Long Term Insulated Bento Bag

The outer non-woven fabric is made of chemical fibers such as polypropylene (PP) or polyester (PET) through processes such as spunbond and meltblown. Has good flexibility, is not easily damaged, and its waterproof performance can block external moisture from entering, protecting internal food from moisture; The dust-proof feature also makes it difficult for dust to adhere, maintaining cleanliness inside the bag.

The inner aluminum foil is made of high-purity aluminum or aluminum alloy, which is rolled into extremely thin sheets as the inner layer. It has a high reflectivity for thermal radiation and can reflect most of the heat back into the bag, significantly reducing heat loss to the outside. Aluminum foil has excellent waterproof and barrier properties, which not only prevent water vapor from escaping from the bag and prevent food from spoiling due to moisture, but also its material is safe and non-toxic, meeting strict food packaging hygiene standards, and can directly come into contact with food, ensuring food safety. ​

Intermediate insulation material (such as PE pearl cotton): Made of low-density polyethylene (LDPE) as raw material, it is physically foamed to form numerous independent and sealed bubble structures. PE pearl cotton has excellent thermal insulation performance, which can significantly reduce the speed of heat conduction and further enhance the insulation effect. Its soft texture provides good cushioning protection for the food inside the bag, while also reducing the risk of food damage caused by collisions. In addition, the material is lightweight and will not significantly increase the overall weight of the bento bag.

 Bag body: Common shapes are square or rectangular to meet the needs of different users. There are various sizes and specifications, for example, the small bag body is about 20cm × 15cm × 20cm, suitable for placing a simple meal and a small amount of fruit; The medium size is about 25cm x 20cm x 25cm, which can easily accommodate regular sized lunch boxes and some drinks; The large size is about 30cm x 25cm x 30cm, which can accommodate larger meal boxes, soup cans, etc., meeting the carrying needs of large food intake or meals for multiple people. Some bento bags are also designed with foldable structures, which can be easily folded into small shapes when not in use, saving storage space and facilitating storage. ​

Handle: It is usually made of sturdy and durable non-woven woven tape, with a width of generally 2-3cm. After careful design, the length is suitable and convenient for users to carry. Some high-end or durability oriented products will undergo special reinforcement treatment on the handle, such as increasing the number of stitching layers, using thicker and tougher webbing, etc., to enable it to withstand heavier objects and ensure that it will not break due to excessive force during carrying, ensuring safe use. ​

Sealing method:
Zipper sealing: Most use metal zippers or high-quality nylon zippers. The zipper is smooth and flowing, easy to open and close, and tightly sealed, effectively reducing heat loss. In daily use, the bento bag can be quickly opened and closed, with convenient operation. ​

Velcro sealing: Easy to use, just gently apply and peel to complete the opening and closing. Velcro has good adhesion and can ensure that the bag opening is tightly closed, preventing heat leakage. At the same time, it does not produce significant noise when opening and closing, making it suitable for use in some quiet situations. ​

Button sealing: The appearance is simple and beautiful, and the sealing performance can also meet basic needs. The button operation is simple, and can be easily sealed by pressing lightly. It is also relatively stable during use and not easy to loosen.

Daily commuting: Office workers bring their lunch to the workplace every day. The non-woven long-lasting insulated lunch bag can ensure that the lunch is kept at a suitable temperature for several hours, allowing office workers to enjoy hot and steaming meals even in busy work, enhancing the dining experience. ​

Students going to school: When students bring their break meals, lunch, or fruits, using this bento bag can ensure the freshness and temperature of the food while showcasing their personality. For schools without heating equipment, insulated lunch bags can allow students to enjoy warm food at any time, which is beneficial for their physical health. ​

Outdoor picnic: When going out for a picnic, various foods and drinks can be placed in bento bags. Its insulation and cooling function can keep food and drinks in ideal condition for a long time, whether it's hot sandwiches, fried chicken, cold salads, or soda, it can add more fun to picnics. ​

Takeout delivery: Catering businesses use this type of bento bag for takeout delivery, which can effectively reduce the temperature changes of food during transportation, maintain the taste and quality of food to the maximum extent, and improve customer satisfaction. At the same time, bento bags printed with the merchant's logo can also play a role in promoting the brand. ​

Shopping and grocery shopping: When purchasing seafood, meat, and other ingredients that require low temperature, use non-woven long-lasting insulated bento bags to prevent the ingredients from deteriorating due to temperature rise. They are more environmentally friendly and durable than ordinary plastic bags, providing better protection for the ingredients.