Copy paper manufacturing technology

Paper mills generally need to store enough raw materials for 46 months so that they can undergo natural fermentation in storage to facilitate pulp making and ensure continuous production. After the preparation section of the reed, straw and wood and other raw materials cut into pieces of material or wood and then put the small pieces of raw materials into the cooker with chemical liquid, steam cooking, the raw materials cooked into pulp, or send the wood break to the wood mill to grind into pulp, but also after a certain degree of cooking and then grinding into pulp. Then the pulp is washed with fresh water, and the coarse pieces, knots, stones and sand are removed from the pulp through screening and purification. The pulp is then bleached to the required whiteness with a whitening agent according to the requirements of the paper grade, followed by pulping using pulping equipment. Then add filler, glue, sizing agent and other auxiliary materials to improve the performance of the paper, and again for purification and screening, and finally sent to the paper machine after the net source of water, press dehydration, drying cylinder, calendering roll, and slitting rewinding or cutting to produce rolls of paper and flat paper. If the production to produce coated printing paper, it is necessary to dry the middle or production into the roll paper after the coating process and achieve.