Summer is coming, and the demand for ice packs is increasing. The factory has prepared metallocene EVA and polyethylene raw materials in advance for the production of durable, environmentally friendly, and efficient cold-keeping ice pack products. Its excellent low-temperature toughness, puncture resistance, and sealing performance make it an ideal material in the cold chain packaging field. It provides more reliable solutions for fresh food delivery, medical cold chain, outdoor preservation, and other scenarios.
1. Why are metallocene EVA and polyethylene suitable for ice pack production?
1.1 Low-density polyethylene (LDPE): high transparency and good softness, ensuring the clear and beautiful appearance of the ice pack;
1.2 Metallocene polyethylene (mPE): has excellent low-temperature impact strength and heat sealing performance, and is the preferred material for manufacturing refrigerated and frozen ice packs, gel ice packs, and medical ice packs.
1.3 Excellent low-temperature impact resistance: Traditional polyethylene (PE) is easy to become brittle in low-temperature environments, while mPE has a more uniform molecular structure and remains flexible even at -30°C, preventing ice packs from breaking during freezing or transportation.
1.4 Lightweight and high-strength: Compared with ordinary PE, ice bags made of metallocene EVA are lighter and thinner but more tear-resistant, reducing material consumption while increasing load-bearing capacity and reducing logistics costs.
1.5 Environmentally friendly and recyclable: Metallocene EVA meets food contact safety standards and can be recycled, helping the trend of green packaging.
2. Advantages of ice bag products
2.1 Long-lasting cold-keeping ice bags: Adopting a multi-layer composite structure (LDPE + metallocene EVA, food grade), the cold-keeping time is extended by more than 30%, which is suitable for fresh food delivery and medical cold chain transportation.
2.2 Customized ice bags: The size and thickness can be adjusted according to customer needs, and the brand LOGO can be printed to enhance the brand added value.
2.3 Outdoor portable ice bags: Combining the lightweight characteristics of mPE, develop portable ice bags for outdoor scenes such as camping and fishing.
2.4 Extremely strong low temperature resistance: maintain flexibility and not brittle, suitable for cold storage environment of -40℃ and below
2.5 High strength and pressure resistance: ice bags are not easy to break or leak, and transportation is safer
2.6 Excellent heat sealing performance: the seal is firm, suitable for various heat sealing equipment, and improves the efficiency of automated packaging
2.7 Higher transparency and finish: improve the appearance quality of ice bags, and facilitate product identification and display
3. Production process optimization to ensure quality
3.1 High-precision film blowing technology: ensure uniform thickness of ice bag film and improve cold preservation efficiency.
3.2 Multi-layer co-extrusion composite process: combined with barrier materials, reduce cold air loss and extend cold preservation time.
3.3 Automated heat sealing system: accurately control the sealing temperature to eliminate the risk of leakage.
3.4 Strict quality inspection system: each batch of ice bags undergoes low-temperature folding resistance, load-bearing, and sealing tests to ensure product reliability.
4. Ice bag demand
With the arrival of summer, supermarkets, catering, family needs, medical cold chain, pre-prepared dishes, etc. are in great demand. Ice packs promote the development of cold chain packaging towards lightweight and recyclable directions, contributing to sustainable development goals.
