Food packaging bags are a type of packaging design. In order to facilitate the preservation and storage of food in life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and are used to contain and protect food.
Food packaging bags can be divided into: ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food packaging bags, retort food packaging bags and functional food packaging bags.
The quality of food packaging bags in the flexible packaging industry, especially the hygienic quality, is directly related to the safety of the packaged food. Therefore, it is necessary to ensure that the raw materials and additives used meet the quality requirements of the management system.
It is necessary to improve the industry and national standards for packaging film bags and strictly implement them, strengthen the inspection and supervision of food packaging, prevent unqualified food packaging from entering the market, and strengthen management to ensure the healthy development of the flexible packaging industry.
The inspection items of food packaging single film bags are mainly divided into the following categories:
The appearance must not have any defects such as air bubbles, perforations, water marks, violent tendons, poor plasticization, and fish-eye stiffness that are hindering use.
Specifications, width, length, thickness deviation should be within the specified range.
Physical and mechanical properties include tensile strength and elongation at break, which reflect the ability of the product to stretch during use. If this item is unqualified, the food packaging bag is prone to rupture and damage during use.
According to the different types of product degradation, it can be divided into photodegradable type, biodegradable type and environmental degradation type. The degradation performance reflects the ability of the product to be accepted by the environment after being used and discarded. If the degradation performance is good, the bag will break, differentiate and degrade by itself under the combined action of light and microorganisms, and eventually become debris, which is accepted by the natural environment.
Packaging can play an important role in reducing transport security risks. Bags can also prevent food from being included in other commodities. Food packaging also reduces the chance of food being stolen. Some food packaging is very strong and has anti-counterfeiting labels, which are used to protect the interests of merchants from losses. The packaging bag can have labels such as laser logo, special color, SMS authentication and so on. In addition, in order to prevent theft, retailers put electronic monitoring labels on food packaging bags, and wait for consumers to take them to the outlet of the store to demagnetize.
Post time: Feb-18-2022