sanforization AmE
sanforisation BrE

Sanforization is a process of treatment used for cotton fabrics mainly and most textiles made from natural or chemical fibres, patented by Sanford Lockwood Cluett (1874-1968) in 1930.

Sanford Lockwood Cluett (1874-1968) was an American businessman and inventor known for developing Sanforization (1928), a process to pre-shrink woven fabrics, and Clupak paper used in stretchable shopping bags and wrapping paper.

GTB Holding Corp still holds the trademark licensing rights to the Sanforization process of pre-shrinking fabric, named for its inventor, Sanford L. Cluett, who developed the process for Cluett, Peabody & Co, which he joined in 1919.

By the end of the war, Jockey and Hanes remained the industry leaders in the US, but Cluett, Peabody and Company made a name for itself when it introduced a preshrinking process called "Sanforization", invented by Sanford Cluett in 1933, which came to be licensed by most major manufacturers.