Lecture 1
Lecture 1
Lecture 1
manufacturing
Dereje Berihun
• Introduction to knitting:
the fundamental concepts
principles of knitting and knitting
machineries
classification,
structures,
properties and
construction methods
Introduction to knitting:
The fundamental concepts
• Knitting is a method and process by which yarn is
manipulated to create a fabric by inter-looping yarns that is
used in many types of garments. Knitting may be done by
hand or by machine. Knitting creates stitches: loops of yarn
in a row, either flat or in the round (tubular).
• The concept of knitting for converting yarn in to
fabric/garment was visualized long back may be about 3000
years ago and the same was implemented by some curious
and innovative minds using two sticks or needles. Such
technique is of course known as hand knitting but there is no
record of the name of the inventor of knitting. Hand knitting
is a slow process and still in practice.
Cont.
• William Lee started to develop a frame around 1561 for
continuing knitting process at a faster rate using a large
number of needles. At the end of 3 years’ excessive study,
patience and toil, Lee was enabled to make a course or
knit upon the frame and that too at a speed of 600 loops
per minute using worsted yarns. The frame was further
perfected and speed of loop formation was increased
before its commercial appearance in 1589.
• Since then modifications on the knitting frame have been
continued for making better to better machine for
producing quality knitted fabrics at much higher speeds.
Advantages of knitting
and down or to and fro along the needle axis for loop formation
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