Internal and external requirements of the hottest

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Internal and external requirements of food packaging

from the perspective of packaging performance, food packaging requirements can be divided into internal and external parts:

1. Internal requirements are good quality and high precision in order to detect good products: the internal requirements of food packaging refer to the technical requirements to ensure the quality and quantity of food in its packaging through packaging

strength requirements: it means that the package can protect the packaged food from various external destructive forces, such as pressure, impact and vibration, during storage, stacking, transportation and handling. There are many factors related to the strength requirements of food packaging, mainly including transportation mode (such as cars and planes), stacking form (for example, researchers from Plekhanov University of economics in Moscow reported in the new issue of the Dutch Journal of polymer and environment that the competitiveness of layered stacking and cross stacking markets will also be further improved) and environment (such as climate and sanitary environment)

barrier requirements: barrier is one of the important properties in food packaging. Many foods in storage and packaging, due to the poor barrier, the flavor and quality of food change, and ultimately affect the quality of food. The barrier requirements are determined by the characteristics of food itself, and its characteristics include external barrier, internal barrier or selective barrier, etc. The barrier substances include air, water, grease, light, microorganisms and so on

respiratory requirements: some exported foods, such as fresh fruits and vegetables, still maintain respiratory function during packaging and storage. Therefore, such packaging materials or containers have air permeability, or can control respiration, so as to achieve the purpose of fresh preservation

nutritional requirements: food will gradually lose nutrition during packaging and storage. Therefore, food packaging should be conducive to the preservation of food nutrition, and it is better to lock nutrition through packaging for a long time. Other requirements: there are many internal requirements for food packaging, such as heat resistance requirements, light resistance requirements, shatterproof requirements, moisture requirements, etc

2. External requirements: the external requirements of food packaging are to use packaging to reflect the characteristics, performance and image of food, and it is the external visualization and expression form and means of food

safety requirements: the safety of food packaging includes health safety, handling safety and use safety. Health and safety means that food packaging materials should not contain substances harmful to human body; In terms of packaging technology, the nutritional composition, color and taste of the processed food should be kept unchanged as much as possible. Handling safety refers to that packaging can ensure the safety in the process of transportation and loading and unloading, and it should also include the safety of consumers when shopping and after shopping. Use safety is to ensure that consumers will not be injured in the process of opening and eating

promotional requirements: food packaging is one of the best means of food promotion. The performance, characteristics, eating methods, nutritional components and cultural connotation of food can be publicized on the packaging. The promotional nature of food packaging includes: necessary information promotion, image promotion, color promotion, structure promotion, etc

external requirements also include: convenience requirements, suggestive requirements, interesting description requirements and emotional description requirements

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