Knitted cover

A method of forming a weakened line in a one-piece knitted fabric cover so that at least a portion of the fabric is made weaker than the surrounding knitted fabric, and said weaker portion comprises a portion of at least one course of the fabric, said method comprising knitting a weft knitted double jersey fabric, knitted from at least one ground yarn, on a weft knitting machine having needles arranged in two independently operable needle beds, the fabric having a front layer knitted on one needle bed and a back layer knitted on a second needle bed wherein the fabric is knitted on both needle beds in mainly double jersey construction and at a predetermined course said weaker portion is formed in at least one of the two layers by knitting a course having a weaker construction than said double jersey construction.

A knitted cover for an object wherein the cover fabric is a weft knitted double jersey fabric having a back layer with a technical back face and a front layer with a technical front face, the cover having a line of weakness knitted into the fabric wherein at least one course of the double jersey fabric is knitted from a weakened yarn, and the front and back layers of the fabric are interconnected by an interlock structure of weakened yarn formed on alternate stitches in the front and back layers.