An Eye Looking into the Invisible Ultra‐Violet
UV light provides rapid effective inactivation of micro organisms through a physical process. When bacteria,
viruses and protozoa are exposed to the germicidal wavelengths of UVlight,they are rendered in capable of reproducing and infecting.
This capability has allowed wide spread adoption of UV light as an environmentally friendly, chemical-free, and highly effective way to
disinfect and safe guard against harmful microorganisms.
UV light has demonstrate defficacy against patho genic organisms, including those responsible for cholera, polio, typhoid, hepatitis and
other bacterial, viral & parasitic diseases.
UV - A Radiation
- curing mainly photo polymerization of different monomers and polymers.
- Applied in DryingInks, Varnishes coated on different substrates like papers, boards, plastics,wood,ceramics.
- Radiation is measured in range of intensity ie watt per cm.
- Higher the intensity;Faster the curing
- Source: Medium Pressure Mercury Vapourlamp
- UV-A LEDs
- Gallium Lamps
UV - B Radiation
- Used for photo polymerization and sterilization.
- Applied in DryingInks, Varnishes coated on different substrates like papers, boards, plastics, wood, ceramics.
- Disinfection of bacteria to a extent
- Radiation is measured in range of intensity ie watt per cm.
- Higher the intensity;Faster the curing
- Source: Medium Pressure Mercury Vapourlamp
- UV - B LEDs
- Gallium Lamps
UV - C Radiation
- Used for Sterilization
- Disinfection for microorganisams
- Intensity in range of milliwatts per cm.
- Used for initiation of photo curing by activating photo initiators
- Source: Low Pressure Mercury Vapourlamp
- Xenon filled lamps
- UV - C LEDs
