No, flame resistance cannot be washed out of AR/FR (arc-rated/flame-resistant) clothing through regular laundering. AR/FR clothing is specifically designed and manufactured to provide flame-resistant properties, and these properties are typically inherent in the fabric itself. The flame resistance is not a coating or treatment that can be easily washed away.
However, it's important to follow the care instructions provided by the manufacturer to maintain the flame-resistant properties of your AR/FR clothing. These instructions often include washing guidelines, such as using mild detergents, avoiding bleach or fabric softeners, and washing in warm or cold water. By following the recommended care instructions, you can help ensure that your AR/FR clothing maintains its flame-resistant properties for as long as possible.
It's worth noting that over time and with repeated laundering, the flame-resistant properties of AR/FR clothing may diminish. Therefore, it's important to regularly inspect your clothing for any signs of wear or damage and replace it as necessary to ensure optimal protection.