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NYLON. Tutor: Josanne Ghirxi B.Pharm (Hons), P.G.C.E. School: St Benedict College, Margaret Mortimer GJL, Malta. A Project by Deborah Francalanza. Nylon - Definition. A generic classification for a family of synthetic polymers known as polyamides.

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Tutor: Josanne Ghirxi B.Pharm (Hons), P.G.C.E.

School: St Benedict College, Margaret Mortimer GJL, Malta

A Project by Deborah Francalanza

nylon definition
Nylon - Definition
  • A generic classification for a family of synthetic polymers known as polyamides
  • First produced on the 28th February 1935 by Wallace Hume Carothers, an American chemist, at DuPont
dupont corporation
DuPont Corporation
  • An American chemical corporation
  • Currently the world's second largest chemical company in terms of market capitalization
  • Wallace Hume Carothers appointed as head of DuPont Organic Chemistry Department in 1927
  • Carothers was born on the 27th April 1896 in Iowa and died in 1937
early history of nylon production
Early history of nylon production
  • To replace Asian silk with a similar, durable but less costly product
  • Carothers produced half-an-ounce of a polymer (labelled as polyamide 6-6) at DuPont Corporation on 28th February 1935. The polymer was eventually developed into a commercial product - Nylon
  • Early use of nylon was in parachutes, tyres, tents, ropes, ponchos and other military supplies
characteristics of nylon
Characteristics of nylon
  • Varies in luster
  • Durable and elastic
  • Easy to wash and can dye
  • High resistance to insects, fungi and chemicals
  • Abrasion resistant
  • Melts instead of burning
modern use of nylon
Modern use of Nylon
  • Clothing - footwear, velcro, carpet fibre
  • Auto parts - petrol tanks, gears, bearings
  • Abseiling gear - slings and ropes
  • Sports items – racquet strings, basketball netting, fishing lines
  • Strings - music instruments
  • Medical equipment - filtering media in sterilising, sutures
visit to nylon knitting malta limited
Visit to Nylon Knitting Malta Limited
  • Production of synthetic fibres and finished fabric used in diapers from raw material
  • Raw material (PA6) arrives in big bags and unloaded into silos
extrusion and spinning
Extrusion and Spinning
  • PA6 is fed to the extruder
  • Heated into a molten state and pressure fed from the extruder via heated jacket tubes to spinning pumps
  • Polymer is forced through a complex filtration system and finally through spinerettes
  • Yarn is automatically wound on spools to a pre-determined weight
draw warping and warp knitting
Draw Warping and Warp Knitting
  • Draw warping machine runs new load of yarn whereby beams with defined number of threads and meterage are produced
  • Beams are loaded on knitting machines that produce fabric rolls of a chosen type, width, and length
  • Finished rolls are transferred to packing machines, labelled, and checked prior exportation