Experimental Investigation of The Properties of Laminated Nonwovens Used for Packaging of Powders in Mineral Warmers

E. Irzmańska 1 , M. Jurczyk-Kowalska 2 , M. Bil 2  and M. Płocińska 2
  • 1 Department of Personal Protective Equipment, Central Institute for Labour Protection – National Research Institute, Łódź, Poland
  • 2 Faculty of Materials Science and Engineering, 02-507, Warszawa, Poland


The study involved laminated nylon and viscose nonwovens, both perforated and non-perforated, with a view to using them for packaging of powders in mineral warmers. The nonwovens were examined in terms of morphology as well as tensile strength in dry and wet states. Thermal properties were determined by differential scanning calorimetry. Dynamic mechanical analysis was carried out in a broad range of temperatures. Surface wettability and water vapor permeability were assessed. The findings were analyzed to determine the utility of the studied materials as mineral warmer packaging materials in cold work or living environments.

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