A storage bag to be used for heat retention and the production method of the said bag

The multilayer storage bag with BOPP, METPET, PE, and batt layers, along with a locking mechanism, addresses the limitations of existing packaging by providing long-term temperature retention and durability, ensuring food safety and quality during transportation and storage.

WO2026127917A1PCT designated stage Publication Date: 2026-06-18EGEMEN HEDİYELİK EŞYA OYUNCAK ZÜCCACİYE ELEKTRONIK GIDA TEKSTIL INS AMB MED URUNLER SAN VE TIC AS
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
EGEMEN HEDİYELİK EŞYA OYUNCAK ZÜCCACİYE ELEKTRONIK GIDA TEKSTIL INS AMB MED URUNLER SAN VE TIC AS
Filing Date
2025-12-05
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Existing heat-insulated packaging solutions, such as aluminum-coated and polystyrene packaging, fail to provide long-term temperature retention and are prone to damage, while silica-gel packaging is costly and limited in heat retention, posing risks to food safety and quality during transportation and storage, especially under high temperatures.

Method used

A multilayer storage bag with five layers (BOPP, METPET, PE, batt, milky-white polyethylene, and a locking mechanism) provides high thermal insulation, retaining temperature for extended periods and resisting physical impacts, with a carrying capacity of 5 to 20 kg.

Benefits of technology

The multilayer bag effectively maintains food temperature for a prolonged duration, ensuring food safety and quality by preventing heat loss and damage, while being cost-effective and durable.

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Abstract

The present invention relates to a storage bag for retaining the temperature of food products for a certain period and to the production method of the said bag. The said multilayer bag comprising a lock at the mouth portion ensures that frozen products or products which must be kept hot or cold are stored for a certain period without deterioration, particularly during summer months when the air temperatures are high.
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