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Four Color Process and Halftone

This section is filled with practical information on making four color process screen printing a bit easier and more consistent.

Linearization of the Imaging Process

Taking the necessary steps to ensure that the halftone information is correct on the film, screen, and press.

That's A Moiré, Localized, That Is

No matter how much you try to keep things consistent, there's always something that jumps up and bites you.  This article describes methods to help you avoid this problematic issue.

Mastering Moiré with the Screen Mesh

Most moiré is self-induced and can be totally, permanently eliminated as a variance from the print.

The Fine Line Halftone

Don't listen to those who say you can't do fine line halftones as a screen printer. To be successful, you need to have a positive, constructive attitude. Finally, you need to regard halftone screen printing as a whole. 

UCR and GCR - When and Why

In prepress, we are able to manipulate color to our advantage. John explains how we can save time and money with proper use of UCR and GCR.

Digital Halftones

Mike Ware explains the results of various digital halftoning methods.

Finest printable dot

Sefar teaches us to understand the reasons behind our finest printable dot sizes.

Guide to Screen Printing Halftones

Technical specialists from Sericol International give us an introduction to halftone printing based on mesh angles.

How to use your Densitometer

How to get the most effective use out of that new densitometer over in the corner.

Practical Tracking of Variables in 4CP Printing

Provides a format that is easily customized for your own shop needs.

Ten Ways to Avoid Halftone Moiré

From his series on Halftone Secrets, Mark Coudray offers tips on avoiding moiré.

Halftone dot diameters

Use this handy reference chart when determining the smallest printable dot for a mesh

Choosing the Right Line Screen

This quick reference describes how to select the right line screen for your separations.

Color Proofing Systems

A quick introduction to Matchprint systems – digital, inkjet, and traditional.

Four-Color Halftones in Screenprinting

Limitations influencing the quality of four-color halftone prints in the screen printing process.  Practical hints for problem free printing.

The Ultimate in Screenprinting Quality: Four Color Halftone Printing

Considerations for four color halftone printing.

Moiré in Four-Color Halftone Screen Printing

Discussions on avoiding moiré effects by understanding the mesh, halftone dot structure, color adjustments, stencil systems, printing and substrates.

Screen Printing Criteria in Halftone printing

The shape of the halftone dots, mesh geometry, fabric weave, calculating and moiré free halftones are discussed in this in depth article that addresses the criteria to meet for halftone printing.

Screen Printing of Fine Line Halftones

A technical evaluation of fine line four color halftone screen printing and the many considerations involved from beginning to end.  Major sections include general aspects of the problems, technical points, mesh tensioning, moiré phenomena and its elimination, stencil systems, inks, substrates, printing and drying.

Fine Halftone Color Printing: Risk or Daily Practice?

Specifics to consider in fine halftone printing.

Influence of Mesh on Ink Density in Halftone Printing

The effects of mesh and its relationship to ink density when printing halftones.  Topics include densitometers and how they work, color density, density differences, and dot gain.

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