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Whiter than white
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16/10/2006
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Since Apple introduced the iPod, ‘good old white’ is no longer good enough. Responding to the need for not only better properties, but also different whites, BASF’s design factory has created new shades of white specifically for manufacturers of electronic devices.
Intriguingly, more colour pigments need to be added to create white than are needed for darker colours. And as more pigment is added, the plastic’s mechanical properties are degraded. “We have considerably improved this aspect with our EverWhite colour shades,” explains Norbert Mosbach, head of the technical dye laboratory of BASF’s design factory.
Whereas the familiar RAL colour chart contains only five shades of white, the design factory is offering 12 shades of white, ranging from ‘extremely white’ to ‘slightly tinted’. The new colour shades are highly colour stable and prevent the yellowing encountered with parts made of plastics dyed white.
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Author
Graham Pitcher
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