WHAT ARE THE FACTORS AFFECTING CARDING U

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