Yogurt lid films are primarily made from composite materials, typically consisting of a structure of polyester/aluminum foil/heat seal layer (PET/AL/PE·EVA). This composite structure ensures both packaging performance and ease of use for consumers, while also providing effective protection for the product.
Puncture Issues: Although aluminum foil composite films have high barrier properties, their design must address the puncture issues caused by straws. If the lid film is too easily punctured, it could lead to liquid leakage and packaging damage.
Yogurt Lid Material Structure
- Polyester (PET): Provides strength and durability.
- Aluminum Foil (AL): Ensures good gas barrier properties to prevent contamination and leakage.
- Heat Seal Layer (PE·EVA): Used to bond with the surface of the yogurt cup, creating a strong seal.
Yogurt Lid Packaging Requirements
As living standards improve, people’s expectations for food packaging are also increasing. Yogurt packaging not only needs to have excellent barrier properties to ensure product quality but also needs to be easy for consumers to open.
- 1. Barrier Properties: Packaging materials need to effectively block oxygen and moisture to prevent yogurt spoilage.
- 2. Ease of Opening: The packaging design must consider consumer convenience for opening, avoiding difficulties.
The Role of Aluminum Foil in Yogurt Packaging
- 1. Gas Barrier: Aluminum foil has far superior gas barrier properties compared to ordinary plastics. Although plastics have many small pores, aluminum foil effectively prevents the penetration of air and moisture.
- 2. Strength: Aluminum foil composite films are relatively strong and can effectively protect yogurt from external influences.
- 3. Sealing Process: Aluminum foil can be securely bonded to the yogurt cup using heat sealing, ensuring a strong seal. Aluminum foil’s high-temperature resistance provides better sealing performance.
Aluminum Foil Material Selection for Yogurt Packaging
- Aluminum Foil Specifications: Typically, 30-45 gauge aluminum foil is used, with one side coated with a heat seal lacquer. The heat seal lacquer bonds with the yogurt cup surface when heated and pressed, creating a strong seal.
- Film Embossing: The surface of the aluminum foil can be embossed to meet various packaging needs. Aluminum foil lids can be used to seal cups made from materials such as PP, PS, and PE.
Haomei Yogurt Packaging Aluminum Foil Specifications
1) Thickness: 30 to 45 microns Total thickness (with lamination): 110micron - 130micron 2) Structure:
- aluminium foil + PP easy sealing film
- aluminium foil + PS lacquer
- aluminium foil + PS film
- aluminium foil + PP lacquer
- aluminium foil + PE film
| Typical Alloys | 8011, 8079 |
| Temper | O, H14, H16, H18, H19, H22, H24 |
| Thickness (mm) | 0.015-0.2 |
| Width (mm) | 100-1600 |
| Length (mm) | Coil |
| Packaging | Standard sea export packaging. Wooden pallets with plastic protection, used for packaging coils and sheets. |
Yogurt Packaging Aluminum Foil Chemical Composition
| Elements | Composition /% | ||
| 1235 | 8011 | 8079 | |
| Si | 0-0.65 | 0.50-0.90 | 0.05-0.30 |
| Fe | 0-0.65 | 0.60-1 | 0.70-1.30 |
| Cu | 0-0.05 | 0-0.10 | 0-0.05 |
| Mn | 0-0.05 | 0-0.20 | - |
| Mg | 0-0.05 | 0-0.05 | - |
| Cr | - | 0.05 | - |
| Zn | 0-0.1 | 0-0.10 | 0-0.10 |
| Ti | 0-0.06 | 0-0.08 | - |
| V | 0-0.05 | - | - |
| Al | Rem | Rem | Rem |
Yogurt Packaging Aluminum Foil Mechanical Properties
| Alloy | Temper | Thickness /mm | Tensile strength /MPa | elongation after break /%, (not less than) | |
| A50mm | A100mm | ||||
| 1235 | O | 0.0060 - 0.0090 | 45-95 | 0.5 | |
| 8011 8079 | 50-105 | 1.0 | |||
Yogurt Packaging Aluminum Foil Applications
Scope of Use: Yogurt lid films are widely used for sealing yogurt, cheese, juice, and beverage cups. Due to the high fat and protein content in yogurt, there are stringent requirements for the oxygen barrier properties of the packaging material. Aluminum foil composite lid films meet these requirements effectively.
The aluminum foil composite material used in yogurt lid films not only provides excellent sealing and barrier properties but also ensures ease of opening, maintaining the quality of the yogurt product and enhancing the consumer experience.
Haomei Yogurt Packaging Aluminum Foil Advantages
1. High-Quality Raw Materials
Few Holes: Haomei's 8011-O aluminum foil is precision-manufactured to ensure minimal surface holes, reducing the risk of gas and liquid permeability.
2. Food-Grade Safety
Oil Removal: Our aluminum foil undergoes thorough oil removal during production to ensure a clean, contaminant-free surface, meeting food-grade safety standards.
High-Temperature Tolerance: The foil can withstand high temperatures of 121°C-125°C during cooking without affecting the performance of the base material, ensuring safety and stability during food processing.
3. Environmental and Hygiene Standards
Compliance with National Standards: Our 8011-O aluminum foil meets national environmental and food safety technical requirements, ensuring hygiene and safety during use.
Ease of Opening: The aluminum foil lid films have excellent ease of opening properties. Even after high-temperature treatment, the sealing surface remains residue-free, ensuring product integrity and hygiene.
4. User Feedback
Positive Reputation: Based on user feedback, our 8011-O aluminum foil performs excellently when made into yogurt lid films, meeting various application needs with competitive pricing.