Inherent FR (IFR)

"User Comfort & Safety is our motto"

Aramid Blended IFR fabrics

The word “INHERENT” was not originally a textile or Flame Resistant term. Its definition varies slightly from source to source, but the common thrust is “by its very nature, built-in, implicit.” Garments made from inherent Flame Retardant fibers will be inherent by their nature.
On the other hand, “treated” is usually defined as chemical engineering to impart properties not previously present.

Nature provides very few FR fibers, the most well known of which is asbestos, which is obviously not in common use in protective apparel in North America today. Conversely, all flame resistant fibers in common use today for industrial protective apparel are engineered by humans — using chemistry — to be flame resistant.

What is important is not how the engineering was accomplished, but that is was accomplished correctly and consistently, so that a garment maintains its flame resistance weeks, months and years later –– regardless of how many times it is laundered.

Inherent Flame Retardant Garments retain their Flame Retardancy for the life of the garment doesn't matter how many times they are laundered.