Plasma Treatment Technology for Surface Modification …
281
Table 1
Some potential applications of non-thermal atmospheric plasma for eco-friendly pretreatment of cellulosic fabrics
Plasma type
Working gas
Cellulosic
substrate
Main task
Positive impacts
References
DBD
Air
Grey cotton
fabric
Upgrading surface properties
• Removal of various impurities
which in turn positively affects
the subsequent bleaching and
dyeing processes along with
reduction in chemical and energy
consumption
[33]
DBD
Air/argon
Grey cotton
fabric
• Enhancing wettability as well as
modification and
functionalization of the treated
fibers surfaces via removal of
impurities, etchings as well as
generation of new functional
groups as –COOH, –OH … etc.
[34]
APPJ
Helium/oxygen
Grey cotton
fabric
• Improving treated substrate
wettability as a direct
consequence of etching,
de-waxing and creation of new
active sites
[35]
DBD
Helium/air
Grey cotton
fabric
Pretreatment—desizing/scouring • Enhancing wettability and
desizability of the used sizing
agent via etching and introducing
new functional groups
[36]
APGD
Air/O
2 /He and air/He
Cotton sized
with polyvinyl
alcohol
Desizing
• Facilitate the removal of
PVS-size with cold after-wash
• A remarkable desizing treatment
is achieved by using O
2 -plasma
[37]
(continued)