Which of the following is the primary property of a fibre?

Correct option is A

Cohesiveness is a primary property of a fibre, referring to its ability to cling together when spun into yarn. This characteristic is crucial for spinning and yarn formation, as it helps fibers interlock and hold together during the twisting process. Fibers with good cohesiveness, such as wool and cotton, can be easily spun into strong, smooth yarns.
Information Booster:
· Cohesiveness depends on factors like fiber length, surface scales (in wool), and crimp (waviness in fibers).
· Natural fibers like wool have high cohesiveness due to their scaly surface, which helps in interlocking during spinning.
· Cotton and flax also exhibit good cohesiveness, making them suitable for yarn production.
Additional Knowledge:
· Density:
· Refers to the mass per unit volume of a fiber. It affects the weight of fabrics but is not a primary property for fiber formation.
· Lustre:
· Describes the shine or glossiness of a fiber, influenced by surface smoothness and light reflection.
· Common in silk and synthetic fibers, but it is not essential for fiber formation.
· Resiliency:
· Refers to a fiber’s ability to return to its original shape after deformation (e.g., wrinkling or stretching).
· Important for fabric durability, but not a primary property of fibers.