The Kyo No Oto Inks from Japan are water-based fountain pen inks which are crafted into perfection. These inks are made using traditional Japanese dying techniques that date back to the Heian Era, over a 1,000 years ago. These beautiful inks give every user a pleasurable writing experience.
Imairo. In the sense of "the color that is popular now", it refers to the red dyed with safflower that has been done during the Heian period. You can see how it was liked by the dynasty women of that time.