Tinting

Problem:

Fountain solution has wrong pH or conductivity.

Solution:

Check and correct fountain solution.

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Problem:

Roller durometer or setting is wrong.

Solution:

Use proper roller and check setting.

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Problem:

Prolonged use of detergent wash has occurred.

Solution:

Wash-up thoroughly and use hot water for final wash-up.

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Problem:

Too much pressure exists between plate and blanket.

Solution:

Check and reset.

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Problem:

Paper coatings and fountain solution are contaminating and glazing the ink rollers.

Solution:

Use lowest tack ink possible, lowest pressure setting, and properly balanced fountain solution.

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Problem:

Plates are improperly exposed or developed.

Solution:

Consult your pre-press department.

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Problem:

Body of ink is too soft.

Solution:

Consult your Sun Chemical representative.