Method of operating a flexographic printing press, flexographic printing press, system and sleeve
US11865830B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2021 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Oct 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F33/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of operating flexographic printing presses having an impression cylinder, printing cylinder carrying a sleeve with a flexographic printing forme or cylinder, uses a sensor adjusting print register of the printing forme or cylinder relative to a further printing forme or cylinder and/or adjusts color density and/or implements color inspection. An image of the sleeve surface with printing forme is recorded by a camera and processed before printing, locating a register mark and/or a color measurement field in terms of x-y positions. A sensor automatically moves for recording the register mark to the y-position of the register mark before adjusting to record the register mark and/or a sensor moves for recording the color measurement field to the y-position of the color measurement field before adjusting to record the color measurement field. Cost-efficient, high-quality industrial printing and further automation is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.