A cof-modified blue dye, a lens coating, a lens, and a preparation method and application thereof
By cross-linking COF-modified blue dye with resin via covalent bonds, the stability and abrasion resistance issues of blue light blocking lens coatings have been resolved, achieving long-lasting blue light blocking effect and high light transmittance, making it suitable for the industrial production of blue light blocking glasses.
CN121293783BActive Publication Date: 2026-06-16JIANGSU XINDA FINE CHEM TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU XINDA FINE CHEM TECH CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-06-16
AI Technical Summary
⚠Technical Problem
The anthraquinone dyes used in existing blue light blocking lens coatings have poor stability and are easily degraded, resulting in insufficient abrasion resistance and thus short-lasting blue light blocking effects.
⚗Method used
COF-modified blue dyes are used to improve the stability and dispersibility of the dyes through covalent organic framework modification, and combined with the interfacial polymerization of stabilizers and resins, a lens coating with strong abrasion resistance is formed.
🎯Benefits of technology
It improves the stability of anthraquinone dyes and the wear resistance of coatings, provides long-lasting blue light protection, has high lens transmittance, and ensures clear and undistorted vision, making it suitable for industrial production.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a COF modified blue dye, a lens coating, a lens and a preparation method and application thereof, and belongs to the technical field of resin lenses. The preparation method of the COF modified blue dye comprises the following steps: step one, preparation of COF powder; and step two, preparation method of the COF modified blue dye: 1 part by weight of the COF powder is dispersed in 5-10 parts by weight of a 5-8 wt% HCl aqueous solution to obtain a COF dispersion liquid; 1-3 parts by weight of a blue dye is dissolved in 10-30 parts by weight of DMSO, and a blue dye dispersion liquid is obtained after uniform mixing; the COF dispersion liquid and the blue dye dispersion liquid are uniformly mixed, and then a polydimethylsiloxane stabilizer is added; and after freeze-drying and crushing, the COF modified blue dye is obtained. The lens coating obtained by the application has the advantages of uniform dispersion of the blue dye, excellent reflection of blue light, clear vision without distortion, no problems of spots and flow marks, high yield and suitability for industrial mass production.
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