printing technology sheetfed offset (1)
DESCRIPTION
Offset printing has the largest range of printing products, from visiting cards to newspapers, magazines, catalogues or illustrated books. We distinguish between sheet offset printing and web offset printing.TRANSCRIPT
| [Presentation title] | [Client Name] | [Date]1
Printing technologySheetfed offset (1)
Technical SupportSappi Fine paper Europe
| [Presentation title] | [Client Name] | [Date]2
Printing technology Sheetfed offset
Sheet offset printing (l)
| [Presentation title] | [Client Name] | [Date]3
Offset printing
Characteristics of the offset printing:
Indirect printing process Viscous colours Economical printing form
Offset printing has the largest range of printing products, from visiting cards to newspapers, magazines, catalogues or illustrated books.
We distinguish between sheet offset printing and web offset printing.
| [Presentation title] | [Client Name] | [Date]4
Offset printing
Sheet offset printing:
Sizes from DIN A4 to 151 x 205cm
1 - 12 printing products
max. 18,000 sheets / h
One or two-sided printing
Basis weight from 70 - 400 g/m² usual
| [Presentation title] | [Client Name] | [Date]5
Offset printing
2. Ink
2. Ink
1. Water
1. Water
IMAGE NON- IMAGE
Offset Lithographic Process
Process of inking printing plate:
1. Dampening of plate
2. Inking of plate
Die Druckplatte muss vor dem Einfärben gefeuchtet werden !
| [Presentation title] | [Client Name] | [Date]6
Diagram of a sheet offset press
Offset printing
Inking rollers
Plate cylinder
Blanket cylinder
Impression cylinder
Dampening rollers
Paper
The single process steps :1. Moistening and application of colour2. Transfer of colour: printing plate to rubber blanket3. Transfer of colour: rubber blanket to paper
| [Presentation title] | [Client Name] | [Date]7
Offset printing
1
2
3
1 Plate cylinder
2 Blanket cylinder
3 Impression cylinder with a printed sheet
| [Presentation title] | [Client Name] | [Date]8
Offset printing
Diagram of the successive design
Diagram vic of the 5-cylinder-design
| [Presentation title] | [Client Name] | [Date]9
Offset printing
Heidelberg Speedmaster SM 102-12-P Six over Six
Diagram of the successive design
| [Presentation title] | [Client Name] | [Date]10
Offset printing
Double sheet detectors help avoid jams by measuring sheet thickness. They automatically lower onto each sheet and stop the paper supply if doubles are detected.
Double sheet detector
| [Presentation title] | [Client Name] | [Date]11
Offset printing
The plates must all be in accurate register so that the image of each separate colour will be in exactly the same position on the sheet. Every plate has register holes to locate it precisely and consistently on both the machines where it is first made and then on the printing press. This ensures accurate register on the press.
Automatic plate mounting
| [Presentation title] | [Client Name] | [Date]12