Use of liquid natural latex for the manufacture of waterproof canvas fabric

Abstract

Research on the use of liquid natural latex for waterproof canvas fabric coatings has been carried out by varying the volume of liquid natural latex in 4 levels, namely 0.5 liters, 1.0 liter, 1.5 liters, 2.0 liter, and varying the thickness of the coating material 10 g, 20 g, 30 g so that 12 types of waterproof canvas are obtained. The purpose of this study was to find the right formula in the manufacture of canvas fabric that has the properties of Water Resistance, Adhesion, Tensile Strength, Elongation at Break, and Tear Resistance according to the quality standards of woven fabrics for tents. The results of testing the physical properties of waterproof canvas fabrics as a whole almost meet the quality standards of woven fabrics for tents, except for the results of the waterproof strength test at a layer of 10 g. The best results were obtained in formula III with a coating of 20 g, getting water resistance values of 43.6 mBar, adhesive strength 0.8 kg/cm, tensile strength 88.2 kg and 77.8, elongation at break 40.8% and 20, 3%, Tear strength 21.5 kg and 19.4 kg for warp direction and weft direction.