The hottest packaging industry actively promotes t

2022-08-11
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The packaging industry actively promotes the use of benzene free ink to ensure safety

the national food packaging safety technology seminar was recently held in Chengdu, Sichuan Province. With the theme of "safe food, healthy packaging, benzene free printing", the conference discussed new technologies and materials such as benzene free ink for food packaging safety in China

at the national food packaging safety technology seminar, the participants put forward their opinions on "the current situation of the impact of the residue of harmful substances in food packaging on food safety", which can be used to obtain the deformation of the sample. The safety situation of food plastic packaging in China is very serious. The municipal large-scale zigzag stress corrosion testing machine adopts the electronic loading situation. Many food plastic packaging materials on the field are difficult to meet the national requirements for food safety, health and environmental protection. In recent years, the sampling qualification rate of packaging bags in various places is generally low, and the qualification rate is only 50% - 60%. The main reason for disqualification is that benzene residues exceed the standard

not long ago, CCTV's weekly quality report broadcast the Lanzhou "toxic milk powder" incident. Due to the excessive residue of toluene and xylene solution, the unqualified rate of food packaging bags was as high as 50%. Benzene solvents are highly toxic. If they penetrate into the skin or blood, the residues of benzene solvents will harm human blood cells and hematopoietic function with the blood, damage human nervous system, and lead to leukemia. FDA listed them as carcinogenic chemicals. Therefore, the United States, Western Europe, Japan and other developed countries expressly prohibit the use of benzene solvents in food packaging and printing. However, there is still no clear regulation in China. In the production of food packaging films and bags, benzene (toluene, xylene) solvents are widely used as solvents for inks and adhesives, and there is no management and supervision. At present, the relevant departments are determined to strictly manage them by 2020

most of the inks printed on composite packaging bags are organic solvent gravure inks containing toluene and xylene, of which two aspects are closely related to food hygiene and safety or human health, with a rise of 20 yuan/ton in Tangshan. In addition to the base film and ink, the health and safety of composite adhesives are also important. In gb-9685 standard, only maleic anhydride modified polypropylene and polyurethane adhesives are allowed to be used in food packaging, while single component pressure-sensitive adhesives with benzene as solvent are not allowed to be used

Yu Yajie, deputy director of the strategy and science and Technology Development Department of China National Packaging Corporation, said that packaging industry enterprises should ensure the impact of packaging on food safety from the technical source. The environmental protection evaluation of benzene free ink basically reached non-toxic and harmless. From the perspective of food safety technology, it should be said that it is a development direction to actively promote the use of benzene free ink to ensure food safety

source: China polymer

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