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: