Faults in knit dyed fabric

Faults in Knit Dyed Fabric    !"# $% &'% () *(+ *, * /+0 *(1110)23**404*($0 . 5%+ $% 6)23* ( % ( ''7 ©right Knitting faults Yarn dust Causes of faults: -  Fly yarn/ foreign fiber Remedies: -  Proper air suction Set-up Causes of faults: -  For badly needle break  Yarn break Remedies: -  Remove bad needle  Maintain proper tension Loop mark Causes of faults: -  Defective needle  Not properly needle latch work Remedies: -  Change new needle  By clean needle latch, hook Needle break Causes of faults: -  High yarn tension  Bad setting of the yarn feeders  Old and worn out needle set Remedies: -  Ensure uniform and right yarn tension on the feeders  Keep the recommended gap between the yarn feeders and the needles  Periodically change complete set of needles Oil spot Causes of faults: -  Due to contact with oil or grease covered exposed m/c parts  Careless handling could be another cause Remedies: -  Use of strong knitting oil which can be removed  After every process, if possible check filter and clean it Thick place Causes of faults: -  Different yarn count  Use unmatured fiber Remedies: -  Select matured fiber  Check /indentify the yarn thick/thin place Mix yarn/Lot mix Causes of faults: -  Unawareness of operator Remedies: -  Awareness in production [...]... dyeing Causes of faults: -    Improper migration Improper neutralization Inadequate scouring of the grey fabric Remedies: -    Scouring the grey fabric thoroughly Proper migration Proper neutralization Soda spot Causes of faults: -  Improper dosing of soda Remedies: -  Proper dosing of soda Finishing fault of knit dyeing fabric Uneven Causes of faults: -    Unstable dye dispersion Dispersing... temperature maintained Skew Causes of faults: -  Over width for this fabric Remedies: -  By using weft straightening device  Maintain proper width Slitting fault Causes of faults: -  It is causes due to operator carelessness Remedies: -  Operators have to slit fabric through slitting mark Uneven brushing Causes of faults: -   Not proper soft Roller pins problem Remedies: -   Use softener Check pins... Improper dyes dosing Improper soda dosing Improper migration Improper leveling agents Remedies: -      Proper neutralization Proper dyes dosing Proper soda dosing Proper migration Proper leveling agents Uneven dyeing Causes of faults: Dyeing m/c stoppage, due to power failure or the fabric entanglement in the dyeing m/c Correct pH value not maintained Improper leveling agent Water hardness Remedies:... for the dyeing operation to be completed uninterrupted Maintain correct pH value Use appropriate leveling agents Maintain water hardness Dye spots Causes of faults: -  Colored spots due to dye deposits on the m/c Remedies: -  Pay attention to cleanness in the m/c Pilling Causes of faults: -  Due to friction of fabric  Poor yarn quality Remedies: -  Need good enzyme treatment  By using combed... Inadequate scouring of the grey fabric Correct pH value not maintained Water hardness Improper neutralization Improper migration Remedies: Scour the grey fabric thoroughly, to remove all the impurities from the fabric Maintain the correct pH value Maintain water hardness Proper neutralization Proper migration Uneven dyeing Causes of faults: -      Improper neutralization Improper dyes dosing Improper... of faults: -     Yarn break Positive feeder jam Excessive needle tension Weak yarn Remedies: -    Yarn strength must be sufficient Smooth running of feeder Proper needle tension Tara fault (Star) Causes of faults: -  For high r.p.m of m/c cylinder  One part dyeing Remedies: -  Maintain proper r.p.m of m/c cylinder  Range should be upto 23 Dyeing faults Uneven dyeing Causes of faults: Inadequate...    Maintain proper yarn tension Ensure smooth running of guide roller Change defective needle Yarn contamination Causes of faults: -  Presence of dead fibers and other foreign materials  Presence of the foreign materials, in the stable fiber mixing Remedies: -   Use rich fiber mixing for the yarns Segregate the knitting m/c with mosquito nets to prevent the fibers flying from neighboring Miss... roller should be maintained  Take care of fabric Burning effect Causes of faults: -   For wrong temperature Unawareness of operator Remedies: -   Maintained proper temperature By using experienced manpower Chemical spot Causes of faults: -    Improper mixing of chemical Weak chemical Unawareness of operator Remedies: -    Proper mixing of chemical Use appropriate chemical By using experienced... the silicon Use the right silicon Maintain the correct pH value, before application Silicon mark & Burn effect Causes of faults: -    Long time deposit of solution  Twice stenter Improper mixing For over or high temperature this burn effect is visible Remedies: -    Proper mixing Select suitable silicon Maintain correct temperature Line mark Causes of faults: -  This mark are caused due to... mark Causes of faults: -   Improper motion of padder Improper fabric movement Remedies: -    Proper motion of padder Ensure smooth running of fabric Use anti-creasing agents Unwanted mark Causes of faults: -  Due to contact with oil or grease covered exposed m/c parts  Careless handling could be another cause Remedies: -   Use of strong oil which can be removed Proper handling should be taken . (Star) Causes of faults: -  For high r.p.m of m/c cylinder  One part dyeing Remedies: -  Maintain proper r.p.m of m/c cylinder  Range should be upto 23 Dyeing faults Uneven dyeing Causes of faults: . fabric  Maintain the correct pH value  Maintain water hardness  Proper neutralization  Proper migration Uneven dyeing Causes of faults: -  Improper neutralization  Improper dyes dosing  Improper. agents Uneven dyeing Causes of faults: -  Dyeing m/c stoppage, due to power failure or the fabric entanglement in the dyeing m/c  Correct pH value not maintained  Improper leveling agent  Water hardness Remedies: