Function and Types of Food Packaging Bag
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Food packaging bag is a kind of packaging design. To keep fresh and store food in life, product packaging bag is produced. A food packaging bag refers to a film container that directly contacts with food and is used to contain and protect food.
Types of food packaging bags
Type 1: three side sealing bag
As the name suggests, it is the most common type of food packaging bag, that is, three sides are sealed and one opening is reserved for products. The three-side sealing bag has two side seams and one top seam. This kind of bag can be folded or not folded. Stand upright on the shelf with folded edges.
Type 2:self-standing bag
The self-contained food packaging bag is as easy to understand as the name. It can stand up independently and stand on the container. Therefore, the display effect is better and more beautiful.
Type 3: octagonal sealing bag
This is a bag type developed based on a self-supporting bag. Because the bottom is square, it can also stand upright. This type of bag is more three-dimensional, with three planes: front, side, and bottom. Compared with self-supporting bags, octagonal sealed bags have more printing space and product display, which can better attract the attention of consumers.
Type 4: suction nozzle bag
The suction nozzle bag is composed of two parts, the upper part is an independent suction nozzle, and the lower part is a self-supporting bag. This type of bag is the first choice for packaging liquid, powder, and other products, such as juice, beverage, milk, soybean milk, etc.
Type 5:self-supporting zipper bag
Self supporting zipper bag, that is, an openable zipper is added above the package, which is convenient for storage and eating and avoids moisture. This kind of bag is flexible, moisture-proof and waterproof, and not easy to be damaged.
Type 6: back sealing bag
The back sealing bag is a kind of packaging bag which is sealed at the back edge of the bag. This type of bag has no opening and needs to be torn by hand. It is mostly used for small bags of granules, candy, dairy products, etc.
Functions of food packaging bag
The food stored in the packaging bag should avoid squeezing, impact, vibration, temperature difference and other phenomena.
The shell can separate food from oxygen, steam, stains, etc., and anti leakage is also a necessary factor in packaging design. Some packages include desiccants or deoxidizers to extend the shelf life. Vacuum packaging or removing the air from the packaging bag is also the main food packaging method. Keeping food clean, fresh and safe within the shelf life is the primary function of the packaging bag.
It is a good way to save volume to stuff the same kind of small objects into one package. Powder and granular objects need to be encapsulated.
Packaging and labeling tell people how to use, transport, recycle or dispose of packaging or food.
Marketing often uses box labels to encourage potential buyers to buy goods. Packaging design has become an important and changing phenomenon for decades. Marketing communication and graphic design are applied to the highlights of outer packaging boxes and (for some reasons) sales presentations.
Packaging can play an important role in reducing transportation safety risks. Bags can also prevent food from falling into other goods. Food packaging can also reduce the possibility of food being stolen. Some food packages are strong and have anti-counterfeiting marks to protect the interests of businesses from losses. The packaging bag can have laser logo, special color, SMS authentication and other labels. In addition, in order to prevent theft, retailers pasted electronic monitoring labels on food packaging bags, and consumers took them to the outlet of the store for degaussing.
The package may be easy to add, unload, stack, display, sell, open, reload, use and reuse.
A single package helps to keep an accurate picture of the overall situation. For example, the inventory of salt can be known when it is packed. It is also convenient to calculate sales, for example, dairy companies send and recycle milk bottles, rather than letting consumers fill them themselves.
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