Preparation method of cotton stalk printing paper pulp

Abstract

A preparation method of cotton stalk printing paper pulp particularly includes the following steps that firstly, cleaned dry cotton stalks are exploded through a steam explosion method, and then granules with the average grain diameter being below 120 micrometers are obtained; secondly, the granules are placed in water, toluene diisocyanate, insectwax, glyceride maleic anhydride resin and 1-2 parts by weight of polyurethane resin are added, temperature rises to the range from 60 DEG C to 80 DEG C, and the mixture is stirred for 1-2 hours; thirdly, water at the temperature ranging from 35 DEG C to 50 DEG C is added to the mixture obtained through the second step, and meanwhile 2-4 parts by weight of alums are added, the mixture is filtered after being stirred for 15-30 minutes, filter liquor is drained, and filter materials are reserved; fourthly, the filter materials are placed in a reaction kettle, titanium dioxide with the average grain diameter being below 10 micrometers, 1-3 parts by weight of starch, phenolic resin and octyl alcohol are added, and the mixture is stirred. Paper products prepared through the paper pulp is bright in color, tough and durable, good in printing performance, long in service life, and suitable for large-scale industrial production.

Description

Technical field

[0001] The invention relates to the technical field of printing and papermaking, in particular to a green and environment-friendly pulp preparation method. Background technique

[0002] After entering the 21st century, with the continuous progress of science and technology, people's living standards are getting higher and higher, and the supply of various materials is extremely abundant. Among them, paper products are also everywhere. All kinds of newspapers, magazines, books, notebooks, note paper, document bags, printing paper, and even cartons, packaging boxes, etc. are used in a huge amount. Most of these paper products are made of plant fibers, of which wood fiber is mostly used. However, excessive timber logging will bring about a series of serious environmental problems, which will in turn affect people's quality of life. Although the society has been advocating saving paper, compared with the large amount of waste, saving is only a drop in the bucket. Th...