What is rotogravure cylinder?
Rotogravure (or gravure for short) is a type of intaglio printing process, which involves engraving the image onto an image carrier. In gravure printing, the image is engraved onto a cylinder because, like offset printing and flexography, it uses a rotary printing press.
What is the thickness of engravable copper layer on gravure cylinder?
For the majority of applications, the copper coating thickness ranges from 150 μm to 2 mm. Copper or chromium coatings should be deposited within given tolerances for cost effectiveness.
How is rotogravure cylinder made?
manufacturing rotogravure cylinders with a cylinder base made of aluminum. The method involves the coating of the cylinder surface with high velocity spraying, the cop- per plating in an appropriate solution, the engraving of the cylinder, and the hardening of the cylinder by chro- mium plating.
What is the difference between gravure and rotogravure?
The rotogravure printing process (commonly shortened to gravure) is a method of intaglio printing. Gravure printing works by applying ink to a substrate with the use of a metal plate that is typically mounted onto a cylinder. This plate is often made of copper or chrome.
What type of ink is used for rotogravure printing?
A high quality non-lamination ink, Briteflex is ideal for twist wrap packaging and general applications. Rotogravure ink or Liquid Ink and rotogravure printing inks from DIC India are known for their Printing speed, colour consistency and defect-free printing on the Rotogravure Printing machines.
What is flexographic machine?
6 Colour Flexo Printing Machine with Sheet Cutting Machine are the result of experience of more than two decades. These machines are provided with “Anilox” Rolls duly engraved hard chrome plated to facilitate long life and uniform transfer of link resulting in sharp & glossy printing impressions.
How is a rotogravure cylinder engraved?
The engraving of rotogravure cylinders was initially developed in the last quarter of the nineteenth century and the method of image photo transfer consisted of first exposing a carbon tissue covered with light-sensitive gelatin to UV light passed through a diapositive of the image.
What is rotogravure printing technology?
Rotogravure printing technology dates back to the early 19th century, but became more popular in the 20th century, as newspapers adopted the technology. The term rotogravure evolved as newspapers moved from flat printing plates to the cylinders used in gravure printing today.
What is a rotogravure sleeve?
The term rotogravure evolved as newspapers moved from flat printing plates to the cylinders used in gravure printing today. Gravure sleeves further modernize the process. ROTHTEC® manufactures and engraves both gravure cylinders and gravure sleeves.
What is a gravure cylinder?
The gravure cylinder is actually a steel roller that has an electro-deposition of copper on its surface. The design is engraved or etched on the copper surface which is then chromium-plated to reduce cylinder wear and to enhance ink transfer.