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Preparation method of case board paper

A technology of containerboard and paper, which is applied in the field of papermaking, can solve the problems of high production cost of containerboard, achieve the effects of enhancing the burst index and ring pressure index, solving processing problems, and reducing production costs

Inactive Publication Date: 2015-03-25
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 container board, which can solve the problem of high production cost of container board

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of the boxboard paper in this example is as follows: take 1 kilogram of wood scraps and 3.5 kilograms of crop straw, respectively, use a pulverizer to pulverize them, and transfer them to a grinding and splitting machine to grind them into coarse fibers; add 2 kilograms of water and transfer them to the grinding mill. Pulp the pulp, mix evenly, remove impurities, add 7 kg of water to soak the pulp, and then turn it into a disperser to break up the pulp to obtain the original pulp; add 2.4 kg of 2 mol / liter polyacrylamide solution, and make paper to make paper ;Preheat the paper, apply the adhesive evenly on the surface of the paper with a sizing machine, and pass it through a single-sided machine to obtain a cardboard paper; transfer it to an oven for drying.

[0021] The crop stalks in this embodiment are the stem and leaf parts of cassava after harvesting.

Embodiment 2

[0023] The preparation method of the boxboard paper in this example is as follows: take 10 kilograms of wood scraps and 20 kilograms of crop stalks respectively, use a pulverizer to pulverize them respectively, and transfer them to a grinding and splitting machine to grind them into coarse fibers; add 18 kilograms of water and transfer them to the mill Pulp the pulp, mix evenly, remove impurities, add 40 kg of water to soak the pulp, and then turn it into a disperser to break up the pulp to obtain the original pulp; add 11.4 kg of 3 mol / liter polyacrylamide solution, and make paper to make paper ;Preheat the paper, apply the adhesive evenly on the surface of the paper with a sizing machine, and pass it through a single-sided machine to obtain a cardboard paper; transfer it to an oven for drying.

[0024] The crop stalks in this embodiment are the stems and leaves after the rice is harvested.

Embodiment 3

[0026] The preparation method of the boxboard paper in this example is as follows: take 20 kilograms of wood scraps and 100 kilograms of crop stalks respectively, use a pulverizer to pulverize them respectively, and transfer them to a grinding and splitting machine to grind them into coarse fibers; add 80 kilograms of water and transfer them to the mill Pulp the pulp, mix evenly, remove impurities, add 180 kg of water to soak the pulp, and then turn it into a disperser to break up the pulp to obtain the original pulp; add 35 kg of 4.5 mol / liter polyacrylamide solution, and make paper to make paper ;Preheat the paper, apply the adhesive evenly on the surface of the paper with a sizing machine, and pass it through a single-sided machine to obtain a cardboard paper; transfer it to an oven for drying.

[0027] The crop stalks in this embodiment are the stems and leaves of sugarcane after harvesting.

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Abstract

The invention discloses a preparation method of case board paper. The preparation method of the case board paper comprises the following steps: respectively crushing wood scraps and crop straws, grinding the wood scraps and the crop straws into crude fiber, adding water into the crude fiber and pulping, uniformly mixing, removing impurities, adding water and soaking the pulp, scattering the pulp to obtain raw pulp, adding the raw pulp into a polyacrylamide solution, making paper to obtain the paper, preheating the paper, applying glue to the paper, enabling the paper to pass through a single-side machine to obtain the case board paper, and drying the case board paper. According to the preparation method of the case board paper, the wood scraps and the crop straws are used as base raw materials, so that the waste is turned into wealth, so that not only the production cost is reduced, and also the problem of treatment of the wood scraps and the crop straws can be solved; polyacrylamide is added in the paper making process; the problem of low fiber strength of the crop straws is compensated; the breakage resistance index and the circular pressure index of the case board paper are improved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for preparing cardboard paper. Background technique [0002] Container board, also known as kraft paper and kraft cardboard, is one of the main paper types for carton paper. Cardboard paper is mainly bonded with corrugated paper cores to make corrugated cartons, which are used to package household appliances, daily necessities, knitted cotton fabrics, stationery, and the outer packaging of Chinese and Western patent medicines. [0003] The raw materials for the preparation of containerboard paper generally use two raw materials: virgin wood pulp and waste paper wood pulp. Virgin wood pulp has better burst resistance, but its cost is higher, while waste paper wood pulp has lower cost but complicated treatment process, and Its strength is poor. According to the concept of green and environmental protection, the paper industry gradually reduces the use of virgin wood ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/12D21H17/55
Inventor 林廷柱
Owner 柳州市柳江区联华纸制品厂
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