아우트-웨어로 많이 사용되는 면, 마, T/C, 모, 면니트의 직물을 이용하여 반복세탁에 따른 수축률, 마모 강도, 인장 강도, 필링, 방추도 등의 물리적 성질 변화에 대해 연구 조사하였다. 또한 모섬유의 경우 각각의 물리적 성질에 있어서 건식 세탁과 습식 세탁에 의한 차이를 비교 검토하였다. 실험결과 반복 세탁에 의해 인장강도는 그다지 변화하지 않았으나 방추도가 크게 저하하였으며 pill의 발생이 크게 증가하였다. 습식 세탁에 의해 면니트는 처짐 현상을 보였고 모의 경우 고온, 고알칼리 하에서의 반복 세탁에 의해 큰 수축현상을 나타냈으며 이러한 수축은 두께의 증가를 가져와 마모 강도를 증가시키는 결과를 가져왔다. 건식 세탁모가 습식 세탁모에 비해 모든 물리적 성질에 있어 훨씬 우수한 것으로 나타났다.
Studied on the changes of physical properties according to frequency of washing of sample such as cotton, ramie, wool, cotton knit, T/C. The results are as follows :1. The tensile strength in cotton, wool, and T/C was not changed by 5 times washing but in cotten knit was increased because hang-down phenomenon. 2.The crease resistance of cellulose fiber was decreased by repeated washing. In the case of wool, That was decreased considerably because of decreasing of elasticity and increasing of density caused by shrinking after washing. 3.The abrasion strength of wool was increased with increase in frequency of washing because of thickness caused by shrinking. 4.By repeated washing, the pills was generated in all of the samples and quantity of pills was increased with increase in frequency of washing, the pills was generated in all of the samples and quantity of pills was increased with increased in frequency of washing. Specially, in the case of cotton knit and wool, the pilling was remarkable. 5.The physical properties of dry cleaned wool was superior than that of wet cleaned wool.
