Insect dye is made of Rheum emodi i.e well accepted by the name of Himalayan rhubarb. This plant shares core medicinal values in the Indian Ayurveda, it acquires anti-inflammatory and anti–bacterial properties. It exists in an elevation of 4000 meters in the sub alpine and alpine Himalayas.
Rheum emodi or Himalayan rhubarb is a conventional natural dye used for textile. It makes bright yellow and brown colour and obtains an odoriferous property.