Porosity of Knitted Fabrics in the Aspect of Air Permeability - Discussion of Selected Assumptions
Journal Title: Fibres and Textiles in Eastern Europe - Year 2017, Vol 25, Issue 3
Abstract
The main focus of this paper is to look into the relationship between the structure and air permeability of single jersey knitted fabric – especially verifying some basic assumptions. First, if it is possible to neglect the permeability of yarns themselves when we evaluate that of knits, and second, if yarn hairiness plays a significant role when we evaluate the relationship between air permeability and the porosity of knits. Theoretical calculations and experiments which were performed using an analysis of microscopic images of the structure of textile materials are used for the determination of inter-yarn and intra-yarn porosity. The paper aims to show t hat the characteristic dimension of inter-yarn pores is significantly higher than that of intra-yarn pores, and also that the values of inter-yarn porosity measured using image analysis methods with hairiness and after the removal of hairiness are statistically significantly different. The correlation coefficients for the porosity values measured and calculated are very high.
Authors and Affiliations
Marie Havlová, Jana Špánková
Keywords
Related Articles
- EP ID EP199539
- DOI 10.5604/01.3001.0010.1695
- Views 62
- Downloads 0
Modification of Polyurethane Solutions by Means of a Hard Depositor for Fibre Production by the Electrospinning Method
The article is devoted to fundamental and applied research in the field of the processing of polymer solutions. The purpose of this work was to identify the possibility of using modified solutions of polyurethanes for pr...
Antimicrobial Functionalization of Textile Materials with Copper Silicate
A biofunctionalization of nonwoven fabrics was carried out with 0.1 - 4 wt.% of copper silicate. Polypropylene (PP), polyethylene (PE) and biodegradable polymers [poly(lactic acid) (PLA), polyhydroxyalkanoates (PHA)] or...
Influence of Fibre Length and Preparation on Mechanical Properties of Carbon Fibre/Polyamidea 6 Hybrid Yarns and Composites
The aim of this paper was to investigate the effect of carbon fibre (CF) length and preparation prior to carding on the mechanical properties of hybrid yarns as well as composites consisting of CF and polyamide 6 (PA 6)....
Otrzymywanie termowrażliwych poliuretanów na bazie zmodyfikowanego oleju rycynowego
W pracy otrzymano termowrażliwe poliuretany (TSPU) z glikolu politetrahydrofuranowego (PTMG), glikolu polietylenowego (PEG) i bezwodnika maleinowego zmodyfikowanego olejem rycynowym (MCO). Za pomocą SEM, DSC i WAXD zbada...
Wpływ systemu uprawy i odchwaszczania na plon i jakość włókna lnianego
Len włóknisty mimo wielostronnych walorów użytkowych jest aktualnie uprawiany w Polsce na niewielkiej powierzchni. Wynika to z małej opłacalności jego produkcji. Omawiana praca wskazuje na możliwość obniżenia kosztów pro...