What does color printing mean by six colors and seven colors?

Six-color and seven-color color printing means that the printing factory adopts six-color printing or seven-color printing when printing promotional materials. But what I want to say is that there is no so-called seven-color printing at present, and it is usually four-color, six-color and eight-color printing.

1, six-color printing

Six-color printing is a printing method using unique six-color ink developed by Pantone Company from 65438 to 0995. Except for black and blue, all other colors of ink contain fluorescent pigments, which are characterized by very bright colors. It is a printing method to improve the four-color printing effect and add two spot colors for full-color reproduction.

There are two modes of six-color printing: one is hexagonal spot color, and orange and green colors are added to four-color printing; Another six-color printing does not add new colors, but uses lighter or darker cyan and magenta. ?

2. Four-color printing

We usually use the four-color printing method, that is, we use the subtractive method to print the three primary colors (yellow, magenta and cyan) and black. If the original color is reproduced with ink other than yellow, magenta, cyan and black ink, it should be called spot color printing or spot color printing, not four-color printing.

3. Eight-color printing

Eight-color printing means eight-color rotation. That is, front and back CMYK are printed at one time. Eight colors refer to: black, yellow, magenta, cyan, red, blue, green and white.

Using eight-color printing machine to print, without any material restrictions, eight-color printing, high-precision perfect printing, clear images. The eight-color printing machine can print true-color pictures and texts on the surfaces of wood, glass crystal, ceramics, PVC, ABS, acrylic, metal, plastic, stone, leather, U disk shell, silica gel, textile cloth and so on. Simple operation, cost saving, one-time full-color imaging, zero defect rate, no need for film making, replacing traditional processes such as screen printing, pad printing and thermal transfer printing.