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CO2 Mechanics Blog

Practical knowledge, tools, tips and techniques for developing and implementing innovative CO2-enabled clean manufacturing processes, products, and production lines.

Precision Cleaning for Historical Documents

Posted by Amanda Bunch on December 2, 2021 10:16 am

ICPF Heritage Science Published Journal Article 2021

Safe and Effective

ICPF Abstract (as published)

The cleaning of particles from smooth and rough paper surfaces using a high-speed CO2 snow jet was investigated. The measurements included characterization of the jet properties, determination of the cleaning efficiency, and evaluation of any possible adverse effects.

The method was compared with nitrogen jet cleaning and dry cleaning by commercial materials. The results showed that the CO2 snow jet is able to effectively remove particles from the paper surface and did not cause any observable degradation. The CO2 snow jet cleaning compared with the mechanical dry cleaning showed similar effectiveness without any adverse effects on the paper surface. It was proved that the CO2 snow technique is a suitable method for cleaning common types of paper materials.

(f) Before (bottom) and After (top) cleaning with CO2 Composite Spray

Before (left) and After (right) cleaning with CO2 Composite Spray

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