Write briefly about molecular orientation in fibres.
[3 marks]What are the advantages of man-made fibres?
[4 marks]Explain about the extruder in the melt spinning machine.
[7 marks]State the non-conventional applications of manufactured fibres.
[3 marks]Write briefly about the cooling system at melt spinning
[4 marks]Compare dry spinning and wet spinning.
[7 marks]Discuss recent developments in the texturising technology.
[7 marks]State the types and application of aramid fibres.
[3 marks]Write briefly about production of fibre forming polymers.
[4 marks]List out various methods of spin finish and describe any two methods briefly with neat sketch.
[7 marks]How does the structure formation take place during solution spinning?
[3 marks]Write briefly about the nature of set.
[4 marks]Discuss process variables of solution spinning.
[7 marks]State the objects of texturising.
[3 marks]Explain edge crimping.
[4 marks]What is glass transition temperature? Explain in detail.
[7 marks]Describe briefly defects in false twist textured yarn.
[3 marks]Describe role of spin finish and its composition.
[4 marks]Discuss the factors influencing properties of textured yarns.
[7 marks]Give the classification of yarns in air jet texturising.
[3 marks]Write briefly about the gear crimping.
[4 marks]Describe false twist texturising process with neat sketch.
[7 marks]What is knit-de knit texturising?
[3 marks]State the features of high speed spinning.
[4 marks]Write in detail about the draw texturising.
[7 marks]