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Preparation method for improving waterproof performance of paper cup

A performance and paper cup technology, which is applied in the field of preparation to improve the waterproof performance of paper cups, can solve the problems of poor waterproof effect, etc., and achieve the effects of easy recyclability, enhanced cross-linking degree, and good mechanical properties

Inactive Publication Date: 2019-01-22
安庆市双龙纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rice straw can be used to make paper after dehydration, but the paper cups made by the traditional papermaking process often have the problem of poor waterproof effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method for improving the waterproof performance of paper cups, comprising the steps of:

[0023] S1. Stir 3kg of locust bean gum, 4kg of sweet potato starch, and 34kg of water for 10 minutes at a stirring temperature of 54°C, pregelatinize for 4 minutes, and pregelatinize at a temperature of 90°C, add 12kg of polyethylene glycol 4000 and mix evenly, add 0.1kg of polyethylene glycol Etheramine D230 and 0.04 kg of tris-(dimethylaminomethyl)phenol were mixed evenly, degassed in vacuum, adjusted the temperature to 120°C and stirred for 80 minutes, cooled, dried, and pulverized to obtain the first material;

[0024] S2. Mix 34kg of rice straw and 18kg of pagoda tree bark, grind them into pulp until the degree of beating is 51°SR, adjust the concentration to 1.2wt%, then add 2kg of the first material and stir for 40min at a stirring speed of 1200r / min to obtain the first Two materials;

[0025] S3, add 1kg methyl silicone oil, 1kg paraffin, 1kg cocamidopropyl b...

Embodiment 2

[0027] A preparation method for improving the waterproof performance of paper cups, comprising the steps of:

[0028] S1. Stir 9kg of locust bean gum, 1kg of sweet potato starch, and 45kg of water for 4 minutes at a temperature of 60°C, pregelatinize for 2 minutes, and pregelatinize at a temperature of 96°C, add 4kg of polyethylene glycol 4000 and mix evenly, add 0.2kg of polyethylene glycol Etheramine D230 and 0.01kg of tris-(dimethylaminomethyl)phenol were mixed evenly, degassed in vacuum, adjusted the temperature to 140°C and stirred for 40 minutes, cooled, dried, and pulverized to obtain the first material;

[0029] S2. Mix 45kg of rice straw and 10kg of locust tree bark, grind them into pulp until the degree of beating is 54°SR, adjust the concentration to 0.8wt%, then add 4kg of the first material and stir for 24min at a stirring speed of 1400r / min to obtain the first Two materials;

[0030] S3, add 3kg methyl silicone oil, 0.2kg paraffin, 2kg cocamidopropyl betaine to ...

Embodiment 3

[0032] A preparation method for improving the waterproof performance of paper cups, comprising the steps of:

[0033] S1. Stir 4kg of locust bean gum, 3kg of sweet potato starch, and 38kg of water for 8 minutes at a stirring temperature of 56°C, pregelatinize for 3.5min at a temperature of 92°C, add 10kg of polyethylene glycol 4000 and mix well, add 0.12kg Mix polyetheramine D230 and 0.03 kg of tris-(dimethylaminomethyl)phenol evenly, degas in vacuum, adjust the temperature to 125°C and stir for 70 minutes, cool, dry, and pulverize to obtain the first material;

[0034] S2. Mix 38kg rice straw and 16kg locust tree bark, grind them into pulp until the degree of beating is 52°SR, adjust the concentration to 1.1wt%, then add 2.5kg of the first material and stir for 34min, and the stirring speed is 1250r / min, to obtain the second material;

[0035] S3, add 1.5kg methyl silicone oil, 0.8kg paraffin, 1.3kg cocamidopropyl betaine to the 75kg second material and mix evenly, then add ...

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PUM

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Abstract

The invention discloses a preparation method for improving the waterproof performance of a paper cup. The preparation method includes the following steps of mixing locust bean gum and sweet potato starch with water for pregelatinization, adding polyethylene glycol 4000 for uniform mixing, adding polyether amine D230 and tri-(dimethylamino methyl)phenol for uniform mixing, conducting vacuum degassing, adjusting the temperature for stirring, and conducting cooling, drying and smashing to obtain a first material; mixing straw stalks with locust tree bark, conducting disc grinding to obtain pulp,adjusting the concentration of the pulp, adding the first material, and stirring the mixture to obtain a second material; adding methyl silicone oil, paraffin and cocamidopropyl betaine into the second material for uniform mixing, then adding montmorillonite, trimethylethoxysilane, organic-silicone polymerized emulsion, bentonite and silicon carbide powder for uniform mixing, pumping the mixture into a die for paper pulp molding, making the mixture subjected to adsorption forming and then dried into raw paper, and conducting rolling, hot press, cropping and bonding forming to obtain the waterproof paper cup.

Description

technical field [0001] The invention relates to the technical field of paper cups, in particular to a preparation method for improving the waterproof performance of paper cups. Background technique [0002] In recent years, with the development of science and technology and the enrichment and continuous improvement of people's living standards, more and more attention has been paid to health, especially the requirements for food safety and packaging safety are also getting higher and higher. The paper industry is an important basic raw material industry closely related to the development of the national economy and social undertakings. The consumption level of paper and cardboard is a symbol to measure the level of modernization and civilization of a country. [0003] Rice is a food crop widely grown in southern China. Rice stalks are often burned and used as fertilizer, seriously polluting the environment. Rice straw can be used to make paper after dehydration, but the pap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/12B31B70/00B31B70/20B31B70/62D21H17/24D21H17/28D21H17/68D21H17/69D21H17/53
CPCB31B70/00B31B70/20B31B70/62D21H17/24D21H17/28D21H17/53D21H17/68D21H17/69D21J3/12
Inventor 王生龙
Owner 安庆市双龙纸业有限公司
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