Textile fabrics sheared and cropped before various textile wet processing operations. So parameters of process performance must be controlled.

1. QUALITY & PROCESS
CONTROL
IN
WET PROCESSING
PROCESS CONTROL IN SHEARING/CROPPING

2. SHEARING/CROPPING MACHINE

3. SHEARING/CROPPING MACHINE

4. IRON
PARTICLES
• Metal DetectionParameter
• During ProcessCheck Point
• Metal detector
Method of
Checking
• No metallic particle
should be present
Standard/
Frequency
of Checking
• Efficient working of
metal detector
Necessary
Action

5. • Seam detection
Parameter
• During process
Check Point
• Seam detector
Method of Checking
• ----Standard/
Frequency of Checking
• Efficient working of
seam detectore
Necessary Action

6. • Loose threadsParameter
• During ProcessCheck Point
• VisualMethod of Checking
• No loose threads
should be remain
Standard/
Frequency of
Checking
• Adjust the position
of ledger blade
Necessary Action

7. • Abrasion
Parameter
• During Process
Check Point
• VisualMethod of
Checking
• No abrasionStandard/
Frequency of
Checking
• Disengage
emery rolls
Necessary
Action

8. • Long threads
Parameter
• During Process
Check Point
• VisualMethod of
Checking
• Once a ShiftStandard/
Frequency of
Checking
• Proper functioning
of suction
Necessary
Action

9. • Cut/Hole formationParameter
• During ProcessCheck Point
• VisualMethod of Checking
• Random checkStandard/Frequency
of Checking
• Proper adjustment of
brushes and blades
Necessary Action

10. • Shearing EfficiencyParameter
• After ProcessCheck Point
• Visual AssessmentMethod of Checking
• 80 – 90%Standard/ Frequency
of Checking
• Proper working of the
Machine
Necessary Action

11. • Machine efficiency
Parameter
• During Process
Check Point
• Productivity Assessment
Method of Checking
• 70 – 75% / once a dayStandard/ Frequency
of Checking
• Optimum speed
• Feasibility of running
Necessary Action

12.  C R Madhu
 Textile Processing Technology
 R C Technical Institute
 Ahmedabad, Gujarat
 crm4chemistry@gmail.com
 https://textilechemrose.blogspot
.com/
THANK YOU