Unit 3 Lecture 20 Topic 1

Question 1

What defines a non-woven fabric?

Answer 1

Non-woven fabrics are made directly from fibres. They have a web structure to lower costs– sometimes half the cost of woven fabrics. Non-woven fabrics are used in technical, apparel, and interior items.

Question 2

How are non-woven fabrics classified?

Answer 2

Non-woven fabrics may be classified as durable products (multiple use) or disposable products (single use).
Durable: e.g. blankets, carpet backings, interfacings for apparel
Disposable: e.g. wipes, disposable diapers, hygiene products, packaging.

Question 3

Oriented Fibre Webs:

Answer 3

Fibres lie mostly in the lengthwise direction of fabric and strength is greater in the direction of orientation.

Question 4

Cross-laid Fibre Webs:

Answer 4

Fibres are oriented lengthwise then crosswise in the next layer to help create strength in both directions.

Question 5

Random Fibre Webs:

Answer 5

Fibres lie in all directions within the web and strength is uniform in all directions.