Most of Drotex’s flame retardant fabrics are treated by FR chemicals. That is to say,the fabric itself is not flame retardant.
As a protective fabric manufacturer,we have a series of steps of treatment to make the fabric have a permanent FR performance.
The main principles of the FR finishing is to dig FR chemicals into the internal fiber of the fabric and thus change the molecular structure. So that the fabric can keep its FR performance even after 50 to 100 times of washing. That means workwear made of FR fabrics can keep FR property for the life of the garment.
Here are the specific procedures of FR finishing:
Impregnation→Drying→Curing with Ammonia→Oxidation Airing→Washing Off→Stentering→Pre Shrinkage→Finished→Packing.
Each steps are carried out by our workers strictly,in order to offer high quality products for you.
If you have any questions,please feel free to contact us.
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