Rohm and Haas promotes the development of waterborne packaging adhesives (I)

In 2005, it was another year to advocate green food packaging. However, on July 24th, the “Weekly Quality Report” section of the CCTV news channel once again exposed serious problems in domestic food packaging. The main cause of the problem was the organic solvents brought into printing and compounding.

According to reports, a strange smell was found in the potato chips of a food manufacturer in Gansu Province. After investigation, it was found that the main reason was that there was a triple of residual “benzene” above the packaging composite film—a state-designated class II carcinogen. One of them, it is mainly used as a solvent, used in the coatings, building materials and printing industries, to dilute and help dry. In food packaging products, the national standard clearly stipulates that the residual amount of benzene per square meter of product must not exceed 3.0 milligrams.

After the broadcast of the program, many color printing and packaging companies began to adjust their thinking, with a view to reducing the organic solvents that may be brought into printing and compounding. Not only that, many food manufacturers are also worried that their products will be tested on the shelves of the mall. It is understood that the composition of food flexible packaging is mainly plastic film or aluminum foil, adhesives and inks, of which plastic film and packaging equipment accounted for 70% of the total cost of packaging, adhesives accounted for 10%, ink accounted for 10%, other accounts for 10 %.

At present, solvent-based polyurethane adhesives and toluene inks are commonly used in the domestic market. There are serious health problems and safety hazards in applications. First, a large amount of harmful substances such as benzene, toluene, etc., which are discharged into the air, pollute the environment. It also poses a danger to the health of workers and consumers; and organic solvents may remain between the composite membranes and migrate from the membrane to the food over time to degenerate and deodorize.

Rohm and Haas is a leading multinational company that promotes water-based composite adhesives in China's flexible packaging market. She is also the first company to commercialize water-based adhesives in the Chinese market. Rohm and Haas Company believes that the flexible packaging market in Europe and the United States currently uses water-based and solvent-free series. The development direction of China's flexible packaging market is undoubtedly more environmentally friendly and healthier. Rohm and Haas Company helps its customers to cope with future regulations.

Four years ago, when some companies thought that water-based adhesives lacked room for development, Rohm and Haas continued to work hard for the market for many years, adhering to its sense of social and environmental responsibility and confidence in its own strong technology. Most of the domestic peers took a wait-and-see attitude at that time. Some people even wrote an article saying that China is not suitable for the development of water-based adhesives such as environmental protection adhesives, but the practice has proved that China's flexible packaging industry is the recognition of advanced technology and environmental protection products.

At present, Rohm and Haas has accounted for about 90% of the global market for water-based adhesives in the flexible packaging industry. Many well-known domestic egg yolks, biscuits, instant noodles, cereals, soy milk, etc. even specify its packaging manufacturer to use waterborne adhesives produced by Rohm and Haas. End-user support has accelerated the promotion of water-based adhesives in China.

Rohm and Haas Company is the world's largest manufacturer of acrylic emulsions and has invested in the construction of two acrylic emulsion production plants in Beijing and Shanghai, China. Rohm and Haas introduced the mature environmentally friendly water-based adhesive in the US market. It does not contain organic solvents and its performance can fully meet the dry compounding between film and film, film and aluminized film used in general food packaging. Requires alternative solvent-based polyurethane adhesives and can be used on solvent-based dryers.

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