부가형 반응염료로 염색된 면직물의 발염에 있어 발염제에 관한 연구 -여러가지 약제들에 의한 발염 가능성-

Study on Discharging Agent for Discharge Printing of Fabrics Dyed with Vinylsulfonyl Reactive Dyes ―Discharge Possibility of Some Chemicals―

In discharge printing of cotton fabrics dyed with C.I. Reactive Orange 16(O-16), C.I. Reactive Blue 19(B-19) and C.I. Reactive Black 5(Bl-5), when the dyes were discharged by some chemicals, such as <TEX>$K_{2}CO_{3}$</TEX>, BASB, DSR, sarcosine and GSB, the single use of those chemicals made a very poor discharge, but mixing them with <TEX>$K_{2}CO_{3}$</TEX> resulted to the outstanding improvement of discharge. Especially the dischargeability of <TEX>$K_{2}CO_{3}$</TEX> BASB or <TEX>$K_{2}CO_{3}$</TEX>+DSR was very gratifying. For O―16, <TEX>$K_{2}CO_{3}$</TEX>+ DSR was slightly more effective than <TEX>$K_{2}$</TEX>CO<TEX>$_{3}$</TEX>+BASB, but for B―19 and Bl―5 <TEX>$K_{2}CO_{3}$</TEX>+BASB and <TEX>$K_{2}CO_{3}$</TEX>+DSR showed similar good results. In discharging of O―16 and B―19 by <TEX>$K_{2}CO_{3}$</TEX>+BASB or <TEX>$K_{2}CO_{3}$</TEX> +DSR, the dischargeabilities of them increased as the time of 102<TEX>$^{circ}C$</TEX> steaming increased under the condition of 102<TEX>$^{circ}C$</TEX> steaming and no baking, but not under the condition of 102<TEX>$^{circ}C$</TEX> steaming and 16<TEX>$0^{circ}C$</TEX> baking. However for Bl-5, without regard to baking, the 102<TEX>$^{circ}C$</TEX> steaming of more than 15 minutes caused the discharge to be much more remarkable than that of 8 minutes did. Generally baking elevated the dischargeability, and this was sure in discharging by <TEX>$K_{2}CO_{3}$</TEX>+BASB or <TEX>$K_{2}CO_{3}$</TEX>+DSR. And it was confirmed that the structure of vinylsulfonyl reactive dyes could effect on the dischargeability because the three dyes, though little, showed different discharge behaviors.