Question:
The nonwoven fabrics manufactured using different bonding techniques are:
A. mechanical bonding
B. covalent bonding
C. chemical bonding
D. thermal bonding
Choose the correct answer from the options given below :
The nonwoven fabrics manufactured using different bonding techniques are:
A. mechanical bonding
B. covalent bonding
C. chemical bonding
D. thermal bonding Choose the correct answer from the options given below :
A. mechanical bonding
B. covalent bonding
C. chemical bonding
D. thermal bonding Choose the correct answer from the options given below :
Show Hint
The "Big Three" of non-woven bonding are Friction (Mechanical), Glue (Chemical), and Heat (Thermal).
Updated On: May 26, 2026
- A, B, D only
- A, B, C only
- B, C, D only
- A, C, D only
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept:
Non-woven webs are "loose" structures of fibers that must be "bonded" or consolidated to gain strength and integrity as a fabric.
Step 1: Identifying Bonding Categories.
• A (Mechanical bonding): Fibers are interlocked physically, such as through needle punching or hydroentanglement (water jets).
• C (Chemical bonding): An adhesive binder or "glue" is applied to the web to stick the fibers together.
• D (Thermal bonding): Heat is applied to melt low-melting-point fibers or powders within the web, which then act as a binder upon cooling.
Step 2: Exclusion.
B (Covalent bonding) is a type of primary chemical bond at the atomic level. While some chemical binders may involve covalent bonds, "covalent bonding" is not a recognized classification for non-woven manufacturing processes.
Step 1: Identifying Bonding Categories.
• A (Mechanical bonding): Fibers are interlocked physically, such as through needle punching or hydroentanglement (water jets).
• C (Chemical bonding): An adhesive binder or "glue" is applied to the web to stick the fibers together.
• D (Thermal bonding): Heat is applied to melt low-melting-point fibers or powders within the web, which then act as a binder upon cooling.
Step 2: Exclusion.
B (Covalent bonding) is a type of primary chemical bond at the atomic level. While some chemical binders may involve covalent bonds, "covalent bonding" is not a recognized classification for non-woven manufacturing processes.
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