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(11) | EP 1 010 792 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Elastic tubular knitted fabric and process for obtaining the same |
(57) The process comprises making an elastic film, made of a thermoplastic polymer, a
pigmentary dispersion and a lubricating agent, obtained in an extrusion process with
certain dimensional ratios between the opening for the outlet of material, in the
extruder head, and the sheet of film; cutting and stretching the film in certain conditions
as to stretch and temperature ratio; and the resultant ribbons are knitted with a
preferred loop structure so that the tubular fabric preferably has an ultimate elongation
and an elastic limit respectively in excess of 100% and 20%. The resultant ribbons
are all knitted preferably forming a tubular loop structure which has chains of loops
(1) running parallel to the longitudinal axis (5) of the tubular fabric, and ribbons
(2) perpendicular to said axis interconnecting the chains of loops (figure 1). |