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Air-Pollutant Sensitivity Test
Air pollutants are known to have an important impact on the permanence of some digitally printed materials. Air pollutants such as ozone (O3) and nitrogen dioxide (NO2) can produce fading of the colorants that compose an image, yellowing of the substrate of a print and delamination of the print’s surface layers.
IPI’s pollution lab is equipped with environmental chambers to perform O3 and NO2 fastness tests on imaging materials.
A typical pollution test consists of exposing samples, printed with our standard test target, to an atmosphere of 5 ppm O3 or NO2 for 2 weeks, but the test can be tailored to the client’s needs. Samples are placed in the chamber hanging to ensure total exposure to the gas –front and back. Density measurements are taken before starting the test and at the end of the exposure. Pollution tests are done under temperature- and humidity- controlled conditions (25°C/77°F and 50%RH). At the end of the exposure period the collected data is analyzed and a full report, including an explanation of the test method, is generated for the customer.
Note: For pollutant studies, we only perform benchmark/comparative tests as we have no confidence in life predictions based on this type of test due to the variable nature of the interaction between air pollutants and imaging materials.
All test results are confidential.
What We Need
For the pollution testing, the customer provides IPI with the printed test targets. The target to be printed can be downloaded here: Pollution Target (8x10). We need 3 copies for each sample (substrate/colorant combination) being submitted for testing. This target should be printed on an 8 x 10 inch (or larger) sheet (if your substrate does not come in this format, please contact us and we will send you a new target; DO NOT resize).
Materials for testing should be shipped to:
Attn: Andrea Venosa (Pollution)
Gannett Building 7B, Room 2000
70 Lomb Memorial Dr.
Rochester, NY 14623
Ozone or Nitrogen Dioxide –for each sample (i.e. substrate/colorant combination):
- 2 weeks at 5ppm: $1500
- 2-week extension: $1200
- Minimum charge: $3000
For more information on air-pollutant sensitivity testing, please contact Andrea Venosa at firstname.lastname@example.org.