pigment.
In one possible embodiment, the aqueous pigment ink further comprises a resin, wherein the mass ratio of the resin in the aqueous pigment ink is 1% -5%.
In one possible embodiment, the aqueous pigment ink further comprises a preservative, wherein the mass ratio of the preservative in the aqueous pigment ink is 0.1% -0.5%.
In one possible embodiment, the viscosity of the aqueous pigment ink is 2.0 mPas to 4.0 mPas and the surface tension of the aqueous pigment ink is 20mN/m to 40mN/m.
The beneficial effects of the application are as follows:
the water-based pigment ink provided by the application is added with the surface active additive composed of the polyether siloxane copolymer and the organosilicon gemini structure with the mass ratio of (3-5): 1, so that the surface tension and viscosity of the water-based pigment ink are adjusted, the smoothness of the water-based pigment ink is better, the blockage of an ink-jet head can be reduced, and the service life of the ink-jet head is prolonged; the water-based pigment ink with better fluency can adapt to the continuous high-speed printing process, so that the water-based pigment ink has the advantages of sharp and clear characters and patterns when printed on paper; meanwhile, the surface active additive can improve the stability of the water-based pigment ink and prevent the phenomena of layering, flooding, condensation or precipitation of the water-based pigment ink.
[ detailed description ] of the application
In order to better understand the technical scheme of the present application, the following detailed description of the embodiments of the present application is provided.
It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
With the development of social culture, science and technology and economy, the printing industry is developing at an unprecedented speed, and the printing ink is an important material for printing, and the printer is used for printing books and periodicals, package decoration, architectural decoration, electronic circuit boards and the like by printing or spray painting to display patterns and characters on a substrate. The existing printers mainly comprise an inkjet printer and a digital blueprint printer.
Along with the higher and higher performance detail requirement of users to drawing printing, thermal foaming ink-jet printing technology appears, and the working principle is as follows: the thin film resistor is used for heating the ink to more than 300 ℃ instantly to form tiny bubbles, the bubbles are gathered into large bubbles at extremely high speed and spread, the ink drops are forced to be ejected from the nozzle, and richer blended colors and smoother mesh can be generated. However, the stability of the existing ink is poor after being heated in the printing preparation stage, and the subsequent printing quality is affected; in the printing stage, the smoothness of ink discharge can not meet the high-speed ink discharge process of thermal foaming printing, so that the printing efficiency is affected, the ink jet head of the printer is blocked, and the service life of the ink jet head is shortened.
In view of this, the present application provides an aqueous pigment ink comprising the following components in weight percent: 3-10% of pigment toner, 15-35% of solvent, 0.5-2% of surface active additive and the balance of water; the surface active additive consists of polyether siloxane copolymer and organosilicon gemini structure surfactant, and the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is (3-5): 1.
In the scheme, the water-based pigment ink provided by the application is added with the surface active additive composed of the polyether siloxane copolymer and the organosilicon gemini structure with the mass ratio of (3-5): 1, so that the surface tension and viscosity of the water-based pigment ink are adjusted, the smoothness of the water-based pigment ink is better, the blockage of an ink-jet head can be reduced, and the service life of the ink-jet head is prolonged; the water-based pigment ink with better fluency can adapt to the continuous high-speed printing process, so that the water-based pigment ink has the advantages of sharp and clear characters and patterns when printed on paper; meanwhile, the surface active additive can improve the stability of the water-based pigment ink and prevent the phenomena of layering, flooding, condensation or precipitation of the water-based pigment ink.
In some embodiments, the balance of water used in the ink may be at least one of tap water, deionized water, distilled water, preferably deionized water, so as to reduce impurities in the ink and reduce the influence on other components in the ink.
In some embodiments, the pigment toner employed in the aqueous pigment ink of the present application includes at least one of a black organic pigment, a red organic pigment, a magenta organic pigment, a yellow organic pigment, and a blue organic pigment. Among them, the black organic pigment is preferably pigment black 7, pigment black 11, or the like; the red or magenta organic pigment is preferably pigment violet 19, pigment red 122, pigment red 146, pigment red 176, pigment red 184, pigment red 185, pigment red 202, pigment red 207, pigment red 209, pigment red 254, pigment red 269, pigment red 282, and the like; the yellow organic pigment is preferably pigment yellow 17, pigment yellow 74, pigment yellow 83, pigment yellow 128, pigment yellow 139, pigment yellow 150, pigment yellow 151, pigment yellow 154, pigment yellow 155, pigment yellow 180, pigment yellow 181, pigment yellow 185, pigment yellow 213, or the like; the blue organic pigment is preferably pigment blue 15, pigment blue 15:3, pigment blue 15:4, pigment blue 60, etc.
As an alternative technical scheme of the application, the weight percentage of the pigment toner is 3% -10%, and optionally, the weight percentage of the solvent can be 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% and the like, or can be other values within a range, can be selected according to actual needs, and is not limited herein. In the above range of the weight percentage of the pigment toner, the prepared aqueous pigment ink has good color saturation.
In some embodiments, a surface active additive composed of a polyether siloxane copolymer and a silicone gemini surfactant may improve the performance of the aqueous pigment ink.
Firstly, the surface active additive can adjust the surface tension of the ink, and ensure the ink discharge and imaging effects in the printing process. Specifically, deionized water is added into the water-based pigment ink, the surface tension of the deionized water is higher than that of a printing carrier, so that the water-based pigment ink cannot be imaged on the printing carrier, and therefore, a surface active additive is added, the surface active additive comprises hydrophilic groups and hydrophobic groups, when the surface active additive is added into the ink, the hydrophilic groups face to an ink water phase, and the hydrophobic groups face to an air phase, so that a layer of hydrophobic groups are distributed on the surface of the ink, the surface energy of the hydrophobic groups is low, and the surface tension of the water-based pigment ink is reduced.
In addition, in order to ensure the coloring durability of the aqueous pigment ink, the pigment toner is hydrophobic particles, and when the pigment toner is dispersed in deionized water, the hydrophobic groups of the surface active additive have strong affinity with the pigment toner, so that the two are easy to combine, the pigment toner particles are uniformly dispersed in the deionized water, and the phenomena of layering, flooding, agglomeration or precipitation and the like of the aqueous pigment ink in the storage or use process are prevented.
As an alternative technical scheme of the application, the weight percentage of the surface active additive is 0.5% -2%, and the addition weight percentage of the surface active additive can be 0.5%, 0.7%, 0.9%, 1.1%, 1.3%, 1.5%, 1.7%, 1.9%, 2% and the like, can be other values within a range, can be selected according to actual needs, and is not limited herein. If the weight percentage of the surface active additive is too low, the surface tension of the aqueous pigment ink is too high, the phenomenon of no ink output is easily caused in the printing process, and the stability of the aqueous pigment ink is influenced; if the weight percentage of the surface active additive is too high, uniform and stable ink drops cannot be formed, and the ink is easy to drop directly in the printing process, so that the printing quality is affected.
As an alternative technical scheme of the application, the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is (3-5) 1, and the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant can be specifically 3: 1. 7: 2. 4: 1. 9:2 or 5:1, etc., may be any other value within the range, and may be selected according to actual needs, and is not limited herein. If the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is greater than 5:1, namely the polyether siloxane copolymer has too large proportion and the organosilicon gemini structure surfactant has too small proportion, which is helpful for eliminating foam, but the surface tension of the water-based pigment ink can not meet the required requirement; if the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is less than 3:1, i.e., the ratio of the organosilicon gemini structure surfactant is too large and the ratio of the polyether siloxane copolymer is too small, the rupture of bubbles in the aqueous pigment ink can be inhibited, and the quality of the aqueous pigment ink is affected.
The polyether siloxane copolymer used in the present application includes at least one of the dihigh Wet series 270, the dihigh Wet series 500 and the dihigh Wet series KL245, and the silicone gemini surfactant includes at least one of the dihigh Twin4000 series, the dihigh Twin4100 series and the dihigh Twin4200 series, and the types of the polyether siloxane copolymer and the silicone gemini surfactant may be selected according to actual needs, and are not limited herein.
In some embodiments, the solvent has the effect of improving the dispersion stability of the pigment toner in the ink, and the solvent includes at least one of a polyol and a lower alkyl ether of the polyol. Optionally, the polyol comprises at least one of glycerol, ethylene glycol, propylene glycol, 1, 2-hexanediol, 1, 2-glycerol, 1, 2-propanediol, diethylene glycol, triethylene glycol, 1, 3-butanediol, 2, 3-butanediol, 1, 4-butanediol, 2-pyrrolidone, N-methyl-2-pyrrolidone, hydroxyethyl pyrrolidone; the lower alkyl ether of the polyhydric alcohol includes at least one of glycerin ether, triethylene glycol monobutyl ether, ethylene glycol monopropyl ether, ethylene glycol isopropyl ether, ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether. The kind of the solvent may be selected according to actual needs, and is not limited herein.
It is to be understood that the above solvents may be used singly or in combination of two or more, and when two or more are selected for use, the use of polyhydric alcohols may be used, for example, the use of glycerin and ethylene glycol may be selected as the solvents, the use of lower alkyl ethers of polyhydric alcohols may be selected, for example, the use of ethylene glycol monopropyl ether and ethylene glycol isopropyl ether may be selected as the solvents, the use of lower alkyl ethers of polyhydric alcohols may be selected, for example, the use of ethylene glycol and ethylene glycol monopropyl ether may be selected as the solvents. Preferably, the solvent adopted by the application is a mixture of glycerol, triglycol and triethylene glycol monobutyl ether, and the glycerol has excellent water retention property, high boiling point and difficult volatilization, and is beneficial to improving the moisture retention property of the ink; triethylene glycol has high boiling point and good low-temperature performance, and is beneficial to the stability of ink in high-temperature and low-temperature environments; the triethylene glycol monobutyl ether can improve the permeability, fluency and solubility of the ink, and the three components can ensure that the printing performance of the water-based pigment ink is better.
As an alternative technical scheme of the application, the weight percentage of the solvent is 15% -35%, and the weight percentage of the solvent can be 15%, 20%, 25%, 30%, 35% and the like, can be other values within the range, can be selected according to actual needs, and is not limited. The weight percentage of the solvent is within the above range, and the pigment toner can be better dissolved and uniformly dispersed in the ink.
In some embodiments, the aqueous pigment ink further includes a resin that acts as a vehicle for dispersing the pigment toner and other additives that affect the performance and printing performance of the ink. The resin includes at least one of polyurethane resin, acrylic resin, styrene-acrylic resin, and polyester resin, and may be selected according to actual needs, and is not limited herein. Preferably, the resin used in the application is polyurethane resin, and the polyurethane resin has good pigment dispersibility, so that the tinting strength of the ink is better, and the adhesive force of the aqueous pigment ink and a printing carrier can be further enhanced.
As an optional technical scheme of the present application, the mass ratio of the resin in the aqueous pigment ink is 1% -5%, and the mass ratio of the binder in the aqueous pigment ink may be 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 5%, etc., or may be other values within a range, and may be selected according to actual needs, which is not limited herein.
In some embodiments, the aqueous pigment ink further includes a preservative, where the preservative is PROXEL GXL, and the mass ratio of the preservative in the aqueous pigment ink is 0.1% -0.5%, alternatively, the mass ratio of the preservative in the aqueous pigment ink may be specifically 0.1%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5%, etc., and may also be other values within a range, and may be selected according to actual needs, and is not limited herein.
In the practical application process, the viscosity of the aqueous pigment ink provided by the application is 2.0 mPas-4.0 mPas, the viscosity of the aqueous pigment ink can be specifically 2 mPas, 2.3 mPas, 2.6 mPas, 2.9 mPas, 3.2 mPas, 3.5 mPas, 3.8 mPas, 4 mPas and the like, and can be other values within a range, and the viscosity can be selected according to practical needs without limitation. The surface tension of the aqueous pigment ink may be 20mN/m to 40mN/m, specifically 20mN/m, 25mN/m, 30mN/m, 35mN/m, 40mN/m, etc., or may be any other value within a range, and may be selected according to actual needs, and is not limited thereto. The viscosity and the surface tension of the aqueous pigment ink are controlled within the above ranges, and the smoothness of the aqueous pigment ink in printing can be improved.
The present application will be further described below with reference to a method for producing an aqueous pigment ink according to the present application.
The preparation method of the water-based pigment ink comprises the following steps:
step S10, respectively weighing 3-10% of pigment toner, 15-35% of solvent, 0.5-2% of surface active additive and the balance of deionized water according to weight percentage;
step S20, adding a solvent into deionized water, stirring for 15-30 min, and uniformly mixing; adding the surface active additive, stirring for 15-30 min, and uniformly mixing; finally adding pigment toner, stirring for 30-60 min, and uniformly mixing to obtain a mixed material; wherein, the stirring can be any one of mechanical stirring and ultrasonic stirring.
And step S30, filtering the mixed material obtained in the step S20 by adopting a filter membrane to obtain the water-based pigment ink.
The water-based pigment ink obtained by the preparation method has simple production process, can realize large-scale industrial production, and has good stability; the ink has good fluency, is suitable for a high-speed printer, and can also ensure the service life of an ink-jet head of the printer; the ink has good printing effect, and the printed characters and patterns are sharp and clear.
The following examples are provided to further illustrate embodiments of the application. The embodiments of the present application are not limited to the following specific embodiments. The modification can be appropriately performed within the scope of protection.
The percentages of the components mentioned above and below are weight percentages, and the percentages of the components account for the total weight of the aqueous pigment ink except for the specific descriptions.
1. Preparation of aqueous pigment ink
Examples 1 to 4: examples 1 to 4 were prepared from Black (BK) aqueous pigment ink, blue (C) aqueous pigment ink, red (M) aqueous pigment ink, and yellow (Y) aqueous pigment ink, respectively, each of which was prepared in the weight percentages shown in table 1 below.
Table 1: aqueous pigment ink configurations of examples 1 to 4
2. Preparation of common aqueous pigment ink
Comparative examples 1 to 4: black (BK) normal aqueous pigment ink, blue (C) normal aqueous pigment ink, red (M) normal aqueous pigment ink, yellow (Y) normal aqueous pigment ink, comparative examples 1 to 4, respectively, were formulated without polyether siloxane copolymer and silicone gemini surfactant according to the weight percentage compositions shown in table 2 below.
Table 2: aqueous pigment ink formulations of comparative examples 1 to 4
3. Preparation of aqueous pigment ink
Comparative examples 5 to 8: the polyether siloxane copolymer was formulated with a ratio of silicone gemini surfactant of less than 3:1 by weight as shown in Table 3 below as Black (BK) normal aqueous pigment ink, blue (C) normal aqueous pigment ink, red (M) normal aqueous pigment ink, yellow (Y) normal aqueous pigment ink, comparative examples 5-8, respectively.
Table 3: aqueous pigment ink formulations of comparative examples 5 to 8
4. Preparation of aqueous pigment ink
Comparative examples 9 to 12: a Black (BK) normal aqueous pigment ink, a blue (C) normal aqueous pigment ink, a red (M) normal aqueous pigment ink, and a yellow (Y) normal aqueous pigment ink, each having a ratio of polyether siloxane copolymer to silicone gemini surfactant of greater than 5:1, were prepared according to the weight percent compositions shown in Table 4 below, and were comparative examples 9 to 12, respectively.
Table 4: aqueous pigment ink configurations of comparative examples 9 to 12
5. Performance testing
The pigment inks prepared in tables 1,2, 3 and 4 were subjected to the tests of image-text effect, standby performance and printing smoothness (80% single-color blocks were printed, 6 cartridges were printed for each color ink), and the corresponding test results were as shown in table 5 below:
table 5: results of Performance test of examples 1 to 4 and comparative examples 1 to 12
As can be seen from the performance test results of examples 1 to 4 and comparative examples 1 to 4, the aqueous pigment ink in examples 1 to 4 is added with the surface active additive comprising the polyether siloxane copolymer and the organosilicon gemini structure in the mass ratio of (3 to 5): 1, so that the surface tension and viscosity of the aqueous pigment ink are adjusted, the smoothness of the aqueous pigment ink is better, the aqueous pigment ink can adapt to the continuous high-speed printing process, and the aqueous pigment ink has the advantages of sharp and clear characters and patterns when printed on paper.
As can be seen from the performance test results of examples 1 to 4 and comparative examples 5 to 12, when the ratio of the polyether siloxane copolymer to the silicone gemini surfactant in the aqueous pigment ink is (3 to 5): 1, the smoothness of the aqueous pigment ink is better, and the clogging of the inkjet head can be reduced. If the ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant in the aqueous pigment ink is less than 3:1, namely the ratio of the polyether siloxane copolymer is smaller, the surface tension of the aqueous pigment ink is too small, the problem of ink dripping easily occurs at the ink-jet head, and after long-time standby, the water pigment ink can be blocked by layering, flooding, condensation or precipitation, and the like, so that the ink-jet head has serious ink shortage when printing is restarted. If the ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant in the aqueous pigment ink is more than 5:1, namely the ratio of the polyether siloxane copolymer is larger, the surface tension of the aqueous pigment ink is overlarge, and the ink outlet of the ink-jet head is difficult.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present application, and are not limiting. Although the application has been described in detail with reference to the foregoing embodiments, it will be appreciated by those skilled in the art that variations may be made to the embodiments described, or equivalents may be substituted for elements thereof in part or in whole. Such modifications and substitutions do not depart from the spirit of the application.
Claims (9)
1. An aqueous pigment ink, characterized in that the aqueous pigment ink comprises the following components in percentage by weight: 3-10% of pigment toner, 15-35% of solvent, 0.5-2% of surface active additive and the balance of water; wherein the surface active additive consists of a polyether siloxane copolymer and an organosilicon gemini structure surfactant, and the mass ratio of the polyether siloxane copolymer to the organosilicon gemini structure surfactant is (3-5): 1;
the viscosity of the aqueous pigment ink is 2.0 mPas-4.0 mPas, and the surface tension of the aqueous pigment ink is 20 mN/m-40 mN/m.
2. The aqueous pigment ink according to claim 1, wherein the polyether siloxane copolymer comprises at least one of the dihomo-Wet series 270, the dihomo-Wet series 500, the dihomo-Wet series KL 245.
3. The aqueous pigment ink of claim 1, wherein the silicone gemini surfactant comprises at least one of the dihomo Twin-structure 4000 series, the dihomo Twin-structure 4100 series, and the dihomo Twin-structure 4200 series.
4. The aqueous pigment ink of claim 1, wherein the solvent comprises at least one of a polyol and a lower alkyl ether of a polyol.
5. The aqueous pigment ink according to claim 4, wherein the polyhydric alcohol comprises at least one of glycerol, ethylene glycol, propylene glycol, 1, 2-hexanediol, diethylene glycol, triethylene glycol, 1, 3-butanediol, 2, 3-butanediol, 1, 4-butanediol, 2-pyrrolidone, N-methyl-2-pyrrolidone, and hydroxyethyl pyrrolidone.
6. The aqueous pigment ink according to claim 4, wherein the lower alkyl ether of the polyol comprises at least one of glycerol ether, triethylene glycol monobutyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether.
7. The aqueous pigment ink according to claim 1, wherein the pigment toner comprises at least one of a black organic pigment, a red organic pigment, a magenta organic pigment, a yellow organic pigment, and a blue organic pigment.
8. The aqueous pigment ink according to any one of claims 1 to 7, further comprising a resin, wherein the mass ratio of the resin in the aqueous pigment ink is 1 to 5%.
9. The aqueous pigment ink according to any one of claims 1 to 7, further comprising a preservative, wherein the preservative is present in the aqueous pigment ink in an amount of 0.1 to 0.5% by mass.
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| CN114790349A (en) * | 2022-04-21 | 2022-07-26 | 珠海纳思达企业管理有限公司 | Water-based pigment ink |
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| CN114790349A (en) * | 2022-04-21 | 2022-07-26 | 珠海纳思达企业管理有限公司 | Water-based pigment ink |
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