lafer liquid ammonia process plant
TRANSCRIPT
Improving cotton fabrics'
performance, softness and aesthetics
with
No environmental impact
A possible solution.....
Liquid Ammonia Process
for cellulose based fabrics
denim, shirtings, sportwear
Liquid ammonia process enhances:
Stretch
Strength and abrasion resistance
Looking good all day
Fabric durability
Comfort through added softness
Wrinkle resistance
Better appearance with vintage washes, reduced fluffiness, smooth and clear visuality
Sustainability
Impregnation
in liquid ammonia
Ammonia
evaporationDeodorization
by steamDry fabric in Dry fabric out
98%
Am
mo
nia
is r
ecycle
d
Pu
re a
mm
onia
recovere
d+
coole
d
Converted to
ammonium hydroxide
Converted to
ammonium sulphate
Process flow
2% ammonia is
neutralized
No washing needed
Residual 2% ammonia is:
By-products can be used for other purposes
or sent to effluent treatment plant
NO POLLUTION
1st stage converts NH3 to ammonium hydroxide
2nd stage converts NH3 residue in ammonium sulphate
98% of ammonia can be recovered and recycled
Neutralized in two-stage scrubbing towers
preparation stage of ready-for-dye fabrics
finishing stage of yarn and fabric dyed articles and denim
Can be used in 2 ways:
Special dynamic seals
ENSURE
High rate of recovery and recycling of pure ammonia
maximum safety
PREVENT
exit of ammonia
entry of air and moisture in the process chamber
No washing required after process
Absolutely no residual odor of ammonia
Huge water savings
vs conventional mercerizing
Lafer Liquid Ammonia Process
Water consumption: only 6 m3/hr
Less finishing chemicals required
< Wrinkle resistance properties are created
so less resins required leading to added strength
< Color contrasts on denim after garment wash
so less finishing resins needed
< Liquid Ammonia treated fabrics
are softer and with better appearance
meaning less cost in both fabric and garment stages
< Less environmental impact not only in the fabric stage
but also in the garment finishing
Contact us for more details at: [email protected]