Suction mouth self-supporting bag is a common form of liquid food packaging in the market. Because of its self-supporting characteristics, it has a better display effect on the shelf. In addition to the appearance, food manufacturers are more concerned about its packaging performance.

1. Internal requirements of suction mouth self-supporting bag: the internal request of food packaging refers to the technical requirements of food packaging to ensure the quality and quantity of food in its packaging after packaging.

Strength requirement: it means that the package can protect the packaged food from various external destructive forces during storage, stacking, transportation and handling, such as pressure, impact force and vibration force. There are many factors related to the strength of food packaging, including transportation mode (such as automobile, aircraft), stacking mode (such as multi-layer stacking and interspersed stacking) and environment (such as climate and sanitary environment).

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

Respiratory requirements: some exported foods, such as novel fruits and vegetables, still adhere to the respiratory function in the process of packaging and storage. Therefore, such packaging materials may have air permeability or can control respiration, so as to achieve the purpose of keeping fresh.

Nutritional requirements: in the process of packaging and storage, food will gradually lose nutrition. Therefore, the packaging of food should be conducive to the storage of food nutrition, and it is more ideal that nutrition can be locked through packaging.

Other requirements: there are many inherent requirements for food packaging, such as heat resistance requirements, light protection requirements, shatter resistance requirements, moisture requirements, etc.

2. External requirements of suction mouth self supporting bag: the external requirement of food packaging is to reflect the characteristics, performance and image of food by using packaging, and it is also the external visualization and expression mode and wrist of food.

Safety requirements: the safety of food suction mouth self-supporting bag includes hygiene safety, handling safety and application safety. Health and safety means that food packaging materials should not contain substances harmful to human body; in terms of packaging technology, the nutrition, color and taste of the food after disposal should be kept unchanged as far as possible. Safe handling means that the package can ensure the safety in the process of transportation, loading and unloading. It should also include the safety of the consumer's pick-up and after purchase. The use of safety is to ensure that consumers will not be hurt 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 promotion of food packaging includes necessary information promotion, image promotion, color promotion, structure promotion, etc.

The external requirements also include: convenience requirements, suggestive requirements, interest clarification requirements and reasonable clarification requirements.

Dongguan Huadi packaging products Co., Ltd. specializes in the production of infant and child feeding bags, food, daily chemical suction mouth bags, self-supporting valve bags, bags in boxes, food packaging bags, special water bags and other packaging series.