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Slider with alias additive plast Plast opticalbrightner not found.
Description
Plastics are susceptible to ageing and yellowing over time. Also, recycled plastics tend to yellow after repeated heat histories and shear mechanisms. Optical brighteners help to hide the ageing / yellowing characteristics of plastics as they increase the brightness and gloss of plastics. They act on fluorescence mechanism i.e. they absorb light in the UV range of 340 – 370 nm and re-emit that light in blue wavelengths of the visible spectrum i.e. 420 – 470 nm.
Optical brighteners are typically used in recycled PE and PP applications as well as virgin films and fibres to improve colour, gloss and brightness and to hide yellowness.
Advantages
- Optical brighteners are typically used in recycled PE and PP applications
- virgin films and fibres to improve colour, gloss and brightness
- Optical brighteners help to hide the ageing / yellowing characteristics of plastics
