Top and bottom labeling is among the most widely used types of labeling. It is often used to apply variable data to prepackaged food or preprinted packaging, such as an expiration date, a batch number or a list of ingredients. The process is also frequently used to apply promotional labels or the like. For that reason, top and bottom labeling is also used on fresh and prepackaged cheese, sausage and meats. The process is also used for cosmetics, medicines and luxury items. Depending on requirements, only the top or only the bottom may be labeled as the product passes the station. The range of possible primary packaging applications extends from frozen packaging, to cans, to glass and plastic containers. For such consumer products, both speed and precise positioning are important. Top and bottom labeling is also used for secondary packaging like outer cardboard boxes. HERMA has an economical, performance-appropriate system for each area of application.
Important issues for top and bottom labeling
- Appropriate speed: The speed of the labeling system should be between 100 to 250 units per minute.
- Labeling that matches the application: The dispensing equipment used must match the properties of the surfaces to be labeled.
- Exact feeding: The products can be guided using either motorized side belts or special guide rails.
- Precise dispensing: The maximum deviation in the direction of movement should be ± 2 mm and ± 1.5 mm in the transverse direction.