Defects that involve material separation or removal such as scratches, tip rub, nicks, tears, cracks, and breaking, are best shown in airfoil views.

What are defects in warp knitting?

Defects that involve material separation or removal such as scratches, tip rub, nicks, tears, cracks, and breaking, are best shown in airfoil views.

What is the difference between warp and weft knitted fabrics?

Warp knitting represents the fastest method of producing fabric from yarns. This differs from weft knitting in that each needle loops its own thread and runs vertically down the fabric. Warp knit fabrics will have the knit stitch on the face of the fabric but have a horizontal zigzag pattern on the back.

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 disadvantages of weft knitted fabrics?

Advantages: Weft knitted fabric is very elastic, stretchable and comfortable to wear. It is warm to wear, i.e. a good insulator. It does not fray easily and is very cost-efficient. Disadvantages: It shrinks easily.

What are the fabric defects?

This system assigns penalty points to a roll of fabric according to defect size, quality and significance.

• Horizontal lines.
• Shade variation.
• Dirt/stains.
• Uneven dyeing.
• Drop stitches.
• Misprinting.
• Crease marks.
• Barre.

What are warp knit fabrics used for?

Warp knitted fabrics have several industrial uses, including producing mosquito netting, tulle fabrics, sports wear, shoe fabric, fabrics for printing and advertising, coating substrates and laminating backgrounds.

What is difference between weft and warp?

Warp and weft are the two basic components used in weaving to turn thread or yarn into fabric. The lengthwise or longitudinal warp yarns are held stationary in tension on a frame or loom while the transverse weft (sometimes woof) is drawn through and inserted over and under the warp.

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 is weft knitted fabric?

Definition of weft knit : a knit fabric produced in machine or hand knitting with the yarns running crosswise or in a circle — compare warp knit.

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 is warp and weft in fabric?

weaving, lengthwise yarns are called warp; crosswise yarns are called weft, or filling. Most woven fabrics are made with their outer edges finished in a manner that avoids raveling; these are called selvages. They run lengthwise, parallel to the warp yarns.