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8/12/2019 Aquasorb OZ--Antiozonates softner for denim fabrics.
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http://www.powerpointstyles.com/http://www.powerpointstyles.com/http://www.powerpointstyles.com/http://www.powerpointstyles.com/8/12/2019 Aquasorb OZ--Antiozonates softner for denim fabrics.
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Over the past two three decades the
problem of yellowing of textiles has
become progressively more
widespread.
It would be wrong to regard
yellowing as a phenomenon arising
from a single cause.
There are more than 20 differentways in which white or pale-coloured
textiles can undergo this undesirable
change in appearance.
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The critical factors identified are:Access to hindered phenol
Access to air and NOxpHAuxiliariesMoisture
PackagingIn the case of indigo-dyed textiles there is the risk of the dyestuff
being destroyed due to environental influences! "his irreversible
destruction of the dyestuff is caused# aongst others# by an
interaction of ultraviolet radiation# o$one % nitrogen oxide
-&photocheical sog'! Ho(ever# noxious gases ay effect a
destruction of the dyestuff even (ithout ultraviolet radiation being
involved! "he degradation products of the indigo are usually
yello() therefore (e also speak of yello(ing during storage of the
indigo!
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The critical factors identified are:
"his phenoenon is# for instance# observed (hen looking at
the folded edges of ade-up *eans!
In a pile of folded *eans# the folded edges are particularly
affected since they are especially exposed to light % air!
"he interior of the pile is protected against
detriental influences by its relative
inaccessibility!
+ue to the extree ring dyeing of the (arp
yarn# the indigo dyestuff situated on the surface
is highly accessible to noxious gases# such as
NOx
and O,
!
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TT!"I#$ $%#T&
O'one O(:
O$one is the strongest oxidi$ing agent after fluorine! Inorganic cheistry it serves to detect - double bonds!
"he general bleaching effect of o$one on indigo is (ell-
kno(n! "herefore the indigo dyestuff is also used as an
indicator dyestuff in detection systes .e!g! +rager/
(hich serve to easure the o$one concentration!
#itrogen oxides #ox:
Nitrogen oxides are also referred to as &nitrous gases'!
Nitrogen oxides are ainly coposed on nitrogen
onoxide % nitrogen dioxide! "hey are kno(n to be
highly aggressive agents!
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)*O+,%& !&%/ O#$&T OT1%*& +
#O3IO& $&%& :
0ello(ing of optical brighteners due to nitrogen oxides 1
o$one!
+estruction of natural rubber by o$one
hanges of shade caused by nitrogen oxides
0ello(ing of polyurethane fibres due to nitrogen oxides
% sulphur dioxide
/estruction of indigo by o'one and nitrogen
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!O#T%* - %&*%&
2torage of the textiles in a controlled environent!
Optiu ventilation of the store roos .circulating
air/! Nox is heavier than air and accuulates on the
ground!
Packing e!g! in polyethylene foil that does not contain
any igrating# light-inhibiting stabili$ers!
+o not expose goods to sunlight!
)rotective finishing with
4&O*+-O5 6 )owersil-#O5
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%!1#I& O7 %,,O8I#$ O7 I#/I$O-/%/ T%3TI,%& /% TO I*
)O,,T#T& &!1 & O5O#% 6 #IT*O$%# O3I/%&
3ltraviolet radiation 9 o$one O( nitrogen oxides #ox!
2hort (avelength portion partly fored
of the sunlight by 34 % Nox e!g! fro the cobustion of fossil fuels
photocheical sog
foration of aggressive radicals
5adical attack against the double-bonded# con*ugated indigo syste
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H
H
Indigo
6oration of peroxide % other radicals destruction of the - double bond foration of
ostly yello( degradation products are
N
!OO1
HH
N
O
O
Phenylglycine
.olourless/
Isatine
.0ello(/
N
NO
O
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It is a coplex aido aine phosphate used to protect indigodyed fabrics and garents against o$one % NOx fading !
7conoical % 7co-friendly!
Hybrid silicone iparts preiu softness Iparts preiu softness! 2oftening better than conventional
aino silicone eulsion
Protects indigo dyed fabrics and garents fro O$one andNOx fading
7nhances colour depth 7co friendly
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O77I!% //*%&& :-89,# &Antariksh'# Mak(ana 5oad#
Marol Naka#
Andheri .7/# Mubai 899 9;