Printing knowledge - field printing shows maximum saturation

 


Printing knowledge - field printing shows maximum saturation 

 Four-color printing is printed with CMYK(cyan, magenta, yellow, black) four-color overprint that you need. In the popular point, that is, you can use these four different colors to add up to get the color you need. Field printing refers to 100% color, such as 100% black is field black, and printing a large area of color block on printed matter. 1 There are a lot of people in the field saturation in the printing product color saturation do not know how to deal with, it is easy to cause unnecessary loss, theoretically, is to give full play to the maximum field density of #offset #printing #ink to achieve the maximum saturation. Although 95% of the dot will increase to 100% after printing, this is different from the effect generated by 100% field printing. 95% of the dot only reaches the field in 95% dot area, while 5% of the dot area has ink, but the ink #density is thinner. 95% of the dot increases to 100% ink density not as thick and bright as 100% field density. According to the general offset ink color deviation, with gray characteristics, its optimal saturation configuration is: red =M95% Y85% green =Y95% C85% blue =C95% blue =C95% M80% Image offset printing in the field of printing to achieve maximum saturation,CMYK color value (file setting) should be set as a single channel 100% pure color (no dot, overlay), that is, c100, m100, y100, k100, overprint color to avoid the problem. 1. Monochromatic value (pure field, maximum saturation core) Cyan (C):C100, no other channel values (m0, y0, k0) Maguinon (M):M100, no other channel values (c0, y0, k0) Yellow (Y):Y100, no other channel values (c0, m0, k0) Black (K):K100, no other channel values (c0, m0, y0) Principle: single channel 100% can make ink printing in the purest state, avoid other color dilution, maximize its saturation. Two, overprint color (multi-color mixed field) Standard color value of overprint (considering saturation and printing feasibility) Red :M100+Y100(total ink volume 200%) Green :C100+Y100(total ink volume 200%) Blue :C100+M100(total ink volume 200%) Dark blue :C100+M100+K30(total ink volume 230%) Deep purple :C60+M100+K30(total ink volume 190%) Key limitation: the total ink volume is controlled within 240% to avoid ink accumulation, slow drying or adhesion. picture Iii. Matters needing attention in practice Avoid adding irrelevant channels: for example, when doing pure green field, do not add K or other colors, otherwise it will reduce the brightness. No dot replacement: the field color must be set as "100% solid base", and high dot percentage (e.g. 95%) cannot be used, otherwise the ink layer is insufficient. Overprint Settings: "overprint" (especially dark color) should be checked in the file to avoid leakage affecting saturation. Suitable substrate: the total amount of overprint ink of high blotting paper (such as newsprint) can be reduced by 10% to 20% to prevent ink from penetrating ash.

www.eufuho.com

Comments

Post a Comment

Popular posts from this blog

Printing knowledge - screen printing ink preparation and recycling method

Image
  Printing knowledge - screen printing ink preparation and recycling method In the process of screen printing, the first problem encountered before printing is the deployment of ink color, whether color real reproduction directly affects the product quality and market space share. To make customers satisfied, you first need to know how to improve the quality of ink by using ink color blending techniques. 1 screen printing ink to find a container to put ink to avoid waste (it is recommended to use a transparent disposable cup, easy to be easily poured into the right amount of ink (how much to pour) The ink preparation method is clear basic requirements: first determine the printing material (paper, plastic, metal, etc.), select the corresponding system of ink (such as screen printing plastic ink for plastic, high temperature curing ink for metal). With the basic color as the main body, a small amount of auxiliary color is added, and the amount of each amount is not more than 5% of t...
Read more

Analysis of the Causes of Pressure Faults in Inkjet Printers

Image
  Analysis of the Causes of Pressure Faults in# Inkjet Printers 1 The ink line speed is normal, but there is pressure loss or it is too high (1) Check if there are any additives in the additive bucket and replenish them. Check the viscosity of the #ink to determine if it has become thinner (check if the printed characters are too light). Otherwise, the entire machine should be cleaned. For machines that have not undergone regular maintenance, the #filter elements and filter screens must be replaced. (2) Check if the shape of the breakpoint is correct and adjust the breakpoint. (3) Check whether the electrode of the nozzle is clean and clean the #nozzle. 2 Pressure loss fault caused by #pump motor failure (1) Pump motor failure leads to power loss, resulting in total pressure loss and pressure fault display. (2) The motor is disconnected from the pump. At this time, although the motor is rotating, the gear at the front end of the pump does not rotate, resulting in total pressure los...
Read more