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WHAT ARE THE FACTORS AFFECTING CARDING U

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FACTORS AFFECTING CARDNG U :-

• Material transfer between cylinder & doffer should be proper
• Optimum tension draft
• RH% within recommendation
• Avoid lap licking and uneven lap
• No waste deposition on the redirecting roller grid
• Replace the wornout gears & wheels & loose keys.
• Ensure no loading on cylinder and doffer.
• Cylinder cover plate settings should be uniform
• Uniform chute feed roller settings 
• Proper feed roller movement & chain tension  
• Feed roller spring tension should be maximum and uniform.
• Proper tension on the sliver between scanning roller and coiler.

CONTROL OF 5 MTR  CV%

• Sample size: 6 yards, 20 samples
• Scanning roller settings at front & back as per recommendation
• Ensure delivery & feed sensor calibration 
• Scanning roller should be free from waste & fluff
• Chute feed roller settings should be uniform
• Chute feed roller spring tension should be uniform in both sides 
• Feed plate – feed roller condition 
• Feed drive arrangement should be free from dust accumulation 

SHORT THICK FAULTS IN CLASSIMAT

• Insufficient opening and cleaning will lead to more sliver trash and will create short thick faults.
• Excessive fibre entanglements while opening and cleaning in blowroom. Hence proper selection of beater is necessary.
• Improper settings between cylinder and flats
• Higher cylinder speed and flatspeed may be employed.
• Damaged wire points in cylinder, doffer & flats. Hence systematic maintenance schedules could be followed. 

LONG THICK FAULTS IN CLASSIMAT

• Presence of unopened rovings in the blow room lap or card slivers
• Folding or overlapping of the blowroom layers while feeding to the Lickerin of the cards 
• Long Thin Faults
• Excessive incidence of web falling in cards
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