La función principal de la mantilla de impresión es transferir tinta desde la plancha de impresión al sustrato. En el proceso de impresión litográfica indirecta, la mantilla actúa como una cubierta para el cilindro de transferencia en la prensa de impresión offset, y la tinta se transfiere a través de la estructura compuesta compuesta por su revestimiento de caucho y un sustrato (como una tela).
This process is an indispensable part of offset printing technology, because the performance of the blanket directly affects the quality of the printed product, including the structure of the dots, the uniformity of the ink, the glossiness of the printed product, the accuracy of the overprint, and the service life of the printing plate.
Printing rubber blanket makes the blanket play a vital role in the printing process, ensuring the quality and consistency of the printed product. In addition, the blanket has other auxiliary functions, such as waterproof and solvent-proof properties, which can reduce the swelling caused by solvent penetration, thereby extending the service life.
At the same time, the blanket also has good impact resistance and paper peeling performance, which can reduce paper edge marks and reduce costs. These characteristics make the blanket not only widely used in traditional printing, but also play an important role in modern printing technologies, such as UV printing and metal printing.
Specifically, rubber blanket plays the following key roles in printing:
- Ink transfer: Rubber blanket is used for ink transfer during printing. It has effective pressure resistance, fast recovery, strong viscosity, and does not leave any adhesive. Its smooth surface and fabric layer make the ink transfer more stable regardless of dot or full version.
- Compensate for the uneven surface of the substrate: Rubber blanket can well compensate for the uneven surface of the substrate and fully transfer the ink.
- Pressure control: Correct use of rubber blanket is a key point in printing pressure control and has an important impact on ensuring printing quality.
- Reduce paper edge marks: Some high-stability rubber blankets such as Vulcan Master have excellent paper peeling performance, which can reduce paper edge marks and reduce costs.
- Adapt to different printing needs: Rubber blankets have different types and structures, suitable for different printing needs, such as commercial and packaging offset printing, UV printing, metal printing, etc.
- Environmental protection: La producción moderna de mantillas de caucho reduce el uso de solventes químicos, mejora la velocidad y la eficiencia de la impresión y reduce el impacto ambiental.
Las mantillas de impresión desempeñan un papel indispensable en el proceso de impresión, no solo garantizando la calidad de los productos impresos, sino que también contribuyen de manera importante a la estabilidad y la protección ambiental del proceso de impresión.