The Effect of Temperature and Laundering Soap Type on Some properties of Seam SSa-1

Textile industry is a leading industry within the consumables_ industries all over the world, so it is a source of the national income in many countries including EGYPT. The aim of the present work is to study effect of both temperature and laundering soap type on shrinkage and tensile strength of the seam SSa-1 using cotton 100%, Plain 1/1 weave Fabric. Seams with densities of 30, 40, and 50 stitch/10cm were produced. Sample length, tensile strength, and seam puckering were measured before and after laundering. The results showed that there is a significant effect of the testing variables (temperature, soap type, and stitch density) on the measured properties. Shrinkage ratio decreased with the increase of temperature at the levels of density and soap type, the tensile strength had the same trend. Soap type2 showed a higher shrinkage ratio than type1, a higher tensile strength was measured with type2 also. This might be due to the higher shrinkage occurred with type2, the higher negative effect of soap type1 on the seam is to be considered.