39263876 Chemical Used in Textile
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TheSmartTime
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DEMINERAI!A"I#N$
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
%U%
*S3
AS *(TU4
3SP4S5"A53
C*P%4(5"
SUSTA5C4S
4xtracting
anddis/ersing
agent 6ith
stabilizing
andanticatalytic
e$$ect in the
al7aline
/eroxide bleach8
m/ro9es the
degree o$6hiteness and
absorbency8
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5'AT4(
AC
)U5TS*A5 Anionic Pre/aration
based on s/ecial
organic acids 8
5'AT4( :
AC crac7ing
agent is
easily
miscible 6ith6ater in all
/ro/ortionsand can be
used;
diluted as
6ell asundiluted; $or
automatic
dosing
systems8
S( 5
%
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HIet:dyeing8
Particularly
suitable in
$inishingliBuors 6ith
or 6ithout
/igments8
A*%%A5%
AS 55:5C
*4% PC
%
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/olyester
$ibers; yarn
and $abric8
*4% S C%AA5T An e$$icient
scouring and
stainextractingagent $or
cellulosic;
/olyester andtheir blends in
7nitted and
6o9en $orm8
MERCERISIN+ A+EN"S$
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
P4*5A%*A SP%
C C3A A55C 55:C#S4%C
>4TT5"
A"45T
%o6:$oaming;
highly al7ali
stable;noncresylic
merceri,ing
-ettingagent $or
cotton8
*4C4%
5
C%AA5T A55C 55:
C#S4%C>4TT5"
A"45T
An e$$ecti9e;
high acti9e;cresol:$ree;
lo6 $oaming
6etting agent$or
mercerization
o$ cotton and
cellulosic blends in
yarn; 6o9en
and 7nitted$orm8
D.E/%A"( C#NDI"I#NERS$
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and
dis/ersing
/ro/erties $ordyeing 6ith
reacti9e dyes8
34% S5 54>
AS Acrylateco/olymer;sodium salt in
6ater8
Pum/abledis/ersingagent;
/rotecti9e
colloid andcom/lexing
agent $or all
stages in the
dyeing o$textiles o$
cotton andcotton blends
SE0'ES"ERIN+1DIS&ERSIN+1S#A&IN+ A+EN"S$
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
*4TA(%A3> C HC3A A55C S3U*SA%T
P%#AC%#
C AC3
/o6er$uldis/ersing
agent to
remo9eun$ixed and
hydrolysis
reacti9e dye
and side byside acts a
chelating
agent alsoH it
6or7 as a /rotecti9e
colloid $orelimination o$
/roblem
caused by
rede/osit iono$ insoluble
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calcium and
magnesium
salt 6ithoutany
demetalizing
e$$ect ondyestu$$ 8it is
also good
6ashing o$$
agent $orreacti9e
dyeing
34% S5 AS
SA53PU S %<
C%AA5T Sando/urS %iBuid
Conc8 is the
no9el6ashing
o$$ agent
6hich is 9ery
e$$icient inthe 6ashing
o$ hydrolyzed
reacti9e dyes8
t im/ro9es
the hard
6ater stability
o$ sensiti9e
dyes8 tdoesnLt $oam;
there$ore it is
suitable $or IetsKso$t $lo6
machines8
t is AP4
$ree andeco$riendly
/roduct8
CAP5 )U5TS*A5 A55C *odi$ied
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Polyacrylic
Acid Sodium
Salt in >ater
A%AT4(
A3
)U5TS*A5 Anionic Sodium salt o$ a
/olyacrylic acid
)ighly
e$$icient
dis/ersant $or
insoluble ands/aringly
soluble
calcium salts;
/ectins andother
im/urities
such as cottonlinters83issol9es
hydrolysed
dyes duringsoa/ing8
%A3
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MAR)E"
%SSP%
3 PAST4
C C3A A55C C)%SU%P)5
AT43 ATT#A%C)%S
P>4
U%34T4"4
5T A53
>4TT5"A"45TC**5%
# US43
SAP5"8
SA53PU
S %<
C%AA5T Sando/ur
S %iBuid
Conc8 is theno9el
6ashing
o$$ agent
6hich is9ery
e$$icient in
the 6ashing
o$
hydrolyzed
reacti9e
dyes8 t
im/ro9es thehard
6ater
stability o$sensiti9e
dyes8 t
doesnLt$oam;
there$ore it
is suitable$or IetsKso$t$lo6
machines8
t is AP4
$ree andeco$riendly
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/roduct8
A%AT4(
3S C5C
)U5S*A5 Anionic Sodium salt o$ a
/olyacrylic acid
m/ro9es the
Buality and
re/roducibility o$9irtually
e9ery textile;
6et /rocess8
>ashing o$$
agent $or
reacti9e
dyeings and /rints on
cellulosic$ibers8
CAP5
)U5TS*A5 A55C *odi$ied PolyacrylicAcid Sodium Salt in
>ater
*4TA(%
A3>
C C3A A55C S3U* SA%T
P%#AC%#C AC3
/o6er$ul
dis/ersingagent to
remo9e
un$ixed andhydrolysis
reacti9e dye
and side byside acts a
chelating
agent alsoH it6or7 as a
/rotecti9e
colloid $or
eliminationo$ /roblem
caused by
rede/osit iono$ insoluble
calcium and
magnesiumsalt 6ithout
any
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demetalizing
e$$ect on
dyestu$$ 8itis also good
6ashing o$$
agent $orreacti9e
dyeing
S"AIN REM#2ERS$
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
AST% A C C3A Stain
remo9ingagent to
remo9e oil
borne stains$rom textiles8
*4%
(5
C%AA5T A 9ersatile
/roduct $or
one bathscouring and
bleaching o$
cotton 6o9enand hosiery
$abric;
scouring aid
$or 6ool ands/ecialty
/roduct $or
combinedscouring and
dyeing o$
/olyester
$ibers; yarnand $abric8
*4A%
S
C%AA5T An e$$icient
scouring andstain
extracting
agent $orcellulosic;
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/olyester and
their blends in
7nitted and6o9en $orm8
(.DR#+EN &ER#3IDE S"A%II!ERS$
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
STA%=4
A>5
C%AA5T 4conomical;
eco:$riendly;
e$$ecti9ePeroxide
Stabilizer8
T5C%A
T4 C
)U5TS*A5 5on silicate
stabilizer $oruse in
/eroxide cold
/ad:batch; /ad:steam
bleaching
6ithoutsilicate as
6ell as the
al7alinediscontinuous
long liBuor
/eroxide
bleach /rocess8
CA"I#NIC D.E *I3IN+ A+EN"S$
%ES"
&R#D'C"S
IN "(EMAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
SA53(
>4
C%AA5T Cationic CAT5C
3#4 (5"A"45T
(5%
P5
C C3A Cationic CAT5C
CST
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4C45T
3#4 (4
CA"I#NIC *#RMADE(.DE *REE D.E *I3IN+ A+EN"S$
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I#
N
S&ECI*IC
&R#&ER"I
ES
T5(
4C
)U5TS*A5 Cationic A
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$resher
$or long
during
6earing and6ashing o$
the
garment
N 'ery high
degree o$exhaustion N
4xcellent
/roduct
e$$iciency
N %o6 6aste
6ater
contamination
N Product can
be used e9en
$orm long
liBuor ratio
CAS%CS
C CAT5C
ANI#NIC S#*"ENERS
%ES"
&R#D'C"S
IN "(E
MAR)E"
MAN'*AC"'R
ER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"I
ES
%US%
(%)>
C A55C
SIIC#NE S#*"NERS
4STP3UCTS
5 T)4
*A4T
*A5UACTU4
5C 5ATU4
C)4*CA%C*PST
5
SP4CCPP4T4
S
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'%RICA"IN+ A+EN"S
%ES"
&R#D'C
"S IN
"(E
MAR)E"
MAN'*AC"'
RER
I#NIC
NA"'RE
C(EMICA
C#MSI"I
#N
S&ECI*IC
&R#&ER"IES
3e/solube
ACS
C A55C %>A*
PC4SSAT) AN"ICREASIN+ %UCA5T
A53 4*U%S48
Comments H0
(o- to i4enti5y the 5ibers in a blen4e4 5abric?
Posted by thesmarttime + Textile Processing + Saturday 2. August 2010 1-02 /m
Intro4uction
HmoreO
Comments H0
&olyester getting tinte4 -hile 4yeing Reactive "ur6uoise
%lue combination o5 a 7oly1cot blen4e4 knit 5abric8 (o- to
4ye -ithout tint?
Posted by thesmarttime + dyeing + Saturday ,0 January 2010 ?-1, /m
"i9en belo6 may be the best route $or /rocessing a 7nit /oly:cot blend-
&retreatment$
18 Wetting o55$
Reci7e$
>etting agent H5o $oaming 08?G
Treat Q M0FC $or 10 minutes8
http://www.thesmarttime.com/blog/?p=101#respondhttp://www.thesmarttime.com/blog/?p=96http://www.thesmarttime.com/blog/?cat=5http://www.thesmarttime.com/blog/?p=96#more-96http://www.thesmarttime.com/blog/?p=96#respondhttp://www.thesmarttime.com/blog/?p=95http://www.thesmarttime.com/blog/?p=95http://www.thesmarttime.com/blog/?p=95http://www.thesmarttime.com/blog/?cat=3http://www.thesmarttime.com/blog/?p=101#respondhttp://www.thesmarttime.com/blog/?p=96http://www.thesmarttime.com/blog/?cat=5http://www.thesmarttime.com/blog/?p=96#more-96http://www.thesmarttime.com/blog/?p=96#respondhttp://www.thesmarttime.com/blog/?p=95http://www.thesmarttime.com/blog/?p=95http://www.thesmarttime.com/blog/?p=95http://www.thesmarttime.com/blog/?cat=3
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3rain8
28 Scouring 9 %leaching$
a8 Reci7e$
i8 Soda Ash 08?G
ii8 Caustic Soda 08MG
iii8 5on $oaming detergent 08?G
i98 Peroxide Stabilizer 08?G
98 )ydrogen PeroxideH?0G 18?G
18 Q .?FC $or 1 hour8
28 3rain and do cold 6ash
,8 Neutrali,ation$
a8 Reci7e$
i8 Acetic Acid 1 mlKliter
18 Treat Q cold $or 10 minutes8
28 >ash cold 10 minutes
,8 Chec7 /) and let it be E
:8 (eat Setting$
a8 3o heat:setting in a stenter Q 200FC $or ,0 seconds Hs/lit o/en 6ith ,G o9er$eed on /ins at
1? metersKminute s/eed8
;8 Mercerising$
a8 Reci7e$
i8 Caustic lye ?0FT>
ii8 Permenol 5 10 mlKliter H*ercerizing >etting Agent
>ash $ree $rom residual al7ali
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a8 Reci7e$
i8 %yogen P4S 180 gKl H3is/ersing & %e9eling Agent
ii8 Acetic Acid 180 gKl
18 un Q ?0FC $or 10 minutes
iii8 Add dissol9ed dyestu$$ Q ?0FC and run 10 minutes
i98 aise the tem/erature $rom ?0 to 11?FC Q 2FKminute R ,0 minutes
98 aise the tem/erature $rom 11? to 1,?FC Q 08?FCKminute R @0 minutes
9i8 Cool to .0FC and drain
8 Re4uction Clearing =R8C8>$
a8 Reci7e$
i8 Cyclanon 4C 2 gramsKliter Heduction Clearing Agent $rom AS
ii8 Acetic Acid 2 gramsKliter
18 Treat at .0FC $or 10 minutes
28 >ash cold
@8 Reactive Dyeing$
a8 Set /) to E by addition adeBuate Buantity o$ Acetic acid H may be u/ to 08, to 08? ccKliter
b8 Cot$ix TurB lue )2"P ,80G
c8 Cot$ix #ello6 *4@"% 180G
d8 "lauberLs Salt .0 gramsKliter
e8 Soda Ash 20 gramsKliter
i8 3ye using S/ecial TurBuoise lue 3yeing *ethod
a8 Cot$ix TurB lue )2"P ,80G
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b8 Cot$ix #ello6 *4@"% 180G
c8 "lauberLs salt .0 gramsKliter
d8 Soda Ash 10 gramsKliter
e8 Caustic Soda la7es 28M? gramsKliter
Dye using the S7ecial "ur6uoise %lue &recon4itioning Metho4$
8 Neutrali,e$
Acetic Acid 28? gramsKliter Hinstead o$ 1 gKl
B8 Soa7ing$
a8 Metho4 /B$
I Soa7ing$
Reci7e$
%isso/ol 3 /aste 2 gramsKliter Q .0FC $or 20 minutes8
II Soa7ing$
Reci7e$
%isso/ol 3 /aste 1 gramKliter Q .0FC $or 20 minutes8
b8 Metho4 $
I Soa7ing-
Reci7e$
Sando/on S %iB 2 gramsKliter
%yocol 35 1 gramKliter Hdis/ersing agent $or 3is/erse dyes R used here $or better soa/ing
Q .0FC $or 20 minutes8
II Soa7ing$
Reci7e$
http://www.thesmarttime.com/faq/turquoise-blue-dyeing-procedure.htmlhttp://www.thesmarttime.com/faq/turquoise-blue-dyeing-procedure.html
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Sando/on S %iB 1 gramKliter
%yocol 35 08? gramKliter
Q .0FC $or 20 minutes8
c8 Metho4/ F$
I Soa7ing$
Reci7e$
Cyclanon (:C> 54> 2 gramKliter
%yocol 35 1 gramKliter
Q .0FC $or 20 minutes8
II Soa7ing$
Reci7e$
Cyclanon (:C> 54> 1 gramKliter
%yocol 35 08? gramKliter
Q .0FC $or 20 minutes
(ot Wash
Col4 Wash
BB8 Acetic Aci4 treatment$
Acetic Acid 08? ccKliter
B8 I5 necessary use *ormal4ehy4e 5ree Cationic 5ixing treatment8
a8 Sa/amine C 1G
b8 Cationic ixing 1G
i8 Q Cold treat $or ,0 minutes8
ii8 >ash cold
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iii8 3rain & unload the batch8
Note$
$ a dose o$ 08, ccKliter o$ Acetic acid is incor/orated in the soa/ing bath; the staining o$ reacti9e
dyes on /olyester during soa/ing may be com/letely a9oided8 Soa/ing bath /) should be ? to E8
A $inal 6ash a$ter Soa/ing 6ith 1 gramKliter o$ Acetic Acid or 08? gramKliter o$ ormic acid and
maintaining a /) ? toE during drying 6ould a9oid tinting o$ reacti9e dyes by migration in to
/olyester8
49en a$ter ta7ing all /recautions; i$ the /olyester /art still gets stained; treat the tinted $abric6ith-
Acetic Acid 2gramsKliter
Alcos/erse A3 2 gramsKliter
Ciba/on liB 2 gramsKliter
At .0FC $or ,0 minutesD this 6ould remo9e the stains $rom the /olyester8
Summary-
18 n /re/aration no residual chemicals o$ the /retreatment should remain on the $abric8 The 3$abric should be chec7ed $or a /) o$ E at the end o$ /retreatment and be$ore dyeing8
28 The /) should be E at the beginning o$ reacti9e dyeing8
,8 A$ter dyeing is o9er; neutralization 6ith Acetic acid should be done and chec7 the /) to E8
@8 4nsure su$$icient hot 6ash to reduce the electrolyte Hsalt concentration to a minimum o$ 1 gKl
be$ore soa/ing; other6ise im/er$ect soa/ing 6ould be done8
?8 3uring soa/ing maintain a /) o$ E to a9oid staining o$ /olyester8
E8 The soa/ing tem/erature should be maintained strictly at .0FC8 *ore than this 6ould o/en the
/olyester $iber and create a tendency $or un$ixed reacti9e dye to enter into /olyester $iber as
stain8
M8 The $inal /) should be E be$ore drying and it may be controlled by using 08? ccKliter o$ ormicAcid8
Notes on Resin 5inishing$
Reci7e$
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esin 'S @? gKliter
P' Acetate 2? gKliter
P'A 2? gKliter
P4 20 gKliter
Acetic Acid 1 ccKliter
Pad 2 di/ 2 ni/ R /ressure ,? 7gsKsBcm8 R s/eed 2? mtrsKminute and tem/erature R 1M0FC R 5oo9er $eed8
Comments H0
&ackage 4yeing o5 yarn -ith (E 4yestu55s
Posted by thesmarttime + dyeing + Sunday 1M January 2010 !-2! /m
• Start 3yeing Q?0FCD ensure the starting bath /) be ED adIust 6ith Acetic Acid i$
necessary8
• Add salt H9acuum or "lauberLs salt and hold $or 1? minutes
• Add the 9olume o$ dissol9ed and $iltered dyestu$$ and hold 10 minutes8
• Add the 9olume o$ dissol9ed and $iltered dyestu$$ and hold 10 minutes8
• aise the tem/erature Q2FCKminute to .0FC and hold $or 20 minutes8
• Add al7ali HSoda ash and hold 2? minutes8
• Add al7ali HSoda ash and hold $or ,0 minutes8
• Chec7 sam/le
http://www.thesmarttime.com/blog/?p=95#respondhttp://www.thesmarttime.com/blog/?p=94http://www.thesmarttime.com/blog/?cat=3http://www.thesmarttime.com/blog/?p=95#respondhttp://www.thesmarttime.com/blog/?p=94http://www.thesmarttime.com/blog/?cat=3
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• 3rain
• Cold 6ash H10 10 minutes
• 5eutralize Q @0FC 6ith adeBuate Bty o$ Acetic acid8
• Cold 6ash R 10 minutes
• )ot >ash Q M0FC H2FCKminute R 10 minutes
• Soa/ Q !?FC R 1? minutes H1st soa/
• Soa/ Q !?FC R 1? minutes H2nd soa/
• Soa/ Q !?FC R 1? minutes H,rd soa/
• )ot >ash
• Sam/le chec7 $or shade and 6ash $astness
• Cold 6ash H10 10 minutes
• Acid 6ash 6ith 1 g/l o$ acetic acid
• n the same acid bath R cationic so$tener treatment R 20 minutes
• Chec7 /) R E
• Unload8
Comments H0
Cotton/Nylon 5abric1yarn 4yeing
Posted by thesmarttime + dyeing + Sunday 1M January 2010 !-1@ /m
http://www.thesmarttime.com/blog/?p=94#respondhttp://www.thesmarttime.com/blog/?p=93http://www.thesmarttime.com/blog/?cat=3http://www.thesmarttime.com/blog/?p=94#respondhttp://www.thesmarttime.com/blog/?p=93http://www.thesmarttime.com/blog/?cat=3
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Cotton and 5ylon blended $abrics may be dyed using the abo9e /rocess diagram8 *achinery-
HCheese dyeing machine or So$t:$lo6 machine
• Set the dye bath 6ith18? to 28? g/l acetic acid at room tem/erature8
• Add the total Buantity o$ "lauberLs salt $or reacti9e dyeing in t6o /ortions8 This 6ill$unction li7e a le9eling agent $or acid dyeing8
• Add the dyestu$$ mixture o$ acid and reacti9e dyes in t6o /ortions8
• aise the tem/erature to .0FC Q 1FKminute8
• )old at .0FC $or ,0 to @? minutes according to the reci/eKde/th o$ nylon dyes Hacid
dyes8
• Then chec7 the shade $or nylon /ortion by carbonizing the cellulose in M0G Sul/huric
acid8
• $ not o7; ma7e reBuired additions and continue dyeing other6ise reduce the tem/erature
to E0FC Q 2FKminute8
• At E0FC add al7ali in t6o /ortions as mentioned abo9e8 Chec7 /)8 t should be 108. to
11828
• Continue dyeing $or @? to !0 minutes according to de/th8
• 3ro/ the bath8
• Cold 6ash t6ice $or 10 minutes each8
• 5eutralize 6ith 1g/l o$ acetic acid at @0FC R 3rain8
• )ot 6ash at M0FC R 10 minutes8
• : Soa/ing 6ith Sando/ur S %iB R 2 g/l at !0FC
•
R Soa/ing 6ith Sando/ur S %iB R 1 g/l at !0FC
• )ot 6ash at M0FC
• Cold 6ash R t6ice $or 10 minutes each8
• Acid 6ash 6ith 1 g/l acetic acid at cold8
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• Unload or ta7e it $or $inishing8
e6 suggestions $or continuous dyeing are-
18 Continuous 3yeing o$ 5ylon and cotton blends may be done using dis/erse and reacti9e
dyes in the same 6ay 6e do $or /olyester and cotton8 Thermosolling may be done at .0 to!0FC instead o$ 1,? to 1?0FC8 A bottlenec7 6ith dis/erse dyeing is; you can /roduce only
light and medium shades only8 >ith dis/erse dyestu$$ you may not get /ro/er yield and
6ashing $astness8
28 >ith Clariant there is a dyestu$$ called orosolsL that can be used $or dyeing both cottonand /olyester $or solid shades8 #ou can ma7e a lab trial in consultation 6ith Clariant
/eo/le and then $inalize your /rocess $or continuous dyeing8
Comments H0
+ui4e to Select the Right *iber 5or the Right &ro4uct
Posted by thesmarttime + Uncategorized + >ednesday 1, January 2010 !-0. /m
ne o$ the most im/ortant as/ects o$ a textile /roduct is the $abric8 There are a number o$ criteria
u/on 6hich the $abric selection is based8 n the 6orld o$ $ashion; color; texture and /attern are
/aramount8 )o6e9er; less a//arent but eBually im/ortant is $iber ty/e8 ibers ha9e s/eci$ic /ro/erties that can in$luence the /er$ormance and com$ort o$ a garment8 n order to /roduce a
/roduct 6ith the desired characteristics; the a//ro/riate $iber must be selected8 HmoreO
Comments H0
What are the bene5its o5 (ot Merceri,ation?
Posted by Thesmarttime + Cotton Pretreatment; Textile Processing + riday 2, ctober 200!
10-,2 /m
Short an4 hot G
3uring hot im/regnation the lye /enetrates $aster and more e9enly into the yarn core8 S6ellingthere$ore does not ta7e /lace only on the $abric sur$ace8 As Com/ared 6ith cold im/regnation the
s6elling beha9ior is considerably better and has a /ositi9e in$luence on the dimensional stability8The more uni$orm s6elling gi9es; 6ith dyed goods; a more eBual a//earance8 >ith the 6et:on:
6et method the exchange $actor is increased thus /ermitting a shorter im/regnation zone than6ith con9entional /rocesses8 n addition; the lye 9olume is 7e/t 9ery lo68 The lye concentration
is sim/le to control8 The lye bath has been 7e/t /ur/osely small and under it there is one single
lye tan7 integrated into the machine8 HmoreO
Comments H0
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'se5ul (ints on Reactive Dyeing
Posted by thesmarttime + Cellulose & its blend dyeing; Textile Processing + Thursday 22 ctober
200! @-,? /m
+eneral$
• Since sodium sul/hate generates less sodium ion 6ith res/ect to 5aC%; cotton sur$ace
becomes less substanti9e; that is /recondition $or light shades8 So sodium sul/hate is
/re$erredD
o :%ight shades
o :lue 1! and lue 21
o :'iscose $iber
o n case lo6 bath ratio and high circulation dyeing machines; electrolyte
concentration should be decreased8
o $ bath ratio is increased; e8g8 in sam/le dye units; salt amount should be
increased8
o A$ter the addition o$ salt and dye; at least @0 min8 should be ela/sed; to obtain
/er$ect dye distribution and migration8
o n case o$ high bicarbonate content o$ /rocess 6ater; $inal /) is around 10;2:10;@6hich is 9ery lo6 $or good $ixation and shade re/eatability8 /timum /) should
be around 10;.:11;28 A$ter soda addition; a$ter 1? min8; 1:, gKlt 5a) is su//lied
in 1? min8 and /rocessed 1? min8 more8 HmoreO
Comments H,
(o- to im7rove the tear an4 tensile strength o5 a 5abric?
Posted by thesmarttime + Cotton Pretreatment; Textile Processing + Thursday 22 ctober 200!
11-21 am
18 (o- to im7rove the tear an4 tensile strength o5 the 5abric?
18 i8 There are many reasons $or the loss o$ tensile and tear strength8 ight $rom
singeing; i$ the intensity and height o$ the $lame is higher than the reBuiredD the
$abric is li7ely to be scorched8 To a9ert this; 9arious s/eeds ranging $rom M0; .0;
!0 meterKminute are to be tried in singeing and the e$$iciency can be ascertained by /illing test o9er s/eci$ied measurements H10 x 10 sB8in8
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28 ii8 4xcessi9e emerizing may lead to strength loss8
,8 iii8 esin $inishing H$or 3P 9alue - A loss o$ 20 /er cent $abric strength is
una9oidable i$ the chemicals a$ter a//lication and curing are not /ro/erly 6ashed by suitable al7ali treatment H2 g/l soda ash in cold 6ater and then 6ashing etc88
>e also suggested a suitable reci/e $or obtaining a better 3P 9alue onn their$abric8 HmoreO
Comments H2
Right &roce4ure 5or 4yeing "ur6uoise %lue + on 2iscose
rayon substrate
Posted by thesmarttime + Cellulose & its blend dyeing; Textile Processing; Uncategorized +
>ednesday 21 ctober 200! !-?? /m
Some general characters o5 viscose 5iber$
• 'iscose has lo6er tenacity than cotton 6hen itLs dry and 6et8 S more care should be
ta7en in 6et /rocessing o$ the $abric or yarn made o$ 9iscose $iber to /re9ent $abric tears
and brea7ages8 t has more elongation in 6et and conditioned state than cotton $iber8
• oth 9iscose and modal are being su//lied by the manu$acturers almost in /ure state and
mostly do not need any bleaching o/eration $or dar7 and medium shades8 )o6e9er
9iscose cotton blends need some mild bleaching be$ore dyeing8
• The 6ater retention 9alue Hs6elling index is more than cotton and modal $ibers8 t s6ells6ithin 10 seconds 6hen immersed in 6ater e9en at lo6er tem/eratures8 t is to be notedthat the $abric acBuires sti$$ness 6hen it is 6et because o$ the high s6elling that ma7es
the $abric com/act and hence sti$$8 HmoreO
Comments H1
5ext Page V
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