A UV quick drying ink suitable for window series filter rods

CN118240419BActive Publication Date: 2026-06-19HUBEI CHINA TOBACCO INDUSTRY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI CHINA TOBACCO INDUSTRY CO LTD
Filing Date
2024-03-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing UV inks suffer from high viscosity, insufficient curing rate, and inadequate adhesion when printed on window filter rods, making it difficult to meet the demands of high-speed production.

Method used

By combining modified epoxy resin acrylate prepolymer, reactive diluent, photoinitiator and additives, a UV fast-drying ink suitable for window series filter rods is prepared through the preparation method of modified epoxy resin acrylate prepolymer. After printing, it is rapidly cured in a UV curing equipment.

Benefits of technology

It enables rapid curing of the window filter rod, improves production efficiency, reduces energy consumption and solvent release, and has good adhesion and wear resistance.

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Abstract

This invention provides a UV fast-drying ink suitable for window-type filter rods, comprising the following components by mass fraction: 30-50% modified epoxy resin acrylate prepolymer, 25-50% reactive diluent, 8-15% photoinitiator, and 5-12% additives; the raw materials for preparing the modified epoxy resin acrylate prepolymer include 1,5-heptadien-3,4-diol, dodecenylsuccinic anhydride, bisphenol A epoxy resin, and acrylic acid. After printing this ink onto the transparent film of the window filter rod, it undergoes UV curing and exhibits excellent adhesion, achieving rapid curing without residue. The UV ink of this invention cures in less than 0.1 seconds under an LED-UV curing system, which, compared to traditional heat curing methods, improves production efficiency, saves energy consumption, and reduces solvent release and pollution.
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