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China develops "color nanometre ink"
China has developed a color ink in which the pigment particles have a maximum diameter of only 200 nanometres. This "nano ink" is ideal for both black and color printing.
Pigment particle size is the key in producing ink for printers. The particle diameter should be less than 500 nanometers for high quality print. However, traditional Chinese ink can not reach this requirement, China Radio International reported Monday. After three years of research, Tsinghua University and the Chinese Academy of Sciences have co-developed this new ink by applying nano technology. The minimum diameter of the pigment particles is only 20 nanometers . This "nano ink" is ideal for both black and color printing. A nanometre is one billionth of a metre.
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