Method for the preparation of lithographic printing plates

This invention describes a method to create printing plates directly from a computer using an inkjet printer. It works by first applying a very thin, specialized chemical coating to a printing surface. Then, a unique liquid 'ink' (marking fluid) is jetted onto this coated surface by an inkjet printer to form the image, which can then be used for traditional offset lithographic printing.

Why it matters: Since 2001, inkjet print head technology has seen substantial improvements in precision, speed, and the ability to handle diverse fluid properties. These advancements could make the precise application of the specialized marking fluid and the very thin surfactant coating, as described, significantly more reliable and effective today.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedCustom chemicals, inkjet system, precise coating application.

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