UV curing invisible fluorescent ink and preparation method thereof

A fluorescent ink, invisible technology, applied in ink, household utensils, applications, etc., can solve the problems of long drying time of oxidative polymerization, inability to print on non-absorbent substrates, etc., and achieve the effect of maintaining stability and improving toughness

Active Publication Date: 2014-03-26
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AI-Extracted Technical Summary

Problems solved by technology

The common drying form of general fluorescent ink is oxidative polymerization dryin...
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The invention discloses UV curing invisible fluorescent ink which is characterized by being prepared from the following raw materials by weight: 1 to 2 parts of ultraviolet fluorescence pigment, 10 to 15 parts of polyethylene glycol, 3 to 4 parts of urea, 1 to 2 parts of vinyl polysiloxane, 1 to 2 parts of polyoxyethylene stearic acid ether, 16 to 18 parts of tripropylene glycol diacrylate, 4 to 6 parts of zinc stearate, 20 to 24 parts of UV unsaturated polyester, 4 to 8 parts of a 184 photoinitiator, 1 to 2 parts of an antiager MB, 1 to 2 parts of tributyl tin trichloride, 5 to 7 parts of propenoic acid-4-hydroxybutyl ester, 12 to 14 parts of o-bromostyrene, 1 to 2 parts nonylphenol and 4 to 5 parts of an additve. The additive improves the toughness of the ink, enables the ink to be dispersed uniformly, and maintains the stability of the ink; the ink has multiple frequency converting anti-counterfeiting properties, the product can be dried instantaneously, and the ink has the characteristics of economy, energy conservation and environmental protection, and can be printed on absorptive printed materials or non-absorptive printed materials.

Application Domain


Technology Topic

PhotoinitiatorUrea +20


  • Experimental program(1)

Example Embodiment

[0009] Specific implementation plan
[0010] The present invention will be described in detail below through specific examples.
[0011] A UV-curable invisible fluorescent ink prepared from the following parts by weight (kg) of raw materials: ultraviolet fluorescent pigment 1, polyethylene glycol 10, urea 3, vinyl polysiloxane 1, polyoxyethylene stearate ether 1. Tripropylene glycol diacrylate 16, zinc stearate 4. UV unsaturated polyester 20, 184 photoinitiator 4. antioxidant MB 1. tributyltin trichloride 1. acrylic acid-4-hydroxybutyrate Ester 5, o-bromostyrene 12, nonylphenol 1, auxiliary 4;
[0012] The additive is prepared from the following parts by weight (kg) of raw materials: nano diatomaceous earth powder 0.2, nano mica powder 0.2, dipentaerythritol hexaacrylate 10, neopentyl glycol 5, p-tert-butyl benzoic acid 1, Crosslinking agent TAC2, polyisobutylene 2, silane coupling agent KH560 1, Propyl gallate 2, Coix seed oil 1; its preparation method is to mix the materials, heat to 60-70°C, stir and react for 30-40 minutes, that is Got.
[0013] The UV-curable invisible fluorescent ink of the present invention is made by the following specific steps: firstly add ultraviolet fluorescent pigments, polyethylene glycol, urea, vinyl polysiloxane, polyoxyethylene stearic acid ether, dipropylene glycol two Acrylate, zinc stearate, UV unsaturated polyester, stir and mix, heat to 80-90℃, stir for 25-35 minutes; then add the remaining ingredients except 184 photoinitiator, stir for 3-5 hours ; Finally, the temperature is lowered to 60-70°C, 184 photoinitiator is added, and the reaction is stirred for 40-50 minutes. After cooling, grinding to obtain a 20-40μm slurry is obtained.
[0014] The resulting ink is peeled off with cross-cut cowhide tape, the cross-cut spacing is 1mm, 100% adhesion; use a cotton ball soaked with alcohol, wipe 50 times with 300 g pressure, no abnormal shape; soak in salad oil (normal temperature) for 8 hours , No abnormal shape; use a cotton ball soaked in salt water, wipe 50 times with a pressure of 300 grams, no abnormal shape.


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Description & Claims & Application Information

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