Vac pack or vacuum product packaging or vacuum packing is a packaging method which seals the items, especially foodstuff, after getting rid of air from the plan. It is typically utilized for the product packaging of disposable foods by sealing them in a bundle made of plastic film, after getting rid of the air inside it. It can be done by hand as well as automatically through machines according to the volume and purpose of product packaging. Occasionally shrinkable films are also utilized for this purpose to keep the content snugly suited the plan. Main purpose of vacuum product packaging is to extend the life span of disposable foods by getting rid of oxygen from the plan. It also lowers the volume of plan alongwith its contents.
Reasons to prefer vacuum product packaging
Vacuum product packaging is chosen for disposable foodstuff as by reducing the oxygen in the product packaging it not just manages the development of fungi or germs in the plan but also avoids its unstable material from evaporating. Dry foods like nuts, cereals, cheese, treated meats, coffee, crispy potato chips and smoked fish are usually stored for long time in vacuum product packaging. The germs control home of vacuum product packaging also permits you to use it for saving fresh foods including meats, fluids and veggies for brief period. Alongwith food products vacuum product packaging is also utilized for saving a number of non-food products like bedding and clothing to keep them in off season alongwith compressed product packaging of the home squanders etc where you need to pay for their full bag removal. This sort of vacuum product packaging is typically done at domestic level using manual process. Domestic vacuum cleaner is usually utilized for evacuating the air from the product packaging prior to sealing it through a dependable sealant.
How to vacuum packing the products?
Containers like cylinders, plastic bags, mason jars or bottles available in houses can be utilized for vacuum packing numerous sorts of items, food or non-food. While product packaging delicate items like crispy potato chips etc. to avoid their crushing throughout vacuum product packaging oxygen inside the plan is replaced with nitrogen gas. It manages the deterioration of the items in the very same way as the removal of oxygen through vacuum does.
Types of Machines Used for Vacuum Packaging
Numerous sorts of vac pack machines are utilized for domestic as well as commercial product packaging food and non-food items. They are generally classified into 2 sections external sealing machines and internal sealing machines. Brief details about these vacuum product packaging machines is provided right here under for your assistance.
External Sealing Machine
While product packaging an item through vacuum product packaging process a plastic bag is externally attached to the vacuum sealing equipment which eliminates the air in the bag and seals it. As the items are sealed outside the equipment so the equipment utilized for vacuum product packaging is know as external sealing equipment.
Internal Sealing Machines
Numerous sorts of internal sealing machines are utilized for vacuum product packaging of the items including single vacuum chamber machines, double vacuum chamber machines, automatic belt vacuum chamber machines and thermoforming or rollstock vacuum product packaging machines.
Single vacuum chamber machines: The entire product needs to be put into the equipment while vacuum product packaging it through single chamber vacuum chamber equipment. The product to be sealed is put in a plastic bag inside the equipment and the air is removed after closing the lid of the equipment and the plan is heat sealed. All the continuing to be air in the bag is squeezed by the air can be found in through an outside vent which automatically opens after sealing the bag. The plan is then removed by opening the lid of the equipment. This method is typically utilized for product packaging low to medium volumes of solids as well as liquid items.
Double vacuum chamber machines: These sealing machines are usually utilized for medium volume of product packaging. The entire process runs like the single vacuum chamber machines but the only distinction is that they help in increasing the performance of the unit. Their completely automatic or spring-weighted lids usually swing from one side to the other. These machines are typically utilized for the vacuum product packaging of processed meat, fresh meat, chocolates and sweets, hard and soft cheese etc..
Automatic belt vacuum chamber machines: The items are completely put in flow wrapped pouches or plastic bags inside the automatic belt vacuum chamber machines which is automatically placed on the seal bar of the equipment by traveling on their conveyor belts. The lid is closed and the plan is sealed after getting rid of air from it. Though the entire process after sealing the product is similar to that of single or double chamber machines but its high speed conveyor belt permits you to vacuum plan large size items quickly. They can also be utilized for packing liquid items. The lid of these machines goes up and down throughout the process. They are typically utilized for packing large logs of sausage, tough and soft cheese, processed meat and fresh meat etc.