Advantages and characteristics of TPU film in the packaging field

1. Excellent Physical Protection: Ensuring Product Safety

TPU film's physical strength and toughness are its core competitive advantages in the packaging industry. It effectively resists external damage during transportation and storage, making it particularly suitable for applications requiring high levels of protection:

High Elasticity and Impact Resistance: With a stretch rate of 300%-600% and excellent resilience, it can tightly conform to irregularly shaped products (such as electronic components and special-shaped medical devices), cushioning against external forces such as compression or collision, preventing deformation and scratching. Even under momentary impact, it is resistant to cracking, offering protection far exceeding that of ordinary plastic films (such as PE and PVC films).

Abrasion and Scratch Resistance: With a high surface hardness (available in Shore A 60-95) and a low coefficient of friction, the film resists scratches during packaging or long-term storage, protecting the product within while maintaining a clean appearance (e.g., for high-end apparel and sports equipment).

Puncture Resistance: Compared to traditional films, TPU film offers superior puncture resistance, preventing sharp objects (such as metal parts and tools) from piercing the packaging, preventing external contaminants from entering, and preventing product leakage (e.g., industrial parts packaging and medical consumables packaging).

Second, Excellent Barrier Properties: Extending Product Shelf Life/Service Life

TPU film effectively isolates harmful factors from the external environment, creating a stable internal environment for packaged products. It is particularly suitable for applications requiring stringent barrier properties, such as food and medical applications.

Waterproof and Moisture-Proof: Its dense molecular structure provides excellent water resistance and low moisture permeability (as low as 10g/m²/24h), preventing moisture and humidity from entering the packaging, protecting products from dampness and mold (e.g., packaging for baked goods, electronic components, and outdoor apparel).

Oxygen and odor barrier: Some modified TPU films (such as those with a barrier layer) can effectively block oxygen permeation, slowing the oxidation and deterioration of food (e.g., vacuum packaging of fresh meat and seafood). They can also isolate external odors (e.g., environmental odors during cold chain transportation) and prevent the odor of internal products (e.g., spices and fatty foods) from escaping.

Chemical resistance: It is resistant to most acids, bases, oils, and solvents, and will not dissolve or deform due to contact with corrosive substances (e.g., industrial lubricants and food fats). It is suitable for packaging industrial parts and fatty foods (e.g., chocolate and nuts). 3. High Transparency and Appearance Advantages: Enhanced Product Display

The visual appeal of packaging is a crucial factor influencing consumer decisions. TPU film far surpasses traditional packaging materials in terms of appearance:

High Light Transmittance: Pure TPU film boasts a light transmittance exceeding 90%, approaching the transparency of glass. This allows for clear display of product details (such as the freshness of fresh produce, the appearance of electronic products, and the integrity of medical devices), enabling intuitive inspection of product quality without unpacking, thereby enhancing consumer trust.

Controllable Gloss: High-gloss, matte, or matte finishes can be achieved as desired. When combined with printing processes (such as hot stamping or silk-screen printing), the film creates a more refined packaging look, making it suitable for high-end products (such as luxury accessories and premium sports equipment).

IV. Safety, Environmental Protection, and Compliance: Adapting to Sensitive Industry Needs

In sectors such as food and medical, where safety is paramount, TPU film's safety attributes are its core advantage:

Non-toxic and harmless, meeting international standards: Pure TPU material contains no plasticizers (such as phthalates in PVC) or heavy metals, and is certified by the FDA (U.S. Food and Drug Administration), EU No. 10/2011 (EU Food Contact Materials Regulation), and GB 4806 (China Food Contact Materials Safety Standard). It can be used in direct contact with food and medical devices without migration risk.

Recyclability and Degradability: Some TPU films (such as bio-based and biodegradable TPU) can be physically recycled and reprocessed, or naturally degrade under specific conditions (such as composting), reducing "white pollution" and aligning with global green packaging policy trends (such as the EU's "plastic restriction" and China's "dual carbon" goals).

Low-Temperature Resistance: Excellent low-temperature resistance (some models can withstand temperatures below -40°C). It will not become brittle or crack due to low temperatures during cold chain logistics (such as transporting fresh and frozen foods), ensuring packaging integrity.

V. Processing and Usage Convenience: Reduced Packaging Costs

TPU film offers strong processing adaptability, suitable for a variety of packaging processes, and convenient use:

Easy Processing: It can be processed through a variety of processes, including heat sealing, hot pressing, welding, printing, and lamination. It can be combined with other materials (such as paper, aluminum foil, and non-woven fabrics) to create multifunctional packaging films to meet complex packaging needs (such as heat-sealed edges for medical sterilization bags and composite barrier layers for food vacuum bags).

Lightweight and Flexibility: Compared to rigid packaging materials such as glass and metal, TPU film is lightweight and flexible, reducing overall packaging weight (reducing transportation costs). It is also easy to fold and store, saving storage space (such as in foldable waterproof packaging and portable medical device packaging).

In summary, the advantages of TPU film are the comprehensive embodiment of "protection, barrier properties, appearance, safety, and convenience", making it an ideal choice to replace traditional plastic film and PVC film in packaging fields such as food, medical, electronics, and high-end industries.