GATE (TF) Textile 2009 Question Paper Solution | GATE/2009/TF/40

Question 40 (Textile Engineering & Fibre Science)

In fully relaxed state the loop shape factor (defined as a ratio of courses per unit length to wales per unit length) of a plain weft knitted cotton fabric will be approximately

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Option C is correct

Frequently Asked Questions | FAQs

Why is loop length important in knitting?

Loop length, also known as stitch length, is an important aspect of knitting that affects the overall appearance, drape, and characteristics of the knitted fabric. It refers to the distance between consecutive stitches or loops on a knitted row.
Here are a few reasons why loop length is important in knitting:

Fabric Density: The loop length determines the density of the knitted fabric. A shorter loop length creates a denser fabric with less space between stitches, resulting in a tighter and more solid fabric structure. Conversely, a longer loop length leads to a more open and airy fabric with visible gaps between stitches.

Fabric Stretch and Drape: The length of the loops affects the stretchiness and drape of the knitted fabric. Shorter loops make the fabric less stretchy and more rigid, while longer loops provide greater elasticity and better drape. Different garments or projects may require different levels of stretch and drape, and loop length helps achieve the desired effect.

Fabric Thickness: Loop length also influences the thickness or gauge of the knitted fabric. When the loops are shorter, more stitches are packed into a given length, resulting in a thicker fabric. Conversely, longer loops create a thinner fabric with fewer stitches in the same space. The choice of loop length contributes to the desired weight and warmth of the knitted item.
Stitch Definition: The length of the loops affects the visibility and definition of the stitches. Shorter loops result in tighter, crisper stitches that show intricate stitch patterns more clearly. Longer loops can obscure stitch definition and make intricate patterns less pronounced.

Yarn Consumption: Loop length also impacts the amount of yarn required for a project. Shorter loops consume more yarn as they pack the stitches closer together, while longer loops use less yarn due to the increased spacing between stitches.
Knitters can control the loop length by adjusting the tension of the yarn, the size of the knitting needles, and the knitting technique employed. Understanding the impact of loop length allows knitters to create fabrics with specific characteristics suited to their intended purpose and desired aesthetic.

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