AF in fabric generally stands for Other Fibres. This is a generic term used in textile labeling to indicate the presence of fiber content other than the main fiber(s) specified.
Understanding "Other Fibres"
When a fabric is labeled with a fiber composition percentage, "AF" (Other Fibres) accounts for the remaining percentage that isn't cotton, polyester, wool, or any other explicitly named fiber. It essentially covers any fiber present in smaller quantities.
Examples of Fibers Covered by "AF"
The "Other Fibres" designation can include a wide array of materials, such as:
- Elastane (Spandex/Lycra): For stretch and recovery.
- Acrylic: For a wool-like feel and warmth.
- Nylon: For strength and durability.
- Rayon/Viscose: For softness and drape.
- Metallic Fibers: For decorative effects.
- Linen, Hemp, or other plant-based fibers: If present in small amounts and not the main fiber.
Why is "AF" Used?
There are several reasons why "AF" might be used instead of specifically naming every fiber present:
- Minor Quantities: If a fiber constitutes a very small percentage of the overall composition (often below a certain threshold defined by labeling regulations), manufacturers may choose to group it under "Other Fibres."
- Complexity: Listing every single trace fiber can become cumbersome, especially in complex blends.
- Proprietary Blends: Sometimes, manufacturers use proprietary fiber blends and prefer not to disclose the exact composition.
- Cost Efficiency: It can be more cost-effective to use a general term rather than testing for and listing every specific fiber.
Interpreting "AF" on a Fabric Label
When you see "AF" on a fabric label, it's important to consider the context. A higher percentage of "AF" might indicate a more complex blend, while a lower percentage suggests it represents a minor addition to the main fiber. If you have specific requirements (e.g., avoiding synthetic fibers), further investigation might be necessary if the "AF" percentage is significant.
