knitting technology

1. 11F406
KNITTING TECHNOLOGY
B.ELLAKYA(122FT103)

2. KNITTING BASICS
KNITTING:
• Knitting is the process of intermeshing of
loops formed by a single source of yarn.

3. Knitted Fabric

5. Woven Fabric

14. Circular Knitting Machines
• In circular knitting machines needles are fixed on a cylinder or
dial in a circular shape.
• There are more than one feeders to feed yarn to needles at
different places.
• In most of the cases needle bed (cylinder or dial) moves while
feeders remain stationary.
• Diameter of cylinder and dial is fixed but in case of sock
knitting machines it is changeable due to structure of socks

15. Circular Knitting Machine

16. Types of Circular Knitting Machines
• Single Knitting
• Double Knitting

17. Single Knit Machine
• In these machines needles are fixed on
cylinder and sinker are fixed on sinker ring.
Needles knit with the help of sinkers.

18. Single Knit Machine

19. Double Knit Machine
• In double knit machine needles are fixed on
dial as well as on cylinders. There is no sinkers
on this machine.
• This machine is used to knit interlock, rib and
double jerseys

20. Double Knitting

21. Flat Knitting Machines
• In flat knitting machines needles are fixed on a
straight plate. On this machine needle bed
remains stationary while yarn feeding system
called carriage moves from one end to other
end
• This machine is used to knit collars, arm bands
and sweaters

22. Flat Knitting

25. WARP KNITTING MACHINES
• Tricot
• Raschel

26. Warp Knitting Machine

27. Warp Knitted Fabric

30. WEFT KNITTING STRUCTURES
• Plain knit (single jersey)
• Circular Rib
• Circular Interlock
• Purl

31. Single Jersey
•Face side - v shape loop appearance
•Back Side - Semi circular loop
•Face side - Smoother than Back Side
•width wise extensibility is twice than length
wise
•Unroved from the course knitted last by
pulling needle loop from technical back.
• Curl upwards at bottom and top.
•Inner and outer wear.
•High Production low cost.

32. RIB Structure
• Reversible Structure
• Vertical cords and thin ridges
• Heavier
• Thicker
• Unroved from the last course
knitted
• Higher width wise extensibility
than length wise.
• Does not curl at the edges.
• Neck band, collars, arm bands
sleeve, waist band, apparel
materials
• Cylinder and Dial
• Two set of needle
• production low.
•EACH COURSE HAVING ONE FACE & ONE BACK LOOP.
•HAVING ALTERNATING WALES OF FACE & BACK LOOPS.

33. Purl Knit Structure
•Link - Link Appearance
•Reversible appearance
•Thickness Double than single
jersey
•Unroved from either end
•Does Not Curl.
•Width wise Extensibility

34. Interlock Structure
• Reversible
• Less extensible
• Does not curl at edges
• unroved from the last course knitted
•cylinder(two needle),
•dial(two needle)
•low production
•costly

35. ELEMENTS OF KNITTING
• Wale: Longitudinal series of loops
• Course: Transverse series of loops
• Loop: The basic knitted element
• Needle:The knitting element
• Sinker: The supporting element for knitting
• Feeder: The yarn feeding element
• Cylinder/Dial: The device to decide the needle
movement

36. ELEMENTS OF KNITTED LOOP
STRUCTURES
• Knit Stitch
• Tuck Stitch
• Miss Stitch

37. Knit Stitch

38. Tuck Stitch

39. Miss Stitch

40. KNITTING NEEDLES
• Latch Needle
• Spring Beard Needle
• Compound Needle

41. Loop Formation Sequence of Latch Needle

42. Loop Formation Sequence of Spring-beard Needle

43. Loop Formation Sequence of Compound Needle
NeedleNeedleNeedle

44. Sinker Operations
NeedleNeedle

45. Typical Cam
system of
Single Jersey