Production processes
Microperforation on hot needles
Flexible packaging obtained by the hot microperforation process is mainly used in the food sector for packaging still hot foods such as bread and bakery products. The foils used, resistant and treated, are specially designed to allow transpiration of the packaged product. This allows excess moisture to escape while maintaining its freshness, scent and softness.
Microperforation is adapted to the specific needs of the product: for sliced bread and all products that need slower transpiration (to avoid drying out and hardening), microperforation is used in strips, alternating with non-perforated (smooth) parts that are able to reduce moisture loss. There are 5 types of microperforation available, namely P-Y, P-1, P-3, P-8, P-16.
Macroperforation with compressed air
Macroperforation differs from microperforation due to the diameter of the holes made in the foils. The holes are larger to allow for more proper transpiration. The holes reach a diameter of 8 mm. The large diameter of the holes is especially suitable for all types of fresh produce, especially for those that spoil quickly such as fresh vegetables and fruits. The holes enable adequate ventilation and thus the products maintain their chemical - physical properties and durability. The processed macroperforated foil is suitable for designing a flow-pack system of bags of different shapes and sizes with different types of ventilation to suit their use.
Cutting, winding and folding the coils
The process of transforming large industrial coils into smaller and more manageable coils that can be easily transferred and loaded onto packaging machines is called cutting and folding. It is a very simple process consisting of unwinding industrial coils with rewinding or folding machines that continue to cut and rewind the foil. We produce microperforated, macroperforated, smooth, printed, unprinted coils and laminated coils and semi-sleeves.
Welding and shaping
Welding and shaping of food bags can be performed on smooth, microperforated, macroperforated, printed, unprinted foil and so-called wicket bags. Welding wicket is a type of bag processing. The bags are perforated with a compressed air system and are collected on a wire element (fork), in order to facilitate the packaging of the product on the packaging machine of the end customer.
Lamination
Unroll the first foil and apply the adhesive to the surface of the coating suitable for applying the adhesive to one side of the foil. Unwrap the second foil and glue it to the first foil. As a result, both foils are combined into a single one, which is wound and formed into a coil (duplex coil). We perform lamination of different types of foil, such as BOPP, CPP, PET and LLDPE.Lamination is the process of treating a material in multiple layers so that the composite material achieves improved strength, stability, sound insulation, appearance, or other properties due to the use of various materials such as plastic. The main production process is the lamination of two foils to create a third with new different properties.
Flexographic printing
Flexographic printing meets the needs of the food industry, where the highest standards are required in terms of the quality of input materials and colors, conditions in the room, as well as the printing itself. In flexographic printing, the print graphic is printed on the surface of the foil using ink-coated printing plates. Each print request is followed by agreements between the graphic designer and the client regarding the image to be printed, position, size, resolution, and color. When the client confirms the graphics, we order the production of a cliché. With a flexographic printing machine, we can print on all types of foils and it is useful for both transparent and colored foils, determining the number of colors that will be used from one to eight. The client can choose the color according to the PANTONE scale. Printing can be done on both the outside (non-food contact) and the inside. When printing on laminated foils (i.e."duplex"), the inks that are inserted between the two foils do not come into contact with the products to be packaged, ensuring the hygienic conditions laid down by law.