Many glass bottle storage jars, for the sake of beauty, will undergo deep processing, such as silk screen printing, baking flowers, etc. However, in recent years, glass jar containers exported to the European market must require lead-free chrome paper when baking flowers, which is harmful to the human body The environment is harmless and pollution-free. Many glass bottle baking factories bake glass jars with silk screen and water transfer decals together with lead-free chrome decals, which will directly affect lead-free chrome products. 1. Whether it is printing or baking, the lead-chromium-containing and lead-free chromium-containing products must be opened separately, not in the same warehouse. 2. When the workers operate, the printing ink and machine must have an independent and complete workshop. 3. After the glass container is decaled, the lead-chromium-containing and lead-chromium-free ones must also be opened when they are dried naturally. 4. When entering the baking oven, do not mix and bake, as this will cause lead-chromium-containing products to contaminate the lead-free chrome patterned products through high-temperature air convection.