offset_printing_basics

Page 4

Print Media Academy

• • • • • • • • • • • • • • • • 4 • • • • • • • • • • • • • • • • •

Printing process: Sheet-fed offset printing Conventional offset printing Inking unit

2nd phase:

1st phase:

Phases of the inking-up process • 1. The dampening solution wets the nonprinting elements on the printing form, but is repelled at the printing areas

Plate cylinder

• 2. Rollers transfer printing ink from an ink fountain to the printing form • Dampened non-image areas reject printing ink, while non-dampened image areas accept the printing ink

Dampening system Printing material, e. g. paper Blanket cylinder Impression cylinder Blanket

© Heidelberger Druckmaschinen AG • Name of author • Date • File name


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.