The detailed discription of warp knitting with a video.

1. FABRIC SCIENCE-2
By :Chiluka Saikumar
Knr13ap30
FP Technology
Sem-2

2. By : Vasant R Kothari
Magazine : Knitting views
March-April 2012.

3. • Warp Knitting is defined as a stitch forming process in which the yarns are supplied
to the knitting zone parallel to the selvedge of the fabric.
,i.e. In the direction of wales.
• In Warp knitting machine, every knitting needle is supplied with at least one separate
yarn. In order to connect the stitches to form a fabric ,the yarns are deflected laterally
between the needles.

4. As compared to weft knitting in warp knitting also, the wales and course are
respectively called as overlap and under lap.

5. • The warp knitted fabric structure has dissimilar appearance on the technical face and
technical backside of the fabric.
• All warp-knitted fabrics can be identified and distinguished from weft knitted materials
by careful examination of the face and back of the fabric, usually with the help of a
Pick glass.

6. • The face side of the fabric has rather clearly defined knit stitches generally running
vertically, but slightly angled from side to side.
• The technical backside of the fabric, the diagonal line of yarns i.e.underlaps run right
And left throughout in a zigzag manner.

7. Overlap
Underlap
• The under laps play a very important role in the pattern effects. The length or extent
of these underlap floats and their direction of running cause a variety of
designing possibilities.

8. Loops are termed ‘Laps’ in warp knitting because the warp guides lap their yarn
around the needles in order to form the loop structure.
WARP KNITTED STRUCTURE
The stitch(overlap)
The linking(underlap)

9. The formation of Stitch in warp knitting using a compound warp knitting needle.

10.  Extremely versatile in pattern effects with yarn.
 Rigid to elastic
 Good air and water permeability
 Good crease resistance
 Good drapability
 Good dimensional stability
 Good strength.