MECHANICAL REVERSIBLE TEAR-OFF CLOSING DEVICE OF THE MALE-FEMALE TYPE, MULTI-LAYER FEMALE MATERIAL TO BE USED IN A MECHANICAL REVERSIBLE TEAR-OFF CLOSING DEVICE AND METHOD TO PRODUCE SAID MULTI-LAYER FEMALE MATERIAL
Reversible tear-off closing/opening device comprising a male part suitable to be coupled to a respective female part, said male part comprising a plurality of appendices (14) with attaching heads (14B), said female part comprising a support layer (15) and a fibrous structure (16) provided on said support layer (15) for receiving said attaching heads (14B), characterized in thatsaid fibrous structure (16) comprises - a first fibrous layer (18) provided above said support layer (15), provided with first fibers, said first layer (18) being provided with a first value of average titre of the fibers, the spaces between said first fibers defining spaces for receiving said attaching heads (14B) of the male part of the device, - a second fibrous layer (19) provided above said first fibrous layer (18), provided with second fibers, having a second value of average titre of fibers that is lower than said first value of average titre, so that the spaces between said second fibers are not dimensionally suitable to receive said attaching heads (14B), so that, when coupling said male part to said female part, said attaching heads (14B) are forced to cross said second fibrous layer (19) that is thus reversibly deformed, allowing said attaching heads (14B) to enter said first fibrous layer (18) and to be received in said receiving spaces when said attaching heads (14B) are housed in said first layer (18), said second fibrous layer (19) returns to a substantially not-deformed status and prevents said attaching heads (14B) from exiting from said housing seats.La présente invention concerne un dispositif de fermeture/ouverture détachable réversible comprenant une partie mâle adaptée pour être couplée à une partie femelle respective, ladite partie mâle comprenant une pluralité dappendices (14) avec des têtes de fixation (14B), ladite partie femelle comprenant une couche de support (15) et une structure fibreuse (16) disposée sur ladite couche de support (15) pour recevoir lesdites têtes
