Woven Dyeing Faults
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Transcript of Woven Dyeing Faults
Southeast University
Prepared By : Mazadul Hasan sheshirID: 201000040000813th Batch (session 2009-2013)Department : Wet Processing Technology Email: [email protected] : www. Textilelab.blogspot.com (visit)
Southeast University Department Of Textile Engineering
I/A 251,252 Tejgaon Dhaka Bangladesh
Prepared By :
Faults in Dyeing SectorFaults in Dyeing Sector
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
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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
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2. Color Spot
Causes:1. Dyes & chemicals factors:
a. Poor Dispersion or Solubility Propertiesb. Unstable chemicalsc. Silicones in the dye bathd. Alkali residues in the goodse. Presence of iron
2. Improper Washing3. Operator negligence
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3. Crease Mark
Causes:
a.Lack of balance in construction of the fabric b.Pressure of padder rollerc.Direct Heating or Shock cooling
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4. Long Stripe
Causes:
a. Winding of yarn in padder roller
b. Improper pressure during brushing
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5. Uneven ShadeCauses:
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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6. Running Shade
Causes:
a. Change in pick-up percentage along the length of the fabric
b. Improper fabric Speed.
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1. Yarn Manufacturing TechnologyLink : http://www.facebook.com/pages/Yarn-Manufacturing-Technology/485014954866808
2. Fabric Manufacturing TechnologyLink : http://www.facebook.com/pages/Fabric-Manufacturing-Technology/459520217425605
3. Garments Manufacturing TechnologyLink : http://www.facebook.com/pages/Garments-Manufacturing-Technology/472364799463126
3. Wet processing TechnologyLink : http://www.facebook.com/pages/Wet-Processing-Technology-Dyeing-/468645219825404
4. Fashion-Design-and-TechnologyLink : http://www.facebook.com/pages/Fashion-Design-and-Technology/587655294583875?ref=ts&fref=ts
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