Assume all fibers were randomly deposited in an elementary plane then prove that the mean pore diameter of the nonwoven fabric  d p  is independent of fiber diameter and dependent on fiber length l. Fig: randomly oriented fibres questionsoftextileblog Know textile Let the fibers be distributed randomly in an elementary plan of unit area and the probability of n fibers that present per unit area is given by Poisson distribution P(n) = e -c * c n / n!    ,  where c is total projected area fibres per unit area of the plane (total coverage). Evendently, c=nld,  where  l= fibre lingth and d=fibre width (diameter) The fraction of area covered by one fibre is: P(0) = e -c = ξ        -----------(i) Clearly, (1-ξ ) is the fraction of the unit area covered by fibres. The total area A c  occupied by all fibres croosing per unit area of the plane is: A c = ∑ n=2 n→∝ (n-1)P(n) = ∑ n=2 n→∝ (n-1) e -c * c n / n! = e -c [ c 2 / 2! + 2c 3 / 3! + ... + (n-1)*c n / n! + ...] = e -c [ c 0 /

Singeing Process Introduction Objectives and Advantages of Singeing Types of Singeing Machines Plate Singeing Machine Rotary-Cylinder Singeing Machine Gas Singeing Machine Parameters for Gas Singeing Machines Condition for GAS singeing Test for the effectiveness of the singeing process questionsoftextileblog know textile Introduction: The term "singe" refers to the act of superficially burning a material. In the textile industry, singeing is used to remove: Loose fibers that are not firmly bound to the yarn or fabric structure. Loose yarns that are not firmly bound to the fabric structure. Protruding fiber ends that stick out of the textile yarns or fabrics.