As quality standards in the textile industry continue to rise, customers are placing increasingly stringent requirements on fabric width, GSM, and batch consistency. Traditional quality control methods—based on manual sampling and offline weighing—often suffer from delayed feedback, limited accuracy, and significant batch variations. These limitations can result in quality deviations, costly rework, and customer complaints, creating major challenges for dyeing and finishing mills striving to deliver premium-quality products. To address these challenges, Hawk Vision, overseas brand of Hongda Intelligent Technology, developed the internationally leading HV-GM200 Online GSM Measurement System. This case study showcases the successful implementation at Lanxi Buyu Printing & Dyeing, demonstrating how the HV-GM200 helps manufacturers achieve precise GSM control through innovative technology.

Continuous Upgrading of Quality Standards Makes Traditional Control Methods Difficult to Meet High-End Production Requirements

Under the traditional production model, the industry generally adopts manual sample cutting and offline weighing for sampling inspection, which can only achieve post-production sampling verification and cannot monitor GSM fluctuations during the production process in real time. Once process fluctuations occur, they can easily cause batch GSM deviations, increasing fabric waste and rework costs while affecting delivery reputation and restricting enterprises from expanding into the high-end market. At the same time, most inspection equipment currently on the market only provides basic monitoring functions and cannot be linked with the production process for automatic correction, making it impossible to fundamentally solve GSM fluctuation problems.

In order to establish a standardized, refined, and intelligent GSM control system and improve product stability and customer satisfaction, Lanxi Buyu Printing & Dyeing conducted extensive research and comparison before finally selecting the industry-leading brand—Hongda Intelligent Technology's HV-GM200 Intelligent Online GSM Measurement System—to upgrade the GSM control process on its production line.

Real On-Site Application Feedback: Stable Accuracy Under Control, Significant Reduction in GSM-Related Customer Complaints

When talking about the actual results after the equipment was put into operation, Mr. Xu Xiaofeng, General Manager of Lanxi Buyu Printing & Dyeing, gave a highly positive practical evaluation: "Customers' requirements for fabric width and GSM are becoming higher and higher. We chose Hongda, the domestic industry leader. Now the GSM error is controlled within 1%, and customer feedback regarding GSM issues has decreased significantly."

After the system was put into operation, it changed the traditional control model of "post-production sampling and passive correction." Relying on its 24-hour uninterrupted online monitoring capability, the system can capture slight GSM fluctuations during the production process in real time. Combined with non-destructive measurement technology, it requires no fabric cutting and causes no fabric damage, truly realizing continuous monitoring throughout the entire production process with real-time data traceability.Stable millimeter-level measurement accuracy enables the enterprise to keep fabric GSM tolerance firmly within 1%, greatly improving batch consistency and significantly reducing customer feedback and quality issues caused by GSM deviations at the source.

Original Core Technology: Closed-Loop Automatic Control Throughout the Entire Process, Replacing Manual Machine Adjustment

Compared with traditional inspection equipment, Hongda Intelligent Technology's original, world-leading intelligent online GSM measurement technology has reconstructed the GSM control system of the printing and dyeing industry. Unlike ordinary inspection equipment on the market, it realizes an innovation in industry practice.

1. Continuous Online Monitoring Throughout the Entire Production Process

It breaks the traditional control logic of "sampling inspection after production is completed" by moving GSM control forward into the stenter production process. Fabric GSM data is collected 24 hours a day, production fluctuations are captured immediately, and defective batches are prevented at the source.

2. High-Precision Non-Destructive Measurement

The entire process adopts non-contact measurement without damaging finished fabrics, balancing measurement accuracy and production cost. It is suitable for continuous production of various types of fabrics, including knitted and woven fabrics.

3. Closed-Loop Automatic Correction Through System Integration

The system can be seamlessly connected with Hongda's self-developed Hawk Vision Density Detection Automatic Overfeed System, truly realizing an integrated production mode of "real-time monitoring, dynamic analysis, automatic correction, and simultaneous measurement and adjustment." During production, without manual machine adjustment, the system automatically corrects key process parameters such as overfeed, machine speed, and fabric width according to real-time GSM data, promptly compensating for GSM deviations caused by process fluctuations. It fundamentally solves industry pain points such as delayed manual adjustment, heavy dependence on operator experience, and poor consistency, greatly reducing manual workload while stabilizing process consistency.

The entire system is designed for long-term stable operation under the high-temperature and high-humidity conditions of printing and dyeing workshops. Its modular structure makes installation and commissioning simple, daily maintenance convenient, and adaptation to the upgrading of various stenter production lines easy.

Practical Application Demonstrates the Value of Technology, Empowering High-Quality Development of the Printing and Dyeing Industry

The successful application at Lanxi Buyu Printing & Dyeing fully proves that the Hongda Intelligent Online GSM Measurement System is not merely a measuring device, but a complete intelligent solution for reducing costs, improving quality, and ensuring stable delivery. Under the trend of increasingly competitive quality requirements and the upgrading of orders toward the high-end market, precise, closed-loop, and intelligent online measurement and control technology has become an essential solution for printing and dyeing enterprises to strengthen quality advantages, reduce production costs, and improve market competitiveness.

In the future, Changzhou Hongda Intelligent Technology Co., Ltd. will continue to focus on the intelligent printing and dyeing industry. With original core technologies and mature application solutions, it will help more printing and dyeing enterprises achieve refined production, intelligent process control, and high-end product quality, empowering the industry's green, low-carbon, and high-quality development.