EFFECT OF TIN-TREATMENT ON FRICTIONAL ELECTRIFICATION OF PROTEASE-TREATED CHINON FABRIC

Abstract

When Chinon fabric was treated with some proteases to introduce micro-void spaces by eliminating the protein component in its unit fibers, frictional electrification of the fabric apparently increased. It was found that the electrification was effectively prevented by depositing insoluble tin phosphate in the micro-void spaces of the unit fibers. This effect was ascribed to a significant increase in the electric conductivity of the fabric by the insoluble and highly hygroscopic tin salt. Furthermore, the deposited salt was mostly held in the fabric even after washing under home laundry conditions. Thus, the effect to prevent frictional electrification was considered to be practically durable in the protease-treated Chinon fabric. It was also confirmed that the tin-treatment as well as the enzyme-treatment gave no practical effect on various physical properties of Chinon fabric except for the frictional electrification and dyeing property.