Yarn Manufacturing Technology (Jute Lab Reports)

Name of Experiment  :  Study on Jute spreader machine.

Þ Objects of draw frame:

            i.       To comb and open the pieced out of jute.

            ii.      To convert the, into an even and continuous sliver which receives an even application of batching emulsion.

            iii.     To prepare ribbon live sliver.

            iv.     To reduce weight per unit length of sliver.

Þ Parts in Jute Spreades machine:

            i.       Lead roller;

            ii.      Fluted feed;

            iii.     Feed sheet;

            iv.     Lantern roller;

            v.      Gill bed;

            vi.     Conduction plate & emulsion tray.

            vii.    Roll forms.

            viii.   Fast & slow chain.

Þ Working Principle:

            i.       This machine consists of two sections a slow chain and fast chain. Jute is fed manually on the feed lattice and this regulated by a slave points.

            ii.      After feeding the materials enters the slow section via a pair of fluted jute spreads machine feed rollers.

            iii.     In slow section, it is carried over a slow moving gill bed  or pin bed. The fibers are pressed on this pin bed by 3 heavy lantern rollers. This gill bed contains 32 gill bars.

            iv.     Then the material goes to fast section or combing     section which is formed by a gill bed with 10-12 times faster than slow section generally draft in 10.

            v.      The jute goes to conductor plate while emulsion is applied it.

            vi.     After emulsion jute is received by a null former in roll form.

ÞAdvantages:

            i.       Here lead / draft is more.

            ii.      Possibility of penetration of fibre in gill bed is more.

            iii.     It produced best quality jute.

Conclusion:

            i.       Jute spreades machine is influence on quality..

            ii.      The open and comb the pieced out jute the machine is  used.

            iii.        Jute spreades prepare ribbon live sliver.

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Name of Experiment  :  Study on Jute softener machine.

Þ Objects of draw frame:

            i.       To comb and open the pieced out of jute.

            ii.      To convert the, into an even and continuous sliver which receives an even application of batching emulsion.

            iii.     To prepare ribbon live sliver.

            iv.     To reduce weight per unit length of sliver.

            v.      The machine does two operations, namely mechanical loosening lubricating of jute.

Þ Parts in draw frame:

            i.       Feed sheet;

            ii.      Feed roller (straight fluted);

            iii.     24 pairs spiral fluted roller;

            iv.     Delivery roller (straight fluted);

            v.      Delivery sheet;

            vi.     Emulsion spray;

            vii.    Lead tension.

Þ Working Principle:

            i.       The machine does two operations, namely mechanical loosening lubricating of jute.

            ii.      This machine consists of 24-64 pairs of rollers. These rollers are spirally fluted and jute goes through them.

            iii.     Here a pairs of feed rollers and a pair of delivery rollers are also available which are straight fluted. A feed sheet  and a delivery sheet are placed before feed rollers and after delivery rollers respectively.

            iv.     Here emulsion is sprayed on 1/3 area of machine.                                                     Generally this spraying machine is placed on 22-24 pair of  roller is standard softening machines.

            v.      In this machine material is fed manually on feed sheet. Then through straight fluted feed rollers the material goes a series spirally fluted rollers.

           

Conclusion:

            i.       Jute softener machine is influence on quality.

            ii.      The open and comb the pieced out jute the machine is used.

            iii.     Jute softener prepare ribbon live sliver.

            iv.     Jute softener machine is mostly used.