Question 04 (Textile Engineering & Fibre Science)
The group of fibres produced by solution spinning is
| (A) | Viscose and polyamide |
| (B) | Viscose and acrylic |
| (C) | Polyester and acrylic |
| (D) | Polyamide and acetate |
[Show Answer]
Option B is correct
Frequently Asked Questions | FAQs
What are the different types of solution spinning?
Solution spinning is a process used to create fibers from a polymer solution. There are several types of solution spinning techniques used in the industry, and some of the most common ones are:
Wet spinning: Wet spinning is the oldest and most widely used solution spinning technique. In this method, a polymer solution is extruded into a coagulating bath that causes the polymer to solidify into a fiber. The coagulating bath may be an organic solvent or an aqueous solution.
Dry spinning: In dry spinning, the polymer solution is extruded into a stream of hot air, which evaporates the solvent and leaves behind a solid fiber. This method is often used for polymers that are not soluble in water or for fibers that require high strength.
Melt spinning: Melt spinning is a technique used for polymers that can be melted without degrading. In this method, the polymer is melted and then extruded through a spinneret to form a fiber. The fiber solidifies as it cools.
Electrospinning: Electrospinning is a relatively new technique that uses an electric field to create a fine, continuous fiber from a polymer solution. The polymer solution is fed through a small needle or spinneret, and an electric field is applied to the solution to create a charged jet of fluid that solidifies into a fiber.
Each solution spinning technique has its advantages and disadvantages, and the choice of method depends on the specific polymer and the desired properties of the resulting fiber.