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Explore our core range of medical-grade PVC flexible packaging products, engineered for precision, safety, and global compliance.
A PVC blood bag is a critical medical-grade flexible packaging solution designed to collect, store, and transfuse human blood and blood components safely. Manufactured from high-purity plasticized polyvinyl chloride (PVC) film, these bags offer exceptional clarity, flexibility, and biocompatibility — making them the gold standard in blood banking worldwide.
Unlike rigid containers, PVC-based flexible bags conform to the volume of their contents, enabling gravity-driven transfusion without the need for air inlet vents, which dramatically reduces contamination risk. The material's inherent oxygen permeability also supports longer shelf life for red blood cell concentrates and platelets.
As a cornerstone of the global flexible medical packaging market, PVC blood bags are subject to stringent international standards including ISO 3826, EN 14683, and FDA 21 CFR, ensuring patient safety at every stage of the supply chain.
Medical-grade PVC formulations tested for cytotoxicity, hemolysis, and pyrogenicity.
RF-welded or heat-sealed seams ensure zero leakage under pressure and transport stress.
Maintains flexibility and integrity from −80°C cryogenic storage to room-temperature use.
Emerging DEHP-free and bio-plasticizer PVC formulations reduce environmental footprint.
High-volume calendering and blown-film lines enable consistent mass manufacturing.
Meets ISO, FDA, CE, EN-71, ASTM-F-963, RoHS, and CONEG international standards.
The PVC blood bag segment is a vital pillar of the $48 billion global flexible medical packaging industry, with robust growth driven by healthcare infrastructure expansion across emerging markets.
The global blood bag market was valued at approximately USD 1.2 billion in 2023 and is projected to exceed USD 1.9 billion by 2030, growing at a CAGR of around 6.8%. PVC-based flexible bags continue to dominate with over 70% market share due to their unmatched combination of cost-efficiency, processability, and clinical performance.
Key manufacturing hubs are concentrated in China, India, and Southeast Asia, where advanced extrusion and calendering technologies have dramatically reduced per-unit production costs while maintaining ISO and FDA compliance. China alone accounts for over 35% of global PVC medical film output, with leading manufacturers like Jiangsu Dahai Plastics Co., Ltd. supplying both domestic hospitals and international distributors across 10+ countries.
Demand is especially strong in regions with rapidly expanding blood banking infrastructure: sub-Saharan Africa, Southeast Asia, and Latin America are experiencing double-digit annual growth in blood bag procurement, driven by WHO initiatives to improve transfusion safety and increase voluntary blood donation rates.
The PVC blood bag flexible packaging market is projected to surpass USD 1.9 billion globally by 2030, with Asia-Pacific leading growth at a CAGR of 7.4%.
Post-pandemic healthcare investment has accelerated procurement of single-use PVC medical packaging, with blood bags among the top three disposable categories by volume.
Chinese PVC blood bag manufacturers are increasingly targeting WHO pre-qualified markets in Africa and South Asia, supported by competitive pricing and improving quality certifications.
R&D investment in DEHP-free plasticizers (TOTM, DINCH) is reshaping formulation standards, opening new premium market segments in Europe and North America.
The industry is undergoing a technological transformation driven by sustainability mandates, digital quality assurance, and next-generation material science.
The shift from DEHP to TOTM, DINCH, and citrate-based plasticizers is accelerating, driven by EU REACH regulations and growing clinical evidence on plasticizer migration in stored blood products.
Machine vision systems and AI-powered defect detection are being integrated into PVC film calendering lines, enabling 100% inline inspection of thickness uniformity, seal integrity, and clarity.
Embedded RFID tags and printed NFC antennas on PVC blood bag surfaces enable real-time traceability from donation center to patient bedside, reducing transfusion errors by up to 80%.
Closed-loop PVC recycling programs and bio-attributed PVC resins are emerging as viable paths to reduce the carbon footprint of medical flexible packaging without compromising performance.
Advanced multi-chamber PVC blood bag architectures allow simultaneous storage of separated blood components (plasma, platelets, RBCs) in a single integrated flexible package.
Industry 4.0 integration — including MES, ERP, and automated material handling — is transforming PVC blood bag production into a data-driven, zero-defect manufacturing paradigm.
Beyond transfusion medicine, PVC flexible packaging technology derived from blood bag manufacturing is reshaping multiple high-value industries.
The primary application: single-use PVC blood bags are used for whole blood collection (typically 450ml), component separation (plasma, platelets, cryoprecipitate), and bedside transfusion. Quad-pack and penta-pack configurations enable complete blood component processing from a single donation unit, maximizing resource efficiency in blood banks.
The same PVC flexible film technology underpins large-volume parenteral (LVP) bags for saline, glucose, and total parenteral nutrition (TPN). The flexibility of PVC allows complete emptying without air inlet, reducing contamination risk — a direct technology transfer from blood bag engineering to IV therapy.
PVC flexible pouches derived from blood bag film technology are used for peritoneal dialysis solutions, plasmapheresis, and specialty drug delivery systems. The material's chemical resistance and seal integrity make it ideal for aggressive pharmaceutical formulations requiring long-term stability.
Medical-grade PVC flexible packaging extends to enteral feeding bags (500ml–1500ml), urinary drainage bags (2000ml), and wound drainage systems. These applications demand the same biocompatibility, clarity, and seal reliability as blood bags, leveraging shared material and manufacturing platforms.
Specialized PVC formulations with enhanced cold flexibility are used for cryopreservation of stem cells, bone marrow, and cord blood. These bags must maintain structural integrity at −196°C (liquid nitrogen) while remaining transparent for visual inspection — a demanding performance frontier for PVC flexible packaging.
PVC flexible film technology from the medical sector is increasingly adopted in food-grade flexible packaging (retort pouches, vacuum bags), agricultural chemical packaging, and industrial fluid containment — where the proven biocompatibility and barrier properties of medical PVC translate directly into commercial value.
Complete realization from concept to market — Dahai Plastic assists customers worldwide in developing and manufacturing products for medical supplies, packaging, building materials, and toy supplies.
From medical supplies to industrial flexible packaging — our PVC solutions serve diverse high-performance application scenarios globally.
Jiangsu Dahai Plastics Co., Ltd. was founded in 1996, is a professional production of various types of PVC film and printing PVC film technology of private enterprises. We mainly produce super transparent film, ordinary transparent film, toy film, bath film, raincoat film, electrical tape film, cold film, non-stick film, decorative film, PEVA film, particles, tablecloth, shower curtain, urine bag.
The company has more than 20 production lines, more than 450 employees, of which 30% are technical management personnel, and has a sound management system. Covers an area of more than 120,000 square meters, annual output of more than 100,000 tons, annual sales of more than 1 billion. The company continues to introduce advanced production equipment and technology. The product quality reaches the international standard, the company's products not only sell well in the domestic market, but also exported to South America, Southeast Asia, Africa and other places.
The total registered capital of several projects under the company group is 40 million dollar, total assets reach 140 million dollar, floor area is more than 120,000 sqm, with 20 imported environmental protection production lines, with an annual production capacity of 150,000 tons. In year 2018, we achieved sales of 180 million dollar, of which exports earned 10 million US dollars. The products are sold to more than 400 cities in 12 provinces and regions across the country, the market share ranks first among private enterprises in the province, and the products are exported to more than 10 countries and regions. In view of the market development trend and the future development of the company, it is proposed to build an intelligent manufacturing project of new medical materials.
We possess laboratories accredited by China National Commission for Conformity Assessment (CNAS), which are equipped with many kinds of world advanced experimental equipment and physical and chemical testing-analysis instruments. In every experiment, in every test, even the slightest difference can be detected by our machines, which greatly guarantees the quality of our products.
DAHAI continues to invest resources, and we will work with university teams to develop products. Our technical department is constantly learning new technologies and combining them with our own situation, through which our ability to innovate is keeping improving.
World-class testing equipment for PVC film and medical packaging quality assurance.
All products meet international toy and packaging safety standards.
Compliant with EU RoHS and Model Toxics in Packaging (CONEG) legislation.
Active collaboration with academic institutions to drive material innovation.
We import all kinds of testing machines, such as universal testing machines, Agilent GC analyzers, gloss meters and cold-tolerance testing machines. Besides, we establish good cooperation with professional testing companies to meet customer's requirements. All of our products can meet the requirements of EN-71, ASTM-F-963, Model Toxics in Packaging Legislation (CONEG) and RoHS.
Make green materials, create a good and healthy life!
To become the domestic polymer material application industry leader, to build a world-class brand!
Independent innovation intelligent future! Team style: people-oriented safety first!
Integrity, pragmatic, efficient, win-win!
Tongzhou Huaming Plastic Co., Ltd. was established.
Tongzhou Huaming Plastics Co., Ltd. was changed to Jiangsu Dahai Plastics Co., LTD.
Nantong Runyang Plastic Co., Ltd. was established.
Dahai Real Estate Development Co., Ltd. was established.
Field E-commerce company is established.
Jiangyin Zhonglian Real Estate company was established.
Jiangyin Huayue Real Estate Development Co., Ltd. was established.
Jiangsu Houbang Industrial Co., LTD. was established.
Complete realization from concept to market — Dahai Plastic assists customers around the world in developing and manufacturing products for packaging, medical supplies, building materials, toy supplies etc.
Our dedicated sales and technical teams engage closely with customers to gather detailed specifications, discuss project goals, and identify any unique challenges.
Once the needs are confirmed, we move into the product proofing phase. During this stage, we create prototypes or samples based on the agreed-upon specifications.
After thorough evaluation and refinement, we finalize the sample that both parties agree upon. The confirmed sample serves as the benchmark for all subsequent production runs.
Our make-to-order approach allows us to tailor our production processes to meet individual client needs. Leveraging our flexible manufacturing capabilities.
Upon completion of production, each item undergoes a comprehensive finished inspection. Our quality assurance team employs advanced testing methods.
We actively seek feedback to continuously improve our services and adapt to evolving market demands. Through ongoing partnerships, we aim to be more than just a supplier.
Explore our full range of medical-grade and industrial PVC flexible packaging solutions — engineered for performance, safety, and global compliance.
