The Process And Advantages Of Waterproof Kraft Paper

Waterproof kraft paper is an environmentally friendly paper product with excellent waterproof performance, which is widely used in packaging, construction, agriculture and other fields. The production process of waterproof kraft paper may seem simple, but its internal structure and surface treatment have a significant impact on the waterproof effect. Below, we will provide a detailed introduction to the production process and function of waterproof kraft paper.

1, The production process of waterproof kraft paper

1. Raw material selection: Waterproof kraft paper mainly uses natural fiber materials, such as bamboo pulp, wood pulp, straw pulp, etc. To ensure the strength and stability of the paper, it is necessary to add some chemical additives and fillers.

Crystal pulp production: The pulp produced through crystal pulp production technology has the characteristics of consistent fiber length, high paper strength, and good water resistance, which can meet the production needs of waterproof kraft paper.

3. Polishing: The mixture made of pulp is fed into a multi roll paste box, and after continuous polishing, it becomes a flat paper.

4. Processing: After the paper is flattened, a series of processing treatments are required to enhance its waterproof performance. The most important step is surface coating treatment.

Coating treatment: Waterproof treatment is generally divided into two methods: resin coating and wax coating. Here we will introduce the process flow of resin coating method.

a. Resin coating: Dissolve waterproof plastic resin and various additives in a solvent to form an inductive liquid. By using methods such as roller coating and brush coating, the sensitive liquid is evenly coated on the surface of the paper, forming a uniform waterproof layer with strength and waterproof performance.

b. Drying: After coating, the waterproof kraft paper needs to undergo drying treatment to make the resin coating on its surface dry and harden as much as possible.

c. Pressure polishing: The waterproof kraft paper that has been coated with resin and dried is pressed into a pressure polishing machine to make its surface uniform.

d. Rolling: Roll the waterproof kraft paper that has undergone the above treatment into a certain length of roll for easy handling and storage.

2, The function of waterproof kraft paper

Waterproof kraft paper has advantages such as waterproofing, moisture resistance, mold resistance, penetration resistance, tear resistance, excellent mechanical strength, and high temperature and pressure resistance. It is widely used in daily life and industrial production. Below are a few specific application scenarios:

1. Packaging field: Waterproof kraft paper is widely used in the packaging field. It can prevent moisture, mold, flame, pollution, and external substances from entering the packaging container. At the same time, it can effectively protect items from collision damage.

2.Construction field: Waterproof kraft paper is mainly used for waterproofing treatment in the construction field. The treated paper of waterproof kraft paper has superior waterproofing performance and can be used for various building waterproofing treatments, such as roofs and basements.

3. Agricultural field: Waterproof kraft paper is mainly used in the agricultural field to make products such as seedling boxes and moisturizing bags, playing a role in avoiding plant freezing, maintaining suitable temperature and humidity of plants, and so on.

The above is an introduction to the production process and function of waterproof kraft paper. Waterproof kraft paper not only demonstrates broad application prospects, but also has been endowed with deeper social responsibility and mission due to its environmental protection, durability, and protection characteristics. In the future, people believe that waterproof kraft paper will have even broader development space and application prospects.