Spinning Process in the Manufacturing of Jute
In the last step of the manufacturing process of the jute plant, the material is taken on bobbins to spinning frames of the throstle type, and spun into yarn of various sizes, with a hard twist for warps and a softer twist for wefts. The warp yarns on bobbins are then passed on to the spooling and dressing machines, or are reeled in hanks and bundles for the purpose of being bleached or dyed in various colors for stripes in the fabric to be woven. The weft yarns are taken to the cop winding machines.
John H. Finley ed. Nelson's Perpetual Loose-Leaf Encyclopaedia (vol. 7) (New York, NY: Thomas Nelson and Sons, 1917) 47