Patent ID: 7211293
Filing Date: 2007-05-01
Classification: D06B,D06M,Y10T

Abstract:
1. A process for applying a flame retardant composition to a first and second substrate each of which have at least a 5 weight percent of non-thermoplastic material, the process comprising: treating the first substrate in a first treatment vessel with the flame retardant composition which is free of dye or other contaminating agents; transferring a first remaining portion of the flame retardant composition from the first treatment vessel to a second treatment vessel; removing a first excess portion of the flame retardant composition from the first substrate; drying the first substrate to a first desired moisture content; treating the second substrate in a second treatment vessel which is different from said first treatment vessel with a flame retardant composition which includes the first remaining portion of the flame retardant composition transferred in said transferring a first remaining portion step; transferring a second remaining portion of the flame retardant composition from the second treatment vessel to the first treatment vessel; removing a second excess portion of the flame retardant composition from the second substrate; and drying the second substrate to a second desired moisture content.