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With the advancement of industries, the application of bronze powder is becoming increasingly widespread, especially in gravure printing industries for paper products and plastic films. Bronze powder is primarily categorized by mesh size, catering to different applications. Today, our focus is on discussing how to choose bronze powder for gravure printing on paper products.
When selecting bronze powder for gravure printing on paper products, there are several factors to consider:
1. Particle size: The particle size of the bronze powder will determine the final appearance of the print. Smaller particle sizes will result in a smoother, more even metallic appearance, while larger particle sizes will create a more textured, glittery effect. Consider the desired effect and choose a copper gold powder with the appropriate particle size.
2. Coverage: The coverage of the bronze powder refers to how well it spreads and adheres to the paper surface. A powder with good coverage will provide a uniform and consistent metallic appearance. Check the coverage specifications of the bronze powder and ensure it is suitable for the paper product you are printing on.
3. Adhesion: The adhesion of the bronze powder is crucial to ensure it stays on the paper surface and does not rub off or flake away easily. Look for bronze powder that has good adhesion properties to ensure the print remains intact and durable.
4. Compatibility: Consider the compatibility of the bronze powder with the printing process and materials you are using. Some bronze powders may be more suitable for specific printing techniques or paper types. Consult with the supplier or manufacturer to ensure the powder is compatible with your specific requirements.
5. Color and finish: Bronze powders can vary in color and finish. Some may have a reddish or orange tint, while others may have a more yellow or pale gold appearance. Additionally, copper gold powders can have different levels of shine or luster, ranging from a matte finish to a high gloss. Consider the desired color and finish of the print and choose a bronze powder that matches your requirements.
6. Cost: Finally, consider the cost of the copper gold powder. Different powders may vary in price, so it is essential to balance the desired quality and effect with your budget.
By considering these factors, you can select the most suitable bronze powder for gravure printing on paper products, ensuring high-quality and visually appealing results.
As an experienced sales professional, what would my advice to clients in the gravure printing industry be？
Bronze powder varies in price depending on its particle size. In highly competitive markets where industries with less stringent requirements opt for ordinary paper products, most customers choose 800-mesh products. However, they face a dilemma: although the price is lower, the required quantity increases, consequently raising costs. Is there a solution? Let’s discuss it here together:
Generally, gravure printing is used for paper products. While customers may opt for 800-mesh copper gold powder due to its seemingly lower price, its coarser particle size affects coverage and brightness when the required quantity isn’t met. On the other hand, 1000-mesh gravure powder offers finer particles, requiring less quantity for excellent coverage and providing superior brightness and printing performance. Therefore, considering these factors, the cost-effectiveness of using 1000-mesh gravure powder is higher.
| Model | Mesh | Average Particle Size( µm) | Covering Power(cm²/g） |
| SPG061/SRG062 | 1000 | 5.5-6.5 | 9000 |
| SPG071/SRG072 | 800 | 7-12 | 4500 |
After communicating with the customer, they conducted tests using 1000-mesh gravure powder, resulting in a 20% reduction in the required quantity and remarkably beautiful printed products. Ultimately, they chose 1000-mesh gravure powder. Thus, in gravure printing, it’s advisable to select gravure bronze powder with finer particles.
By understanding the nuances of particle size and its impact on printing quality and costs, businesses can make informed decisions when selecting bronze powder for gravure printing, ensuring optimal results and cost efficiency in their production processes.
