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Is it better to use 365 wavelength or 395 wavelength for curing UV material UV ink

Mar 03, 2022

The led curing lamp 365/395 for led uv ink refers to the wavelength of ultraviolet light (unit is nm). Generally, the longer the wavelength, the better the penetration.

 

1. 365nm violet light (generally refers to the wavelength of 360-365NM)

Ultraviolet LEDs in the 365nm band are more expensive (for violet ultraviolet, the shorter the wavelength, the more expensive)

365nm: The visible light, but the light is relatively weak, the 365 quasi-wavelength ultraviolet lamp beads, almost no purple light can be seen in the emission color, because the imported chips do not have purple light in the emission color, and almost all kinds of authentication are currently used. It can be used in all products, such as fine inspection of jewelry, jade, jade, amber, invoices, stamps and other high-end items, flaw detection (industrial use, identification of precision scars on parts), fluid trace detection (oil traces, criminal investigation detection, etc.), because no Violet light can accurately identify subtle traces. It must be used for fluorescent agent detection. Most UV glues must also use 365nm. In addition, some fluorescent photography and fluorescent art dance effects also need to use wavelengths below 365nm. It can also be used for disinfection and sterilization, but the effect is not as good as 260-280nm.

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2. 380nm violet light (usually 380~385nm)

The effect of UV ink curing in the 380-390nm band is better, and the ultraviolet light of 380nm is basically suitable for various identification of authenticity. Scope of application: foreign currency, jade, jade, invoices, etc., just a little purple visible light, the effect is worse than 365NM!

Cured UV glue will be better than 395. In fluorescent printing applications, using 380nm is particularly cost-effective.

 

3. 395nm violet light (usually 390~405nm)

Scope of application: (UV ink curing, UV paint curing, UV resin, UV ink, UV coating, glue curing; fishing lights, indoor mosquito repellent lights; fluorescent reflection of special substances (photographing scorpions, catching scorpions, banknote inspection, etc.); UV Nail lamp, purple jewelry lamp.


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