In today’s highly competitive market for premium packaging materials, manufacturers of EVOH high-barrier films are under increasing pressure. On one hand, raw material costs continue to climb; on the other, environmental regulations grow ever more stringent. Against this backdrop, improving production efficiency while controlling costs—without compromising product quality—has become a top priority. Electron Beam (EB) curing technology is emerging as a transformative solution that addresses both challenges head-on.

As one of the core processes in co-extruded film manufacturing, the blown film method has demonstrated distinct advantages in producing EVOH high-barrier films. With the global demand for advanced barrier packaging continuing to grow—particularly in food, medical devices, and automotive components—mastering the blown film process for EVOH materials has become a key competency for industry players.

In EVOH high-barrier film manufacturing, tension control plays a critical role—not just in process stability, but also in determining the overall quality and performance of the final product. As global demand for high-barrier packaging continues to rise—particularly in food, healthcare, and automotive sectors—mastering precise and adaptive tension control has become a fundamental requirement for competitive production.

EVOH (ethylene-vinyl alcohol copolymer) films are widely recognized for their outstanding oxygen barrier properties, making them an essential material in high-end packaging applications such as fresh food, ready meals, and perishable goods. However, one recurring technical challenge during film production is winding deviation—an issue that significantly impacts both product quality and production efficiency.

With increasing attention to food safety and tighter environmental regulations, concerns about chemical residues in packaging have become critical. Traditional curing processes often rely on solvents and photoinitiators, which pose migration risks and may compromise both food safety and flavor. Electron beam (EB) curing technology offers a clean, effective solution for EVOH multilayer composite films, eliminating chemical residues while setting new standards for food packaging safety.

In the realm of high-performance packaging, Ethylene Vinyl Alcohol Copolymer (EVOH) has emerged as a key material for applications requiring outstanding oxygen barrier protection. Its clarity, mechanical strength, and excellent gas barrier properties make it a preferred choice in packaging for food, fresh produce, medical devices, and more. Global demand continues to grow, with industry leaders like Kuraray and Mitsubishi Chemical expanding production to meet the rising need for sustainable materials.

One frequently asked question in the field is whether plasticizers are needed to improve EVOH polymer’s barrier performance. The answer is clear: not only are they unnecessary, but adding them can actually compromise the material’s core advantages.

In the field of food and medical flexible packaging, ethylene-vinyl alcohol copolymer (EVOH) has emerged as a key material due to its exceptional oxygen barrier properties, playing a vital role in preserving product quality and extending shelf life. However, traditional EVOH films are highly sensitive to humidity, with their barrier performance significantly declining in high-moisture environments—an enduring limitation for broader application. Today, with the advancement of low-energy electron beam (E-Beam) irradiation technology, EVOH films are entering a new phase of performance. This process not only improves mechanical strength and dimensional stability but also maintains barrier properties under high humidity, offering a breakthrough solution for modern packaging challenges.

As artificial intelligence (AI) gains traction in the chemical industry, EVOH (ethylene-vinyl alcohol copolymer)—a high-performance barrier material—stands at the forefront of a technological transformation. Known for its exceptional gas-blocking capability, oil resistance, and clarity, EVOH plays a vital role in advanced packaging applications such as food films, automotive fuel tanks, and underfloor heating systems. By integrating AI into its production processes, EVOH manufacturing is embracing a smarter, more efficient future.

EVOH (ethylene vinyl alcohol copolymer) is renowned for its outstanding gas barrier properties and mechanical strength. It has become a critical material across premium packaging and industrial applications, particularly in food packaging, fresh produce, medical devices, automotive fuel tanks, and underfloor heating systems. However, during the blown film extrusion process, EVOH-based films are highly prone to various types of wrinkling. This not only compromises the visual quality of the film but can also significantly degrade its barrier performance and functional reliability.

Chili oil owes its distinct aroma to volatile compounds such as limonene, linalool, and trans-2-hexenal—molecules with molecular weights ranging from 136 to 170 g/mol. Unfortunately, these delicate compounds are highly susceptible to oxidation and evaporation. Exposure to light can result in flavor loss exceeding 60% within 30 days, while oxygen ingress contributes to rancidity, with off-flavors becoming noticeable when the peroxide value surpasses 1.5 meq/kg (GB 5009.227-2023). To address this challenge, EVOH (ethylene-vinyl alcohol copolymer) composite films have emerged as a high-performance solution, utilizing molecular-level barrier technologies to protect and preserve the unique character of flavored oils.