CN101020797A - Water-base ink for intaglio printing on aluminium foil and its prepn process and application - Google Patents
Water-base ink for intaglio printing on aluminium foil and its prepn process and application Download PDFInfo
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- CN101020797A CN101020797A CN 200710038203 CN200710038203A CN101020797A CN 101020797 A CN101020797 A CN 101020797A CN 200710038203 CN200710038203 CN 200710038203 CN 200710038203 A CN200710038203 A CN 200710038203A CN 101020797 A CN101020797 A CN 101020797A
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Abstract
The present invention relates to one kind of water-base ink for intaglio printing on aluminum foil and its preparation process and application. The ink consists of filming material 10-20 wt%, non-filming material 20-40 wt%, colorant 8-18 wt%, assistant 0.1-2.0 wt%, co-solvent 5.0-15.0 wt%, and resin for the rest. Compared with available technology, the present invention has the features of environment friendship, various products, simple technological process, etc.
Description
Technical field
The present invention relates to ink area, relate in particular to a kind of water-base ink for intaglio printing on aluminium foil and preparation technology thereof and application.
Background technology
Present domestic soft packaging industry production enterprise, especially the printing of food, medicine and tobacco major part adopts the mode of intaglio printing, at present in China, a large amount of printing ink that use are solvent type ink basically in the intaglio printing process, the organic volatile of these solvent type inks is not handled, directly enter in the workshop air, not only production environment is affected, also great harm will be arranged workers'health.This is because these solvent type inks contain 50～60% volatile organic content, in addition, in the production process of reality, also add usually and raise the required thinner of ink viscosity, so when printing is dry, the total content of the volatile constituent that printing ink came out even up to 70～80%.Benzene-like compounds severe overweight in this class printing house, concrete numerical value sees Table 1.
From medical angle, this can bring great irreversible injury to pressman's health.In addition, for the packing material that uses the solvent ink printing, its benzene kind solvent residual also is one of principal element of polluted product, especially directly wrap food, medicine etc. and the people closely bound up product of living.In a word, discharge of harmful gases, harmful liquid and solid use and discharging wastes in printing industry, and the residual of benzene kind solvent all constitutes serious threat to people's health and living environment.This environmental problem not only relates to the future of human civilization, also will be referred to the survival and development of enterprise.
Machine room's benzene in air that table 12003～2004 year are investigated is thing monitoring result and GB contrast:
| Monitoring project | Monitoring producer number | Monitoring average value measured (mg/m 3) | National standard (mg/m 3) | Comparing result |
| Benzene | 16 | 22.13 | 10 | Surpass 2.2 times |
| Toluene | 16 | 420.33 | 100 | Surpass 4.2 times |
| Dimethylbenzene | 16 | 105.62 | 100 | Slightly super |
Abroad, be limit pollution, some countries have formulated a series of rules such as " labour hygiene method ", " organic solvent emission method ".These laws, rules have determined the research and development direction of print production technology and printing ink.Under the pressure of these environmental protection laws, the research department and the producer of external printing industry have to research and develop solvent-free printing ink, i.e. non-volatility or few volatile printing ink.American-European countries is in having passed through the volatile organic solvent relevant with environmental protection (VOC) law around the nineties.VOC legal requirements printing house and printing ink production firm reach following requirement: the smell of the organic solvent that do not have outside job shop; In job shop, the concentration of volatile matter must be lower than 50mg/m
3(VOC), 100mg/m
3(CO) and 100mg/m
3(NO).
The performance comparison of table 2 water color ink and solvent ink
| Ink type | Processing property | Application performance | Environmental-protecting performance | ||
| Secure context | The discharging aspect | Healthy aspect | |||
| Solvent-borne type benzene is molten | Best | Best | Potential safety hazard | Severe contamination | Serious harm health |
| Solvent-borne type alcohol is molten | Best | Better | Potential safety hazard | The general pollution | General health risk |
| Water color ink | Better | Generally | Safer | Pollution-free | There is not harm |
So the important development trend of current package printing material is to improve its environmental performance, select the nuisanceless wrapping material of energy-conservation, low consumption, nontoxic, pollution-free, easy degraded, and printing ink is wherein to pollute comparatively serious raw material, therefore, how to reduce the environmental pollution of printing ink and energy consumption and just become the most important developing direction of printing ink industry.The maximum difference of water color ink and solvent type ink is that the solvent that uses in the water color ink is water and ethanol, and VOC content is extremely low, and environmental pollution is little.In the soft packaging industry, because it is main mode that solvent type ink all adopts the volatility drying, the boiling point of solvent is low more, just volatile more and discharge the toxic gas contaminate environment, also there is residual toxic substance on its surface after being completed for printing, and the solvent that water color ink uses is water and the ethanol got rid of from the VOC list etc., can reduce the discharging of VOC greatly.
In the production and development work of printing ink, in order to meet the requirement of VOC discharging, water color ink has and do not contain volatile organic solvent, and is nonflammable, can not damage the health of ink manufacturers and press operator, to characteristics such as atmospheric environment are pollution-free.Water color ink is as a kind of novel printing printing ink, do not have in the solvent borne printing ink that some is poisonous, objectionable impurities is residual and to the pollution of package goods in printed matter, improved overall environmental quality.So the practical application of water-based printing ink is trend of the times.
Water color ink abbreviates ink as, is processed through multiple grinding by water soluble resin, pigment dyestuff, tensio-active agent and associated additives.Along with the mankind to the enhancing of environmental consciousness and various countries to the legislation of VOC discharging with limit the quantity of, make printing ink trend towards the Water-borne modification development day by day, and the development of water-base resin has determined the development of printing ink.
1970, first-generation aqueous alkide resin was succeeded in developing, the exploitation of first-generation anion aqueous polyurethane.
1980, water soluble acrylic acid～polyurethane comixing system development.
1987, water soluble acrylic acid～urethane copolymerization system was succeeded in developing.
1989, water soluble acrylic acid～urethane copolymerization system became commercialized in Europe.
1992 are so far, and water-base resin of new generation exploitation is in fast development, have or not cosolvent system, non-saponification system, from the conjuncted system of commissure, bicomponent system, UV curing system etc. by the printing ink sector application.
Initial people mainly are to use dextrin, worm flood dragon, casein food grade, xylonic acid sodium etc. as connecting material when studying non-organic solvent type printing ink, prepared water-base gravure ink is used for the printing of general book and magazine, in industrial lower performance outer packagings such as some corrugated cardboards, generally adopt, but printability, especially all there is defective in various degree in aspect such as gloss, water tolerance, and printing effect is not really desirable.Along with the development of Materials science, be main raw material with maleated rosin modified resin, be equipped with casein food grade, worm flood dragon, have effect preferably.It is applicable to that the rubber convex printing machine prints all kinds of packaging paper products, but these products also exist gloss difference, not water-fast, pigment wetting is not good, poor adhesive force, easily bubble, problem such as film forming properties difference and thermostability are bad.At present, because polymer technology has had new breakthrough, polymkeric substance such as novel acrylic and urethane are the research and development of master's various water solubility copolymers, and the early stage common shortcoming of aqueous ink is overcome one by one.The water color ink that constantly develops into of science and technology provides many different high molecular weight resins to connect material, also can design different ink component according to different purposes, to obtain the required many performances of water color ink, as gloss, wear resistance, water tolerance, chemical resistant properties etc.
Existing in U.S.'s intaglio printing at present above 70% employing water color ink, flexographic printing 90% adopts water-based, other developed country, as Japan, Germany, France etc., in soft packagings such as plastics film printing, also more and more use water color ink, the film that Britain has made laws and banned use of solvent type ink printing packaging food to use.In the U.S., the water color ink that meets the VOC regulation will reach following two standards: during 1. the printing ink of user mode is formed, and volatile component ratio 25%, moisture content is more than 75%; 2. the printing ink that moisture content is few is under user mode, and nonvolatile composition is more than 60%.State such as America and Europe is in the technical China that leads over of aqueous product on the whole, and a gentle version aqueous ink technology at home has been gradually improved, water-base gravure plastics China ink, and the aqueous ink of metalized substrate etc. is in the starting stage.Along with China's entry into the WTO, the requirement of printing packaging to be adapted to international practices, the development of many kinds, multiduty novel aqueous printing ink is imperative.
In recent years, along with improving constantly of environmental requirement, developed country and area all making great efforts exploitation and using water color ink, progressively replace solvent type ink, and China is no exception, has strengthened the restriction condition of production operation and living environment equally, has proposed environmental requirement.Press is developing new industry, and printed matter is infiltration human lives one of product the most widely, and its development is subjected to the constraint of environmental protection condition equally.That the water color ink product has is nontoxic, have no irritating odor, non-corrosiveness, do not fire, not quick-fried, safety in utilization good, be unique non-toxic ink through the approval of U.S. food medicine association in all printing-inks, so it is widely used in food and pharmaceutical packing.Developed country's ink production year rate of increase has reached 7.6%, and its tempo is one of the fastest product of current fine chemical product.
In addition, because continuous appearance based on the various high molecular weight water soluble polymers of acrylic resin, promoted the development of environment-friendly type aqueous printing ink greatly, its performance is improved greatly, make environment-friendly type aqueous printing ink with the competition of solvent type ink in constantly widen Application Areas, not only be confined to paper, environment-friendly type aqueous printing ink can be suitable on the relative broad range base material in conjunction with different mode of printings.But at present, domestic water color ink can not satisfy these demands, and the old technology of tradition is with resin, and aminating agent and water stirring and dissolving resin liquid add auxiliary agent and pigment again, grind to form printing ink.This technology has following shortcoming: 1, the pigment powder flies upward easily during mixing of materials, and production place and producers are polluted harm, needs dust absorption recovery system, and input is many; 2, product needed just can reach required fineness through several all over grinding, and the required time is long, also refrigerating unit need be arranged, and power consumption is many; 3, product is single.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of environmental protection, product diversification, water-base ink for intaglio printing on aluminium foil simple to operate and preparation technology thereof and application for the weak point that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of water-base ink for intaglio printing on aluminium foil is characterized in that, this printing ink comprises filmogen 10～20wt%, non-filmogen 20～40wt%, and tinting material 8～18wt% adds auxiliary agent 0.1～2.0wt%, solubility promoter 5.0～15.0wt%, resin surplus.
Described filmogen comprises vinylformic acid～urethane copolymer resins.
Described non-filmogen is hard, high gloss, quick-dry type emulsion, solid content: 50wt%, and the pH value: 8.5, molecular weight (Mw): 200000, acidic value: 65mgKOH/g, second-order transition temperature: 105 ℃.
Described tinting material comprises pigment preparations color chips or color.
Described interpolation auxiliary agent comprises defoamer, anti-wear agent, aminating agent.
Described solubility promoter comprises deionized water.
The material that hydrophilic functional groups is arranged in the described resin, alkali soluble is used in the amine and the carboxyl salify on the side chain and water soluble characteristic is provided, and forms the polymer waterborne system, comprises acrylic resin.
A kind of preparation technology of water-base ink for intaglio printing on aluminium foil is characterized in that, this technology may further comprise the steps:
(1) preparation of resin liquid
Take by weighing a certain amount of solubility promoter and add in the interpolation auxiliary agent, stir, adjust pH=8.5～9.5, under 1000 rev/mins speed, stir, slowly add resin, make resin liquid;
(2) preparation of mill base
Take by weighing a certain amount of solubility promoter and add in the interpolation auxiliary agent, stir, adjust PH=8.5～9.5, slowly add the pigment color chips under the state of stirring at low speed, high speed dispersion is made, dispersible pigment color paste;
(3) preparation of printing ink
Take by weighing filmogen 10～20wt%, non-filmogen 20～40wt%, tinting material 8～18wt%, add auxiliary agent 0.1～2.0wt%, solubility promoter 5.0～15.0wt%, resin liquid 10～30wt%, mill base 35～40wt%, mix and stirred 30～60 minutes, adjust pH=8.5～9, promptly get water-base ink for intaglio printing on aluminium foil.
A kind of application of water-base ink for intaglio printing on aluminium foil is characterized in that, this water-base ink for intaglio printing on aluminium foil is applicable to the gravure printing presses of various models, and during printing, print speed is 10～80m/min; Soft aluminium foil: solidification value is 100～120 ℃, and be 3～5s set time; The hard aluminium foil: solidification value is 140～160 ℃, and be 5～7s set time.
The present invention proposes a kind of water-base ink for intaglio printing on aluminium foil nontoxic, tasteless, be applicable to the use on the gravure printing presses of various models, adopt the lamellar pigment no dust pollution in the preparation, environmental; Lamellar pigment reaches below 5 through fineness of dispersion when pigment production, dissolving back even particle size distribution, and tinting strength can exceed 10% than pigment grind, at gloss, all is better than the product of pigment grind on the levelling property; Production process can both can be finished by the dispersed with stirring dissolving, can shorten the production time greatly, saved for 1/2 time; Because the introducing of low viscosity resin and the high color density of color chips can be made into the low viscous mill base base-material of high density, the resin liquid that adds different performance by the later stage realizes product diversification, and technology is simple.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The performance of water color ink depends primarily on water-base resin and pigment, depends primarily on water-base resin as the attachment fastness of printing ink, viscosity, gloss, printing etc., and color of ink, saturation ratio, opacifying power, the transparency, flowability etc. depend on pigment.
Water-base ink for intaglio printing on aluminium foil mainly is made up of five parts:
First part is a filmogen, wherein accounts for 10～20wt% of prescription; (the key component of decision printing ink physical property; Adopt water soluble acrylic acid～urethane copolymerization system, water-soluble self-crossing emulsion);
Second section is non-filmogen, wherein accounts for 20～40wt% of prescription;
Third part is a tinting material, has alkali-proof pigment; Account for 8～18wt% of prescription;
The 4th part accounts for 0.1～2.0wt% of prescription for adding auxiliary agent;
The 5th part solubility promoters etc. account for 5.0～15.0wt% of prescription
Above-mentioned four part materials through thorough mixing, grind and to be equipped with water again and to form genus volatile dry, heat-curing type printing ink as modulation such as solvents.
This product adopts in technological design innovates the independence of two-part segmentation flexibly production technique.
Fs: the manufacturing of universal mill base base-material, utilize leading pigment preparations color chips technology.
Subordinate phase: the allotment of functional adjustment resin liquid.
The following innovative point of setting forth gordian technique of the present invention from application innovation and process innovation respectively.
1. application innovation
1) adjusts resin liquid
Macromolecule emulsion choosing folding: emulsion is mainly by regulating rheological, the patience of filming, the filming emulsion of attachment fastness and regulate not filming emulsion of exsiccant.Patience is good after the few film forming of the hydrophilic functional groups of emulsion, like this and product in the past relatively solved the slowly dry of long-term puzzlement aqueous ink, water tolerance, the drawback that anti-ethanol is bad.
1. we have selected a hard, high gloss, quick-dry type emulsion, its solid content aspect filming emulsion not: 50%, and the pH value: 8.5, molecular weight (Mw): 200000, acidic value: 65mgKOH/g, second-order transition temperature: 105 ℃; Because its hardness can provide better wear resistance, film-forming properties can not accelerate that the release property to water remedies the slow shortcoming of volatilization in the system drying process.
2. in the selection of filming emulsion, carry out specific aim choosing folding according to the characteristic (metallization) of printing element.
Metallization material attachment fastness concerning water color ink is an a great problem always, by the experiment of various materials is found that vinylformic acid～urethane copolymer resins (PUA) can fine solution adhere to a difficult problem.Mainly be GPRS ratio and polymer type: physics mixes assembly, chemical polymerization.
2) collocation diversity
Based on mill base can with the characteristics of the compatibility of other multiple water-based material, we can have selection on the multiple formulations adjustment resin liquid in later stage, just can produce the different products that require by simple collocation hybrid technique.
The paper flexo
The plastics flexo
Aluminium foil, the paper of aluminizing, metallized film intaglio printing
Water soluble acrylic acid and aqueous polyurethane composite system advantage, vinylformic acid has good performance at aspects such as glossiness, water tolerance, weathering resistancies, and urethane has good behaviour on sticking power, chemical resistant properties, film-forming properties, and both bound energy obviously improve the performance of printing ink.Two-stage method technology can simply realize the variation production of product again, has enlarged the scope of application of product.
2, technical matters
Production technique (water-based pigment preparations production technique)
The mill base base-material has versatility, can use same base-material to adjust resin liquid by the later stage like this and can mix the printing ink that is applicable to different substrate materials and different modes printing, and collocation property is strong, extends multiple kind, and is simple to operate.
The mill base base-material
1. the choosing of water soluble resin is rolled over
The most important effect of water soluble resin is wettability and the dispersiveness to pigment, in the resin of choosing folding hydrophilic functional groups (O-,-COOH ,-OH ,-NH is arranged
2) material, alkali soluble is used in the amine and the carboxyl salify on the side chain and water soluble characteristic is provided, form the polymer waterborne system, salify amination method is a polymer waterborneization method commonly used, and the polymer that contains a certain amount of acidic functionality is used in the amine and salify, and its reaction is as follows:
R-COOH+NH
3RCOO-NH
4+ water-solubleization.
The consumption of amine and kind to polymer and aquation after film forming performance considerable influence is arranged.Optional folding ammoniacal liquor, monoethanolamine, trolamine, N, N-dimethylethanolamine etc., the viscosity of the high more printing ink of degree of neutralization is big more, generally is controlled at pH7.5～8.5 for good.
By the screening of several kinds being determined to select for use vinylbenzene～vinylformic acid water soluble resin.It can have good compatibility with other multiple water-based material, in adjusting in the later stage more range of choice can be arranged, and its low VOC makes more environmental protection of system.By between the different molecular weight resin relatively, can determine under the identical viscosities situation that low-molecular-weight resin can make the high solution that contains admittedly reaching, can improve gloss, the fullness of shade of system greatly.Higher acid number can improve wetting and dispersed to pigment.
Proportioning (weight ratio g):
| 1# | 2# | 3# | |
| A resin (lower molecular weight Mm2500) | 300 | 400 | |
| B resin (high molecular Mm6500) | 300 | ||
| Deionized water | 615 | 500 | 615 |
| 25% ammonia solution | 85 | 100 | 85 |
| Add up to | 1000 | 1000 | 1000 |
The viscosimetric analysis result:
| 1# | 2# | 3# | |
| Viscosity mPa.s/25 ℃ | 200 | 320 | 300 |
| PH value | 8.2 | 8.2 | 8.2 |
The physical and chemical performance of A resin:
Acidic value: 220～260mgKOH/g
Molecular weight (Mw): 2500～3000
VOC (organic volatile)＜0.5%
Second-order transition temperature :+72 ℃
2. selection of pigment
Water color ink requires pigment-dispersing good, so because be that the alkaline system alkali resistance will be got well by pigment coloring.By with the technological cooperation of pigment factory such as refined rich, prompt rainbow, developed the pigment preparations color chips (color) that is fit to this product, the most high-quality flexographic ink has adopted this technology in the world now, and comparing it with pigment powder production technique has many advances and incomparable advantage: high gloss, high tinting strength (improving about 10%), high-clarity, print stream levelling, production process that stability in storage is good, good do not have pigment dust, optimization production technology, production efficiency and improve.
Have benefited from the improvement of pigment technology, only need in this explained hereafter the color chips dissolving is disperseed to make the mill base base-material, need not the mixing of pigment powder, process of lapping, improved production efficiency greatly.
3. pigment and resin liquid solid content and consumption determines
Specific pigment is provided the estimation of optimal resin concentration and consumption with reference to Denier yield point testing method.
Method: the resin liquid of different concns is joined respectively in the pigment of the identical weight of having weighed, make it to form a soft mixture that force of cohesion is arranged with transferring ink knife on sheet glass, firmly to grind to scrape, when mixture flows down from transferring ink knife, there is a rubber-like material to retract to during end and transfers on the ink knife, be " yield point " state this moment.Few as if the resin liquid measure that adds, viscosity is just high, mobile meeting variation; If add-on is excessive, the elastical retraction of material will disappear, and it is illustrated in the minimum that can reach resin solution in the medium dispersing apparatus with the resin of this state point concentration, and just the maximum of pigment is filled good.If when not having the situation of smallest point, this just represents that resin and solvent combination can not make stable dispersion system to pigment.
The dispersion stabilization test:
The ratio that color chips is determined during in the water-base resin different concns, adding auxiliary agents such as an amount of dispersion agent, defoamer disperses stirring and dissolving complete, get 20ml and put into test tube, draw 0.5ml behind the static 24h at the following 1cm of liquid level place, adding the dilution of 8ml water stirs, measure transmittance (T%) with spectrophotometer (540), to characterize dispersion stabilization.The T value is big more, shows that the dispersion system optical density(OD) is more little, and pigment free setting is many more, and system is unstable more; The T value is more little, shows that the dispersion system optical density(OD) is big more, and pigment free setting is few more, and system is stable more.
Measurement result:
Carbon black:
| Grind basic ratio | 0.8 | 0.9 | 1.1 | 0.5 | 0.4 |
| Resin liquid concentration % | 15 | 20 | 25 | 30 | 35 |
| The T value | 21.6 | 21 | 20.2 | 21.4 | 22.2 |
Phthalocyanine blue (15:4):
| Grind basic ratio | 1.4 | 1.5 | 1.65 | 1.2 | 0.85 |
| Resin liquid concentration % | 1 5 | 20 | 25 | 30 | 35 |
| The T value | 34.9 | 34.5 | 33.2 | 34.4 | 35 |
Red (57:1)
| Grind basic ratio | 0.95 | 1.1 | 1.25 | 1.4 | 0.7 |
| Resin liquid concentration % | 15 | 20 | 25 | 30 | 35 |
| The T value | 38 | 37.3 | 36.2 | 35.1 | 36.5 |
Yellow (14)
| Grind basic ratio | 1.33 | 1.45 | 1.6 | 1.1 | 0.9 |
| Resin liquid concentration % | 15 | 20 | 25 | 30 | 35 |
| The T value | 34.3 | 33.8 | 33 | 32.3 | 33.7 |
This shows carbon black the most difficult dispersion in water color ink, the easiest dispersion of redness.
On production efficiency and quality, improve a lot with product comparison in the past by above uniqueness place in technology and selection.
Embodiment 1
The result of the concrete enforcement of 4014 Yellow inks experiment measures:
Experiment material:
Y-4014 Pigment Yellow 73 color chips 50 grams
J-8760 acrylic resin 100 grams
A-1879 aqueous acrylic emulsion (film forming) 50 grams
A-1890 aqueous acrylic emulsion (not film forming) 100 grams
Deionized water is an amount of
Defoamer, anti-wear agent, aminating agent are an amount of
Experimental procedure:
1, takes by weighing 100 gram deionized waters and add aminating agents 1 gram, stir, adjust about PH=8.5, under the state that stirs, slowly add the J-8760 acrylic resin, make the resin liquid of 30% J-8760, place standby.
2, take by weighing 100 gram deionized waters and add aminating agent 2 grams, stir, adjust about PH=9,, under the state that stirs, slowly add Y-4014 pigment color chips, high speed dispersion is made 40% Y-4014 dispersible pigment color paste, places standby.
3, preparation 4014 Yellow inks
Y-4014 dispersible pigment color paste 35wt%
The resin liquid 10wt% of J-8760
A-1879 aqueous acrylic emulsion (film forming) 25wt%
A-1890 aqueous acrylic emulsion (not film forming) 30wt%
Deionized water 10wt%
Defoamer 0.2wt%～0.4wt%
Anti-wear agent 0.5wt%～0.8wt%
Aminating agent 0.8wt%～1.0wt%
By above proportioning above-mentioned materials is mixed stirring 40 minutes, adjust PH=8.5～9 of printing ink, viscosity 4# cup is measured as 24 seconds.
4, it is an amount of to get above-mentioned 4014 Yellow inks, is positioned on the gravure proof press, gets 6 micron thickness aluminium foils and PET aluminium plating film and draws a design on printing press respectively, and back numerical value is as follows after testing:
| Project | Technical indicator |
| Color | Approximate standard specimen |
| Fineness (μ m) | ≤10 |
| Tinting strength (%) | 90～110 |
| Viscosity (No. 4 cups of coating, second/25 ℃) | 24 |
| First dryness (mm/30 second) | 38 |
| Water tolerance | Well put on the skin and wash 20 times |
| Package stability (5～30 ℃) | The good placement for 1～June |
| Gloss (%) | ＞60 |
| Attachment fastness | 4～5 |
Above related detecting method reference:
Color is pressed: GB/T13217.1,
Gloss is pressed: GB/T13217.2,
Fineness is pressed: GB/T13217.3,
Viscosity is pressed: GB/13217.4,
Tinting strength is pressed: GB/13217.6,
Attachment fastness is pressed: GB/13217.7.
5, this series ink is through the printing house in fact after the machine printing, and roughly with to test gained close, the printing adaptability of this printing ink, the color saturation of printing, gloss etc. and solvent ink comparison meet or exceed its requirement to institute's numerical value that detects substantially.
Embodiment 2
A kind of result of concrete enforcement of red ink experiment measures:
Experiment material:
Pigment red color 50 grams
J-8760 acrylic resin 100 grams
A-1879 aqueous acrylic emulsion (film forming) 50 grams
A-1890 aqueous acrylic emulsion (not film forming) 100 grams
Deionized water is an amount of
Defoamer, anti-wear agent, aminating agent are an amount of
Its preparation technology may further comprise the steps:
1, takes by weighing 100 gram deionized waters and add aminating agents 1 gram, stir, adjust about PH=9.5, under the state that stirs, slowly add acrylic resin, make the resin liquid of 10% J-8760, place standby.
2, take by weighing 100 gram deionized waters and add aminating agent 2 grams, stir, adjust about PH=9,, under the state that stirs, slowly add the pigment color, high speed dispersion is made 35% dispersible pigment color paste, places standby.
3, preparation red ink
Take by weighing filmogen 10wt%, non-filmogen 40wt%, tinting material 8wt% adds auxiliary agent 0.1wt%, solubility promoter 15.0wt%, resin liquid 10wt%, mill base 16.9wt% mixes and stirred 30 minutes, adjusts pH=8.5, promptly gets water-base ink for intaglio printing on aluminium foil.
The application of this water-base gravure aluminium foil red ink is characterized in that this water-base ink for intaglio printing on aluminium foil is applicable to the gravure printing presses of various models, and during printing, print speed is 10m/min; Soft aluminium foil: solidification value is 100 ℃, and be 3s set time; The hard aluminium foil: solidification value is 140 ℃, and be 5s set time.
Embodiment 3
A kind of result of concrete enforcement of blue ink experiment measures:
Experiment material:
Pigment blue color chips 50 grams
J-8760 acrylic resin 100 grams
A-1879 aqueous acrylic emulsion (film forming) 50 grams
A-1890 aqueous acrylic emulsion (not film forming) 100 grams
Deionized water is an amount of
Defoamer, anti-wear agent, aminating agent are an amount of
Its preparation technology may further comprise the steps:
1, take by weighing 100 gram deionized waters and add aminating agents 1 gram, stir, adjust about PH=8.5, under the state that stirs, slowly add acrylic resin, make 30% resin liquid, place standby.
2, take by weighing 100 gram deionized waters and add aminating agent 2 grams, stir, adjust about PH=9.5,, under the state that stirs, slowly add the pigment color chips, high speed dispersion is made 40% dispersible pigment color paste, places standby.
3, preparation blue ink
Take by weighing filmogen 20wt%, non-filmogen 20wt%, tinting material 18wt% adds auxiliary agent 2wt%, solubility promoter 5.0wt%, resin liquid 30wt%, mill base 8wt% mixes and stirred 60 minutes, adjusts pH=9, promptly gets water-base ink for intaglio printing on aluminium foil.
The application of this water-base gravure aluminium foil blue ink is characterized in that this water-base ink for intaglio printing on aluminium foil is applicable to the gravure printing presses of various models, and during printing, print speed is 80m/min; Soft aluminium foil: solidification value is 120 ℃, and be 5s set time; The hard aluminium foil: solidification value is 160 ℃, and be 7s set time.
Described filmogen comprises vinylformic acid～urethane copolymer resins.
Described non-filmogen is hard, high gloss, quick-dry type emulsion, solid content: 50wt%, and the pH value: 8.5, molecular weight (Mw): 200000, acidic value: 65mgKOH/g, second-order transition temperature: 105 ℃.
The material that hydrophilic functional groups is arranged in the described resin, alkali soluble is used in the amine and the carboxyl salify on the side chain and water soluble characteristic is provided, and forms the polymer waterborne system.
Claims (9)
1. a water-base ink for intaglio printing on aluminium foil is characterized in that, this printing ink comprises filmogen 10～20wt%, non-filmogen 20～40wt%, and tinting material 8～18wt% adds auxiliary agent 0.1～2.0wt%, solubility promoter 5.0～15.0wt%, resin surplus.
2. a kind of water-base ink for intaglio printing on aluminium foil according to claim 1 is characterized in that, described filmogen comprises vinylformic acid～urethane copolymer resins.
3. a kind of water-base ink for intaglio printing on aluminium foil according to claim 1 is characterized in that, described non-filmogen is hard, high gloss, quick-dry type emulsion, solid content: 50wt%, the pH value: 8.5, molecular weight (Mw): 200000, acidic value: 65mgKOH/g, second-order transition temperature: 105 ℃.
4. a kind of water-base ink for intaglio printing on aluminium foil according to claim 1 is characterized in that described tinting material comprises pigment preparations color chips or color.
5. a kind of water-base ink for intaglio printing on aluminium foil according to claim 1 is characterized in that, described interpolation auxiliary agent comprises defoamer, anti-wear agent, aminating agent.
6. a kind of water-base ink for intaglio printing on aluminium foil according to claim 1 is characterized in that described solubility promoter comprises deionized water.
7. a kind of water-base ink for intaglio printing on aluminium foil according to claim 1 is characterized in that, the material of hydrophilic functional groups is arranged in the described resin, alkali soluble, use in the amine and the carboxyl salify on the side chain and water soluble characteristic is provided, form the polymer waterborne system, comprise acrylic resin.
8. the preparation technology of a water-base ink for intaglio printing on aluminium foil is characterized in that, this technology may further comprise the steps:
(1) preparation of resin liquid
Take by weighing a certain amount of solubility promoter and add in the interpolation auxiliary agent, stir, adjust pH=8.5～9.5, under 1000 rev/mins speed, stir, slowly add resin, make resin liquid;
(2) preparation of mill base
Take by weighing a certain amount of solubility promoter and add in the interpolation auxiliary agent, stir, adjust PH=8.5～9.5, slowly add the pigment color chips under the state of stirring at low speed, high speed dispersion is made, dispersible pigment color paste;
(3) preparation of printing ink
Take by weighing filmogen 10～20wt%, non-filmogen 20～40wt%, tinting material 8～18wt%, add auxiliary agent 0.1～2.0wt%, solubility promoter 5.0～15.0wt%, resin liquid 10～30wt%, mill base 35～40wt%, mix and stirred 30～60 minutes, adjust pH=8.5～9, promptly get water-base ink for intaglio printing on aluminium foil.
9. the application of a water-base ink for intaglio printing on aluminium foil is characterized in that, this water-base ink for intaglio printing on aluminium foil is applicable to the gravure printing presses of various models, and during printing, print speed is 10～80m/min; Soft aluminium foil: solidification value is 100～120 ℃, and be 3～5s set time; The hard aluminium foil: solidification value is 140～160 ℃, and be 5～7s set time.
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