Beating method for pulp inner core layer

Abstract

The invention discloses a pulping method for an inner core layer of paper pulp. The method comprises the following operating steps: A, firstly pulping recycled waste paper, enabling the pulp to pass through a 50-mesh sieve, and pulping the obtained residue again until the residue passes through the 50-mesh sieve so as to obtain first-time slurry; B, adding lime powder and orange peel powder into the first-time slurry, uniformly mixing the mixture, pulping the mixture, then putting the mixture in a 100-mesh centrifugal machine to obtain filter residues, then pulping the filter residues, centrifugalizing the filter residues, and repeatedly pulping and centrifugalizing the filter residues to obtain second-time centrifugal slurry; C, then putting the pulped second-time centrifugal slurry in a 150-mesh centrifugal machine to obtain filter residues, then pulping the mixture, centrifugalizing the mixture, and repeatedly pulping and centrifugalizing the mixture to obtain third-time centrifugal slurry; D, enabling the pulped third-time centrifugal slurry to pass through a 200-mesh centrifugal machine to obtain fourth-time centrifugal slurry; and E, boiling and concentrating the fourth-time centrifugal slurry and hammering the slurry through a striking hammer to obtain a finished product. The technical problem to be solved by the invention is that the pulping method for the inner core layer of paper pulp with relatively good fineness and low cost is provided.

Description

technical field [0001] The invention relates to the field of waste paper recycling, in particular to a beating method for pulp inner core layer. Background technique [0002] Paper is an important invention of the working people of the Han nationality in ancient times. In ancient times, ancestors mainly relied on knotting to record events, and then gradually invented characters, and began to use oracle bones as writing materials, and later discovered and used bamboo chips, wood chips, and silk as writing materials. However, because silk was too expensive and bamboo chips were too bulky, paper was produced. One of the four great inventions in ancient China, papermaking, together with the compass, gunpowder, and printing, provided a material and technological foundation for the prosperity of ancient Chinese culture. The invention of paper ended the complicated history of bamboo slips and slips in ancient times, and greatly promoted the spread and development of culture. Pap...

AI Technical Summary

Problems solved by technology

But the cost of processing is high, so the inventor invented a method that can mix waste paper pulp with new wood pulp to make paper, that is, the center layer is an inner core layer made of waste paper pulp, and the outer layer is made of waste paper pulp. The outer layer is made of wood pulp. However, this method has higher requirements for the fineness of the inner core pulp, but does not require the color of the pulp, otherwise it will cause poor hand feeling