CN102732087B - Anti-channel conflict code-spurting printing ink and its preparation method - Google Patents
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Abstract
The invention relates to an anti-channel conflict code-spurting printing ink and its preparation method. The invention firstly provides a code-spurting printing ink. Weighed according to the gross weight of the code-spurting printing ink, it is composed of the following raw materials of: by weight, 0.1-0.8% of a colorless organic fluorescent coloring agent, 2-10% of an organic solvent soluble dye, 1-10% of polymer resin and 80-90% of an organic solvent. The invention also provides a preparation method of the above code-spurting printing ink. The code-spurting printing ink provided by the invention remains properties and functions of a common printing ink, and is also endowed with a certain anti-channel conflict, anti-tamper and anti-counterfeit hiding performance, thus effectively hitting counterfeiters, increasing difficulty in counterfeiting to a large extent and avoiding further forgery. Simultaneously, according to the code-spurting printing ink, plain code and secret code jet printing can be realized only with an inkjet printing machine. Therefore, it is not necessary for manufacturers to increase new inkjet printing machines for secret code jet printing, thus greatly simplifying production process and saving production cost.
Description
Technical field
The present invention relates to a kind of code-spraying printing ink and preparation method thereof, relate in particular to a kind ofly for preventing code-spraying printing ink of falsifying and preparation method thereof, belong to code jetting device branding fluid field.
Background technology
The numeral, English alphabet or the Chinese character information that on the packing material surface of food and medicine etc., have ink jet printer for printing, these information are all generally that the form with bar code exists, they have expressed the date manufactured, have also implied the details such as production batch, production unit, point of origin and market of product simultaneously.Existing coding technique is all spray plain code, and discernible information under visible ray, is convenient to human consumer's identification like this.
Vast due to China region, the difference of standard of living, so, for some commodity, between different market, aspect selling price, there is larger difference.This species diversity causes some illegal dealers that the goods string in low selling price place is sold to the place of high selling price, therefrom earns difference profit.In falsifying behavior, some illegal dealers directly go here and there goods to sell, and have some goods because marked the information such as the place of production by bar code, make human consumer can understand at an easy rate the true market of goods, likely the verity of goods is produced and queried, thereby do not remove to buy this goods, some illegal dealer is for fear of this problem, can be by the painting former coding information of erasing, then in the former coding place again method of spray printing information needed, reach the object of falsifying, when goods closes on validity period or quality guaranteed period, the mode that some illegal dealer also can distort by smearing bar code information changes validity period or quality guaranteed period, lead human consumer into a trap.
Such illegal activities are difficult for being discovered, the management of Hui Gei manufacturing enterprise causes confusion, and for consumers, is not easy to judge the problems referred to above, probably bought expired food or medicine through altering, this behavior serious harm food safety and drug safety.
In current coding field, the form that can spray private mark by employing is avoided being tampered, adopt Antiforge fluorescent ink spray printing bar code, this bar code is invisible under visible ray, when adopting UV-light to irradiate, people just can see the information that bar code embodies, and this bar code is not easy to be smeared or wipe, and can avoid occurring distorting in this way the problem of bar code information.But, if only adopt the mode of spray printing private mark, human consumer cannot see the information that bar code embodies easily so, this is irresponsible way, if and adopt the form of spray printing private mark and plain code simultaneously, because the two ink adopting cannot carry out spray printing by same code jetting device, therefore need to adopt respectively different ink jet printer for printing private mark and plain code, and plain code and private mark can be printed on different positions, just need on originally with regard to orderly production line, extrude two station arrangements placement code jetting devices, adopt at present different ink jet printer for printing plain codes, the production stage of private mark is as follows: the wrapping body (for example packing bottle) of the milk-product on production line or drink product etc. is filling through filling apparatus, after sealing, by transport tape, transported, two code jetting devices are fixed respectively in side at the certain area of transport tape, one is used for spray printing plain code, one is used for spray printing private mark, in transmitting procedure, the product passing through on transport tape is utilized to two code jetting devices respectively on specified location or spray printing bar code or numerical code simultaneously.Detection to product spray yard can be carried out in the following ways: whether plain code can be directly detects on spray printing by naked eyes, the detection of private mark needs, on production line, fluorescent lamp equipment is installed and irradiates demonstration private mark, then through the product introduction information acquisition system of detection, plain code can gather by scanning device; Private mark needs to have glimmering light-struck photographing device to gather, and the successful plain code of information acquisition on each product is associated with private mark and deposit database in order to realize the object to anti-channel conflict.
Although adopt the mode of different ink jet printer for printing plain codes, private mark can solve some problems, also have some following shortcomings:
1, because the two ink adopting cannot carry out spray printing by same code jetting device, therefore need to adopt respectively different ink jet printer for printing private mark and plain code, this can increase production cost.
2, the packing of product is for requirement attractive in appearance, can carry out spray printing position limited, sometimes cannot meet the requirement different positions spray printing plain code and private mark: plain code represents by black bar code or numerical code, generally in white or approach spray printing on the packing of product background color of white color system, identification, to detect effect good; Private mark issues light display look in fluorescent lamp, and identification on the single surface of background color, to detect effect good.
3, private mark detection can increase production cost: private mark detection just need to be added fluorescent lamp device for detection of the spray printing effect of private mark on production line, need on production line, increase station and equipment and testing staff, greatly increases production cost.
4, the collection of private mark information need to be provided with in addition glimmering light-struck photographing device on production line, and plain code, private mark associating information software, increases production cost.
Therefore, how adopting same code jetting device is one of problem demanding prompt solution in this area by a step realization while coding private mark and plain code.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of novel code-spraying printing ink, by the cooperation of different material composition, the bar code information that resulting code-spraying printing ink spray printing obtains can form plain code and two parts of private mark at same position simultaneously, after even plain code is smeared and is wiped, private mark part still can retain, and can farthest avoid the situation that occurs that bar code information is tampered.
For achieving the above object, first the present invention provides a kind of code-spraying printing ink, and in the gross weight of this code-spraying printing ink, it comprises that following raw material forms:
Colourless organic fluorescence tinting material, 0.1-0.8%; Solvent color, 2-10%; Fluoropolymer resin, 1-10%; Organic solvent, 80-90%.
In above-mentioned code-spraying printing ink, preferably, the colourless organic fluorescence tinting material adopting can comprise one or more in benzothiazole derivant, pyran derivate, thiophene derivant, benzophenone disulfonic acid derivatives, heterocycle phenolic compound and coumarin derivatives etc.Above-mentioned colourless organic fluorescent dye should have certain solvability in organic solvent, and the solubleness that above-mentioned colourless organic fluorescence tinting material can be chosen in butanone is not less than 1.5% colourless organic fluorescence tinting material.This colourless organic fluorescent dye also should have the perviousness to base material, and the wiping of the various acid-alkali salts of ability and organic solvent, preferably, colourless organic fluorescence tinting material is one or more in aobvious blue dyestuff in coumarin derivatives, heterocycle phenolic compound and benzophenone disulfonic acid derivatives etc.More preferably in heterocycle phenolic compound, show blue dyestuff, this colourless organic fluorescence blue dyes has good solubility property in butanone solvent, has good dispersiveness in resin.And can be penetrated into the erosion resistance of maintenance to various chemical in base material.
Metallized dye has outstanding tinting strength, in organic solvent, there is good solubility and charging property, being suitable as very much tinting material adds in code-spraying printing ink, in addition, the azoic dyestuff of solubility and anthraquinone dye are also applicable to, therefore, preferably, the organic solvent soluble dye adopting in code-spraying printing ink provided by the present invention can comprise metallized dye, anthraquinone dye, azoic dyestuff, one or more in heterocyclic dye and coloured fluorescence dye etc., and, the solubleness of organic solvent soluble dye in organic solvent is more than 100g/L, preferably more than 300g/L, more preferably more than 500g/L.According to the preferred embodiments of the invention, the dyestuff adopting can comprise: Brown 42[ORASOL Brown 2GL (Ciba)], Brown 43[ORASOL Brown 2RL (Ciba)], Brown 44[ORASOL Brown 6RL (Ciba)], Red 24, Red 25, Red 118, Red 125[ORASOL RedG (Ciba)], Red 130[ORASOL Red 3GL (Ciba)], Red 233[ORASOL Red 2B (Ciba)], Blue5, Blue 35, Blue 67[ORASOL Blue GN (Ciba)], Blue70[ORASOL Blue GL (Ciba)], Blue 136[ORASOL Blue BL (Ciba)], Yellow 14, Yellow 146[ORASOL Yellow 4GN (Ciba)], Yellow25[ORASOL Yellow 3R (Ciba)], Yellow 89[ORASOL Yellow 2RLN (Ciba)], solvent Yellow16, solvent Yellow 56, solvent Yellow 93, solvent Yellow 163, disperse Yellow 16, Orange2, Orange 11, Black 27[VALIFAST Black 3830 (Orient Chemical)], Black 28[ORASOLBlack CN (Ciba)], Black 29[ORASOL Black RLI (Ciba)], solvent Black 3[Neptun BlackX60 (Basf)], solvent Black 5, solvent Black 7 etc.As required, one or more in above dyestuff can be re-dubbed to required color.Above-mentioned dyestuff is in the problem such as at least there will not be crystallization in year, separate out.The content (weight percent) of these dyestuffs in code-spraying printing ink is advisable with 2-10%, is preferably 3-8%, more preferably 5-6%.
In code-spraying printing ink of the present invention, what proportion was maximum is solvent, the solvent adopting is preferably organic solvent, this organic solvent can comprise one or more in ketone, ester class, ethers and alcoholic solvent etc., such as: ketones solvent: acetone, butanone, methyl iso-butyl ketone (MIBK), pimelinketone, pentanone, N-Methyl pyrrolidone etc.; Esters solvent: vinyl acetic monomer, N-BUTYL ACETATE, propyl acetate, Iso Butyl Acetate, ethylene glycol ether acetate, 2-Butoxyethyl acetate, 1-Methoxy-2-propyl acetate, ethyl lactate, methylcarbonate etc.; Alcoholic solvent: ethanol, propyl alcohol, butanols, Virahol, ethylene glycol, propylene glycol, glycerine, glycol ether, amylalcohol, primary isoamyl alcohol etc.; Ether solvent: ether, butyl ether, ethylene glycol ethyl ether, butyl glycol ether, propylene glycol monomethyl ether, diethylene glycol ether, Diethylene Glycol butyl ether etc.Above-mentioned organic solvent is dissolving dye and fluoropolymer resin simultaneously, can make ink keep certain spray viscosity not affecting under deliquescent prerequisite, can also provide suitable surface tension for ink, and guarantee suitable rate of drying.Meanwhile, according to the solubility property to dyestuff and fluoropolymer resin, and to being sprayed the consistency of object (base material), and dry speed, and consider the protection to shower nozzle, can select one or more solvents to carry out composite use.
In code-spraying printing ink provided by the invention, the fluoropolymer resin adopting can be one or more the composition in acrylic resin, nitrocellulose resin, cellulose acetate butyrate resin, cellulose acetate propionate resin, polyvinyl butyral resin, modified rosin resin, petroleum resin, maleic acid resin, urethane resin, vinyl chloride-vinyl acetate resin, polyketone resin and aldehyde ketone resin etc.Preferably, the weight-average molecular weight of above-mentioned fluoropolymer resin is 4000-60000, and more preferably 13000-45000, most preferably is 22000-35000.Fluoropolymer resin all should possess good ink dot fissility and Rechargeability, and the content of fluoropolymer resin may be controlled to account for the 1-10% of code-spraying printing ink gross weight, is preferably 3-5%.
Characteristic based on code-spraying printing ink, ink should have certain Rechargeability, and code-spraying printing ink provided by the invention also can comprise static inhibitor if desired.This static inhibitor can be one or more in quaternary ammonium salt, an alkali metal salt, alkaline earth salt, perchlorate, nitrate, picrate, carboxylate salt and sulfonate etc.
The present invention also provides the preparation method of above-mentioned code-spraying printing ink, and it comprises the following steps:
First, the rotating speed with homogenizer with 600-800 rev/min stirs, and with the organic solvent that accounts for organic solvent total amount 70%, fluoropolymer resin is dissolved;
After fluoropolymer resin dissolves completely, with homogenizer, with the rotating speed of 600-800 rev/min, carry out the stirring of 30 minutes, the raw material of pressing ink forms the colourless organic fluorescence tinting material of dissolving, then under the rotating speed of 18000-23000 rev/min, continues to dissolve disperse by high-shear emulsion machine;
After colourless organic fluorescence tinting material dissolves completely, the rotating speed with homogenizer with 600-800 rev/min stirs, and dissolves solvent color;
After solvent color dissolves completely, polishing residue organic solvent, and add conductive agent (can be the conventional conductive agent in this area), obtain code-spraying printing ink.
Wherein, in dissolution process, the order feeding intake is as above (if rear dissolving resin or coloured dyestuff dissolve prior to fluorescence dye, capital causes the phenomenon that other dissolved thing not exclusively dissolves to occur), other operation also can be carried out with reference to the preparation method of other code-spraying printing inks of this area.
In above-mentioned preparation method provided by the invention, preferably, the viscosity controller of prepared code-spraying printing ink is at 3.0-6.2CP/25 ℃ of (BROOKFIELD DV-E, rotor S00), electric conductivity is controlled at 500-1600 μ S (HANNAHI98331), and surface tension is controlled at 30-35dyn/cm (20 ℃) (KRUSS BP2100).
The present invention also provides a kind of coding jet printing method, and it comprises with a code jetting device spray printing bar code or numerical code on wrapping body, forms the step of plain code and private mark simultaneously, and the ink adopting during spray printing is above-mentioned code-spraying printing ink.
In above-mentioned coding jet printing method, preferably, can will there is the plain code of identical information and private mark spray printing at same position.By embodying the plain code of identical information and private mark spray printing till same, on wrapping body, can see plain code, and after plain code is wiped, for example, by corresponding equipment (luminescent lamp), can observe and be hidden in the beneath private mark of plain code, thereby can reach false proof object.
Above-mentioned coding jet printing method provided by the invention only adopts a code jetting device just can realize the spraying of plain code and private mark, and it can adopt following concrete steps to carry out:
The wrapping body (for example packing bottle) of the milk-product on production line or drink product etc. is filling through filling apparatus, by transport tape, transported after sealing; Prospective region on transmission route is fixed a code jetting device, and to spray printing bar code or numerical code on the specified location of the product passing through on transport tape, this ink jet printer for printing bar code or numerical code are used provided by the present invention for preventing the code-spraying printing ink of falsifying.
The product that sprayed coding transports in process to detect whether spray plain code by naked eyes at transport tape, then through the product introduction information acquisition system of detection, plain code can be gathered and be deposited Information Monitoring in database in order to realize the object to anti-channel conflict by scanning device.When spraying plain code, private mark also can be sprayed in the lump, without carrying out other detection.
Above-mentioned coding jet printing method provided by the invention is owing to having adopted code-spraying printing ink provided by the invention, only need a code jetting device just can realize the spray printing of plain code and private mark, can save station and code jetting device on production line, reduce production costs, simultaneously, detection after spray printing only needs visual inspection, does not want in order to detect private mark, to increase extra equipment again, also can reduce production costs.
Code-spraying printing ink provided by the present invention is when keeping original ink performance and function, adopt two kinds of substance that show colors, a kind of is apparent tinting material under visible ray, in order to explicit information, adding of another kind of fluorescence dye, be embodied under visible ray invisible, but under ultra violet lamp, can show original plain code information, and, this fluorescence dye should have the perviousness to base material, can oil resistant the wiping of the personal solvent of China ink, simultaneously can resistance to various acid-alkali salts or the wiping of each kind solvent.
Adopt code-spraying printing ink of the present invention, after carrying out spray printing by a code jetting device, can obtain a kind of bar code that comprises plain code and two parts of private mark, be above-mentioned two kinds of parts that different substance that show colors are shown, wherein, plain code is shown to human consumer, and private mark is hidden, even if plain code is smeared or wiped, private mark also can be used as the information source that inquiry is altered.
Spray printing ink coloured moiety of the present invention can be wiped easily, but not coloured moiety is penetrated in base material with colourless form, cannot perceive the true form message details of non-coloured moiety spray printing under visible ray.By the irradiation of ultraviolet lamp, can obviously see the fluorescence true form information that is penetrated into base material, just can distinguish thus whether this bar code information is tampered, thereby reach the object that prevents falsifying and forge bar code information, and, adopt fluorescence true form information that code-spraying printing ink provided by the invention forms can resistance to various soda acids, solvent do not destroy back and forth the obliterating of base material.
Code-spraying printing ink of the present invention, when having kept the performance and function of common ink, also possesses the hiding of certain anti-channel conflict, anti-tamper, anti-counterfeiting, when effectively having hit fake producer, has also strengthened to a great extent the difficulty of faking.Simultaneously, this code-spraying printing ink only needs a code jetting device just can realize the spray printing of plain code and private mark, make manufacturer increase new code jetting device for spray printing private mark, greatly simplified the technological process of production, code jetting device and station have been saved, saved production cost, the detection of being also convenient to coding simultaneously monitors.And code-spraying printing ink provided by the present invention also has the performances such as satisfactory stability, weather resistance.
Embodiment
For technical characterictic of the present invention, object and beneficial effect being had more clearly, understand, existing technical scheme of the present invention is carried out to following detailed description, but can not be interpreted as restriction that can practical range of the present invention.
Embodiment 1
The present embodiment provides a kind of anti-channel conflict code-spraying printing ink, and it has following raw material and forms, and the gross weight of code-spraying printing ink of take is 100%:
The anti-channel conflict code-spraying printing ink that the present embodiment provides can prepare by following steps:
First with the organic solvent that accounts for organic solvent (butanone and pimelinketone) total amount 70% by fluoropolymer resin (
2028) dissolve;
After fluoropolymer resin dissolves completely, by the raw material of ink, form dissolving and disperse colourless organic fluorescent dye (DELI-5);
After colourless organic fluorescent dye dissolves completely, dissolve solvent color (ORASOL Black RLI);
After solvent color dissolves completely, carry out viscosity test, then polishing residue organic solvent, obtains anti-channel conflict code-spraying printing ink.
The code-spraying printing ink preparing is carried out viscosity test and adjusts viscosity, then carry out 3 μ m, 1 μ m, 0.45 μ m filtering membrane three-stage filtration, the numerical value of the electric conductivity of test ink, surface tension, viscosity.The viscosity of this ink is 3.0-6.2CP/25 ℃, and specific conductivity is 500-1600 μ S, and surface tension is 30-35Dyn/cm.
Concrete test result is as follows: viscosity: 3.6CP/25 ℃ (BROOKFIELD DV-E, rotor S00), electric conductivity: 1000 μ S (HANNAHI98331), surface tension: 32.5dyn/cm (20 ℃) (
).
Embodiment 2
The present embodiment provides a kind of anti-channel conflict code-spraying printing ink, and it has following raw material and forms, and the gross weight of code-spraying printing ink of take is 100%:
Preparation process and parameter testing reference example 1, the design parameter of ink prepared by the present embodiment is as follows: viscosity: 3.8CP/25 ℃, electric conductivity: 1600 μ S, surface tension: 33.5dyn/cm (20 ℃).
Embodiment 3
The present embodiment provides a kind of anti-channel conflict code-spraying printing ink, and it has following raw material and forms, and the gross weight of code-spraying printing ink of take is 100%:
Preparation process and parameter testing are identical with embodiment 1, and the design parameter of ink prepared by the present embodiment is as follows: viscosity: 3.8CP/25 ℃, electric conductivity: 760 μ S, surface tension: 33.5dyn/cm (20 ℃).
Embodiment 4
The present embodiment provides a kind of anti-channel conflict code-spraying printing ink, and it has following one-tenth and is grouped into, and the gross weight of code-spraying printing ink of take is 100%:
Preparation process and parameter testing are identical with embodiment 1, and the design parameter of ink prepared by the present embodiment is as follows: viscosity: 3.8CP/25 ℃, electric conductivity: 1600 μ S, surface tension: 33.5dyn/cm (20 ℃).
Embodiment 5
The present embodiment provides a kind of anti-channel conflict code-spraying printing ink, and it has following one-tenth and is grouped into, and the gross weight of code-spraying printing ink of take is 100%:
Preparation process and parameter testing are identical with embodiment 1, and the design parameter of ink prepared by the present embodiment is as follows: viscosity: 3.8CP/25 ℃, electric conductivity: 1600 μ S, surface tension: 33.5dyn/cm (20 ℃).
Comparative example 1
This comparative example provides a kind of anti-channel conflict code-spraying printing ink, and it has following one-tenth and is grouped into, and the gross weight of code-spraying printing ink of take is 100%:
This ink, containing colourless organic fluorescence tinting material, is not the ink that black can not be wiped entirely.
Preparation process and parameter testing are identical with embodiment 1, and the design parameter of ink prepared by the present embodiment is as follows: viscosity: 3.6CP/25 ℃, electric conductivity: 630 μ S, surface tension: 33.3dyn/cm (20 ℃).
Comparative example 2 is containing the black ink of fluorescein tinting material
This comparative example provides a kind of anti-channel conflict code-spraying printing ink, and it has following one-tenth and is grouped into, and the gross weight of code-spraying printing ink of take is 100%:
Preparation process and parameter testing are identical with embodiment 1, and the design parameter of ink prepared by this comparative example is as follows: viscosity: 3.8CP/25 ℃, electric conductivity: 1600 μ S, surface tension: 33.5dyn/cm (20 ℃).
Comparative example 3 fluorescein invisible ink
This comparative example provides a kind of anti-channel conflict code-spraying printing ink, and it has following one-tenth and is grouped into, and the gross weight of code-spraying printing ink of take is 100%:
Preparation process and parameter testing are identical with embodiment 1, and the design parameter of ink prepared by this comparative example is as follows: viscosity: 3.8CP/25 ℃, electric conductivity: 700 μ S, surface tension: 32.5dyn/cm (20 ℃).
Comparative example 4
This comparative example provides a kind of code-spraying printing ink, and the R-1183 ink that industrial tag system company limited produces is risen in Beijing match.
Comparative example 5
This comparative example provides a kind of code-spraying printing ink, 9510 common black inks (horse is agree Imaje (Shanghai) sign Science and Technology Ltd.).
Comparative example 6
This comparative example provides a kind of code-spraying printing ink, the common black ink of IR-270BK (domino sign Science and Technology Ltd.).
Comparative example 7
This comparative example provides a kind of code-spraying printing ink, and the stealthy blue ink of R-1363 that industrial tag system company limited produces is risen in Beijing match.
Test case
The code-spraying printing ink difference spray printing of embodiment and comparative example, at Lile packaging substrate surface, then with butanone or alcohol solvent wiping, to the disappearance of spray printing information, is observed under ultra violet lamp; Then again after spray printing, then with butanone or alcohol solvent wiping, then observe under ultra violet lamp.Concrete test result is as shown in table 1.
Table 1
The resistance to wiping properties test of private mark:
By after the code-spraying printing ink spray printing in embodiment, with the Lile packaging thing surface after solvent wiping spray printing, carry out after more than ten times wiping back and forth with reagent such as various organic solvents and acid-alkali salts at position at information spray printing, under ultraviolet lamp, observe: have or not fluorescence information, test result is as shown in table 2.
Table 2
By above-mentioned test result, can find out, the material of code-spraying printing ink of the present invention aobvious fluorescence under ultraviolet lamp is penetrated in base material, and can tolerate the wiping of all kinds of chemical, and hiding information is difficult for being discovered, more difficultly by painting, erased, can realize the object of information trace.Meanwhile, on a code jetting device, ejection can embody the information of plain code and two kinds of effects of private mark, has simplified technical process, has also reduced production cost.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a code-spraying printing ink, in the gross weight of this code-spraying printing ink, it is comprised of following raw material:
2. a code-spraying printing ink, in the gross weight of this code-spraying printing ink, it is comprised of following raw material:
3. a code-spraying printing ink, in the gross weight of this code-spraying printing ink, it is comprised of following raw material:
4. a code-spraying printing ink, in the gross weight of this code-spraying printing ink, it is comprised of following raw material:
5. a code-spraying printing ink, in the gross weight of this code-spraying printing ink, it is comprised of following raw material:
6. a coding jet printing method, it comprises with a code jetting device spray printing bar code or numerical code on wrapping body, forms the step of plain code and private mark simultaneously, and the ink adopting during spray printing is the code-spraying printing ink described in claim 1-5 any one.
7. coding jet printing method according to claim 6, wherein, has the plain code of identical information and private mark spray printing at same position.
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| CN103102740B (en) * | 2012-12-12 | 2014-09-17 | 张家港威迪森化学有限公司 | Fluorescent ink and preparation method thereof |
| CN104263080B (en) * | 2014-08-18 | 2016-08-24 | 余姚费尔文具有限公司 | A kind of aqueous double anti-forge election ink and preparation method thereof |
| CN104371422A (en) * | 2014-11-01 | 2015-02-25 | 湖南天惟信息技术有限公司 | Ink-jet printer ink |
| CN105860671B (en) * | 2016-06-13 | 2018-10-12 | 上海金泛斯标识有限公司 | High abrasion code-spraying printing ink and preparation method thereof |
| CN105838148B (en) * | 2016-06-13 | 2018-09-11 | 上海金泛斯标识有限公司 | Antistatic code-spraying printing ink and preparation method thereof |
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| CN101353496A (en) * | 2007-07-27 | 2009-01-28 | 北京大学 | Manufacture and new use of transparent fluorescent red ink |
| CN101870834A (en) * | 2010-06-18 | 2010-10-27 | 北京赛腾工业标识系统有限公司 | Code-spraying printing ink |
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|---|---|---|---|---|
| CN1158347A (en) * | 1996-02-27 | 1997-09-03 | 王秋林 | Mimeograph suitable for code sprayer |
| CN101353496A (en) * | 2007-07-27 | 2009-01-28 | 北京大学 | Manufacture and new use of transparent fluorescent red ink |
| CN101870834A (en) * | 2010-06-18 | 2010-10-27 | 北京赛腾工业标识系统有限公司 | Code-spraying printing ink |
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