TIPS & TRICKS: THE BLANKET: KEY TO GOOD OFFSET PRINTING

 The blanket is a real all-rounder in offset printing. It transfers text and graphic elements exactly from the printing plate to printing stock, which is an incredibly demanding task when you take a closer look at what all that involves.

The blanket must be able to take on colour as well as it dispenses it. It also has to distribute dampening solution evenly, and irregularities in thickness in the printing stock have to be evened out. The blanket also has to serve as a kind of "damping system." Specific material characteristics determine how well the printed material releases from the blanket (quick release effect), how high quality the replication is in terms of colour and tone, and how strongly the printed image is affected by mechanical strain.

Blankets are made up of multiple layers, and the company subjected these blankets to extensive testing. These tests focused on surface properties (for example roughness, chemical composition) as well as "damping qualities" (compressibility). In this way, customers can be sure that most blankets provide the best print quality and run stability. Specific material characteristics are decisive in how well the printed material releases from the blanket (quick-release effect) and how strongly the printed image is affected by mechanical strain.

To make sure the blankets perform well, you should store them in their original packaging and upright. The blankets should not be stored for longer than 24 months, since the material can harden and become brittle otherwise. It is advisable to clean the blankets with water before using them for the first time and then later only use approved washing agents in order not to damage the material properties.

If irregularities appear in the printed image, it may be due to the wrong processing or packing. For example, if a run size is too large on plate cylinders or blanket cylinders, slurring or ghosts may result. A good packing height for blanket cylinders is about 0.002 inches (0.05 millimetres) above the bearer ring. It is also advisable to affix blankets exactly using torque wrenches.

When you print a full-surface image without a water wash, you get the clearest results. Excessive dot gain is a sign of flawed processing or packing height as well as too much pressure. Register problems can also result from interactions between blanket, ink and printing stock. Printing blankets with good quick-release effects minimize the adhesive strength and thus the negative effects on the register.

If you are looking for a printing press, Ryobi Offset 2800 series is a very good choice with an excellent price that will fulfill your business needs. This press has all the features needed for offset printing. To know more about Ryobi offset 2800 and Ryobi 3302m visit us now.

Location: Carmel-By-The-Sea, CA 93921, USA

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