Double color printing of books now are very common, a recent we the book also used this printing mode. For this and publishing company discussed the layout of the skills. At the same time also checked some double color printing of the material.
A few years ago everybody common double color printing is usually "black + red" or "black + blue". Simple for, it is will CMYK printing of one of two color extracted, because yellow, when used alone, identify degrees to read, so there is no limited "black + yellow" mix.
But a separate red and blue print color quite some dazzling, give people don't feel grade. With the special color printing cost reduction, double color printing have introduced with this approach, can use their required special color printing ink and black collocation, so the color becomes rich rise. At present we do a book is to use a "black + copy golden" approach, unified format with the cover.
In fact will double color printing simply defined as "black + special color" is not correct. As long as it is two kinds of printing ink mixing printing can be called double color printing. And that means we can use two kinds of special color collocation. This in many experimental pictures often used in processing. As if you have eaten as a child of the "double color ice cream", two kinds of different taste (color) mixed together, can have a variety of possible.
Of course, in printing also need to consider printing costs. The use of special color printing ink cost after all the ink with routine CMYK to expensive, PANTONE special color ink is a YinChang his mixture of ink prices high. Therefore, we must combine when the design cost and the final effects, the choice of appropriate way, take the cost of as much as possible, to good effect.