A security fluorescent inkjet ink for red light excitation

CN122127830APending Publication Date: 2026-06-02CHINA BANKNOTE INK +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA BANKNOTE INK
Filing Date
2026-02-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

[0003]因此，本发明要解决的技术问题在于克服现有防伪墨水的防伪性和隐蔽性不足的缺陷，从而提供一种用于红光激发的防伪荧光喷墨墨水

Benefits of technology

本发明提供一种用于红光激发的防伪荧光喷墨墨水，其中，所述用于红光激发的防伪荧光喷墨墨水固化后，在570-580nm的光照射下，经600-620nm长通波滤光片过滤后，能够观察到荧光；所述用于红光激发的防伪荧光喷墨墨水包括荧光材料2-((1E,3E)-5-((Z)-1-(6-(庚氨基)-6-氧代己基)-3,3-二甲基吲哚啉-2-亚基)戊-1,3-二烯-1-基)-1,3,3-三甲基-3H-吲哚-1-鎓，具有如下所示结构式：

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Abstract

This invention belongs to the field of anti-counterfeiting ink technology, specifically relating to an anti-counterfeiting fluorescent inkjet ink for red light excitation. After curing, the anti-counterfeiting fluorescent inkjet ink for red light excitation exhibits fluorescence when irradiated with 570-580nm light and filtered through a 600-620nm long-pass filter. The ink comprises the fluorescent material 2-((1E,3E)-5-((Z)-1-(6-(heptamino)-6-oxohexyl)-3,3-dimethylindoline-2-ylidene)pent-1,3-dien-1-yl)-1,3,3-trimethyl-3H-indoline-1-onium. The anti-counterfeiting fluorescent inkjet ink of this invention, when filtered through a filter of a specific wavelength under specific light conditions, allows fluorescence to be observed. This dual limitation not only significantly enhances the concealment of anti-counterfeiting information but also strengthens its resistance to cracking, resulting in higher anti-counterfeiting and concealment capabilities.
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