Sakiori is a traditional Japanese technique of rag weaving. In Japan, rag weaving is known as Sakiori and has been used to weave traditional kimono.
The rag strips are cut quite finely and woven into a tweed-like fabric.
Sakiori in Nishinomiya
Gramma Ashiwa tears vintage cotton cloth into strips and weaves them into beautiful sakiori
Sakiori and Sashiko
Sakiori is woven from strips of old fabric and is commonly used for work clothing.
Saki means rag and oru means to weave. This site describes the warp as being a fairly
heavy weight yarn. The cloth strips are cut in a zig-zag fashion, about 1/2 inch wide,
starting from the selvage edge, to within 1/2″ of the next selvage, creating a long,
narrow strip. The strip is rolled and used as weft.