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Flow Chart of Kevlar Fiber Manufacturing Process

Flow Chart of Kevlar Fiber Manufacturing Process
Mustaque Ahammed Mamun
Quality Assurance Officer,
Lamisa Spinning Ltd. Tongi, Gazipur
Cell: +8801723300703
Email: mamuntex09@gmail.com



Kevlar Fiber:
Kevlar is the trade name of Dupont's para-aramide fibre. Kevlar Aramid fiber was commercialized by DuPont in 1972. Kevlar fiber is based on poly (P-phenylene terephthalamide). Kevlar fiber is used to make a variety of clothing, accessories, and equipment safe and cut resistant. It’s lightweight and extraordinarily strong, with five times the strength of steel on an equal-weight basis. Best known for its use in ballistic and stab-resistant body armor, Kevlar® brand Aramid fiber has shown its own heroism in helping to save the lives of thousands of people around the world.
Kevlar fiber
Production Flow Chart of Kevlar Fiber 

P-phenylene diamine + terepthaloyl chloride

Poly (p-phenylene terephthalamide) + HCL

Liquid crystal polymer (LCP)

Dry-Jet wet spinning2

Drawing at more than 300 ° c at 15-20 draw ratio

FDY or staple fiber of Kevlar