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A Japanese company has developed
a hose that changes colour according to the temperature
of fluid inside it. The ink can be mixed to display
any hue from white to black and can be made to
change colour at any temperature in a range from
–10°C to 60°C. The hoses make for
easy monitoring of industrial processes and allow
operators to prevent damage to a hose by running
it outside its recommended temperature range.
In addition, the color-change allows operators
to avoid prolonged exposure of the hose to temperatures
outside its recommended temperature range, preventing
damage to the hose. For instance, a hose can be
purple at temperatures up to 40°C and change
to red above 60°C. The hose has a coil stiffener
that uses a fiber containing a thermo sensitive
material, jointly developed by Kuraray and The
Pilot Ink Company.
The technology, developed by Japan’s Kuraray
Plastics is compatible with a broad range of hose
materials, including PVC, urethane and polypropylene.
This colour-change hose would cost about 40 %
more than standard hoses.
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