Cold Form Foil (25 µm OPA/ 45 µm Alu foil/ 100 µm PVC)
Cold Form Foil (25 µm OPA/ 45 µm Alu foil/ 100 µm PVC) consists of a 25 µm OPA layer, 45 µm aluminum foil layer, and 100 µm PVC layer, with the thicker PVC layer providing better mechanical strength and impact resistance. This material is particularly suitable for packaging products that require extra protection, effectively shielding them from external environmental factors and ensuring the safety and efficacy of the internal products, especially for fragile pharmaceuticals and health supplements.
Cold Form Foil is a commonly used composite material for pharmaceutical packaging, especially in single-dose medication packaging such as blister packs. It typically consists of multiple layers of different materials, each with specific functions.
| Material Layer | Thickness | Functions and Features |
| OPA Layer | 25 µm | Provides airtightness and moisture resistance, effectively isolating moisture and oxygen, preventing the medicine from becoming damp or oxidized. |
| Aluminum Foil Layer | 45 µm | Offers standard protective performance, blocking light, air, and moisture to ensure the efficacy of the medicine. |
| PVC Layer | 100 µm | The relatively thick PVC layer enhances mechanical strength and puncture resistance, suitable for packaging with higher protection requirements. |
The aluminum foil layer is usually made of aluminum alloys, with the most common alloy series being 8011, 1235, and 1050. These alloys have good formability, excellent corrosion resistance, and good mechanical properties, making them suitable for the packaging industry.
- Composition: Contains small amounts of iron and silicon, enhancing its strength and corrosion resistance.
- Features: The most common aluminum foil alloy for packaging, especially suitable for food and pharmaceutical packaging. 8011 aluminum foil has high strength, corrosion resistance, and good mechanical properties to meet higher packaging requirements.
1235 Aluminum Alloy
- Composition: Mainly composed of 99.3% pure aluminum.
- Features: Has good processing performance and electrical conductivity, commonly used in packaging and electrical industries. The 1235 aluminum alloy also offers good formability and weldability, making it suitable for food and pharmaceutical packaging.
1050 Aluminum Alloy
- Composition: High purity with an aluminum content of over 99%.
- Features: Exhibits excellent plasticity and ductility, making it easy to produce thin aluminum foil. Due to its lower strength, the 1050 alloy is typically used for packaging applications that do not require high strength.
These alloys offer excellent barrier properties, corrosion resistance, and formability, making them ideal for the aluminum foil layer of Cold Form Foil, ensuring superior moisture resistance, oxygen resistance, and corrosion protection.
Cold Form Foil 25 µm OPA 45 µm Alu foil 100 µm PVC Structure Composition
Cold Form Foil (25 µm OPA/ 45 µm Alu foil/ 100 µm PVC) is a high-performance composite material commonly used in pharmaceutical packaging, especially for single-dose medications such as blister packs. By combining multiple layers of materials, it provides excellent product protection, ensuring the effectiveness, safety, and durability of the medication.
OPA Layer (25 µm)
- Material: The OPA (Oriented Polyamide) layer is 25 µm thick.
- Function: The OPA layer has excellent airtightness and moisture resistance, effectively isolating moisture, oxygen, and other external environmental factors, preventing the medication from becoming damp or oxidized. It provides a sturdy sealed environment for the medicine, helping to extend the medication's shelf life, especially suitable for moisture-sensitive drugs.
Aluminum Foil Layer (45 µm)
- Material: A 45 µm thick aluminum foil layer.
- Function: The aluminum foil layer is the core part of the Cold Form Foil, providing excellent barrier properties to block light, air, and moisture. Its structure ensures that the medicine is free from external contamination, maintaining the stability of the medication. It also offers good shielding performance, helping to preserve the efficacy and safety of the drugs.
PVC Layer (100 µm)
- Material: A 100 µm thick PVC (Polyvinyl Chloride) layer.
- Function: The relatively thick PVC layer in this Cold Form Foil provides excellent mechanical strength, impact resistance, and puncture resistance. It enhances the overall durability of the packaging material, effectively preventing damage to the packaging. The thicker PVC layer is suitable for packaging that requires higher levels of protection, particularly when the medication needs stronger physical protection. It can withstand greater external pressure or impacts, reducing potential damage during transportation and storage.
Cold Form Foil 25 µm OPA 45 µm Alu foil 100 µm PVC Performance Characteristics
High Mechanical Strength
The thick PVC layer provides excellent mechanical protection, effectively resisting external impacts or compression to ensure the packaging is not easily damaged during transportation, storage, and handling.
Moisture and Oxygen Resistance
The combination of OPA and aluminum foil layers offers superior moisture and oxygen resistance, particularly suitable for moisture-sensitive drug packaging, effectively maintaining the efficacy of the medicine.
Suitable for Fragile Products
Especially suitable for fragile medications and health supplements, such as those with unstable chemical properties or sensitivity to humidity and temperature. Its excellent protective performance extends the shelf life of the medications.
Good Sealability
The design of Cold Form Foil ensures good heat-sealing performance, making it easy to process and seal, ensuring the integrity and safety of the packaging, and preventing leakage or contamination of the contents.
Cold Form Foil 25 µm OPA 45 µm Alu foil 100 µm PVC Applications
Cold Form Foil (25 µm OPA/ 45 µm Alu foil/ 100 µm PVC) is widely used in the pharmaceutical packaging industry, particularly for single-dose medication packaging (such as blister packs). It not only effectively protects the active ingredients of the medicine, preventing external factors from affecting the drugs, but also enhances the mechanical strength of the packaging, ensuring safety during transportation, storage, and use. Due to its strong moisture resistance, oxygen resistance, and impact resistance, this composite material is also suitable for the health supplement industry, which requires high packaging standards.
The multilayer structure of Cold Form Foil provides comprehensive protection for medications, ensuring their effectiveness and safety throughout their lifecycle.
