Dependence of Treatment Concentration on Water Absorption and Bending Resistance for Cotton Fabric Treated with Household Softener and Starch

Abstract

  The treatment of preventing the water absorption from declining after treatment with softener was investigated. Cotton fabric was treated in 5 minutes with commercially available household softener and starch. The height of absorbed water and bending resistance were determined on the cotton fabric. The height of absorbed water after treatment with the softener was the minimum when the softener concentration was 0.44ml/l, and that after treatment with the starch was the minimum at the starch concentration of 4ml/l and the maximum at the starch concentration of 40ml/l. The height of absorbed water after treatment with the mixture at a fixed softener concentration and increasing starch concentration was the maximum at the starch concentration of 8ml/l, and the bending resistance after treatment with the mixture increased. The height of absorbed water after treatment with the mixture at a fixed starch concentration and increasing softener concentration was the maximum when the softener concentration was 0.11ml/l, and the bending resistance after treatment with the mixture decreased. The height of absorbed water after treatment with the mixture at increasing softener concentration and increasing starch concentration decreased gradually, and the bending resistance after treatment with the mixture increased. The height of absorbed water after treatment with the mixture at increasing softener concentration and decreasing starch concentration was the minimum when the softener concentration was 0.88ml/l and the starch concentration was 2ml/l. The treatment with the mixture at increasing softener concentration and increasing starch concentration prevented the decrease in the height of absorbed water and reduced the increase in the bending resistance, when the softener concentration was 0.11ml/l or less and the starch concentration was 4ml/l or less.