How to achieve portable and efficient full-scenario refrigeration and preservation through a multi-layer composite plastic film ice pack?

Material structure:

Regular Lunch Box Plastic Film Ice Pack adopts a multi-layer composite structure design, with high-quality plastic film material for the outer layer and condensation gel inside, combined with advanced sealing technology to achieve multiple advantages of lightness, pressure resistance, cold preservation and durability. The main materials include:
PP non-woven or woven outer layer: has good tear resistance and wear resistance, and has a certain flexibility, suitable for multiple bending and repeated use, and is not easy to break.
EPE foam interlayer (2/3/4mm thickness optional): EPE is an expandable polyethylene material with a light structure and excellent thermal insulation performance. It can effectively isolate external temperature changes and provide a stable insulation environment for the condensation material in the ice pack.
Aluminum film coating and PET electroplating layer: through the principle of reflecting thermal radiation, the external heat source is isolated from the outside, the overall cold preservation time is enhanced, and the energy efficiency utilization rate is improved.
LDPE plastic film inner layer: Low-density polyethylene film is flexible and oil-resistant, with good sealing, suitable for direct contact with food, ensuring cleanliness and safety during use.
This structure makes the ice bag itself light and of moderate thickness, making it easy to use with lunch boxes, freezer bags or insulation bags of various specifications.

Functional features:

The biggest advantage of this plastic film ice bag is its efficient and long-lasting refrigeration performance. Users only need to put the ice bag in the freezer of the refrigerator for a few hours in advance (recommended for no less than 4 hours), and it can provide a cooling effect for up to several hours when used, effectively maintaining the ideal low-temperature environment required for food, drinks, medicines, etc.
This product is extremely easy to use, no need to charge, no need for tedious operations, and can be used after freezing, suitable for any group of people and any use scenario. The surface of the ice bag is smooth and easy to clean, and it is not easy to absorb oil and food residues. After use, it can be reused by simply wiping or rinsing with water, reflecting its superior daily practicality and hygiene performance.
And the soft structural design of this bag makes it easy to adapt to the internal space of lunch boxes or insulation bags of different shapes, close to the surface of the food, forming a tight cooling environment, avoiding the loss of cold air, and achieving a better cold preservation effect.

Application scenarios:

Lunch preservation for office workers: For office workers who bring their own lunch every day, Regular Lunch Box Plastic Film Ice Pack provides an ideal solution. With ordinary lunch bags or refrigerated bags, you can keep the food fresh, and no longer worry about the food changing taste due to the increase in ambient temperature. It is especially suitable for the hot summer season.
Portable nutritious meals for students: Primary and secondary school students and people who eat at school at noon can put ice bags and lunch boxes together in lunch bags to effectively maintain the appropriate temperature of nutritious meals such as fruits, milk, and cooked food, ensuring the intake of fresh and safe ingredients.
Outdoor activity refrigeration matching: In outdoor activities such as outings, camping, barbecues, etc., this ice bag can be easily used with insulation boxes or portable refrigerated bags to provide a stable cold source for beer, beverages, fruits, etc., which not only enhances the drinking taste, but also prolongs the preservation time and improves the overall travel quality.
Maternal and infant feeding and drug refrigeration: This product also performs well in short-distance refrigerated transportation of breast milk storage, baby food takeout, or drugs such as insulin. Its safe structure, good sealing, and moderate refrigeration time make it very suitable for families with infants and young children or users who need to refrigerate their medicines.
Fresh food delivery and short-distance transportation: In delivery scenarios such as e-commerce platforms, fresh food supermarkets, and community group purchases, ice packs and refrigerated packaging can be used to temporarily keep fresh food cold, ensure the quality of food during transportation, and improve consumer satisfaction.