Man Made Fibre Technology — Summer 2019

Describe important properties of man made fibres which has made it very popular.

Discuss in brief about thermal transition.

With a neat sketch describe process of air jet texturising.

Explain crystalanity and orientation in manmade fibres.

Discuss briefly about fibres with noncircular cross section and hollow fibres.

With a neat sketch describe turbo stapler.

Describe super micro filaments and its production technique.

Mention different routes through which polyester can be made flame retardant.

Discuss briefly about fibres with microvoids and microcraters.

List out various methods of spin finish and describe any two methods briefly with neat sketch.

Describe method to produce antistatic nylon.

Describe role of spin finish and its composition.

What is heat setting and why it is carried out ? Hence describe temporary sett. Also state its limitation.

State the types of aramid fibres. Hence state their applications.

Write a short note on metal fibres.

Describe briefly manufacturing process of tyre cords.

Describe applications of kynol fibres.

Write a short note on carbon fibres.

State different varieties of glass fibres . Discuss important properties and applications of glass fibres.

State the objects of texturising.

Describe gear crimping briefly.

Describe false twist texturising process with neat sketch.

Describe briefly defects in false twist textured yarn.

Describe important process variables in false twist texturising.

With a neat sketch describe stuffer box texturising.