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GPX solved case

Poor ink adhesion in printing: causes related to storage conditions

On a material I print on regularly, the print this time shows areas where the color does not seem to adhere well. The file is the same one I had already printed several times without problems. What can I check?

By Cristiano Zappacosta — Senior Graphic Production Consultant

The problem

On a material I print on regularly, the print this time shows areas where the color does not seem to adhere well. The file is the same one I had already printed several times without problems. What can I check?

Cause and analysis

The areas of poor adhesion could result from a variation in the material's storage conditions (temperature, humidity) that has altered the surface, reducing ink anchoring.

The poor adhesion could be due to surface contamination of the material (dust, oils, residues) that occurred during storage or handling before printing.

Solution proposed by GPX

A variation in ambient storage conditions (relative humidity, temperature) has modified the wettability or roughness of the material surface, compromising ink adhesion.

Limitations of this analysis

This analysis is generated with the support of Artificial Intelligence: always verify its correctness and applicability before using it. The reliability level of this analysis is "Low", not the highest possible.

Checks before proceeding

  • Once I know the printing technology and material, we can first verify the condition of the surface (clean or contaminated) with a visual and tactile check, then adjust the ambient storage conditions if necessary.

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