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Ethylene Vinyl Alcohol (EVOH) copolymer stands as one of the most prominent high-barrier materials utilized in the packaging industry today. Formed by copolymerizing ethylene and vinyl alcohol, EVOH combines the processability of ethylene with the exceptional gas barrier properties of vinyl alcohol. In modern packaging designs, single-layer plastics often fail to meet the stringent demands required to protect sensitive products from oxygen, moisture, and chemical degradation. This is where EVOH granule plastic raw material for multilayer structures becomes indispensable.
By integrating EVOH as a core functional barrier layer within a coextruded or laminated structure (typically ranging from 5 to 9 layers), manufacturers can dramatically extend the shelf life of food, maintain the sterile integrity of medical products, and prevent volatile chemical permeation. This composite approach leverages the unique strengths of various polymers: polyolefins (like PE and PP) provide structural strength, moisture barriers, and heat sealability, while tie layers ensure perfect adhesion, and the EVOH layer acts as an impenetrable shield against oxygen, carbon dioxide, nitrogen, and organic fragrances.
Since its establishment in 1950, TPS Specialty Chemical Limited has always focused on innovation and development in the chemical industry. Headquartered in Argentina, after more than 70 years of development, TPS has grown into one of the leading companies in the global chemical industry. We have branches around the world, especially in Hong Kong, which has laid the foundation for our rapid growth in the Global market. As a company with an international vision, TPS actively seeks in-depth cooperation with well-known local chemical companies in many countries and regions to jointly develop a series of innovative products with market competitiveness.
Founded in 1950, TPS Specialty Chemicals Co., Ltd. is a global supplier of specialty chemicals and polymer materials, providing a comprehensive product portfolio and full-service solutions to customers worldwide. Guided by the philosophy of "complete product categories, integrated services, and deep value-chain expertise," TPS focuses on EVOH resin, CPP and PVDC raw materials, specialty equipment, and high-performance plastic additives, delivering reliable and efficient solutions for diverse industrial applications. With decades of experience in the polymer and materials industry, TPS has developed strong partnerships with leading chemical manufacturers across China and international markets. As a professional polymer materials supplier and specialty chemicals distributor, we not only ensure consistent product quality and stable supply, but also support customers with application guidance, technical consultation, and customized sourcing solutions.
The global market for EVOH granule plastic raw materials is experiencing robust growth, driven by the escalating demand for high-performance packaging that minimizes food waste and complies with strict environmental standards. Industrially, EVOH is recognized as a vital component in reducing plastic usage overall. By utilizing a micro-thin layer of EVOH (often representing less than 5% of the total structure thickness), packaging designs can eliminate the need for heavy glass, metal foils, or thick single-polymer plastics, thereby reducing transportation costs and carbon footprints.
In the commercial sector, the shift towards flexible packaging formats, such as stand-up pouches, bag-in-box systems, and thermoformed trays, has positioned EVOH as the go-to barrier resin. The chemical industry is continuously optimizing the ethylene content in EVOH granules. Typically, EVOH resins with lower ethylene content (e.g., 27 to 32 mol%) provide the highest gas barrier properties but require precise processing control. Conversely, grades with higher ethylene content (e.g., 38 to 44 mol%) offer superior flexibility and thermoforming properties, making them ideal for complex deep-draw packaging configurations.
Furthermore, strict regulations governing volatile organic compound (VOC) emissions and food contact materials (FDA, EFSA) have standardized the application of high-barrier polymers in industrial containers. The agricultural sector relies heavily on EVOH to contain hazardous pesticides and preserve seed quality, preventing chemical leakage into the ecosystem while protecting the active ingredients from environmental degradation.
In the Chinese mainland, TPS has set up the R&D center in Chongqing City to focus on the research and development of high-tech materials and successfully launched high-barrier material EVOH resin. This product is widely used in food packaging, medicine and cosmetics with its excellent gas barrier properties and chemical stability, meeting the market's growing demand for high-performance materials. Our R&D team combines the technical advantages of Multi-parties and is committed to continuously improving the quality and performance of products in order to better serve customers and the market.
TPS Specialty Chemical Limited has a team of experienced professionals, including chemical engineers, R&D experts and marketing personnel. With their deep industry knowledge and rich practical experience, they provide strong support for the company's continuous innovation and development. We always attach importance to the growth and training of employees, and strive to encourage teamwork and innovation in a positive working environment so that every employee can fully realize their potential.
The versatility of EVOH granule plastic raw material allows it to be processed via coextrusion blow molding, cast film extrusion, sheet extrusion, and extrusion coating. Here is a detailed analysis of how EVOH enhances performance across key sectors:
The future of EVOH granule plastic raw materials is deeply intertwined with the global push for a circular economy. Historically, multilayer structures containing disparate materials were challenging to recycle. However, recent technological advancements have introduced specialized compatibilizers (such as maleic anhydride-grafted polyolefins) that allow EVOH-containing multilayer films to be recycled within standard polyethylene (PE) or polypropylene (PP) recycling streams without compromising the physical properties of the recycled resin.
Another major trend is downgauging—the development of thinner coextruded structures. Through advanced die technologies and high-purity EVOH resins, converters can now produce 9-layer or 11-layer films where the EVOH layer is less than 3 microns thick, yet delivers the equivalent barrier performance of older, thicker 5-layer films. This reduction in material usage directly aligns with global corporate sustainability goals to minimize packaging weight and plastic consumption.
Additionally, the development of bio-based EVOH and blends with biodegradable polymers (such as PLA and PBAT) is gaining traction. The integration of UV-resistant additives directly into the EVOH multilayer structure is also expanding, particularly for outdoor agricultural applications and long-term storage of seeds and chemical pesticides, protecting the contents from solar degradation while maintaining gas containment integrity.
Looking to the future, TPS Specialty Chemical Limited will continue to expand its global business and actively respond to market challenges with the purpose of "innovation-driven, win-win cooperation". We believe that through close cooperation with partners, TPS will play a more important role in the global chemical industry and create greater value for customers and society.