This document discusses common faults that can occur in woven dyeing processes, their causes, and ways to prevent them. It lists 12 common woven dyeing faults including white spots, color spots, crease marks, long stripes, and uneven shades. For each fault, the document describes potential causes such as foreign particles in the fabric or solution, hairiness in the fabric, dye and chemical factors, improper washing, operator negligence, and issues with fabric construction or processing speeds. The document is authored by Mazadul Hasan sheshir from Southeast University's Department of Wet Processing Technology.

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. Woven Dyeing Faults
1. White spot
2. Color spot
3. Bug spot
4. Water mark
5. Crease mark
6. Long stripe
7. Uneven shade
8. Running shade
9. Listing effect
10. Dirty mark
11. Oil spot
12. Stop mark
Woven
Dyeing Fault
Woven
Dyeing Fault
11
22
33
44
55
66
77
88
99
1010
1111
1212

5. Causes:
a. Foreign particles present on fabric before dyeing
b. Foreign particles present in the solution
c. Hairiness present in fabric from brushing
1. White Spot
11 22 33 44 55 66 77 88 99 1010 1111 1212

6. 2. Color Spot
Causes:
1. Dyes & chemicals factors:
a. Poor Dispersion or Solubility Properties
b. Unstable chemicals
c. Silicones in the dye bath
d. Alkali residues in the goods
e. Presence of iron
2. Improper Washing
3. Operator negligence
11 2 33 44 55 66 77 88 99 1010 1111 1212

7. 3. Crease Mark
Causes:
a.Lack of balance in construction of the fabric
b.Pressure of padder roller
c.Direct Heating or Shock cooling
11 22 33 44 55 66 77 88 99 1010 1111 1212

8. 4. Long Stripe
Causes:
a. Winding of yarn in padder roller
b. Improper pressure during brushing
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9. 5. Uneven Shade
Causes:
a. Improper scouring
b. Improper bleaching
c. Improper mercerization
d. Low solubility of dyes & chemicals
e. Negligence of operators to solubilize dyes and
chemicals
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10. 6. Running Shade
Causes:
a. Change in pick-up percentage along the length of
the fabric
b. Improper fabric Speed.
11 22 33 44 55 66 77 88 99 1010 1111 1212

12. 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 )