Pulping process

Production Process Flow of Dry - Pressed Paper Trays (from Corrugated Paper to Finished Products) Raw Material Processing: The corrugated paper from cartons is crushed and impurities (such as tapes and metals) are removed to obtain clean corrugated paper sheets. Pulping: The corrugated paper sheets are put into a pulping machine. Water is added, and a cutter head is used to break them down into dispersed fiber pulp, resulting in a preliminary thick pulp. Pulp Adjustment: Water is added to adjust the concentration of the pulp to the required level. The pulp is continuously stirred to form a uniform slurry, which is then pumped to a pulp supply tank for the next process (molding). Molding: The pulp is supplied to the pulp tank of the molding machine. Through the operation of the molding die, vacuum adsorption, and mold - closing for dehydration and shaping, wet blanks are formed. Drying: The wet blanks are thoroughly dried by a moving hanging basket line, a drying room, or an air shed. Shaping: The completely dried semi - finished products are heated and pressed by a shaping machine through mold - closing to obtain finished products that are flat, smooth, and aesthetically pleasing. Quality Inspection: Edges are trimmed and burrs are removed (if necessary). The dimensions, strength, and appearance are inspected. Qualified products are packaged and stored in the warehouse. Core of the Process The core process is pulping → pulp adjustment → pulp supply → compression molding → dry