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Jute Manufacturing in Jute Mills

Raw jute in the form of bales are processed in jute

mills to produce hessian, sacking, jute yarn, bags, and

other useful products. Raw jute bales from jute fields

or suppliers, carried by trucks are unloaded are

stacked in the jute mills gowdown. The production of

jute goods from raw jute processing involves the

following steps:

Selection :

In the selection process, raw jute bales

are opened to find out any defect and

to remove the defective portion from

the mora by experienced workers. Raw

jute bales are of two types i.e. 150 k

weight and 180 kg weight with o

without top portion cutting. The bales

are assorted according to end use like

Hessiean weft, Sacking wrap, Sacking

weft etc . After selection, jute bales arecarried to softning section by workers

called Gariwala and Bajawala.

Jute Processing Chart

Selection, Softening &

Piling, Carding

Drawing & Doubling,

Spinning, winding,

Beaming/Dressing

Weaving, Damping &

Calendering, Lapping,Cutting etc.

UNDP and Govt. of India

- National Jute

Development Program

Productivity

Improvement in Jute

Industry - Report by I.

I. T Kharagpur, 2000

Rice Bran Oil (RBO)

Technology - Food

Grade Bags

Jute Composites

Advance Jute Testing

EquipmentSoftning :

In softning process jute morahs are made soft

and pileable. Two methods are used for softning;

use of softning machine and use of jute good

spreader. Generally an emulsion plant with jute

softner machine is used to lubricate and soften

the bark and gummy raw jute. The emulsion

plant consists of gear pump, motor, vat, jet

sprayer, nozzles, emulsion tank and the jacket.In this softning process jute becomes soft and

pileable and suitable for c arding.

Piling and pile Breaking :

The main function of pile breaker is to break the pile and serve it to the

carding machines. The softner machine out put material carried by pilemen

through a bile to the pile place for pilling. During piling a superfic ial moisture

penetrates inside fibre and "Thermo fillic" action take place which softne

the hard portion of the root. After piling for nearly 24 hours the pile

breakers carry the material to the carding machine.

Research in Jute

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machine. The root weight varies from 5 to 7% of the total weight of jute.

Carding :

Carding is a combining operation where jute reeds are splitted and

extraneous matters are removed. Jute fibres are formed into ribbon called

"sliver". There are three different carding sections: (i) breaker carding (ii

inner carding (iii) and finisher carding

Breaker Carding :

In different jute mills the carding operations has been carried out in two

ways:

a. Hand feed breaker carding

b. Rool feed breaker carding

The material after piling more than 24 hours is used in hand feed breake

where the material after piling for 12 hours used in the rool feed carding.

In the Breaker carding machine soften jute after piling is feed by hand in

suitable weight. The machine by act ion with different rollers turns out raw

jute in the form of jute sliver for finisher carding. In this process roo

cutting is necessary before feeding the material to the hand feed breakecarding machine.

Finisher Carding :

Finisher carding machine make the sliver more uniform and regular in length

and weight obtained from the Breaker carding machine. Finisher carding

machine is identical to the Breaker carding machine, having more pair o

rollers, staves, pinning arrangement and speed. Nearly 4 to 12 sliver

obtained from Breaker carding machine is fed on this machine. The materia

thus obtained is send to drawing section.

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