PURPOSE: A manufacturing method of flame retardant stretch yarns with high sensibility through a yarn dyeing and a flame retardant methods is provided to remarkably reduce a cutting rate of the yarns produced in a weaving process. CONSTITUTION: A manufacturing method of flame retardant stretch yarns with high sensibility comprises the following steps: winding flame retardant yarns which are not easily burned in the fire on a bobbin of a constant size; processing the yarns for a dyeing and a flame retardant processes by passing the yarns through one bath; covering the yarns for making the flame retardant yarns.
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