| 摘要 |
This invention relates to a mulilayer spunlaced nonwoven composite useful as a fire blocking component for an article, an article such as furniture or a mattress comprising the nonwoven composite, and processes for making the nonwoven composite and fire blocking an article with the nonwoven composite. The multilayer nonwoven composite comprises a first layer comprising 75 to 2 5 weight percent regenerated cellulosic fiber that retains at least 10 percent of its fiber weight when heated in air to 700~C at a rate of 20 degrees C pe r minute and 25 to 75 weight percent heat-resistant fiber, said first layer having a basis weight of from 1 to 5 ounces per square yard (34 to 170 grams per square meter); and a second layer comprising up to 75 weight percent of a regenerated cellulosic fiber that retains at least 10 percent of its fiber weight when heated in air to 700~C at a rate of 20 degrees C per minute, and 25 to 100 weight percent of a modacrylic fiber, said second layer having a basis weight of from 1 to 5 ounces per square yard (34 to 170 grams per squa re meter), the nonwoven composite having a total basis weight of from 2 to 7 ounces per square yard (68 to 237 grams per square meter). |
