f for about two minutes in the second step the resin treated fabric was padded with a mix containing 26 gallons of thps urea condensate per 50 gallons of water the fr treated fabric was dried at approximately 270 u00b0 f to about 10 moisture the fr fabric was ammoniated oxidized washed and framed the fabric was then evaluated for hand and drape it was not soft durability of the flame retardant process was good but this was an off the shelf ripstop with 52 fills per inch it may be necessary to design a more open ripstop fabric to get a more acceptable fabric perhaps 46 48 fills per inch the char length was only 4 1 inches after 50 home laundries a similar fabric produced using traditional methods and tested even before a single home laundry would not stop burning and the test sample was consumed instead in our example there was no molten nylon polymer in the burning zone the char would break down to a fine powder when pressed between the fingers and thumb there was no rigid plastic like residue the fabric treated in this example was a 4 4 oz sq yd jersey comb cotton the fabric was pretreated with a resin mix having 10 liters of tmmm per 50 gallons the treated fabric was cured at approximately 330 u00b0 f in the second step the resin treated fabric was padded with a mix containing 16 gallons of.