Impressions - October/November 2011 - (Page 62)

HANDS ON >> SCREEN PRINTING >> HANDS ON TECH TIPS HANDS ON >> HANDS ON For Screen Printers Only SCREEN PRINTING HANDS ON TECH TIPS HANDS ON Simplifying Simulated Process Printing To create a proper simulated process image, design for a black garment and make slight adjustments for prints on lighter shirts. Simulated process screen printing is simply the breakdown of an image that is made to look like it was printed using fourcolor process. The difference is that it does not use process colors and is not limited to a specific number of colors. A design usually is a raster image, meaning it is created or broken down in Adobe Photoshop (or a similar program) and is made up of pixels that are later output using halftones. Simulated process printing usually is associated with printing on black or darkcolored garments. It could and should be used for all colors because, unlike four-color process, it is very forgiving. And since many customers are not sure what color garments they want a job printed on, this allows for choices to be made without a problem if designed correctly. The term “designing correctly” means designing for a black garment. If you do this, you only have to add in the black when printing on other shirt colors. Should you design for light-colored garments, you’ll have to lay down a solid underlay to print the colors on. To design properly, design on a black background, not a white one. Here are a few of the design elements to consider: • Make sure the image has contrast by having light come from a single point other than straight forward. Exaggerate the black areas. • The shadow areas should have lots of black in them so the black of the garment and the design are integrated. • Your computer screen should be black (not white) when designing. This article addresses several ways an image can be used if designed properly for a dark garment. That simply means a lot of contrast and the ablity to print on a black garment without using black ink. For this job, I worked with John Magee of Airship Printing, Castle Rock, Colo. We started with a separated image produced by Great Dane Graphics, Mandeville, La., that is designed to print on all colors of garments. But we encountered a problem: To work on all colors, it required the use of seven colors. Because we only had a six-color press available, we had to make a few adjustments. We opened the image in Photoshop and took the green separation and added it to the blue and yellow separations so we would get green when we printed the image. Although the green would not match the color of the original green, in this instance it wouldn’t matter. And although we would be printing with opaque inks, they would blend and create a green anyway. STE P 1 62 First, image the seven-color art on the computer. This artwork is set up for use with an M&R Tri-Loc registration system. Once we eliminated the green separation, we printed out the separations using a 45 lpi, 61-degree angle and elliptical dot for all the colors. Impressions >> October/November 2011

Table of Contents for the Digital Edition of Impressions - October/November 2011

Impressions - October/November 2011
First Impressions
From the Show Director
Product Gallery
ISS Conference Program 2012: Designed for Success
Laser Etching on Performancewear
On the Move
It Pays to Take Shirt Design Online
The Digital Difference
For Screen Printers Only
Online Directory
Tech Tips
Business to Business
Ad Index

Impressions - October/November 2011