Question 42 (Textile Engineering & Fibre Science)
Choose the correct statement (s)
To get uniform impregnation of chemicals on cotton through minimum application techniques
| (P) | Material should be uniformly scoured |
| (Q) | Material should be bone dry |
| (R) | Material should contain optimum moisture |
| (S) | Material should be uniformly bleached |
| (A) | P,R |
| (B) | P,Q,R |
| (C) | P,Q |
| (D) | P |
[Show Answer]
D
Frequently Asked Questions | FAQs
What is the scouring process?
Scouring is a process used in textile manufacturing to remove natural impurities, such as wax, pectin, and oil, from textile fibers before they are processed further. Scouring prepares the fibers for subsequent processes such as dyeing, printing, and finishing.
The scouring process typically involves the use of hot water and detergents or other chemicals to remove the impurities from the fibers. The temperature and duration of the scouring process depend on the type of fiber being scoured, as well as the impurities present in the fiber.
The steps involved in the scouring process can vary depending on the type of fiber being scoured, but typically include:
Preparation of the fiber: The fiber is prepared by cutting or opening it, so that it can be scoured effectively.
Scouring bath preparation: A scouring bath is prepared using water and detergent or other chemicals, depending on the type of fiber being scoured.
Scouring: The fiber is immersed in the scouring bath and heated to a specific temperature for a specified duration of time. The temperature and duration of the scouring process depend on the type of fiber and the impurities present in the fiber.
Rinsing: The fiber is then rinsed thoroughly with water to remove any residual chemicals and impurities.
Neutralization: The fiber is treated with an acid or other neutralizing agent to neutralize any residual alkalinity.
Drying: The fiber is dried using air or heat, depending on the fiber type.
Scouring is an important process in textile manufacturing, as it helps to prepare the fiber for subsequent processes such as dyeing, printing, and finishing. By removing the natural impurities from the fiber, the dyeing process can be optimized, and the final product will have better color consistency and durability.