Wool is a natural fiber with lower heat release/flammability than some synthetic fabrics, but it has not been well studied for its heat release when other fibers such as cotton, linen, and nylon are present in the woven fabric. In this article, the heat release and vertical flame spread of six commercially available natural color fabrics is reported. This includes 100% wool, 80% wool/20% nylon, 70% wool/30% linen, 45% wool/55% cotton, and 40% wool/38% cotton/12% nylon/10% metallic thread fabric. Heat release was measured through cone calorimetry (ASTM E1354) as a function of the sample mounting method, through microscale combustion calorimetry (ASTM D7309), and flame spread was measured by ASTM D6413. The type of insulated backing used greatly affected the cone calorimeter results, and fabric types did show some effects in vertical flame spread and microscale combustion calorimeter testing.

中文翻译：

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羊毛/纤维素和羊毛/合成纤维混纺的可燃性测试：垂直火焰蔓延和热释放结果

羊毛是一种天然纤维，其放热/易燃性比某些合成织物低，但在机织织物中存在棉、亚麻和尼龙等其他纤维时，羊毛的放热问题尚未得到很好的研究。在本文中，报告了六种市售天然彩色织物的热释放和垂直火焰蔓延。这包括 100% 羊毛、80% 羊毛/20% 尼龙、70% 羊毛/30% 亚麻、45% 羊毛/55% 棉和 40% 羊毛/38% 棉/12% 尼龙/10% 金属线织物。通过锥形量热法 (ASTM E1354) 作为样品安装方法的函数，通过微型燃烧量热法 (ASTM D7309) 测量热释放，并通过 ASTM D6413 测量火焰蔓延。所使用的绝缘背衬的类型极大地影响了锥形量热仪的结果，