To provide a blue-based, spun-dyed and copolymerized para-aramid fiber excellent in heat resistance and weather resistance and to provide a lightweight fabric having high strength and high weather resistance using the aramid fiber and to provide clothing, fireman uniform, heat-resistant working wear, protective tool or the like composed of the fabric.
When spun-dyeing a copolymerized para-aramid fiber, inorganic pigment cobalt blue having a heat resistance of 500C is used to provide blue-based, spun-dyed, copolymerized para-aramid fiber, and further, combination of the cobalt blue with carbon black excellent in heat resistance and weather resistance is used to provide a navy-colored, spun-dyed, copolymerized para-aramid fiber and further, the fiber is used to provide blue or navy-colored heat-resistant fabric, protective fabric and protective tool excellent in high strength, chemical resistance and fastness to weathering and fastness to washing.
AKAMATSU TETSUYA
OZAKI HIROMI
Next Patent: HEAT-RESISTANT, WATER-REPELLENT AND OIL-REPELLENT FINISHED FABRIC