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Paper plate production process

A production process and technology for paper trays, applied in paper, papermaking, paper coatings, etc., can solve problems such as easy generation of organic waste gas and environmental pollution, and achieve the effects of improving the quality of paper trays, reducing pollution, and improving production efficiency

Pending Publication Date: 2020-03-24
宁波弘泰包装新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of preparing pulp, it is necessary to add mixed adhesives and various additives, so that on the one hand, it is easy to generate industrial sewage, and on the other hand, it is easy to generate organic waste gas, so it is easy to pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1. Control the ambient temperature at 60°C, spray the humidifying agent on both sides of the cardboard, and use a scraper to spread the humidifying agent on both sides of the cardboard evenly, so that the saturation of the humidifying agent on the cardboard is 30wt%;

[0035] Step 2, die-cutting the cardboard into a prescribed shape;

[0036] Step 3, placing the cardboard after humidifying and die-cutting in step 2 into the mold;

[0037] Step 4: Control the temperature of the mold at 120°C for 1 to 3 seconds, and dry the cardboard under pressure;

[0038] Step 5. Afterwards, the cardboard is taken out from the mold, and placed at room temperature for cooling to obtain a finished paper tray.

[0039] Wherein, in step 4, the mold is heated by microwaves, the frequency of microwaves is controlled at 500 MHz, and the humidifying agent includes 5% ethanol, 2% methyl silicone oil, 60% acrylic resin, and the rest is distilled water by volume fraction. In addition, the ...

Embodiment 2

[0041] Step 1. Control the ambient temperature at 60°C, spray the humidifying agent on both sides of the cardboard, and use a scraper to spread the humidifying agent on both sides of the cardboard evenly, so that the saturation of the humidifying agent on the cardboard is 33wt%;

[0042] Step 2, die-cutting the cardboard into a prescribed shape;

[0043] Step 3, placing the cardboard after humidifying and die-cutting in step 2 into the mold;

[0044] Step 4. Control the temperature of the mold at 135°C for 1.1s, and pressurize and dry the cardboard;

[0045] Step 5. Afterwards, the cardboard is taken out from the mold, and placed at room temperature for cooling to obtain a finished paper tray.

[0046] Wherein, in step 4, the mold is heated by microwaves, the frequency of microwaves is controlled at 650MHz, and the humidifying agent includes 5% ethanol, 2% methyl silicone oil, 60% acrylic resin, and the rest is distilled water in terms of volume fraction. In addition, the hu...

Embodiment 3

[0052]Step 1. Control the ambient temperature at 60°C, spray the humidifying agent on both sides of the cardboard, and use a scraper to spread the humidifying agent on both sides of the cardboard evenly, so that the saturation of the humidifying agent on the cardboard is 35wt%;

[0053] Step 2, die-cutting the cardboard into a prescribed shape;

[0054] Step 3, placing the cardboard after humidifying and die-cutting in step 2 into the mold;

[0055] Step 4. Control the temperature of the mold at 150°C for 1.2s, and dry the cardboard under pressure;

[0056] Step 5. Afterwards, the cardboard is taken out from the mold, and placed at room temperature for cooling to obtain a finished paper tray.

[0057] Wherein, in step 4, the mold is heated by microwaves, the frequency of microwaves is controlled at 500MHz-800MHz, and the humidifying agent includes 5% ethanol, 2% methyl silicone oil, 60% acrylic resin, and the rest is distilled water by volume fraction. In addition, the humid...

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PUM

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Abstract

The invention discloses a paper pulp plate production process, and relates to the field of disposable paper plates. The paper plate production process mainly comprises the steps that (1) humidifying agents are sprayed to two surfaces of raw papers; (2) paperboards are cut into stated shapes; (3) the humidified and cut paperboards are positioned in a mold for molding; (4) the temperature of the mold is controlled within 120-150 DEG C; the time lasts for 1-1.2 s; and the paperboards are pressed and dried; and (5) the paperboards are taken out from the mold, and are cooled at a room temperature to obtain finished paper plates. Through the technical scheme, as the paper pulp preparation step is saved, the consumption of a lot of water and electric resources caused by pollutants generated in the paper pulp preparation process can be reduced, and meanwhile, the time of curing paper pulp as finished papers can be shortened to improve the production efficiency.

Description

technical field [0001] The invention relates to the field of disposable paper tray production, in particular to a production process of the paper tray. Background technique [0002] With the development of modern science and technology, the pace of life is getting faster and faster. People require a simple and fast life. Disposable products have entered people's lives. Paper plates have the advantages of convenience and hygiene, which bring great convenience to our daily life. At present, a large number of disposable plates are made of plastic, and the situation of white pollution in our country has seriously threatened people's daily life so far. The disposable plates made of plastic materials used in the past can no longer adapt to the current social development, and because of the problem of difficult degradation, they have been slowly abandoned by the market. Therefore, it is particularly important to develop paper trays that can be completely degraded. [0003] Howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B50/59B31B50/74B31B50/20D21H19/10D21H17/06D21H17/59D21H17/37D21H21/14D21H17/00
CPCB31B50/59B31B50/741B31B50/747B31B50/20D21H19/10D21H17/06D21H17/59D21H17/37D21H21/14D21H17/00
Inventor 杨红祥
Owner 宁波弘泰包装新材料科技有限公司
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