Julie Anne O. Jardiolin, Thea Vanessa H. Pondoc, Tom Michael S. Tan (February 2000)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
This study aimed to determine the effects of sodium hypochlorite and hydrogen peroxide as bleaching agents in making high grade handmade paper from rice straw in terms of color, smoothness, tearing strength, and folding endurance. It also aimed to determine which agent, sodium hypochlorite or hydrogen peroxide, is a better bleaching agent in increasing the quality grade of handmade paper from rice straw in terms of color and smoothness. It was hypothesized that handmade paper from rice straw treated with sodium hypochlorite and hydrogen peroxide shows no significant difference in the quality grade of the papers produced as to color, smoothness, tearing strength, and folding endurance. It was also hypothesized that handmade paper from rice straw treated with sodium hypochlorite and hydrogen peroxide shows no significant difference in the quality of paper as to color, smoothness, tearing strength, an folding endurance compared with high grade commercial paper.