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Heshan Baihua Paper Products Co., Ltd.

Address: Pinghan Village Committee Industrial Development Zone, Gonghe Town, Heshan City

Mobile:18138060289(Mr. Li)

              13266450566(Mr. Lin)

Phone:0750- 8307312

Fax:0750- 8307312

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Email:1315998615@qq.com


How to improve the drying efficiency of the paper tray?

2020-07-25 09:03:22
Times


纸托生产


With the maturity of the production process, paper trays can now be produced in large quantities and widely, but in the production process of paper trays, drying is a very important process, and it occupies a large production cost. How can the production process improve the drying efficiency of paper trays? ?


The raw material of the paper tray is only about 1% of the pulp of paper fiber. After the wet paper is formed, the moisture content of the wet paper must be reduced to 55% by the mechanical pressing method, and the moisture content of the paper tray is as high as 65%-75% after forming. It is difficult to use mechanical methods to reduce the moisture content. In the production process of paper trays, about 3.5-4.5KG of water should be removed from each kilogram of finished paper trays through the drying process, whether in terms of reducing production costs or improving the quality of paper trays. , It is of great significance to improve the drying efficiency!


The wet paper mold with paper fiber as the main component is a porous object with capillary structure inside, and moisture exists between the surface of the fiber and the pores of the fiber capillary. The paper support products used for the inner packaging of products generally require good dynamic cushioning properties, and the moisture in them cannot be completely removed by mechanical pressing, but needs to be removed by drying. Therefore, compared with the conventional paper drying process, the drying strength of the pulp molded product is very large.


On the one hand, hot air acts as a heat source to provide energy for removing moisture, and on the other hand, it acts as a moisture carrier to take away the moisture that is constantly evaporated. The moisture in the wet paper tray depends on the internal and external diffusion of water. The so-called internal diffusion refers to the migration process of water from the inside to the outside surface in the wet paper tray, and the external diffusion refers to the evaporation of water from its surface. The process of taking away. The dryness rate of the paper support depends on the speed of the internal and external diffusion of the moisture and the balance and coordination between the two. Reasonable process conditions should be established around the above two aspects and the dry physical properties of the paper support product!


 


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Address: Pinghan Village Committee Industrial Development 

               Zone, Gonghe Town, Heshan City

Phone:0750- 8307312

Mobile:18138060289(Mr. Li)    13266450566(Mr. Lin)

Email:1315998615@qq.com

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