In addition to the above basic process, it also includes some auxiliary processes, such as preparation of cooking liquid, preparation of bleaching liquid, boiling and boiling of glue, recovery of chemical and thermal energy in waste liquid and waste gas, etc..So dry paper is non-conductive
Paper mills generally need to store enough raw materials for 4~6 months, so that the raw materials in the storage of natural fermentation, in order to facilitate pulping, while ensuring the continuous production of paper mills. The preparation section in the reeds, wheat straw and wood materials such as cutting into the sheet (for the production of chemical pulp) or wood off (for production pulp), then small pieces of material into the digester with chemical liquid, cooking with steam, the boiled pulp of raw materials, or the wood cut to grinding machine on the ground pulp, can also be a certain degree after the cooking and then ground into a pulp. Then, with plenty of water for washing the pulp, and through the screening and purification of the crude slurry in the film, knots, stones and sand removal etc.. Then, according to the requirements of the paper, bleach bleach the required pulp to the desired whiteness, and then beat it with a beater. Then add in the pulp to improve the properties of paper packing, sizing, sizing agent and other auxiliary materials, and purification and screening again, finally sent a papermaking machine after net water filtering, dewatering, drying, calendering winding and rewinding to cut or cut production of paper and plate paper. If the production of coated printing paper production, you need to dry the middle or produced into a web paper, after coating processing to achieve.
Papermaking processThe production of general printing paper is divided into two basic processes: pulp and paper. Pulping is the use of mechanical methods, chemical methods, or a combination of the two methods, the plant fiber material dissociation into natural pulp or bleached pulp. Papermaking is the paper fiber which is suspended in water and is combined with various processing to meet the requirements of the paper pages.
