Frequently Asked Questions About PET Film

Frequently Asked Questions About PET Film

As a top manufacturer and supplier of Pressure Sensitive Adhesive Release Liners and Facestocks, I am here to answer your questions about PET Films.

Coating white PET film

Q1: What is PET material?
PET (also abbreviated as PETE) is an abbreviation for polyethylene terephthalate, the chemical name for polyester. The basic building blocks of PET are ethylene glycol and terephthalic acid, which combine to form polymer chains. The resulting spaghetti-like PET strands are extruded, rapidly cooled and cut into small pellets. The resin pellets are then heated into a molten liquid that can be easily extruded or molded into items of almost any shape.

PET was first synthesized in the mid-1940s when DuPont chemists were searching for new synthetic fibers in North America. DuPont later named its PET fiber "Dacron." Today, more than half of the world's synthetic fibers are made from PET, known as "polyester" when used in fiber or fabric applications. When used for containers and other purposes, it is known as PET or PET resin.

Q2: What is mylar paper?

Mylar paper is paper coated with or made of polyester film BoPET (biaxially oriented polyethylene terephthalate). Mylar is not Mylar itself, but the BoPET brand produced in the US and UK. Mylar is durable and has a high tensile strength; meaning it can be stretched for extended periods of time without breaking. Its reflective and transparent properties make it a great addition to decorative projects as well as many other practical uses.

Q3: What is PET coating?
Frequently Asked Questions About PET Film

PET coating, also known as coated PET film, is a plastic film that has material coated on one or both sides of the film. The type and amount of coating applied determines the physical, mechanical, optical, thermal, electrical and chemical properties. Coated films can also be a combination of coating and treatment, such as coating one side/treating the other side as required by the end-use application.

Q4: How many types of PET film are there?
• PET High Gloss Mask
• PET film
• PET transfer film
• PET reflective film
• PET chemical coating film
• PET anti-static film
• PET heat sealing film
• PET heat shrinkable film

Q5: Is it possible to print on PET film?
There are many different grades of polyester film, some of which are produced specifically to be printable, using specific methods specific to the chemistry of these films. Firsta has a wide range of specific polyester film solutions for many different printing methods, both traditional and digital. If you are looking for laser printable or inkjet printable films, please view our product pages.

Q6: What is the use of PET film?
PET films are often an excellent choice for more demanding applications in food and non-food film applications. Key uses include microwave and medical packaging, plastic wrap, tape backing, printed films, plastic cards, protective coatings such as solar and safety window films, release films, transformer insulating films and flexible printed circuits. PET is also used as an aroma barrier (e.g. coffee and tobacco packaging). Such films are sometimes metallized by metal vapor deposition, which further increases the barrier properties against oxygen, water vapor and aroma loss.

Due to low odor, high chemical resistance and inertness, many PET grades are suitable for packaging applications under FDA regulations.

Polyester films are sold in various types, thicknesses, widths, and properties tailored to meet the specific requirements of a particular end use.

Q7: What is the difference between BOPET(BOPP) and PET?
Frequently Asked Questions About PET Film

BOPET (BOPP) film literally means biaxially oriented polyester film, and PET means polyester chips, which are divided into three categories, large bright polyester chips, full matte polyester chips, and semi-matte polyester chips The three are the raw materials of polyester film. Production of polyester film (PET film). There is no difference between BOPET film and PET film, because the production process of PET film is biaxial stretching, which is the industry standard for BOPET film.

Q8: Is PET a moisture barrier?

PET is commonly used in water bottles, but is also FDA-approved for food packaging, so it can be used to make some flip-top packages. It's highly moisture-resistant, a strong, shatter-resistant plastic, and an affordable option.

That's all for today. If you have other questions, please feel free to come to me, I will do my best to answer you!