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Preparation method for high-intensity corrugated paper

A corrugated paper, high-strength technology, applied in the field of papermaking, can solve the problems of low burst index and ring pressure index, and achieve the effect of enhanced burst index and ring pressure index, high strength, and wide source of raw materials

Inactive Publication Date: 2015-04-01
柳州市柳江区联华纸制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing high-strength corrugated paper, which can solve the problems of low burst index and ring pressure index

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of the high-strength corrugated paper in this example is as follows: Weigh 1 kg of wood pulp and 2 kg of waste paper pulp respectively, mix them evenly, remove impurities, add 3.5 kg of water with a temperature of 40°C to soak the pulp for 15 minutes, and then transfer it to a disperser. The pulp is broken up to obtain the original pulp; 1.635 kg of polyacrylamide solution with a concentration of 3 mol / liter is added to the original pulp, and the paper is made into paper; the paper is preheated, and the adhesive is evenly applied on the surface of the paper by a sizing machine. Pass through a single-facer to obtain corrugated paper; transfer to an oven for drying; the wood pulp in this embodiment is prepared from wood scraps.

Embodiment 2

[0021] The preparation method of the high-strength corrugated paper in this example is as follows: Weigh 10 kg of wood pulp and 15 kg of waste paper pulp, mix them evenly, remove impurities, add 30 kg of water at a temperature of 50°C to soak the pulp for 10 minutes, and then transfer it to a disperser to The pulp is broken up to obtain the original pulp; 7.6 kg of polyacrylamide solution with a concentration of 5 mol / liter is added to the original pulp, and paper is made into paper; the paper is preheated, and the adhesive is evenly applied on the surface of the paper by a sizing machine. Pass through a single-facer to obtain corrugated paper; transfer to an oven for drying; the wood pulp in this embodiment is prepared from wood scraps.

Embodiment 3

[0023] The preparation method of the high-strength corrugated paper in this example is: weigh 20 kilograms of wood pulp and 60 kilograms of waste paper pulp respectively, mix them evenly, remove impurities, add 90 kilograms of water at a temperature of 45°C to soak the pulp for 13 minutes, and then transfer it to a disperser Disperse the pulp to obtain the original pulp; add 16 kg of polyacrylamide solution with a concentration of 4 mol / liter to the original pulp, and make paper; preheat the paper, and apply the adhesive evenly on the paper with a sizing machine On the surface, corrugated paper is obtained through a single-sided machine; it is transferred to an oven for drying; the wood pulp in this embodiment is prepared from wood scraps.

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Abstract

The invention discloses a preparation method for high-intensity corrugated paper, and relates to the technical field of papermaking. The preparation method comprises the steps: respectively weighing wood pulp and waste paper pulp, uniformly mixing the pulps, removing impurities, adding water to soak the pulps, transferring the pulp into a disperser for dispersion to obtain primary pulp, adding a polyacrylamide solution, performing papermaking to prepare paper, preheating the paper, applying glue, putting the paper into single jersey machine to obtain corrugated paper, and transferring the corrugated paper into a drying oven for drying. The high-intensity corrugated paper disclosed by the invention is mainly prepared by the wood pulp prepared by wood leftovers and the waste paper pulp, so that raw materials are readily available, wastes are turned into treasures, and the production cost is lower; in a papermaking process, polyacrylamide is added, so that the bursting index and the ring crush index of the corrugated paper are greatly increased; therefore, the corrugated paper is higher in intensity, and the service life of a corrugated carton is prolonged.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for preparing high-strength corrugated paper. Background technique [0002] Corrugated paper is a common packaging paper. Because of its reasonable structure, simple processing, light weight, low cost, and easy storage and transportation, it has become the most extensive paper container packaging and is widely used in the field of transportation packaging. Corrugated paper is a plate made of liner paper and corrugated corrugated paper formed by processing corrugated sticks. It is generally divided into two types: single corrugated board and double corrugated board. [0003] With the wide application of corrugated boxes, the packaging industry has higher and higher requirements for the quality of corrugated paper: corrugated paper is required to have a strong burst index and ring pressure index, while the existing corrugated paper has a relatively high burst index and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/12
CPCD21H11/14D21H17/55
Inventor 林廷柱
Owner 柳州市柳江区联华纸制品厂
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