US 11,993,873 B2
Reversible textile transformation
Skylar J.E. Tibbits, Boston, MA (US); Jared Smith Laucks, Somerville, MA (US); Schendy G. Kernizan, Milton, MA (US); Lavender Rose Tessmer, Cambridge, MA (US); Carmel Marie Dunlap, Somerville, MA (US); and Gihan S. Amarasiriwardena, Somerville, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US); and Ministry of Supply Inc., Boston, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US); and Ministry of Supply Inc., Boston, MA (US)
Filed on Sep. 9, 2020, as Appl. No. 17/016,149.
Claims priority of provisional application 62/897,955, filed on Sep. 9, 2019.
Prior Publication US 2021/0071326 A1, Mar. 11, 2021
Int. Cl. D04B 1/16 (2006.01); D04B 1/22 (2006.01)
CPC D04B 1/16 (2013.01) [D04B 1/22 (2013.01); D10B 2401/04 (2013.01); D10B 2403/0114 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A knit fabric comprising:
a first and second yarn knit together;
wherein at least one of the first and second yarns comprises a plurality of fibers that are composites of first and second polymers arranged side-by-side in cross-section;
wherein the first polymer comprises a black pigment;
wherein the first and second polymers are polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE), or polyamide (PA); and
wherein the knit fabric curls from 34° to 297° upon exposure to infrared radiation that causes a temperature change from −5° C. to 30° C.