Use Photoshop or Corel Photo Paint (part of CorelDraw) to separate colors. If a printer needs say, a vibrant red, they'll need a bump screen to print that color. Limited color spectrum - printers will not be able to reproduce certain colors. Requires a deeper understanding of mesh selection and reproduction of halftone values. Limited garment color selection (white or light-colored garments). Spot color separation for dark garments how to#
Need to be knowledgeable on how to properly separate colors in the correct software programs.
Can be printed with plastisol or water-based inks. CMYK is implemented less because simulated printing is more dominant. For users skilled in CMYK file preparation, Photoshop, and screen creation, this is still a viable print process for light-colored garments. Using cyan, magenta, yellow and black ink, screen printers can print designs on white or light-colored garments. CMYK PROCESS (CYAN, MAGENTA, YELLOW, BLACK) WHAT IS IT?ĬMYK is the oldest, color reproduction, print method. When you use this method just make sure to lay black color over the layer be fore you print each layer as a "separation".Okay, so you’ve heard their names - CMYK, Spot Color, and Simulated Process - but what are they? What sets them apart from one another? What is the best use for each technique? Let’s go through them, one by one. But hey- when your in a pinch it can work so you can get the job done. This is a very simple and "crude" way to create your film positives for screen printing. One way is to separate each color to it's own layer in Photoshop and print your film positives. Spot color separation in Photoshop can be done a couple different ways. Halftones are another factor to take into consideration- a 35lpi can give your print a completely different look then a 55lpi print will. Your halftones can range from 35lpi to 65 lpi. I recommend using a RIP (raster image processor) to print halftones. In the pop up print dialog box select separations instead of letting the printer or Photoshop manage colors. When you have all the colors separated your ready to print out of Photoshop. Follow all the above steps to "pull" each color in your design to it's own spot color channel. A White Underbase channel should be set to an opacity of 85% - 90%. 
In the color box at the bottom of the pop up window you can change the color of the channel to your sampled color you selected.
Double click your new channel and change it from an Alpha Channel to a Spot Color Channel.At the bottom of the Channels Panel is a small icon, a rectangle with a circle in the middle, click that and your color is now Saved as a New Channel.After you have the amount of color you would like to pull/separate- select the invert box. Using the Fuzziness Slider you can select more or less of a particular color hue. The Eye Dropper Tool will pop up with a dialog box with a slider. Go to Select Learn how to do a basic spot color separation inside Photoshop for outputting film positives for screen printing t-shirts.Ĭolor Separations in Photoshop - Channel Separations
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