There is described an installation (01; 02) for recycling wiping solution of one or more intaglio printing presses (10) comprising a flocculation tank (12) for inducing flocculation of ink constituents contained in waste solution coming from the one or more intaglio printing presses (10), a processing tank (14) for pre-treating the waste solution for subsequent filtering, and a filtering unit (15), preferably a filter press unit, for filtering the waste solution coming from the processing tank (14) and producing recycled solution at an output of the filtering unit (15), which recycled solution is recycled to produce fresh wiping solution for use by the one or more intaglio printing presses (10). According to one embodiment, the installation (01) further comprises a centrifugation unit (13) for separating the waste solution coming from the flocculation tank (12) by centrifugation into precipitate and centrifuged supernatant, which centrifuged supernatant is fed to the processing tank (14). According to a second embodiment, the installation (02) further comprises a decantation unit (13a) for separating the waste solution coming from the flocculation tank (12) by decantation into precipitate and decanted supernatant, which decanted supernatant is fed to the processing tank (14), and a centrifugation unit (13b) for further separating the precipitate produced by the decantation unit (13a) by centrifugation into further precipitate and centrifuged supernatant, which centrifuged supernatant is fed to the processing tank (14). There are also described corresponding processes for recycling wiping solution.

The invention relates to a coating line (1) cleaning apparatus (20) and a method for cleaning at least a selected part of a coating line. The coating line cleaning apparatus comprising a conveyed entity having first and second mutually opposed major faces and at least one flexible cleaning element (12) having first and second mutually opposed major faces, said cleaning element being characterised in that each one of said first (15) and second (11) major faces is tacky, the first of said tacky faces of said cleaning element being releasably adhered to one of the major faces (8) of the conveyed entity (4), and the second tacky major face of said cleaning element being temporarily contactable with the selected part (14) of the coating line to bring said second tacky major face (11) of the cleaning element into temporary contact with said selected part of a coating line to cause any contaminants present on said selected part (14) of a coating line (1) to adhere to said second tacky major face (11) of said cleaning element thereby causing any contaminants to be removed from said selected part of a coating line (1).

An apparatus includes a doctor blade, an impression roller, and a housing assembly configured to be selectively securely mounted to a stationary-mounted printing machine cylinder. The housing assembly is also configured to support, in use, the doctor blade and the impression roller relative to an engraving area of the stationary-mounted printing machine cylinder once the housing assembly is selectively securely mounted to the stationary-mounted printing machine cylinder.

A cleaning fabric wound on a roll (12) is use for cleaning printing cylinders (2, 3, 4) of a printing system (1). The cleaning fabric (13) includes a liquid absorbable material configured to be soaked with a cleaning liquid containing a polar additive configured to make the cleaning liquid polar. The roll (12) of cleaning fabric (13) is included in a cleaning cassette (10) which is movable between an idle position out of contact with the printing cylinders, and an active position in which the cleaning fabric (13) included in the cassette (10) is in contact with a printing cylinder to be cleaned.

Apparatus to apply a fluid to a substrate, the apparatus includes a first roller to rotate about an axis and apply a fluid to a first side of the substrate. The first roller includes an outlet to provide gas to the substrate to guide the movement of the substrate subsequent to the application of fluid to the substrate.

A cleaning fabric wound on a roll (12) is used for cleaning printing cylinders (2, 3, 4) of a printing system (1). The cleaning fabric (13) includes a liquid absorbable material configured to be soaked with a cleaning liquid containing a polar additive configured to make the cleaning liquid polar. The roll (12) of cleaning fabric (13) is included in a cleaning cassette (10) which is movable between an idle position out of contact with the printing cylinders, and an active position in which the cleaning fabric (13) included in the cassette (10) is in contact with a printing cylinder to be cleaned.

A printing apparatus of the present disclosure is for performing printing of a viscous fluid onto a print target using a screen mask, the printing apparatus including: a moving section configured to perform at least one of moving an exchangeable member to an exchange position or loading and unloading of the exchangeable member, for at least two types of the exchangeable member that, out of a cartridge configured to house the viscous fluid, a squeegee, a screen mask, a cleaning member used to clean the screen mask, and a support member configured to fix the print target, include at least one out of the cartridge, the squeegee, and the cleaning member; and an exchange control section configured to control the moving section to perform exchange processing of exchanging the exchangeable member.

A printing apparatus of the present disclosure is for performing printing of a viscous fluid onto a print target using a screen mask, the printing apparatus including: a moving section configured to perform at least one of moving an exchangeable member to an exchange position or loading and unloading of the exchangeable member, for at least two types of the exchangeable member that, out of a cartridge configured to house the viscous fluid, a squeegee, a screen mask, a cleaning member used to clean the screen mask, and a support member configured to fix the print target, include at least one out of the cartridge, the squeegee, and the cleaning member; and an exchange control section configured to control the moving section to perform exchange processing of exchanging the exchangeable member.

A cleaning device includes a cleaning unit, a movement mechanism, and a positioning portion. The cleaning unit includes a cleaning part that has a contact surface extending along an axial direction of a conveyance roller and cleans the conveyance roller, and a cleaning housing that supports the cleaning part. The movement mechanism moves the cleaning unit between a cleaning position and a mounting and removing position. The movement mechanism allows the cleaning part to be brought into contact with the conveyance roller at the cleaning position, allows the cleaning part to be disposed below the conveyance roller in a separated manner at the mounting and removing position and allows the cleaning unit to be mounted on or removed from the apparatus body. The positioning portion restricts a relative position between the cleaning part and the conveyance roller by being brought into contact with the cleaning unit.

A printing device includes a cleaning head configured to contact a cleaning member with the screen mask to perform a cleaning process on the screen mask, a moving section connectable and disconnectable to the cleaning head to move the cleaning head between a cleaning area and a standby area, a door member configured to open and close an opening portion through which the cleaning member passes when the cleaning member is moved from the standby area to an outside of the printing device and be lockable in a closed state, and a control section configured to unlock the door member in a state where the moving section is disconnected to the cleaning head and the cleaning head is located in the standby area.