Rib Mat Production Process
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Transcript of Rib Mat Production Process
8/6/2019 Rib Mat Production Process
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Double Placemat
4Pk Placemat
Rib Mat Production
Process
Runner
Placemat
8/6/2019 Rib Mat Production Process
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HANDLOOM
When a l l the th r eePRIMARY motions (i.e.Shedding, picking and
beat up) of the loom inweaving process arecarried out using hands& feet only ( without theuse of any other power
sources like mechanicalo r e l e c t r i c a l ) t h eequipment is known asH A N D L O O M .
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WEAVING
Weaving is a process of interlacement of two
or more set of threads at right angle.
Warp (³end´): Set of vertical threads run onloom.
Weft (³pick´/³filling´):
Set of horizontalyarns interlacing with
warp threads.
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PREPARATION FOR WEAVING
Preparation of Warp Beam: Dyed yarn in hank form is being wrapped
on to a convenient packages ( bobbins) and such packages are being
mounted on a creel according to the warp design and repeat. Threads
from all these bobbins are first drawn through eyelets on stationery
frame ,then through a hand held guide frame it is being wrapped on to avertical warping frame, which is rotated by hand, by the operator. Such
wrapped portion forms a section of the ultimate full warp which is being
wrapped on the warp beam.
Preparation of Weft Package (Pirn Winding): The different colored weft
threads that are required are being wrapped on pirns and kept ready by
the side of the weaver in a basket, ready to be picked up and used as
and when necessary. These pirns are fitted into a shuttle, which is
propelled from end to end during weaving, releasing the weft yarn to
form a pick .If the fabric being woven is of narrow width, the weft package
is moved from end to end to insert weft by hand .
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Dyed Yarn
in the form
of Hank
being
reeled
Pirn winding
Pirn for weft
Package for rib
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Weft Package ready for
inserting Rib
WEFT PREPARATION
Stick on which weft threads
will be wrapped
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WARP PREPARATION
³Creel´ holding warp bobbins & warp
passing through the eyelets
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Eyelets
Guide Frame
Vertical warp Frame
WARPING ACCORDING TO REPEAT
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PREPARATION OF WARP FRAME
Maintaining
tension of the
warp
Warping
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PRIMARY MOTIONS OF WEAVING
Shedding : This is the process of separation
of warp threads into two portions (up & down).
Picking : This is the process of insertion of
weft threads from one side of the loom to the
other.Beat up :This is the process of forcefully
beating the newly laid pick into the already
woven fabric.
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SHEDDING
Feet pressing ³treadles´ to open the ³shed´
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PICKING
Pick insertion by hand
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BEATING UP
Direction of Beating the weft through ³sley´
Rope mechanism
for moving
shuttle from end
to end.
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SECONDARY MOTIONSBasically there are two secondar y motions:
Let off motion : This is the process which ensuresrelease of the warp threads from the warp beam for
insertion of weft.
Take up motion: This is the process with which the
cloth woven pick by pick (woof by woof) is being
wrapped around on to a cloth beam, usually at the
bottom portion of the loom.
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LET OFF MOTION
Pulling lever through chordwill unlock the ratchet wheel
connected with warp beam
which will allow the warp
beam to rotate freely to
release the warp threads.
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TAKE UP MOTION
Pressing the spoke of
the cloth beam to wind
the freshly woven
portion of the fabric
on to the cloth beam.
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SIZE MEASUREMENT OF RIB MAT DURING
PRODUCTION ON LOOM
Conventional Scale to measure size
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Capacity: One operator can weave 24~30 placemats of size 13´x19´
per day
Limitation:� Size variation due to improper shrinkage due to tension variation, beating
variation and conventional method of measurement.
� Shrinkage variation due to tension variation and beating variation.
� Number of picks and ribs variation due to variation of power applied duringbeating. It depends very much on operator strength like young age operator
has greater strength as compare to old age operators. It also depends on
freshness and fatigue of the weaver.
Advantages:�The biggest advantage of handloom product is that all production being
done with conventional source of energy.
�Provides employment to large number of people in cottage industry.
�Fabrics with Unlimited number of colors in weft can be produced. Smaller
quantities in each design can be produced.
�The product will have a distinct handmade texture.
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