Control method of a laundry machine

A control method of a washing machine comprising a rotatable drum, the control method comprising:naccelerating the drum to a preset speed such that laundry held in the drum is held in contact with an inner wall of the drum by a centrifugal force;decelerating the drum such that the laundry is temporarily separated from the inner wall of the drum, but not dropped from the inner wall of the drum, wherein wash water is supplied to the drum while the laundry is held in contact with the inner wall of the drum by the centrifugal force, or while the laundry is temporarily separated from the inner wall of the drum;accelerating the drum back to the preset speed so that the laundry is again held in contact with the inner wall of the drum; andrepeating the accelerating, decelerating and accelerating steps a predetermined number of times.

A washing machine, comprising:na cabinet;a drum rotatably provided in the cabinet;a water supply device to supply wash water to the drum from an external water supply source;a circulation device to re-supply to the drum wash water discharged from the drum; anda controller to control a driving of the drum, wherein the controller controls rotation of the drum based on two or more drum driving motions, wherein at least one of the two or more drum driving motions comprises:naccelerating the drum to a preset speed such that laundry held in the drum is held in contact with an inner wall of the drum by a centrifugal force, then decelerating the drum such that the laundry held in the drum is temporarily separated from the inner wall of the drum, but not dropped from the inner wall of the drum, then accelerating the drum back to the preset speed such that laundry is again held in contact with the inner wall of the drum, and repeating the accelerating, decelerating and accelerating of the drum for a predetermined number of times so as to repeatedly hold the laundry against the inner wall of the drum, temporarily release, but not drop. the laundry from the inner wall of the drum, and hold the laundry against the inner wall of the drum again so as to perform a squeezing motion on the laundry,wherein the controller supplies wash water to the drum while the laundry is held in contact with the inner wall of the drum or while the laundry is temporarily separated from the inner wall of the drum.