COIR FIBRES

ex!.3rp r)i llrc Ir L] r ot.o.oDul pa|f, cocosnucllra lt irnt. rhese liLrre\ar. !'id€lt c!lIrared jrr rtretIi)ti.s, p.r itutart\ ii indin.Sri LaJilia, Nfalnrsta,lf d!.esia ard thiti!!rirj(js.Ilorlertr Indi! and Sritantaa.c the mair r)r!duce.\.t

C!i, liLrres aft targclrur.d nr tlt nianul cl re |tr!dr..o ale nnd \.nle raDge.llur ishinus srrh as !rats,!rartiDgs. r(.qs. .rr!e1s..asJiinnll! lDsLrtatior.r.lirn. i( a !thg rrateriats, l trerhlsical chrra.i!,rist, s !iidJheuri.rI .omDosilt.Lrsr.1

thc sflirrliDg qrialjrt ,: .:::br lhe a.r o. r)t enzr nrij r.:r:

lhe !reserl sr,jdr ha.beeD c.rfti(red q,iltr alie\ I la.hie!c subnaltial redu.lilrlh Lhe risidil\ ot c.tr tihrestliron!:h a!!r!pri!le srtreDtDgr'hi.lr is essfDtirt or loirsritinil! thr!ugh Itgh sp€cd

Softening of coirfibres

Physical andchemical impuritiesPresent in coir fibres

Il(.cluni(:alty erlJ ad edand r€tr{,d.oir titrr.s wercrcsted Ibr rhe le.rrh !iisrtbn

dllli!'uh. HeDce. n,lte,,ingotejiJ Uhres isneccssarr to cnhanc. thetr spinnabitill:s.mr rei.ar.il srodi(s wG (D,iucr(dcdicr tu inpro|e (tie {ttn(js.I.oir ibrcslad'narabh!nCVr ha.l1rie.L ilittr oil!n.l$aler Bhal I \' et ai'ha.l trse(t Dicr.o.ganisms ard prabu lt\.had u{,d nnD!orga.l. ird iDorganic .trelr cal\ lo

lion an(l prcsence .t ptrr si.a r,,r.j ::::mi.al jnprriric\ u!ios an.tr ir:: . .lhodsr'.T|c.e\uh!!r.!jr:!r:: :-. _.

\Ic( haric. , .\ rrar:: ,

h!!,e fhlsn.at !rd .her,:. i .,... , .. llfic hrne ol li , tJ,ir-r::.:::::::.:.iitr.es. rhe e\1.n. .,: ::I:::i ::. i :: i :.llN a( ar{nrf.l j \irn!nire rhe llcxjbititl o1 .o I

libres. lD all Llj.se re.tjdqucsllcribilit)- of roj, litr.es t,asimproir.d ro unc e\tcDr. bulrh. imp.oichenl \,as Dor Il )uDds!llicictlt lo ctr|an.c t|cspirnabilitr ol ..i,

larlier, Slt R-\ condtrclcderlensire trial5 0I solleDineol pti.aprle l.nl fibr.s 111r.Frlor: rds efhar.ifg its\!iDrabllttr!, Studics \ erellso.arried our t. imtr olc

Length/Breadrh reito rL B

Exrension ai b.ea ( r!.)Flerural rlOidiiy lovnes,cm:)

Moistur€.€sain ar 6sot RH

95.O3 5.02ao0.452a.a

200 o

40.010.50

Softening of coir fibres tormprove flexibility

_ KAvijayakumar and M KvittopaThe SoLth tnd a Texule Fesearch Associat of (S TFA). Co mbalore 64j 014

. ,ir librc arc !ro\,id(rt n T,tbt.,s I hD.t -l

/rae 10 drc prcsence 0t hiEh qLartitrrlli!rif. !,ir libre ts rery.hard. lir aus;

The present study hasbeen conducted with aview to achieve substan_tial reduction in therigidity of coir fibresthlough appropriatesoftening which is essen-tial for coir spinningthrough high speedspinning machinery.

ilhe nilari\,eb. lorer lcnerhrbrcadth:nrio slinning o1 .oir llbrcs is rather

Asian Textile Journat . S"pt".Oo:OOe . aS-

COIR FIBRES

displa.ed slojllr tlnards thc licc ri,d .!the libre For deriatilD ol I nnn 1i e J

lr.nr.rigiial r,.sitior. the disrlaceDle.iI is n.i!d rnd 1|c sa.re is eluessed ai

,,iaier sol!ble rnatrers

D25

3.005.25

32. S6

0.15

2 7520.oo264

Results and discussions

Effect of softening on rigidityof coil fibres

ser erll softaliirg trials ('sf .rtl.,lLr usins dilf.r.ni.heni.als afa

:rLrr.r.s !. .oir 'ibr.s. I hc solt€Djrg- heDi.ali af(l srilrirlri l)a.arLclc.s1cr. .hoscD lieepin! rir in!rd lh!.rriI rh ri1). i.d the !r.pertics oI coirjib cr Srir. r1 lhe imtorlrfl: lr ialsdnd.rlr icn ar. briellt' des.rib(d

SfinrLrg rrir!s r,e.e iarri.d out lor

i!ir'ju1e and ..ir shaL bleDded F,rrria!!l(r ;(l i(rr6lr and if')r)l usiDs all Lhf

.l,rmical ond .rrr nr. lrcalcd librei!.rrfles 1a! llirfr ir) r,nl + in rir{LiLledjnr{. [!cr n]nDiDg st sLeDl . !|sell o,i Lhe

ii.r {)r riIrr! lrl lLe spiDDirg lrials.I.ll.r.iru soltening trerlinenl r'!s lo!ia.J)Lidru!r l.r .oii lilir.s.

sllltl r.s delelop&1a simpl. m,1l,,rlLo 1r\1 rlrc rigidir) .l..ir Iibres,lrsiDg 1h'De lt dc\clorcd !rerh.d. chemi,allJ$tteDed coir librr5 i5 N.Ll a; urtreetcd.oir IiL,res Ner. rc\rd ft,r Ihcir rigiditt.llie nrrhod oldelennnaL!,, ,,1 rigidilt'iD1|. r01 nrlh.dis shlnn iD t-. /.

.10 nrD leDgih ol cDir liIr. tl,r is

nnmlcd ii) i irarne and a -10 D1g o r'.ighlis fhrcd al rh. bas€. the rreighr r1\ is

The soltened and !nrk,ated rflibres are rested l.r risiditt b! nsrri.\11RAs meihod and rlie resrlts:r'

lh. ft!rlL\ slio{ lhal 1lL! ri!i ill.oir li!rcs rcau..a drc 11i,hc.,i,solrering br aLrort 70j, Chenj(alsohencd.oi.lib..s (c[ i1Lo L(i:].{l r :

lteruraL risiditt usiDg the classicrl | : .

r,)r ,,rrr:l r, : l (i9l

thr zd

.{ller caqslir b.ilnrg rhe I'br.s ar.n ashed. rctLtrali.ed treated Nilh.r!gnfsirinr L l)lori(l(i 111r rctainrh'soltLress iDpulea 1! Ll,c lil)rdrl atrLl I =1rr!r1r.r o r rl,ff = 1|,r,r

i:i te,,:rrn r.i|krlhl!.,ri = L i

Fr! I D.r.r,rirti., .iri,titlitj tir .Dr i btt\11=illlrrlr/.r..tid rnt riltu = .?rrrr!

I =D,r,rr.nFri.lrhr...rlr.rgrii rr,/

Mech:nical y exrracred.oir

16.2635.S1

16.394.5113 22

j.872.912.562.42

4.27

17 11

1,1 986.9717.1256.01

3 7.91

12.5423.6726.7325.2411 78J.12

a.27

o 55

132367261237

5.5:

10.3:24.':

2a.l a

Asian Textile Journal . September 2006 .86

COIR FIBRES

Narn€ of llr€ .h-"m.:

E,o

fj! i : I tn.r-..: t)i ntr.,.te.i .jrtjtrE)ttLl..it lthtr\

It i. ! leri : r:rlrcmi.dl :

empererure:60rc

Ljoncenrrarion i I si, 5 s,r, a.d ro g1t

Concenrarion : 25 s/, and so g,/l'renperar!re : Fooff tenrp€rature

25 q/ .nd 50 q

r€nrperat!r€ : Foom tenperature

Concentration I5 g/

Concenrralon: s gl

5

jrrp

t hc. ren,ll ol ertoat ristditJ oi roir Effect of softening onli',::,,j,,i':ii::,,

*., ^.-

rl,op rlrrrod fineness of coir fibres

Flexural rigidity ofcoir fibres (gf.cm,)

il LlelorLr sollenbg 1 0;!)lijr r\lier !)IleDirS rl +6t I

lloth .r..ha.i!all! rrrrarr.d a.(l breaj,i,,! :,I.t

nrlterii,g. this mar b. due L.lher.rfolal tr.!k,nr ..

IL is dis..rj)tLrlr h)D the al)1,1,. librc drrnrg cheDi.at sohc; trs.rlLal chemirr solLrfjDg redLr(.slLrx,, .rt riBidi r .t .oir tibr c\ b! EIIect of softening on Conclusion

breaking elongation of,, ,r1hl. I rrh LlrL,sp , ., ..r.r".4,,... ir.',ii,', .i',",1 i ,,.: coir fibres ' : rri:.. "ir rbrt\ rrirh.iL,\r .'

"*","..r ",i,g ,r,,, ;.;,,';;,,;;;;,i rhe, re., !rsolrc iDs., br.ar ns li:J:il,:;, : l:i'll "i:l,illl: ,

SITR^.letLrod. rlolsari.D!t(!irll)r.csh.rnj,jF€r. . Siitr.r rr* a.""t,,p.r ,rrcx frdh.,lAsian Textjte Journat . Seplember 2006 .87

Cofce.traiio. : so/0, I o9/., 2oolo, 30% a.d .xOtiemperarur€ : 100rC

r-o.centrar on 5ta, 1A%, 21on,3Oyo and 40o,/orerperarure : 100,C

Concerrrat on : san, 1Aon, 2a%,309, and 40o/^l.mpe ature 100!C

Corce.rrarion : alr, 1O%, 2a%,3Oo/o and 409/oIernperaiu.e : l Oo'C

Cofcenlrat or 1 s/1, 5 s/1, .nd jo !r

Concenrr.ilo.: 1 g/t, b glt, ard jO s1l

COIR FIBRES

rlnint .i Dla[ l]br.s lilie Ac/.noLr'/edeenrent

the authors are lhanklil to Dr.lrindalr Ilasr Dire.i.rr SIIRA llr lisgridan.e d[ing th8 progress ol this!tutrrl IIanl$ nr. alsl) duc lo UrDclasis fhar1.!!dh!!t 5cnio t.jcinilir!fi.er. spiDriDg dn,lsnD. SITR,\ lo hisguidan.e throughout the course ol

R.h.rt R Frri i, Eirr iid .rhe r rntih(i, \'\rdi inn Prb rlri.q L nr r..1,

I rnrbr . !. zaa! PiU! .19!.

al5 R Co r l1! ertlr.rLn l)l)|.tr1.s3 r. \e! a.L rl ,rf nrLr. Iie.ear( h, Ne* Lrr h lrrbil, Page I iJ

ridnrnnbhrn ( \', ao r bretolibr.f'rrr Pr...ri.i nrruii.tLr. a. r \{).l ir. , .r4., P1g. .1

Brir \, (!nra; K li, P; nra a !nrn.l. : ai .rntl r'trr rlru li N 5.fnarlf! .rCln F !. C.i, \1r u( l-, l9ll FrE.

f'rrr! c\, r\ re! e\r o he .henr rrrL

in. ihe .hemi.r r..lr r. .E! oi .. ,

i IrL. Prrt P( i r nrr) tr!illlent! .

!.inari.! i.!l lr !d.tr r!, Co r, v.lunriN!.+ 19i6 l'a!e ll

rlri Lr! i !\!r nl nfn ll -'

ah-- inin, f'n.ifrl. L..rr F l)rf:e\til. rr.!(is Vo rm. ,1.1, N!

rr ni D! i !r,anr! et i Bilt nn..rr.! rnt i b e!, rhe Tr\r . ni r!r:\'1rr.ire!ter 1005 I'iF. l.lS !j03 ifid I lr : l!r:rl5Fe.ir.rti.n i)r rlrl lr.frra

S 193:l!19!,5le. ri,_.rt or lo R!iti

nl a Doia sni r in. K 'ah! imrf , !. ef.. in.L i..hn. .g\tre nrr!ir.tur. .i l!t. trorui -

S TRA,I:. Dlrnrr,.ltl.l, P.8! l:Il.ri.f \! F i.n Hei' e I i.! :Ph!r .i IoIP ries !1 terti e rlir :T(\r . fst tLte, 4rn.r€lte, !1,

L sing the rrcwly developedmethod, chemically soflened

coir fibres as (,ell as untreatedcoir tibres were tested for

: :I.rL rilh magnesi!h .hl.ride.::.:(j iIe rigidir) ol coir lilircs h)'

ilr.!l1s on lil.fu rlgidilr' !Lrlairlfdi rir ih. ff(l! a.vrloF.d SITll.\:.: l1L, L l ..D!ares 1a\'.rrablt rvitLl

,.: Lrl,lairjrd j. lljr rllssi.rl ridg

!hcnicxl soltenitrg ol .oir ljbres: 1! r r.nd.n.r l. r.d!.. Lhc lircar. .i \ .L lhr lil.rr\ rrrl l. ntr)r{i 1h.

E

Premier Focuses on Innovative Quality Solutions at thenational seminar at Tex Spares 2OO6 exhibition

Premier p.cscnte.l a.omprchcnsiv. pape. od theapFliciion ofparameters !ike Hai. Count, Relative Sho.t Fibre

.orrent. nep cLassificatlon etc towarcl! fincling optinl!msolurion lor the problems facecl by ihe mjlls in India at ihere.ently concludecl narional seminar. organised by SIMA on

Mr I N Singh Tqtile Commissioner, Government oi !ndiainaLguraieci the Premier staLl. Speaking o. the occasion, MrSriclhar Vara.laraj, Manag ng Director. Premie. Evolvics said.'Piemier has always focusecl on solving ihe qualiiy p.oblems

faced by ihe mills. We have done that by bujlding inteLligeriihe sidelines of dre Tex Spares2006 exhibiiior in Coimbalorc.

Delivering rhe lecrure, Mr 5CokuLakrishnan. senior iextilemnnafier ci!ed vaious case siucliesfode by Prenrier in undeELrnding.tn.i applyine the above$.amerers He also broughtio theroii.c of ovcr lOOfclcgatcs that:rc!c pakunclcrsa.c avajiablc in

-epopular. geof Premieisrlbre::c \?in resling eq uipment.

::emier also .einfo.ced the:-_-.e:r or lnsineered QualiB/ (lQ), :- :r.!ses on ihe optimum-:::' ..d use.l based quality

quality testing and monitoringmachines. This has beencomplemented with on groundinitiaiives like appll.ationclevelopnent. reference casestudies. customised t.aining anciDnovative ways of post salesservice, like the Dr Q-interneibaseclseruice prosram.

Our €ffort js to conlinuousl)innovate ancl bring about pracncnl

easy ro implemeni soiuiions io.

Premier also.lisplayecl thenew improvecl Xeni the

and cost ol pro.lucing'. --- .l

:_:-:s_:lso showc.sed an aray olqualig' solurions atihe-., :r.f= lao{r dhibinon

contaminarion detector in the Blow Room. The cenrra.afta.tion w6 the IQON the ultifrate forelgD fibe clearer ALson .lisplay was the popuiar lQ Qualicentre- the full feaiure

Asian Texlile Journal . September 2006 .88