What type defects occur in knit fabrics & the remedies of these defects?

What are defects in knitted fabric?

Defects have seen during knitting the fabric:

  • Yarn dust, Yarn Dust in the fabric.
  • Set-up, Set-up in the fabric.
  • Loop mark, Loop Mark in the fabric.
  • Needle break, Needle Break in the fabric.
  • Oil spot, Oil Spot in the fabric.
  • Thick and Thin place, Thick and Thin Place in the fabric.
  • Mix yarn or Lot mix, …
  • Hole,

What are the eight knitting defects?

The major defects in Knitted fabrics be it flat knit or circular knit are as below:

  • Barre.
  • Streakiness.
  • Imperfections.
  • Contaminations.
  • Snarling.
  • Spirality.
  • Spandex Jump.
  • Spandex miss.

What are the fabric defects and causes?

Glossary of Defects

Defect Severity
Drop Stitching Major
Dropped Pick Major
Drawbacks Major
Dye Streak in Printing Major

What are fabric defects?

A Fabric Defect is any abnormality in the Fabric that hinders its acceptability by the consumer. Importance: With increase in demand of quality fabric now customers are more concerned about the quality of the material. In order to fulfill demand of quality material it is importance to avoid defects.

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What are the stitching defects?

Sewing Defects:

  • Needle damage: for example, thread drawn-off from the fabric or making of a large hole to the fabrics.
  • Skipped stitch.
  • Thread drawn-off.
  • Seam puckering.
  • Wrong stitch density.
  • Uneven stitch.
  • Staggered stitch.
  • Defected stitch.

What are knit fabrics?

Knitted fabrics are made by one continuous thread, much like continuous yarn in hand knitting. Knitted textiles are created by a single thread or yarn, assisted by needles, to create interlocking loops, instead of the multiple warp yarns used in woven fabrics. … Knitted fabric must be glued on the cut edge to prevent it.

What are finishing defects?

List of Finishing Defects Found in Quality Inspection

  • Uncut thread.
  • Iron problem.
  • Broken stitch.
  • Button alter.
  • Skip stitch.
  • Bartack Defect.
  • Oil / Dirty.
  • shading.

What are the knitted fabric fault discuss any 7 types of knitted fabric fault with causes?

Knitting Faults in fabric : Weft fabric faults, Causes and Remedies

  • Hole Mark. Causes: ❶ Holes are the results of yarn breakage or yarn cracks. …
  • Needle Mark. Causes: …
  • Star mark. Causes: …
  • Drop Stitches. Causes: …
  • Oil stain. Causes: …
  • Pin hole. Causes: …
  • Fly dusts. Causes: …
  • Yarn contamination. Causes:

What is major defects in garments?

Major Defect – A defect that is likely to result in failure; reducing the usability of the product and obvious appearance defects affecting the sale ability or shorten the life cycle of the product. Tolerance limits of defects (size, repeatability, quality, significance) will be defined later.

What is woven fabric defect?

Defects in woven fabric can be a result of yarn imperfections, incorrect weaving process or errors in the finishing process. They can be categorized into 3 groups: yarn related defects, defects occurring in warp direction and defects in the filling direction.

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How many types of fabric defects are there?

In terms of quality standards, the defects on the fabric surface are categorized into two: surface colour change and local texture irregularity. Further, the defects can be classified as: Yarn Defects. Weaving Defects.

How can fabric defects be prevented?

Prevention Measures

Ensure the base fabric is top quality before stitching to prevent problems further down the production line. Maintain correct pH levels and use an appropriate dying agent. Having backup power will protect against machines shutting down during power cuts.

What is one of the remedy for lowering fabric pilling defect?

Pilling can be controlled by various methods including proper selection of fiber, prevention of abrasion during batch processing, and shearing and cropping with brushing to eliminate surface fibers and protruding fibers.

What is major and minor defects in garments?

A Minor defect is a discrepancy from the standards, but one that is not likely to affect the usability of an object. A Major defect is one that is likely to create failure of the unit for its intended purpose. A Critical defect is one that is deemed to be hazardous or unsafe.