The production of food packaging cardboard of Golden Paper Group roughly includes raw material selection - pulping process ---- paper formation - paper pressing and drying - coating ---- slitting - packaging - quality testing.
First of all from the source are after strict screening of wood suitable for pulping, to ensure that the production of food packaging paper is safe and non-toxic, in line with international FSC standards.
Secondly, the pulping process is to break down the lignin through chemical pulping, the pulp fiber produced by this method is of good quality and suitable for food packaging, and meets the certification of the international food safety management system ISO9001, ISO22000.
Once pulping is complete, the pulp is filtered through the paper machine mesh to form the preliminary paper, which is then subjected to hot rollers and vacuum technology to remove moisture, resulting in a uniform, strong paper. This step also determines the final physical characteristics of the paper, including thickness, flexibility and flatness.
Once the paper is finished, it is coated with an EU food safety certified coating, typically PE or PLA, to ensure the safety of the food wrapping paper.
Finally, the paper is cut and packaged according to the customer's order requirements, and before shipment of strict quality testing within the factory, including thickness, strength, surface finish, waterproofness, hygiene indicators, etc., after passing the test, allowed to enter the warehouse shipments to ensure that the paper in the transportation and storage safety.
The production of food packaging cardboard is a complex process, and quality control at every stage is essential to ensure that the performance of the finished paper meets the hygiene, safety and functional requirements of food packaging.