Product Details
Cold chain insulated bags are functional packaging designed specifically for transporting fresh agricultural products, medicines, ice cream, and other low-temperature items. The cold chain special non-woven insulation bag adopts a multi-layer composite structure (including insulation layer, reflection layer, sealing layer, etc.) to block internal and external heat exchange, and is combined with refrigerants such as ice bags/dry ice to maintain a low temperature environment inside the bag (usually -20 ℃ to 10 ℃), ensuring stable quality of the goods during transportation. Its core characteristics are long-term cold insulation, strong sealing, and impact resistance. It is widely used in e-commerce fresh food distribution, pharmaceutical cold chain transportation, ice cream distribution, and other scenarios.
Product Parameters
Outer material: Oxford cloth (210D-1680D), PE woven cloth, wear-resistant non-woven fabric
1680D Oxford cloth is suitable for long-distance transportation (wear-resistant);
PE woven fabric has high cost-effectiveness and is suitable for short distance delivery
Insulation layer material and thickness: pearl cotton (3-10mm), polyurethane foam cotton (5-15mm), bubble film (double-layer composite)
Polyurethane foam cotton has the best insulation performance (insulation time is 30% longer than pearl cotton), but the cost is higher;
Pearl cotton is lightweight and has good cushioning properties
Reflective layer:
Aluminum foil: (thickness 0.01-0.03mm), aluminum foil reflectivity>90%
Aluminum plated film (PET based): Aluminum plated film is thinner and lighter, but has slightly lower reflectivity (about 80%)
Inner layer material: food grade PE film, CPP film, aluminum foil composite film
All comply with FDA or GB 4806.7 standards and can directly come into contact with food/medicine
Dimensions (length x width x height):
20 × 15 × 10cm (small, such as vaccines, small portions of fresh food)
40 × 30 × 25cm (medium, such as 3-5 kg of fruit)
60 × 40 × 30cm (large, like a whole box of seafood)
Customizable ultra large size (such as 120 × 80 × 60cm) for large cold chain items
Sealing method: Waterproof zipper (PVC/TPU material), Velcro+pressure strip, heat sealed edge
The waterproof zipper has the best sealing performance (suitable for deep cold scenarios below -18 ℃);
Hot sealed edges suitable for disposable use
Cooling duration:
5-24 hours (ambient temperature of 25 ℃, equipped with 1-2 ice packs)
24-72 hours (with sufficient ice packs or dry ice)
For every 10 ℃ increase in ambient temperature, the cooling time is shortened by about 20% -30%
Temperature resistance range: -30 ℃ to 60 ℃, can withstand short-term contact with refrigerants (such as dry ice -78.5 ℃), and the outer material does not deform
Load bearing capacity: 5-30kg Oxford cloth+thickened stitching version can bear up to 20-30kg, suitable for large items
Reuse times: 5-50 times (washable), 1 time (disposable). When hand washing, the water temperature should be ≤ 30 ℃ to avoid rubbing the aluminum foil layer
Our Advantages
Outer layer: mostly made of wear-resistant Oxford cloth (210D-1680D) or PE woven cloth, tear resistant, waterproof, and protects the inner layer structure;
Insulation layer: The core is made of pearl cotton (EPE), bubble wrap, or polyurethane foam (PU), which blocks heat conduction through sealed air. The thickness is usually 3-10mm (the thicker the thickness, the stronger the insulation);
Reflective layer: aluminum foil or aluminum plated film, reflecting external infrared thermal radiation to reduce heat intrusion;
Inner layer: food grade PE film or CPP film, waterproof and oil resistant, to prevent refrigerant condensation water leakage, and compatible with food/pharmaceutical contact.
Key functions
Long term cooling: When combined with refrigerant, it can maintain a low temperature for 5-72 hours (depending on the ambient temperature and specifications);
Sealing: Waterproof zippers, Velcro+pressure strips or heat sealing processes are often used to reduce air convection;
Weather resistance: can adapt to environmental temperatures ranging from -30 ℃ to 60 ℃, resistant to drops and squeezes, and protects internal items;
Reusable: Some styles support recycling after cleaning, reducing long-term costs.
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