The impact of poor rheological properties of printing gold paste on printing accuracy and corresponding strategies

In industries such as electronic manufacturing, thin-film switches, and flexible circuit boards, the rheological properties of printed gold paste directly affect printing accuracy and product quality. Rheological properties, including viscosity, flowability, thixotropy, etc., are key indicators for evaluating the suitability of gold paste printing. When the rheological properties of the printing gold paste are poor, it will significantly affect the printing accuracy, leading to problems such as unclear lines, uneven thickness, and poor adhesion. This article will be presented by Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand YB8107 Printing Gold PasteFor example, explore the impact of poor rheological properties on printing accuracy and corresponding strategies, and compare and analyze them with experimental data.

1、 The impact of poor rheological properties on printing accuracy

1. Decreased line clarity: When the viscosity of the gold paste is too high or the fluidity is poor, the edges of the printed lines are prone to blur, resulting in a decrease in clarity. Experimental data shows that using YB8107 gold paste with viscosity exceeding the recommended range (such as 10%) for printing increases the blurriness of line edges by about 20%, seriously affecting printing accuracy.

2. Uneven thickness: Unstable rheological properties can lead to uneven distribution of gold paste during the printing process, resulting in thickness differences. Experiments have shown that under the same printing conditions, using gold paste with poor rheological properties (such as poor thixotropy), the standard deviation of the printing layer thickness can reach 0.5 μ m or more, while the optimized gold paste standard deviation is controlled within 0.2 μ m.

3. Weakened adhesion: The adhesion between the gold paste and the substrate is significantly affected by rheological properties. Excessive or insufficient viscosity can lead to a decrease in adhesion, especially in high temperature or humid environments.Research Platinum Brand YB8107 Gold PasteBefore optimizing the rheological properties, the adhesion test results showed a decrease of about 15% in peel strength.

2、 Response strategy

1. Optimize the formula of gold paste: By adjusting the proportion of solvents, thickeners, surfactants and other components in the gold paste, improve its rheological properties.Advanced Institute (Shenzhen) Technology Co., LtdDuring the research and development of YB8107 gold paste, after multiple formula adjustments and experimental verifications, the optimal composition ratio was ultimately determined, resulting in ideal viscosity, flowability, and thixotropy of the gold paste.

2. Controlling printing process parameters: Reasonable printing speed, pressure, and temperature are crucial for the stability of the rheological properties of the margin paste. Experimental data comparison shows that controlling the printing speed at 20-30mm/s, maintaining the temperature at 25 ± 2 ℃, and adjusting the printing pressure appropriately can significantly improve printing accuracy.

3. Use auxiliary equipment: Introduce advanced printing auxiliary equipment, such as viscosity online monitoring system, temperature control device, etc., to monitor and adjust the rheological properties and printing conditions of the gold paste in real time, ensuring the stability and consistency of the printing process.

4. Regular maintenance and upkeep: Regularly maintain and upkeep printing equipment to ensure the cleanliness and integrity of printing screens, scrapers, and other components, and to avoid a decrease in printing accuracy caused by equipment problems.

3、 Comparison of experimental data

From the above experimental data comparison, it can be seen that optimizing the rheological properties of gold paste has a significant effect on improving printing accuracy. Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand YB8107 Printing Gold PasteSignificant achievements have been made in formula optimization and process control, providing high-quality printing solutions for industries such as electronic manufacturing.

4、 Conclusion

The rheological properties of printing gold paste are one of the key factors affecting printing accuracy. By optimizing the formula of gold paste, controlling printing process parameters, using auxiliary equipment, and regular maintenance and upkeep measures, the rheological stability of gold paste can be effectively improved, thereby enhancing printing accuracy and product quality. Advanced Institute (Shenzhen) Technology Co., Ltd. has achieved significant results in optimizing the rheological properties of YB8107 printing gold paste, setting a benchmark for the industry.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.