Presoak for papermaking and preparation method thereof, and paper industrial packaging production process

Abstract

The invention belongs to the technical field of papermaking, and particularly relates to a presoak for papermaking, a preparation method of the presoak, and a paper industrial packaging production process. The presoak comprises the following raw materials in parts by weight: 6 to 8 parts of a chelating agent, 4 to 6 parts of a penetrating agent, 35 to 45 parts of a softening agent and 20 to 30 parts of a prebleaching agent. The prebleaching agent replaces chemicals such as NaOH, Na2S, Cl2 and ClO2 which are needed in conventional pulping, meanwhile a boiler is not needed, chemical stewing is avoided, and the pulping is carried out under the ordinary temperature condition, so that the purpose of low-carbon, clean and environment-friendly pulping is realized. According to the paper industrial packaging product production process, the process of pulping and producing the paper industrial packaging product is combined as one, so that the production process is simplified, unnecessary investment is reduced, and the condition of directly producing the terminal industrial packaging product from raw materials such as straw is realized.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a papermaking prepreg, a preparation method thereof, and a paper industrial packaging production process. Background technique [0002] With the development of modern society, people's requirements for product quality are increasing day by day. At the same time, the packaging of products is also more exquisite, and packaging materials are required to meet the requirements of environmental protection. At present, the existing product packaging materials are mainly plastic products, and plastic is a by-product of petroleum. With the rapid reduction of petroleum resources, plastic resources are also increasingly exhausted. At the same time, if plastic packaging materials cannot be recycled in time, it will cause great pollution to the environment, and even hundreds of years cannot be naturally degraded. If it is incinerated, it will seriously pollute the atmosphere....

AI Technical Summary

Problems solved by technology

[0004] 1. The raw material (pulp board) of paper-based industrial packaging needs to be purchased from a pulp mill, and its cost is high, with an average of about 5,000 yuan / ton, accounting for half of the cost of paper-based industrial packaging products, and price changes are not easy to control

[0005] 2. The use of pulp boards to make paper industrial packaging products requires a beater to make pulp twice before they can be used, which increases equipment investment, consumes energy, and increases operators.

[0006] 3. The current paper-based industrial packaging equipment requires a large investment. A production line with an annual output of 30 million products requires an investment of more than 3.4 million yuan, and is equipped with 15 main machines and 21 auxiliary machines.

[0007] 4. High energy consumption. A production line needs to be equipped with an electric power of more than 220KW. It also needs to be equipped with coal-fired or oil-fired boilers to heat and dry the products. It needs to consume 80 kilograms of coal per hour, and the annual coal consumption is 576,000 tons. causing pollution and producing a large amount of coal slag

[0008] 5. There are many operators, and a production line needs to be equipped with more than 60 operators

[0009] 6. The production cost is high. Taking a 600ml paper lunch box as an example, the production cost of a single lunch box is 0.2 yuan

[0010] 7. The factory area is large, and a production line requires a factory building of about 1,000 square meters

[0011] 8. Low production efficiency, a single machine can only work 2 times per minute, 4 products can be produced each time, and a single machine can only produce 8 products per minute

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