01 · Machinery and Equipment
- Circular Knitting Machine / Yuvarlak Örme Makinesi
- Flat Knitting Machine / Düz Örme Makinesi
- Positive feeders and elastane feeding systems
- Take-down and winding system
- Needle, sinker and cam system
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01 · FABRIC FORMATION
Managing knitting from yarn input to fabric performance.
Stable fabric weight, width and surface quality require the joint control of yarn properties, machine gauge, stitch length, feed tension, take-down and elastane delivery.
Process Objective
The objective of knitting is not only to form fabric, but to produce a traceable and repeatable substrate that behaves predictably during pretreatment, dyeing and finishing.
02 · Critical Process Parameters
- Yarn count, twist, lot and evenness
- Machine gauge and knit construction
- Stitch length and yarn feed quantity
- Feed tension and positive feeder calibration
- Take-down, machine speed and winding tension
- Elastane delivery ratio, guide position and plating arrangement
- Needle-sinker condition, lubrication and machine cleanliness
03 · Measurement and Control Points
01
Stitch length and feed measurement
02
Greige GSM and width
03
Courses and wales density
04
Roll-based defect map and machine-feeder traceability
05
Spirality and relaxation behaviour
06
Pre-dye lot, tubular/open-width and elastane continuity control
04 · ROOT CAUSE
Common Defects, Root Cause and Corrective Action
01
Needle Line / İğne İzi
Symptom / Belirti
A continuous vertical line or surface difference along the fabric.
Root Cause / Kök Neden
Damaged or differently acting needle-sinker elements, cam setting, contamination or uneven lubrication.
Corrective Action / Düzeltici Faaliyet
Inspect needles, sinkers and cams; verify the responsible feeder; standardize and record cleaning and lubrication.
02
Barré / Enine Çizgi
Symptom / Belirti
Periodic shade or structural bands, often more visible after dyeing.
Root Cause / Kök Neden
Differences in yarn lot, count, twist or dye affinity; feed tension or stitch-length variation.
Corrective Action / Düzeltici Faaliyet
Segregate lots, compare yarn properties, measure feeder tension and verify the stitch-length standard.
03
Elastane Plating Fault
Symptom / Belirti
Elastane showing on the face, broken lines, waviness or local width variation.
Root Cause / Kök Neden
Delivery ratio, guide position, tension, elastane breakage or unbalanced take-down.
Corrective Action / Düzeltici Faaliyet
Calibrate elastane feeders, secure guide position, verify break sensors and balance take-down.
04
Spirality / May Dönmesi
Symptom / Belirti
Seams and wales rotate away from the intended axis after washing or relaxation.
Root Cause / Kök Neden
Yarn torque, unbalanced construction, excessive tension, unsuitable take-down and insufficient directional control in later processes.
Corrective Action / Düzeltici Faaliyet
Verify yarn and construction suitability; reduce tension; assess relaxation, stenter and compactor settings together.
05 · DOCUMENTATION
Downloadable Technical Resources
Technical Reference Framework
This page does not prescribe fixed recipes or machine setpoints. Final values must be validated against fibre, yarn, construction, machinery, chemical system and customer specification.
Field Image Standard
Requested field photo: a horizontal 16:9 image, shot from a 30–45° angle, showing feeders, needle bed and take-down area of a circular knitting machine with the operator at a safe distance.
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