Abstract
The seam tensile strength was tested by means of Grab-method, using three kinds of cloths, such as the plain, twill and satin weaves, which were cut on the angles of 0°, 30°, 45°, 60°, 120°, 135°, 150°, and 180°. The eight kinds of the combinations of a pair of these cloths were made and sewn on the bias angle.
1) The seam tensile strength of each combination of the bias cloths was equal to or stronger than that of the original cloth, when they were pulled at right angle to the seam.
2) The seam tensile strengths were compared in the following three cases : (1) the sewn cloths of two pieces cut at the angle of 30° and those of 30° and 120°, (2) 45° and those of 45° and 135°, (3) 60° and those of 60° and 150°. The sewn cloths of the pieces cut on the same angle indicated the stronger seam tensile strength than that of the sewn cloths at different angle, and the strength appeared differently according to the order of 60°> 30°> 45°.
