A method produces a flexible shaped strip (18), made of plastic, for
fixing cushion cover (12) to a cushion component (10). The cushion
component is formed of a foam material and includes a longitudinal
channel (20) for insertion of the shaped strip (18). The shaped strip
has, at least partly, a slip preventer to increase the tear resistance
form the cushion component (10). The anti-slip component or slip
preventer is made of a plastic softer than that used for the shaped strip
(18), and is, at least partly, arranged around the outer surface of the
shaped strip.