| 摘要 |
PURPOSE:To obtain a dyed material of high concentration having excellent fastness to dyeing by subjecting the cellulosic fiber structure treated with liquid ammonia to a specific continuous dyeing method using a middle temperature type reactive dye. CONSTITUTION:A cellulosic fiber structure treated with liquid ammonia is subjected to padding in a dyeing solution containing a middle temperature type reactive dye and an alkali agent (preferable example, sodium bicarbonate or sodium carbonate), then intermediately dried and then solidified with dry heat. Then the dyed cellulosic fiber structure is subjected to padding in an alkali solution containing an alkali agent (preferable example, sodium caustic soda or sodium silicate), solidified with steam heat, then cleaned and washed with water to give a dyed material colored in a much higher concentration than a conventional method, having excellent fastness. |
