Views: 0 Author: Eva Publish Time: 2025-06-06 Origin: GUANGDONG YINGHUI NEW MATERIAL TECHNOLOGY CO., LTD.
In the label printing industry, the drying process has always been the core bottleneck restricting production efficiency and quality. Traditional drying equipment generally has three major pain points:
Relying on a single hot air circulation or ultraviolet irradiation, the drying time is as long as 15-30 minutes, which cannot meet the requirements of high-speed printing lines.
The power of traditional equipment is generally over 50kW, with a unit energy consumption of 4.2-5.8kJ/g, resulting in high annual operating costs.
Uneven air distribution leads to label edge curling and insufficient ink adhesion, with a defect rate as high as 8%-12%.
In the global offset drying machine market, international giants such as Germany's Heidelberg dominate, but domestic enterprises still rely on imports in the high-end equipment field. Against this backdrop, Guangdong Yinghui New Materials Technology Co., Ltd. has launched the "Label Paper Drying Device" (Patent No.: 202221751396.X), which has completely redefined the industry's technical standards through disruptive design.
This device adopts a three-in-one technical architecture of airflow disturbance + intelligent temperature control + energy-saving circulation, achieving a dual revolution in efficiency and energy:
Innovative multi-level disturbance mechanism: Through the nested design of fixed and rotating frames, a spiral airflow path is formed, increasing the contact area between hot air and the label surface by 300% and reducing the drying time to 5-8 minutes.
The air volume adjustment mechanism integrates a pressure sensor, which can automatically match the optimal wind speed (1.2-3.5m/s) based on the label material (paper, PET, PP), avoiding the over-drying or energy waste caused by the "one-size-fits-all" approach of traditional equipment.
Introduces a dual-loop PID control: Feedforward control is based on the preset temperature curve according to ink characteristics, and feedback control is achieved through real-time correction by infrared sensors, with temperature fluctuations controlled within ±1.5℃, ensuring uniform ink curing.
Breakthrough use of heat transfer oil conduction technology: Filling the drying box with a high specific heat capacity heat transfer medium, the efficiency of converting electrical energy to thermal energy is increased to 92%, saving over 40% energy compared to traditional electric heating tubes.
Designs a waste heat recovery duct: The wet hot air is preheated by a heat exchanger to the fresh air, with a heat recovery rate of 65%. Combined with a variable frequency fan (IE4 energy efficiency level), the comprehensive energy consumption is reduced to 2.1kJ/g, a 62% reduction compared to industry standards.
The equipment supports intermittent power supply mode: When there is a gap in label transportation, the system automatically switches to standby mode, with standby power consumption below 50W, saving over 150,000 yuan in electricity costs annually (based on 16 hours of operation per day).
Third-party test reports show that this device demonstrates overwhelming advantages in actual production:
Processing speed reaches 80m/min, 2.5 times that of traditional equipment, seamlessly integrating with high-speed rotary printing machines.
Ink adhesion increases to 5N/cm (ASTM D3359 standard), edge curling is less than 0.3mm, and the defect rate drops below 1.2%.
VOCs emissions are below 15mg/m³ (GB 37822-2019 standard), passing EU CE certification and China's energy-saving product certification, reducing carbon emissions by 18 tons per year per unit.
A case study from a daily chemical enterprise shows that this device increased label production capacity from 80,000 per day to 200,000 per day, reducing the comprehensive production cost by 28% and shortening the investment payback period to 14 months.
This patent has formed a technological moat through 23 core technical points, including the fluid mechanics simulation design of the turbulence mechanism, the neural network training of the intelligent temperature control algorithm, and the optimization of the heat exchange efficiency of the circulation system. It has been adopted by 12 leading enterprises in the industry.
Its technical indicators have been included in the "Energy Efficiency Evaluation Method for Printing Machinery Ink Drying and Curing Devices" (GB/T 44685-2024), becoming the first industry energy efficiency standard led by a private enterprise in China, breaking the long-term monopoly of international brands.
This device has driven the transformation of label printing towards high speed, intelligence, and greenness, indirectly promoting technological leaps in related industries such as ink formulas (low-migration UV ink) and substrate research and development (degradable BOPP film), forming a cluster effect of a thousand billion yuan.
Guangdong Yinghui is extending this technology towards Industry 4.0:
Real-time monitoring of equipment status through 5G modules, and predictive maintenance by AI algorithms reduces downtime by 70%.
Integration into the factory microgrid, automatically adjusting operation strategies based on peak and off-peak electricity prices, reducing the comprehensive energy cost by another 15%.
Developing customized modules for special scenarios such as electronic labels and medical labels, with low-temperature resistance (-40℃) and high-temperature resistance (180℃), increasing market coverage to over 90%.
The "Label Paper Drying Device" of Guangdong Yinghui is not only an industrial equipment, but also a milestone for China's manufacturing industry to shift from "catching up" to "taking the lead". Its technological innovation not only addresses the pain points of the industry, but also promotes the green transformation of the entire industrial chain through an energy efficiency revolution. With the deepening of the "Made in China 2025" strategy, this "defining standards through technology" model will become the core paradigm for Chinese enterprises to participate in global competition. In this dual revolution of efficiency and energy, Guangdong Yinghui has written a new height of value for "Made in China" with its patents.
