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High-strength waterproof semitransparent food paper bag body paper and preparation method thereof

A translucent, high-strength technology, applied in the field of paper manufacturing, can solve problems such as poor formability and easy deformation, and achieve the effects of reducing production costs, improving tensile force and formability, and reducing pulp loss.

Inactive Publication Date: 2021-06-22
福建星城纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the existing food paper bags are guaranteed to meet the requirements of bursting strength and transparency, their forming degree is poor, and they are easily deformed after processing.

Method used

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  • High-strength waterproof semitransparent food paper bag body paper and preparation method thereof
  • High-strength waterproof semitransparent food paper bag body paper and preparation method thereof
  • High-strength waterproof semitransparent food paper bag body paper and preparation method thereof

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preparation example Construction

[0045] Examples of Preparation of Raw Materials and / or Intermediates

[0046] The raw material source of following embodiment and preparation is as shown in table 1:

[0047]

[0048]

Embodiment 1

[0051] A high-strength waterproof translucent food paper bag base paper is prepared through the following steps:

[0052] S1, coniferous wood pulp beating;

[0053] Weigh 1000Kg of dry pulp of softwood pulp, add water to adjust the beating concentration of softwood pulp to 3%, add 0.1Kg of beating enzyme, and beat at a beating temperature of 38°C to 75°SR;

[0054] S2, bamboo pulp beating;

[0055] Take by weighing the absolute dry slurry of 1000Kg bamboo pulp, add water to adjust the beating concentration of bamboo pulp to 4.5%, and then beat to 55 ° SR;

[0056] S3, bagasse pulp beating;

[0057] Weigh the dry slurry of 1000Kg bagasse pulp, add water to adjust the beating concentration of bagasse pulp to 4.5%, and then beat to 55 ° SR;

[0058] S4, preparation of high-strength waterproof translucent food paper bag base paper;

[0059] S41, add clear water in the gelatinization tank, keep the rotating speed at 60r / min, slowly add the cationic starch substituting agent, so...

Embodiment 2

[0063] A high-strength waterproof translucent food paper bag base paper is prepared through the following steps:

[0064]S1, coniferous wood pulp beating;

[0065] Weigh 1000Kg of dry pulp of coniferous wood pulp, add water to adjust the beating concentration of coniferous wood pulp to 3.3%, add 0.13Kg of beating enzyme, and perform beating at a beating temperature of 38°C to 75°SR;

[0066] S2, bamboo pulp beating;

[0067] Take by weighing the absolute-dry slurry of 1000Kg bamboo pulp, add water to adjust the beating concentration of bamboo pulp to 4.5-5%, then beating, beating to 55°SR;

[0068] S3, bagasse pulp beating;

[0069] Weigh the dry slurry of 1000Kg bagasse pulp, add water to adjust the beating concentration of bagasse pulp to 4.7%, and then beat to 55 ° SR;

[0070] S4, preparation of high-strength waterproof translucent food paper bag base paper;

[0071] S41. Add clear water into the gelatinization tank, keep the rotating speed at 60r / min, slowly add catio...

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Abstract

The invention relates to the technical field of paper leaf manufacturing, and particularly discloses high-strength waterproof semitransparent food paper bag body paper and a preparation method thereof. The preparation method comprises the following preparation steps: S1, weighing absolutely dry pulp of the softwood pulp, adjusting the pulping concentration of the softwood pulp to 3-3.5%, and adding pulping enzyme for pulping; s2, beating bamboo pulp; s3, pulping bagasse pulp; s4, preparing the high-strength waterproof semitransparent food paper bag body paper, wherein s41, uniformly mixing softwood pulp, bamboo pulp and bagasse pulp, and adding a cationic starch substitution agent; s42, adding polyacrylamide resin, stirring for 10-15 minutes, and adding a wet strength agent to obtain a mixture; and S43, after the concentration of the mixture is adjusted to be 2.5-2.8%, subjecting the mixture to screening purification, net forming, squeezing and drying in sequence, and obtaining the high-strength waterproof semitransparent food paper bag body paper . When the bursting strength and the transparency meet the requirements, the molding degree can also meet the requirements.

Description

technical field [0001] The application relates to the technical field of paper manufacturing, more specifically, it relates to a high-strength waterproof translucent food paper bag base paper and a preparation method thereof. Background technique [0002] With the improvement of environmental protection requirements, people's environmental protection concept is getting stronger and stronger. In food consumption, it has become inevitable for green packaging materials to gradually eliminate outdated plastic packaging materials. In the future, circular economy will become the main mode of development of the food packaging industry. Therefore, the improvement of food packaging materials has become a top priority. As a recyclable material, paper materials will improve competitiveness for creating a recyclable food economy, and provide a broader development space for food paper packaging. [0003] Existing food paper bags are made of food paper bag base paper through stamping, pro...

Claims

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Application Information

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IPC IPC(8): D21F11/00D21H11/12D21H17/29D21H21/20
CPCD21F11/00D21H11/12D21H17/29D21H21/20
Inventor 余仕发林淑芳肖尚冬饶福龙
Owner 福建星城纸业有限公司
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