Wool pyramids form origami-inspired Bloom blanket
Brazilian designer Bianca Cheng Costanzo has created a woollen blanket from 180 triangles hand-sewn into tessellated pyramids (+ slideshow).
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_1-e1427474768545.jpg)
The triangles for each Bloom blanket are cut using computer numerically controlled (CNC) fabric routers to Costanzo's digital design.
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_5.jpg)
The pieces are sewn together by a team of seamstresses, who spend five hours stitching the triangles along their edges into tetrahedrons and then combining the 3D shapes into a larger sheet.
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_0-e1427474805245.jpg)
"Bloom blanket is a design project rooted in the exploration of relationships between memory, art and maths," said the designer. "Geometrist Ron Resch's research into tessellations in the 1960s influenced me to craft a blanket that was not only visually intriguing, but also incredibly warm and soft to the touch, enveloping you with its continuous geometry."
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_2.jpg)
Available in grey or white, the textile is composed of a 20 per cent cashmere and 80 per cent wool blend.
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_3-e1427474915363.jpg)
The material is custom-woven to Costanzo's specifications at a factory in Prato, Italy – an area renowned for cashmere, a soft fibre woven from goat hair.
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_6.jpg)
"The blanket is a representation of an intricate three-dimensional origami tessellation pattern," Costanzo told Dezeen. "As a child I was drawn to geometric shapes and spent my playtime experimenting with origami, but it was only while studying at MIT that I realised how intricate the study of geometry could become."
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_10.jpg)
"I learned how to apply this way of thinking to engineering, but I didn't want to stop there," she added. "I wondered how it could be applied to design."
![Bloom blanket by Bianca Cheng Costanzo](https://static.dezeen.com/uploads/2015/03/Bloom-Blanket-Bianca-Cheng-Costanzo_dezeen_468_11.jpg)
The Bloom blanket was successfully funded on Kickstarter earlier this year and production will now begin in Poland.