Thermoforming is a process that heats up a plastic sheet to a certain temperature after then forming to a desired shape and then trimming. A thermoforming machine is an equipment that forms a sheet of plastic to a certain shape where the food like meat cheese, fish, chicken… put in it and then vacuums the air to outside.
What is Thermorming Packaging Machine
Thermoforming machine which is also called roll-stock machine is an eqipment where the roll passes through a forming tool, and then it is transformed into a tube. The foodstuff is then passed through the tube in different ways depending on its nature. Gas flush is used for atmosphere modification. This technique is applied by a lance that is entered in the tube when the horizontal form-fill-seal machine is operated. Package integrity and leak avoidance must ensure the success of MAP operation. Is should be added that the implementation of hygiene practices is very important in the food industry. Machinery, especially parts that are in contact with foodstuffs, should be cleaned and disinfected regularly.
What is Modified Atmosphere Packaging Used for ?
Thermoforming machines also enable you to flush gas inside the mold cavity to prolong the period of time that food is conserved at the original taste and conditions. This technique is called modified atmosphere packaging (MAP) where first vacuuming the air outside and then flushing the gas inside.
Controlling the temperature and modification of atmosphere are two important factors in extending the shelf life of perishable food. Thermoforming Modified Atmosphere Packaging (MAP) of fresh products depends on modification of the gas composition inside the thermoformed package which should be richer in CO2 and poorer in O2.
Which Plastic Materials Used for Thermoform Machines
Thermoform vacuum and modified atmosphere packaging (MAP) machines uses plastic film, such as low-density polyethylene (LDPE), polyvinylchloride (PVC), polyethylene terephthalate (PET), and polypropylene (PP). The use of these materials is advantageous because of their transparency, their action as barriers to water vapor transmission, and their selectivity in gas permeability.
How You Should Design Modified Atmosphere Package (MAP)
There are several factors affects thermoform modified atmosphere package (MAP) design such as the temperature, the gas composition, the characteristics of the product and its mass, and the permeability of the thermoform packaging material, sheet plastic.
CE Approved Best Standard Thermoforming Packaging Machines
Cehuma manufactures two types of thermoform packaging machines.
CM Series are for full automatic thermoform vacuum and modified atmosphere packaging (MAP) applications for dairy, cheese, meat, chicken, salami, sausages, fish, salmon, schrimps, sandwiches, deserts, sweets, mozzarella, gouda cheese…
YZ Series are for full automatic form fill seal applications like water and carbonated drinks, juices, ketchup, mayonnaise, honey, jam, chocolate paste…
Cehuma’s thermoforming machine designs conform with our clients’ needs to satisfy their current and future business objectives.
Contact us for questions or inquiries about our thermoforming solutions.
