Aseptic continuous bags are special packaging products specifically designed for packaging items with high hygienic requirements, such as food, pharmaceuticals, and cosmetics. Their core function is to ensure that the contents remain in an aseptic state during production, transportation, and use, effectively preventing microbial contamination and extending the product's shelf life. The following provides a detailed analysis from four aspects: materials, production processes, application areas, and usage specifications.
I. Material Properties and Structural Design
Aseptic continuous bags are mostly made of high - performance composite materials, combining barrier properties, puncture resistance, and chemical stability. Common materials include:
1. Polyethylene (PE): Mainly low - density polyethylene (LDPE), which features low cost and recyclability, and is widely used in pharmaceutical packaging.
2. Aluminum foil composite materials: Through multi - layer lamination of PET, AL, NY, etc., functions such as light - shielding, moisture - proofing, and anti - static are achieved, making them suitable for the aseptic packaging of precision products such as electronic components and medical consumables.
3. Multi - layer structural design: For example, three - layer aseptic bags significantly enhance high - temperature resistance, impermeability, and antibacterial performance by stacking materials with different functions, reducing the risk of liquid leakage.
In addition, some aseptic bags are designed with openings or zipper structures for easy repeated opening and closing. At the same time, an edge reinforcement process is adopted to avoid damage caused by improper operation during use.
II. Production Processes and Quality Control
The production of aseptic continuous bags must be carried out in a clean workshop. The key steps include:
1. Film blowing and lamination: The raw materials are blown into films at high temperatures and then laminated with functional layers through dry lamination technology to ensure barrier performance.
2. Sterilization treatment: The formed films need to undergo radiation sterilization or high - temperature heat treatment to completely kill microorganisms.
3. Sealing and cutting: Heat sealing, cutting, and vacuum packaging are carried out in an environment with a cleanliness level of ISO Class 5 (Class A).
Harmake single-use 2D storage bags are mainly used in industries such as biopharmaceuticals, laboratories, and clinical diagnostics. The product is made of USP Class VI high-quality biopharmaceutical film, which has the characteristics of low dissolution, high cleanliness, and 100% integrity testing to ensure product quality.