Abstract
In order to provide a variety of fabrics and constructions which meet the Children's Sleepwear Standard, DOC FF-3-71, Celanese has developed flame retardant variants of two of its fibers. Acetate filament was developed for the warp knit segment of the sleepwear market and Arnel® triacetate for use in blends with polyester for circular knits and wovens. In the course of this development the effect of fabric construction on flammability performance was explored, as well as the influence of dyeing and finishing chemicals such as dyes and carriers.
A fabric bulk factor is derived which is of value in predicting the residual flame time behavior of single knit polyester or triacetate/polyester jersey. In addition an attempt is made to correlate dye structure with its effect on flammability performance of Arnel triacetate/polyester blends.
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