According to the quality inspection report published by the State Administration of Quality Supervision, the qualified rate is low, and the main quality problem is that the hygiene index does not meet the standard requirements and the product has poor physical and mechanical properties. Health indicators include evaporation residue (acetic acid, ethanol, n-hexane), potassium permanganate consumption, heavy metals, decolorization test.

The composition of the food flexible packaging mainly plastic film and aluminum foil, adhesives and inks, plastic film which accounted for 70% of the total packaging components, adhesives accounted for 10%, ink accounted for 10%, the other 10%. At present the domestic market is commonly used in solvent-based polyurethane adhesives and toluene inks, there are serious health problems in the application and security risks. First of all, a large number of emissions in the air solvent benzene, toluene and other harmful substances on the environment pollution, but also on workers, the health of consumers poses a hazard.

And organic solvents may remain in the composite membrane, with the passage of time, migration from the film to the food, so that metamorphism, taste; Second, many companies do not monitor the effective control of solvent residues in packaging; And the neglect of the transport process may also lead to pollution. Therefore, only when all links have been effectively controlled, companies can ensure that the production of packaging materials is safe.

In Europe and the United States, flexible packaging adhesives have gradually turned to water-based or solvent-free products (Rohm and Haas Company is the world's largest water-based adhesive supplier in the Chinese food and pharmaceutical flexible packaging market, Rohm and Haas introduced The United States market has mature environmental water-based adhesives, the company's water-based adhesive series does not contain TDI and organic solvents, its performance is fully meet the general snack food packaging used in the film and film, film and Du Lvmo And solvent-based dry compound to use); and alcohol-soluble ink to replace toluene inks are also in Europe and the United States, Japan and even South Korea has become the main trend (Switzerland Sikh Bai (Germany) Shanghai) Ink Co., Ltd.