Currently the world over, safety jackets being used are
mainly reflective type of jackets that have a very high visibility when light
falls on them. These are used by professional who are required to work in
conditions of low visibility. These jackets however fail to deliver their
functionality when there is no light incident on them. Thus glow in the dark
jackets, which are essentially jackets with a coating of photo luminescent
pigment, assume great importance.
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As new pigments are developed for the self-illuminated
jackets, it will improve the functionality of the product and make it a more
broad-spectrum product and one for the future.
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Safety Jackets
Most of the safety jackets have a reflective strip that
reflects light in conditions of low visibility. These jackets are however of no
use in habitats where there is no incident light, for example a mine or a dark
street or railway track, as shown in Fig 1.
Fig1:
Reflective type safety jackets
To overcome this shortcoming of the reflective type of
jackets, we have developed a photo-luminescent fabric. Strips of this fabric
can be cut and stitched on jackets along with the reflective strips so that
these become visible during night under very poor visibility conditions in the
absence of an incident light as shown in Fig 2.
Fig2:
Self illuminated safety jackets
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