Weft Knitting: Stitch Cam Setting Effects
The stitch cam setting in a weft knitting machine influences the yarn path and needle movement during loop formation.
Stitch Cam Setting Mechanism
- The stitch cam dictates the vertical distance the needle travels upwards after clearing the old loop and before forming the new one.
- A higher stitch cam setting allows the needle to travel further upwards.
Impact on Loop Length
When the needle moves further up, it accommodates more yarn, leading to the formation of longer loops.
Impact on Fabric Density
Longer loops create a looser fabric structure. This means fewer loops are packed into a given area, resulting in a decrease in the fabric's areal density.
Conclusion
Consequently, a higher value of the stitch cam setting leads to an increase in loop length and a decrease in fabric areal density.
Important Questions from FABR Weft and Warp Knitting
- Amongst the following, the component which is NOT a part of single-bed warp knitting machine, is
A circular weft knitting machine with 24 inch gauge and 20 inch diameter needle bed is used to make a tubular knitted fabric. If the fabric shrinks by 35 % in course-wise direction upon withdrawal from the machine, the circumference (inch) of the shrunk tubular fabric is approximately
- Fabric structure related to weft knitting is
Group I gives a list of terms related to woven fabrics and Group II contains equivalent terms related to knitted fabrics. Match the term from Group I with the equivalent term from Group II.
Group I Group II P. Cover 1. Interlock Q. Double-cloth 2. Wales R. Warp 3. Tightness S. Weft 4. Courses The wale constant and course constant are 4.2 and 5.04 respectively. If the loop length is 4.2 mm, then stitch density (number/cm$^2$) is______.
