effect of mechanical cleaning on cotton fibre

8/8/2019 Effect of Mechanical Cleaning on Cotton Fibre

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EFFECT OF MECHANICALCLEANING ON COTTON

FIBRE

PRESENTED BY:

AMIT DINKAR MANE

071050024


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ABSTRACT

Four different types of lint cleaning were appliedto smooth-leaf & hairy-leaf cottonThirty six different combination of gin/mill

cleaning for each varietyStudy suggests that lint cleaner should be usedonly as a step in cleaning process & mostcleaning should be done in mill

This significantly improve quality of cotton &reduce short fibres


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O BJECT

To determine effects of combination of gin & millcleaning on fibre quality


4/18

M ATERIALS & M ETH OD S

Two distinctly different cottons were taken toinvestigate whether leaf hairiness will also affectcleaning

For both cottons thirty six combination of gin/millcleaning were appliedConventional cleaning were also used to show theimprovements possible using conventional gin &mill processing equipment in innovative way


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FIBRE SELECTI ON & PR O CESSI NG

Two samples were taken & named according toits properties as follows:

S - Smooth leaf cotton

H- hairy leaf cottonThis sample were from Stoneville, M ississippibecause of inherent difference in cleanability dueto hairiness of their leaves

In hairy leaf cotton, leaf hairs tend to attach tocotton fibres & are difficult to remove duringprocessing


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O PE N ING & CLEA N ING SEQUE N CESF O LL OW E D

1. H, 122. H, 12 ,K 3 . H, 12 ,B4 . H, 12 ,S,K 5 . H, 12 ,S,B6 . H, 12 ,S,B,BL7 . H, 12 ,S,K,BL8 . H, 12 ,S,K,K 9 . H, 12 ,S,R


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CON TI N UE D..

Each level of mill cleaning is more aggressivethan the last , starting with 1 ,the least cleaning& ending with 9, most aggressive .6 is considered

as standard mill cleaningM ill cleaning opens the cotton to small tuft size &extracts as much as possible before the cottongoes to cardProper cleaning protects the staple length, & theprincipal agent in this is the beaterThe three most commonly used are Buckley , theblade & the Kirschner


8/18

CON TI N UE D..

The Buckley beater is considered the mostsuitable for longer staple, cleaner cotton .

Blade beater, an exceptionally good cleaner,

opens the cotton & removes motes, sand, bits of leaf & trashThe Kirschner beater separates the fibres intosmall tufts & removes some fine leaf & trash .


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COM P O SITE G RA D E I ND EX AFTER LI N TCLEA N ING F O R B O TH SA M PLES


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PERCE N T LI N T AFTER LI N TCLEA N ING F O R B O TH SA M PLES


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BALE VALUE AFTER LI N TCLEA N ING F O R B O TH SA M PLES


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CV F O R S MOO TH LEAF C O TT ON


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CV F O R HAIRY LEAF C O TT ON


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PERCE N T VISIBLE SHIRLEY


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FIBRE PR O PERTIES RESULTI NG FR OM G IN /M ILL C OM BI N ATI ON

V ARIETY NO. OFLINT

CLEANERS

% V ISIBLESHIRLEY

% SF %C V ML

S 0 1. 78 8 .6 37 .3 0 .93

S 0 1. 98 6 .0 3 2. 6 0 .92

S 0 1. 94 9 .3 36 .7 0 .89

S 1 1.21 7 .3 33 .6 0 .92

H 1 2.22 1 0 .0 37 .9 0 .90

H 1 2. 00 8 .1 35 .8 0 .92

H 1 2. 00 1 0 .0 37 .1 0 .90

H 1 1. 87 7 .8 33 .8 0 .89

H 3 1. 48 1 0 .7 36 .1 0 .86


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CON CLUSI ON S

M inimum gin cleaning yielded the best fibrequality and highest trash content in the bale .

The best overall cleaning sequence for both

varieties used only one lint cleaner at the gin .Smooth leaf cotton needed gentle cleaning, whilehairy leaf cotton needed much more aggressivecleaning .


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REFERE N CES:

Effect of mechanical cleaning on cotton fibre, part2 , Patrica D. Bel, Bryan Vinyard textile research

journal September , volume 6 1 ,9 pg . no . 503-509 .

The Textile Institute : M anual of cottonspinning, 1 954W eber, F .X.US D A Program G ears to improvecotton quality, Textile W orld pg .1 38, 1 988 .


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THA N K Y O U .

effect of mechanical cleaning on cotton fibre

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