Manufacturing method of environment protective paper

Abstract

The invention relates to a method for manufacturing environment-friendly paper, comprising the following steps that: two raw materials, which are 60 to 80 percent in weight of mineral composition powder and 19 to 37 percent of seaweed glue, are mixed first and with 1 to 3 percent of auxiliary material to form a mixture which is subjected to extruding, compounding and pelleting and thus a raw material of finished product is produced; the raw material of finished product is heated and softened inside a paper film making machine and is bleached by the auxiliary material as well as is extended to form a paper film by atmospheric pressure; the white paper is made by bi-directional extension molding and cooling as well as drying. The method takes the mineral composition powder and the seaweed glue as the main raw materials, thereby not only saving wood resources and other raw materials for making paper, lowering the cost for making paper and avoiding the pollution of chemical substances such as acid and alkali on the environment. In addition, the paper made by the method has the characteristics of good intensity, good flexibility, and high whiteness, thereby not only improving the paper quality but also lowering the production cost of the paper and having important benefits.

Description

technical field [0001] The invention relates to a method for making paper, in particular to a method for making environmentally friendly paper. Background technique [0002] my country is a big country in papermaking, and the resources of wood plant fibers and non-wood plant fibers used in pulp and papermaking are very rich, and the development prospects are broad. However, for a long time, most small and medium-sized enterprises have been using traditional pulping techniques such as the alkali method, the sulfate method, the ammonium method and the semi-chemical method. These traditional pulping methods that undergo high-temperature cooking or chemical immersion produce a large amount of black liquor and harmful gases during the pulping process, which not only pollutes the environment, but also brings great harm to people's lives and health. The waste water discharged by the paper industry has also become one of the main reasons for the serious pollution of land, rivers an...

AI Technical Summary

Problems solved by technology

Although this method has a simple process and does not cause large-scale pollution of the product, commercial pulp boards are used as processing raw materials, so the cost is relatively high; the product surface is not uniform; the production variety is limited, and it is impossible to completely solve the problems in the production of commercial pulp boards. pollution problems caused by