Packaging how to avoid color printing color distortion?

In flexible packaging operation have many sets of color processing system, on the color packaging printing color has a certain control. In order to better serve customers, professional manufacturer of flexible packaging packaging specially collected their printing experience, hope can be found to help businesses with colored bags order demand on the packing bag of suppliers. One, the main factor that cause the color distortion 1, colour recovery processing color distortion caused by modern printing generally use C, M, Y, K four-color ink reproduce color, purity problems because of the ink itself, and also can produce the color distortion when printing overprint. Color printing color distortion caused processing and 2 C, M, Y, K generic color, four color printing ink and the collected digital collection equipment computer picture information is generally R, G, B, and therefore need to convert the picture information before printing plate into C, M, Y, K method, namely the color separation processing. The so-called & other; Color & throughout; Is the picture of each pixel color information ( General is R, G, B color information) Decomposition into suitable printing C, M, Y, K method of color information. In the process of color separation will cause color information away. When color separation, simply on the basis of printing eligibility, printing ink, paper, set up correctly color separation parameters ( Such as setting outlet extension value, gray balance parameters, black plate order adjustment, etc. ) To the output of high quality color piece, as far as possible to reduce the loss of color information. 3, printing pictures most of the original manuscript is color distortion is got through the photography method. About photo manuscript, in addition to constitute color distortion in the process of photography because of improper operation, because the color is a pigment color reappearance of the materials, such as attenuation of color and color material is very short, and therefore may cause photo color distortion. Secondly, with the widespread of digital cameras, digital picture manuscript more and more, and the technical requirement of digital cameras for operators greatly improved, because the operator's technical level is poor, photography out pictures briefly present dim, confused picture, constitute the original color distortion. 4, scanning color distortion caused processing photos of the original pictures density is successional, need to collect picture information into the computer. When use scanner scan pictures, need to put the picture into successive pixels, each pixel point on the line by line to collect original information of R, G, B. In the process of scanning, will cause the lost of pixel color information, and the picture processing is based on the collected information as the foundation, all about color operation is conducted on the basis of this, also does not increase the picture of color information. About the photo for the manuscript, therefore, scanning is a very crucial role in picture processing, improper operation will cause the picture color distortion. 2, 1, the first image how difference color distortion benchmark legal person in the eye of color must be adaptability. Picture about color distortion of thin, repeated recognition of the investigation would weaken. Therefore, in judging whether there is any color distortion when using the image of the first to clean the limitations of human eye color vision is an important way to found the color distortion. In 2 days, neutral color standards law has a lot of neuter color, like black, white, gray, etc. , they are a profusion of color in the international zero, we can serve as the basis of difference color distortion. 3, color standards law skin colour is the colour of people know best, any figure drawing, especially is given priority to with portraits of the picture, can according to the colour of the skin as the basis of differences in the color distortion. Regardless of yellow skin, white skin or black skin, the skin has a rules, that is bloody. Namely: Huang Zhongyou red, white inside deeply red or dark red, the characters in the picture color of skin slants yellow will give the person produces the feeling that the sick. Under normal circumstances, even if the characters in the picture really yellow skin colour, also want to adjust for color in color correction, namely Huang Zhongyou red. In the operation of packaging color printing, packaging to the main factors of distortion and the difference method can grasp skilled, and ensure the high quality fruit bags, arrived in customer heart shape.