Abstract
The puckering of machine-sewed cloth after washing depends very much on the nature of cloth and the tension of thread. The experiment was made with B-cloth, T-cloth and calico.
B-cloth shrinks slightly and hence shows the greatest puckering rate. Also this rate largely depends on the thread used and tension of the thread.
Since T-cloth or calico shrinks very much in washing, the puckering rate is generally small regardless of the kind of thread used and tension of the thread.
