Printing plate
1, and websites: network composed of printing design is a minimum unit. Gravure outlets the different ways of making due, version roller on the site also reflects have differences: electric carved with nets into carving outlets, the change of the size of the network and depth has followed the change; Coating corrosion network with the change, only a net in dot size change; Laser version of the change of the different nets into outlets general displays in network depth.
2, the color of the light source object: color. Nature, most of the object itself is not a shimmering, such as print, flowers and plants, trees. They are the colors of the spectrum of the sun from the colored light to reflect or transmit the. In the nature of light color is red, green, blue, these 3 kinds of color of different combinations can form hundreds of colored light; Pigment primary colors is green and yellow, magenta, in theory, the three color pigment different proportions of mixing, can get all the color in nature.
3, hard blow and blow: gravure printing soft in the different scraper in printing outfit law the effect of is not of appearance. Hard blow off the support scraper blade is to point to a short, the effect contrast big, easy to wear version roller, to solve the page will have little effect not clean. Soft wind is refers to the scraper blade from a long distance support point, the effect is tonal gently, easy to produce HuiWu. For tablets of the part of the shallow network transfer will be to some.
Version roller transportation and keeping:
Version roller transportation to the protective measures, such as in the version roller surface layer of thick bag, avoid corrugated paper in the transport of collision and turbulence.
Version roller in printing to clean, above all after the residual ink in version roller will cause off chromium and plugging version. And then in the version roller coated with even on temporary, with quality of a material soft paper (also can use waste printed samples) will cover the, and store in a cool, dry place can.
Special attention should be paid to a bit, the place to stay away from acidic substances.
Gravure version roller maintenance guide
Gravure version roller surface of chromium layer in the meet acid, alkali etc corrosive liquid, gas or unqualified solvent, will quickly be corrosion, on the screen form small point, printing, printing film in the transfer out. This phenomenon in damp environment to occur, because the moisture in the air is very easy to absorb acidic or alkaline gas, and air and version roller surface in contact at any time. In the chromium layer has just been corrosion, if not refund chromium plating as soon as possible, can be very heavy in not long time to copper corrosion in layer, make version roller scrap, cause needless loss.
In order to effectively avoid above phenomenon, my company through various research, now offers a kind of save version roller method, for the use of reference:
1. In a YinCi finish, the version roller with solvent clean;
2. Use clean soft cloth to wipe, layout don't leave fingerprint (for fingerprint contains sweat corrosion ingredients);
3. Dip in with soft cloth take clean low volatile oil, light in version roller surface evenly with a layer of, careful not to use spent oil.