Single guide bar fabrics are the simplest warp knitted fabrics, produced from one guide bar, usually by full threading. All yarns in such fabrics have the same orientation, and the forces in the loop heads are often come in equilibrium after deformation of the structure, so the loops can have different angles. Single guide bar fabrics can be interpreted as the basic element, which is used for the design of more complex structures and multiple bar structures. The multi bar structures are a combination of several single bar structures, but not all pattern and threading of single guide bars produce stable structures.

1. Pillar stitch chains
2. Cord stitch fabrics
3. Tricot stitch fabrics
4. Satin and velvet fabrics
5. Atlas fabrics
6. Combined stitches

Cord stitch fabrics at full threading can be recognized through the underlap behind one loop. The configuration with closed loops in simulated and photographic images is represented in Figure 2. The underlaps determine the optics of the technical face side Figure 2. f), while on the technical back the loop faces are visible Figure 2 g). The loops in the relaxed stay are more declined to the horizontal side in comparison to the loops of the tricot stitch, because of the larger paths to left and right.

Tricot fabrics are the simplest plain fabrics, where the individual chains are connected at every course. The example structure with closed lap is demonstrated in Figure 3 as idealized simulation

For the structures, where longer oatings of the yarns are needed, the satin (under 3 over 1) and velvet (4 – 1 or under 4 over 1) lapping in full threading are used. These structure have more shine and a smooth technical face because of the longer underlaps. Using partial threading – 1 in 2 out or (A..) for satin or 1 in 3 out (A…) for velvet can be used as well for production of tricot fabrics with lower density. Using velvet with 1 in 1 out (A.) leads to a cord fabrics with lower density.