Is my boss including customers, we sometimes trouble because of the color difference problem of
food packaging bags?
It is a serious problem, food packaging bags have no beautiful appearance, can affect your product image, so I come to this and you talk about what reason is caused?
A quality printing ink, ink quality is one of the main factors that decided to print color consistency.
To solve the problem of color difference, will be selected first quality is stable, and there is no deviation of ink color.
Even strict control in the process of printing ink used by mixed solvent volatilization speed, when the volatile too fast, ink transfer rate is likely to reduce, will affect the color of the food packaging printing.
Second, the plate cylinder plate cylinder impact on ink consistency is mainly manifested in the following aspects: 1, the wall version: the ink transfer to reduce, thus affect the color of the food packaging bags.
Version with a solvent or blocked in special cleaner clean plate cylinder, at the same time to take measures against the causes of plugging version to make it back to normal.
2, the plate cylinder wear: when food packaging printing large plate cylinder wear degree is larger, the printing ink will change, on the whole, tend to be thin 3, plate design and color management: when making plate design should fully consider the printing and post-press processing technology.
Area such as some nodes hierarchy and level, color easily happened in the process to deal with, to ensure food packaging is colorful.
Three, eye color and color control instruments were used to detect everyone observe the result of the color is not completely the same.
Although the naked eye is good at color, but not good at memory colors, so with the naked eye to judge gradation is unreliable.
So need to adopt color control instrument testing, they have a guarantee.
We all learned?
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