Process loss in textile processing is a must occurring issue due to suitability in the subsequent process& removal of unwanted materials. But there should be a minimum range of process loss% in each process and a data is required to calculate accurate process loss% in each process. Our experiment is to calculate process loss% in a pretreatment process up to enzyme wash and finally treated with silicon wash. If the calculation in process loss% is not accurately calculated, there is serious effect on garment cutting and sewing section due to shortage in fabrics and finally short quantity is become essential that is an economic issue and most unwanted matter in a composite factory. Our finding is different power loss% for different structured fabric for chemical concentration. Here is our focusing issue is that process loss% is not same for different structured fabric even considering same concentration