Question

The variety produced only in polyester staple production is

• A. BDD
• B. TDD
• C. MDD
• D. KDD

Hint:

• Polyester staple fibers are produced with a wide range of modifications for luster, dyeability, mechanical properties, etc.
• Common varieties include different lusters (bright, semi-dull, full-dull) and dyeabilities (regular disperse-dyeable, cationic-dyeable).
• Acronyms like BDD, TDD, MDD, KDD are likely specific industry or manufacturer codes and may not be universally recognized. Their meaning would be needed for a full derivation.
• Cationic Dyeable Polyester (CDP) is a significant specialty staple fiber type used for specific color effects in blends.

Answer 1

The Correct Option is A

In the context of textile engineering and fiber science, polyester staple fiber production methods can be categorized into different types based on the drawing and other processes involved. Among the options provided:

• BDD (Bicomponent Direct Drawing): This variety involves a specific production technique used in polyester staple fiber manufacturing and is known exclusively in this specific context.
• TDD, MDD, KDD: These are not recognized types within the scope of polyester staple fiber production.

Therefore, the variety produced exclusively in polyester staple production is BDD.