Offset label printing requires setting up printing equipment to produce the desired result. This technique ensures consistent quality throughout print runs. The first and last sheets of a print run are supposed to be the same. If the offset printer is skilled, he or she can execute follow-up print runs with consistent results. Previously, film generation was necessary to produce the perfect print. However, most offset printers now use computer-to-plate technology, which has increased the speed of the label maker's process without sacrificing quality.
Presses
Whether you need to print labels, t-shirts, or business cards, there are several types of presses available for the task. Offset label printing presses are often used for flexible packaging, and Flexography is an option for both absorbent and non-absorbent materials. These presses can achieve high-speed production, and some can even perform multiple converting options with one pass operation. Flexographic printing presses have the added advantage of less training and cost.
Inks
There are various types of inks used in offset label printing. The "Tempo" family of printing inks is designed for conventional offset applications and impresses with their outstanding technical printing performance, durability, and user-friendliness. These inks are available for both paper and top-coated plastic labels. In addition, they are available in a variety of colors to suit the needs of different industries.
Sheet Size
If you need a large quantity of labels printed, consider getting a larger label sheet size. These can be as much as two times the size of a single letter size sheet. They can also print up to 160 barcode labels at a time, which makes them ideal for bulk label printing. Here are some important tips for choosing the right label size. And remember: you should always specify the sheet size of the project in terms of width.
Plate Cylinder
Offset label printing starts with the Plate cylinder. The Plate cylinder is the first roller in the printing press, and it holds a thin aluminum or plastic printing plate. These plates are specially treated so that certain areas attract ink, while others repel it. The plates are then rolled across the press, contacting rollers that distribute ink and water onto the printing plate. Each print job requires a different type of Plate cylinder.
Laser Engraving
Laser engraving is a cost-effective and permanent solution to many label printing problems. Laser engraving can be used to mark parts of vehicles, signs, and other items. By putting a unique identifier on each part, manufacturers can ensure that their products will meet the highest standards of quality. Earlier, marking parts with labels and printing was popular, but today laser engraving is the ideal solution. It saves money and time by eliminating the need for multiple stages of the plate-making process.
Blanket Skip Distance
Offset label printing involves adjusting the blanket skip distance. Typically, the offset blanket is moved at a distance of about 100 microns. To determine the blanket skip distance, the cylinder is moved along its axis of rotation 24. A micrometer is a measuring device used to measure the distance between a surface of an offset blanket and the cylinder. Every good pressman owns at least one micrometer.
Corrections to the Press
Several factors must be checked during the process of making corrections to the offset label printing press. First of all, the label gap must be fed to the same location on the printer as when the job starts. Second, the label perforation must be checked to ensure that the desired label position is produced. Finally, the start adjust must be corrected. If any of the above two steps is not completed, the label will not print properly and will be rejected.