The document outlines quality and process control measures in wet processing, specifically focusing on shearing and cropping machines. Key parameters include checks for metal particles, seams, loose threads, abrasion, long threads, and cut/hole formations, with specified methods of checking and necessary actions for maintenance. The document emphasizes the importance of machine efficiency and overall productivity, recommending regular assessments to ensure optimal operation.

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