Following are the Main Features of Bag Sewing Thread :-
Yarn counts :20s,30s etc
1.High temperature resistant,
70% strength of threads remains after being in 260 for 1000 hours
2.Excellent Flame resisatant
The limiting oxygen index(LOI) over 28%,won't burn,melt or drip,above 370,start to carbonise and decompose,no deleterious gas release.
3.Resistant to chemicals
Resistant to most strong inorganic acid,excellent resistant to alkalis at room temperature.
4.Good textile properties
Low stiffness and high elongation,good mechanical property.
Mainly used in sewing the filter bag.