NYLON DOPE DYED YARN FOR COSMETICS AND PROCESS FOR PREPARING THE SAME

摘要

The present invention relates to a cosmetic nylon dope-dyed yarn and a production method thereof. The production method includes the following steps: melting-spinning a nylon mn (m, n >= 6) chip containing less than or equal to 5 wt% of carbon black and then solidifying the same so as to produce an undrawn yarn; adding less than 0.4 wt% of spinning oil to the produced undrawn yarn; and elongating and relaxing the oil-added undrawn yarn on at least two godet rollers. According to the present invention, the method ensures excellent color expression compared to an existing method and omission of a dying process.