CN101125978A - Digital printing ink composition and application thereof - Google Patents
Digital printing ink composition and application thereof Download PDFInfo
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- CN101125978A CN101125978A CN 200710030540 CN200710030540A CN101125978A CN 101125978 A CN101125978 A CN 101125978A CN 200710030540 CN200710030540 CN 200710030540 CN 200710030540 A CN200710030540 A CN 200710030540A CN 101125978 A CN101125978 A CN 101125978A
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Abstract
The invention discloses a digital painting ink combination containing color dispersion liquid, wherein, at least 70wt percent of mixed organic solvent is contained. The mixed organic solvent contains glycol butyl ether acetate ester and a solvent pertaining to lactone line or contains glycol butyl ether acetate ester and a solvent pertaining to pyrrolidone line. The combination has smooth painting, thereby being applicable to printing in polyvinyl chloride substrate, and has excellent printing quality, printing stability, printing ink dryness and storage stability.
Description
Technical field
The present invention relates to a kind of digital printing ink composition, the invention still further relates to the application of this digital printing ink composition on the polyvinyl chloride base material.
Background technology
In the numerial code spray drawing field, the air brushing machine can be divided into heat foamable formula and minute-pressure electric crystal formula (drop-on-demand mode) by the shower nozzle principle of work.
In general, be used for the ink of numerial code spray drawing, mainly contain with water and be the dye-type aqueous ink of main solvent and be the pigment style oiliness China ink of main solvent with the organic solvent.The dye-type aqueous ink is mainly used in heat foamable formula shower nozzle, exist the firm and solid poor problem of water dungeon of light, cause aqueous ink very long time of drying because the rate of volatilization of water is low in addition, and the base material that is applicable to aqueous ink has certain limitation, must be a class that can planar water or the class that hydrophilic coating is arranged, also need cover the water resisting property film during the outdoor placement of such print image on the surface.The oiliness China ink that with pigment is tinting material is mainly used in minute-pressure electric crystal formula shower nozzle, because the easy volatile of organic solvent and perviousness, selectable base material is extensive, and rate of drying is fast.Comparing pigment style oiliness China ink with the dye-type aqueous ink has many outstanding performances, as: excellent performances such as light is firm, water dungeon is solid, oxidation-resistance.And the outdoor placement of print image does not need to increase coating processes.What the present invention relates to is that back one class printing ink is pigment style oiliness China ink.
Yet in common pigment style oiliness China ink, its organic solvent generally uses toluene, dimethylbenzene, methylethylketone, vinyl acetic monomer etc.These solvent boiling points are low dry rapidly, and make that pigment and resin are separated out on the spray orifice surface easily in the oiliness China ink, cause shower nozzle to stop up or tiltedly spray.And these solvents cause dissolved corrosion to air brushing machine parts such as pipeline, assistant print cartridges, shower nozzle glue easily because solvability is too strong.And then cause use problems such as press quality on base material is inferior, service life of a machine shortening.
Summary of the invention
The objective of the invention is to provide a kind of printing ink of printing on the polyvinyl chloride base material of being suitable for, it has good press quality, printing stability, ink setting and stability in storage.
The technical solution adopted for the present invention to solve the technical problems is:
Digital printing ink composition of the present invention includes following components in weight percentage: mixed organic solvents 70-95wt%, tinting material 0.5-10wt%, dispersant resin 0.5-10wt%, resin glue 1-10wt%; Wherein, mixed organic solvents includes ethylene glycol monomethyl ether acetate and a kind of lactone series solvent, or include ethylene glycol monomethyl ether acetate and a kind of pyrrolidone series solvent, and lactone series solvent or the content of pyrrolidone series solvent in this ink composite are 1-15wt%.
Ethylene glycol monomethyl ether acetate has good dissolving power to dispersant resin and resin glue, can make stable being scattered in wherein of dispersible pigment dispersion.And its rate of volatilization is moderate, helps preserving moisture of shower nozzle, avoids resin and pigment in the printing ink to separate out on the spray orifice surface because of the excessive volatilization of solvent, causes shower nozzle to stop up or tiltedly spray.Thereby use as the main solvent in the printing ink.
Lactone series solvent and pyrrolidone series solvent have good perviousness to the polyvinyl chloride base material, and surface tension is higher, can be used to adjust the surface tension of ink composite.Having of they is beneficial to the printing ink trace of undertaking the printing of on the polyvinyl chloride base material to base material internal penetration and fixing, prevents that trace from outwards excessively sprawling and influence the quality of output image, ensures that trace is clear.
The lactone series solvent is a kind of ester bond type compound of ring texture, the gamma lactone of 5 Yuans ring structures is arranged, the ε-lactone of the delta-lactone of 6 Yuans ring structures, 7 Yuans rings etc.For example: gamma-butyrolactone, γ-Wu Neizhi, γ-Ji Neizhi, γ-Geng Neizhi, γ-Xin Neizhi, γ-Ren Neizhi, γ-certain herbaceous plants with big flowers lactone; δ-Wu Neizhi, δ-caprolactone, δ-oenantholacton, δ-Xin Neizhi, δ-nonalactone, δ-certain herbaceous plants with big flowers lactone, 6-caprolactone.
Lactone series solvent in the present invention is preferably the gamma lactone of 5 Yuans ring structures, and more preferably gamma-butyrolactone, γ-Wu Neizhi, γ-Ji Neizhi.
The pyrrolidone series solvent has alpha-pyrrolidone, N-Methyl pyrrolidone, N-ethyl pyrrolidone, N-octylpyrrolidone.N-Methyl pyrrolidone, N-ethyl pyrrolidone are preferably arranged.
The content of mixed solvent in printing ink is 70wt% at least.Wherein the lactone series solvent is advisable with 1-15wt% in printing ink, is excellent with 3-15wt%; The pyrrolidone series solvent is advisable with 1-15wt% in printing ink, is excellent with 3-15wt%.
Tinting material among the present invention can be single pigment dyestuff, also can be to mix pigment dyestuff, and the median size of pigment is excellent with the 50-500 nanometer.Selectable pigment dyestuff has azo pigment, phthalocyanine pigment, quinacridone pigment, perylene pigments, piceneketone series pigments, thioindigo class pigment, anthraquinone pigment, isoindolinone pigment and isoindoline series pigments, pyrrolopyrrole diketone series pigments, quinophthalone class pigment, heterocycle pigment etc.The content 0.5-10wt% of pigment, more preferably 0.5-8wt% in ink composite.
Dispersant resin among the present invention, available Disperbyk-161,166,167,180,182, the BYK-9076 that BYK-Chemie company is arranged; The POLYMER400 of EFKA Chemicals, 401,402,450,451,453; Hinoacto KF1-M, T-7000, T-8000, the T-8000EL of actor playing a martial role in Chinese operas Fine Chemical company; The Solsperse20000 of Avecia company, 24000,32000,32500,33500; The AJISPERPB821 of aginomoto company, PB711; Macromolecular compounds such as FLOWLEN DOPA-17,22, the G-700 of chemical company of common prosperity society, they can be single things, also can be mixtures.The content of above dispersant resin in printing ink is 0.5-10wt%, more preferably should be 1-6wt%.
Using resin glue among the present invention, is in order to make the printing ink trace of undertaking the printing of on the polyvinyl chloride base material anchor at substrate surface, and plays a part to adjust viscosity in printing ink, guarantees that printing ink has good jet performance.Resin glue also must be the solvent system that dissolves among the present invention.Operable resin glue has: single resin or mixtures such as vinyl chloride-vinyl acetate copolymer resin, acrylic resin, celluosic resin, vibrin, Resins, epoxy, modified rosin resin.
As resin glue, what have better performance is vinyl chloride-vinyl acetate copolymer resin and acrylic resin.And the molecular weight of vinyl chloride-vinyl acetate copolymer resin is 10,000-120,000, and second-order transition temperature (Tg) is more than 40 ℃, and more preferably molecular weight is 10,000-100,000, and second-order transition temperature (Tg) is more than 60 ℃; The acrylic resin molecular weight is 10,000-120,000, and second-order transition temperature (Tg) is more than 40 ℃, and more preferably molecular weight is 10,000-100,000, and second-order transition temperature (Tg) is more than 60 ℃.In order to obtain better base material sticking power, vinyl chloride-vinyl acetate copolymer resin, acrylic resin can and be used with celluosic resin or vibrin.The content in printing ink of above resin glue more preferably should be 2-8wt% at 1-10wt%.
The preparation of digital printing ink composition of the present invention.In the printing ink main solvent, add pigment and dispersion agent, carry out disperseing with sand mill after the sufficient mechanical stirring, to make stable dispersible pigment dispersion.Resulting dispersion liquid adds remaining solvent and resin in the ink composite under the mechanical stirring state, stir to get final product in 30-60 minute.With the filer element type strainer printing ink is filtered filtering accuracy 0.1-1 micron, more preferably 0.1-0.5 micron at last.The printing ink that is obtained is at 25 ℃ of following viscosity 5-15mPas, 9-12mPas more preferably, and the surface tension of printing ink should be between 20-40mN/m.The too high ink drop of surface tension causes sucking bubble in the spray orifice its surface compressed easily, produces to spray blank, disconnected China ink, and can stop the printing ink trace to carry out necessary sprawling at substrate surface, makes over-colored inharmonious; Surface tension crosses that low then ink drop is excessive from spray orifice easily, is diffused on the shower nozzle panel, directly causes jet performance to descend, and produces tiltedly problems such as spray, satellite point, and serious also can taking place is disconnected black, makes image become unintelligible, and color is mixed and disorderly.Above surface tension problem all can cause the output image quality to descend, and influences the air brushing effect.Therefore more preferred surface tension should be 25-36mN/m.
Digital printing ink composition of the present invention comprises Huang (Yellow), product (Magenta), blue or green (Cyan), black (Black) and shallow green grass or young crops (Light Cyan), six kinds of colors of shallow product (Light Magenta).Be applicable to all kinds of minute-pressure electric crystal formula shower nozzles.
The invention has the beneficial effects as follows: digital printing ink composition ink-jet smoothness of the present invention, strong adhesion, outdoor weatherability excellence, on the polyvinyl chloride base material, print, good press quality, printing stability, ink setting and stability in storage are arranged; Because glycol monobutyl ether acetate ester has good dissolving power to dispersant resin and resin glue, can make stable being scattered in wherein of dispersible pigment dispersion, and its rate of volatilization is moderate, help preserving moisture of shower nozzle, avoid resin and pigment in the printing ink to separate out on the spray orifice surface, cause shower nozzle to stop up or tiltedly spray because of the excessive volatilization of solvent; Lactone series solvent and pyrrolidone series solvent have good perviousness to the polyvinyl chloride base material, and surface tension is higher, can be used to adjust the surface tension of ink composite.Having of they is beneficial to the printing ink trace of undertaking the printing of on the polyvinyl chloride base material to base material internal penetration and fixing, prevents that trace from outwards excessively sprawling and influence the quality of output image, ensures that trace is clear.
The present invention is further described below in conjunction with embodiment.
Embodiment
Now the present invention is described, but these do not limit scope of the present invention with object lesson.
The viscosimetric analysis of following example is to use BROOKFIELD corporate system " DV-I+Viscometer " viscometer.Pigment particle size adopts " Mastersizer2000 " size distribution instrument of MALVERN company to measure.
Earlier resin glue (vinylchlorid acetate ethylene copolymer resin UCARVAGH) 15wt% is added in the 85wt% ethylene glycol monomethyl ether acetate main solvent before implementing, and high-speed stirring 60 minutes, resin liquid preformulation A obtained.
The Yellow ink preparation
Bloom (azo pigment C.I.Pigment Yellow 180) 20wt%, dispersion agent (BYKDisperbyk-161) 20wt% are added in the 60wt% ethylene glycol monomethyl ether acetate, and high-speed stirring 30 minutes, carry out pre-dispersed.And then disperse with the sand mill of having filled zirconium oxide bead (0.4-0.6mm), obtaining dispersible pigment dispersion B, pigment particle size is less than 0.3 micron among this dispersion liquid B.
Embodiment
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion B | 15％ | 15％ | 15％ | 15％ | 15％ |
| Resin liquid preformulation A | 24％ | 23.5％ | 23％ | 25.5％ | 24％ |
| Ethylene glycol monomethyl ether acetate | 51％ | 51.5％ | 52％ | 49.5％ | 51％ |
| Gamma-butyrolactone | 10％ | - | - | - | - |
| γ-Wu Neizhi | - | 10％ | - | - | - |
| γ-Ji Neizhi | - | - | 10％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 10％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 10％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.7 mPa·s | 10.8 mPa·s | 10.7 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Comparative example
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion B | 15％ | 15％ | 15％ | 15％ | 15％ |
| Resin liquid preformulation A | 26％ | 25％ | 24.5％ | 29％ | 26.5％ |
| Ethylene glycol monomethyl ether acetate | 39％ | 40％ | 40.5％ | 36％ | 38.5％ |
| Gamma-butyrolactone | 20％ | - | - | - | - |
| γ-Wu Neizhi | - | 20％ | - | - | - |
| γ-Ji Neizhi | - | - | 20％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 20％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 20％ |
| Ink viscosity (25 ℃) | 10.7 mPa·s | 10.7 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
The magenta ink preparation
Rouge and powder (azo pigment C.I.Pigment Red 146) 20wt%, dispersion agent (BYK-9076) 12wt% are added in the 68wt% ethylene glycol monomethyl ether acetate, and high-speed stirring 30 minutes, carry out pre-dispersed.And then disperse with the sand mill of having filled zirconium oxide bead (0.4-0.6mm), obtaining dispersible pigment dispersion C, pigment particle size is less than 0.3 micron among this dispersion liquid C.
Embodiment
| Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion C | 18％ | 18％ | 18％ | 18％ | 18％ |
| Resin liquid preformulation A | 21％ | 20.5％ | 20％ | 23％ | 22％ |
| Ethylene glycol monomethyl ether acetate | 51％ | 51.5％ | 52％ | 49％ | 50％ |
| Gamma-butyrolactone | 10％ | - | - | - | - |
| γ-Wu Neizhi | - | 10％ | - | - | - |
| γ-Ji Neizhi | - | - | 10％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 10％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 10％ |
| Ink viscosity (25 ℃) | 10.9 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.9 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Comparative example
| Comparative example 6 | Comparative example 7 | Comparative example 8 | Comparative example 9 | Comparative example 10 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion C | 18％ | 18％ | 18％ | 18％ | 18％ |
| Resin liquid preformulation A | 23.5％ | 22.5％ | 22％ | 27％ | 24.5％ |
| Ethylene glycol monomethyl ether acetate | 38.5％ | 39.5％ | 40％ | 35％ | 37.5％ |
| Gamma-butyrolactone | 20％ | - | - | - | - |
| γ-Wu Neizhi | - | 20％ | - | - | - |
| γ-Ji Neizhi | - | - | 20％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 20％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 20％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.7 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
The cyan ink preparation
Blue powder (phthalocyanine pigment C.I.Pigment Blue 15:4) 20wt%, dispersion agent (BYKDisperbyk-161) 20wt% are added in the 60wt% ethylene glycol monomethyl ether acetate, and high-speed stirring 30 minutes, carry out pre-dispersed.And then disperse with the sand mill of having filled zirconium oxide bead (0.4-0.6mm), obtaining dispersible pigment dispersion D, pigment particle size is less than 0.3 micron among this dispersion liquid D.
Embodiment
| Embodiment 11 | Embodiment 12 | Embodiment 13 | Embodiment 14 | Embodiment 15 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion D | 15％ | 15％ | 15％ | 15％ | 15％ |
| Resin liquid preformulation A | 24％ | 23.5％ | 23％ | 25％ | 24％ |
| Ethylene glycol monomethyl ether acetate | 51％ | 51.5％ | 52％ | 50％ | 51％ |
| Gamma-butyrolactone | 10％ | - | - | - | - |
| γ-Wu Neizhi | - | 10％ | - | - | - |
| γ-Ji Neizhi | - | - | 10％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 10％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 10％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.7 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Comparative example
| Comparative example 11 | Comparative example 12 | Comparative example 13 | Comparative example 14 | Comparative example 15 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion D | 15％ | 15％ | 15％ | 15％ | 15％ |
| Resin liquid preformulation A | 26％ | 25％ | 24.5％ | 29％ | 25.5％ |
| Ethylene glycol monomethyl ether acetate | 39％ | 40％ | 40.5％ | 36％ | 39.5％ |
| Gamma-butyrolactone | 20％ | - | - | - | - |
| γ-Wu Neizhi | - | 20％ | - | - | - |
| γ-Ji Neizhi | - | - | 20％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 20％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 20％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
The black ink preparation
To deceive powder (carbon dust C.I.Pigment Black 7) 20wt%, dispersion agent (BYK-9076) 16wt% and add in the 64wt% ethylene glycol monomethyl ether acetate, and high-speed stirring 30 minutes, carry out pre-dispersed.And then disperse with the sand mill of having filled zirconium oxide bead (0.4-0.6mm), obtaining dispersible pigment dispersion E, pigment particle size is less than 0.3 micron among this dispersion liquid E.
Embodiment
| Embodiment 16 | Embodiment 17 | Embodiment 18 | Embodiment 19 | Embodiment 20 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion E | 15％ | 15％ | 15％ | 15％ | 15％ |
| Resin liquid preformulation A | 21％ | 20.5％ | 20％ | 23％ | 21.5％ |
| Ethylene glycol monomethyl ether acetate | 54％ | 54.5％ | 55％ | 52％ | 53.5％ |
| Gamma-butyrolactone | 10％ | - | - | - | - |
| γ-Wu Neizhi | - | 10％ | - | - | - |
| γ-Ji Neizhi | - | - | 10％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 10％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 10％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Comparative example
| Comparative example 16 | Comparative example 17 | Comparative example 18 | Comparative example 19 | Comparative example 20 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion E | 15％ | 15％ | 15％ | 15％ | 15％ |
| Resin liquid preformulation A | 23％ | 22％ | 21.5％ | 26％ | 23.5％ |
| Ethylene glycol monomethyl ether acetate | 42％ | 43％ | 43.5％ | 39％ | 41.5％ |
| Gamma-butyrolactone | 20％ | - | - | - | - |
| γ-Wu Neizhi | - | 20％ | - | - | - |
| γ-Ji Neizhi | - | - | 20％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 20％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 20％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.9 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
The light cyan ink formulation
Embodiment
| Embodiment 21 | Embodiment 22 | Embodiment 23 | Embodiment 24 | Embodiment 25 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion D | 5％ | 5％ | 5％ | 5％ | 5％ |
| Resin liquid preformulation A | 34％ | 33.5％ | 33％ | 35％ | 33.5％ |
| Ethylene glycol monomethyl ether acetate | 53％ | 53.5％ | 54％ | 52％ | 53.5％ |
| Gamma-butyrolactone | 8％ | - | - | - | - |
| γ-Wu Neizhi | - | 8％ | - | - | - |
| γ-Ji Neizhi | - | - | 8％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 8％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 8％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.7 mPa·s | 10.7 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Comparative example
| Comparative example 21 | Comparative example 22 | Comparative example 23 | Comparative example 24 | Comparative example 25 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion D | 5％ | 5％ | 5％ | 5％ | 5％ |
| Resin liquid preformulation A | 36％ | 35％ | 34％ | 40％ | 37％ |
| Ethylene glycol monomethyl ether acetate | 39％ | 40％ | 41％ | 35％ | 38％ |
| Gamma-butyrolactone | 20％ | - | - | - | - |
| γ-Wu Neizhi | - | 20％ | - | - | - |
| γ-Ji Neizhi | - | - | 20％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 20％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 20％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Shallow product color ink preparation
Embodiment
| Embodiment 26 | Embodiment 27 | Embodiment 28 | Embodiment 29 | Embodiment 30 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion C | 6％ | 6％ | 6％ | 6％ | 6％ |
| Resin liquid preformulation A | 33％ | 32.5％ | 32％ | 35％ | 33.5％ |
| Ethylene glycol monomethyl ether acetate | 53％ | 53.5％ | 54％ | 51％ | 52.5％ |
| Gamma-butyrolactone | 8％ | - | - | - | - |
| γ-Wu Neizhi | - | 8％ | - | - | - |
| γ-Ji Neizhi | - | - | 8％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 8％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 8％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.8 mPa·s | 10.8 mPa·s | 10.7 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
Comparative example
| Comparative example 26 | Comparative example 27 | Comparative example 28 | Comparative example 29 | Comparative example 30 | |
| Component | wt％ | wt％ | wt％ | wt％ | wt％ |
| Dispersible pigment dispersion C | 6％ | 6％ | 6％ | 6％ | 6％ |
| Resin liquid preformulation A | 35％ | 34％ | 33％ | 39％ | 36％ |
| Ethylene glycol monomethyl ether acetate | 39％ | 40％ | 41％ | 35％ | 38％ |
| Gamma-butyrolactone | 20％ | - | - | - | - |
| γ-Wu Neizhi | - | 20％ | - | - | - |
| γ-Ji Neizhi | - | - | 20％ | - | - |
| N-Methyl pyrrolidone | - | - | - | 20％ | - |
| The N-ethyl pyrrolidone | - | - | - | - | 20％ |
| Ink viscosity (25 ℃) | 10.8 mPa·s | 10.9 mPa·s | 10.9 mPa·s | 10.7 mPa·s | 10.8 mPa·s |
Prepare burden according to above-mentioned tabulation, high-speed stirring 30 minutes makes the sample China ink, and records ink viscosity.
After the ink composite filtration with embodiment 1～embodiment 30,30 preparations of comparative example 1～comparative example, (envrionment temperature: 25 ℃, humidity: 70%), the polyvinyl chloride base material is as stock in test on YSL D-2500S air brushing machine.
Test result:
(1), press quality: embodiment 1～embodiment 30 air brushing sizes of ink dots are even, and satellite point is few, color excessive nature true to nature, the printing ink trace is clear, picture clear-cut margin, printing quality height.30 air brushing of comparative example 1～comparative example have satellite point, and the printing ink trace is fuzzy slightly, picture edge little rough.
(2), printing stability: tested in continuous 24 hours, embodiment 1～embodiment 30 disconnected China ink occurs, tiltedly sprays, and the number of times of the phenomenon of dispersing is not more than 3 times.Comparative example 9～comparative example 10, comparative example 19～comparative example 30 number of times of disconnected China ink, the phenomenon of tiltedly spraying, disperse occurs more than 10 times.All the other comparative examples the number of times of disconnected China ink, the phenomenon of tiltedly spraying, disperse occurs at 5-10 time.
(3), ink setting: the time of drying of comparative example 1～comparative example 20, the time of drying of comparative example 21～comparative example 30 was more than 10 minutes between 5-10 minute in 5 minutes 30 time of drying for embodiment 1～embodiment.
(4), stability in storage: get the 50g ink composite, be enclosed within the vial, in 60 ℃ of thermostatteds, after 4 weeks of placement, measure the viscosity variation that ink composite is placed front and back.Viscosity before and after embodiment 1～embodiment 30, comparative example 1～comparative example 30 are placed changes all less than 5%.
Conclusion: according to above simultaneous test, embodiment 1～embodiment 30 is the ink composites with good press quality, printing stability, ink setting and stability in storage.Though and comparative example 1～comparative example 30 has good stability in storage equally, press quality, printing stability, ink setting are all not as good as embodiment 1～embodiment 30.
Therefore, this digital printing ink composition is to be applicable to the high-quality printing ink that prints on the polyvinyl chloride base material, is the outstanding printing ink of a every performance.
Claims (7)
1. digital printing ink composition is characterized in that including in the composition following components in weight percentage: mixed organic solvents 70-95wt%, tinting material 0.5-10wt%, dispersant resin 0.5-10wt%, resin glue 1-10wt%; Wherein, mixed organic solvents includes ethylene glycol monomethyl ether acetate and a kind of lactone series solvent, or include ethylene glycol monomethyl ether acetate and a kind of pyrrolidone series solvent, and lactone series solvent or the content of pyrrolidone series solvent in this ink composite are 1-15wt%.
2. digital printing ink composition according to claim 1 is characterized in that described lactone series solvent is the gamma lactone series solvent; The pyrrolidone series solvent is a N-alkyl pyrrolidone series solvent.
3. digital printing ink composition according to claim 2 is characterized in that the gamma lactone series solvent is a kind of in gamma-butyrolactone, γ-Wu Neizhi, the γ-Ji Neizhi; N-alkyl pyrrolidone series solvent is a kind of in N-Methyl pyrrolidone, the N-ethyl pyrrolidone.
4. digital printing ink composition according to claim 1 is characterized in that tinting material is a pigment.
5. digital printing ink composition according to claim 1 is characterized in that resin glue is at least a in vinyl chloride-vinyl acetate copolymer resin, acrylic resin, celluosic resin, the vibrin.
6. digital printing ink composition according to claim 1, the molecular weight that it is characterized in that binding agent vinyl chloride-vinyl acetate copolymer resin is 10,000-120,000, and second-order transition temperature (Tg) is more than 40 ℃; The acrylic resin molecular weight is 10,000-120,000, and second-order transition temperature (Tg) is more than 40 ℃.
7. the application of the arbitrary described digital printing ink composition of claim 1 to 6 on the polyvinyl chloride base material.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580661A (en) * | 2009-06-05 | 2009-11-18 | 刘恒全 | Touch screen protective ink |
| CN102139562A (en) * | 2008-03-07 | 2011-08-03 | 精工爱普生株式会社 | Liquid ejecting method, liquid ejecting head, and liquid ejecting apparatus |
| CN102139563A (en) * | 2008-03-07 | 2011-08-03 | 精工爱普生株式会社 | Liquid ejecting method, liquid ejecting head, and liquid ejecting apparatus |
| CN102482524A (en) * | 2009-07-14 | 2012-05-30 | 巴斯夫公司 | Low voc solvent-borne printing inks |
| GB2575800A (en) * | 2018-07-23 | 2020-01-29 | Sensient Colors Uk Ltd | Method of preparing an inkjet ink |
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2007
- 2007-09-22 CN CN 200710030540 patent/CN101125978A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139562A (en) * | 2008-03-07 | 2011-08-03 | 精工爱普生株式会社 | Liquid ejecting method, liquid ejecting head, and liquid ejecting apparatus |
| CN102139563A (en) * | 2008-03-07 | 2011-08-03 | 精工爱普生株式会社 | Liquid ejecting method, liquid ejecting head, and liquid ejecting apparatus |
| CN101580661A (en) * | 2009-06-05 | 2009-11-18 | 刘恒全 | Touch screen protective ink |
| CN102482524A (en) * | 2009-07-14 | 2012-05-30 | 巴斯夫公司 | Low voc solvent-borne printing inks |
| CN102482524B (en) * | 2009-07-14 | 2014-07-30 | 巴斯夫公司 | Low voc solvent-borne printing inks |
| US8957130B2 (en) | 2009-07-14 | 2015-02-17 | Basf Se | Low VOC solvent-borne printing inks |
| GB2575800A (en) * | 2018-07-23 | 2020-01-29 | Sensient Colors Uk Ltd | Method of preparing an inkjet ink |
| WO2020021236A1 (en) * | 2018-07-23 | 2020-01-30 | Sensient Colors UK Limited | Method of preparing an inkjet ink |
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