Abstract: A tubular net arrangement is made by placing a tubular net on a transfer tube and inserting a support tube coaxially inside the transfer tube. The support tube has a support tube diameter that is smaller than the transfer tube diameter. The tubular net is then moved off the transfer tube and past the end of the transfer tube to fold the tubular net onto the support tube in the form of multiple successive concentric layers. The transfer tube then moves relative to the support tube to expose the support tube as the layers are formed on the support tube. The inner diameter of each layer is adjacent the support tube and is equal to the support tube diameter and the outer diameter of each layer is spaced away from the support tube and is greater than the support tube diameter and at most equal to the transfer tube diameter.

Abstract: Film for wrapping food products, made of an edible or inedible material, curved onto itself along a longitudinal axis to form a cylinder in which the longitudinal side edges of the film are overlapping to a certain extent are in direct contact with each other but not otherwise connected, shirred or wrinkled in the manner of an accordion to form folds perpendicular to the axis of said cylinder, that can have an internal support in the form of a tube of a stiff material, and which can be externally coated by a separation sheet and an also shirred tubular net, and the method for manufacturing it.

Abstract: A multi-layer arrangement of a tubular net is first positioned on a transfer tube. A toothed loader is used to slide the net along the outside of the transfer tube, to an end zone thereof which is slightly conical. When the net reaches the end zone, it falls onto a support tube in an arrangement of concentric layers. In this way, the outer layers of the loaded net have a maximum diameter equal to that of the transfer tube while the inner diameter of the loaded net, which corresponds to the outer diameter of the support tube, is less than the maximum diameter of the stretched net.

Abstract: A tubular net arrangement is made by placing a tubular net on a transfer tube and inserting a support tube coaxially inside the transfer tube. The support tube has a support tube diameter that is smaller than the transfer tube diameter. The tubular net is then moved off the transfer tube and past the end of the transfer tube to fold the tubular net onto the support tube in the form of multiple successive concentric layers. The transfer tube then moves relative to the support tube to expose the support tube as the layers are formed on the support tube. The inner diameter of each layer is adjacent the support tube and is equal to the support tube diameter and the outer diameter of each layer is spaced away from the support tube and is greater than the support tube diameter and at most equal to the transfer tube diameter.

Abstract: A casing is embodied as a hollow stiff cylindrical support provided with an attachment mechanism in its coupling to the stuffing horn, on which is placed a suitably shirred tube which in turn is coated with a separation sheet and finally by a tubular net, also compressed or shirred, and which together with the inner tube extends beyond the support tube and is clamped against the tube by a clip, staple or knot such that during the stuffing operation the shirred tube and the equally shirred net are axially extended, with a simultaneous yet independent extension of the two elements favored with the aid of the intermediate separation sheet.

Abstract: Film for wrapping food products, made of an edible or inedible material, curved onto itself along a longitudinal axis to form a cylinder in which the lateral edges of the film are overlapping to a certain extent, shirred or wrinkled in the manner of an accordion to form folds perpenicular to the axis of said cylinder, that can have an internal support in the form of a tube of a stiff material, and which can be externally coated by a separation sheet and an also shirred tubular net, and the method for manufacturing it.