Brilliant colors true to the original on a premium surface – that ̓s what distinguishes a high-quality print product. Many elements in prepress and printing impact on a product ̓s color fidelity. The various input and output units in a print shop ̓s production process, consumables and other factors can cause deviations in color. A consistently employed color management system eliminates this problem.

In this series of blog tips we ̓ll show you the most common sources of error and give you tips on color management. We ̓re pleased to have caught your interest.

Step 1: Choose Consumables

Consumables have a very large influence on the print result. Deciding on set materials creates a basis and defines the boundaries. Changing consumables produces new results, which may necessitate recalibration. Thorough planning is, therefore, required. Examples of consumables include:

 Printing stocks

 Inks

 Blankets and underlays

 Dampening solution (additional amount + IPA)

 Printing plates and development chemicals

 Proofing paper and ink

1. printing plates

Different levels of dot gain can be generated depending on the water flow and ink absorption. This can cause the color dimensions to lie within or outside the range of tolerance depending on the type of printing plate, even when the same ink is used.

a. Printing plate type A: Color dimensions within the range of tolerance

b. Printing plate type B: Color dimensions outside the range of tolerance

2. Inks

Different inks can generate different levels of dot gain. This can cause color dimensions to lie within or outside the range of tolerance depending on the ink that is used.

c. Ink type A: Color dimensions within the range of tolerance

d. Ink type B: Color dimensions outside the range of tolerance

To be continued…

With reference Heidelberg Profitip series…

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