Flame resistant fabric useful as batting in mattresses and upholstery

Abstract

Flame resistant fabrics useful as battings such as in mattresses and upholstery contain cellulose fibers (which retain at least 10 percent of their weight when heated in air to 700° C. at a rate of 20° C. per minute) and animal wool.

1 . A flame resistant fabric consisting essentially of:
 (a) cellulose fibers containing hydrated silicon dioxide in the form of silicic acid with aluminum silicate sites which fibers retain at least 10 percent of the weight when heated in air to 700° C. at a rate of 20° C. per minute, and   (b) animal wool,   (c) binder,   wherein (b) is present in a range from 20 to 50% by weight on a basis of (a) and (b),   wherein the fabric is non-woven and   wherein the fabric has a thermal performance temperature in a range of 125° C. to 500° C.; and   wherein, the fabric has a compression at least 40% measured at 24 hours in accordance with modified ASTM D6571-01.   
   
   
       2 . The fabric of  claim 1  with a thermal performance temperature in a range from 200° C. to 400° C. 
   
   
       3 . The fabric of  claim 1  with a density in a range from 0.3 to 6.0 pounds per cubic foot (5 to 96 kilogram per cubic meter). 
   
   
       4 . The fabric of  claim 1  having a basis weight in a range from 3 to 18 ounces per square yard (102 to 610 grams per square meter). 
   
   
       5 . The fabric of  claim 8  having a basis weight in a range from 4 to 12 ounces per square yard (136 to 407 grams per square meter). 
   
   
       6 . The fabric of  claim 1  when tested in a mattress according to the State of California test standard TB603 results in a peak rate of heat release less than 200 kw during the 30 minute test duration and a total heat release less than 20 MJ within 10 minutes of test start. 
   
   
       7 . The fabric of  claim 1  present as a batting in an article of manufacture. 
   
   
       8 . The fabric of  claim 1  present in a mattress. 
   
   
       9 . The fabric of  claim 1  present in furniture.