There are three basic techniques for identifying where a spot color will be applied: You can also re-open the spot color options to change the setting by double-clicking the spot channel in the Channels palette. The Solidity field is previewed live in the image (if you’re creating the spot channel from a selection), so you can experiment with various settings before closing the dialog box. Solidity has no effect when the spot channel is the only visible channel. Rather, it simply reduces the opacity of the spot color areas. (Lesser tints of the ink, identified in the channel by gray values under 100%, will be proportionately reduced in opacity.) Setting the solidity to 0%, however, does not make the spot color transparent. When set to 100% solidity, the spot color will be completely opaque on screen in areas where it will be printed at 100% ink density. Solidity refers to how the spot channel will be viewed on screen – it has no effect on printing at all. The name of the color selected is automatically updated in the New Spot Channel dialog box, as is the swatch. Spot colors are typically selected from a Custom book in the Color Picker. In the dialog box, click the color swatch to open the Color Picker. The command opens the New Spot Channel dialog box. With no active select, an empty channel is created. If you have an active selection in the image, the spot channel will automatically be created from it.
Spot channels can also be used to identify areas of an image over which a varnish will be applied.Ī spot channel is added to the image – and to the Channels palette – using the Channels palette menu command New Spot Channel. Neon and metallic colors can be added with spot channels. Another typical use is extending the color range of an image beyond those that can be produced using the CMYK inks. If you need to ensure an exact match for a corporate logo, you may want to use a spot color. This usually increases the cost of the print job. A separate printing plate is generated, and an additional run through the press is required. The location in the image where the ink should be applied is stored in the spot channel. Spot color channels are designed to provide a channel for additional inks to be used in commercial printing. Or they can reduce your print costs – think about using black and a single spot color for some projects.
They can add a bunch to your printing bill. Spot colors can be used with CMYK or Multichannel documents intended for print to add additional colors, create “bump plates,” and to control varnishes.
0 kommentar(er)
