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Production method of mildew-proof and high-strength corrugated base paper

A technology for corrugated base paper and production method, which is applied in textiles and papermaking, addition of anti-biological reagents, and paper, etc., can solve the problems that corrugated base paper does not have flame retardancy, does not have antibacterial and anti-mildew effects, and corrugated base paper is easy to soften. , to achieve the effect of improving the anti-mildew effect, enhancing the interweaving force and reducing the production cost

Inactive Publication Date: 2020-10-27
NINE DRAGONS PAPER IND TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing corrugated base paper does not have antibacterial and mildew-proof effects, so that the corrugated base paper is easy to soften in a humid environment, such as the rainy season in the south, which makes the ring compressive strength drop seriously, which not only affects the packaging effect, but also piles up It is easy to cause quality accidents, and the existing corrugated base paper does not have flame retardancy, and there are potential safety hazards in the process of stacking and transporting a large number of

Method used

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  • Production method of mildew-proof and high-strength corrugated base paper
  • Production method of mildew-proof and high-strength corrugated base paper
  • Production method of mildew-proof and high-strength corrugated base paper

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Experimental program
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Effect test

Embodiment 1

[0038] A method for producing mildew-proof and high-strength corrugated base paper of this embodiment comprises the following steps:

[0039] S1: Domestic Waste Paper Treatment

[0040] Put the domestic waste paper into the hydraulic pulper and fully disintegrate it, then send it to the high-concentration slag remover to remove the slag, and then pass through the coarse sieve and the grading sieve to screen out the short-fiber pulp A and long-fiber pulp A, and the sieve of the grading sieve The width is 0.06mm, and the pressure difference of the grading screen is 20kpa;

[0041] S2: Structural bark treatment

[0042] After the bark is crushed, cleaned and soaked, pre-impregnated, hammered, secondary impregnated, cleaned and refined, coarse sieves and grading sieves are carried out to screen short-fiber pulp B and long-fiber pulp B, Among them, the chemical solution used for pre-impregnation and secondary impregnation is composed of hydrogen peroxide and sodium hydroxide, the...

Embodiment 2

[0050] A method for producing mildew-proof and high-strength corrugated base paper, comprising the following steps:

[0051] In step S2, the temperature during pre-impregnation and secondary impregnation is both 30°C, and the time for pre-impregnation and secondary impregnation is both 8h;

[0052] In step S3, short-fiber pulp A and short-fiber pulp B are uniformly mixed in a ratio of 8:1 in parts by mass to obtain short-fiber pulp C, and long-fiber pulp A and long-fiber pulp B are mixed in a ratio of 8:1 in parts by mass. : The ratio of 1 is uniformly mixed to obtain long-fiber pulp C;

[0053] In step S3, the reinforcing agent is a binary reinforcing agent composed of polyacrylamide and dialdehyde starch, and the mass-to-number ratio of polyacrylamide, dialdehyde starch and short fiber pulp is 0.007:0.005:1, polyacrylamide, bisaldehyde The mass fraction ratio of aldehyde starch and long fiber pulp is 0.007:0.005:1, and antifungal agent is made up of fumaric acid and Kathon,...

Embodiment 3

[0058] A method for producing mildew-proof and high-strength corrugated base paper, comprising the following steps:

[0059] In step S2, the temperature during pre-impregnation and secondary impregnation is both 23 ° C, and the time of pre-impregnation and secondary impregnation is 4 hours;

[0060] In step S3, short-fiber pulp A and short-fiber pulp B are uniformly mixed in a ratio of 10:1 in parts by mass to obtain short-fiber pulp C, and long-fiber pulp A and long-fiber pulp B are mixed in a ratio of 10 in parts by mass. : The ratio of 1 is uniformly mixed to obtain long-fiber pulp C;

[0061] In step S3, the reinforcing agent is a binary reinforcing agent composed of polyacrylamide and dialdehyde starch, and the mass-number ratio of polyacrylamide, dialdehyde starch and short fiber pulp is 0.004:0.002:1, polyacrylamide, bisaldehyde The mass fraction ratio of aldehyde starch and long fiber pulp is 0.004:0.002:1, and antifungal agent is made up of fumaric acid and Kathon, a...

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Abstract

The invention provides a production method of mildew-proof and high-strength corrugated base paper. The production method comprises the following steps of: S1, domestic waste paper treatment; S2, broussonetia papyrifera bark treatment; S3, pulping; S4, pulping; and S5, papermaking. According to the corrugated base paper produced by the invention, broussonetia papyrifera bark and domestic waste paper are used as production raw materials, and the production cost is reduced; broussonetia papyrifera bark is added into the production raw materials, so that the use amount of mildew preventive can bereduced; during preparation of short fiber pulp and long fiber pulp, by adding the mildew preventive composed of fumaric acid and Kathon, the mildew prevention effect of the corrugated base paper canbe further improved; broussonetia papyrifera bark is used as a production raw material, the strength of the produced corrugated base paper can be enhanced; and when short fiber pulp and long fiber pulp are prepared, the added reinforcing agent can enhance the interlacing force between fibers, so that the strength of the produced corrugated base paper is further enhanced.

Description

technical field [0001] The invention relates to a method for producing mildew-resistant and high-strength corrugated base paper, which belongs to the technical field of corrugated paper preparation. Background technique [0002] Corrugated base paper, also known as corrugated medium paper, is the raw paper used to form the corrugated core of corrugated cardboard, and can also be used alone as packaging paper for fragile items. The raw materials of corrugated base paper are mainly plant cellulose and hemicellulose, which have strong water absorption and will swell and deform when exposed to water. The existing corrugated base paper does not have antibacterial and mildew-proof effects, so that the corrugated base paper is easy to soften in a humid environment, such as the rainy season in the south, which makes the ring compressive strength drop seriously, which not only affects the packaging effect, but also piles up When it is used, it is easy to cause quality accidents, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/12D21H21/36D21H21/34
CPCD21F11/12D21H21/36D21H21/34
Inventor 周国伟殷宪文
Owner NINE DRAGONS PAPER IND TIANJIN
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