초록
폴리에스테르필라먼트살를 텍스쳐 조건을 달리하여 텍스쳐 가공을 한 후 20~25$0^{\circ}C$에서 열응력을 측정하여 텍스쳐 조건.즉 피이드비, 살속, 히이터온도의 열응력에 미치는 영향을 검토하여 다음 결과를 얻었다. 텍스쳐 공정의 장력이 증가할수록 열응력곡선의 극치온도들은 감소하고 텍스쳐 온도가 증가하면 제1극치응력은 감소하고 그 온도는 증가한다. 제1 및 제3극치의 합은 실험범위내에서는 거의 일정하다. 또 최대손실정접온도는 제2극치온도와 거의 일치하고 텍스쳐 조건은 최대손실정접에는 거의 영향을 미치지 않는다.
The thermal stress of PET textured yarns which were textured at various feed ratios, speeds and temperatures were measured in the temperature range of 2$0^{\circ}C$ to 25$0^{\circ}C$ by using the Kanebo Engineering thermal stress tester. Effects of the feed ratio, speed and temperature on the thermal stress curves of PET textured yarns were investigated on the basis of the experimental results. As the tension of texturing process increases, all the peak temperatures decrease and second peak temperature does more rapidly than others. As the temperature of texturing process increases, the first peak stress decreases, but its temperature increases. Sum of the first and the third peak stresses remains almost constant in the entire experim ental ranges. The temperature of maximum loss tangent coincides nearly with the second peak temperature, and texturing condition seems not to affect the maximum loss tangent.