Engr. Kazi Zakaria Ahmed
M.Sc. in Applied Chemistry & Chemical Technology (IU)
B.Sc. in Textile Engineering (DU)
Lecturer, Department of Garments & Textile Engineering
BCMC COLLEGE OF ENGINEERING & TECHNOLOGY
Jessore-7400, Bangladesh
E-mail: iamzakdude@gmail.com
RECIPE AT DIFFERENT STAGES IN DYEING COTTON FABRIC:
PRETREATMENT
Ingredient
Quantity
Wetting agent (Sun Mori CK-1)
0.5 g/l
Anti creasing agent (Texport D – 600)
1.3 g/l
Sequestering agent (Sirrix-SQ)
0.5 g/l
Caustic
3 g/l
Stabilizer (Neorate PH-100 )
1 g/l
Hydrogen per oxide (H2O2)
3.5 g/l
Peroxide killer(Crocks-N)
1 g/l
Neutralization
Acetic acid
1 g/l
Enzyme treatment
Acetic acid
0.3 g/l
Bio –polish EC
1 g/l
Dyeing
Acetic acid for leveling agent
0.3 g/l
Levelling agent (Neocrystal EDX/200B)
1 g/l
Anti creasing agent (Texport D – 600)
1.5 g/l
Dyes
Salt
40% owf
Soda
15% owf
After Treatment
Fixing agent (Neofix ECO/Cibafix FRD)
0.5 g/l
Soaping agent(Lipotol PS-60)
0.8 g/l
Acetic acid
1 g/l
SOFTENING
Acetic acid
0.2 g/l
Softener( Perrostol CWS)
1 g/l
Table No-1: Recipe at different stages in cotton dyeing.
RECIPE FOR MACHINE WASH:
Ingredient
Amount
Detergent (Solax)
0.5 gm/L
Caustic
1 gm/L
Hydrous
2 gm/L
Table No- 2: Recipe for m/c wash.
Different parameters in DYEING:
A. pH
During peroxide bleaching & scouring
9-11
During enzyme treatment
4.5-5
Before addition of leveling agent
6-6.5
Before addition of color softener(Perrustol IMA-500)
6-6.5
Before addition of white softener(Perrustol VNO-500)
Process of Polyester/Cotton (p/C) Blends Fabric Dyeing:
In blends fabric dyeing, at first the Polyester Part dyeing same as Polyester Dyeing.
Then the Cotton Part dyeing same as Cotton Dyeing.
Dyeing Procedure of polyester fabrics with Curve:
Required amount of water filled
↓
Fabric was loaded and run for 10 min.
↓
Drain
↓
Required amount of water filled
↓
CK-2 and oxalic acid was added for 5 min.
↓
Run for 20 min. at 80˚C
↓
Rinse for 15 min.
↓
Drain
↓
Required amount of water filled
↓
Formic acid added for PH- controlled
↓
Check PH at 4.5
↓
Leveling agent (DIF) added for 10 min.
↓
Temperature increase at 60˚C
↓
Color/Dyes added for 15 min.
↓
Run for 10 minutes
↓
Temperature increases at 130˚C for 30 min.
↓
Run for 30 minutes
↓
Cooling at 80˚C
↓
Shade check
↓
Rinsing for 15 min.
↓
Drain
↓
Required amount of water filled
↓
Hot wash at 80˚C
↓
Shade check
↓
Rinsing for 15 min.
↓
Unloading
Reduction Cleaning-
Caustic Dosing (600C X 6 min)
↓
Raising Temp at 130˚C
↓
Hydrose injection
(Run time- 10 min at 80˚C)
↓ Normal wash
↓
Drain
Required amount of water was taken into the machine
↓
The fabric was loaded and run for 5-10 minutes in normal temperature
↓
CK-2,D-600/C,SQ-12UD and PH-100 (Scouring Chemicals) were added at a time for 5 minutes
↓
Caustic was added at normal temperature for 5 minutes
↓
Temperature increased at 60˚C
↓
Hydrogen per Oxide(H2O2)was added for 5 minutes
↓
Temperature increased at 950C and continue for 1 hrs
↓
Sample check
↓
Cold wash at 40˚C for 5-10 minutes
↓
Hot wash at 95˚C for 5-10 minutes
↓
Required amount of water was loaded
↓
Croak-N was added
↓
Acetic acid was added
↓
Temperature increased at 80˚C for 15-20 minutes
↓
Cold wash at 40˚C and drain
↓
Water filled and Acetic acid was added
↓
PH check at 4.5
↓
Temperature increased at 55˚C
↓
Enzyme (Bio-EC) was added and run for 1hrs at 55˚C
↓
Shade check
↓
Cold wash at 40˚C and drain
↓
Water filled/Required amount of water was taken
↓
Temperature increased at 95-99˚C for 5-10 minutes
↓
Cold wash at 40˚C and drain
↓
Acetic acid was added
↓
PH check at 4.5
↓
EDX/200B and C/D-600 were added at a time
↓
Salt dosing
↓
Color dosing for 30 min
↓
Run for 10 min
↓
Soda dosing for 40 min
↓
Run for 7 min
↓
Temperature increase at 60˚C for 5 min
↓
Run for 10 min
↓
Shade check (OK)
↓
Rinsing
↓
Water was filled at required amount
↓
PS-60 was added
↓
Temperature increase at 80˚C for 10 min
↓
Hot wash at 90˚C for 20 min and shade check in this time (OK)
↓
Rinsing
↓
Water was filled at required amount
↓
Acetic acid was added for neutralization for 10 min
↓
Shade check (ok)
↓
ECO/FRD was added for 10 min
↓
Rinsing
↓
Water was filled at required amount
↓
PH check at 6.5
↓
(C.W.S) softener was added
↓
Final shades check and run for 20 min
↓
Unload the dyed fabric
Founder & Editor of Textile Learner. He is a Textile Consultant, Blogger & Entrepreneur. Mr. Kiron is working as a textile consultant in several local and international companies. He is also a contributor of Wikipedia.
