HYGROSCOPIC EXOTHERMIC ACRYL FIBER, HYGROSCOPIC EXOTHERMIC FIBER PRODUCT, AND METHOD FOR PRODUCING THE SAME

摘要

To provide a hygroscopic exothermic acryl fiber that has an excellent hygroscopic exothermic ability and has no stickiness feeling.SOLUTION: A hygroscopic exothermic acryl fiber is produced, wherein, when immersing an acryl fiber in an aqueous solution containing an alkali compound and a quaternary ammonium salt and is changed from the condition of temperature 20°C and relative humidity 40% to the condition of temperature 20°C and relative humidity 90%, a temperature rise ΔT of the fiber surface is 2°C or more.SELECTED DRAWING: None