High Adhesion Uv Ink For Paper
UV Flexographic Paper Ink is a flexographic printing ink based on ultraviolet curing technology, specially designed for paper substrates (such as packaging boxes, labels, paper bags, etc.). Its core feature is that the photopolymerization reaction is triggered by UV photoinitiator to achieve instant curing of the ink.
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Product Introduction
High adhesion: through the special resin formula design, ensure that UV ink forms a strong chemical bond on the paper surface, especially suitable for smooth, coated paper or special texture paper.
Fast curing: using UV-LED or mercury lamp curing technology, it can achieve drying in seconds (such as 0.1-2 seconds), improving printing efficiency.
Environmental protection and low odor: does not contain volatile organic compounds (VOC), meets environmental protection standards, and is suitable for indoor printing environments.
Color performance: provides a variety of color options such as CMYK, white and transparent coating, supporting high-precision image and text printing.
| Feature | Traditional Screen Printing | UV Curing Screen Printing |
|---|---|---|
| Curing Time | Hours to days | 1-5 seconds |
| Environmental Impact | High VOC emissions | Zero VOC, eco-friendly |
| Adhesion | Requires primers or surface treatment | Direct adhesion on low-energy surfaces |
| Production Efficiency | Multi-step drying process | Single-step, inline curing |
| Longevity | Fades or cracks over time | Resists weathering for 5+ years |
FAQ:
1.What is the difference in curing speed between UV-LED curing and traditional mercury lamp?
LED advantages:
The wavelength is concentrated at 365-405nm, and the curing speed can reach 300m/min (500W/cm power) when matched with specific photoinitiators (such as Lucirin TPO-L).
The surface temperature is ≤50℃, which is suitable for heat-sensitive materials (such as PE coated paper). Traditional mercury lamps require high temperature curing above 150℃.
Limitations of mercury lamps:
The curing speed is 100-200m/min, and preheating is required for 10 minutes, and the lamp life is only 1000 hours (LED lamp life is 20,000 hours).
Case comparison: Printing 1000㎡ food boxes, LED-UV process takes 3.3 minutes, mercury lamp process takes 5 minutes, and electricity costs are saved by $1.2/thousand square meters.
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