1. Southeast University

2. Prepared By : Mazadul Hasan sheshir
ID: 2010000400008
13th
Batch (session 2009-2013)
Department : Wet Processing Technology
Email: mazadulhasan@yahoo.com
Blog : www. Textilelab.blogspot.com (visit)
Southeast University
Department Of Textile Engineering
I/A 251,252 Tejgaon Dhaka Bangladesh
Prepared By :

3. Faults in Dyeing SectorFaults in Dyeing Sector

4. Yarn Dyeing Faults
1. Package un-level
2. Package to package shade
variation
3. Color spot
4. Ring mark
5. Dirt mark
Yarn
Dyein
g
Fault

5. 1. Package Unlevel
Causes:
a. Tension variation while soft winding of the
package
b. Lot mixing of yarns in the same package
c. Different counts of yarns in the same
package
d. Pressure variation in the machine vessel
e. Improper pretreatment of the yarn
f. Improper quality of the dyes and chemicals
g. Improper acid treatment after scouring and
bleaching

6. 2. Package to Package shade variation
Causes:
a. Improper setting of yarn packages in the machine
b. Lot mixing of the packages
c. Count variation of packages
Causes:
a. Improper setting of yarn packages in the machine
b. Lot mixing of the packages
c. Count variation of packages
Packag
e
Unlevel

7. 3. Color Spot
Causes:
a. Floating of dye particles in the air
b. Improper per-oxide killing
c. Hardness of water
d. Improper mixing of dyestuffs
Packag
e
Unlevel
P 2 P
shade
variatio
n

8. 5. Ring Mark
Causes:
a. Improper drying of the packages
b. Improper peroxide killing
4. Dirt Mark
Causes:
a. Dirty handling of the packages
b. Presence of dust in the air
Figure: Dirt mark
Packag
e
Unlevel
P 2 P
shade
variatio
n
Colo
r
Spot

10. 1. Yarn Manufacturing Technology
Link : http://www.facebook.com/pages/Yarn-Manufacturing-Technology/485014954866808
2. Fabric Manufacturing Technology
Link : http://www.facebook.com/pages/Fabric-Manufacturing-Technology/459520217425605
3. Garments Manufacturing Technology
Link : http://www.facebook.com/pages/Garments-Manufacturing-Technology/472364799463126
3. Wet processing Technology
Link : http://www.facebook.com/pages/Wet-Processing-Technology-Dyeing-/468645219825404
4. Fashion-Design-and-Technology
Link : http://www.facebook.com/pages/Fashion-Design-and-Technology/587655294583875?ref=ts&fref=ts
My Facebook Textile related Pages
http://www.textilelab.blogspot.com (Visit )