Colorful Tracing Paper Parchment Paper Used for Envelope Packaging

Tracing paper, commonly known as sulphate paper. It is made of fine plant fibers through interweaving, in the wet state through free beating, no sizing, no fillers, paper making, 72% of concentrated sulfuric acid soaked for 2~ 3S, washed with water and treated with glycerin, dried after the formation of a germplasm hard film type material. Sulphate paper solid texture, dense and slightly transparent, with oil and water penetration resistance is strong, airtight, and wet strength and other characteristics, waterproof, moisture-proof, oil-proof, sterilization, disinfection.