Properties or Characteristics of Yarn?

Properties or Characteristics of Yarn?

Answer:
Introduction: 

Fabric quality means different characteristics of finished fabric which totally depends on yarn characteristics and fabric construction. The quality of hosiery yarn has to be considered with due weight-age to the fluidity of knitted structures and their influence on knit fabrics quality.

The crucial yarn properties to be thought-about would be twisted in yarn for shortest doable gauge length, among variation of friction in yarn, yarn irregularity, torsional rigidity and flexural rigidity.

Mechanical Properties of Yarn:
Some important mechanical properties of yarn are-
1. Frictional properties,
2. Flexural properties,
3. Tensile properties,
4. Torsional properties.

Tensile Properties of Yarn:
Important tensile properties of yarn are-
1. Elasticity,
2. Breaking extension,
3. Plasticity,
4. Elastic limit,
5. Breaking point,
6. Elongation.

Properties of Yarn for Knit Fabric Manufacturing:
The below characteristics of yarn has needed during knit fabric manufacturing or knitting.
1. Yarn count,
2. Co-efficient of variation (CV %),
3. Twist in yarn,
4. Twist variation in yarn,
5. Regularity or evenness of the yarn,
6. Imperfection in the yarn,
7. Thick place in the yarn,
8. Neps,
9. Thin place in yarn,
10. Hairiness,
11. Yarn strength,
12. Strength variation in yarn.

Effect of Fibre Length on Yarn Properties:
Those are-
1. Yarn strength,
2. Processing efficiency,
3. Yarn handle,
4. Yarn count,
5. Yarn hairiness,
6. Lustre,
7. Yarn evenness,
8. Production.

Effect of Fibre Fineness on Yarn Properties:
Those are-
1. Yarn count,
2. Yarn strength,
3. Flexibility,
4. Lustre,
5. Spinning limit,
6. Torsional property.

Effect of Fibre Strength on Yarn Properties:
Those are-
1. Fibre damage,
2. Yarn strength,
3. Spinning performance.


Physical properties and performance characteristics of different yarns:

1. Staple yarns: Carded cotton, combed cotton, Woolen, Worsted, Linen
Properties: wonderful handle, sensible covering power, sensible comfort rating; affordable strength; affordable uniformity.

2. Continuous filament yarns: Natural, Non-synthetic, and Synthetic
Properties: Excellent uniformity; excellent strength; can be very fine; fair handle; poor covering power

3. High bulk yarns: Staple, Continuous filament
Properties: Good covering power with light weight; good loftiness of fullness

4. Stretch yarns: Continuous filament
Properties: High stretch ability; good handle and covering power

5. Special end-use: Tire cord, Rubber/elastic, Core yarn, Cabled, Coated
Properties: Purely functional; designed to satisfy a specific set of conditions.

6. Novelty yarns: Fancy yarns, Metallic,
Properties: Excellent decorative features or characteristics