What is a blueprint?

Blue calico is a handicraft, also known as indigo calico, commonly known as medicinal patch and watering cloth. It is a traditional printing and dyeing product in China with a history of 1300 years. At first, blue grass was used as dye for printing and dyeing. Blue calico is baked with synthetic mortar made of lime and soybean powder, and made of cotton, hand-woven, carved and scraped.

Blue calico is a handicraft, also known as indigo calico, commonly known as medicinal patch and watering cloth. It is a traditional printing and dyeing product in China with a history of 1300 years. At first, blue grass was used as dye for printing and dyeing. Blue calico is baked with synthetic mortar made of lime and soybean powder, and made of cotton, hand-woven, carved and scraped.