Printing technology web offset printing

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| [Presentation title] | [Client Name] | [Date] 1 Printing technology Web offset printing Technical Support Sappi Fine paper Europe

description

In the web offset printing, difference is made between newspaper printing machines and commercial web offset machines.

Transcript of Printing technology web offset printing

Page 1: Printing technology web offset printing

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Printing technologyWeb offset printing

Technical SupportSappi Fine paper Europe

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Printing Technology Web offset printing

In the web offset printing, difference is made between newspaper printing machines and commercial web offset machines.

Characteristics of the web offset printing:

High printing speed up to 900 m/min

Grammages of 45 - 200 g/m² usual

High runs

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Printing technology Web offset printing

MAN LITHOMAN4/4 – Farben HSWO machine

Operator console

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Printing technology Web offset printing

Printing units

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Printing technology Web offset printing

Drying oven

Hot airInlet temperature > 200°C Web temperature approx. 120°CThe length of the oven is very important

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Printing technology Web offset printing

1 Automatic storage web changer2 Drawing-in apparatus3 Floating indent apparatus4 Rubber against rubber printing apparatus5 Continuous main shaft6 Paper catching device7 Dryer8 Cooling unit

9 Numbering apparatus10 Silicon-coating11 Perforating apparatus12 Wet coating unit13 Plough fold14 Turning bars15 Former

MAN-Roland Octoman

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Printing technology Web offset printing

Reel with join

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Printing technology Web offset printing

Reel in the autopaster

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Printing technology Web offset printing

Rotary Press: 1 Unit

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Printing technology Web offset printing

Paper web in one unit

Plate cylinder

Blanket cylinder

Plate cylinder

Blanket cylinder

Paper web

Colour absorption

Water absorption

Moisture resistance pH5

No deformation

Resistant against cracking of the colour

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Printing technology Web offset printing

Ink drum

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Printing technology Web offset printing

Hot-air dryer

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Printing technology Web offset printing

Re-moistening

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Printing technology Web offset printing

Re-moistening Chill roll assembly

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Printing technology Web offset printing

Paper web on the chill roll

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Printing technology Web offset printing

Silicone applicator

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Printing technology Web offset printing

Center cut

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Printing technology Web offset printing

Paper on the turner bars

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Printing technology Web offset printing

Paper on the turner bars

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Printing technology Web offset printing

Fold softening

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Printing technology Web offset printing

Paper on the former fold

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Printing technology Web offset printing

Cylinder folder

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Printing technology Web offset printing

Cylinder folder

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Printing technology Web offset printing

Chopper folder

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Printing technology Web offset printing

Stacker

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