Polyvinyl alcohol (PVA) is a versatile synthetic polymer recognized for its water solubility, excellent film-forming abilities, and adhesive properties. Among its various forms, partially hydrolyzed polyvinyl alcohol stands out due to its unique balance of solubility, mechanical strength, and functional adaptability. This makes it an essential material in a variety of industrial and commercial applications. polyvinyl alcohol partially hydrolyzed is derived from the polymerization of vinyl acetate, followed by a controlled hydrolysis (or alcoholysis) process. During hydrolysis, the acetate groups in polyvinyl acetate are replaced with hydroxyl groups. The degree of hydrolysis indicates the percentage of acetate groups converted into hydroxyl groups. Partially hydrolyzed PVA typically has a hydrolysis degree between 85% and 90%, distinguishing it from fully hydrolyzed PVA, which has a degree of hydrolysis above 98%.