The color difference problem of lift-up flaps book products has been troubling the lift-up flaps book workers, and whether the color difference problem can be effectively controlled is a measure of product quality, reputation and the skill level of the operator's master, so, It is the concern of every lift-up flaps book worker, and it is also the next step on the road of lift-up flaps book, quality and service are the lifeblood of a business.

Let's pay attention to the color difference of lift-up flaps book. Some lift-up flaps book products have the same color of the same batch of products, but there is a color difference with the color of the sample. Another point is that there is a color difference in the same batch of colors, some are consistent with the sample, but some are inconsistent with the sample.

1, human factors: not related to the skill level of the captain, but related to the responsibility of the captain, since the color of the same batch can be consistent, indicating that the skill level of the captain is not low, but not the same can be printed down is the responsibility of the captain, and does not exclude the responsibility of the signer.

2, paper color: Paper with different whiteness has a different effect on the color of the ink layer of the lift-up flaps book, because different whiteness is equal to adding different black, red, blue, or yellow to the ink, so although the amount of ink is the same in the lift-up flaps book, the hue does not change. But in fact, the ink has a certain transparency, then the color will also be presented with the whiteness of the paper, because the weight, size, specifications are the same, but the production batch and date are different, the whiteness of the paper will be different, so try to choose the same whiteness of the paper as the same product lift-up flaps book paper.

3. Gloss and smoothness of paper: The gloss of lift-up flaps book depends on the gloss and smoothness of the paper. Offset color lift-up flaps book is when the light incident on the surface of the paper, the light is reflected to the retina of the human eye, and the color is seen through the light and action accepted by the color sensing cells. If the gloss and smoothness of the paper are high, Main color light saturation, if the surface of the paper is rough, low gloss, it will produce diffuse reflection, it will reduce the saturation of the main color light, so that our eyes observe the color of the lift-up flaps book product feeling lighter, the same amount of ink is measured with a densitometer, the paper with high smoothness, the density value is high, and vice versa.

4, paper surface treatment: lift-up flaps book products through peritoneum, glazing, calendering, oiling, printing and other surface processing, there will be different degrees of hue changes, some of these changes are physical changes, some are chemical changes, physical changes are mainly reflected in the product surface increase specular reflection, which has a certain impact on color density, chemical changes mainly from the peritoneum, Glazing oil, UV oil, etc., this material contains a variety of solvents, which will make the color of the lift-up flaps book ink layer chemical reaction and cause the color change. So when it comes to the latter process in the lift-up flaps book, consider these chemical and physical reactions.

There are many factors that form the color difference of the lift-up flaps book, and there are more than these control methods, which requires us to constantly explore and accumulate in the operation of the lift-up flaps book, which is also conducive to the improvement of our own capabilities. The higher the customer's requirements for lift-up flaps book products, for us, it is pressure and motivation.

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