Introduction
Chongqing Sinstar Packaging Machinery Co., Ltd. (重庆鑫仕达包装设备有限公司) is a Chongqing-based Chinese manufacturer specializing in solventless laminating machines and related flexible-packaging equipment for the plastics and packaging industries. Founded in 2005, the company combines research and development, production, sales, and after-sales service, and its stated product range includes solventless laminators, glue mixing machines, and mold temperature machines, with additional references to gravure printing, coating, slitting, bag-making, and inspection equipment in industry listings.
Sinstar is positioned within the broader converting-equipment segment of the plastics industry, where laminating systems are used to bond multilayer flexible packaging structures for food, pharmaceutical, industrial, and other applications. Company and exhibition materials describe it as a manufacturer with ISO 9001 certification, export capability, multiple patents, and a substantial installed base, while Chinese industry listings identify it as a “specialized, refined, distinctive, and innovative” enterprise.
History and Development
Sinstar was established in 2005 in Chongqing, with its operations centered in Rongchang District and associated industrial facilities in the city. Early company descriptions state that the firm began developing solventless laminators and glue mixing machines in 2006, indicating an early focus on equipment for adhesive-free lamination processes.
Over time, the company expanded from a single-process equipment supplier into a broader flexible-packaging machinery maker, with listings and company materials citing product families such as WRJ, WRJF, and S1L90, as well as later model designations including WRJ i9, WRJF i9, SIL90, WRJSL i5, WRJK i5, C180, E280, and S380. Public materials also describe substantial patent accumulation, including references to 98 national patents in one company profile and 200+ patents in another, reflecting an emphasis on process and machine-design innovation.
A notable recent milestone was the reported launch of a second factory in 2024, part of the company’s capacity expansion in Rongchang. Local government reporting in 2026 also described the company as resuming operations with a focus on order fulfillment, product-quality improvement, and international expansion, including plans to develop overseas sales in Europe and South America.
Business Operations and Segments
Sinstar is primarily a manufacturer rather than a trading intermediary, and several business listings describe it as engaged in the research, production, sales, and service of packaging machinery. Its core operations appear to be concentrated on equipment used in flexible packaging converting, especially solventless lamination for multilayer films and related substrate combinations.
Its reported business areas include:
- Solventless laminating machinery
- Glue mixing systems
- Coating and printing equipment
- Slitting and inspection machinery
- Bag-making and special-purpose packaging equipment
One industry listing states an annual production capacity of 300 sets, while another cites 200 units per year for solvent-free laminating machines; these figures are not fully consistent across sources but both indicate a mid-sized specialized manufacturer rather than a mass-volume generalist. The company also reports sales beyond China, with exhibition and website materials mentioning overseas markets and international customers.
Products and Technologies
Sinstar’s principal product category is the solventless laminating machine, used to bond printed films, foils, and other flexible substrates without solvent-based adhesives. This technology is relevant to packaging lines where performance requirements include bond strength, coating accuracy, safety, and reduced environmental emissions compared with solvent-borne systems.
Publicly described technologies and features include:
- WRJ, WRJF, and S1L90 series machines, presented as core model families.
- Triple-layer and multilayer lamination solutions, including references to three-layer aluminum-foil and flexible packaging applications.
- Process-control functions described in exhibition materials, such as:
- Veneer cavity memory system
- Error-free adhesive preparation
- Targeted coating-weight input
- Accurate veneer-weight detection
- Multiple mixing-ratio protection
- Voltage compensation
- Fast-cleaning systems
The company’s broader product scope, as listed in trade portals and company profiles, includes gravure printing machines, coating machines, slitting machines, bag-making machines, and inspection machines, indicating capability across several stages of flexible-packaging converting. One profile also notes the presence of personnel with backgrounds in mechanical, electrical, computer, automation-control, polymer, and industrial design disciplines, suggesting an interdisciplinary engineering base.
Applications and End Markets
Sinstar’s machines are used in the flexible packaging value chain, where laminated structures are manufactured for consumer and industrial packaging. Exhibition materials state that its equipment has been applied across a wide range of industries, including:
- Food packaging
- Pharmaceutical packaging
- Civil explosive packaging
- Sanitary packaging materials
- Waterproof materials
- Thermal insulation materials
- Insulation materials
These end markets reflect the importance of multilayer structure performance, barrier properties, and adhesion reliability. In practical terms, solventless lamination is especially relevant where processors seek reduced residual-solvent risk, lower emissions, and efficient adhesive use in high-throughput converting lines.
Global Presence and Market Position
Company and exhibition materials indicate that Sinstar has sold equipment in multiple overseas markets, with one source stating sales in 38 countries and another noting more than 2,000 machine installations worldwide. Additional materials mention international participation at packaging exhibitions and regional market outreach in Latin America, Southeast Asia, Korea, and Thailand.
The company’s market position is described differently across sources, but the common theme is that it is a specialized solventless-lamination supplier with a meaningful domestic footprint and growing international visibility. Chinaplas exhibitor information identifies the company as a manufacturer/exporter and notes repeated participation in the fair since 2016, indicating active engagement in the regional plastics and packaging machinery exhibition circuit.
Sustainability and Environmental Initiatives
Sinstar’s most direct environmental relevance lies in its focus on solventless lamination, a process category that typically reduces solvent-related emissions and the need for solvent recovery systems compared with conventional solvent-based laminating processes. This is significant within the plastics and packaging industry, where converters increasingly face pressure to improve process efficiency and environmental performance.
The company’s public materials do not provide detailed emissions, energy, or lifecycle data. However, its process positioning aligns with broader packaging-industry efforts to reduce volatile-organic-compound exposure and improve manufacturing efficiency through cleaner adhesive technologies. The available sources do not support stronger claims about circularity, recycling, or quantified carbon reduction.
Financial Performance and Economic Impact
No audited financial statements were identified in the provided sources, so revenue, profit, and export-value figures cannot be stated reliably. What is visible is a company that contributes economically through equipment manufacturing, skilled technical employment, and export-oriented machinery production in Chongqing and Rongchang District.
The company’s reported patent activity, multiple product families, and second-factory investment suggest continued capital and engineering investment. Local-government reporting in 2026 also framed the company as part of the district’s industrial output and order fulfillment base, implying relevance to regional manufacturing activity.
Leadership and Corporate Governance
Public sources identify the company’s legal representative and management contacts in trade listings, but do not provide a full corporate governance profile. The company is repeatedly described as having a dedicated technical workforce and interdisciplinary engineering staff, indicating a management model oriented around equipment development and industrial execution.
One local report quotes the general manager on sales strategy, product-quality improvement, safety management, and export expansion, suggesting an operational emphasis on production discipline and market development. No verified board structure or formal governance disclosures were found in the supplied sources.
Innovations and Future Outlook
Sinstar’s innovation strategy appears to center on machine automation, adhesive-process control, and model refinement for solventless laminating lines. The repeated references to patents, model updates, and process-control functions indicate a business model based on incremental engineering improvement rather than commodity machinery sales alone.
Recent reporting suggests several forward-looking priorities:
- International market expansion, especially in Europe and South America.
- Capacity growth through factory expansion.
- Product-led growth using the company’s “flexographic laminator plus” and other core equipment lines as market entry platforms.
- Continued participation in major trade fairs to support customer acquisition and brand visibility.
In the current plastics-equipment landscape, Sinstar’s outlook is tied to demand for high-performance flexible packaging, cleaner converting processes, and reliable mid- to high-end lamination systems.
References
- •
CPS+ eMarketplace. (n.d.). CHONGQING SINSTAR PACKAGING MACHINERY CO., LTD.CHONGQING SINSTAR PACKAGING MACHINERY CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1000413Link