Lafer liquid ammonia process plant

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: ideas@laferspa.com