FR (Flame Resistant) and IFR (Inherently Flame Resistant) fabrics are both designed to provide protection against flames, but they have distinct differences in their properties, manufacturing processes, and applications. Here's a detailed comparison:

FR (Flame Resistant) Fabric:

Definition:
FR fabric is treated with a flame-retardant chemical after the fabric is made. This treatment helps the fabric resist ignition, prevent flames from spreading, and self-extinguish when the flame source is removed.

Composition:
Typically made from natural fibers like cotton or blends, which are then chemically treated to enhance flame resistance.

Performance:
The flame-resistant properties depend on the effectiveness of the chemical treatment.
Over time, the effectiveness can diminish, especially with frequent washing and wear.

Applications:
Used in industries where flame resistance is needed but the durability of the fabric is less critical, such as welding, electrical, and petrochemical industries.

Maintenance:
Requires careful washing and maintenance to preserve flame-resistant properties.
Laundering with harsh chemicals or at high temperatures can reduce the effectiveness of the flame-retardant treatment.

IFR (Inherently Flame Resistant) Fabric:
Definition:
IFR fabric is made from fibers that have flame-resistant properties built into their chemical structure. These properties are inherent and do not wash out or wear off over time.

Composition:
Made from synthetic fibers such as aramid, modacrylic, or other engineered fibers designed to resist flames inherently.

Performance:
Provides consistent flame resistance throughout the life of the garment.
Generally more durable and resistant to wear and tear compared to treated FR fabrics.

Applications:
Used in environments where long-lasting flame resistance and durability are critical, such as in firefighting, military, and aerospace applications.

Maintenance:
Easier to maintain as the flame-resistant properties are not affected by laundering.
Can withstand more rigorous washing conditions without compromising flame resistance.

FR Fabric: Flame-resistant properties are due to chemical treatments. Over time, these properties can diminish, and they require careful maintenance. Suitable for applications where the fabric is not exposed to extreme conditions frequently.
IFR Fabric: Flame-resistant properties are inherent to the fibers. These properties are durable and long-lasting, requiring less maintenance. Suitable for high-risk environments where durability and consistent protection are crucial.

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