Thin, porous textile fabrics that are predominantly cellulosic in content are partic- ularly prone to smoldering when exposed to a low energy, localized heat source such as a cigarette fire cone. A thermal imaging technique for measuring transient temper- ature fields is used to study smoldering ignition in upholstery fabrics with a simulated cigarette source. A method is described for measuring dynamic surface temperature and en- gradients. Empirical data are presented in terms of peak surface temperature and en- closed area within specific isotherms.
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