CN1483893A - Anti-counterfeit fabre. anti-counterfeit anti-altering paper made from same and mfg method thereof - Google Patents

Anti-counterfeit fabre. anti-counterfeit anti-altering paper made from same and mfg method thereof Download PDF

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Publication number
CN1483893A
CN1483893A CNA021306583A CN02130658A CN1483893A CN 1483893 A CN1483893 A CN 1483893A CN A021306583 A CNA021306583 A CN A021306583A CN 02130658 A CN02130658 A CN 02130658A CN 1483893 A CN1483893 A CN 1483893A
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false
fiber
paper
false proof
fluorescence powder
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CNA021306583A
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CN1226486C (en
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董永宪
张象喜
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Shaanxi Yindun Hengan Technology Development Co ltd
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BEIJING JINDUNHENGYE ANTI-COUNTERFEIT TECH Co Ltd
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Priority to CN 02130658 priority Critical patent/CN1226486C/en
Publication of CN1483893A publication Critical patent/CN1483893A/en
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Abstract

The present invention relates to an anti-false fibre which can be identified by utilizing short-wave UV ray. Its technical scheme is characterized by that the characteristic fluorescent powder which can be organic acid salt compound of terbium or organic acid salt compound of europium or their mixture as anti-false identification material can be added in the fibre. Said invention also discloses an anti-false obliteration-resisting paper containing the above-mentioned anti-false fibre, and its technical scheme is characterized by that in the paper-making pulp the above-mentioned anti-false fibre and obliteration-resisting agent which can be fluorane compound, phenolic compound and guanidine compound are added. Besides, said invention also provides the method for making said paper.

Description

Anti-false fiber, adopt the false proof altering prevention paper and the manufacture method thereof of this anti-false fiber
Technical field
The false proof altering prevention paper and the manufacture method thereof of this anti-false fiber, are adopted at especially a kind of anti-false fiber in the altering prevention paper field that the invention belongs to anti-false fiber and adopt anti-false fiber.
Background technology
Forging criminal activities such as adulterium passport, identity card and other certificates, credit card, marketable securities, bank certificate, VAT invoice, customs's document, diploma, lottery ticket, trademark is on the rise, cause extremely bad influence politically, bring serious economy loss for country, collective and individual.In order to take precautions against and hit this class criminal activity, the research and development of many-sided anti-counterfeiting technology and products thereof have extensively been carried out both at home and abroad.In forgery and adulterium case, the case of adulterium document occupies the majority by correction, and paper is again various documents and the indispensable carrier of file.Therefore, the development of cheque paper, particularly altering prevention paper is one of emphasis of anti-counterfeiting technology research always.At present, development and production have also been used anti-counterfeiting technology products such as multiple anti-counterfeit printing printing ink, false proof graphic designs and printing technology, watermark, safety line, filament cheque paper, laser hologram, have brought into play important function in false proof cracking down on counterfeit goods.But it is more and more brilliant that the offender forges the means of adulterium, particularly by altering various vouchers and the authority that alters, reaches the degree of mixing the spurious with the genuine.False proof means in the past, more and more incompatibility social demand needs to create new false proof means and improves antifalse effect.
Summary of the invention
One of purpose of the present invention provides does not a kind ofly have fluorescence under long wave ultraviolet, but anti-false fiber that can radiothermy ultraviolet ray (254nm) identification.
Another object of the present invention provide a kind of employing can radiothermy ultraviolet ray (254nm) the false proof altering prevention paper that contains above-mentioned anti-false fiber of identification.
Another object of the present invention provide a kind of can radiothermy ultraviolet ray (254nm) manufacture method of the false proof altering prevention paper that contains above-mentioned anti-false fiber of identification.
Technical scheme of the present invention is: anti-false fiber, it is characterized in that in fiber, adding characteristic fluorescence powder as false proof discriminating material, the acylate complex that described characteristic fluorescence powder is a terbium, the acylate complex of europium, or the mixture of the acylate complex of the acylate complex of terbium and europium.
In fiber, add by anti-false fiber gross weight 1% to 7%, as the characteristic fluorescence powder of false proof discriminating material, the mixture of the complex of the complex of the complex that described characteristic fluorescence powder is trivalent terbium ion and Pyromellitic Acid salt, trivalent europium ion and Pyromellitic Acid salt or trivalent terbium ion and Pyromellitic Acid salt and trivalent europium ion and Pyromellitic Acid salt complex.
Described characteristic fluorescence powder as false proof discriminating material is by anti-false fiber gross weight 2% to 5%.
Described characteristic fluorescence powder as false proof discriminating material counts 3% to 4% by the anti-false fiber gross weight.
Described synthetic high polymer is one or more of modified poly body material of above-mentioned high polymers such as polyethylene terephthalate, polybutylene terephthalate, polycaprolactam, polyhexamethylene adipamide, polypropylene.
Containing anti-false fiber in false proof altering prevention paper, anti-alter agent, is 1 ‰ to 3 ‰ by the gross weight anti-false fiber of false proof altering prevention paper, and anti-to alter agent be 5 ‰ to 1%, and described anti-correction agent comprises fluorane compounds, phenolic compound and guanidine compound.
Gross weight anti-false fiber by false proof altering prevention paper is 1.5 ‰ to 2.5 ‰, and anti-correction agent is 6 ‰ to 9 ‰.
Gross weight fiber by false proof altering prevention paper is 2 ‰ to 2.5 ‰, and anti-correction agent is 7 ‰ to 8 ‰.
A kind of manufacture method of making the false proof altering prevention paper of described employing anti-false fiber, it is characterized in that the anti-false fiber silk that will contain the characteristic fluorescence powder proportionally joins in the paper pulp, then, to prevent that the correction agent grinds to form the particle below 10 microns respectively, be added in the paper pulp in proportion or be added in the surface size, produce by common offset paper technology.
The manufacture method of the false proof altering prevention paper of described employing anti-false fiber, it is characterized in that proportionally joining in the paper pulp anti-false fiber silk that contains the characteristic fluorescence powder, press art base paper explained hereafter body paper, to prevent altering agent then and grind to form particle below 10 microns respectively, be added in the coating fluid, produce by the technology of art paper.
Effect of the present invention is: adds the characteristic fluorescence powder in the fiber, under short wave ultraviolet 254nm irradiation, can see redness, yellow, green fluorescence, or the fluorescence of one or more colors wherein.When the characteristic fluorescence powder is the complex of acylate of terbium especially during the complex of trivalent terbium ion and Pyromellitic Acid salt, under short wave ultraviolet 254nm irradiation, can see green fluorescence; When the characteristic fluorescence powder is the complex of acylate of europium especially during the complex of trivalent europium ion and equal stupid tetramethyl hydrochlorates, under short wave ultraviolet 254nm irradiation, can see red fluorescence; When the characteristic fluorescence powder is the complex of trivalent terbium ion, trivalent europium ion and all stupid tetramethyl hydrochlorate, under short wave ultraviolet 254mm irradiation, can see yellow fluorescence.Described characteristic fluorescence powder, appearance colorless, under long wave ultraviolet (money identifier) irradiation, no fluorescence occurs.The filament that is used for the paper encryption has cotton fiber silk and synthetic fiber, cotton fiber disperses than being easier in paper pulp, and synthetic fiber are not easy to disperse in paper pulp, adopt the high polymer synthetic fiber, the characteristic fluorescence powder can with the fiber strong bonded, solubility is very little in water.
Anti-correction agent among the present invention has three types: fluorane compounds, as 3-diethylamino-6-methyl-7-chlorine fluorane, 3-cyclohexylamine-6-chlorine fluorane etc.; Phenolic compound is as bisphenol-A, benzyl p-hydroxybenzoate etc.; Guanidine compound is as diphenylguanidine, dimethylbenzene guanidine etc.These compounds all can play anti-effect of altering to correction fluid commonly used.
The anti-correction agent for preparing is joined in the paper, three kinds of modes are arranged: the one, in paper-making process, be added in the paper pulp; The 2nd, when top sizing, be added in the applying glue liquid; The 3rd, be coated on paper surface.To these three kinds of modes, found through experiments, these three kinds of modes respectively have pluses and minuses, add when copying paper, anti-alter stable performance, but anti-loss of altering agent is very big, stop fewerly in paper, are difficult to reclaim, and the cost of false proof altering prevention paper is obviously improved; Add when top sizing, cost is lower, but is difficult to control, the anti-agent skewness of altering, the anti-effect of altering of influence; When being coated with the automatic high-speed coating machine, coating can strictly be controlled, and anti-correction agent is evenly distributed, and can make full use of, and loss seldom anti-correction performance is obviously improved, but cost is higher relatively.
Contain the feature anti-false fiber and alter the false proof altering prevention paper of agent, have the anti-performance of altering on the one hand, during the various correction agent of spot printing, can produce obvious color at once and change, and can keep more than 5 years.Can detect its characteristic fluorescence by short wave ultraviolet on the other hand, be a kind of multiple anti-fake altering prevention paper, has the confidentiality height, the characteristics that antifalse effect is good.
The present invention is described further below in conjunction with embodiment.
The specific embodiment
Embodiment 1: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.05kg as false proof discriminating material, and described characteristic fluorescence powder is the complex of the acetate of terbium, is green fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polycaprolactam, and its manufacture method is with the section of characteristic fluorescence powder and polycaprolactam and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 2: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.02kg as false proof discriminating material, and described characteristic fluorescence powder is the complex of the ethanedioic acid of europium, is red fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polyethylene terephthalate, and its manufacture method is with the section of characteristic fluorescence powder and polyethylene terephthalate and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 3: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.01kg as false proof discriminating material, and described characteristic fluorescence powder is the complex of the hexadecylic acid of terbium, is green fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polycaprolactam, and its manufacture method is with the section of characteristic fluorescence powder and polycaprolactam and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 4: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.09kg as false proof discriminating material, described characteristic fluorescence powder is the mixture of complex of the hexadecylic acid of the stearic complex of europium and terbium, is yellow fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polycaprolactam, and its manufacture method is with the section of characteristic fluorescence powder and polycaprolactam and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 5: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.06kg as false proof discriminating material, and the complex of the complex of the phenylacetic acid that described characteristic fluorescence powder is a terbium and the terephthalic acid (TPA) of europium is yellow fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polycaprolactam, and its manufacture method is with the section of characteristic fluorescence powder and polycaprolactam and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 6: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.07kg as false proof discriminating material, and described characteristic fluorescence powder is the complex of trivalent terbium ion and Pyromellitic Acid salt, is green fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polyethylene terephthalate, and its manufacture method is with the section of characteristic fluorescence powder and polyethylene terephthalate and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 7: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.06kg as false proof discriminating material, and described characteristic fluorescence powder is a trivalent europium ion and equal complex of stupid tetramethyl hydrochlorate, is red fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polycaprolactam, and its manufacture method is with the section of characteristic fluorescence powder and polycaprolactam and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 8: anti-false fiber, in the 1kg fiber, add the characteristic fluorescence powder of 0.04kg as false proof discriminating material, described characteristic fluorescence powder is the mixture of the complex of the complex of trivalent europium ion and Pyromellitic Acid salt and trivalent europium ion and all stupid tetramethyl hydrochlorate, is yellow fluorescence under short-wave ultraviolet light irradiation.Described fiber is a polycaprolactam, and its manufacture method is with the section of characteristic fluorescence powder and polycaprolactam and auxiliary material mixes, granulation, on the synthetic fiber spinning machine, presses fusion silk spinning prepared.
Embodiment 9: according to embodiment 6 described methods, add the characteristic fluorescence powder of 0.05kg in every 1kg polypropylene fibre as false proof discriminating material.
Embodiment 10: according to embodiment 7 described methods, add the characteristic fluorescence powder of 0.03kg as false proof discriminating material in every 1kg polypropylene fibre.
Embodiment 11: according to embodiment 8 described methods, add the characteristic fluorescence powder of 0.02kg as false proof discriminating material among every 1kg poly fiber.
Embodiment 12: according to embodiment 6 described methods, add the characteristic fluorescence powder of 0.01kg as false proof discriminating material in every 1kg poly fibre.
Embodiment 13: fluorane compounds, phenolic compound and three kinds of anti-correction agent of guanidine compound are ground to form the particle of diameter below 10 microns respectively, to prevent altering agent then joins in the oven dry stock according to the ratio of 0.007kg in every 1kg oven dry stock, the ratio of three kinds of anti-correction agent is roughly the same, again the ratio of the anti-false fiber silk that contains the characteristic fluorescence powder according to 0.003kg in every 1kg paper pulp joined in the paper pulp, produce according to the production technology of common offset paper.
Embodiment 14: the ratio of the anti-false fiber silk that contains the characteristic fluorescence powder according to 0.002kg in every 1kg oven dry stock joined in the paper pulp, then fluorane compounds, phenolic compound and three kinds of anti-correction agent of guanidine compound are ground to form the particle of diameter below 10 microns respectively, to prevent altering agent then joins in the surface size according to the ratio of 0.009kg in every 1kg surface size, the ratio of three kinds of anti-correction agent is roughly the same, produces according to the production technology of common offset paper.
Embodiment 15: the ratio of the anti-false fiber silk that contains the characteristic fluorescence powder according to 0.0025kg in every 1kg oven dry stock joined in the paper pulp, press art base paper explained hereafter body paper, then fluorane compounds, phenolic compound and three kinds of anti-correction agent of guanidine compound are ground to form the particle of diameter below 10 microns respectively, the ratio of anti-correction agent according to 0.01kg in every 1kg coating fluid joined in the coating fluid, produce according to the coating process of art paper.
Embodiment 16: according to embodiment 13 described methods, add according to adding the anti-ratio of altering agent of 0.001kg shortwave fluorescence falsification preventing filament and 0.008kg in every 1kg oven dry stock.
Embodiment 17: according to embodiment 14 described methods, according to adding 0.003kg shortwave fluorescence falsification preventing filament in every 1kg oven dry stock, the ratio of 0.008kg will prevent that altering agent joins in the surface size in every 1kg surface size.
Embodiment 18: according to embodiment 15 described methods, according to adding 0.003kg characteristic fluorescence powder anti-false fiber silk in every 1kg oven dry stock according to art base paper explained hereafter body paper, the ratio of anti-correction agent according to 0.008kg in every 1kg coating fluid joined in the coating fluid, produce according to the coating process of art paper.
The performance test situation of the false proof altering prevention paper of the present invention:
Table 1 is the performance test table as a result of the false proof altering prevention paper of the present invention.All kinds of correction abilities are stronger, often the correction fluid that uses produces opaquing fluid 1 and 2, Japan as 84 thimerosals, sodium hydroxide solution, liquor natrii hypochloritis, liquor potassic permanganate, Taiwan and produces the stronger solvent of opaquing fluid and solvability such as ethanol, acetone, chloroform, dimethyl formamide (DMF), dimethylbenzene etc., point is coated on the false proof altering prevention paper, obvious color all occurring changes, do the contrast experiment with external like product simultaneously, its anti-correction scope and the obvious degree of variable color are better than external like product.Among the figure, " +++" represent that variable color is obvious, " ++ " expression variable color is more obvious, and "+" expression variable color can see that "-" represents not variable color.
Table 1
The correction fluid title Altering prevention paper of the present invention CBSI Germany produces altering prevention paper S107 Germany produces altering prevention paper Inversk Britain produces altering prevention paper
84 thimerosals ????+++ ????++ ??+++ ?+
Sodium hydroxide solution ????+++ ????++ ??+ ?++
The liquor natrii hypochloritis ????+++ ????+ ??++ ?+
Liquor potassic permanganate ????+++ ????+ ??+ ?++
Opaquing fluid 2 is produced in Taiwan ????+++ ????+ ??+++ ?-
Opaquing fluid 1+2 is produced in Taiwan ????+++ ????++ ??++ ?++
Japan produces opaquing fluid ????++ ????+ ??++ ?-
Ethanol ????+ ????- ??+ ?+
Acetone ????+++ ????- ??+ ?+
Chloroform ????+++ ????+ ??++ ?++
Dimethyl formamide (DMF) ????+++ ????++ ??++ ?+++
Dimethylbenzene ????+++ ????+ ??+++ ?+++
2, table 2 is quality inspection tables as a result of the false proof altering prevention paper of the present invention, and assay shows that this paper quality reaches the national standard of offset paper.Fracture length is the mean value of vertical, horizontal, and expansion and contraction is the numerical value of the every variation 10% of humidity, and "+" of retractility and "-" represent " elongation " and " contraction " respectively.
Table 2:
Interventions Requested Unit The result
Paper basis weight g/m 2 89.5
Smoothness s Simultaneously: 93.7 another sides: 137.6
Whiteness 87.94
Fracture length m 3847
The lateral extensometer shrinkage Elongation 0.095
Shrink 0.115
Print surface intensity (in sticking m/s 0.90
Moisture content 6.4
The Cobb value g/m 2 23.0
Dirt count 0.2mm 2----0.5mm 2 Individual/m 2 0
0.5mm 2----1.5mm 2 0
>1.5mm 2 0
Retractility Vertically moistening -0.26
Vertically air-dry -0.75
Laterally moistening +2.50
Laterally air-dry +0.64
3, senile experiment: (1) places 100 ℃ of insulating boxs with false proof altering prevention paper, kept 5 minutes, and the color no change, the anti-performance of altering is constant.(2) false proof correction paper is placed on relative humidity 90%, temperature is in 60 ℃ the insulating box, to keep 24 hours, the color no change, and the anti-performance of altering is constant.(3) false proof altering prevention paper was placed-10 ℃ of refrigerators 24 hours, color and the anti-performance of altering are constant.(4) strip of spot printing chemistry correction fluid and solvent was placed 3 years, and chemical correction fluid colour developing color is constant, and solvent colour developing color is constant.
4, printing performance experiment: on the high-speed offset press more than 10,000 per hour, use common offset ink, carried out the printing performance experiment.(1) chromatography experiment with same shading version, is observed under magnifying glass, and streakline is clear, does not see distortion.Expansion and contraction is little in length and breadth to show paper, and the registering chromatography precision is good.(2) net-point printing experiment, with the printing of site version, the site of printing off is clear, shows that the site reduction is good.(3) the shading version is used in high speed printing experiment, under 10,000/hour speed, prints more than 2,000, and the seal literary composition is clear, and paper feed is normal, does not find paperboard, dry linting, falls phenomenons such as silk, set-off, and showing does not have static on the paper, and surface strength is good, and oil absorbency is good.
More than every test result show that the false proof altering prevention paper of succeeding in developing that contains characteristic fluorescence powder anti-false fiber can take precautions against effectively that chemistry is altered and the solvent correction, its anti-correction scope and the obvious degree of variable color are better than external like product, stable performance, anti-counterfeit capability is stronger, and printing performance is good.

Claims (10)

1, a kind of anti-false fiber, it is characterized in that in fiber, adding characteristic fluorescence powder as false proof discriminating material, the acylate complex that described characteristic fluorescence powder is a terbium, the acylate complex of europium, or the mixture of the acylate complex of the acylate complex of terbium and europium.
2, anti-false fiber according to claim 1, it is characterized in that in fiber, adding by anti-false fiber gross weight 1% to 7%, as the characteristic fluorescence powder of false proof discriminating material, the mixture of the complex of the complex of the complex that described characteristic fluorescence powder is trivalent terbium ion and Pyromellitic Acid salt, trivalent europium ion and Pyromellitic Acid salt or trivalent terbium ion and Pyromellitic Acid salt and trivalent europium ion and all stupid tetracarboxylic acid salt complex.
3, anti-false fiber according to claim 1 is characterized in that described characteristic fluorescence powder as false proof discriminating material counts 2% to 5% by the anti-false fiber gross weight.
4, anti-false fiber according to claim 1 is characterized in that described characteristic fluorescence powder as false proof discriminating material counts 3% to 4% by the anti-false fiber gross weight.
5,, it is characterized in that described fiber is one or more of modified poly body material of above-mentioned high polymers such as polyethylene terephthalate, polybutylene terephthalate, polycaprolactam, polyhexamethylene adipamide, polypropylene according to right 1,2,3,4 described anti-false fibers.
6, a kind of false proof altering prevention paper that adopts the described anti-false fiber of aforesaid right requirement 1-5, it is characterized in that in false proof altering prevention paper, containing anti-false fiber, anti-correction agent, gross weight anti-false fiber by false proof altering prevention paper is 1 ‰ to 3 ‰, anti-correction agent is 5 ‰ to 1%, and described anti-correction agent comprises fluorane compounds, phenolic compound and guanidine compound.
7, the false proof altering prevention paper of employing anti-false fiber according to claim 6 is characterized in that the gross weight anti-false fiber by false proof altering prevention paper is 1.5 ‰ to 2.5 ‰, and anti-correction agent is 6 ‰ to 9 ‰.
8, the false proof altering prevention paper of employing anti-false fiber according to claim 6 is characterized in that the gross weight fiber by false proof altering prevention paper is 2 ‰ to 2.5 ‰, and anti-correction agent is 7 ‰ to 8 ‰.
9, a kind of manufacture method of making the false proof altering prevention paper of claim 6,7,8 described employing anti-false fibers, it is characterized in that the anti-false fiber silk that will contain the characteristic fluorescence powder proportionally joins in the paper pulp, then, to prevent that the correction agent grinds to form the particle below 10 microns respectively, be added in the paper pulp in proportion or be added in the surface size, produce by common offset paper technology.
10, a kind of manufacture method of making the false proof altering prevention paper of claim 6,7,8 described employing anti-false fibers, it is characterized in that proportionally joining in the paper pulp anti-false fiber silk that contains the characteristic fluorescence powder, press art base paper explained hereafter body paper, to prevent altering agent then and grind to form particle below 10 microns respectively, be added in the coating fluid, produce by the technology of art paper.
CN 02130658 2002-09-16 2002-09-16 Anti-counterfeit fabre. anti-counterfeit anti-altering paper made from same and mfg method thereof Expired - Fee Related CN1226486C (en)

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CN102199900A (en) * 2011-04-13 2011-09-28 成都印钞有限公司 Modified resin fiber anti-counterfeit paper and making method thereof
CN102416643A (en) * 2011-10-18 2012-04-18 湖北吉象人造林制品有限公司 Anti-counterfeiting method for artificial board and artificial anti-counterfeiting board
CN103806273A (en) * 2014-02-13 2014-05-21 北京化工大学常州先进材料研究院 Method for preparing fluorescent nanofibers based on photo-grafting surface modification
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CN102199900A (en) * 2011-04-13 2011-09-28 成都印钞有限公司 Modified resin fiber anti-counterfeit paper and making method thereof
CN102199900B (en) * 2011-04-13 2013-04-10 成都印钞有限公司 Modified resin fiber anti-counterfeit paper and making method thereof
CN102416643A (en) * 2011-10-18 2012-04-18 湖北吉象人造林制品有限公司 Anti-counterfeiting method for artificial board and artificial anti-counterfeiting board
CN103806273A (en) * 2014-02-13 2014-05-21 北京化工大学常州先进材料研究院 Method for preparing fluorescent nanofibers based on photo-grafting surface modification
CN103806273B (en) * 2014-02-13 2015-12-30 北京化工大学常州先进材料研究院 A kind of method preparing fluorescent nano-fiber based on photo-grafting surface modification
CN108103609A (en) * 2017-11-16 2018-06-01 北京石油化工学院 The anti-fake composite nano fiber and preparation method for having both phase transition function of double wave length fluorescent
CN108103609B (en) * 2017-11-16 2020-06-30 北京石油化工学院 Dual-wavelength fluorescent anti-counterfeiting composite nanofiber with phase change function and preparation method thereof
CN112609257A (en) * 2020-11-11 2021-04-06 南通纺织丝绸产业技术研究院 Anti-counterfeiting lyocell fiber, preparation method and anti-counterfeiting method
CN112609257B (en) * 2020-11-11 2021-09-17 南通纺织丝绸产业技术研究院 Anti-counterfeiting lyocell fiber, preparation method and anti-counterfeiting method
CN114034529A (en) * 2021-11-11 2022-02-11 广东睿鹏材料科学有限公司 Detection pretreatment method of anti-counterfeiting material containing trace fluorescent groups

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