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W niniejszym artykule przedstawiono wyniki pomiarów porowatości włóknin igłowanych, które w dzisiejszej dobie stanowią główny asortyment geowłóknin, jak również mają znaczny udział w produkcji włóknin filtracyjnych.
This paper presents the results and conclusions from experimental investigations concerning filtration properties of nonwovens. The needled nonwovens were made from polyester fibres (PTE) with average fibre diameter 12 pm and polypropylene fibres (PP) with average fibre diameter 32 f im. Nonwovens were produced out of each of those fibres or out of a mixture of polyester and polypropylene fibres....
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