On December 10, 2025, the "2025 Green Packaging Industry-Education Integration Innovation Conference and National Packaging Vocational Education Working Meeting" was grandly held at Guangzhou Huashang Vocational College (GHVC). Co-hosted by the National Packaging Vocational Education Steering Committee and the National Packaging Intelligent Manufacturing Industry-Education Integration Community, the conference focused on promoting the green and intelligent high-quality development of the packaging industry, deepening the integration of industry, education, and science, and gathered experts, academics, and industry leaders. Industry-Academia Collaboration Kicks Off New Chapter As a National Specialized, Refined, Special, and New "Little Giant" enterprise and a national certified reference material development unit, GBPI was invited to the conference. At the event, GBPI and GHVC officially signed a school-enterprise cooperation agreement. Both parties will collaborate on green packaging talent cultivation, joint technological research, and practical training base construction, collectively building an integrated "Industry-Academia-Research-Application" innovation ecosystem. Leaders witnessing the signing included: Lu Kunjian (GHVC President), Huang Junbin (Vice President), Zhao Yongfeng (Vice President), Han Xueshan (Vice Chairman and Secretary-General, China Packaging Federation - CPF), Wu Hongjun (Deputy Secretary-General, CPF), and Zhou Xuehui (GBPI General Manager). During the meeting, many industry experts and teachers visited the GBPI booth, focusing on the technical principles and applications of core testing equipment, such as the Water Vapor Transmission Rate Tester. They highly praised the equipment's accuracy and intelligence, recognizing its technical support for the R&D and quality control of green packaging materials. For years, GBPI has been committed to establishing close partnerships with universities and research institutions, accumulating rich experience in industry-academia-research integration. GBPI maintains in-depth collaboration with numerous prestigious universities (e.g., Tsinghua University, Peking University, Sun Yat-sen University, etc.) on key topics like packaging material innovation, testing technology upgrades, and green production process optimization, injecting strong momentum into industry development. This collaboration aligns closely with the green and intelligent transformation trend of the packaging industry and serves as a pragmatic measure towards achieving national "Dual Carbon" goals and green manufacturing policies, offering a replicable model for industry-education integration. GBPI will use this agreement as an opportunity to continually deepen synergy with vocational colleges, accelerate the transformation of research findings, and contribute to the high-quality development and sustainable green transition of the packaging industry.

[Introduction] Separation membranes, as materials with special selective permeability, enable precise separation, purification, and concentration of substances at a molecular or microscopic particle level. They are widely used in numerous core sectors such as water treatment, food & beverage, pharmaceuticals, chemicals & petrochemicals, and energy. The stability of their performance directly determines the production efficiency and product quality in these related industries. Gas barrier property, being a core indicator for evaluating separation membrane performance, is crucial for ensuring separation purity and efficiency. The following sections provide a systematic analysis covering classification, test methods, core instruments, and actual test results.   ▍1. Classification of Separation Membranes   The separation capability of membranes stems from their "selective permeability." Different types of separation membranes achieve substance separation through different principles, and the gas barrier property directly affects the purity and efficiency of the separation process:   Microfiltration / Ultrafiltration Membranes: Rely on membrane pore size screening for solid-liquid or macromolecule separation (e.g., intercepting suspended solids in wastewater treatment, separating proteins in biopharmaceuticals). Insufficient gas barrier properties can lead to permeation of impurity gases, affecting product purity.   Reverse Osmosis / Nanofiltration Membranes: Rely on selective permeation under pressure driving force for desalination or small molecule separation (e.g., seawater desalination, drinking water softening). Poor gas barrier properties can reduce water flux and desalination rate.   Pervaporation Membranes (e.g., PVA membrane): Used for separating close-boiling mixtures like alcohol-water or organic-water mixtures. The gas barrier property directly determines separation selectivity – if the target gas permeates easily, separation efficiency can be significantly compromised.   Inorganic Ceramic Membranes (e.g., Alumina membrane): Suitable for separation under high-temperature and highly corrosive conditions (e.g., high-temperature fluid filtration in chemical industry). Their barrier property, along with mechanical strength, determines separation stability in harsh environments.   ▍2. Test Method   The performance indicators of separation membranes include separation efficiency, flux, barrier property, stability, and service life. Among these, barrier property testing is a key link in evaluating the comprehensive performance of separation membranes, directly determining their suitability and reliability in complex application scenarios. Referencing GB/T 1038.1-2022 "Plastics - Film and Sheeting - Determination of Gas Transmission Rate - Part 1: Differential-Pressure Method", the differential pressure method is adopted as the core testing method. This method quantifies the rate at which gas p...

  The 10th Second Council Meeting of the China Packaging Federation & the 2025 High-Quality Development Conference for the Packaging Industry successfully concluded on November 25, 2025. Following the conference, organizers arranged a site visit for attendees to the Amcor R&D Center. During the tour of the material testing laboratory, Amcor R&D staff publicly acknowledged the quality of GBPI's testing instruments. Representatives from associations like the Chaozhou Packaging Association and the Guangdong Provincial Packaging Association gathered to listen. After gaining a deeper understanding of the equipment's performance and application scenarios, they unanimously affirmed and recognized the professional quality and technical strength of GBPI's instruments. Amcor and Chaozhou Packaging Association's evaluation of our company's products   The Presence of Domestic Equipment in an Industry Giant's APAC R&D Center   As a global leader in packaging solutions, Amcor's Asia-Pacific R&D Center has always been a bellwether for advanced industry technology. Here, testing instruments from Guangzhou GBPI are clearly visible – equipment used for precisely measuring the barrier properties of films, ensuring the quality and safety of packaging materials for every batch of Amcor products. This "Domestic Force" embedded within Amcor's APAC R&D Center is backed by Guangzhou GBPI's decades of focus and perseverance. Following the meeting, participating organizations visited Amcor's Asia-Pacific R&D Center. "Previously, we often heard companies complain that 'domestic equipment isn't as good as imported,' but today, in a benchmark enterprise like Amcor, we genuinely witnessed the solid capabilities of domestic equipment," remarked visiting association representatives, deeply impressed. This proven "hard strength" wasn't achieved overnight. In earlier years, domestic packaging companies largely relied on imported testing equipment, which not only involved high procurement costs but also faced difficult after-sales service, becoming a bottleneck constraining industry development.   Behind this "hard strength" lies nearly twenty years of dedication and persistence from Guangzhou GBPI. "In 2012, to breakthrough the core technology for the infrared method transmission rate tester, our entire R&D team worked day and night in the lab, repeatedly researching ultra-high precision infrared sensors, using hundreds of rolls of material just for experiments."   From Follower to Leader: GBPI's Code for Breaking Through   Unlike many companies pursuing expansion paths of "big and comprehensive," Guangzhou GBPI has consistently focused deeply on the specific niche of packaging testing, engraving "specialized and refined" into its corporate DNA. The company consistently invests 15% of its annual revenue into R&D. This dedication to innovation has yielded nearly a hundred patented inventions and enabled its pro...

     To deepen industry exchange and explore potential for cooperation, a delegation of clients from Japan and Australia, led by Mr. Arai, visited GBPI for an inspection tour on November 18. Our General Manager, Ms. Zhou Xuehui, along with relevant team leaders, hosted the delegation. Through in-depth discussions, both parties reached a consensus, establishing a solid foundation for future collaboration.       This visit served as a key opportunity for GBPI to demonstrate its core strengths in packaging production equipment and material testing. It also marked a significant step in strengthening ties with international markets. Accompanied personally by General Manager Zhou Xuehui, Mr. Arai and his delegation toured GBPI’s Santou Instrument Laboratory, basic instrument production workshop, application scenario exhibition hall, and dedicated tube sealer production workshop. This comprehensive visit provided them with a full-scale, close-up view of our R&D capabilities and manufacturing strength.      During the tour, Ms. Zhou showcased GBPI’s experimental instruments and core technical expertise, detailing the distinct advantages of our equipment in areas such as precision production inspection, optimization and upgrades, and cutting-edge technological innovation. From breakthroughs in core component development to iterative improvements in overall machine performance, and from laboratory data to digital application outcomes, her explanations gave the delegation a clear understanding of GBPI’s firm commitment to R&D and solid track record in technological innovation. In the subsequent exchange session, Ms. Zhou outlined the company’s technical advantages, core product portfolio, and strategic development plans for the future. She highlighted recent breakthroughs in the intelligent and efficient development of testing instruments. The guests, drawing on their industry experience, provided insightful analysis of current trends and future demands in the global packaging testing market. Both sides engaged in detailed discussions on key topics such as the application of advanced technologies, tailored solutions for specific scenarios, and diverse cooperation models, fostering a productive and engaging atmosphere.      Mr. Arai and his team observed live demonstrations of GBPI’s fully automatic  Rotary Mode Spout Sealing Machine and Dual-channel linear mode corner-spout sealing machine. They also learned about the global reach of our tube sealers and our collaborations with numerous well-known brands. The delegation spoke highly of the equipment’s production stability, high efficiency, and intelligent control systems. Their visit provided a direct and deeper understanding of Chinese enterprises’ technical capabilities in automated production equipment, earning their full recognition of GBPI’s achievements in equipment development and ...

      Recently, representatives from our South American partners arrived at Guangzhou GBPI Packaging Equipment Co., Ltd., embarking on a two-week systematic training program focused on instrument learning and application. During this period, they not only mastered instrument operation and maintenance skills but also experienced the cultural charm of Guangzhou. With advanced testing equipment, a rigorous training system, and an international service philosophy, Guangzhou GBPI provided a professional and memorable learning experience for the clients.  Hands-On Practice To ensure comprehensive understanding and proficiency, Guangzhou GBPI carefully designed the training curriculum. Each day began with theoretical explanations, where experienced engineers elaborated on instrument principles, structures, and functions in an accessible manner. This was followed by practical sessions, where clients, under the guidance of engineers, gradually mastered: The structural principles and core technologies of the instruments. Standardized operational procedures and hands-on practices. Troubleshooting and independent maintenance for common issues. Optimization of testing methods for different materials and application scenarios.   Cultural Exchange and Interaction In addition to the intensive learning schedule, GBPI arranged multiple leisure activities for the clients. Accompanied by GBPI staff, the delegation explored Guangzhou’s distinctive neighborhoods, savored authentic Cantonese cuisine, and immersed themselves in Lingnan culture.   “Guangzhou is incredibly beautiful. Here, we not only experienced the professionalism of a technology enterprise but also felt the city’s inclusivity and cultural charm,” shared the clients during exchanges. The multicultural interactions fostered a friendly learning atmosphere and brought the two teams closer.   Training Outcomes and Feedback By the final stage of the training, the clients were able to independently perform instrument operations, parameter settings, maintenance, and troubleshooting. They expressed that the two-week program not only enhanced their technical capabilities but also deepened their understanding of GBPI’s product systems and brand philosophy.   A client representative remarked: “The professionalism, rigor, and attention to detail at Guangzhou GBPI left a deep impression on us. Every engineer was patient, meticulous, and thorough. We will bring the skills we acquired here back to our headquarters, providing testing solutions that better align with international standards for our local production lines.”   “We extend our gratitude to the entire Guangzhou GBPI team for their thoughtful arrangements and the patient guidance of the training engineers. This experience has provided us with technical knowledge, practical experience, and valuable friendships. We look forward to further deepening our cooperation with ...