Question

Titanium Oxide and Geranium Oxide are added in dope solution before spinning of the manufactured fibers as:

• A. Delusterant
• B. Moderant
• C. Chelating Agent
• D. Oxidising Agent

Hint:

Remember: TiO\textsubscript{2} = delusterant, reduces unnatural fiber shine.

Answer 1

The Correct Option is A

Step 1: Purpose of adding TiO\textsubscript{2}.
Synthetic fibers (polyester, nylon, acrylic) are naturally shiny. To reduce this shine, a delusterant is added. Titanium dioxide (TiO\textsubscript{2}) and geranium oxide are common delusterants.
Step 2: Role of delusterants.
Delusterants create small particles within the fiber, scattering light. This reduces brightness, giving the fiber a dull, cotton-like appearance.
Step 3: Option analysis.
- (A) Delusterant: Correct; TiO\textsubscript{2} and geranium oxide function as delusterants.
- (B) Moderant: Incorrect; this term is not used in fiber production.
- (C) Chelating Agent: Incorrect; these are used for binding metal ions in water treatment.
- (D) Oxidising Agent: Incorrect; no oxidation occurs here.
Step 4: Conclusion.
Titanium oxide and geranium oxide are delusterants used in fiber spinning.