Understanding the Basics of Polyester Film (PET Film)

When it comes to flexible packaging films, there are many options to choose from. But there is one film that is often a top pick because of its versatility and high-performance characteristics &#; PET packaging film.

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What is Polyester Film?

PET stands for Polyethylene Terephthalate. It&#;s often referred to by its common name, Polyester, but in the flexible packaging world it&#;s better known as PET.

PET is a thermoplastic-engineered film, which means it can be formed and manipulated in different ways when a specific heat source is applied to it. It&#;s also one of the most environmentally friendly thermoplastics on the market.

The Evolution of Polyester Film

Polyester film has been around for decades. It was invented in the s by the U.S. fiber manufacturer, DuPont, under the Dacron® name. Over the next several years, the use of cellophane in various applications soon dwindled as clear polyester film gained popularity because of its strength, insulating properties, and resistance to chemicals and heat. Within two decades of its creation, the film was an industry leader &#; and still is.

PET Film Properties

So how did PET film become one of the best multi-use plastic films around? Compared to other common films in this category, it delivers a lot more benefits because of these polyester film properties:

• Higher tensile strength
• Inert to most chemicals
• Excellent dimensional stability
• Excellent electrical properties
• Good thermal stability over wide temperature range
• Low moisture absorption
• Superior UV resistance
• Good optical clarity
• Recyclable
• Bonds well to metal, adhesives, and variety of inks

Types of PET Film

There are several types of PET film that meet a wide range of packaging applications.

There are also many grades of PET film that make it compliant with FDA and USDA regulations. Common applications that might require FDA or USDA compliance would include packaging for the food and beverage industry and the medical/healthcare field where sterilized packaging is needed for products such as face shields or surgical instruments and other medical devices.

At PennPac, we carry extensive product inventory including plain, treated, heat-sealable, metallized, and coated polyester films &#; available in different thicknesses, widths, and properties, and in both rolls and sheets.

Our films include:

• Transparent
• Corona Treat
• Chemical Treat
• One Side Treat
• Matte
• Metallized

To download any of our polyester films spec sheets, visit our polyester films page.

PET vs. HDPE Packaging: What&#;s the Difference?

High-density polyethylene, also known as HDPE, is another common packaging solution used in the food and beverage industry among other industries. Like PET, it&#;s lightweight and impact resistant but there are a few key differences between the two.

Contact us to discuss your requirements of Metallized PET Sheet Manufacturing. Our experienced sales team can help you identify the options that best suit your needs.

• Opacity: Perhaps the biggest difference between HDPE and PET is that PET is typically clear/transparent, while HDPE is translucent. You can see inside the packaging close-up, but at a further distance, the packaging looks opaque.

• Temperature: Both HDPE and PET are heat resistant, but HDPE has a higher melting point (160°F). HDPE also can resist cold better, up to -50°F, compared to PET which can handle temps to -40°F.

• Flexibility: PET is strong yet retains its flexibility. HDPE is on the other end of the spectrum. It&#;s strong yet extremely rigid and difficult to crack.

So which packaging option is best? It all comes down to your application needs. PET is likely the better choice for food and beverage packaging, with HDPE being the better option for heavier-duty packaging and shipping needs.

Common PET Applications

As mentioned earlier, the food and beverage industry is a big user of PET film because of its food-safe qualities. But many other industries rely on PET film. Here are just a few examples:

• Medical and healthcare packaging
• Surface protection for windows, screens, and merchandizing displays
• Pressure-sensitive labels and tags
• Thermal lamination
• Wire and cable insulation
• Electrical components

Contact PennPac for Your PET Film Needs

Our knowledgeable team is ready and waiting to answer any questions you may have &#; just give us a call at 717-664- or connect with us online.

You can also view our FAQ page to learn more about the films and services we offer.

APET sheet has high transparency, high gloss, excellent impact resistance and mechanical strength, excellent printability and barrier properties, non-toxic and tasteless, and is an ideal environmentally friendly packaging material.

Products can be sterilized by gamma ray without damaging their appearance and characteristics, and can economically treat waste, including recycling and burning treatment, etc., are electronic appliances, medical and medical equipment, children&#;s toys, sports protection products, clothing, printing stationery Ideal packaging material for industries such as, food, etc.

It can be formed by blister molding, folding box molding and high-frequency (frequency) thermal synthesis.

• Blister molding
  First, the APET sheet is heated to 90-120°C, and then thermoformed into a variety of packaging containers by blister. For containers that do not require heat resistance, the temperature of the blister mold is 30-50°C. For containers with heat-resistant requirements, it can be obtained by increasing the mold temperature and extending the residence time of the blister.
• Coated silicon sheet
  Silicone (oil) coating is applied on both sides of the material production line, and the product has high transparency, which is used to facilitate demoulding and stripping during the blister process.
• Antistatic sheet
  The antistatic sheet can be produced by adding an antistatic agent inside (the sheet is opaque) and coating an antistatic agent on the outside, which is suitable for blister packaging of electronic components, accessories and other products.

In daily life, PET sheets have a very wide range of uses, and even many of us may not know that these things are made of PET.

such as:

Are you interested in learning more about Anti-static PET Film? Contact us today to secure an expert consultation!

• City light box advertising, bus stop signs
• Home greenhouses, breeding greenhouses
• Noise barriers beside highways and urban elevated highways
• Insulating gasket
• Widely used in household appliances, medical, chemical, electronics, automotive, daily necessities packaging fields, etc.