Abstract
In this research an attempt has been made to modify the construction of a number of circular knitted structures i.e. single jersey, interlock, pile fabrics and single pique - This modification could be achieved by means of knowing the optimum constructional factors of each knitted structure such as type of fibres, tightness factor and yarn twist multiplier. This research is concerned with the evaluation of the selected knitted structures for mechanical and dust filtration applications with regard to specific work of rupure, bursting pressure, rate of abrasion, lateral expansion, filtration efficiency, p ressure drop, air resistance and eqivalent pore diameter. Mathematical models describing these properties could be obtained, by using factorial design method, for predicting the knitted filter performance. By using the mathematical methods, it was found that the optimum fabric construction is recommended to be interlock contained 100% crimped polyester fibres yarn, 16.98 tightness factor (i.e. yam count 20 Ne, loop length 0.31 cm, courses per inch 43.5 and 3.25 &e twist multiplier).
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