Abstract:
Nonwovens used as watering substrate distibute water uniformlyand
act as slight water buffer owing to the absorbent capacity. So, the irrigation
solution is brought directly to the root zone. At the same time, using of
nonwovens with higher water holding capacity affects the frequency of
irrigation which depends by existing environmental conditions. In this study,
we present the influence of the needling process parameters on the functional
characteristics of nonwovens used as irrigation substrate. The aim is to
determine optimal processing parameters using a central, composite design for
second-order model. Our results show that the needling process parameters
have a significant influence on functional characteristics. The higher of needle
depth penetration and needle board frequency, higher is the compactness of
nonwoven (higher fabric density) due to the strong fiber peg formation as more
number of fibers are arranged vertically. Also, a less porous nonwoven
strauture has a lower water holding capacity.
