The sanitary safety problem of ceramic printing materials used in food packaging mainly refers to the dissolution of heavy metal element lead or cadmium in the glaze layer of glazed ceramics, which is harmful to human health. When these containers are used to hold acidic foods (vinegar, juice) and wine, these substances are easily dissolved and migrated into food, and even cause poisoning. This article will introduce you to the teaching materials.
Now, hot stamping foil is mainly divided into two kinds of printing materials: hot foil and cold foil. Gold foil printing materials must have metallic luster, so most of them contain components such as coloring agents, and people pay more attention to whether they have some harmful substances. Since many environmental regulations stipulate that all kinds of harmful substances in printed materials cannot exceed the standard, there are many hot foil products in the market that meet the environmental protection requirements.
In the future, printed materials will be developed in the direction of low VOC emissions, low heavy metal content, low energy consumption processing, recyclability, and environmental protection that does not harm human and environmental safety. At present, there are already hundreds of printing companies in the country that have carried out green certification. It is possible that after the number of printing companies that have passed the green certification, the state will issue regulations. Recently, developed countries have entered the era of product carbon footprint, and one day in China will be the same. Therefore, printing companies need to achieve energy conservation, environmental protection and emission reduction as soon as possible to enhance their own competitiveness.
Glass is a melt of silicate, metal oxide, etc. It is an inert material and is non-toxic and harmless. However, melamine-poor glass products may have problems with the dissolution of toxic substances from glass raw materials. Therefore, the glass products should be treated with water soaking or heat treatment with dilute acid. Food and medicine with strict requirements for packaging can be changed to soda-lime glass for borosilicate glass. At the same time, attention should be paid to the quality of glass smelting and forming to ensure the safety of the packaged food.
Article source address: http://
Plastic Food Tray,Plastic Catering Trays,Plastic Food Serving Trays,Plastic Container Tray
EVER GREEN(ZHEJIANG)NEW MATERIAL CO., LTD / KUNSHAN GREENPACK CO.,LTD , https://www.changjingpack.com