The Difference Between Coated Kraft Paper And Aluminum Foil Kraft Paper

Currently, Kraft paper is a common material in the field of industrial paper. In daily life, Kraft paper also has a wide range of applications: different types of Kraft paper are widely used in packaging, printing, making handbags, paper boxes, newspapers, calendars, greeting cards, signage, embossed paper, etc. Different application environments have different requirements for Kraft paper, among which coated Kraft paper and aluminum foil Kraft paper are currently the two materials that people pay more attention to. What is the difference between these two materials? Today, Yisheng jiaye packing editor will introduce the craftsmanship and differences of these two materials to you.

1, The production process of coated kraft paper

Coated kraft paper is a material formed on the resin coating basis of ordinary kraft paper. Therefore, the production process of coated kraft paper must start with raw materials and choose high-quality resin as the material. In the coating process, soak the kraft paper in a certain resin coating solution for a certain period of time until the surface of the kraft paper is evenly wetted.

Furthermore, during the resin impregnation process, it is necessary to control key parameters such as temperature, time, and coating thickness to ensure that it does not affect the quality and performance of the kraft paper itself, while also having better toughness and deformation performance, which can better accommodate the packaged items.

2, The production process of aluminum foil kraft paper

Aluminum foil kraft paper is a material that uses aluminum foil film as a barrier layer to cover the surface of kraft paper. The manufacturing process of aluminum film is crucial in the production process. Firstly, the adjustment of lateral tension, longitudinal tension, temperature, and humidity is necessary to control the tension of the aluminum film, thereby ensuring a more uniform thickness and weight of the aluminum film. Next is the ion treatment of the aluminum film, which improves its adhesion to the paper by treating the surface charge of the aluminum film. Finally, the transfer process of the aluminum film is optimized to make it easy to separate the aluminum film from the PE film and adhere to the kraft paper.

3, The difference between coated kraft paper and aluminum foil kraft paper

1. Functional differences: Aluminum foil kraft paper has certain insulation and moisture-proof functions, which can ensure that the packaged items are not affected by external factors such as humidity, oxygen, and ultraviolet radiation; However, coated kraft paper does not have this function.

2. Price difference: Aluminum foil kraft paper is relatively expensive compared to coated kraft paper, but the functions provided are also confirmed by consumers upon purchase.

3. Differences in production process: The production process of aluminum foil kraft paper is complex and requires coordination and optimization among multiple processes to ensure perfect adhesion between the aluminum film sheet and the kraft paper. The production process of coated kraft paper is relatively simple, while the process of impregnating resin is relatively simple.

4. Differences in green environmental protection: Coated kraft paper has more obvious environmental advantages than aluminum foil kraft paper. The hydrogen gas formed during the resin production process will only be left in the production area and will not affect the atmosphere and water sources. On the other hand, aluminum foil kraft paper has the property of difficult degradation of aluminum foil and requires secondary processing, which is a waste of resources.

In short, coated kraft paper and aluminum coated kraft paper have their own characteristics, and different materials can be selected according to different packaging needs. At the same time, protecting the ecological environment, improving resource utilization, choosing green and environmentally friendly coated kraft paper or more recyclable ones