Shandong medical consumables wholesale Editor told you Molded pulp from papermaking technology
1. Raw material processing technology and equipment are basically the same. If use waste paper raw material to produce cardboard, passes through waste sorting, hydrapulper pulp, beater or pulping machine pulping, pulp sizing, mixing process, such as pump again to dipping paper machine dryer for sheet forming, pressing dehydration, drying process become a paper products. Using wheat straw pulp or waste paper pulp molding production raw material, also want to after hydrapulper pulp, beater or pulping machine pulping, pulp sizing, mixing process, go up to the paper plastic molding machine for molding, extrusion process of dehydration, drying, integer, become a qualified paper pulp molding products. In the process of synthesis of two kinds of material handling equipment can even gm, just differ in terms of molding and drying equipment.
2. The forming principle of similar, but different in the form of finished products. Molded pulp and paper and cardboard production is is made of wet forming method for forming, and dehydration, drying, become a finished product. Processes for the production of paper pulp molding characteristics different from the traditional paper production process is: paper or paperboard is in dipping paper machine wet ministry of pulp "into" (long net paper machine), or "to" (mould machine) forming network (metal mesh or plastic mesh) on dehydration forming, wet sheet and dry product is continuous flat ribbon, and rolled into the drum shape form; And paper pulp molding products is "to" in the molding machine molding network (mold with metal mesh or plastic mesh) on dehydration forming, die blanks are mostly intermittent wet paper sheet output, the finished product is a solid material or container.
3. The forming different drying equipment. Dipping paper machine of paper or board is compared commonly big, become an organic whole repeatedly molding and drying equipment. Molded pulp molding machine and drying machine can be set separately, individually or in combination.