Migration of food packaging in the packaging industry is widespread. Migration defines the process when substances from packaging are transferred to the product. These can be printing inks, adhesives, plasticizer or aromatic hydrocarbons. The substances are formed during the process of production and recycling of paper and the subsequent use as food packaging. Particularly, frozen dinners, pizza or chocolate packaging (e.g. christmas calendars) are affected by this process.
In oder to avoid migration the use of plasma is outstanding. The adhesion of adhesives or inks is being increased so that environmentally friendly adhesives and printing inks can be used even at early stages of the manufacturing process and the transfer of substances to the product is being avoided. As a result, food-grade substances can be used and harmful chemicals that might occur on food products can be bypassed.