The Application of Bronze Granule in Gravure Printing Ink

What Is Gravure Printing Ink?

In gravure printing, the types of inks used mainly include the following:

1.Solvent-based Inks: These inks have pigments dispersed in solvents, suitable for printing on plastic films and non-absorbent materials. Solvent-based inks dry quickly due to the rapid evaporation of solvents, making them suitable for high-speed printing.
2.Water-based Inks: Inks that use water as a solvent, environmentally friendly and safe, often used for printing on packaging materials like paper and cardboard. Water-based inks meet environmental standards but dry slower compared to other types.
3.UV Inks: These inks cure through exposure to ultraviolet light and are suitable for a variety of materials, including plastics, metals, and paper. UV inks dry quickly, have strong adhesion to materials, and produce vibrant colors.
4.High-viscosity Inks: A type of ink specific to gravure printing, characterized by high viscosity, which helps maintain excellent image and text transfer during printing.

These inks each have their characteristics and suitable applications, and print shops select the appropriate type based on factors such as the printing material, printing.

What Is Bronze Granule?

Bronze Granule has ideal covering power and metallic feeling, suitable for gravure gold ink. Bronze Granule is processed from copper bronze powder, through a special process of coating the surface of copper and gold powder, so that it has better affinity and expressive power in aqueous solvents, and it is suitable for aqueous acrylic resin and other corresponding aqueous ink systems, and it can realise dust-free operation.

What Are The Factors To Consider When Choosing Bronze Granule In Gravure Printing Ink?

Firstly, when selecting bronze granule, it’s important to consider the specific requirements and desired effects of intaglio printing. Different products may require different effects; for example, some products may need a bright and eye-catching metallic gloss, while others may be better suited for a subtle metallic texture.

Secondly, the mesh size of the chosen bronze granule needs to be taken into account. A higher mesh size indicates finer particles and results in a more delicate metallic effect, suitable for intricate patterns or high-quality print products. Lower mesh size bronze granule are more suitable for general printing needs, such as standard packaging boxes or promotional materials.

Additionally, the stability and durability of the chosen bronze granule should also be considered. The stability of the bronze granule directly affects the consistency and quality of the printing results.

Similarly, durability is an important factor in assessing the quality of bronze granule, ensuring that the printed products maintain a good appearance for an extended period.

Which Bronze Granule Is Better To Choose In Gravure Printing Ink?

Because of the different mesh sizes, the prices of bronze granule vary. Due to fierce market competition, most customers in industries with low requirements for ordinary paper products choose 800-mesh products. However, customers face a problem: although the price is not high, the amount added is substantial, directly increasing costs. How can this issue be resolved?

Generally, intaglio printing technology is used for paper products. Customers using 800-mesh bronze granule may appear to have low prices, but the particle size is coarse. If the amount added is not sufficient, it will directly affect coverage and brightness. However, 1000-mesh bronze granule is different. Because of its fine particle size, it requires less to achieve excellent coverage. Moreover, the brightness and printing performance of the intaglio process-produced bronze granule are excellent. Therefore, in a comprehensive comparison, products made with 1000-mesh bronze granule also offer higher cost performance.

After communicating with the customer, they conducted tests. By reducing the amount of 1000-mesh intaglio powder by 20%, the printed products were exceptionally beautiful. Ultimately, they chose to use 1000-mesh bronze granule. Therefore, in intaglio printing, it is recommended that everyone choose intaglio bronze granule with finer particle sizes. If you have any questions about bronze granule, please feel free to contact us！