Physical Structure of Cotton
Physical structure
Every cotton fibre consist of different Layers, Cuticle, Primary wall, Secondary wall and Lumen.Describe every layers are given below-
Cuticle: The cuticle is the skin of cotton or out side of layer in cotton fiber. It is contains some cellulose but accompanied by fat and waxes. The waxy component of the cuticle enables it to adhere tenaciously to the primary wall of the fiber.
Primary wall: The primary cell wall composed of criss-cross fibrils of cellulose and containing some pectins . It is the beneath of the cuticle. The cellulose in Primary cell walls has lower molecular weight with the DP between 2000-6000.
Secondary wall: It is consist of the bulk of the cellulosic component , which lies between the primary wall ans the lumen of the fiber. The secondary wall of a matured fiber is nearly 100% cellulose.The molecular weight distribution is uniform and DP is about 1400 .It is composed two layers. It is thickness about 100 nm . The fibrils of the secondary wall are about is 10 nm thick. It"s aligned parallel . It is able to exert immense strength in longitudinal direction of fiber.
Lumen: The innermost part of cotton fiber is lumen , it is a hollow canal running the length of the fiber .It has proteins ,coloring matter and minerals deposited on it walls.
Physical Structure of Cotton Fiber Figure is given below-
Every cotton fibre consist of different Layers, Cuticle, Primary wall, Secondary wall and Lumen.Describe every layers are given below-
Cuticle: The cuticle is the skin of cotton or out side of layer in cotton fiber. It is contains some cellulose but accompanied by fat and waxes. The waxy component of the cuticle enables it to adhere tenaciously to the primary wall of the fiber.
Primary wall: The primary cell wall composed of criss-cross fibrils of cellulose and containing some pectins . It is the beneath of the cuticle. The cellulose in Primary cell walls has lower molecular weight with the DP between 2000-6000.
Secondary wall: It is consist of the bulk of the cellulosic component , which lies between the primary wall ans the lumen of the fiber. The secondary wall of a matured fiber is nearly 100% cellulose.The molecular weight distribution is uniform and DP is about 1400 .It is composed two layers. It is thickness about 100 nm . The fibrils of the secondary wall are about is 10 nm thick. It"s aligned parallel . It is able to exert immense strength in longitudinal direction of fiber.
Lumen: The innermost part of cotton fiber is lumen , it is a hollow canal running the length of the fiber .It has proteins ,coloring matter and minerals deposited on it walls.
Physical Structure of Cotton Fiber Figure is given below-
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