Difference between Offset Printing and Offset Lithography
| Offset Printing | Offset Lithography |
|---|---|
| A widely-used printing technique where the inked image is transferred (or “offset”) from a plate to a rubber blanket, then to the printing surface. | Specifically refers to offset printing that uses a lithographic process, which involves the repulsion of oil and water to transfer an image onto a flat surface. |
| A general term used to describe the offset method, regardless of the specific process or materials used. | Typically emphasizes the lithographic technique, highlighting the chemical process of image transfer. |
| Can use various types of plates, including polymer, metal, or others depending on the application. | Often implies the use of a lithographic plate, traditionally made from aluminum. |
| The image can be created using various photographic or digital methods. | The image creation involves a process that depends on the immiscibility of oil and water. |
| More commonly referred to in commercial and industrial printing contexts, covering a broad range of applications. | More commonly referenced in artistic contexts or when detailing the specific chemistry involved in the printing process. |
| Used for a variety of printing needs including books, newspapers, and packaging. | Also used broadly, but may be specifically mentioned in contexts where the material of the plate and the chemical process are important, such as in high-quality art prints. |
What is offset printing? How it works
Offset Printing: Offset printing, also known as offset lithography, is a widely used printing technique where images on metal plates are transferred to rubber blankets or rollers before being printed onto the media. The media, typically paper, does not directly touch the metal plates, which helps extend the plates’ lifespan. The flexible rubber easily adapts to the surface of the media, making it possible to print on varied textures such as canvas, cloth, or wood. The primary benefit of offset printing is its consistent high-quality images. This method is versatile, suitable for small, medium, or large printing jobs.