A method for printing 7 or more inks on a substrate. The method can include the steps of: providing a substrate; providing 7 or more inks; and providing a print system, the print system comprising 6 or less rotating rolls. Each of the 6 or less rotating rolls can be disposed in an operative relationship to transport at least one of the 7 or more inks to a vascular network in one of 6 or less rotating rolls. The method includes contacting the substrate with the at least one of the 7 or more inks.

An inner resistive film is applied to a conductive substrate. Ductile particles are disposed substantially uniformly throughout the inner resistive film. An outer resistive film is applied to the inner resistive film.

An inner resistive film is applied to a conductive substrate. Ductile particles are disposed substantially uniformly throughout the inner resistive film. An outer resistive film is applied to the inner resistive film.

A gravure printing unit is usable for printing onto substrate according to a gravure printing method. The gravure printing unit has a forme cylinder, which comprises, on its circumference, an image-forming pattern of recesses, and has an inking unit for inking the pattern of recesses provided on the forme cylinder. The inking unit comprises a first inking unit cylinder, which comprises recesses in a region of its outer cylindrical surface that correspond to the recesses on the forme cylinder, and which form a nip point downstream with a second inking unit cylinder, which comprises, on its circumference, ink-transferring elevations or raised areas. The recesses are formed on the outer cylindrical surface of an ink transfer forme sheath. The first inking unit comprises a cylinder body which is or which can be mounted rotatably in the inking unit and on which a circumferentially closed ink transfer forme sheath, that carries the recesses of the first inking unit cylinder on its outwardly facing surface, is or can be detachably arranged. A printing press has such a gravure inking unit. A setting up method, an ink transfer forme sheath, and a method for producing the same are also disclosed.

According to some examples a substance displacement apparatus may comprise a gas ejection aperture and a deflector arm. The gas ejection aperture may be to direct gas towards a roller having a surface on which a substance is disposed. The deflector arm may be moveable between a first position in which gas is directed away from a target area on the surface of the roller, and a second position in which gas is directed towards the target area on the surface of the roller, thereby to displace at least some of the substance from the surface of the roller within the target area. A method and a print apparatus are also disclosed.

According to some examples a substance displacement apparatus may comprise a gas ejection aperture and a deflector arm. The gas ejection aperture may be to direct gas towards a roller having a surface on which a substance is disposed. The deflector arm may be moveable between a first position in which gas is directed away from a target area on the surface of the roller, and a second position in which gas is directed towards the target area on the surface of the roller, thereby to displace at least some of the substance from the surface of the roller within the target area. A method and a print apparatus are also disclosed.

A printing system is provided. The printing system (300) includes a printing roll (310) having a rigid printing pattern (312) on a surface thereof configured to receive an ink material (330); and an inking roll (320) positioned adjacent to the printing roll. The inking roll includes an elastically deformable surface and a number of cells (324) disposed on the elastically deformable surface. A method of printing is also provided. The method includes (a) inking at least a portion of a rigid printing pattern (312) on a surface of a printing roll (310) by contacting the rigid printing pattern with an inking roll (320); and (b) contacting the rigid printing pattern with a substrate (350), transferring the ink material from the rigid printing pattern to a surface of the substrate. Printing systems and methods can achieve higher printing feature resolutions than typically achievable via flexographic printing.

A printing system is provided. The printing system (300) includes a printing roll (310) having a rigid printing pattern (312) on a surface thereof configured to receive an ink material (330); and an inking roll (320) positioned adjacent to the printing roll. The inking roll includes an elastically deformable surface and a number of cells (324) disposed on the elastically deformable surface. A method of printing is also provided. The method includes (a) inking at least a portion of a rigid printing pattern (312) on a surface of a printing roll (310) by contacting the rigid printing pattern with an inking roll (320); and (b) contacting the rigid printing pattern with a substrate (350), transferring the ink material from the rigid printing pattern to a surface of the substrate. Printing systems and methods can achieve higher printing feature resolutions than typically achievable via flexographic printing.

In a first aspect, the invention relates to a roller core (2) with a tubular supporting wall (4) which extends conically widening (19). The roller core is adapted to receive an interchangeable roller sleeve (3) that can be stretched around it under air pressure. In particular, the roller core comprises an internal air distribution chamber (17) which is limited annularly by an internal surface of the supporting wall, and which is limited via an internal wall portion (27, 27′) to a smaller partial volume of the internal roller volume. In further aspects, the invention relates to an applicator roller (1), a method for mounting and dismounting roller sleeves, and a method for manufacturing roller cores.

In a first aspect, the invention relates to a roller core (2) with a tubular supporting wall (4) which extends conically widening (19). The roller core is adapted to receive an interchangeable roller sleeve (3) that can be stretched around it under air pressure. In particular, the roller core comprises an internal air distribution chamber (17) which is limited annularly by an internal surface of the supporting wall, and which is limited via an internal wall portion (27, 27′) to a smaller partial volume of the internal roller volume. In further aspects, the invention relates to an applicator roller (1), a method for mounting and dismounting roller sleeves, and a method for manufacturing roller cores.