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The purpose of this website is to provide technical assistance to printing companies, press operators, paper merchants and paper manufacturers. Shown below are the printing problems we cover. When problems occur in the pressroom it is important to follow certain procedures in order to expedite the problem solving process.
1. Sampling Procedures
2. Blanket Smashes
3. Blistering
4. Contamination
5. Calendar Cuts
6. Cracking Or Tearing Back to the Fold
7. Delamination
8. Ink Lay (Mottle)
9. Misregister
10. Moisture Problems
11. Picking
12. Picking Problems
13. Slime Holes
14. Splice Breaks
15. Comments on pH and Conductivity
16. Printing Terms

 

Information
  Information
InformationAll information required by the mill should be filled in on the complaint form.  Gather and record all mill order numbers.  Identify press type, press size, printing sequence, blankets used, dampening system type and pressroom conditions.
Ink from the Can and Rollers
Ink from the Can and Rollers
Ink from the Can and Fountain:Ink samples from the can and obtain fountain will help determine the condition of the ink as it was received into the pressroom, and also after it has been on press.
A sample of each of at least for else's should be placed in an air tight, in a non-porous container and sealed with vinyl or plastic tape.
Ink from the Can and Rollers
Ink from the Can and Rollers
Ink from the Can and Fountain:Ink samples from the can and obtain fountain will help determine the condition of the ink as it was received into the pressroom, and also after it has been on press.
A sample of each of at least for else's should be placed in an air tight, in a non-porous container and sealed with vinyl or plastic tape.
 
Printed Sheets with Original
Printed Sheets with Original   Printed Sheets with Original: Room temperature is imperative to obtain the press sheet or Web signature, which contains not original defect being described.  When obtaining printed sheets, be sure to collect at least 12 consecutive sheets, including several sheets immediately before and after the original.  Clearly identify that defect by circling it and staple this sheets together
Unprinted White Paper
Unprinted White Paper   Unprinted White Paper:Web and sheet-fed
Samples of the unprinted paper, which have not been through the press, should be obtained so a complete analysis can be done at the mill.  Sheet-that unprinted and printed sheets should be wrapped and shipped flat whenever possible.  Web paper can be rolled and placed in a mailing tube.
Tape-Pulls
Tape-Pulls   Tape-Pulls:When the press becomes contaminated with material that is causing print interference, it is necessary to retrieve this material for further analysis.  A recommended material is clear adhere laminating sheets, which allow the sample to be pulled from the press and rejoined with a backing sheet which can be then identified as to where the tape-pull was taken.
Fountain Solution
  Fountain Solution: If it is necessary to obtain a sample of the water from the presses water system, be sure to use an airtight plastic container.  Label the bottle as to which unit it came from and include all information regarding the mixture.
   

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Printer's Complaint checklist, helping your pressroom solve pressroom problems with paper and ink. Articles catalogue

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