The advantages of biaxially stretched nylon

In the film market, PE, PP, PET and BOPP are generally used as manufacturing materials. However, in recent years, an emerging thin-film biaxially-oriented polyamine (BOPA, also known as biaxially stretched nylon) has attracted the attention of users. Currently in China, the consumption of BOPA is more than 10,000 tons, and it is expected to rise to 20,000 tons in the near future. The potential is huge and cannot be ignored.

Biaxially oriented polyamine (BOPA) films are particularly suitable for sandwich materials and surface-to-plate printing, and are widely used in high value-added decorative packaging and critical rotogravure printing.

Since the gas and aromatic barrier properties are between good and excellent, BOPA films are particularly suitable for aromatic sensitive packaging, such as perishable foods that require extended shelf life. PVDC-coated and metallized films retain these properties and provide an excellent oxygen barrier for extended shelf life.

Other excellent mechanical properties, including puncture resistance, impact resistance, blast resistance, and abrasion resistance, provide extremely high levels of security in demanding consumer packaging and shipping packages. With a wide range of applicable temperatures, it can be used in a variety of applications from freezing to steam sterilization.

In addition, it has good chemical resistance to organic solvents and many other chemicals, making BOPA films suitable for the most challenging end uses.

Its bi-directional (longitudinal and lateral) shape is excellent in stability, ensuring balanced performance on the processing line and packaging line. Together with the excellent surface finish and transparency of the BOPA film, it is particularly suitable for the appearance of the packaging that is required for the sale.

Unique performance of BOPA film

BOPA has a series of unique features that include:

* The best tensile strength, impact strength and puncture strength;
* Excellent flexibility and stress crack resistance;
* Excellent abrasion resistance and puncture resistance;
* Excellent gas (oxygen, nitrogen, carbon dioxide), fragrance and odor barrier properties;
* Oil, grease, chemicals and hydrocarbons;
* Easy to process: coating, metallization, printing, laminating with other substrates, etc.;
* Excellent haze and finish;
* Wide temperature range;
* Strong heat resistance.

Stretching method

DMT offers turn-key solutions for two major BOPA stretching technologies to produce high-quality films.
Synchronous stretching technology: DMT recently launched the market with the latest zoom system. This system has a high production speed and can integrate DMT's stretching technology such as oil-free technology into the special film production line. This technology has successfully operated in many factories around the world.

Progressive Stretching Technology: DMT provides dedicated technologies for the production of first-class BOPA films, including all essential features and related process technologies, resin-specific technologies, anti-bending equipment and optimized production.