Ink compositions having excellent light resistance.

They provide hues of particularly great intensity and light-fastness.

This postcard, when held to light, revealed the Russian patient.

When the light is diffuse you can see right through the fabric.

When held to the light, you are able to see through the stone.

When held to the light, you can see through the stone.

A new leuco dye produces a yellow color while demonstrating also exceptional light and thermal stability under light.

Disclosed is a novel compound which satisfies the characteristics required for optically anisotropic materials while having excellent durability to blue laser light.

Exceptional light resistance (Standard Blue Wool Scale - between *** and *****)

Exceptional light resistance (Standard Blue Wool Scale - between *** and *****)

In larger moldavites, the colour is really only prominent when held up to light.

Exceptional light resistance (Standard Blue Wool Scale - between *** and *****)

In larger moldavites, the color is really only prominent when held up to light.

Standard Test Methods for Lightfastness of Colorants Used in Artists' Materials

There is writing on the reverse which only shows through if the poster is held up to the light.