A kind of fluorescent printing oil and preparation method thereof

A technology of printing oil and fluorescence, applied in the field of anti-counterfeiting, can solve the problem of being easily imitated by others, and achieve the effect of obvious anti-counterfeiting effect, high transparency and high production efficiency.

Active Publication Date: 2020-08-18
HUIZHOU SURE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing colorless and transparent anti-counterfeiting inks on the market mainly use the blue-emitting coumarin series, which are easy to be imitated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The fluorescent printing oil of the present invention comprises the following components by weight percentage: self-made fluorescent powder (0.5%), propylene glycol monomethyl ether (25%), propylene glycol monoethyl ether (38%) and 2-methyl-2,4-pentanedi Alcohol (18.5%) and ketone-formaldehyde resin (18%); Wherein, self-made fluorescent powder is made by following method: rare earth tertium salt, alkali and ligand 2,6-dihydroxybenzoic acid are mixed in water, ethanol or water and ethanol prepared by reaction in the mixture.

[0013] The preparation method of the fluorescent printing oil of the present invention is as follows: accurately weigh 25 parts of propylene glycol monomethyl ether, 38 parts of propylene glycol monoethyl ether, 18.5 parts of 2-methyl-2,4-pentanediol and 18 parts of ketone-aldehyde resin, stir at room temperature until the resin is completely Dissolve, weigh 0.5 parts of self-made fluorescent powder and add to the mixed solution, stir at room tempe...

Embodiment 2

[0015] The fluorescent printing oil of the present invention comprises the following components by weight percentage: self-made fluorescent powder (1.5%), propylene glycol monomethyl ether (22%), propylene glycol monoethyl ether (36%) and 2-methyl-2,4-pentanedi Alcohol (16.5%) and ketone-formaldehyde resin (24%); Wherein, self-made fluorescent powder is made by following method: rare earth tertium salt, alkali and ligand 2,6-dihydroxybenzoic acid are mixed in water, ethanol or water and ethanol prepared by reaction in the mixture.

[0016] The preparation method is the same as in Example 1.

[0017] The fluorescent ink of the present invention mainly has the following characteristics:

[0018] (1) Colorless and transparent: it can be used on plastic film packaging. The planned main market is to leave invisible anti-counterfeiting marks on the inconspicuous parts of the plastic film outer packaging when the main market is to sell relatively expensive products such as cigarette...

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PUM

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Abstract

The invention relates to a fluorescent stamp ink, which comprises the following components in percentage by weight: 0.15-1.9% of homemade fluorescent powder, 70-83% of solvent, and 16-29% of keto-aldehyde resin, the homemade fluorescent powder is prepared by adopting the method comprising the following steps: reacting rare earth bismuth salt, alkaline and ligand 2,6-dihydroxy-benzoic acid in water, ethanol or mixture of water and ethanol. The invention further discloses a method of preparing the fluorescent stamp ink. The stamp ink adopts homemade fluorescent powder with good solubility and high fluorescence intensity, and is environment-friendly in formula design and free from benzene and ketone solvents, the preparation technology is simple, efficient and environment-friendly, convenient to use and simple to operate, the stamp on a transparent plastic thin film outer package is colorless and transparent under sunshine thus being strong in concealing property; the fluorescent stamp ink is brightly green fluorescent under ultraviolet light, thus being high in differentiability and obvious in anti-counterfeiting effect; and counterfeiting difficult is increased through the homemade fluorescent powder.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting technology, in particular to a fluorescent printing oil and a preparation method thereof. Background technique [0002] With the development of society, commodities are extremely abundant. All kinds of high-end products such as tobacco, alcohol and cosmetics can also be bought in ordinary supermarkets or small shops such as Shiduo. When merchants sell such products, they usually Use a ballpoint pen to sign on the outer packaging to prevent consumers from causing disputes after buying back the product. This method is simple, but it is easy to damage the outer packaging of the product and affect the appearance, especially for gift-giving products, it is quite rude to have such a mark. If there is a transparent anti-counterfeiting ink for plastic films, this problem can be solved. [0003] So far, the anti-counterfeiting inks reported in the literature are mainly based on anti-counterfeiting core...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/03C09D11/103C09D11/50
CPCC09D11/03C09D11/103C09D11/50
Inventor 向华唐晖然黎佩影林木雄苏绮钿蔡绵
Owner HUIZHOU SURE SCI & TECH CO LTD
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