Ink transparent to infrared light, process for its preparation and use
By adding a specific ratio of black and red dyes to infrared light-transmitting ink, combined with other components, the problem of unstable ink transmittance and reflectance was solved, improving the sensitivity and accuracy of contamination detection.
CN118006162BActive Publication Date: 2026-01-02IRIDIUM OPTICS TECHNOLOGY NANTONG INC
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Patent Information
- Application Number
- CN202410282051.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2044-03-13
AI Technical Summary
Technical Problem
Existing infrared-transmitting inks are not stable enough due to their low transmittance and low reflectance of visible light, resulting in low sensitivity and accuracy in contamination detection.
Method used
By adding a specific proportion of black and red dyes to the infrared light-transmitting ink, and combining it with components such as resin, curing agent, and waterborne polyurethane dispersion, the stability of the ink's transmittance and reflectance in the visible light region is controlled, ensuring high transmittance in the infrared light region.
Benefits of technology
This invention achieves stable low transmittance and reflectance of infrared-transmitting ink in the visible light region, thereby improving the sensitivity and accuracy of contamination detection.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses infrared light penetrating ink and a preparation method and application thereof. According to weight percentage, the infrared light penetrating ink comprises the following components: 60-70% resin, 0.63-0.72% black dye, 0.12-0.21% red dye, 0.2-0.7% water-based polyurethane dispersion, 1.0-2.0% curing agent and 28-40% water. Preferably, the black dye is carbon black; and the red dye is 1,2-dihydroxy-9,10-anthraquinone. The preparation method comprises the step of mixing the various raw materials. The infrared light penetrating ink can be used for pollution detection of glass or silicon wafer. Through control of the mass percentage of the black dye and the red dye, the application can realize stable low reflectivity and light transmittance in the visible light region, high light transmittance in the infrared light region and strong adhesion to glass and other substrates.
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