Poor Roller Transfer and/or Glazing

Problem:

Rollers are improperly or inadequately cleaned.

Solution:

Thoroughly clean-up with a good quality roller glaze remover. (To remove glaze, apply hot water to rollers after removing ink. This will remove gum glaze that is not soluble in standard wash-up solvents.)

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Problem:

Rollers are improperly set; rollers are swollen or distorted.

Solution:

Check and adjust roller settings. Check roller surface conditions.

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Problem:

Ink is unstable

Solution:

Consult your Sun Chemical representative.

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Problem:

Gum arabic and gum substitutes are in fountain solution; wetting agents used indiscriminately.

Solution:

Control use of additives and use proven fountain solution.

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Problem:

Roller surfaces have calcium build-up on them.

Solution:

Consult your Sun Chemical representative.