Abstract: The printing machine comprising at least one protective replaceable self-adhesive film (1) at least for the principal surfaces most affected by splashes of ink and/or varnish and by the normal accumulation of dirt.

Abstract: An underblanket of the blanket of a blanket cylinder of a printing press, particularly of the offset type, consists of a multilayer structure comprising a first layer comprising at least one polyurethane-based material, and at least a second layer comprising at least one polyurethane-based material, which is different from the one forming said first layer, and directly joined with said first layer by exploiting the intrinsic chemical/physical compatibility.

Abstract: The printing machine comprising at least one protective replaceable self-adhesive film (1) at least for the principal surfaces most affected by splashes of ink and/or varnish and by the normal accumulation of dirt.

Abstract: An underblanket of the blanket of a blanket cylinder of a printing press, particularly of the offset type, consists of a multilayer structure comprising a first layer comprising at least one polyurethane-based material, and at least a second layer comprising at least one polyurethane-based material, which is different from the one forming said first layer, and directly joined with said first layer by exploiting the intrinsic chemical/physical compatibility.

Abstract: The coating for a printing machine blanket cylinder, comprises a multilayer structure comprising a printing blanket layer of the type suitable for the type of printing machine and an underlying elastomer layer having such physical/chemical characteristics that the body of the elastomer layer has self-levelling capacities and such thickness that combined with the thickness of the printing blanket layer it allows to maintain the desired overall thickness for the multilayer structure, a first face of the elastomer layer being integrally joined with the printing blanket layer, and a second face of the elastomer layer having a direct adhesion capacity and without requiring the interposition of additional adhesive products with the cylinder capable of adhering both in static and dynamic conditions at least sufficient to guarantee the maintenance of a perfect adhesion against the cylinder on one side and an easy removal from the same on the other.

Abstract: A self-levelling under-packing for printing presses, in particular offset presses, includes at least one polyester-based layer and at least one polyurethane elastomer layer joined inseparably together. The polyester-based layer may be between 50 ?m and 350 ?m and the polyurethane elastomer layer may be between 20 ?m and 1000 ?m. The polyester-based layer may be adhesive-coated on one side, in which case the thickness, including the adhesive, may be between 40 and 100 ?m, with the adhesive thickness not exceeding about 5 ?m.

Abstract: A self-levelling under-packing for printing presses, in particular offset presses, includes at least one polyester-based layer and at least one polyurethane elastomer layer joined inseparably together. The polyester-based layer may be between 50 ?m and 350 ?m and the polyurethane elastomer layer may be between 20 ?m and 1000 ?m. The polyester-based layer may be adhesive-coated on one side, in which case the thickness, including the adhesive, may be between 40 and 100 ?m, with the adhesive thickness not exceeding about 5 ?m.

Abstract: Sheets of rubber-coated fabric are mounted on the cylinders of offset printing presses. An under-packing formed from the combination of an optional flexible supporting sheet and a plurality of flexible packing sheets is interposed between the cylinder surface and the rubber-coated fabric to obtain a predetermined total thickness which varies for different types of printing presses. The thickness of the under-packing is equal to a predetermined maximum thickness. The thickness of the sheets of the under-packing is chosen such that by removing one or more packing sheets from the under-packing, the desired thickness for any specific case can be approximated. A face of each packing sheet which faces inwards, with the exception of the face of the innermost sheet or the supporting sheet if the supporting sheet is the innermost sheet, is treated with an adhesive which, while maintaining the sheets united, enables them to be separated from each other.

Abstract: Sheets of rubber-coated fabric are mounted on the cylinders of offset printing presses. An under-packing formed from the combination of a flexible supporting sheet (12), which may however be dispensed with, and a multiplicity of flexible graded sheets (14) has to be interposed between the cylinder surface and the rubber-coated fabric to obtain a predetermined total thickness which varies as the type of printing press varies. The total thickness of the universal under-packing (10) according to the invention is equal to a predetermined maximum thickness. The thickness of the sheets (12, 14) of the universal under-packing (10) is chosen such that by removing from the universal under-packing (10) one or more graded sheets (14), the thickness which has to be obtained for any specific case can be sufficiently approximated to.