Assignment: Name of Assignment: About Knitting Machine

Assignment
COURSE TITLE: Fabric Manufacturing II

COURSE CODE: TE 302
Name of Assignment: About Knitting Machine.
SUBMITTED TO : SUBMITTED BY :
Name : MD. Faisal Mahmud Name : Moklesur Rahman
Designation : Lecturer ID : 181014018
Department of : Textile Batch No : 181
Green University of Bangladesh Department of : Textile Engineering
Green University of Bangladesh
Introduction
Knitted fabrics are known to have existed even before 256 A.D., evidenced by samples found
in Syria and Egypt. This art of producing fabrics was introduced to Europe by the Arabs. The
first knitting machine was invented in 1589 - incidentally 200 years prior to French revolution -
by Rev. William Lee of Nottingham. In hand knitting, yarn is looped around pin. The resultant
fabric, a matrix of rows and columns of loops, is formed by creating a single element in each
complete cycle of operation. Hence, if a fabric needs to have 100 loops in each row, then 100
cycles of operation would be needed to produce one row. Subsequently, loops of the row just
completed would be transferred one after the other to another pin and in the process new
elements are generated for the next row. The machine invented by W. Lee could however
generate one complete row in each cycle of operation.
Types of Knitting Machine
 Weft Knitting Machine: Weft Knitting Machines are used to make weft knitted fabrics by
just a single yarn. Knitting in weft is a more common method than warp knitting. In Weft
knitting, the looms are knitted horizontally in a circular form from left to right of the
fabric. Weft knits are made from a yarn fed into the circular knitting machine needles.
Weft Knitting Machine

 Warp Knitting Machine: Warp knitting is done by knitting in a zigzag pattern along the
fabric area. While weft knitting is done by knitting across the fabric, Warp knitting is
accomplished by running knits through adjacent wales or columns. Both Warp knitting
machines and Weft Knitting machines can be further classified into many types of
knitting machines listed below.
Warp Knitting Machine
 Circular Knitting Machine: A Circular Knitting machine is one of the most popular
knitting machines in use today. Even hobbyists make use of a small circular knitting
machine such as an Addi Express Knitting Machine to create their own knitted pieces
such as sweaters, gloves, scarfs and many small diameters sized creations.
Circular Knitting Machine

 Single Jersey Circular Knitting Machine: The Single Jersey Circular Knitting
Machine is a modern machine and has a simpler design than the Rib Machine
(Double Jersey Circular Knitting Machine). Also called Plain Circular Latch
Needle Machine, it consists of a set of latch needle and a set of the sinker.
Both revolve along different knitting cam systems that cause a calculated and
accurate up and down motion. This mechanism also involves the movement
of the yarn feeders that are placed at equal intervals along the circumference
of the knitting machine cylinder.
Single Jersey Circular Knitting Machine

 Double Jersey Circular Knitting Machine: This type of circular knitting machine has two
forms, known as Rib Machine or Interlock Machine. In the Double Circular Knitting
Machine, two sets of needles are contained in the machine. The cylinder has one set
and the dial has the other set of the needle. The dial and cylinder needles are arranged
in a perpendicular manner. Cylinder cams and Dial cams are two different set of cams
takes control of the knitting action. This arrangement can either be interlocked or
ribbed while producing the fabric.
Double Jersey Circular Knitting Machine

 Rib Circular Knitting Machine: The most notable feature of the Rib Circular Machine is
the rib structure it forms on the fabric. A rib structure is formed by the face and back
loops occurring along the coarse successively while the loops of the wales remain the
same.
Rib Circular Knitting Machine

 Interlock Circular Knitting Machine: Interlock is a 1×1 rib variant structure. Two sets
of needles work in both cylinder and dial that accomplishes at least two processes. With
Interlock Circular Knitting Machines, purl structures can also be made. These Purl fabrics
are knitted on specialized machines allowing dual-ended latch needles and special
devices of drive them and form intermeshed loops in two directions.
Interlock Circular Knitting Machine
 Pique Circular Knitting Machine: Pique Circular Knitting Machines manufacturer

textures with the waffle weave look of Pique fabric. This type of fabric differs from your
jersey clothing as it has a rough-look texture whereas jerseys have flat and smooth
surfaces.
Pique Circular Knitting Machine

 Plain Single Jersey Circular Knitting Machine: this machine is the simplest circular
knitting machine containing only 1 track of cams that produces plain single jersey fabric.
Only one set of latch needle is used. The cylinder, sinker and latch needle revolve along
the stationary knitting cam systems producing the desired density, thickness and ideal
properties of the fabric. Two and Four Track Single Jersey Circular Knitting machines can
produce a variety of fabric designs for its configuration is specially constructed for high
production purposes. Material ranges from cotton, yarn, pique fleece, two-thread
fleece, T/C, synthetic fibers and mini-jacquard. With this machine, you can flexibly
choose the number of cams for different fabric demands.
 Straight Bar Knitting Machine: Straight bar knitting machine have bearded needles on a
vertical bar. Movement is controlled by the accurately constructed cam system.
Divisions are equally distributed along the length of the machine in a number of heads.
Each knitting head can knit separately in a uniform way along the garment panel.
Straight Bar Knitting Machine

 Flat Bar Knitting Machine: Flat Bar Knitting machines are most suitable for flat or 3D
creations but is also applicable in creating tubular knits like circular knitting machines. In
this type of fabric knitting machine, the needles are arranged on a straight bar. The
mechanism follows a back and forth movement of the carriage containing the yarn
feeders through a horizontal path.
Flat Bar Knitting Machine
 Flat Bed or V-Bed Flat Knitting Machine: A “Flat” or Vee Bed knitting machine has two
flat needle beds having an upside-down “V” formation. Needle beds can stretch up to
2.5 meters wide. A forward and backward movement of the carriage known as the Head
or Cambox works to move the knit, tuck and transfer stitches. This type of machine can
make complex knit designs and sophisticated stitching. Knitting speed can be up to 0.5
m/s.
Flat Bed or V-Bed Flat Knitting Machine

 Raschel Warp Knitting Machine: Raschel Warp Knitting Machine makes warp knits to
form fabrics. In comparison with the other warp knitting machine, the Tricot, Raschel
uses coarser yarns. In fact, there has recently been interest in knitting staple yarns on
these machines. The mechanism is as follows. The warps are twisted and locked with a
loop from a succeeding warp. This will then be shifted back by another warp to the
preceding layer of knitting. Needles move in a steel plate known as the trick plate. It
functions to limit the top level of loops. The pull of the yarn and sinkers limit the loops.
This type of machine has locking belts relatively perpendicular to the plane of the
shaking motion or shogging motion.
Raschel Warp Knitting Machine

 Tricot Warp Knitting Machine: Tricot machines produce warps knitted fabrics that are
finer than Raschel Machines. Compound needles are used in this type of machine. Warp
yarns are fed to the needles through the situated guide bars by the shogging motion of
the machine.
Tricot Warp Knitting Machine
 Terry and Fleece Single Jersey Circular Knitting Machine: Fleece fabric, like comforters,
towels, bathrobes and some winter coats are quickly made with the Terry Single Jersey
Circular Knitting Machine.Terry Knitting Machines makes plain fabric on one side with
the back loop inserted with a number of wales (2-3 wales). The back area is brushed as
to make the fabric warm and tingly. The threads used can be fine at the top and course
for the back.
Terry and Fleece Single Jersey Circular Knitting Machine

 Jacquard Single Jersey Circular Knitting Machine: Jacquard Single Jersey Circular
Knitting Machine is designed with a three-position needle selection options – knit, tuck,
and miss, allowing complex Jacquard fabric patterns to be made. Jacquard fabric is the
most intricately styled fabric as it has a raised texture design that usually includes
flowers, brocade, matelassé, paisleys, damask and animal patterns.
Jacquard Single Jersey Circular Knitting Machine
Conclusion
In this Assignment we learn about different type of knitting machines. This assignment has
significant in our study life.

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Assignment

COURSE TITLE: Fabric Manufacturing II

Name of Assignment: About Knitting Machine.

Types of Knitting Machine

Weft Knitting Machine

Warp Knitting Machine

Circular Knitting Machine

Single Jersey Circular Knitting Machine

Double Jersey Circular Knitting Machine

Rib Circular Knitting Machine

Interlock Circular Knitting Machine

 Pique Circular Knitting Machine: Pique Circular Knitting Machines manufacturer

Pique Circular Knitting Machine

Straight Bar Knitting Machine

Flat Bar Knitting Machine

Flat Bed or V-Bed Flat Knitting Machine

Raschel Warp Knitting Machine

Tricot Warp Knitting Machine

Terry and Fleece Single Jersey Circular Knitting Machine

Jacquard Single Jersey Circular Knitting Machine

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