August 21, 2016

#427. “NINJA INK” which a colorful design appears when a flash bulb hits a snow-white dress in Paris Collection.

         The world was astonished at “NINJA INK” as which only the person who light up the light can see the design because it usually hid!

“NINJA INK” is the world’s first ink that only the person who lighted up the light can see a design. When light enters the mirror at the slant, it seems usually to bounce to the opposite direction, but the light that hit this ink is an epoch-making technique to return to the direction where it came to.