Under the circumstances where global plastic restriction policies are being implemented and the green transformation of the packaging industry is accelerating, traditional PE film packaging paper has gradually withdrawn from the mainstream market due to issues such as non-biodegradability, difficult recycling, and severe secondary pollution. Modified special paper with degradable, breathable, waterproof and oil-proof properties has entered a period of rapid development. Water-based emulsified silicone oil, as the core additive for paper waterproof and oil-proof modification, fully empowers the iterative upgrade of food packaging and industrial moisture-proof packaging. It is the key functional raw material for the green transformation of packaging paper at this stage.

The fibers of ordinary base paper have a loose structure and a high porosity, making them prone to the penetration and diffusion of moisture and oils. They cannot meet the packaging requirements for fried food, frozen ingredients, fresh fruits, industrial hardware moisture-proof and dust-proof, etc. However, the packaging paper modified by water-based emulsified silicone oil can have the silicone oil emulsion evenly penetrate the fiber gaps, fill the microscopic pores, and form a dense hydrophobic and oil-proof protective layer inside and on the surface of the paper after curing. The greatest advantage of this modification method lies in only blocking oil and water, without blocking the ventilation channels. It can achieve waterproof and oil-proof while completely retaining the original degradable, printable and heat-sealable characteristics of the paper, completely solving the industry drawbacks of traditional plastic film packaging being non-aerated, prone to bulging, and difficult to recycle.

Water-based emulsified silicone oil has extremely strong compatibility in application. It can be stably produced by adding to the wet part of the paper machine, spraying later, or impregnation coating. Enterprises can quickly start production without renovating the original equipment. The product uses pure water as the dispersing medium, without solvent addition, low VOC, and no odor. It complies with national food contact material safety standards and is widely used in high-end food packaging such as pastries, fried food, and frozen food. There are no harmful substances released during high-temperature use, and it is safe, environmentally friendly, and stable.

In addition to food packaging, this additive is widely used in industrial moisture-proof kraft paper, building material protective packaging paper, and gift moisture-proof paper, etc. It can effectively resist rain erosion, air condensation, and salt and alkali erosion, significantly extending the storage and service life of paper products. Compared with traditional wax, waterproof resin, etc., emulsified silicone oil has stronger storage stability, does not break down or separate layers over a long period of storage, is resistant to friction and folding, and has a stable and long-lasting modification effect.
Industry research shows that the domestic demand for green waterproof and oil-proof packaging paper will increase by 28% year-on-year in 2026, and the trend of plastic substitute paper is clear. Domestic IOTA food-grade emulsified silicone oil, with high stability, high cost-effectiveness, and environmental protection advantages, is batch-matched with domestic large paper mills, effectively reducing the modification cost of enterprises and helping the packaging industry achieve low-carbon upgrading. In the future, the penetration rate of emulsified silicone oil in special packaging paper will continue to steadily increase.