CN1613925A - Ultraviolet light curing printing ink for digital printing and dyeing preparation thereof - Google Patents
Ultraviolet light curing printing ink for digital printing and dyeing preparation thereof Download PDFInfo
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- CN1613925A CN1613925A CN 200410066569 CN200410066569A CN1613925A CN 1613925 A CN1613925 A CN 1613925A CN 200410066569 CN200410066569 CN 200410066569 CN 200410066569 A CN200410066569 A CN 200410066569A CN 1613925 A CN1613925 A CN 1613925A
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Abstract
UV solidified printing ink for digital code printing and dyeing is composed of polyurethane acrylate, prepolymer, activity monomer, dyestuff, light initiator, dispersant agent and other addition agents. The prepolymer has the character of low viscosity and good flexibility. The ink doesn't contain organic solvent and has wide material adaptation, storage stability and softness.
Description
Technical field
The present invention relates to a kind of UV curable ink and preparation method thereof, particularly a kind of digital printing and dyeing UV curable ink and preparation method thereof.
Background technology
Digital printing technology is a kind of brand-new textile printing technology, and it is by the computer control print system ink special to be injected directly on the fabrics such as cotton, fiber crops, silk, chemical fibre, thereby prints out various patterns and decorative pattern.Compare with traditional processing technology, digital dyeing and printing process has five big advantages: the one, and the production efficiency height, the 2nd, good product quality, the 3rd, can produce in batches arbitrarily, the 4th, save energy, the 5th, there is not environmental pollution substantially.Digital printing technology was used more and more widely in recent years in the world, this is computer technology and dyeing bonded product, not only can reach the effect of traditional stamp, and can accomplish the special-effect that traditional printing machine can not be compared, changed traditional stamp theory fully, the New Times of having opened up stamp.
The ink-jet technology that digital printing and dyeing are adopted mainly contains two kinds, promptly the continous inkjet technology (ContinucusInk Jet, CIJ) and the drop on demand ink jet technology (Drop-On-Demand, DOD).The drop on demand ink jet technology can be divided into two kinds: piezoquartz (Piezoelectric) technology and heat foamable technology.The piezoquartz technology is to send signal by computer by the flexible of piezoquartz printing ink to be applied a small pressure, and printing ink is sprayed from nozzle.The heat foamable technology be by Computer signal control with a resistor heats to certain temperature, make ink produce vaporific bubble, vaporific bubble cooling or vanish and form ink droplet from nozzle ejection formation pattern.The difference of ink-jet technology, the logarithmic code printing and dyeing are also different with the requirement of printing ink, and for example the ink viscosity of heat foamable formula shower nozzle use is at 3-5 centipoise (25 ℃), and the ink viscosity that the piezo crystal shower nozzle uses is then at 5-20 centipoise (25 ℃).
Present digital cloth printing ink can be divided into dye-type and pigment style according to the difference of tinting material; Can be divided into water-based, solvent borne and light-cured type according to the main component in the system.Ink-jet printedly be divided into two classes with tinting material, promptly water miscible dyestuff and water-insoluble organic or inorganic pigment.The major advantage of dye coloring agent is that chromatogram is complete, and is bright in luster, gets the colour strength height; Have good water-solublely, it is convenient to make printing ink, and cost is low, is easy to make the printing ink of high density, and the good stability of printing ink is difficult for stopping up shower nozzle, and print quality is good, is applicable to ink-jet printed fast; There is not the ecological, environmental protective problem.Operable dyestuff comprises reactive dyestuffs, matching stain and dispersed dye etc., is applicable to the stamp of cotton, silk/polyamide fibre, polyester piece good respectively.Its process for preparation generally is that water-soluble dye, wetting Agent for Printing Inks, siccative, viscosity modifier, pH regulator agent, mould inhibitor and pure water are made into water type ink together.The commercialization of ink-jet decorating machine use is at present printed black great majority and is belonged to this class.But color fastness to water and light fastness is poor by the stamp product ubiquity that the printing ink of dyestuff preparation is printed, easily shortcoming such as contamination.Particularly at present the value added by the textiles of ink-jet printed printing is very high, to the requirement of fastness also obviously than general fabrics height.Must select different dyestuffs for different fabrics in addition, can't find a kind of dye type printing ink to print and dye blend ed fabric (such as polyester cotton blending).Address these problems, it is an important developing direction that utilization pigment carries out ink-jet printed.The great advantage of pigment colorant is light fastness and the color fastness to water that it is good.But the adding that is accompanied by pigment colorant has also produced new problem, because pigment is water insoluble and solvent, thereby with pigment preparation printing ink the time, there is the dispersive problem, be that water-based or solvent borne printing ink all need pigment grind is become very thin particulate, and be uniformly dispersed and make Yin Mo.Granules of pigments is in case occur to assemble the obstruction that will cause nozzle, can accomplish ink system stable be one of the key of such printing ink.
Difference according to main component in the printing ink is divided into printing ink water-based and solvent borne two big classes again, comprise that mainly water, tinting material (dyestuff or pigment) and various additive (comprise dispersion agent, flow agent, defoamer in the typical water color ink, softening agent, UV light absorber or the like).Have a defective for the industrial production water color ink, that is exactly dry problem, and the drying of water needs the oversize time, even the existence of having heaters has also limited the raising of production rate greatly.Different therewith, solvent borne printing ink is because of the quick volatility of organic solvent, and drying no longer is the factor of limit production speed, but all has the problem of environmental protection such as toxicity, inflammableness because of most of organic solvents, should not adopt solvent borne printing ink in the number printing and dyeing.
Be applied to the UV curable ink industrialization in the silk screen printing, on many early stage patents, introduction arranged all, as JP-A-63102836, U.S.Pat.4303924, EP-A-0540203 and WO97/31071 etc.But the characteristics for the UV curable ink that is used on digital the printing must be printed according to number comprise low viscosity, best surface tension, and low volatility, stability in storage, printing ink designs tack of ground or the like.The people such as Nigel of Coates Brothers company have proposed a kind of proportioning that is used in the digital UV curable ink of printing in U.S.Pat.6586492, less than 25 centipoises, the weight ratio of curable component is at 35-98% under 40-130 ℃ for its viscosity controller.The people such as Mejiritski of Spectra company are described in detail with UV curable ink the number printing that is used on the 3-D model in U.S.Pat.6586494, propose the importance of the low-shrinkage of prepolymer, think that simultaneously the viscosity number of printing ink should be 10-50 centipoise (50-140 ℃) printing ink.But be applied in the UV curable ink in the digital printing and dyeing, patent report is not arranged up to now as yet.
Summary of the invention
The technical issues that need to address of the present invention are to disclose a kind of digital printing and dyeing with UV curable ink and preparation method thereof, to overcome the above-mentioned shortcoming of water-based and solvent borne printing ink.Digital printing and dyeing of the present invention comprise with the component and the weight percentage of UV curable ink:
Polyurethane acrylate prepolymer 5-30%
Reactive monomer 50-85%
Pigment 1-5%
Light trigger 3-8%
Light-initiated synergist 0.1-1%
Tensio-active agent 0.1-1%
Dispersion agent 0.5-3%
Other additive 0.1-2%.
Said polyurethane acrylate prepolymer is to design according to the characteristics that number is printed and dyed.Urethane (PU) has advantages such as snappiness is good, bonding strength is big, but there are shortcomings such as heat resistance is not good, poor water resistance, acrylic resin (PA) has water tolerance, weathering resistance preferably, but exist hardness greatly, shortcoming such as anti-solvent not, urethane acrylate can get up the advantages of the two, overcome shortcoming separately, bring into play synergistic advantage.Owing to have carbamate and carboxylic ester structural units simultaneously in the macromolecular structure of polyurethane acrylate prepolymer, combine the premium properties of urethane and acrylic resin, have higher laser curing velocity, good sticking power, snappiness, wear resistance, lower temperature resistance and snappiness and the elongation of giving prominence to, just in time satisfy the requirement of digital printing and dyeing.
The preparation method of urethane acrylate can adopt " printing-ink, coating, colored paint UV-light and electrocuring prescription " (R. Dorothy Holman chief editor, the publication of Atomic Energy Press, Beijing) disclosed method is prepared in, generally vulcabond (A) and equivalent (methyl) vinylformic acid hydroxyl ester (B) are reacted at low temperatures, generate the affixture (dimer) of the carbamate of isocyanato group containing group, again this affixture is reacted with various saturated or unsaturated polyhydroxylated polymers (C), obtain urethane acrylate; Also can make the reaction of vulcabond and polyhydroxylated polymer earlier, form urethane acrylate with the reaction of vinylformic acid hydroxyl ester again.C component polyhydroxylated polymer is generally the low molecular weight polycaprolactone ester or the polyethers of terminal hydroxy group in the urethane acrylate, as polyoxyethylene glycol (PEG), propylene oxide polyether Glycols (PPG), tetrahydrofuran (THF) polyether Glycols (PTMG), polyoxytrimethylene ether (PPO) and poly-butanediol (PBD), castor-oil plant wet goods.The C component provides the soft chain segment in the PUA molecular structure, and its type is very big to the dynamic mechanical property influence of polyurethane acrylate prepolymer.Softish PBD chain is than the PPG chain micro Brownian motion that more is easy to do, thereby contains the urethane acrylate molecule HMDI/HEA/PBD (HEA is a Hydroxyethyl acrylate) of PBD, and the relevant position peak of its second-order transition temperature Tg is just low than HMDI/HEA/PPG molecule.The C component to photo-crosslinking after network mechanical property influence also clearly, soft chain segment length is big more, the rigidity of the PU network of formation is just more little, thereby breaking tenacity is more little, and elongation at break is big more.If adopt the polyhydroxylated polymer that contains unsaturated link(age) to make the C component, then the two keys in the polyhydroxylated polymer also can participate in photo-crosslinking, and cross-linking density is increased.The available kind of A component vulcabond is also a lot, and fragrant has tolylene diisocyanate (TDI), 4,4 '-diphenylmethanediisocyanate (MDI); Lard type has isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI) etc.The low price of fragrant, weathering resistance is bad; The lard type price is more expensive, but is difficult for yellowing, snappiness and good endurance.Digital printing and dyeing require the fabric behind the stamp to have good feel, flexibility, and the present invention adopts aliphatic diisocyanate.The polyurethane acrylate prepolymer commercial prod that the present invention adopts has: the CN series product of SARTOMER company (comprising CN816, CN817, CN929, CN964, CN945, CN965, CN968, CN981, CN983, CN984, CN985 etc.); The EBECRYL product of UCB Radcure company (comprising 4833,4835,4842,4883,657,770,830,8301,835,8800,8803 etc.), the UA320 of Shanxi Jinling Photocureable Coating Co., ltd..
Viscosity is an extremely important parameter of digital marking ink, have only when printing ink in very suitable range of viscosities could by shower nozzle glibly spray printing on fabric.For UV curable ink, it is very crucial keeping alap viscosity for the number printing and dyeing.The viscosity of printing ink of the present invention is controlled at below 25 centipoises at (room temperature is to about 50 ℃) under the shower nozzle working temperature, and the adjusting of viscosity is mainly finished by molecular weight and its content in printing ink of control polyurethane acrylate prepolymer.Of particular note, the variation of the viscosity with temperature of printing ink is very obvious, is that 30 centipoises viscosity when being warming up to 50 ℃ then may be reduced to 15 centipoises 25 ℃ of following viscosity for example.Compare with the urethane acrylate in the UV curable ink that is used in other field, digital printing and dyeing are little relatively with the molecular weight of urethane acrylate, and the existence of part side chain is arranged.Very helpful to the viscosity adjustment of printing ink like this, its number-average molecular weight is controlled at 1000-2000;
The another one important parameter of digital marking ink is a surface tension, and the higher then printing ink of the surface tension of printing ink is easy to ejection smoothly from nozzle, but occurs dropping down black phenomenon on ground easily, influences the resolving power of print pattern greatly; The surface tension of printing ink is on the low side has then stopped to drop down black phenomenon, but is unfavorable for printing ink ejection smoothly from nozzle, causes disconnected China ink easily or lacks black phenomenon.Therefore it is very important that suitable surface tension value logarithmic code is printed, and the digital printing and dyeing of the present invention are controlled at 25-35 dynes per centimeter under the shower nozzle working temperature with the surface tension of printing ink.Capillary size is main relevant with the monomer in the printing ink component, the interpolation of tensio-active agent can be played the effect of regulating ink surface tension, tensio-active agent is the organic fluorine tensio-active agent, organic fluorine tensio-active agent such as F-172 (the perfluoroalkyl oligopolymer that contains oleophilic group) that the Fluorad series that can select Minnesota Mining and Manufacturing Company to produce is produced as the big Japanese ink company of FC430 (perfluoroalkyl esterification thing) or Japan.
Said reactive monomer (being called active dilution body again) is single functionality monomer, difunctionality monomer and three-functionality-degree or the monomeric mixture of polyfunctionality;
Wherein: the monomeric weight content of single functionality is the 50-70% of monomer total amount, and the monomeric weight content of difunctionality is the 15-40% of monomer total amount, and the monomeric weight content of three-functionality-degree or polyfunctionality is 5～20% of a monomer total amount.
Reactive monomer is an integral part very important in the ink formulations of the present invention, and it not only reduces the viscosity of printing ink, also participates in photochemical total overall reaction.Its effect can reduce: change the viscosity of printing ink, rheological properties such as viscosity 1.; 2. together the time, determining the solidification rate of system with light trigger; 3. improve or improve the character of cured film.Single functionality component content is too low, then causes the viscosity of whole ink system higher; Otherwise single functionality component content is too high, then causes curing speed and to the reduction of the tack of ground.The digital printing and dyeing of the present invention are promptly considered digital requirement of printing with the selection of reactive monomer in the UV curable ink, have considered the requirement of printing and dyeing more, and the reactive monomer of selection all has characteristics such as viscosity is low, shrinking percentage is little.
The molar equivalent of carbon-carbon double bond can characterize the proportioning between single functionality, difunctionality and the polyfunctionality in the ink system.The too low curing speed that then causes of this value is slow, and film forming is too soft; It is too hard to be worth too high then film forming on the contrary, even embrittlement.Proportioning among the present invention between single, double and polyfunctionality monomer is with the molar equivalent 1.1-1.8 of carbon-carbon double bond, and preferably 1.1-1.5 is best.
The reactive monomer of said single functionality is selected from vinylbenzene, vinyl toluene, N-ethene-2-Pyrrolidone, (methyl) acrylate, (methyl) Octyl acrylate, (methyl) Isooctyl acrylate monomer, (methyl) vinylformic acid ester in the different ninth of the ten Heavenly Stems, 2-phenoxyethyl acrylate (methyl) butyl acrylate, (methyl) isobutyl acrylate, (methyl) Hydroxyethyl acrylate, (methyl) vinyl cyanide, (methyl) decyl acrylate, (methyl) dodecylacrylate, (methyl) methyl acrylate, (methyl) Ethyl acrylate, (methyl) Hydroxyethyl acrylate, (methyl) vinylformic acid hydroxyl methyl esters, (methyl) Propylene glycol monoacrylate, (methyl) vinylformic acid hydroxyl isopropyl ester, (methyl) vinylformic acid hydroxy butyl ester, (methyl) vinylformic acid hydroxyl isobutyl ester, isobornyl acrylate, (methyl) dodecyl acrylate, a kind of or its mixture in ethoxy ethoxy ethyl propylene acid esters or tetrahydrofuran (THF) vinylformic acid (first) ester etc.;
The reactive monomer of said difunctionality and polyfunctionality is selected from 1, a kind of or its mixture in 4 butylene glycol diacrylates, 1,6 hexanediyl ester, propoxylation Viscoat 295, ethoxylated trimethylolpropane triacrylate, Viscoat 295, O-phthalic acid diethylene glycol diacrylate, ethoxylated neopentylglycol diacrylate, propylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate or the neopentylglycol diacrylate etc.;
Said pigment is selected from a kind of in phthalein cyanogen pigment, quinacridone pigment, azo pigment, benzimidazolone pigment or the charcoal blacks etc., and number have following various according to color index: black pigment comprises C.I. Pigment black 7 and 11, and wherein carbon black 7 is the most frequently used; Yellow ultramarine comprises C.I. Pigment Yellow 73 1,3,12,13,14,17,23,24,34,37,42,53,55,81,83,95,97,98,100,101,104,108,109,110,117,120,138,151,154,180 etc.C.I. pigment yellow 154 wherein, 180 are to use many kinds; Magenta pigment comprises C.I. Pigment red 1,2,3,5,17,22,23,31,38,48:2,48:3,48:4,49:1,52:2,53:1,57:1,60:1,63:1,63:2,64:1,81,83,88,92,101,104,105,106,108,112,114,122,123,146,149,166,168,170,172,177,178,179,185,190,193,202,207,255 and pigment violet 19,23,31 etc., C.I. pigment red 122 wherein, 185 and pigment violet 19 are kinds of better performances; Green pigment comprises C.I. pigment blue 1,2,15,15:1,15:2,15:3,15:4,15:5,15:6 etc., and what use often is the C.I. pigment Blue 15: 3 and 15:4; Veridian comprises C.I pigment Green 7 and 36.The addition of pigment is relevant with the pigment variety of selection in printing ink, and generally speaking, the pigment addition in the magenta ink is the highest;
In UV curable ink, no matter adopt any pigment as tinting material, all relate to dispersing of pigments.The colo(u)rant dispersion of printing ink of the present invention and traditional printing ink are different, the situation of colo(u)rant dispersion in the printing ink, be the size and the distribution of pigment particles, the performances such as gloss, rheological property, stability, tinting strength, opacifying power, transparency and tone of printing ink will be influenced, simultaneously because the nozzle diameter of shower nozzle has only the 30-50 micron, granules of pigments in the printing ink must be stabilized in 5 microns, the best smoothness that could guarantee ink-jet below 1 micron.Said dispersion agent is the hyper-dispersant that has anchor formula group, the SOLSPERSE series of preferred Avecia company, the CH series of the EFKAE series of EFKA company or Shanghai three positive companies.
The curing of printing ink is after relying on the light trigger absorbed radiation energy, and photopolymerization and crosslinking reaction take place between monomer and the prepolymer for the free radical trigger monomer and the monomer of formation, and the high molecular polymer that forms crosslinked tridimensional network is realized.Wherein, light trigger plays the effect of direct key to the curing speed of printing ink.Said light trigger and light-initiated synergist are selected from 2,2-dimethyl-2-hydroxyl-methyl phenyl ketone, 1-hydroxyl-1-encircles ethyl-Propiophenone, 1-hydroxy-cyclohexyl phenyl ketone, 2,2-dimethoxy-2-phenyl methyl phenyl ketone, the 2-isopropyl thioxanthone, 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide, 2-benzyl-2-dimethylamino-1-(4-morpholinyl phenyl)-butanone, two methyl ammonia-to oxygen azo-cycle butanone, methyldiethanolamine, 4-dimethylin ethyl benzoate, 2,4, a kind of in 6-trimethylbenzoyl phenyl-phosphonic acid ethyl ester or 2-methyl isophthalic acid-(4-methylthio group phenyl)-2-morpholine-1-acetone etc., the commercial trade mark has the IRGACURE and the DAROCUR of vapour Bagong department (Ciba Specialty Chemicals) (to comprise IRGACURE819, IRGACURE 369, IRGACURE 651 etc.), the RUNTECURE series of Changzhou Hua Tai company (comprises RUNTECURE 1104,1105,1101,1030,1056,1098,1024,1046,1065,1020,1065,1020,1100 and 1500 etc.);
Also comprise other additives such as thermo-stabilizer, ultraviolet absorbers and free radical scavenger in the printing ink of the present invention, these additives can improve the adaptability of printing ink, performances such as stability, and the addition of these additives accounts for the 0.1-2% of total ink;
Wherein thermo-stabilizer can be selected the organo-tin het stabilizer that Changfeng Chemical Plant, Shanghai produces; Ultraviolet absorbers is selected from the ultraviolet absorbers Tinuvin900 (2-(2`-hydroxy phenyl) benzotriazole) of vapour Bagong department, UV-9 (2-hydroxyl-4-methoxy benzophenone) that the Shenyang Fine Chemical Works is produced and UV-531 (Octabenzone) etc.; Free radical scavenger is selected from 5-N-oxide compound (DMPO).
Digital printing and dyeing comprise the steps: with the preparation method of UV curable ink
The mixture of pigment, reactive monomer, polyurethane acrylate prepolymer and dispersion agent is ground dispersion, obtain the pigment dispersion color paste of high density, add light trigger, light-initiated synergist, tensio-active agent and other additive then, regulate the index such as viscosity, colourity, surface tension of printing ink by high-speed stirring, with millipore filtration printing ink is filtered at last, filtering accuracy preferably less than 0.45 micron, promptly obtains digital printing and dyeing UV curable ink of the present invention less than 1 micron.
Milling time is 2-3 hour, is stirred under 8000 rev/mins the rotating speed to carry out, and churning time is 30-60 minute.
The number printing and dyeing UV curable ink that method obtains in the employing, on the PressVu UV ultraviolet light polymerization digital-code printer that U.S. Witter (VUTEK) company produces, respectively cotton, polyester-cotton blend and real silk fabric are printed and found, the ink-jet smoothness, beautiful in colour, print performance is very good, clear patterns on the fabric is true to nature, and has good hand touch, and advantage such as have excellent water-resistance.
Embodiment 1
Proportioning in the table 1 is the composition of magenta (M) printing ink, and at the 5-15 centipoise, surface tension is controlled at the 26-32 dynes per centimeter 50 ℃ of following viscosity controller.
The proportioning of table 1 magenta ink
| Component | Weight (gram) | Type |
| Ethoxy ethoxy ethyl propylene acid esters | 28.8 | The single functionality monomer |
| The tetrahydrofuran (THF) acrylate | 25.9 | The single functionality monomer |
| 1,6 hexanediyl ester | 22.8 | The difunctionality monomer |
| Viscoat 295 | 5 | The three-functionality-degree monomer |
| CN964 aliphatic urethane acrylate (Sartomer company) | 7.3 | Prepolymer |
| Strong fuchsin S4C benzoglyoxaline ketone pigment (Jiaozhou City's fine chemistry industry company) | 2.58 | Pigment |
| CH-13B hyper-dispersant (ShangHai SanZheng polymer Materials Co., Ltd) | 1.5 | Dispersion agent |
| 369 pairs of methyl ammonia of Irgacure-to bad butanone of oxygen nitrogen (U.S. vapour Bagong department) | 4.8 | Light trigger |
| Darocur 4043 ketoamine mixtures (U.S. vapour Bagong department) | 0.2 | Light-initiated synergist |
| FC430 fluorine surfactant (Minnesota Mining and Manufacturing Company) | 0.3 | Tensio-active agent |
| Other additive | 0.82 | Additive |
The mixture of pigment, reactive monomer, polyurethane acrylate prepolymer and dispersion agent is ground dispersion, obtain the pigment dispersion color paste of high density, add light trigger, light-initiated synergist, tensio-active agent and other additive then, regulate the index such as viscosity, colourity, surface tension of printing ink by high-speed stirring, with millipore filtration printing ink is filtered at last, filtering accuracy is 0.4 micron, promptly obtains digital printing and dyeing UV curable ink of the present invention.
Milling time is 2 hours, is stirred under 8000 rev/mins the rotating speed to carry out, and churning time is 45 minutes.What grind the dispersion process use is the ZETA experiment shredder of the anti-company of speeding of Germany (NETZSCH), and what whipping process used is the experiment mulser of Shanghai Weiyu Electromechanical Equipment Manufacture Co. Ltd..
Test discovery ink-jet smoothness after filtering according to the printing ink that said ratio is made on the Xaar128 shower nozzle, continous inkjet did not have disconnected black phenomenon in 80 minutes to be taken place.
Embodiment 2～4
Table 2 is printing oil proportions of other three kinds of color cyans, yellow and black (CYK) in the CMYK four look ink-jets.
The proportioning of table 2 cyan, yellow and black ink
| Component | Cyan weight (gram) | Yellow weight (gram) | Black weight (gram) |
| Ethoxy ethoxy ethyl propylene acid esters | ??23.8 | ????23.8 | ????23.8 |
| The tetrahydrofuran (THF) acrylate | ????28.7 | ????28.7 | ????28.7 |
| 1,6 hexanediyl ester | ????15.8 | ????15.8 | ????15.8 |
| Viscoat 295 | ????3 | ????3 | ????3 |
| CN964 aliphatic urethane acrylate (Sartomer company) | ????20 | ????20 | ????19.2 |
| Phthalocyanine Blue BGS (North America, Changzhou chemical company) | ????1.98 | ||
| Permanent yellow S3G (Jiaozhou City's fine chemistry industry company) | ????1.98 | ||
| REGAL 250R carbon black pigment (U.S. Cabot Co.,Ltd) | ????2.38 | ||
| CH-13B hyper-dispersant (ShangHai SanZheng polymer Materials Co., Ltd) | ????0.98 | ????0.98 | ????0.98 |
| 369 pairs of methyl ammonia of Irgacure-to oxygen azo-cycle butanone (U.S. vapour Bagong department) | ????4.4 | ????4.4 | ????4.8 |
| Darocur 4043 (U.S. vapour Bagong department) ketoamine mixture | ????0.2 | ????0.2 | ????0.2 |
| FC430 fluorine surfactant (Minnesota Mining and Manufacturing Company) | ????0.3 | ????0.3 | ????0.3 |
| Other additive | ????0.84 | ????0.84 | ????0.84 |
The preparation method is with embodiment 1, the magenta ink that cyan, yellow and the black ink of making according to said ratio made with example 1 is printed cotton, polyester-cotton blend and real silk fabric respectively on the PressVu UV ultraviolet light polymerization digital-code printer that U.S. Witter (VUTEK) company produces together and is found, the ink-jet smoothness, beautiful in colour, print performance is very good, clear patterns on the fabric is true to nature, and has good hand touch, and advantage such as have excellent water-resistance.
Claims (7)
1. UV curable ink is used in digital printing and dyeing, it is characterized in that component and weight percentage comprise:
Polyurethane acrylate prepolymer 5-30%
Reactive monomer 50-85%
Pigment 1-5%
Light trigger 3-8%
Light-initiated synergist 0.1-1%
Tensio-active agent 0.1-1%
Dispersion agent 0.5-3%
Other additive 0.1-2%.
Said reactive monomer is single functionality monomer, difunctionality monomer and three-functionality-degree or the monomeric mixture of polyfunctionality;
Wherein: the monomeric weight content of single functionality is the 50-70% of monomer total amount, and the monomeric weight content of difunctionality is the 15-40% of monomer total amount, and the monomeric weight content of three-functionality-degree or polyfunctionality is 5～20% of a monomer total amount;
Said pigment is selected from a kind of in phthalein cyanogen pigment, quinacridone pigment, azo pigment, benzimidazolone pigment or the charcoal blacks;
Said dispersion agent is selected from hyper-dispersant;
Said light trigger and light-initiated synergist are selected from 2,2-dimethyl-2-hydroxyl-methyl phenyl ketone, 1-hydroxyl-1-ring ethyl-Propiophenone, 1-hydroxy-cyclohexyl phenyl ketone, 2,2-dimethoxy-2-phenyl methyl phenyl ketone, 2-isopropyl thioxanthone, methyldiethanolamine, 4-dimethylin ethyl benzoate, 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide, two methyl ammonia-to oxygen azo-cycle butanone, 2,4, a kind of in 6-trimethylbenzoyl phenyl-phosphonic acid ethyl ester or 2-methyl isophthalic acid-(4-methylthio group phenyl)-2-morpholine-1-acetone;
2. UV curable ink is used in digital printing and dyeing according to claim 1, it is characterized in that the number-average molecular weight of polyurethane acrylate prepolymer is 1000-2000.
3. UV curable ink is used in digital printing and dyeing according to claim 1, it is characterized in that tensio-active agent is selected from perfluoroalkyl esterification thing or contains the fluorine surfactant of the perfluoroalkyl oligopolymer of oleophilic group.
4. digital printing and dyeing UV curable ink according to claim 1, it is characterized in that the reactive monomer of said single functionality is selected from vinylbenzene, vinyl toluene, N-ethene-2-Pyrrolidone, (methyl) acrylate, (methyl) Octyl acrylate, (methyl) Isooctyl acrylate monomer, (methyl) vinylformic acid ester in the different ninth of the ten Heavenly Stems, 2-phenoxyethyl acrylate (methyl) butyl acrylate, (methyl) isobutyl acrylate, (methyl) Hydroxyethyl acrylate, (methyl) vinyl cyanide, (methyl) decyl acrylate, (methyl) dodecylacrylate, (methyl) methyl acrylate, (methyl) Ethyl acrylate, (methyl) Hydroxyethyl acrylate, (methyl) vinylformic acid hydroxyl methyl esters, (methyl) Propylene glycol monoacrylate, (methyl) vinylformic acid hydroxyl isopropyl ester, (methyl) vinylformic acid hydroxy butyl ester, (methyl) vinylformic acid hydroxyl isobutyl ester, isobornyl acrylate, (methyl) dodecyl acrylate, a kind of or its mixture in ethoxy ethoxy ethyl propylene acid esters or tetrahydrofuran (THF) vinylformic acid (first) ester etc.;
The reactive monomer of said difunctionality and polyfunctionality is selected from 1, a kind of or its mixture in 4 butylene glycol diacrylates, 1,6 hexanediyl ester, propoxylation Viscoat 295, ethoxylated trimethylolpropane triacrylate, Viscoat 295, O-phthalic acid diethylene glycol diacrylate, ethoxylated neopentylglycol diacrylate, propylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate or the neopentylglycol diacrylate etc.
5. UV curable ink is used in digital printing and dyeing according to claim 1, it is characterized in that, said other additive comprises one or more the mixture in thermo-stabilizer, ultraviolet absorbers or the free radical scavenger;
Said thermo-stabilizer is an organo-tin het stabilizer;
Said ultraviolet absorbers is selected from 2-(2`-hydroxy phenyl) benzotriazole), 2-hydroxyl-4-methoxy benzophenone and Octabenzone etc.;
Said free radical scavenger is 5-N-oxide compound (DMPO)
6. according to the preparation method of each described digital printing and dyeing of claim 1～5, it is characterized in that comprising the steps: with UV curable ink
The mixture of pigment, reactive monomer, polyurethane acrylate prepolymer and dispersion agent is ground dispersion, obtain the pigment dispersion color paste of high density, add light trigger, light-initiated synergist, tensio-active agent and other additive then, regulate the index such as viscosity, colourity, surface tension of printing ink by high-speed stirring, with millipore filtration printing ink is filtered at last, filtering accuracy preferably less than 0.45 micron, promptly obtains digital printing and dyeing UV curable ink less than 1 micron.
7. method according to claim 6 is characterized in that milling time is 2-3 hour, is stirred under 8000 rev/mins the rotating speed to carry out, and churning time is 30-60 minute.
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