Manufacturing technology for papermaking of white liner box board by use of total reclaimed waste paper

Abstract

The invention discloses a manufacturing technology for papermaking of a white liner box board by use of total reclaimed waste paper. The manufacturing technology comprises the following steps: step I, carrying out a sheet-making test in a lab to determine that a white liner box with required surface layer cleanliness, whiteness and bursting strength is wholly manufactured by paper raw materials (the surface layer adopts white wood-free paper waste, the lining layer adopts book paper and the bottom layer adopts total waste) through papermaking; step II, optimizing the manufacturing technology; step III, optimizing the printing performance of the white liner box board; step IV, optimizing the process flow. Through the mode, the raw materials can be improved, so that not only is more wood saved and equipment input reduced, but also the consumption of clear water is much reduced, electricity is saved, a printing ink is prevented from entering a wastewater treatment plant, and emission of pollutants is reduced.

Description

technical field [0001] The invention relates to the field of boxboard manufacturing, in particular to a production process for making white linerboard with fully recovered waste paper. Background technique [0002] White vermicelli box board is widely used in the packaging of food, beverages, clothing and other commodities. It is beautifully printed and generous, and is loved by consumers. The surface layer of the existing white liner board is generally made of bleached wood pulp and some office waste paper deinked as raw materials; the lining layer is made of office waste paper and ONP deinked pulp; the bottom layer is made of natural waste paper after screening, Manufactured after purification and thermal dispersion treatment. [0003] However, the surface layer uses bleached wood pulp, office waste paper, and deinked paper as raw materials for papermaking, which not only consumes more wood, but also requires a bleaching process, which is not green and environmentally fri...

AI Technical Summary

Problems solved by technology

[0003] However, the surface layer uses bleached wood pulp, office waste paper, and deinked paper as raw materials, which not only consumes more wood, but also requires a bleaching process, which is not green and environmentally friendly; the lining layer uses office waste paper and ONP waste paper Deinking pulp not only needs to invest in deinking equipment, but also requires a large investment, high water consumption and high electricity consumption, and the ink that has been taken off enters the wastewater treatment plant, which is difficult to treat and seriously affects the economic benefits of the enterprise