Offset printing process standard

The ProzessStandardOffset [offset printing process standard] has been in place since October 2001. It defines the complete process from acquiring the data up to printing. It is defined in ISO 12647-2 and defines parameters, tolerances and measuring methods for offset printing.

Only companies that feel comfortable with and can apply international Standards are in a position to produce quality in compliance with the appropriate Standards.
 
Printing companies must not only produce according to ISO 12647-2, but they must also be able to prove that they actually do this.

The Siemens Groups will only work together with partner companies that fulfill the Siemens specifications (Siemens guidelines).

Prints for Siemens Healthcare require a screen resolution of 80 L/cm or Hybrid- or FM-Screening.

Printwedge

The Siemens_Printwedge_F39 is used to evaluate offsetprints on coated papers according to ISO 12647-2 using the appropriate measurements and also a visual assessment.

The control wedge should be located in the trim of the print, transverse to the cylinder and therefore located in only one duct adjusting screw. 

The printing company must evaluate and archive the uncut "OK sheet".

Measuring principle: Measuring fields (20/40/60/80/100 percent) allows the tone value increases of all four printing inks to be displayed. 

The gray balance can be immediately and visually evaluated using the gray fields.

Since November 2009 there is a new PrintWedge available. You can download the wedge in a 4c or 5c version. The only difference is the Siemens cool Gray patch (which is either 4c or a spotcolor). Additionally there is a new patch to measure the highlight dots.

You will find the Siemens printwedge in our download area.

Testform and Certificate

Siemens audits its suppliers regularly to ensure that they are observing and maintaining the specifications in the Production Guidelines. For this purpose, a test form will be created that all print suppliers must print. The participants must measure the printwedge on the test form and issue a measurement report with the test forms. Siemens will then make their own measurements on all of the test forms. They will also perform a visual evaluation. This will form the basis for future orders.

Those suppliers that supply good results - both from a measurement perspective and also visually - and that evaluate the measuring wedge by making the appropriate measurements will receive a certificate with a limited validation.