Paper Packaging

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Ink Smearing – Tracking

Problem:

Ink is not dry due to ink film thickness or formulation

Solution:

Increase drying speed of the ink by:

  1. Reducing ink viscosity.
  2. Reducing ink film with better metering.
  3. Changing ink formulation for faster drying.
  4. Decreasing machine speed.
  5. Decreasing anilox volume.

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Problem:

Ink film applications are uneven on substrate.

Solution:

Adjust ink metering, print and anilox impressions, as well as roll parallel. Also, check plate level.

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Problem:

Ink is not drying due to high hold out of substrate.

Solution:

Change substrate, reduce ink film thickness or increase drying capacity.

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Problem:

On die cut or folding operations, anvil blankets are worn or rough cutting die pressure is excessive.

  1. Folding belts are worn or slipping.
  2. Guides, rails or bars are hitting print.
  3. Stacker belts are hitting print.

Solution:

Optimize converting operations by replacing or trimming grinding anvil blankets, removing die rubber, replacing knives, reducing die pressure or replacing anvil blankets.

  1. Replace or adjust folding belts.
  2. Adjust rails or bars to minimize impact.
  3. Move or lift belts from print area.

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Problem:

Ink formulation is incorrect.

Solution:

Consult your local Sun Chemical representative.

Information about Sun Chemical

Sun Chemical offers a broad ink and coating product portfolio with a wide range of capabilities that include inks, coatings, color software and brand color management for paper packaging.

Learn About Sun Chemical's Solutions for Paper Packaging