For a long time, plastic packaging has been used in a large number of food packaging applications. Because plastics are extremely difficult to degrade naturally, serious environmental pollution is caused. Therefore, some developed countries have partially restricted the use of plastic packaging. For this reason, the development of food packaging paper has become the consensus of the food and packaging industry. According to different angles of food packaging papers, new food packaging papers can be initially divided into the following categories.

Waterproof Dehydration Packaging Paper This type of packaging paper, called PS, is made of a semi-permeable membrane that can only pass through water as a surface material, and a high-permeable pressure material and a polymer water-absorbing agent on the inside. The packaging paper does not damage the cells of the food tissues, but also inhibits the activity of molds, prevents the decomposition of proteins, reduces the proliferation of microorganisms, and maintains the freshness, concentration, and umami components of the food, and improves the toughness.

The biggest feature of the functional paper for water absorbing functional paper is its strong ability of absorbing water. It can maintain the water absorption capacity of 10 times of its own weight, and it is safe and harmless. There is a significant difference between the water absorption capacity and the water retention capacity of the water-absorbing functional paper and the non-woven fabric, and the water-absorbing functional paper is obviously dominant. This is because non-woven fabrics can only retain moisture in the pores between the fibers of the raw material, while the water-absorbing functional paper not only has the above capabilities, but also the fibers themselves can absorb water. When the absorbent paper absorbs water, it becomes very soft. Due to the following characteristics, the water-absorbing functional paper can be used as a film (sheet) for absorbing condensation such as ham and sausage, a film (sheet) for absorbing fresh food drips, and a film for cosmetics and sanitary materials.

The acid-free waterproof archive paper has been independently developed by the Hunan Changde Cigarette Factory, Jin Furong (Special) Paper Co., Ltd., and it has successfully filled the domestic blank with new waterproof packaging paper and paperboard (acid-free waterproof archive paper). The company has started projects since 1996 and has invested 3.15 million yuan to develop new waterproof packaging paper. According to relevant experts, the scope of application of new waterproof packaging paper and board is very wide.