| abstract |
(57) Abstract: A polyester fiber cloth having no coating resin layer, in which the fastness of dyeing, especially the fastness of alkaline sweat, is remarkably improved in spite of the high dye concentration used, and To provide a manufacturing method thereof. SOLUTION: In a cloth mainly composed of dyed polyester fibers and having an L * value of 40 or less, the amount of dye extracted when the polyester fibers constituting the cloth are extracted with ethanol is 2.0 × 10 -4 g / g / fiber or less, and the alkaline sweat fastness after the wet heat deterioration accelerated test of the fabric is 4 Grade or higher. |