39263876 Chemical Used in Textile

8/18/2019 39263876 Chemical Used in Textile

1/31

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2/31


3/31

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


4/31

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

%


5/31


6/31


7/31

HIet:dyeing8

Particularly

suitable in

$inishingliBuors 6ith

or 6ithout

/igments8

A*%%A5%

AS 55:5C

*4% PC

%


8/31

/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$


9/31


10/31

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


11/31

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


12/31

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


13/31

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


14/31

/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


15/31

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;


16/31

/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


17/31

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


18/31


19/31

$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


20/31

'%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

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21/31

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


22/31

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


23/31

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


24/31

Sando/on S %iB 1 gramKliter

%yocol 35 08? gramKliter


c8 Metho4/ F$

I Soa7ing$

Reci7e$

Cyclanon (:C> 54> 2 gramKliter

%yocol 35 1 gramKliter


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


25/31

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$


26/31

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


27/31

• 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


28/31

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


29/31

• 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

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30/31

'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

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(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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31/31

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

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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

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5ext Page V

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39263876 Chemical Used in Textile

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