Use and Performance of BOPP Anti-Fog Film?

BOPP anti-mist film use and performance, BOPP anti-mist film is mainly used for vegetables, fruits, flowers, sushi, cold meat and other fresh commodities display packaging, BOPP anti-mist film has excellent anti-mist, high heat sealing strength, high heat intensity, high smoothness, high opening.

BOPP anti-fog film is a kind of functional film which can prevent water vapor from forming fog on the surface of the film and affect the transparency. Mainly used for vegetables and fruits. For the display packaging of fresh commodities such as flowers, sushi and cold meat, when the packaging bags made of ordinary BOPP film are packed with the above fresh commodities, the temperature of the fresh commodities varies greatly in the process of storage, transportation and sales due to the large water content of the fresh commodities, and an opaque layer of water mist is generated in the inner layer of the packaging bags, resulting in the user cannot see the goods in the bag. The goods in the bag are easy to deteriorate and rot after contact with water mist, rapidly shortening the shelf life and shelf life of fresh goods, and the appearance of anti-mist film, not only improves the display of fresh goods, but also effectively extends the shelf life and shelf life of fresh goods, so it is widely used in supermarkets.

BOPP anti-fog film has excellent anti-fog, high heat sealing strength, high heat intensity, high smoothness, high opening, high puncture resistance, high transparency, and safety and health, non-toxic and harmless. At present, according to its characteristics, it can be further developed in the aspects of functionality.

To overcome the difficulties of the domestic BOPP industry can not do anti-fog film, and according to the size of the anti-fog additive control anti-wen effect of the temperature and time.

Key technical content: formulation technology of anti-fog master material; BOPP production anti – fog material added proportion :BOPP anti – wen film process control conditions. The addition amount of anti-fogging agent is insufficient and the effect of anti-fogging is poor. The addition proportion of excessive film fog increases, and the winding is difficult and the cost increases. At the same time, the selection of anti-viscosity additives and the proportion of the dosage should also find a balance between the opening and fog degree. Anti-fog film has higher requirements for heat sealing. Ordinary heat sealing film only needs to reach 10N/15mm, while anti-fog film requires more than 20N/15mm.

In order to achieve high and low temperature anti-fog effect: in 0~4℃ cold room, placed for 24h, no fog drops appear on the surface of the film. When the environment is above 60℃ and between 0℃ repeatedly alternating for 24h, no fog drops appear on the surface of the film.