High-intensity corrugating medium and preparation method thereof

Abstract

The invention discloses a high-intensity corrugating medium and a preparation method thereof. According to the technical scheme, the high-intensity corrugating medium is prepared from, by weight, 700-800 parts of waste paper, 100-150 parts of waste slag pulp, 40-60 parts of starch, 80-100 parts of water and 5-20 parts of additive; the additive is prepared from oxidized starch, a dispersing agent, a non-ionic macromolecular flocculating agent, a surface sizing agent, a sterilizing agent, an antifoaming agent and a flow aid; the surface sizing agent is prepared from 0.01-0.05 part of starch acetate, 0.03-0.05 part of aluminum potassium sulfate dodecahydrate and 0.03-0.05 part of sodium metaaluminate, wherein the effects of mating reaction generated among starch acetate, aluminum potassium sulfate dodecahydrate and sodium metaaluminate can make crosslinking performance among fibers good, the situation of equipment erosion caused by super-acid environment can be effectively avoided, and slightly excess aluminum potassium sulfate dodecahydrate is selected, so that the drying speed of the surface sizing agent is relatively high.

Description

technical field [0001] The invention relates to the field of papermaking, in particular to a high-strength corrugated base paper and a preparation method thereof. Background technique [0002] my country is a big country of production, and the annual transaction of goods is as high as ten thousand yuan, and the goods need to be packaged in the sales process. The most common packaging material is cardboard boxes. Not only cardboard boxes, but also a lot of waste in daily life. Paper, including waste newspapers, periodicals, writing paper, etc. Therefore, there is a large amount of waste paper and waste cardboard to be processed in our country every year, and most of these waste paper and waste paper boxes are reprocessed and used in paper mills to produce new value. However, domestic waste paper contains a lot of magazines and a lot of straw pulp, and has been reused and reproduced by some small processing plants for many times. It is difficult to produce good quality and high...

AI Technical Summary

Problems solved by technology

However, domestic waste paper contains a lot of magazines and a lot of straw pulp, and has been reused and reproduced by some small processing plants for many times. It is difficult to produce good quality and high strength packaging paper or cardboard, especially in my country. The demand for cardboard and cardboard is relatively high, and the corresponding requirements are also relatively high, including the strength, toughness, ring pressure index and burst index of paper, etc. For waste paper recycling enterprises, how to overcome these problems is related to the survival and development of enterprises

[0003] However, the corrugated paper used for packaging is not very good in moisture-proof effect, which limits its application in humid environment. The current solution is to put a moisture-proof protective layer on the outside of the carton, but it increases the packaging cost. , another way is to coat a layer of moisture-proof agent on the outside of the carton. This method needs to solve the problem of the adhesion between the moisture-proof agent and the carton and the problem that the moisture-proof agent is easy to peel off. At present, neither of them has achieved the desired effect.

[0004] There are many types of corrugated cardboard adhesives. Among them, the existing starch adhesives have high bonding strength, good moisture resistance, safety and non-toxicity, and are widely used. However, the starch adhesives may have production during use. The disadvantage of low cardboard strength

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