Viscose Fibre Research Paper

2.6.1 Viscose Yarn:
In the 19th century, many varieties of cellulose fibers have produced experimentally. The most well-liked cellulose fiber produced in 1905 is popularly known as viscose fiber. The fibers for fabrics are usually generated from cellulose obtained from wood but sometimes cellulose from short cotton fibers named linters can also be used. The name of the most prevalent fibre of cellulode is Viscose fibre.
Viscose fibre is usually synthesized from a group of natural and artificial components and it can be use to produce the more ordinary form of rayon, it is usually used in several classes of textile materials such as clothing, upholstery.
2.6.2 The Properties and Uses of viscose fibre:
• Viscose fibre gives the appearance

After this the coated piece can then subjected to drying by whether by force-drying or baking. Thin film coated materials along with the spin coating are usually produced using this procedure. Dip Coating procedures:
The dip coating process can be subdivided into 3 important step:
 Substrate immersion: the substrate is carefully dipped into the solution of the coating material at a constant speed
 The dwell time : is the second step of dip coating in the motionless substrate is then immersed fully to the solution to allow the coating material and the substrate to react
 The Withdrawal Step : At this step the substrate is withdrawn from the solution, again at a constant speed . The thickness of the coating material depends on how fast the substrate is withdrawn from the tank.
3.1.2 Pros and

While using the dip-coating method the substrate is slowly dipped into and subsequently withdrawn from a tank containing the sol, with a uniform velocity, in order to obtain a homogenous coating.
The deposition operations were completely automated by a computerized control system. The whole experimental set-up, entirely made in our laboratory, is isolated on a vibration damping table to make sure that the liquid surface remains completely undisturbed, thus resulting to the homogeneity of thickness at each deposition.”15”
3.2.1 Plasma treatment: When a substrate possesses a low surface energy, its wet ability is poor and coating adhesion not common, and then needs a surface treatment to increase energy. The surface energies of the treated materials increased substantially, thereby enhancing wet ability, and adhesion properties. The process of subjecting polymers to a low-temperature, and high density glow