What are the sleeve technologies?
What is Sleeve Technology? Today's Biyin Bazaar lists the commonly used sleeve techniques for your learning and reference. The sleeve is a quick plate change system. The printing plate is pre-mounted on the sleeve, or the plate is made directly on the sleeve, and then printed directly on the machine after the installation on the air brace roller, instead of loading the printing plate on the traditional plate roller. Using an air brace roller with the same diameter of the L roller surface, these sleeves with the same inner diameter and different wall thicknesses are installed to change the printing perimeter, which has the advantages of high flexibility and easy plate mounting.
(1) Coated sleeve
This is the most basic type of plate sleeve, made of rubber, which is commonly used to apply inks, adhesives, clear varnishes, and primers, and can also be used to print continuous streaks. Depending on the type of rubber used in the sleeve, the appropriate type of ink can be selected, such as water-based inks or UV inks. The most commonly used coating sleeves have an inner diameter of 3 inches and an outer diameter of 3.5 inches.
(2) Laser engraving rubber sleeve technology
Laser engraving rubber sleeve technology is to engrave graphics and text directly on the rubber sleeve, and print directly through the sleeve without plate binding. The sleeve can be reused and can also be recycled. The graphics are directly ablated by a laser beam controlled by the graphic signal, eliminating the need for black film cleaning, development, and the use of film. In addition, the sleeve is not deformed during engraving.
The laser-engraved rubber sleeve is seamless, so any continuous background pattern, stripes, and very small fine text can be designed. In addition, because the sleeve is directly digitally engraved, it has a high register accuracy when multi-color printing, which greatly reduces the scrap rate during the printing test machine and calibrated register.
The surface tension of the laser-engraved rubber sleeve varies from 23 to 32 mN/m. In the case of fine dot printing, you can choose a sleeve with a lower surface tension, and if you are printing solid color blocks, you can choose a sleeve with a higher surface tension. In addition to the surface tension, the parameters of the sleeve also include surface hardness and chemical composition, and the printing converter should choose the ink that matches it according to the performance of the sleeve, such as solvent-based ink, water-based ink, UV ink, offset ink, embossing ink or flexo ink, etc.
(3) Seamless thin sleeve technology
This thin sleeve in combination with a compressible liner sleeve guarantees a very high print quality, making it possible to print lines and mesh images in a single flexographic print with a very high print quality, perfectly reproducing all layers and tones, from highlights to ground.
The above is a classification of sleeve technology, has it solved the question in your mind? If you want to know more about print production skills, you can go to this website to learn more.