Study of the chemical and physical properties of clay used in crafts

Abstract

This research aims to study the chemical and physical properties of clay for handicrafts. and study the use of various types of colors for modeling clay in handicrafts. The study was conducted based on the characteristics of 3 types of clay, consisting of Japanese clay, Thai clay, and paper clay slip. The factor studied was the type of paint used in the study, divided into 3 types, consisting food coloring, acrylic paint, and oil paint. And study the amount of color, varying it into 2 levels, consisting of 5 and 10 percent of the weight of the clay. Plan the experiment using Factorial in CRD. There will be a total of 6 experimental items per type of clay. The results found that each type of clay is suitable for mixing different colors. Japanese clay is suitable for mixing with acrylic paint in the amount of 10 percent of the weight of the clay for sculpting with a moisture percentage of 39.32 and a pressure resistance value of 10.43 newtons. For Thai clay is suitable for mixing with food coloring in the amount of 10 percent of the weight of the molding clay with a moisture percentage of 18.91 and a pressure resistance value of 10.43 newtons. Finally, paper clay slip is suitable for mixing with oil paint in the amount of 5 percent of the weight of the clay with a moisture percentage of 25.16 and a pressure resistance value of 12.43 newtons. The clay used in the craft is suitable for molding products in a variety of forms according to the texture of each type of clay.