Gravure

Print page

Blocking/Offset

Problem:

Ink is not drying properly.

Solution:

Add faster drying solvents and increase air flow.

______________________________________________________________________

Problem:

Solvents are trapped.

Solution:

Add faster drying solvents and increase air flow.

______________________________________________________________________

Problem:

Web is rewound too tight.

Solution:

Reduce chill roll temperature.

______________________________________________________________________

Problem:

Rewind pressure is excessive on web.

Solution:

Reduce web tension.

______________________________________________________________________

Problem:

Ink or varnish is over plasticized.

Solution:

Remake ink or varnish. Add anti-block agent.

______________________________________________________________________

Problem:

Ink or top lacquer is soft or has a low melting point.

Solution:

Remake ink or lacquer.

______________________________________________________________________

Problem:

Web temperature is low.

Solution:

Increase web temperature.

______________________________________________________________________

Problem:

Moisture condensation appears on the chill roll.

Solution:

Reset chill rolls to above dew point eliminate moisture.

______________________________________________________________________

Problem:

Check to see if the film is treated on both sides.

Solution:

Try one-sided film.

Information about Sun Chemical

Sun Chemical offers a broad portfolio of inks, coatings, color software and brand color management for gravure printing.

Learn About Sun Chemical's Printing Solutions for Gravure