Method for producing paperboards and paper tubes

Abstract

The invention relates to a method for producing paperboards and paper tubes, comprising the following steps of: (1) carrying out steam blasting and fluid energy milling on plant waste materials to obtain a raw material A; (2) carrying out the steam blasting on waste and old textiles and animal fibers to obtain a raw material B; (3) preparing a sodium silicate solution with the mass concentration of 12-15% to obtain a raw material C; (4) uniformly mixing the raw material A with the mass percent of 84-86%, the raw material B with the mass percent of 6-9%, the raw material C with the mass percent of 6-8% and thermosetting resin with the mass percent of 0-4%, putting the mixture into a paper pressing machine to prepare the paperboards and the paper tubes; and (5) carrying out air drying and curing on the obtained paperboards and paper tubes or curing by adopting a drying machine or a blast blower. The invention has the advantages that: process is simple, raw materials are available; manpower and energy are saved, production efficiency is improved, production cost is reduced; and the obtained paperboards and the paper tubes have good and stable quality, thus the method is applicable topopularization and application and is environment-friendly for papermaking.

Description

technical field [0001] The invention relates to the technical field of pulping and papermaking, in particular to the field of producing cardboard and paper tubes by steam explosion technology. Background technique [0002] Cardboard and paper tubes are indispensable packaging materials in modern society. Cardboard can be used to make various packaging boxes, waterproof boards, sound insulation boards, cover panels, etc., while various plastic films, cloth, and metal wires are used in packaging, transportation, and sales. During the process, paper tubes are used as the inner core material. [0003] For the production of cardboard, the patent literature with the application number CN200580015800.X provides a method for adding hydrotalcite to an aqueous suspension containing cellulose to deposit one or more layers of paperboard; the patent literature with the application number CN00809011.4 Provided is a method of bonding single-layer paper by multi-layer polymers to form card...

AI Technical Summary

Problems solved by technology

[0005] It can be seen from the above technical information that the commonly used method of producing cardboard and paper tubes is to glue multiple layers of paper. In order to make the cardboard and paper tubes have a certain compressive and bending strength, most of them need to increase the number of layers of pasted paper. , this method has two defects: one is that the wet papermaking of paper used in the production of cardboard and paper tubes will discharge a large amount of waste water, causing environmental pollution; the other is that it needs to consume a lot of cellulose resources. Waste paper, but the recycling rate of domestic waste paper is low, and we still need to rely on imported waste paper

Whether the above methods are pre-processing or post-processing, chemical waste and wastewater will be produced, and the slurry produced by simple steam explosion treatment is not uniform, which will affect the quality of papermaking.

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